Title of Invention: POWDER DISPERSION APPARATUS, METHOD OF MAKING AND USING THE APPARATUS, AND COMPONENTS THAT CAN BE USED ON THE APPARATUS AND OTHER DEVICES Abstract: Methods and apparatuses for the pulmonary delivery of a composition, such as methods and apparatuses for dispersing dry powder medicaments for inhalation by a patient. Elements or aspects of the apparatuses, including receptacle puncturing, mechanisms, deoccluding devices, receptacle impacting devices, and receptacle lock devices or systems. Detailed Description: CROSS-REFERENCE TO RELATED APPLICATIONS The present application claims priority to and expressly incorporates by reference herein the entire disclosures of U.S. Application No. 60/854,601, filed Oct. 25, 2006, and U.S. Application No. 60/906,977, filed Mar. 13, 2007. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates generally to methods and apparatuses for the pulmonary delivery of a composition. In one aspect, the invention relates to methods and apparatuses for dispersing dry powder medicaments for inhalation by a patient. The invention is also directed to elements or aspects of the apparatuses as noted; such aspects include receptacle puncturing mechanisms, deocculsion devices, receptacle impacting devices, and receptacle lock devices or systems. Such elements or aspects can be used in apparatuses, including for example, apparatuses for pulmonary delivery of a composition. 2. Discussion of Background Information Effective delivery to a patient is an important aspect of any successful drug therapy. Various routes of delivery exist, and each has its own advantages and disadvantages. Oral drug delivery of pills, capsules, elixirs, and the like, is perhaps the most convenient method, but many drugs are degraded in the digestive tract before they can be absorbed. Such degradation can be particularly problematic with protein drugs which can be rapidly degraded by proteolytic enzymes in the digestive tract. Subcutaneous injection is frequently an effective route for systemic drug delivery, including the delivery of proteins, but generally suffers from low patient acceptance. Since injection of drugs, such as insulin, one or more times a day can be a source of poor patient compliance, a variety of alternative routes of administration have also been developed, including transdermal, intranasal, intrarectal, intravaginal, and pulmonary delivery. Of particular interest to the present invention, pulmonary drug delivery involves inhalation of a drug, such as in a dispersion or aerosol, by the patient so that active drug can reach the distal (alveolar) regions of the lung. It has been found that certain drugs are readily absorbed through the alveolar region directly into blood circulation. Pulmonary delivery is particularly promising for the delivery of proteins and polypeptides which are difficult to deliver by other routes of administration. Such pulmonary delivery is effective both for systemic delivery and for localized delivery to treat diseases of the lungs. Pulmonary drug delivery (including both systemic and local) can itself be achieved by different approaches, including liquid nebulizers, pressurized metered dose inhalers (pMDI's), and dry powder dispersion devices. Dry powder dispersion devices are particularly promising for delivering protein and polypeptide drugs which may be readily formulated as dry powders. Many otherwise labile proteins and polypeptides may be stably stored as lyophilized or spray-dried powders by themselves or in combination with suitable powder carriers. The ability to deliver proteins and polypeptides as dry powders, however, can be difficult in certain respects. The dosage of some protein and polypeptide drugs is often important so dry powder delivery systems are ideally able to accurately, precisely, repeatedly, deliver the intended amount of drug. Moreover, many proteins and polypeptides are quite expensive, typically being many times more costly than conventional drugs on a per-dose basis. Thus, the ability to efficiently deliver the dry powders to the target region of the lung with a minimal loss of drug is important. It is further desirable that powder agglomerates present in the dry powder be sufficiently broken up prior to inhalation by the patient to increase the likelihood of effective systemic absorption or other pulmonary delivery. A particularly promising approach for the pulmonary delivery of dry powder drugs utilizes a hand-held device with a pump or other source of pressurized gas. A selected amount of the pressurized gas is abruptly released through a powder dispersion device, such as a Venturi tube, and the dispersed powder made available for patient inhalation. Another typical characteristic for hand-held and other powder delivery devices is high dosage concentration. It is important that the concentration of drug in the bolus of gas be relatively high to reduce the number of breaths and/or volume of each breath required to achieve a total dosage. The ability to achieve both adequate dispersion and small dispersed volumes is a significant technical challenge. Dry powder dispersion devices for medicaments are described in a number of patent documents. For example, U.S. Pat. No. 3,921,637 describes a manual pump with needles for piercing through a single capsule of powdered medicine. The use of multiple receptacle disks or strips of medication is described, for example, in EP 467172 (in which a reciprocatable piercing mechanism is used to pierce through opposed surfaces of a blister pack); WO91/02558; WO93/09832; WO94/08522; U.S. Pat. Nos. 4,627,432; 4,811,731; 5,035,237; 5,048,514; 4,446,862; and 3,425,600. Other patents, which show puncturing of single medication capsules, include U.S. Pat. Nos. 4,338,931; 3,991,761; 4,249,526; 4,069,819; 4,995,385; 4,889,114; and 4,884,565; and EP 469814. WO90/07351 describes a hand-held pump device with a loose powder reservoir. Other devices include those described in U.S. Pat. Nos. 6,109,261 and 6,606,992; and U.S. Published App. No. 2004/0000309. The entire disclosure of each of these documents is hereby expressly incorporated by reference. U.S. Pat. No. 