text:
A hydropneumatic capacitor particularly useful in sprinkler systems and comprising an air-water accumulator tank connected by conduit means to a low gallonage water source and by a normally closed valve means to a sprinkler head. The valve means possesses a predetermined pressure threshold of operation for rapidly opening to discharge water from the tank through the sprinkler head. Upon each discharge from the tank, air is pumped into the tank by operatively associated pump means to charge the tank with compressed air.
Claims available in
Description (OCR text may contain errors)
[58] Field 61 Search 61/12, 13; 137/489, 211.5, 137/491, 492.5; 138/26, 30; 169/9, 13; 239/99; 251/29, 33, 35, 38,45, 65; 141/46, 1 1 47,49, 52, 54, 192, 285
References Cited UNITED STATES PATENTS 2,863,600 1 12/1958 96 116166161 137/2115 3,269,318 8/1966 Telford etal. 137/2115 3,376,013 4/1968 Mallett 251/65 3,478,776 10/1969 Royer 137/491 /0/;g 961917a 66 m5 we; 97 96 74 6772 \t /07 5 90 da 05160 9%? 95936g6450 HCCUMULA 70/? RINK United States Patent 1191 1111 3,818,928 Carsten 1' June 25, 1974 1 HYDROPNEUMATIC CAPACITOR 3,570,542 3/1971 0116 6161 251/29 x 3.572.359 3/1971 Welse 137/4925 x [75] Inventor: Paulw- Caste", Mallbu' Cahf- 3.598.323 8/1971 JOhl'lSlOl'l 6161., 239/99 x [73] Assignee: CVC Company, Santa Ana, Calif. P E H S B H I rimary xaminerouston e ,.r. [22] Flled' 1972 Assistant Examiner-Frederick R. Schmidt [21] Appl. No.: 223,151 Attorney, Agent, or Firm-Harris, Kern, Wallen &
Tinsley [52] 11.5. CI 137/211.5, 137/491, 137/492.5,
138/30, 239/99, 251/38, 251/ [57] ABSTRACT 51 161.131. B67d 5/54,F16k 31/12 A hydropneumatlc capacltor Pamcularly useful sprinkler systems and comprising an air-water accu mulator tank connected by conduit means to a low gallonage water source and by a normally closed valve means to a sprinkler head. The valve means possesses a predetermined pressure threshold of operation for rapidly opening to discharge water from the tank through the sprinkler head. Upon each discharge from the tank, air is pumped into the tank by operatively associated pump means to charge the tank with compressed air.
8 Claims, 8 Drawing Figures s ew/(1.512
z I 46- lllllllllll PATENTEUJURZBIQM 7 3.818.928
sum 20F 2 FIG. 2.
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o IO 20 3o 40 o 60 5ECON05 ACCUMULATOR TANK PRESSURE CURVE FIG. 6b. I
\' 50 "5 25 x O V 0 IO 3O 4O 5O 60 SECONDS AIR PUMP PRESSURE cum E 75 5 k FL 5 8 v Q1 0 O lo 20 6O 5ECOND$ compezss/ou CHAMBER PRESSURE 1 HYDRUPNIEUMATIC CAPAWOR The present invention relates to hydropneumatic capacitors and more particularly to such a capacitor which is ideally suited for use in sprinkler systems for agricultural and turf irrigation as well as for environmental dust control.
Geneally speaking, there are two basic forms of sprinkler irrigation systems. The first includes an array of closely spaced sprinkler heads connected by piping, valves, and controls to a relatively low gallonage water source. Such systems are usually employed as residential lawn irrigation systems. Because of the extensive piping and controls required in such systems, as well as the high cost of the component parts and the installation thereof, such systems are not generally employed in the irrigation of larger areas such as golf courses, farm fields, and the like. The second form of sprinkler irrigation system is usually employed in such situations.
The second form of sprinkler irrigation system in cludes a fewer number of widely separated sprinkler heads connected by piping to a water source. The water source is a high gallonage source. This allows the sprinkler heads to apply water over relatively long distances and permits a fewer number of sprinkler heads to apply water to a large area.
While the use of a high gallonage source permits discharge water over long distances, it also results in a rather steady application of large quantities of water to the soil being irrigated. Usually, the water is applied to the soil faster than it can be absorbed. Under such conditions, quantities of water accumulate in puddles and ponds on top of the soil while other quantities of water run off and produce undesired soil erosion. To avoid such occurrences requires the addition of manual or electrical valves and controls to produce a timed and successive operation of the sprinkler heads in the second; form of the sprinkler system. This material increases the purchase price as well as the cost of installation and maintenance of suchsystems.
The present invention is directed to a hydropneumatic capacitor including in combination an air-water accumulator tank, quick-opening normally closed valve, and an air pump, for use in sprinkler systems of the second form. The capacitor is designed to enable such systems to utilize low gallonage water sources and to intermittently discharge water from the sprinkler,
heads thereof over long distances. The rate of discharge is controllable to insure that the soil will absorb all water dispensed by the sprinkler heads, thereby preventing undesired puddling, water run-off, and soil erosion.
Accordingly, it is a general object of the present invention to provide the second form of sprinkler irrigation system with simple and economical means for automatically dispensing measured quantities of water without use of extensive electrical or electromecham duit means to a low gallonage water source and by a normally closed valve to a sprinkler head, the valve possessing a predetermined pressure threshold of operation for rapidly opening to discharge waterfrom the tank through the sprinkler head.
Still another object of the present invention is to provide a capacitor of the foregoing character including air pump means for pumping air into the tank to charge the tank with compressed air upon each discharge of water therefrom.
A still further object of the present invention is to provide a hydropneumatic capacitor of the'foregoing character wherein the valve means comprises a magnetically actuated valve for rapidly and momentarily opening to discharge desired quantities of water through the associated sprinkler head at predetermined and controllable time intervals.
Another object of the present invention is to provide a hydropneumatic capacitor of the foregoing character which is substantially insensitive to pressure changes in the line supplying water thereto and which may be regulated to discharge like quantities of water independent of its'placement at different altitudes in a sprinkler irrigation system.
The foregoing as well as other objects and advantages of the present invention maybe more clearly understood by reference to the following detailed description when considered with the drawings which, by way of example only, depict one form of hydropneumatic capcitor connected to a sprinkler head and embodying the features of the present invention.
In the drawings:
FIG. 1 is the side view of the hydropneumatic capacitor and sprinkler head combination supported on the ground and ready for connection to a water source for dispensing quantities of water at a predetermined rate;
FIG. 2 is the side view of the combination illustrated in FIG. 1 partially in section and showing the interior of an air-water accumulator tank of the capacitor;
FIG. 3 is a sectional side view of a portion of the capacitor including conduit means for supplying water to the accumulator tank and to valve means for regulating operation of the capacitor; I
FIG. 4 is a sectional side view of air pump means for the capacitor;
FIG. 5 is a sectional side view of one of the check valves included in the air pump means; and
FIGS. 6a, 6b, and 6c are curves schematically representing changes in pessure at various points in the capacitor during operation thereof.
In the drawings, the hydropneumatic capacitor is denoted by the numer 8, and as shown in FIG. l'may be supported on the ground by a tripod 9 including a sup port ring ltland three legs 11a, b, and c. Basically, the capacitor 8 comprises a fluid or air-water accumulator tank 12 connected by conduit means 13 to a low gallonage water source (not shown) and by normally closed valve means 14 to a discharge means 15. The conduit means 13 supplies water to a lower portion of the tank 12 to rise within the tank and compress air in an upper portion thereof. The valve means 14 possesses a predetermined pressure threshold of operation. When the fluid pressure in the tank reaches the predetermined threshold value, the valve rapidly and momentarily opens to discharge liquid from the tank through the discharge means 15. As fluid pressure in To accomplish this, the illustrated conduit means 13 comprises a tube 21 extending vertically through a closed top 22 of the tank to a point immediately adjacent the tank bottom 19. The tube 21 is open at its lower end to dispense water from the source to the lower portion of the tank. Theupper end of the tube 21 i is also open and is secured in an internally threaded bottom port 23 of a main housing 24.
In addition to the bottom port, the main housing 24 includes internally threaded top and side ports 25 and 26. The top port 25 is adapted to receive the connecting pipe 27 of the discharge means 15, here a conventional sprinkler 28 head of the rain-bird type. The side port 26 is adapted to receive a flow control valve 29 having its input connected to a manually adjustable spring-loaded pressure regulating check valve 30.
The flow control valve 29 is designed to automati cally regulate the rate of flow of water into the tank 12 from the source independent of pressure changes upstream of the flow control valve. Preferably, the flow control valve is of the type described in copending patent application Ser. No. 168,316, filed Aug. 2, 1971, entitled AUTOMATIC RATE OF FLOW CONTROL VALVE, now U.S. Pat. No. 3,703,913. As illustrated most clearly in FIG. 3 and as described in the copending application, the flow control valve includes a tubular housing 31, an orifice plate 32, and a coinically shaped helical spring 33. One end of the housing 31 is externally threaded for attachment to the internally threaded side port 26. An opposite end of the housing is internally threaded for receiving an externally threaded portion of the check valve housing 34. The
' orifice plate 32 is seated within the housing 31 transverse to the direction of fluid flow therethrough and is secured in place by a threaded sleeve 35 with a base coil of the spring 33 seated on an upstream face of the orifice plate. Thus arranged, the coils of the spring 33 are adapted to move axially toward and away from the orifice plate with changes in the pressure differential thereacros s to automatically regulate water flow through the orifice plate to a predetermined rate independent of pressure changes upstream of the flow controlvalve. Q
In addition to the housing 34, the check valve 30 includes a tubular coupling 36 having externally threaded lower and upper ends 37 and 38. The lower end is adapted for connection by suitable piping to the water source. The upper end is secured in an internally threaded lower port 39 of the check valve housing. Within the check valve housing, the upper end of the coupling 36 is shaped to define an annular seat 40 for a valve disc 41 connected to a valve stem 42. The valve stem rides vertically in a cylindrical cavity 43 in the lower end of an externally threaded rod 44. The rod extends into the housing 34 through a threaded top port 45 and carries a knob 46 external to the housing. Handturning of the knob 46 adjusts the vertical location of the lower end of the rod 44 within the housing and controls the compression of a coil spring 47 bearing on a top of the valve disc 41.