6,257,233, for example, describes various apparatuses and methods for aerosolizing a powdered medicament. In one exemplary embodiment, an apparatus includes a pressurization cylinder and a piston which is slidable within the cylinder to pressurize a gas. A handle is coupled to the piston and is movable between an extended position and a home position to pressurize the gas. An aerosolizing mechanism is included and is configured to aerosolize a powdered medicament that is held within a receptacle with pressurized gas from the cylinder. A carriage assembly is included to receive the receptacle and to couple the receptacle to the aerosolizing mechanism. A first and a second interlock are operably engageable with the carriage assembly to prevent coupling of the receptacle with the aerosolization mechanism. The first interlock is released to allow movement of the carriage upon movement of the handle to the extended position. The second interlock remains engaged if the receptacle is only partially inserted into the carriage assembly. With the release of Exubera™ inhaleable insulin, which utilizes a device similar to that described in U.S. Pat. No. 6,257,233, an alternative is available to injections for the first time. Devices are also available which utilize a puncturing system wherein a blade mechanism descends into a foil, cuts openings in the foil, and then stays in place during evacuation. Such a device is disclosed in U.S. Pat. No. 6,668,827, the disclosure of which is hereby expressly incorporated by reference in its entirety. The cutters described in that patent create plural concentric arc-shaped cut openings in the blister foil and simultaneously rolling up a small strip of foil along the leading edge of the cutter tooth. They are designed to descend into the blister, rotate, and remain in the blister during blister evacuation. They are then reversed in rotation and retracted from the blister. Other devices that use drug packages that are sealed with foil include the Diskhaler® and the Diskus®. The Diskhaler® drives a long plastic tooth through the entire drug package, retracting it before inhalation. This creates an additional step to retract the tooth, ends up creating a large and inconsistent hole through the drug package, and produces variable dose due to airflow variation and powder losses through the large hole. The Diskus® peels away the thin lidstock, revealing the entire tub containing the drug powder. The act of peeling back the lidstock creates vibrations in the drug package, which create a risk of vibrating powder out of the drug package and reducing the available dose. The principle of puncturing the foil of a blister pack using a blunt member and then forming arc-shaped openings using a plowing effect is disclosed in U.S. Pat. No. 5,833,071, the disclosure of which is hereby expressly incorporated by reference in its entirety. Commercially available passive dry powder inhalers (DPIs) often utilize large carrier particles, typically lactose particles, intermixed with fine powder medicament in order to facilitate aerosolization. Such lactose blends produce impaction of the large lactose particles in the user's upper respiratory tract (URT) and greatly limit the practical size of the deliverable dose. Further limitations of commercially available passive DPIs are their variability of emitted dose (ED) and fine particle dose (FPD), which are both highly dependent upon user's inhalation flow rate (Q) and flow increase rate (FIR) at the beginning of the inhalation maneuver. There remains, however, a need for improved inhalers. For example, there is a need for consistent pulmonary delivery of a dry powder medicament. There is also a need for efficient aerosolization of dry powder medicament. Still another need is to control flow rate through inhalers in a manner that facilitates both aerosolization of dry powder medicament and consistent lung deposition. Yet another need is for improved passive dry powder inhaler (DPI) device having the ability to produce high emitted dose (ED) and fine particle dose (FPD) consistently across a highly variable user population. It would therefore be desirable to provide methods and systems for the dispersion of dry powder protein, polypeptide, and other drugs. Such methods and systems may have applications other than for use in an inhaler. SUMMARY OF THE INVENTION Accordingly, the present invention provides a variety of mechanisms and methods, which may be used in pulmonary delivery of substances, such as drugs, and in other applications. Other features and advantages of the present invention will be set forth in the description of invention that follows, and in part will be apparent from the description or may be learned by practice of the invention. The invention will be realized and attained by the mechanisms and methods particularly pointed out in the written description and claims hereof. Thus, aspects of the invention relate generally to methods and apparatuses for the pulmonary delivery of a substance such as drugs. In embodiments, the present invention relates to methods and apparatuses for dispersing dry powder medicaments for inhalation by a patient. Embodiments also include elements such as receptacle puncturing mechanisms, deoccluding elements, receptacle impacting elements, and receptacle lock elements. Such features or elements can be used alone or in combination with one or more other features or elements. Such features and elements can be used in apparatuses for the pulmonary delivery of drugs, or in any other apparatus, including those not intended for delivery of drugs. In one aspect, the present invention involves an apparatus comprising a support for supporting a receptacle, an outlet, and a feed tube communicating with the outlet. The apparatus also includes a mechanism configured to create at least one opening in a wall of the receptacle, the mechanism comprising a blade having a leading edge, wherein the leading edge comprises an elliptical leading edge having a rho value from 0.1 to 0.5. In another aspect, the present invention involves an apparatus comprising a support for supporting a receptacle, an outlet, and a feed tube communicating with the outlet. The apparatus also includes a deoccluding device permanently arranged within the feed tube. In still another aspect, the present invention involves an apparatus comprising a support for supporting a receptacle, an outlet, and a feed tube communicating with the outlet. The apparatus also includes a receptacle impacting device that has a plurality of stable positions such that the receptacle impacting device is automatically cocking. In yet another aspect, the present invention involves an apparatus comprising a support for supporting a receptacle having an outline comprising a first pair of sides and a second pair of sides that are shorter than the first pair of sides, the first pair of sides comprising notches. The apparatus also includes an outlet and a feed tube communicating with the outlet. Further, the apparatus includes a receptacle lock system that interacts with the notches of the receptacle. In another aspect, the present invention involves a method of opening a receptacle using an apparatus. The method includes inserting a receptacle containing a powder into the apparatus. The method further includes creating, with a mechanism configured to create at least one opening in a wall of the receptacle, a puncture in the wall and then a tear in the wall, wherein the tearing bends torn edges of the wall inwardly into the receptacle. In a further aspect, the present invention involves using an apparatus. The method includes inserting a receptacle containing a powder into the apparatus, puncturing the receptacle, and deoccluding a feed tube of the apparatus. In yet another aspect, the present invention involves a method of using an apparatus. The method includes inserting a receptacle containing a powder into the apparatus and impacting the receptacle with a receptacle impacting device. In another aspect, the present invention involves a mechanism configured to create at least one opening in a wall of a receptacle. The mechanism includes a support and at least one protruding member arranged on the support. The at least one protruding member comprising a blade having a leading edge, wherein the leading edge comprises an elliptical leading edge having a rho value from 0.1 to 0.5. In a further aspect, the present invention involves a deoccluding device adapted to remove a powder residue from an inner surface of a tube. The device includes a first portion structured and arranged to deocclude an inner surface of a tube by rotating and descending into the tube, wherein the first portion does not contact the inner surface of the tube. In still another aspect, the present invention involves a receptacle impacting device. The receptacle impacting device includes a support portion and a plurality of arms projecting from the support portion. Each of the plurality of arms is structured and arranged to impact a receptacle. In yet another aspect, the present invention includes a receptacle lock system structured and arranged to receive a receptacle of predetermined configuration. The system includes a device that moves from a locked position to an unlocked position based on a position of the receptacle, wherein the receptacle comprises an outline comprising a first pair of sides and a second pair of sides that are shorter than the first pair of sides, the first pair of sides comprising notches, and wherein the receptacle lock system interacts with the notches of the receptacle. In another aspect, the present invention involves a kit including (1) an apparatus; and (2) at least one powder-containing receptacle. The apparatus comprises a support for supporting a receptacle, an outlet, and a feed tube communicating with the outlet. The apparatus also includes at least one of: a mechanism configured to create at least one opening in a wall of a receptacle, the mechanism comprising a blade having a leading edge, wherein the leading edge comprises an elliptical leading edge having a rho value from 0.1 to 0.5; a deoccluding device permanently arranged within the feed tube; a receptacle impacting device that has a plurality of stable positions such that the receptacle impacting device is automatically cocking; and a receptacle lock system that interacts with notches of the receptacle wherein the receptacle has an outline comprising a first pair of sides and a second pair of sides that are shorter than the first pair of sides, the first pair of sides comprising the notches; and In still another aspect, the present invention includes a combination comprising (1) an apparatus; and (2) a powder-containing receptacle inserted in the apparatus. The apparatus comprises a support for supporting a receptacle, an outlet, a feed tube communicating with the outlet, and at least one of: i) a mechanism configured to create at least one opening in a wall of a receptacle, the mechanism comprising a blade having a leading edge, wherein the leading edge comprises an elliptical leading edge having a rho value from 0.1 to 0.5; ii) a deoccluding device permanently arranged within the feed tube; iii) a receptacle impacting device that has a plurality of stable positions such that the receptacle impacting device is automatically cocking; and iv) a receptacle lock system that interacts with notches of the receptacle wherein the receptacle has an outline comprising a first pair of sides and a second pair of sides that are shorter than the first pair of sides, the first pair of sides comprising the notches. In still another aspect, the present invention involves an apparatus comprising an outlet, a feed tube communicating with the outlet, a mechanism configured to create at least one opening in a wall of a receptacle, a deoccluding device arranged within the feed tube, a receptacle impacting device, and a receptacle lock system. In a further aspect, the present invention involves a method of aerosolizing a powder using an apparatus. The method includes inserting a receptacle containing a powder into the apparatus, rotating one portion of a housing relative to another portion of the housing, and inhaling on a mouthpiece of the