Thus arranged, the valve disc 41 is normally urged by a spring 47 onto the valve seat 41). As water flows upwardly fromthe source to the capacitor 8, it engages the valve disc 41. The pressure of the water, being the highest pressure in the sprinkler system, is sufficient to overcome the force of the spring 47 causing the valve disc 41 to rise from the seat 40 and permit water flow through the check valve.
In flowing through the check valve 30, the water suffers a pressure loss determined by the precompression of the spring 47 as hand-adjusted by the rod 44. By selective adjustment of the check valve for each capacitor in a sprinkler system, the water pressure losses may be selectively controlled to insure that water at a common pressure is applied to each capacitor independent of the relative altitudes or elevations of the capacitors within the system.
Further, the check valve 311 as constructed, functions to prevent the back flow of water from the capacitor upon a 10s of pressure upstream thereof or a turn-off of the sprinkler system. This insures that the capacitor will be charged and ready for operation upon a subsequent turnon of the system.
Thus, with the conduit means 13 connected to a low gallonage water source, the water flows at a predetermined and controlled rate through the check valve 30 and flow control valve 29 and into the tube 21. From the tube, the water is dispensed at the lower portion of the tank 12 to rise therein. As the water rises within the tank, it compresses the air in the upper portion thereof. The increase in fluid pressure is transmitted through the water to the normally closed valve means 14 until the pressure threshold of operation is reached. At that time, the valve rapidly and momentarily opens to discharge water at the threshold pressure from the tank through the sprinkler head 28.
With regard to the foregoing, it is important that the valve means 14 be characterized by the rapid substantially frictionless operation at the predetermined threshold value, which should be adjustable. To accomplish this, the illustrated form of the valve means 14 comprises a normally closed main valve 48 and a magnetically actuated pilot valve 49 for regulating operation of the main valve.
As illustrated most clearly in FIG. 3, the main valve 48 comprises a valve disc 50, a tubular valve stem 51, a diaphragm 52, a spring 53, and a needle valve 54. These are all enclosed in a cover member 55 secured by bolts to a side of the main housing 24. The valve disc- 50 is adapted to fit through a side opening 56 in the main housing and is continuously urged by the spring 53 to rest on a valve seat 58. The valve seatis defined by an inner annular shoulder 57 around the side port 26 and is open to the conduit means 13. The valve stem 51 is externally threaded at one end and is adapted to screw intoan internally. threaded central hole 59 in the valve disc 50. A nut 60 locks the valve stem to the valve disc with an annular shoulder 61 on the valve stem bearing tightly against a washer 62 to secure the diaphragm 52 against a downstream face of the valve disc.
The annular marginal edge of the diaphragm is secured between marginal edges of the cover member 55 and an outside wall of the main housing 24 around the opening 56. The diaphragm thus acts as a frictionless seal between the valve disc 50 and the inner side wall of the cover member 55 and with the cover member defines a chamber 63 for receiving water flowing through the valve stem and small openings 64 in the stem behind the disc 50. The pressure of the water in the chamber 63 assists the spring 53 in normally seating the disc 50 on the seat 57.
To guide the valve disc 50 in its movement onto and away from the seat 57 with operation of the main valve 48, the end of the valve stem 51 remote from the valve disc is of a reduced diameter to define a shoulder 65 and is adapted to ride in a sleeve bearing 66. The bearing is secured in a cavity 67 in the end of an externally threaded rod 68. The rod extends into an internally threaded cylindrical projection 69 from the cover member 55 for hand-turning by a knob 70 to regulate the travel of the valve disc 50 from the valve seat 57 and hence to a degree, the rate of water flow from the capacitor upon actuation of the valve means 14. In addition, the rod 68 carries the needle valve 54 for metering the flow of water into the chamber 63.. As illustrated, the needle valve 54 extends from'the base of the cavity 67 and into the tubular valve stem 51 to seat against an interior shoulder 71 defined by a reduction in the diameter of the opening in the valve stem at an upstream end thereof. Thus, in addition to controlling the travel of the valve disc 50, a turning of the rod 68 also regulates the bleeding of water through the valve stem and into the chamber 63.
As previously indicated, the fluid pressure exerted on the downstream side of diaphragm 52 combines with the force of the spring 53 to maintain the valve disc 50 tightly on the valve seat 57 to prevent fluid flow through the valve means 14 until the fluid pressure in the tank 12 reaches the threshold pressure value, as detected by the pilot valve 49. In this regard, the pilot valve basically includes a valve seat 72, a magnetically attractable valve disc 73 and magnet means 74. The valve disc 73 is normally seated on the valve seat 72 to block fluid flow to the sprinkler head while the magnet means 74 is normally separated from and movable toward the valve disc as fluid pressure increases in the tank to rapidly and momentarily draw the 'valve disc from the valve seat when the fluid pressurereaches the threshold value. This, in turn, rapidly and momentarily actuates the main valve 48 to permit water in the tank to be discharged through the sprinkler head. i i More specifically, the valve seat 72 is formed by an annular flange 75 surrounding an orifice 76 in the cover member 55. The orifice 76 communicates with 1 an orifice 77 in a side of the main housing 24 through a hole 78 in the diaphragm'52. The valve disc 73 is formed of a magnetic material and is housed within a case 79 of non-magnetic material.
The case 79 includes a main cylindrical portion 80 for receiving the valve disc, a closed cylindrical projection 81 coaxial with the cylindrical portion, and an annular flange 82 extending from a base of the main cylindrical portion. The projection 81 is adapted to slidably receive a valve stem 83 of nonmagnetic material extending from the valve disc and a coil spring 84 for normally urging the valve disc toward the valve seat 72. The annular flange 82 is captured and secured between an outer face of the cover member 55 and an annular flange 85 projecting outwardly from the open end of a cylindrical housing 86. The housing is adapted to receive the case 79 and the magnet means 74.
Also captured between the flange and the cover member 55 is a diaphragm 87 having a central port 88 communicating with the orifice 76 and adapted to receive a needle valve 89 carried by the valve disc73. Thus arranged, the diaphragm 87 combines with the case 79 to define a fluid chamber 90 for receiving water from the chamber 63 through a port 91 in the cover member and a small hole 92 in the diaphragm 87. The pressure of the fluid in the chamber 90 combines with the force of the spring 84 to maintain the needle valve 89 seated in the central port 88 and the valve disc 73, in effect, seated on the valve seat '72 to normally prevent water flow through the orifices 76 and 77 to the sprinkler head.
As previously indicated, the magnet means 74 is mounted in an end of the housing 86 adjacent the case 79 for movement toward and away from the valve disc 73. In this regard, the illustrated form of the magnet means includes a magnet 93 having a cavity 94 therein for receiving the cylindrical projection of the case. The magnet is secured on one end of a rod 95 slidablysupported for axial movement through a hole 96 in the base 97 of a double ended coupling member 98. One end 98a of the coupling member 98 is secured to and closes the end of the housing 86 remote from the valve seat 72 while an opposite end 98b of the coupling member is adapted to receive a control means 99 for moving the magnet means toward and away from the valve disc in response to fluid pressure changes in the tank 12.
In the drawings, and as most clearly shown in FIG. 3, the illustrated control means 99 includes a cylinder 100, a piston 101, a diaphragm 102 and a coil spring 1 103. The cylinder 100 is defined by the end 98b of the coupling member and a cylindrical cap 104secured to the end98b by a plurality of bolts 105. The piston 101 is secured to an end of the rod 95 while the spring 103 coils around the rod and bears on the base 97 of the coupling member and a base of the piston to urge the piston and hence the magnet away from the valve disc 73.
The diaphragm 102 is bell-shaped with a central portion secured by a washer 106 and screw 107 to a top of the piston 101 and a marginal edge portion captured and sealed between abutting ends of the cap 104 and end 98b of the coupling member. Thus arranged, the diaphragm 102 acts as a frictionless seal between the piston 10] and the cylinder 101 and divides the cylinder into two isolated compartments 100a and 100b. The compartment 100a includes the rod 95 and coil spring 103 while the compartment 100b includes an end port 108 connected to a fluid line from the tank 12. In this regard, a sleeve fitting 109 is secured in the port and receives an elbow 110 forconnection to a tube 111 (see FIG. 2) extending from a port 111' (see FIG. 3) in the main housing 24 immediately above the tube 21. The tube 111 defines a fluid passageway from the tank to transmit fluid pressure from the tank to the compartment 100b. f r
As the fluid pressure in the tank slowly increases, (as illustrated by the curve of FIG. 6), the fluid pressure is transmitted to the compartment 10% to exert a force on the piston 101 moving it slowly against the force of the spring 103 to the right within the cylinder 100. As the piston moves slowly to the right, it drivesthe rod 95 and hence the magnet 93 to the right over the end of the case 79. At a predetermined point in the travel of the magnet, the magnetic attraction between the magnet and the valve disc 73 is suflicient to overcome the force of the spring 84 and the fluid pressure acting on the valve disc. At this point in the travel of the magnet 93, the valve disc 73 rapidly snaps to the end of the case 79. This occurs at the threshold pressure value.