apparatus. In another aspect, the present invention involves a kit comprising components for assembling an apparatus. The apparatus includes at least an outlet, a feed tube communicating with the outlet, a mechanism configured to create at least one opening in a wall of a receptacle, a deoccluding device arranged within the feed tube, a receptacle impacting device, a receptacle lock system, and written instructions for assembling the components into an apparatus for aerosolizing a powder. In still another aspect, the present invention involves an apparatus comprising a support for supporting a receptacle, an outlet, and an internally flared feed tube communicating with the outlet. The apparatus also includes a mechanism configured to create at least one opening in a wall of the receptacle, the mechanism comprising a blade having a leading edge, wherein the leading edge comprises an elliptical leading edge having a rho value from 0.1 to 0.5. In yet another aspect, the present invention involves an apparatus comprising a support for supporting a receptacle, an outlet, and an internally flared feed tube communicating with the outlet. The apparatus also includes a mechanism configured to create at least one opening in a wall of the receptacle, the mechanism comprising a blade having a leading edge, wherein the leading edge comprises an elliptical leading edge having a rho value from 0.1 to 0.5. In still another aspect, the present invention involves a method of administering a drug-containing powder via inhalation. The method include inserting a powder-containing receptacle into an apparatus for aerosolizing a powder, the apparatus comprising a support for supporting a receptacle, an outlet, a feed tube providing communication between the receptacle and the outlet, and at least one of: i) a mechanism configured to create at least one opening in a wall of the receptacle, the mechanism comprising a blade having a leading edge, wherein the leading edge comprises an elliptical leading edge having a rho value from 0.1 to 0.5; ii) a deoccluding device arranged within the feed tube; iii) a receptacle impacting device; and iv) a receptacle lock system; and producing at least one opening in the powder-containing receptacle; and inhaling on a mouthpiece of the apparatus, whereby powder in the powder-containing receptacle is administered. In still another aspect, the present invention involves an apparatus comprising a support for supporting a receptacle, an outlet, and a feed tube communicating with the outlet. The apparatus also includes a valve positioned between the receptacle and the outlet such that air flow from the receptacle to the outlet passes through the valve. In yet another aspect, the present invention involves a cutter mechanism. The cutter mechanism includes a plastic blade having a leading edge, wherein the leading edge comprises an elliptical leading edge having a rho value from 0.1 to 0.5. In still another aspect, the present invention involves an apparatus including a support for supporting a receptacle, an outlet, and a feed tube communicating with the outlet. The apparatus also includes a puncturing device disposed in the feed tube, wherein the puncturing device is moveable relative to the feed tube to puncture the receptacle. In yet another aspect, the present invention involves a receptacle. The receptacle includes a lower foil laminate comprising a blister for holding powder and an upper foil laminate covering the lower foil laminate, wherein the receptacle comprises a rear portion having two sides perpendicular to a third side, a middle portion comprising notches, and a tapered front portion. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows a front side view of one embodiment of the invention and includes an overall height dimension and an overall width dimension; FIG. 2 shows a front side view of the embodiment of FIG. 1 with the cover removed; FIG. 3 shows a side perspective view of an embodiment of the invention and illustrates how the cover can be removed by lifting it vertically off of the device; FIG. 4 shows another side perspective view of the embodiment of FIG. 3 and illustrates how the receptacle can be inserted into the front side of the device after the cover has been removed. During insertion of the receptacle, the lock system is engaged and the receptacle impacting system is activated; FIG. 5 shows another side perspective view of the embodiment of FIG. 4 and illustrates how the mouth piece or upper portion of the device can be rotated relative to a lower portion of the device after the receptacle has been properly inserted. Rotation of 180 degrees automatically causes puncturing and tearing of both the inlet and outlet openings in the receptacle and deoccluding of the feed tube; FIG. 6 shows another side perspective view of the embodiment of FIG. 5 and illustrates how, after the mouth piece is rotated 180 degrees, the device can be used by the user for inhalation; FIG. 7 shows another side perspective view of the embodiment of FIG. 6 and illustrates how the receptacle can be removed; FIG. 8 shows another side perspective view of the embodiment of FIG. 7 and illustrates how the cover can be placed back onto the device after use; FIG. 9 shows an exploded view of another embodiment of the invention; FIG. 10 shows how the deoccluding device and the cutter mechanism shown in FIG. 9 are assembled together; FIG. 11 shows how the orifice member and the subassembly shown in FIG. 10 are assembled together; FIG. 12 shows how the trigger member and the subassembly shown in FIG. 11 are assembled together; FIG. 13 shows how the retainer member and the subassembly shown in FIG. 12 are assembled together; FIG. 14 shows how the upper bearing member and the lower bearing member shown in FIG. 9 are assembled together; FIG. 15 shows how the subassembly shown in FIG. 13 and the subassembly shown in FIG. 14 are assembled together; FIG. 16 shows how the coil spring and the subassembly shown in FIG. 15 are assembled together; FIG. 17 shows how the mouth piece and the subassembly shown in FIG. 16 are assembled together; FIG. 18 shows how the bottom