When the valve disc snaps against the end of the case, the needle valve 89 moves from the central port 88 in the diaphragm 87. Liquid then rushes through the port and through the orifices 76 and 77 creating a pressure differential across the diaphragm 87 which causes the diaphragm to move from the valve seat 72. This allows water to rapidly surge from the chamber 63 through the port 91 and, in turn, instantaneously creates a pressure differential across'the diaphragm 52 and valve disc 50 sufficient to rapidly move the valve disc from the valve seat 57. This opens the main valve and allows fluid in the tank 12 to rapidly surge upward through the tube 21 and to the sprinkler head.
In FIG. 6a, the threshold value is represented by the maximum pressure at which time water surges from the tank to the sprinkler head resulting in a rapid reduction in the fluid pressure within the tank 12. Because of the rapid flow of high pressure fluid from the tank to the sprinkler head, the sprinkler head is able to discharge the water over a long distance to provide the desired coverage by the sprinkler head of a relatively large area adjacent thereto. Thus, from a low-gallonage water supply, the capacitor 8 is able to periodically generate a high pressure charge of waterfor dispensing over long distances by the sprinkler head.
Of course, as the pressure drops in the tank 12, a like pressure reduction occurs in the compartment 10% of the cylinder100 allowing the spring 103 to drive the magnet 93 away from the valve disc 73 and the spring 84 to again seal the needle valve in the central port 88 of the diaphragm 87. As this occurs, fluid pressure rapidly builds in' the chamber 90 and combines with the spring 84 to seal the diaphragm 84 on the seat to close the pilot valve 49. As the pilot valve closes fluid pressure builds in the chamber 63 to combine with the spring 53 to close the main valve 48 readying the capacitor foranother cycle of operation.
In practicing the present invention, it has been found that uniform cyclic operation is most easily maintained if upon each discharge of the capacitor 8, the tank 12 is charged with a quantity of compressed air prior to water recharge of the tank. In the preferred form of the present invention, this is accomplished by the pump means 16. Generally speaking, the pump means 16 is responsiveto fluid pressure immediately downstream of the valve means 14 for pumping compressed air into the upper portion of the tank 12. The form of the pump means illustrated in FIG. 3 and FIG. includes a hydropneumatic pump 112 and a compression chamber 113. The pump 112 is adapted to respond to pressure of the fluid rapidly surging through the valve means 14 to compress a quantity of air and store it in the compression chamber 113 until the pressure in the tank 12 drops below the pressure in the compressionichamber, at which time the high pressure air is allowed to slowly bleed into the tank.
More particularly, the hydropneumatic pump 112 includes a closed housing 114, a diaphragm 115, and a coil spring 116. The housing is formed of two similar cup-shaped members 117 and 118. The member 117 includes an outwardly projecting marginal edge which is bent outwardly and over an outer marginal edge of the member 1 18 to form a closed air tight chamber 1 19 which is divided by the diaphragm into two isolated compartments 119a and 119b. In this regard, the marginal edge of the diaphragm is clamped between a pair of washers 120 and 121 and mating portions of the marginal edges of the cup-shaped members.- A central portion of the diaphragm is clamped between a pair of plates 122 and 123 secured by a nut 124 on one end of a rod 125. An opposite end of the rod 125 is hollow and extends into the compartment 119a and into a sleeve bearing and coupler 126 securing the housing 114 to the main housing 24. As shown in FIG. 4 and as diagrammatically represented in FIG. 3, the coupler extends into a port 127 in the main housing 24 immediately downstream of the valve means 14 to define a fluid inlet port for the compartment 1190 through the hollow end of the rod and side ports 128 therefrom.
The coil spring ll6is seated in the compartment 11% and normally urges the diaphragm 115 away therefrom and from an air inlet port 129 and compressed air outlet port 130, having check valves 131 and 132 seated therein. Generally speaking the check valve 131 is designed to open and allow air at atmospheric pressure to be drawn into the compartment 11% as the diaphragm 115 moves toward the fluid inlet port in response to a drop in fluid pressure and in response to the force of the spring 116. The check valve 132 is designed to open when the air pressure in the compartment 119b exceeds the pressure in'the compression chamber 1 13 to which the check valve is connected.
Thus in operation, and as graphically depicted in FIG. 6b, as the valve means 14 opens and water at the threshold pressure surges to the sprinkler head, the increase in fluid pressure is transmitted through the fluid inlet port into the compartment 119a. This produces a diaphragm 115 to its orginal position. As this occurs the check valve 132 rapidly closes and the check valve 131 opens to draw air into the compartment ll9b readying the pump for another cycle of operation.
As illustrated, the compression chamber 113 comprises a tube connected to the check valve 132 and toa similar check valve 133 secured in a port 13311 in the top of the tank 12. The check valve 133 is designed to open when the fluid pressure in the compression chamber 113. exceeds the fluid pressure in the tank 12 thereby permitting compressed air to bleed into the upper portion of the tank. This operation is depicted by the curve of FIG. 60 and occurs shortly after the valve means 14 opens the fluid pressure in the tank exceeding the air pressure in the compression chamber 113 for a short period of time.
By way of example only, the check valves 131, 132 and 133 may be of the type shown in FIG. 5 comprising a tubular housing 134 having externally threaded opposite ends 135 and 136 and a hexagon-shaped central portion 137. Within the housing, the check valve includes a valve disc 138 carried by a valve stem 139 having an enlarged end 140. A coil spring 141 bears on the end 140 and anannular shoulder M2 to normally urge an O-ring M3 on the valve disc against an annular valve seat 144 to close the valve. Thus arranged, when the fluid pressure acting on the enlarged end Mill and O- ring 143 develops a force greater than the force of the spring Ml the valve opens. in the air pump means lid, the valve disc of the check l3l faces the compartment 11% while the valve discs of the check valves 132 and 133 face the compression chamber 113 and tank 12 respectively to function as previously described.
The curves of FIGS. 6a, 6b and 6c depict the cyclic nature of the capacitor operation. As previously indicated the frequency of operation as well as the rate of water discharge are controllable The frequency of operation may be controlled by regulation of the flow control valve 29 to change the rate of water flow into the tank 12. The frequency of operation may also be controlled by changing the value of the pressure threshold of operation of the valve means as by changing the springs or magnet means therein. Regulation of the needle valve 54 will also vary the rate of closure of the valve means 14 and hence alter the frequency of operation of the capacitor. The rate of discharge of water from the tank 12 may be controlled by the adjustment of the rod did to limit the travel of the main valve as previously described.
In view of the foregoing, it is appreciated that the present invention provides a hydropneumatic capacitor ideally suited for use in sprinkler systems and which enables a sprinkler head to intermittently discharge water from a low gallonage source over long distances and at a controllable frequency and rate.
While a particular form of hydropneumatic capacitor has been described in some detail herein, changes and modifications may be made in the illustrated form without departing from the spirit of the invention. Therefore, it is intended that the invention be limited in scope only by the terms of the following claims.
I claim: 1. A hydropneumatic capacitor comprising: a closed fluid accumulator tank; a conduit means connected to a source for supplyin liquid to a lower portion of said tank to rise within said tank and compress air in an upper portion thereof; liquid discharge means; normally closed upstream pressure sensitive valve means having a predetermined pressure threshold of opening connected to'said discharge means and to said tank for rapidly opening to discharge liquid from said tank through said discharge means when fluid pressure in said tank reaches said predetermined threshold value and for automatically closing when fluid pressure in said tank drops below said predetermined threshold value; and air pump means responsive to fluid pressure downstream of said valve means for pumping com- .pressed air into said upper portion of said tank after the fluid pressure in said tank has dropped below said predetermined threshold value and said valve means has closed and including hydropneumatic pump means having a liquid inlet connected to said capacitor downstream of said valve means, an air inlet and a compressed air 6 compression chamber means having an inlet connected to said compressed air outlet and an out let connected to said upper portion of said tank for storing compressed air from said hydropneumatic pump and feeding it to said tank as the fluid pressure therein drops below the air pres- I sure in said compression chamber means.
2. The capacitor of claim 1 wherein said conduit means includes automatic rate of flow control valve means forautomatically regulating the rate of flow of liquid to said tank from said source independent of pressure changes upstream of said flow control valve.
3. The capacitor of claim 2 wherein said conduit means further includes a valve seat upstream of said flow control valve and a manually adjustable springloaded pressure regulating check valve for seating on said seat to prevent liquid back flow in said conduit means to said source.
4. The capacitor of claim l wherein said valve means includes:
a valve seat;
a magnetically attractable valve: disc;
first spring means for urging said valve disc to seat on said valve seat and block liquid flow from said tank to said discharge means; magnet means normally separated from and movable towards and away from said valve disc in response to fluid pressure increases and decreases respectively in said tank for rapidly and momentarily drawing said valve disc from said seat in opposition to said first spring means when said fluid pressure in said tank reaches said threshold value; and
second spring means for urging said magnet means away from said disc and for rapidly returning said magnet means to said normally separated condition when said pressure in said tank drops below said threshold value upon an opening of said valve means and a discharge from said tank.
5. The capacitor of claim d wherein said valve means further includes: 1
a case of nonmagnetic material covering said valve i disc, said case housing said first spring means be tween said case and said disc to normally urge said disc against said valveseat;
a cylinder;
piston means in said cylinder;
a rod extending from one side of said piston means and carrying said magnet means for movement toward and away from said case, said second spring means being located in said cylinder and bearing p on said piston means to normally urge said rod and.
a normally closed main valve and a magnetically actuated pilot valve for regulating operation of said rnain valve;
said main valve comprising a first relatively large valve seat open to' said con- .duit means,
a first valve disc having a port therethrough for passing liquid to a downstream side of said first valve disc,
' first spring means normally urging said first valve disc onto said first valve seat, and said pilot valve comprising a second relatively small valve seat open to said downstream side of said first valve disc and to said dischargemeans,
a second valve disc of magnetic material,
second spring means normally urging said second valve disc onto said second valve seat, and
magnet means normally separated from and movable toward said second valve disc as fluid pressure increases in said tank to rapidly and momentarily draw said second valve disc from said second valve seat when said fluid pressure reaches said threshold value.
7. The capacitor of claim 6 wherein said main valve further includes manually adjustable stop means downstream of said first valve disc for limiting travel of said first valve disc away from said first valve seat.
8. The capacitor of claim 1 wherein said air pump means further included:
diaphragm means in said hydropneumatic pump means dividing said hydropneumatic pump means into two isolated compartments, a first compartment including said liquid inlet and a second compartment including said air inlet and said compressed air outlet;
one-way check valve means at said air inlet and compressed air outlet of said hydropneumatic pump means and at said outlet of said compression chambet for only passing air into said second compartment through said air inlet as said diaphragm 'moves away from-said air inlet, for only passing fluid pressure in said upper portion of said tank.
Patent Citations
Referenced by
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Treatment with dimercaptosuccinic acid (DMSA), an oral chelation agent, was linked to reductions in the amount of lead in blood in young children in Zamfara State, Nigeria following environmental...
Researchers, pediatricians and parents agree that violent media increase child aggression
Majorities of media researchers, parents and pediatricians agree that exposure to violent media can increase aggression in children, according to a new national study.
Bullied gay and bisexual youth benefit from school connectedness
In a study of 951 lesbian, gay, and bisexual youth, those experiencing both cyber and school bullying were most likely to engage in aggressive and suicidal behaviors.
Review of cannabis research since 1993
In the past 20 years recreational cannabis use has grown tremendously, becoming almost as common as tobacco use among adolescents and young adults, and so has the research evidence.
1 in 10 schoolchildren 'require mental health interventions'
Schools have an important part to play in reaching children with mental health problems, argue child psychiatry experts writing in The Lancet.
Kids' oral language skills can predict future writing difficulties
Children's future writing difficulties can be identified before they even learn how to begin writing, according to a new study by Professor Phaedra Royle and Postdoctoral fellow Alexandra Marquis...
Prenatal exposure to viruses may cause type 1 diabetes and other autoimmune diseases in children
The incidence of type 1 childhood diabetes has been increasing rapidly worldwide. If blood sugar levels aren't well-controlled, juvenile diabetes can affect nearly every organ of a child's body.
Avoiding obesity during childhood through family meals
Increasing rates of adolescent obesity and the likelihood that obesity will carry forward into adulthood, have led to various preventive initiatives.
Too few parents make plans in case they die early
Parents are failing to make adequate plans for the children they would leave behind should they die early, reveals a new survey by the Childhood Bereavement Network, based at leading children's...
Factors identified that are associated with childhood brain tumors
Older parents, birth defects, maternal nutrition and childhood exposure to CT scans and pesticides are increasingly being associated with brain tumors in children, according to new research from the...
Prenatal BPA exposure could reduce children's lung functioning
Prenatal exposure to the common chemical bisphenol A is linked to diminished lung functioning and persistent wheezing in children, according to a new study.

subset: commoncrawl


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Are Women Really the Healthier Sex?
BALTIMORE -- Women in general are healthier than men and live longer, but the advantage comes at a price -- an increased risk of autoimmune diseases, a researcher said here. more
Connect with us.
Personalize your news feed.
In observance of the holiday, MedPage Today will not publish on Thursday, November 27. We will resume publication on Friday.
Are Women Really the Healthier Sex?
BALTIMORE -- Women in general are healthier than men and live longer, but the advantage comes at a price -- an increased risk of autoimmune diseases, a researcher said here. more
Magnetic ECG Sees Faulty Fetal Heart Rhythm
Checking fetal heart rhythms with magnetocardiography -- described as the "magnetic analog of ECG" -- may be able to diagnose long QT syndrome and allow intervention before the baby is born, researchers found. more
Low-Cal Diet Keeps Aging Rats Active
SAN DIEGO -- A diet with 30% fewer calories than normal preserved the interest and ability in laboratory rats to move around as they aged -- an effect also seen with exercise, researchers said here. more
Radiation at Surgery Equal to Whole-Breast RT
Intraoperative radiation therapy (IORT) for early breast cancer demonstrated noninferiority to whole-breast external beam radiation therapy (EBRT) in two randomized clinical trials. more
Potassium Trap May Work in Hyperkalemia
ATLANTA -- A novel drug that selectively traps potassium ions may improve the treatment of hyperkalemia in patients with chronic kidney disease, researchers reported here. more
Excess Weight Hikes Cardiac Risk All on Its Own
Being overweight or obese were risk factors for myocardial infarction and ischemic heart disease, even in the absence of metabolic syndrome, researchers found. more
New Therapy for MS on Horizon?
SAN DIEGO -- Stimulating dendritic cells with interferon-gamma caused them to release exosomes that promoted neuronal myelination in vitro and in live rats, offering a potential therapy for advanced multiple sclerosis. more
Patient Engagement: Is It Us or Is It Them?
Practice management consultant Rosemarie Nelson suggests that to meet meaningful use goals, practices may just need to brush up on their patient engagement skills. more
Atenolol Beats Lisinopril for HTN in Dialysis
ATLANTA -- For dialysis patients with hypertension and left ventricular hypertrophy, atenolol may provide better blood pressure control than lisinopril, with fewer cardiovascular risks, researchers reported here. more
Striking a Nerve: Shutdown Over but Effects Linger
Patients with depression may be one of the casualties of last month's 16-day government shutdown.Striking a Nerve is a blog by John Gever for readers interested in neurology. more


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Drag the home icon in this panel and drop it onto the "house icon" in the tool bar for the browser
Select "Yes" from the popup window and you're done!
Intrepid Networks
By Mary HoulihanChicago Sun-Times
CHICAGO — The Chicago Police Department is working with the Illinois Institute of Technology and the Rand Corp. on an innovative project that will help pinpoint hot spots of criminal activity.
Full story:
Cops go high-tech to pinpoint Chicago crime hot spots


text:
- Master Class: Are we at the End of 'International Relations'?
- Master Class - Non-market strategy: When mastering markets is no longer enough
- Master Class: Unlocking the power of enterprise gamification
- Master Class - Leading Through Innovation: Attitude for Success!
- Mesa Redonda sobre el tema de la Reestructuración de Empresas
- Education programs
- Media
- Blogs
- Publications
- Alumni Agenda
Alumni Agenda
Mobile Apps- The late 90´s dot.com boom all over again? How Telefonica is changing their attitude to Startups
IE Entrepreneurship Club Sep 13, 2012
Two guest speakers will discuss the current situation and how to take advantage of new opportunities.
IE Entrepreneurship Club will have two prominent speakers:
Joe Haslam, Chairman - HoT Hotels and Mentor at IE Venture Lab, who will speak about Mobile Apps.
Colin Watt, Director of Human Resources at Telefonica Product Development & Innovation, a Telefonica Digital company, who will speak about the relationship between Telefonica and Startups.
Additionally, there will be a presentation about the different events the Club has organized during the last months.


text:
'Man of Steel' Trailer Features Superman's Emotional, Ground-Shaking Journey (Video)
The reboot of America's most iconic comic hero is a character study with Christopher Nolan's serious touch.
With Bruce Wayne dining al fresco somewhere in Europe, it's up to Clark Kent to take on the mantle of DC's Very Serious Superhero.
In this first full look at the Christopher Nolan-produced, Zack Snyder-directed Man of Steel, it is clear that even a nearly invincible model-like he-man can suffer internal longing and emotional pain. This is Superman's origin story for the 21st century, placing the lost boy in a bleak Kansas town where he cannot be himself, having to hide the few bits of his truth that he knows.
But ultimately, it's impossible to hide superhuman strength, high morals and steely resolve, leading Clark (Henry Cavill) to travel to the furthest reaches of the world to avoid standing out and to find his true identity.
Man of Steel, which co-stars Russell Crowe, Amy Adams, Kevin Costner and Michael Shannon, hits theaters in June.
What Hollywood Earns
Top Galleries
Follow Heat Vision
- Mila Kunis Puts Post-Baby Body on Display For First Time Since Birth of Daughter Wyatt
- Rosario Dawson & Diego Luna Look Like Total BFFs on the Red Carpet!