housing member and the torsion spring shown in FIG. 9 are assembled together; FIG. 19 shows how the receptacle impacting mechanism and the subassembly shown in FIG. 18 are assembled together; FIG. 20 shows how the lock member and the subassembly shown in FIG. 19 are assembled together; FIG. 21 shows how the skirt member and the subassembly shown in FIG. 20 are assembled together; FIG. 22 shows how the body member and the subassembly shown in FIG. 21 are assembled together; FIG. 23 shows how the subassembly shown in FIG. 17 and the subassembly shown in FIG. 22 are assembled together; FIG. 24 shows how the cover member and the subassembly shown in FIG. 23 are assembled together; FIG. 25 shows a cut-away rear-side view of the embodiment shown in FIG. 24 with a receptacle installed therein. For purposes of illustration, the trigger is shown in both the closed position and the open position; FIG. 26 shows a cut-away right-side view of the embodiment shown in FIG. 24 with a receptacle installed therein. For purposes of illustration, the trigger is shown in both the closed position and the open position; FIG. 27 shows a partially cut-away front side perspective view of the embodiment shown in FIG. 24 with a receptacle installed therein. For purposes of illustration, the trigger is shown in both the closed position and the open position; FIG. 28 shows a top view of the cap shown in FIG. 9; FIG. 29 shows a front side view of the cap shown in FIG. 28; FIG. 30 shows a top front perspective view of the cap shown in FIG. 28; FIG. 31 shows a rear bottom perspective view of the cap shown in FIG. 28; FIG. 32 shows a top view of the mouthpiece shown in FIG. 9; FIG. 33 shows a front side view of the mouthpiece shown in FIG. 32; FIG. 34 shows a front side cross-section view of the mouthpiece shown in FIG. 32; FIG. 35 shows a bottom view of the mouthpiece shown in FIG. 32; FIG. 36 shows a right side view of the mouthpiece shown in FIG. 32; FIG. 37 shows a top front perspective view of the mouthpiece shown in FIG. 32; FIG. 38 shows a right side cross-section view of the mouthpiece shown in FIG. 32; FIG. 39 shows a rear bottom perspective view of the mouthpiece shown in FIG. 32; FIG. 40 shows a top view of the retainer shown in FIG. 9; FIG. 41 shows a front side view of the retainer shown in FIG. 40; FIG. 42 shows a right side cross-section view of the retainer shown in FIG. 40; FIG. 43 shows a rear bottom perspective view of the retainer shown in FIG. 40; FIG. 44 shows a top view of the trigger shown in FIG. 9; FIG. 45 shows a front side view of the trigger shown in FIG. 44; FIG. 46 shows a top front perspective view of the trigger shown in FIG. 44; FIG. 47 shows a rear bottom perspective view of the trigger shown in FIG. 44; FIG. 48 shows a front side view of the orifice member shown in FIG. 9; FIG. 49 shows a bottom rear side perspective view of the orifice member shown in FIG. 48; FIG. 50 shows a top side perspective view of the orifice member shown in FIG. 48; FIG. 51 shows a front side view of the deoccluding member shown in FIG. 9; FIG. 52 shows a top left side view of the deoccluding member shown in FIG. 51; FIG. 53 shows a top view of the cutter mechanism shown in FIG. 9; FIG. 54 shows a front side view of the cutter mechanism shown in FIG. 53; FIG. 55 shows a front side cross-section view of the cutter mechanism shown in FIG. 53; FIG. 56 shows a bottom view of the cutter mechanism shown in FIG. 53; FIG. 57 shows a right side view of the cutter mechanism shown in FIG. 53; FIG. 58 shows a top front perspective view of the cutter mechanism shown in FIG. 53; FIG. 59 shows a bottom left side perspective view of the cutter mechanism shown in FIG. 53; FIG. 60 shows a top view of the upper bearing member shown in FIG. 9; FIG. 61 shows a front side view of the upper bearing member shown in FIG. 60; FIG. 62 shows a front side cross-section view of the upper bearing member shown in FIG. 60; FIG. 63 shows a bottom view of the upper bearing member shown in FIG. 60; FIG. 64 shows a top right front perspective view of the upper bearing member shown in FIG. 60; FIG. 65 shows a bottom rear side perspective view of the upper bearing member shown in FIG. 60; FIG. 66 shows a top view of the lower bearing member shown in FIG. 9; FIG. 67 shows a front side view of the lower bearing member shown in FIG. 66; FIG. 68 shows a front side cross-section view of the lower bearing member shown in FIG. 66; FIG. 69 shows a bottom view of the lower bearing member shown in FIG. 66; FIG. 70 shows a right side view of the lower bearing member shown in FIG. 66; FIG. 71 shows a top right front perspective view of the lower bearing member shown in FIG. 66; FIG. 72 shows a bottom rear side perspective view of the lower bearing member shown in FIG. 66; FIG. 73 shows a top view of the body member shown in FIG. 9; FIG. 74 shows a front side view of the body member shown in FIG. 73; FIG. 75 shows a front side cross-section view of the body member shown in FIG. 73; FIG. 76 shows a bottom view of the body member shown in FIG. 73; FIG. 77 shows a top right front perspective view of the body member shown in FIG. 73; FIG. 78 shows a bottom rear side perspective view of the body member shown in FIG. 73; FIG. 79 shows a top view of the skirt shown in FIG. 9; FIG. 80 shows a front side view of the skirt shown in FIG. 79; FIG. 81 shows a front side cross-section view of the skirt shown in FIG. 79; FIG. 82 shows a top right front perspective view of the skirt shown in FIG. 79; FIG. 83 shows a bottom rear side perspective view of the skirt shown in FIG. 79; FIG. 84 shows a top view of the lock member shown in FIG. 9; FIG. 85 shows a right side view of the lock member shown in FIG. 84; FIG. 86 shows a top right front perspective view of the lock member shown in FIG. 84; FIG. 87 shows a bottom rear side perspective view of the lock member shown in FIG. 84; FIG. 88 shows a right side partial cross-section view of the receptacle impacting member shown in FIG. 9; FIG. 89 shows a right side cross-section view of the receptacle impacting member shown in FIG. 88; FIG. 90 shows a front side view of the receptacle impacting member shown