- Vanessa Hudgens Granted Protection Against Stalker Trying to Marry Her
- Jennifer Lawrence Gushes About Her Good Looking Best Friend Liam Hemsworth


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View more Guides
Guide to Writers Conferences & Writing Workshops
Unabridged, continually updated guide to writing conferences, writers workshops, creative career writing programs and literary retreats, with 1245 programs. (
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search for programs
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Chuckanut Writers Conference
Program Description
Writers conference that includes speakers, panels, breakout sessions, authors' readings, reception with authors, pitch sessions with literary agents, book signings, open mic for attendees.
Program Length
2 days
Group Size or S:T Ratio
Program Focus
Autobiography/Memoir, Children's, Fiction, Nature, Non-fiction, Poetry, Publishing
2013: Alice Acheson, Bruce Beasley, Jeff Bender, Wendy Call, Karen Finneyfrock, Waverly Fitzgerald, Kathleen Flenniken, Mary Hammerbeck, Thor Hanson, Gary Luke, Frances McCue, Suzanne Paola, Brenda Peterson, Naseem Rakha, Natalie Serber, Jennie Shortridge
$259 (early bird through May 15 $229). Off-campus residence hall lodging available. Pitch sessions and marketing consultations are additional.
U.S. Locations
Bellingham, Washington
Calendar Link
Facebook Page
Anna Wolff
Conference Chairperson
Whatcom Community College Community Education
237 West Kellogg Road
Bellingham, WA 98226
United States
Related Sponsor Links
Study Homer and Write in Greece
Homer At Onar, A combined Seminar on The Iliad and Writer's Workshop on the beautiful island of Andros, Greece May 18-28, 2015
Island of Andros, Greece
Writer's Renaissance
It's not a Retreat-it's a Renaissance. We use Florence as a classroom to unlock our creativity, electrify our writing and eat lots of gelato! Apr 12-18, 2015
Florence, Italy
Algonkian Author Salon Commercial Novel Writing Program
The first truly competitive novel writing program created by literary agents, editors, and writers. No time wasting, no gimmicks. Straight talk.
San Francisco, CA : D.C., DC : Tampa, FL : Atlanta, GA : Chicago, IL : New Orleans, LA : Boston, MA : Raleigh, NC : New York, NY : Dallas, TX : Seattle, WA
Yale Writers' Conference
Writers' conference that includes workshops, individual conferences, master classes, craft talks, student & faculty readings. Jun 18-21, 2015 New Haven CT
New Haven, CT
The Asheville Christian Writers' Conference - Writers Bootcamp
3-day Smoky Mountain retreat conference features small editor/agent/publisher classes & discussion groups, intense writing workshops taught by award-winning authors. Feb 20-22, 2015 Asheville, NC.
Asheville, NC
The Florida Heritage Book Festival & Writers Conference
Join us for a celebration of writing and reading with noted authors in the nation's oldest city, Sep 25-27, 2014 St. Augustine, Florida.
St. Augustine, FL
Writing Immersion in Sustainable Tuscany
Holistic retreat near the Castle that Only God Knows - Tuscany - Creative writing, yoga, and painting workshops. May 2015
Assisi, Italy : Siena, Italy
Unicorn Writers' Conference
Network with 48 agents, 15 NYC book editors, and other guest speakers. Get MS feedback from industry shot-callers and hone your craft practical tutorials from publishing executives Mar 14, 2015.
Purchase, NY
ASJA Writers Conference
Expand Your Reach: Improve your career in blogging, books, articles, web content, social media, corporate projects, and much more. NYC, Apr
New York City, NY
Write on the Sound Writers' Conference and Pre-Conference
Located on Puget Sound, this affordable and intimate conference (limit 275) focuses on the craft of writing, plus information on marketing and specialty topics.
Edmonds, WA
Winter Poetry & Prose Getaway
Supportive workshops will energize and inspire your writing. Choose from fiction, nonfiction, memoir, screenwriting, poetry and more. Atlantic City area. January 16-19, 2015
NH : NJ : Scotland, : Wales, : Spain : United Kingdom
A Journey Into the Imagination, A 5 Day Writing Retreat
Writing Coach and novelist, Emily Hanlon, holds two annual fiction writing retreats. Journey Into the Imagination, 5 days, and a 10 Day Women's Retreat.
Wallingford, PA
Writers Studio at UCLA Extension
An intensive 4 days of instruction and writing. Participants choose from 10 workshops in which they work closely with a professional writer, limited to 15 students.
Los Angeles, CA
The Writer's Retreat of Your Dreams
The Writer's Retreat of Your Dreams: a week of unparalleled instruction, inspiration, community and deep rest in a stunning setting on the Northern California coast.
Bolinas, CA
Colrain Poetry Manuscript Conference
Bring your in-progress book-length or chapbook-length poetry manuscript to the decision-makers. The only conference designed to set poets on a path towards book publication.
Greenfield, MA : Truchas, NM : Wilmington, VT : Whidbey Island, WA : Washington,
San Miguel (de Allende) Writers' Conference
See why Tom Robbins said, "If Dante had had the San Miguel (de Allende, Mexico) experience, he might have written more about heaven and less about hell."
San Miguel de Allende, Mexico
Abroad Writers' Conference
A Summit of Professional Writers and Award Winning Authors. LAKE COMO June 21 - 28th. SPAIN December 13 - 20th. Workshops with Pulitzer Authors. Nightly Readings and Lectures.
San Francisco Bay Area, CA : LAKE COMO, Italy : Granada, Spain
2015 Las Vegas Writer's Conference
Las Vegas Writer's Conference has sessions and workshops for all levels of writers from beginners to ready to publish whether traditional or self publishing.
Las Vegas, NV
Eckerd College Writers' Conference: Writers in Paradise
Lectures on craft, roundtables, readings, receptions, daily workshops in Novel, Short Story, Nonfiction, Young Adult Writing led by award-winning and best-selling authors. Jan 17-25, 2015
St. Petersburg, FL
San Francisco Writers Conference
The 2015 San Francisco Writers Conference, a 'Celebration of Craft, Commerce and Community', features 100+ bestselling authors, agents, editors and publishers February 12-15.
San Francisco, CA
New York Writers Workshop: Pitch Conferences & Workshops
Three-day conferences for writers who pitch their book proposals to editors from major New York publishers. Oct 10-12 & Nov 7-9, 2014 New York, NY
New York City, NY
Free Expressions Seminars
Unparalleled instruction, feedback, and inspiration from industry professionals. Our simple goal: to help you achieve artistic and commercial success—now and for your entire writing career.
Minneapolis, MN : Hood River, OR : Virginia Beach, VA : Seattle, WA
PNWA Summer Writers Conference
Our mission is to develop writing talent through education, accessibility to the publishing industry, and participation in an interactive, vital writer community.
Seattle, WA
Algonkian Writers Conference Reviews - New York Pitch Conference Reviews
First novel published or no? Join the top .001 who have an actual chance of becoming published commercial authors. Straight talk. Only professionals.
San Diego & San Francisco, CA : New York, NY : Algonkian Park & Richmond, VA
Writing in Puerto Morelos With Joan Lee Hunter
Enjoy a week-long women's writing retreat with Joan Lee Hunter April 4-11, 2015, in Puerto Morelos, Mexico, a quiet fishing village on the Mayan Riviera.
Puerto Morelos, Mexico
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I'm so.in love with my baby that I just wanted to take his poop diaper home with me. I didn't but the love of your child will make you wanna do some crazy stuff. He also has a pacifier now which is so wonderful because he actually grips it and holds it in there. His day nurse is his mommy while he is away and I love love love love her. So he also loves her. Her love and care gets him healthier each day. Hmmmm what else? Oh... Eating healthy really helps breastmilk production if you planning on giving it a go. In fact I'm up and just finished pumping 6oz in 15 mins. And there are certain thing I have done to help with my milk production. Breast milk has taken over our freezer already and the Nurses are shocked. So I'm going to be sharing info with other moms on breast milk production. Please eat healthy mommies... You baby depends on you. And I am commended because of his appearance about my healthy lifestyle minus the stress. The days are going fast so I am preparing things for him to come home and doing things one day at a time. He has so much love..there is always someone visiting him or sitting with him despite the strict policy on visiting and his selected visitors which are all grandparnts and his grrand ma. They can't touch him... And I'm fine with that. Well... I guess I better get some sleep. I pump milk every three hours so need to beup at 6a.m. And sorry for the typos. I honestly have not been on my computer in almost a week so these update cone from my cell. Well... Again I want to say thank you and I love you all. However, despite whatever you are going through love yourself and you baby first. Let all negativity pass and deal with it after you baby makes it here safely. Again...this last part of my post comes from experience. I will post details on the stress I had to deal with during this pregnancy. It will be long and very personal but I know I'm not the only one going through it or having been through some sort of stress during pregnancy. In closing heeeeerrrrreees TRAVIS!!!
Baby Travis Weekly Update 11/19
Posted 11/19/2012
So, so, so, so, sooooo happy to read this!!!!!!!!!!!!!!! Congrats, he is beautiful!!!!!!!
Posted 11/19/2012
Honey he is beautiful and looks great. He is big! Especially for his gestational age. Please keep sending updates on Travis. Also, very interested in hearing about the breast feeding and how to increase supply!
Posted 11/19/2012
You say you are pumping 6 oz already. How much is he taking in right now? When did you start pumping so much?
Candice (./.) Gold Boobies
I'm Shiny
Candice (./.) Gold Boobies
Zachary born 05/23/2011Bany girl born 3/17/2013 CoA, PDA, ASD & CHF SURVIVOR *miracle baby*
I'm Shiny
Posted 11/19/2012
He looks sooo healthy for his gestational age!!! He is beyond beautiful and I love the updates!! Your strength and love is truly amazing and brings tears to my eyes! Keep up the great work Mommy and Travis!!!
Posted 12/02/2012
Bumping for an update! I pray things are staying positive!
Posted 12/02/2012
Hes beautiful...what a little champion :-)
Posted 12/02/2012
Our babies are not lab rats!
List of GMO foods, information is power.
Posted 12/02/2012
Bumping for updates
What's on your mind?Create a new post
Your growing child
Your 19-month-old: Week 4
Now that your 19-month-old has good hand-eye coordination and balance, and strong arm and leg muscles, she's capable of exercising her motor skills by climbing. Read More
Your 20-month-old: Week 1
At 20 months, your child should be able to run, though not as smoothly as he'll be able to later. Read More
Your 20-month-old: Week 2
Don't overreact to your toddler's behavior. Read More
Your 20-month-old: Week 3
If washing your toddler's hair is always a struggle, consider cutting his locks short so there's less to fuss with. Read More
Your 20-month-old: Week 4
Pacifier and bottle use often linger far into the second year. Read More


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Shared Serial Ports 1.1
Shared Serial Port - advanced utility to share real serial ports between applications so that all applications will receive/send data from/to real serial port simultaneously. Shared Serial Port creates virtual serial ports, which are same copies as real ones. Any virtual serial port will have the same name as the real one and any number of applications will be capable of using it at the same time.
See also: Shared Serial Ports, share serial ports, virtual serial port, split com port, real serial port sharing, sharing serial ports
Share Serial Ports 1.0
Share Serial Ports is an advanced utility for sharing real serial ports between multiple applications so that all applications will receive same data from real serial port simultaneously. It is achieved by creating virtual serial ports, exact copies of real ones. All virtual ports can send data to real serial port. You will be able to set port permissions to read, write or change control lines state for every application separately.
See also: real port sharing, Share Serial Ports, split serial port, add virtual port, virtual serial port, virtual com port, virtual serial port driver, sharing serial ports, serial port connection
Serial Port Splitter 3.5.2
Serial Port Splitter allows to share dataflow of one COM port between several applications or vice versa to join dataflow of several COM port devices to one application. Such program universality is achieved by means of virtual serial ports technologies. Moreover Serial Port Splitter allows to setup READ/WRITE or READ ONLY mode for splitted ports and READ/WRITE or WRITE ONLY mode for joined serial ports.
See also: serial port splitter, com port splitter, share serial port, share com port, com port sharing, serial port sharing, join serial ports, join COM ports.
Advanced Virtual COM Port 2.1.2
Advanced Virtual COM Port is the first software of its kind which includes both local and network
virtual COM port functions. It can share your real COM ports or create virtual COM ports and
connect them with a virtual null-modem cable locally or through the network. You can connect to a
shared port and use it just like it is on your machine. Virtual serial ports created by the
program look and work the same way real ones look and work.
See also: internet, lan, tcp/ip, driver, network, com, share, port, serial, virtual
Serial Splitter 3.0
Serial Splitter is an application, based on Windows kernel drivers technology and Eltima Virtual Serial Ports Driver. It allows you to share real serial port between several applications in a way that all applications will receive same data from one serial port simultaneously. It is achieved by creating virtual serial ports, which are same copies of real ones. Each application will think that it is working with serial port in exclusive mode.
See also: serial splitter, port serial slitter, serial split, virtual serial port, virtual com port, null-modem communication, virtual serial driver
Eltima Serial Port Monitor 1.2
Serial Port Monitor is a system utility for exploring the way OS works and monitoring how applications use ports. It can effectively be used for monitoring serial data exchange between serial devices and any Windows application, debugging computer connection with peripheral devices using COM port, for solving problems with serial (RS232/422/485) data communication control networks and devices, for software and hardware testing etc.
See also: advanced RS232/422/485 port monitoring, Serial port monitor, com port monitor, windows serial port monitor
NCD Command Tool for dos 1.0
The NCD.EXE allows you to control NCD products directly from a command line interface in DOS. NCD.EXE does NOT require 3rd party tools or components, as it speaks directly to DOS. With NCD.EXE, you may test and control an NCD device directly without programming. It can also be used in a batch file to do complex jobs or called in your own program. NCD.EXE is a free distribution for use ONLY with NCD products.
See also: Industrial automation, Relay driver, Relay controller, Anolog, motor, servo, motion, digital, switcher, video, E3C, serial, port, com, driver, device, dos, control, RS232, Relay, Home automation, light dimmer
NCD Device Development Lib 1.0
NCD Devices Development Lib supply powerful ActiveX for all NCD devices.
NCD relay controllers allow computer controlled switching from the RS232 serial port of a microcontroller or computer.
NCD video switchers allow computer controlled multiplexing of audio or vide signals from the RS232 serial port of your computer.
See also: light dimmer, Relay, RS232, control, controller, device, driver, com, port, serial, E3C, video, switcher, digital, motion, servo, motor, Anolog, Relay controller, Home automation, Relay driver, Industrial automation, NCD devices, NCD device
Virtual Serial Port ActiveX 3.5
Virtual Serial Port ActiveX allows your application to create additional virtual serial port in system and fully control it. Created virtual port looks absolutely like a real one for Windows applications. You can view parameters information of a virtual port, set by other application, view and control from your application data sent to virtual port by other applications and respond to them by sending your own serial data to virtual COM port.
See also: virtual com port, serial port emulation, serial port component, virtual serial port, virtual serial port activex control
Advanced COM Port Redirector 4.0
Advanced COM Port Redirector is a professional Windows application that allows you to redirect all data sent from one serial port to any other serial port no matter whether first port is virtual or real one. Second port, created by this program, is an absolute copy of the first communication port, except its name, and is located on the same computer. COM Port Redirector is helpful when some conventional serial port device is not easily modified.
See also: rs232 redirector, redirect data streams, Advanced COM Port Redirector, create virtual serial ports, data stream redirection
Virtual Serial Ports Driver XP 4.0
Using Virtual Serial Ports Driver XP you can create any number of virtual serial COM ports in your system which will be virtually connected to each other via virtual null-modem cable. For other Windows applications, virtual serial port pair will be seen exactly as two real serial ports connected via null-modem cable. You can transfer files, exchange data or do whatever you want as they were real serial ports.
See also: virtual port driver XP, VSPD XP, virtual serial ports driver, serial port driver, virtual com port, virtual serial port, serial port emulator, serial port connection
GateWall 3.1
GateWall proxy server is an Internet-management tool designed to connect local network users to the Internet. The application provides a centralized control over Internet connections, bandwidth, time online; automates daily routines such as calculation of consumed traffic, client reporting and billing. Filtering of Internet content allows blocking access to specific websites and controlling employee-surfing habits. FREE 30-Day trial is available.
See also: network gateway, connection sharing, gatewall, modem sharer, modem sharing, internet access sharing, proxy server, internet sharing, internet connection sharing, web proxy, internet billing, nat, ics, port mapping, traffic calculation.
Terminal RS-232C 1.5
The program is used for debugging microprocessor systems or hardware-program complexes through interface RS-232C. The Program allows not only to test the instrument, but also emulate the behaviour of the instrument through interface RS-232C. The Program works at any PC, which uses MS Windows 95/98/NT4/2000/XP operating systems
See also: terminal, interface, rs232, rs422, rs485, com, port
Virtual Serial Port Kit 4.8.5
Virtual Serial Port Kit creates pairs of virtual serial ports in your system which are virtually connected to each other. Physical null modem cables are not required. You can connect any number of virtual port pairs. Virtual serial port pairs will look and work exactly like real hardware serial ports connected via null modem cables.Virtual Serial Port Kit is designed for software developer to speed up development process during software debugging
See also: virtual serial port, virtual serial port driver, debugging, data-logging, virtual com port, serial port, com port
UserGate proxy server 4.2
UserGate is a gateway solution providing extremely secure Internet connection sharing that now ships embedded with Panda Software and Kaspersky Antivirus to provide antivirus scanning. UserGate is easily managed, does not require special skills and can be set up in minutes. UserGate has many features to optimize Internet traffic: web resource caching, web-filtering, ad banner blocking, and optional antivirus protection.
See also: proxy, proxy server, internet connection sharing, antivirus protection, antispyware protection, firewall software, FTP, VPN, port mapping, caching, content filtering, remote administration, Panda Antivirus, Kaspersky Antivirus, dual antivirus scan
Serial Com Port Monitor 4.0
Serial Com Port Monitor is a professional application for RS232/422/485 COM ports monitoring. It monitors, displays, logs and analyzes all serial port activity in Windows OS. This powerful system utility was developed for exploring the way OS works, monitoring how applications use ports, tracking down problems in system or application configurations and processes, implementing, debugging and reverse-engineering serial protocols.
See also: Serial port monitor, Serial com port analyzer, Port monitor software, Rs232 analyzer, Monitor com port, Advanced serial port monitor, Monitor serial port, Rs232 port, Serial port monitoring, Windows port monitor, Com port monitor, Serial port controller, Serial port logger
Eltima Serial Splitter 3.5
Eltima Serial Splitter was designed to create several virtual copies of a COM-port and to organize complex bundles of COM-ports. Eltima Serial Splitter offers 3 types of port splitting options (one-to-many ports, many-to-one, many-to-many), where serial ports (physical or virtual ones or both kinds at once) are used to form any side of connection. Each virtual port is connected to the real port and has its unique name in the system.