in FIG. 88; FIG. 91 shows a right side view of the receptacle impacting member shown in FIG. 88; FIG. 92 shows a right front perspective view of the receptacle impacting member shown in FIG. 88; FIG. 93 show a top right front perspective view of the coil spring shown in FIG. 9; FIG. 94 shows a top right front perspective view of the torsion spring shown in FIG. 155; FIG. 95 shows a top view of the bottom or lower housing member shown in FIG. 9; FIG. 96 shows a front side view of the bottom or lower housing member shown in FIG. 95; FIG. 97 shows a top right front perspective view of the bottom or lower housing member shown in FIG. 95; FIG. 98 shows a left bottom rear side perspective view of the bottom or lower housing member shown in FIG. 95; FIG. 99 shows a rear bottom perspective view of a trigger of the type shown in FIG. 9 in the open position; FIG. 100 shows a flow rate chart illustrating flow rates through a device which does not utilize a trigger of the type disclosed herein; FIG. 101 shows a flow rate chart illustrating flow rates through a device which does utilize a trigger of the type disclosed herein; FIG. 102 shows a top view of a punctured foil lid of a receptacle after being used in an inhalation apparatus of the type described herein and illustrates the two curved inlet openings and the center outlet opening; FIG. 103 shows a cut-away view of a bottom portion of an apparatus according to the invention with a receptacle installed therein; FIG. 104 shows a cut-away view of a bottom portion of an apparatus according to the invention and shows an initial insertion position of the receptacle into the apparatus. The leading edge of the receptacle has passed between an arm of the receptacle impacting member and a bottom surface of the lower bearing member and the front curved surface of the tub portion of the receptacle has come into contact with the arm of the receptacle impacting member; FIG. 105 shows another cut-away view of FIG. 104 and shows an intermediate insertion position of the receptacle into the apparatus. The front curved surface of the tub portion of the receptacle has caused the arm of the receptacle impacting member to move or partially rotate clockwise causing the receptacle impacting member to also move downwards against the biasing force of the torsion spring; FIG. 106 shows another cut-away view of FIG. 104 and shows another intermediate insertion position of the receptacle into the apparatus. The front curved surface of the tub portion of the receptacle has caused the arm of the receptacle impacting member to move or partially rotate clockwise to about the twelve o'clock position causing the receptacle impacting member to also move downwards to its maximum downward position against the biasing force of the torsion spring; FIG. 107 shows another cut-away view of FIG. 104 and shows the final insertion position of the receptacle into the apparatus. The front curved surface of the tub portion of the receptacle has caused the arm of the receptacle impacting member to rapidly move or partially rotate clockwise to about the two o'clock position causing another arm of the receptacle impacting member to impact the rear curved side of the tub portion of the receptacle and then assume a ten o-clock position. During this insertion movement, the receptacle impacting member moves back upwards to its maximum upward position under the biasing force of the torsion spring; FIG. 108 shows a top view of the receptacle shown in FIG. 9; FIG. 109 shows a front side view of the receptacle shown in FIG. 108; FIG. 110 shows a bottom view of the receptacle shown in FIG. 108; FIG. 111 shows a top right front side perspective view of the receptacle shown in FIG. 108; FIG. 112 shows a partial flow diagram illustrating air flow into the receptacle from the inlet openings towards the center of the receptacle tub, and then up through the center opening of the receptacle and then finally up through the feed tube and past the deoccluding member; FIG. 113 shows front and side flow diagrams illustrating total air flow through the inhalation apparatus; FIGS. 114-123 show various cross-section views of the inhalation apparatus as it is being used and from different angles and positions; FIG. 124 shows an enlarged left side view of an exemplary cutter mechanism which can be used in the inhalation apparatus; FIG. 125 shows a top view of the cutter mechanism shown in FIG. 124; FIG. 126 shows a section view of FIG. 124 and shows a rotational direction of movement of the teeth which will form the inlet openings in the receptacle; FIG. 127 shows one of the teeth of FIG. 126 and non-limiting cross-sectional height and width dimensions in millimeters thereof; FIG. 128 shows an exploded view of another embodiment of the invention; FIG. 129 shows a perspective view of a mouthpiece of the embodiment shown in FIG. 128; FIG. 130 shows a perspective view of an adapter of the embodiment shown in FIG. 128; FIG. 131 shows a perspective view of a deoccluding device of the embodiment shown in FIG. 128; FIG. 132 shows a perspective view of a cutter mechanism of the embodiment shown in FIG. 128; FIG. 133 shows a perspective view of a bearing member of the embodiment shown in FIG. 128; FIG. 134 shows a perspective view of a body of the embodiment shown in FIG. 128; FIG. 135 shows a perspective view of a tray of the embodiment shown in FIG. 128; FIG. 136 shows a perspective view of a receptacle impacting member of the embodiment shown in FIG. 128; FIG. 137 shows a perspective view of a baseplate of the embodiment shown in FIG. 128; FIG. 138 shows a perspective view of a skirt member of the embodiment shown in FIG. 128; FIGS. 139-178 shows various diagrams and drawings relating to air flow characteristics of an apparatus of the invention. FIG. 179 shows the rho dimension of a conic segment PQ. DETAILED DESCRIPTION OF THE INVENTION The invention is directed to methods and apparatuses for the pulmonary delivery of a substance such as drugs. More particularly, the present invention relates to a method and apparatus for dispersing dry powder medicaments for inhalation by a patient. The