See also: Serial port Splitter, Serial Splitter, Serial Port Splitting Tools, Serial Split, Split Com Port, Share Serial Port, Virtual Serial Port, Virtual COM Port, Virtual Serial Driver, Null-modem communication
Relay Timer 1.0
Relay Timer is a powerful tool for NCD ProXR relay controller boards. It supports up to 16 relay boards. Each board has 16 relays. Each relay can be programmed separately and turned on/off manually. The status of all relays can be shown. It can control the relays with very precise timer, while consuming the processor's resource at very low level. It can detect all existed COM Port automatically.
See also: relay timer, relay controller boards, NCD, ProXR, COM port, rs232 utility, serial port, USB, Zigbee, Wireless
PTZ Controller 2.9.583
PTZ Controller is an application to control Pan Tilt Zoom High Speed Dome. It is a virtual keyboard for PTZ camera. It can control the PTZ camera through RS232 port directly, or through RS485/USB port with a converter. It supports multiple standard protocols. User-defined and keyboard shortcut functions make it more powerful than traditional PTZ keyboard hardware. It's also a good debug tool for PTZ camera's test and install.
See also: PTZ Controller, PTZ Camera, PTZ keyboard, PTZ, pelco D, pelco P, Sony, RS232, RS485, com port, serial port, CCTV, camera
Comm Operator 22.214.171.1244
It is a professional tool for serial port, TCP/IP, UDP, HTTP communication application?s design, development, debug and test. It can send and receive data at very high speed. Data can be viewed in text, hex and decimal format. It is also able to create complex structure data, like ZigBee/XBee API dataframework or GIS Garmin data package. Data can be sent automatically with flexible auto sending rules. Perl, Python and Ruby script are supported.
See also: serial port, COM port, network, debug, communication, rs232, TCP/IP, UDP, HTTP, auto send


text:
Report Raises Alarms About Sacramento Levees
A new report from the Army Corps of Engineers and the Federal Emergency Management Agency says there's a 60 percent chance of a levee breach in Sacramento's fastest-growing area, effectively halting development there. Sacramento already ranks at the top of the country's most flood-prone cities.
Tamara Keith of member station KQED reports.
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Originally published August 5, 2013 at 1:23 PM | Page modified August 6, 2013 at 1:41 AM
2 boys killed after python escapes store in Canada
A python escaped from its enclosure at a pet store in Canada, slithered through a ventilation system into an upstairs apartment and killed two young boys as they slept, police said Monday.
The Associated Press
A python escaped from its enclosure at a pet store in Canada, slithered through a ventilation system into an upstairs apartment and killed two young boys as they slept, police said Monday.
The boys, ages five and seven, were visiting the apartment of a friend above Reptile Ocean Inc., an exotic pet store in Campbellton, New Brunswick, said Royal Canadian Mounted Police Const. Julie Rogers-Marsh.
Police arrived at the apartment around 6:30 a.m. and found the two boys dead. A friend of the boys was sleeping in another room and was unharmed, Rogers-Marsh said. She said the owner of the pet store lived in the apartment.
Rogers-Marsh said the snake escaped from its enclosure sometime during the night and was believed to have made its way into the apartment through the ventilation system.
"It's believed the two boys were strangled by the snake," she said.
The snake was captured and is in the possession of police, Rogers-Marsh said. Calls to the pet store were not returned Monday.
Rogers-Marsh said autopsies were to be performed on the two victims on Tuesday. She couldn't confirm whether the two boys were related.
"It's very, very unusual and very tragic and difficult for everyone involved," Rogers-Marsh said.
The town's deputy mayor, Ian Comeau, said Reptile Ocean was licensed to operate and "everything was according to our bylaws, to the provincial guidelines."
The deaths of the boys have been "a shock ... it is unbelievable," Comeau said Monday evening. Comeau said he saw alligators, crocodiles and snakes when he toured the shop with the fire department about two years ago.
Associated Press Writer Rob Gillies in Toronto contributed to this report.
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Additinal Credits
La traite de personnes au Qu�bec from Joan Sullivan on Vimeo.
Photographer Statement
I am a documentary photographer, writer and emerging filmmaker who also earned a Masters degree from the Harvard School of Public Health (1989). I explore the inter-relationships between public health, poverty and the environment. During 15 years of HIV prevention assignments in both francophone and anglophone Africa, (post-conflict Rwanda, Sierra Leone, and Côte d'Ivoire; Niger and Botswana) with a variety of international organizations (CARE USA, UNAIDS, ACHAP), I also worked as a stringer photographer for Reuters (South Africa bureau) and a contract photographer with the Bill & Melinda Gates Foundation (South Africa and Uganda).
Since returning to Canada in 2008, I have added climate change to my photographic record. I am currently the only female photographer in Canada documenting the rapid expansion of renewable energy. In 2011, I co-founded a digital production company – Image VERDE – dedicated to documenting renewable energy in the context of climate change. I am currently working on a documentary film about the impact of climate change on coastal communities along the Saint Lawrence River.
To license this work for editorial, creative, or other uses, click on the OZMO logo above.
This will take you to the Ozmo website where you can review the cost and license for the photographs in this exhibit.
You will need to create an account with both Amazon payments and with the Ozmo website as described on the Ozmo website.
Affiliated NGO
All photos submitted with this exhibit were taken while on assignment with the Bill & Melinda Gates Foundation.
Contact Photographer
Joan Sullivan
Joan Sullivan Photography
670, Rang 4 Ouest
Saint-Valerien-de-Rimouski, Quebec G0L4E0 Canada
1-418-318-3688 mobile
Photographer: Joan Sullivan
Organization: Joan Sullivan Photography
Exhibit Title: Malaria control efforts in Uganda
Location: Uganda
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Rick's crew comes up with a plan to save Beth.
"I'm Cupid, stupid, and I'm going to kill everyone Arrow doesn't like. That'll make him love me, right? RIGHT?!"
Spinning out of Spider-Verse, Jessica Drew is on a mission with some other Spider-Folk. Even if you've been reading the other Spider-Verse titles, there will be some confusion.
Concept »
Ninjas appears in 557 issues.
The Ashi no Himitsu is a book detailing the secrets and history of the Foot Clan.
A long staff used in many martial arts, Bo Staffs are seen as a non-lethal alternative to swords.
Katana is a Japanese sword which has been used in old samurai battles. The katana was also used by the Yakuza gang.
Kunai are 'throwing knives' used by many ninja in the Naruto world. They are often used in conjunction with their jutsu.
The "upgraded" form of Sharingan. This version is significantly stronger than the regular Sharingan, and can only be only be achieved by the intense emotions of having lost a family member or best friend.
A Japanese blade on a staff often associated with women due to being used by the wives of Samurai, the Naginata is a dangerous weapon.
The Ninja Forehead Protector is worn by all official ninjas of a specific village. It is a cloth headband with an engraved metal plate bolted on. The engraving marks the region of the ninja.
A traditional Okinawan weapon consisting of two sticks chained together, the Nunchaku or nunchuks are a complicated weapon to wield.
A three pronged dagger and an Okinawan weapon from Japan used to lock and disarm opponents while either beating an opponent into submission with the pommel or stabbing with the point.
Shredder's armor is consisted of blade-covered metal plaques on his shoulders, forearms, hands and shins.
The Shredder's helmet is an ancient relic and symbol of the Foot Clan.
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Brand NEW today by 2CurlyHeadedMonsters Designers a beautiful Vintage collection in soothing tones of blues and pinks called Vanilla Pastel!! This collection includes 8 beautifully patterned papers and 30 accents!
You can purchase this kit in her SHOPPE. The 30% OFF is for a LIMITED TIME ONLY!!!
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And some CT Inspiration
Hi from Tricia of Seoul 2 Soul Scraps!
Here in the U.S., Father's Day is celebrated this Sunday, June 15. In honor of this special day, I have marked My Main Man down to just $2.00!
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From the Top was designed to feed my paper addiction. Have fun clipping lots of different papers or adding ribbons to fill the the page from the top down.
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My Story, Volume 1 was the inspiration for the entire My Story line–templates that make pocket page and Life project layouts a bit out of the box. A page frame is included to add depth and clean lines.
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Hello, Sarah here. It is a sunny day in germany.that makes me happy.
Hey Mister Collab by JB Studio and Juno Designs
A wonderful collab, it is perfect for all your boy photos. I like the grunchy papers, the brushes, the alphas and the colours so much.
So here my pages. You can see my son. he likes climbing in the trees.
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Thanks for looking. i wish you a wonderful weekend.
I've just released a new collection in my store and today only you can grab the Bundle for just $5!!
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Italy….a region of Italy known for love, good food, wine and more…
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Tuscany is on Sale till 05/30.
Some CT Inspiration
A special Birthday Gift to YOU!