invention is also directed to devices, which can be used in or on such devices such as a receptacle puncturing mechanism, a deoccluding device, a receptacle impacting device, and a receptacle lock device or system. Such features can be used alone or in combination with an apparatus according to the invention. Unless otherwise stated, a reference to a compound or component includes the compound or component by itself, as well as in combination with other compounds or components, such as mixtures of compounds. As used herein, the singular forms “a,” “an,” and “the” include the plural reference unless the context clearly dictates otherwise. Accordingly, unless indicated to the contrary, the numerical parameters set forth in the following specification and attached claims are approximations that may vary depending upon the desired properties sought to be obtained by the present invention. At the very least, and not to be considered as an attempt to limit the application of the doctrine of equivalents to the scope of the claims, each numerical parameter should be construed in light of the number of significant digits and ordinary rounding conventions. Additionally, the recitation of numerical ranges within this specification is considered to be a disclosure of all numerical values within that range. For example, if a range is from about 1 to about 50, it is deemed to include, for example, 1, 7, 34, 46.1, 23.7, or any other value within the range. Before further discussion, a definition of the following terms will aid in the understanding of the present invention. DEFINITIONS The terms used in this disclosure are defined as follows unless otherwise indicated. Standard terms are to be given their ordinary and customary meaning as understood by those of ordinary skill in the art, unless expressly defined herein. A composition that is “suitable for pulmonary delivery” refers to a composition that is capable of being aerosolized and inhaled by a subject so that a portion of the aerosolized particles reaches the lungs, e.g., to permit entry into the alveoli and into the blood. Such a composition may be considered “respirable” or “inhaleable.” An “aerosolized” composition contains liquid or solid particles that are suspended in a gas (typically air), typically as a result of actuation (or firing) of an inhalation device. A passive dry powder inhaler would be actuated by a user's breath. A “dry powder inhaler” is a device that is loaded with a unit dose of the drug in powder form. Generally, the inhaler is activated by taking a breath. For example, a capsule or blister is punctured and the powder is dispersed so that it can be inhaled, e.g., in a “Spinhaler” or “Diskhaler.” “Turbohalers” are fitted with canisters that deliver measured doses of the drug in powder form. As used herein, the term “emitted dose” or “ED” refers to an indication of the delivery of dry powder from an inhaler device after an actuation or dispersion event from a powder unit or reservoir. ED is defined as the ratio of the dose delivered by an inhaler device to the nominal dose (i.e., the mass of powder per unit dose placed into a suitable inhaler device prior to firing). The ED is an experimentally determined amount, and may be determined using an in vitro device set up which mimics patient dosing. To determine an ED value, as used herein, dry powder is placed into a device to be tested. The device is actuated (e.g., by inserting a blister, rotating a mouthpiece of the device, and applying a 30 L/min vacuum source to an exit of the mouthpiece), dispersing the powder. The resulting aerosol cloud is then drawn from the device by vacuum (30 L/min) for 2.5 seconds after actuation, where it is captured on a tared glass fiber filter (Gelman, 47 mm diameter) attached to the device mouthpiece. The amount of powder that reaches the filter constitutes the delivered dose. For example, for a capsule containing 5 mg of dry powder that is placed into an inhalation device, if dispersion of the powder results in the recovery of 4 mg of powder on a tared filter as described above, then the ED for the dry powder composition is 80% (=4 mg (delivered dose)/5 mg (nominal dose)). A composition in “dry powder form” is a powder composition that typically contains less than about 20 wt % moisture. As used herein, “mass median diameter” or “MMD” refers to the median diameter of a plurality of particles, typically in a polydisperse particle population, i.e., consisting of a range of particle sizes. MMD values as reported herein are determined by laser diffraction (Sympatec Helos, Clausthal-Zellerfeld, Germany), unless the context indicates otherwise. Typically, powder samples are added directly to the feeder funnel of the Sympatec RODOS dry powder dispersion unit. This can be achieved manually or by agitating mechanically from the end of a VIBRI vibratory feeder element. Samples are dispersed to primary particles via application of pressurized air (2 to 4 bar), with vacuum depression (suction) maximized for a given dispersion pressure. Dispersed particles are probed with a 632.8 nm laser beam that intersects the dispersed particles' trajectory at right angles. Laser light scattered from the ensemble of particles is imaged onto a concentric array of photomultiplier detector elements using a reverse-Fourier lens assembly. Scattered light is acquired in time-slices of 5 ms. Particle size distributions are back-calculated from the scattered light spatial/intensity distribution using an algorithm. “Mass median aerodynamic diameter,” or “MMAD,” is a measure of the aerodynamic size of a dispersed particle. The aerodynamic diameter is used to describe an aerosolized powder in terms of its settling behavior, and is the diameter of a unit density sphere having the same settling velocity, in air, as the particle. The aerodynamic diameter encompasses particle shape, density, and physical size of a particle. As used herein, MMAD refers to the midpoint or median of the aerodynamic particle size distribution of an aerosolized powder determined by cascade impaction at standard conditions (20° C.; 40% RH) using the device to be tested. “Fine