I am turning 60 this month so all my store is 60% off
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Saturday Shorts: Alienware M14x, EyePet, SWTOR, SSFIV 3D, Angry Birds PSN, sales
Lovely, small, bite-sized news for the win. Click onward adventurers.1
Eyepet headlines
Sony France says EyePet 2 is currently in the works
Sony France's George Fornay has announced in an interview that EyePet 2 is currently in development. Apparently, the little monkey thing was popular enough over in Europe to warrant a sequel.8
EyePet: "Intention is to build something bigger than a single game"
EyePet dev lead Nic Doucet's told VG247 that EyePet is merely the "beginning" of a franchise, and that more games based on the IP will be released in the future. "For us, it's the beginning," said the developer, speaking in a phone interview last week. "We're creating a franchise. We're hoping to really rally a […]6
EyePet misses 2009 in the US
The American version of EyePet won't release this year, SCEA's confirmed. "The North American territory has decided to take additional time to focus on the EyePet product and can confirm it will not be available this holiday," the publisher told Gamespot in a statement. "EyePet is an innovative and exciting new IP to the PS3 […]3
EyePet - 15-minute play movie and photos of final version
A final version of PlayStation Eye game EyePet turned up this morning in an amazing expanding pop-up box thing containing the camera, final code and the little paw pad used to control objects on the screen. I filmed myself playing it with my daughter, with support from my twin sons, for about 15 minutes – […]56
New Eight Days screens and videos surface
Remember Eight Days? You know, the game that Sony showed at E3 2006, with a pre-rendered trailer that tried to fool us as a real-time gameplay trailer? Yeah, that Eight Days. It got canned, don't you know. But now, all we have left is these leaked screens and videos which have come out. The screens […]3
EyePet landing in stores November 17
Sony has announced that EyePet will land in the US November 17 for $39.99 or bundled with PlayStation Eye for $59.99. Be prepared for your "real" pets to freak out. Apparently, the little guy is customizable, "letting you modify fur length, color and pattern, as well as the ability to outfit your pet with more […]7
New PS3 boxart emerges - we wonder why?
Run for the hills, children. It's all about to kick off. DotDash has put online what appears to be a brand new look to the PS3 boxart: kicking off with Eyepet. Before, you'd have the Spider-Man logo with the PS logo going down the left side of the cover. But with this, it seems to […]25
Sony confirms US holiday release for EyePet
Sony has confirmed that PlayStation Eye game, EyePet, will land in the US just in time for the holiday shopping extravaganza. The game will release as a stand-alone title as well as via a bundle with the camera. No exact date was forthcoming, but Cologne is right around the corner, so hopefully things will be […]14
New EyePet screens are playful, family-friendly
EyePet was a Sony conference no-show at E3 this week, but SCEE's put out some new shots just for the hell of it. Expect more from Cologne. After the break.4
EyePet - First official shots released
SCEE's released the first shots of EyePet, the next-gen EyeToy game it announced at Games Convention last month. The title was shown off during Sony's press conference, and looked very cool, truth be told. A family was seen playing with a customisable monkey, as you can see in the screens. After the break.16
Eyepet Latest
Saturday Shorts: Alienware M14x, EyePet, SWTOR, SSFIV 3D, Angry Birds PSN, sales
Sony France says EyePet 2 is currently in the works
EyePet: "Intention is to build something bigger than a single game"
EyePet misses 2009 in the US
EyePet – 15-minute play movie and photos of final version
New Eight Days screens and videos surface
EyePet landing in stores November 17
New PS3 boxart emerges – we wonder why?
Sony confirms US holiday release for EyePet
New EyePet screens are playful, family-friendly
EyePet – First official shots released


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There are several there, including Melville Lee Colborn, Helen (Price) Colborn, Harry Blackstone Colborn, Juliet (Colborn) Amos, Lara (Colborn) Walker, Catherine Colborn, Melanie (Colborn) Reiser, Sydney (Colborn) Siegrist, Christian Colborn (2 of them!). Anybody know of relatives, distant or otherwise? BTW... the name is English, not Scottish or German.
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The Constellation's registry number
View Single Post
February 24 2013, 10:31 PM
Mr. Laser Beam
Fleet Admiral
Location: The visitor's bullpen
Re: The Constellation's registry number
BillJ wrote:
But even then, the Defiant having a dedication plaque in the same spot as Enterprise is a retcon as it didn't have a plaque in
The Tholian Web
The only reason that last bit is true is because of budget. They didn't have the time or money to do that in TOS, but it can be assumed to be true nonetheless.
's "Aegis/Ticonderoga" reference does technically make sense, in that a ship can have two classes: one is the actual class name (here,
) whereas the other is actually the ship's TYPE (Starship). So I'm prepared to call it even, really.
It is by caffeine alone I set my mind in motion. It is by the beans of Java that thoughts acquire speed, the hands acquire shakes, the shakes become a warning. It is by caffeine alone I set my mind in motion.
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text: ESPN Feed: brittney griner http://assets.espn.go.com/i/tvlistings/tv_espn_original.gif ESPN en-us 10 ESPN Inc. http://espn.go.com/ Copyright 2010 ESPN Inc. Phoenix Mercury center Brittney Griner discusses her plans to marry fellow WNBA player Glory Johnson, attaining gold at the World Championships in Turkey and winning the WNBA Finals.]]> October 22, 2014 10:04:21 PDT Brittney Griner, Kate Fagan, Nefertiti Walker, Lindsay Kagawa Colas talk about breaking down barriers in women's sports.]]> October 09, 2014 19:15:40 PDT Director Melissa Johnson talks about her favorite sequence in the Nine for IX short "Brittney Griner: Lifesize" and why it was the most challenging to capture.]]> July 24, 2014 05:56:00 PDT Brittney Griner talks about her second season in the WNBA and with whom she is looking forward to playing in the All-Star Game.]]> July 18, 2014 22:01:41 PDT Kids competing in the 2014 Scripps National Spelling Bee try their best at spelling a few tricky names in the athletic world.]]> May 29, 2014 05:22:39 PDT Phoenix Mercury star Brittney Griner discusses her experience playing overseas in China.]]> April 16, 2014 06:31:28 PDT Second overall pick Odyssey Sims tells espnW's LaChina Robinson that she's looking forward to taking on her former teammate, Brittney Griner.]]> April 14, 2014 17:51:41 PDT Kate Fagan sits down with WNBA star Brittney Griner to discuss her new book, "In My Skin: My Life On and Off the Basketball Court."]]> April 08, 2014 07:51:36 PDT


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This is Amelia Rayno's third season on the Gophers men's basketball beat. She learned college basketball in North Carolina (Go Tar Heels!), where fanhood is not an option. In 2010, she joined the Star Tribune after graduating from Boston's Emerson College, which sadly had no exciting D-I college hoops to latch onto. Amelia has also worked on the sports desk at the Boston Globe and interned at the Detroit News.Follow Rayno on Twitter @AmeliaRayno
Andre Hollins update: Gophers coach Richard Pitino confirmed to the Star Tribune on Thursday that Hollins' X-rays on a left ankle injury came back negative. The junior guard has been diagnosed with a "severe ankle sprain," which was confirmed by an MRI. However, Pitino said the Hollins will be evaluated daily, and has not ruled out that he will play on Sunday at Nebraska. Hollins was injured 14 seconds into Wednesday's game vs. Wisconsin, when he landed on a defender's foot after coming down from a jump shot. The guard was fitted for a boot and getting around on crutches in the locker room after the game.
At the beginning of the season, if we had been told that Andre Hollins would go down with an ankle injury just a few seconds into a game against No. 9 Wisconsin, we all probably would have chalked that one up to a loss.
What could they do? Their best player and offensive leader was down.
But the Gophers are so much more than that now.
At this point in the season, Hollins might not even be the most damaging loss in a game like this. That's not to say that the junior guard isn't a major part of what Minnesota does -- he was leading the team with 16.2 points a game coming into last night, after all -- but simply that the Gophers no longer rely on him to run the point (imagine if DeAndre Mathieu went down? Yikes.) and that they've found so much offensive balance around him in the backcourt.
That kind of variance instills a new confidence in both the players and those watching them.
When a guy like Hollins hits the floor, they can look around at each other and think "Hey, we're OK."
The Gophers have Austin Hollins, who when he's being aggressive -- and he certainly was at the end of the game -- can be a major spark. They have DeAndre Mathieu, who might be one of the most talented little guys in the game when it comes to scoring on the drive. They have Malik Smith, who looked as sharp as he has all year against Wisconsin, playing very complete offense -- taking the ball to the hoop as well as creating opportunities for his teammates. We've seen him grow a ton, already, since the beginning of the season -- a statement that I guess holds for all of those guys.
None of that is to mention the newly invigorated frontcourt, the surprise of the season, with Mo Walker stealing the show last night with his career 18-point, nine-rebound performance and incredible lift in the first half. That, of course, is the kind of offensive equilibrium Minnesota needs in order to give their guards the space to operate effectively.
No, the Gophers are not solely The Andre Hollins Team any longer.
Still, such a dominant offensive performance (58.9 percent shooting from the field; 81 points on 58 possessions) with the star guard contributing only a few seconds is extremely meaningful for Minnesota. While the Gophers don't rely on Hollins in the same way as they thought they might, he's had huge offensive games in nearly every big win Minnesota has had, with the exception of the Ohio State victory. Take a look:
at Richmond: 26 points
vs. Florida State: 21 points
vs. Purdue: 17 points
vs. Ohio State: 10 points
At Michigan State, when the Gophers brought the Spartans to overtime at Breslin Center, Hollins had 24. At Iowa, when the Gophers authored a double-digit lead in the second half, Hollins had 20.
Then the Gophers were without him for the new "biggest game of the season" to that point, and, well, they did just fine. They thrived, in fact.
That wasn't the case a year ago, when the Gophers lost seven of the nine league games that Hollins scored 13 points or fewer (and the two that they won with him scoring fewer than 13 were against Penn State and Northwestern).
With Hollins' status going forward uncertain, the new trend is a positive sign for the Gophers.
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