particle fraction” is the fraction of particles with an aerodynamic diameter that is less than 5 microns (μm). Where specified, the fine particle fraction may also refer to the fraction of particles with an aerodynamic diameter that is less than 3.3 microns. “Fine particle dose” is the amount of particles with an aerodynamic diameter that is less than 5 microns (μm). Where specified, the fine particle dose may also refer to the amount of particles with an aerodynamic diameter that is less than 3.3 microns. “Receptacle” is a container. For example, a receptacle may be a unit dose receptacle, or it may be a reservoir having multiple doses. Examples of unit dose receptacles include blister packs and capsules. In certain embodiments, the receptacle may be removable from an inhaler device, or the receptacle may be part of an inhaler device. The receptacle typically comprises any material that allows tearing, e.g., a controlled tear, such as foil-plastic laminates. “Tearing” means to pull apart. A blade may be used to tear a material so long as the material pulls apart at a distance from a leading edge of the blade. “Cutting” means to divide. A blade may be used to cut a material such that a leading edge of the blade contacts the material to be cut. The “rho” dimension of a conic segment PQ defines the shape of the conic (see FIG. 179). The rho dimension specifies a ratio along a vector from the chord (PQ) through a point C to the vertex (R). Point C is at the maximum distance (CD), measured by a normal from the chord PQ to the conic segment PQ. Rho is a/(a+b). Cutter Mechanism One aspect of the invention relates to a mechanism configured to cut or tear materials. This aspect of the present invention may be used for most any application in which cutting or tearing is desired. As one example, the blades of the present invention may be used in the food packaging field. As another example, the mechanism may be configured to create at least one air inlet opening in a wall of a receptacle by causing a puncture in the wall and also causing a controlled tearing of the wall, whereby the tearing may bend torn edges of the wall inwardly (see e.g., FIG. 102). According to one non-limiting embodiment of the invention, such a mechanism can be utilized in the apparatus and/or method for aerosolizing a powdered medicament as described herein (see e.g., FIGS. 1-9, 24-27, and 114-123). The receptacle can take the form of a primary drug package which is sealed against moisture using a foil that spans the tub containing the powder (see e.g., FIGS. 108-111). To release the powder for inhalation by a user in an effective manner, puncturing of the foil in a substantially controlled fashion is desired. This control can be performed effectively using one or more substantially tooth-shaped members (see e.g., FIGS. 126-127). The tooth (or teeth), which performs the controlled puncturing, generally first moves into engagement with the package (e.g., by moving the tooth toward the package or by moving the package toward the tooth). Preferably, the receptacle remains static (neither raised nor lowered) in the apparatus and instead the receptacle puncturing mechanism moves vertically to a lower position, wherein the receptacle is punctured, and also to an upper or retracted position. This degree of movement should be sufficient to cause the foil of the package to be punctured. This generally occurs when the foil is locally, i.e., in the vicinity of the tooth, stretched beyond its ability to resist plastic deformation. When this occurs, the tooth punctures or tears through the foil and causes the torn edges to bend inwardly, i.e., into the tub of the receptacle. Alternatively, in other embodiments, the torn edges or flaps bend outwardly, or one edge or flap can go inwardly and the other outwardly. With the penetration depth of the tooth maintained, the tooth can then be moved across the foil surface in any geometric pattern whereby a side leading edge of the tooth essentially separates the foil. In this embodiment the tooth is moved in an arc-shaped movement and for a desired arc-angle. The arc-angle is typically at least about 90° or more, such as at least about 100°, 110°, 120°, 130°, 140°, 150°, 160°, 170°, or 180°, and may range from, e.g., from 40° to 350°, such as 50° to 300°, 60° to 250°, 70° to 200°, or 80° to 150°. In some cases, the ideal would be a complete 360° cut/tear, except that the central portion of the foil would come loose. Typically, the goal is to make as long of a cut/tear as possible, with just enough to keep the lidstock from coming apart. In some cases, there is also a need to raise the blades over spoke-like members that hold the feed tube in place. In addition to arc-shaped cuts or rotary tears, the blades of the present invention can be used to make cuts/tears of different shapes. For instance, the blades may be used to make linear cuts/tears. By way of non-limiting example, FIGS. 126-127 illustrate such tooth movement and FIG. 102 illustrates two arc-shaped inlet openings formed by two teeth of the type shown in FIGS. 126-127. The tooth or teeth can be retracted or caused to move away from the package in a linear or curvilinear fashion. This movement forms one or more arc-shaped inlet openings in the package or receptacle whereby the torn edges of the opening(s) are bent inwardly, i.e., into the receptacle, thereby ensuring that the edges will not substantially obstruct the flow of air into the receptacle when the receptacle is thereafter evacuated using the apparatus. This puncturing system, for example, provides advantages over a cutter mechanism that descends into the foil, cuts openings in the foil and then stays in place during evacuation. In some embodiments of this puncturing system, the user is aware of rotation but is not aware of the telescoping of the cutter mechanism, which occurs internally. Although less preferable, the invention, however, does not preclude using cutter/opening systems of the type used in Diskhaler® and Diskus® (see, e.g., U.S. Pat. Nos. 4,811,731; 5,035,237; and 5,590,645, which are
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