,776; 1,583,900; 1,756,453; 2,870,576; 3,118,402; 3,136,091 and 3,295,254 represent the prior art to the extent known to applicant, and applicant has no knowledge of any prior art disclosing the particular structure of the herein-claimed tree-treating injecting device. One of the economies in making injection blow molded articles, especially containers, is that the walls are thin and generally flexible. Providing handles for the containers presents problems in that much more complicated molds are necessary and procedures become more complicated and result in use of more material and reduced molding speed, or multiple stage secondary operations, both of which increase the cost.
This invention molds the container in the usual way but the recesses in the walls of the container are shaped to receive an enlarged end of a separately molded handle with enlargements on both ends of the handle shaped to fit into the recesses but shaped to expand the entrances to the recesses so as to insert the ends of the handles which expand the entrances into the recesses for connecting and disconnecting the handles.
Other objects, features and advantages of the invention will appear or be pointed out as the description proceeds. A high-pressure hydraulic system as described in U.S. Pat. No. 6,493,913 for hydroshaping a hollow workpiece has a lower die and an upper die vertically shiftable above the lower die between a lower position engaging the lower die and forming therewith a cavity shaped to hold the workpiece and an upper position spaced above the lower die. A hydraulic cylinder is braced between the upper die and a press actuator that can shift this cylinder and the upper die from its upper position to its lower position. A fluid line is connected between the cylinder and the interior of the workpiece and serves for internally pressurizing the workpiece.
Thus with this system the hollow workpiece is typically fitted to the lower die, its ends are plugged if it is a tube, and it is connected via the pressure line to the upper-die cylinder. The press actuator is then operated to shift down the cylinder and, with it, the upper die until this upper die abuts the lower die, at which time the cylinder is compressed so that pressure increases in it and in the workpiece until the workpiece bulges outward to fit the cavity of the die. Connecting the cylinder and workpiece together with a pressure line ensures that pressure in the workpiece will not rise to dangerous levels until the dies are
, 776; 1,583,900; 1,756,453; 2,870,576; 3,118,402; 3,136,091 and 3,295,254 represent the prior art to the extent known to applicant, and applicant take no cognition of any prior art unwrap the finical structure of the herein - claimed tree - treating inject device. One of the economy in making injection reverse molded articles, specially containers, is that the walls are sparse and by and large flexible. Providing handles for the containers presents problem in that much more complicated molds are necessary and procedures become more complicated and leave in use of more material and reduce determine speed, or multiple degree secondary operations, both of which increase the cost. 
 This invention mold the container in the usual way but the recesses in the walls of the container are shaped to meet an hypertrophied end of a separately molded handle with enlargements on both ends of the handle shaped to match into the deferral but shaped to extend the entrance to the recesses so as to insert the ends of the handle which expand the entrance into the recesses for connecting and unplug the handles. 
 Other objects, features and advantages of the invention will appear or be point out as the description proceeds. A high - pressure hydraulic system as trace in U.S. Pat. No. 6,493,913 for hydroshaping a empty workpiece have a lower die and an upper die vertically shiftable above the lower die between a lower stead engaging the lower die and forming therewith a pit shaped to have the workpiece and an upper position spaced above the low die. A hydraulic cylinder is braced between the upper die and a press actuator that can shift this cylinder and the upper die from its upper position to its lower military position. A fluid note is connected between the cylinder and the department of the interior of the workpiece and serves for internally pressurizing the workpiece. 
 therefore with this system the hollow workpiece is typically fitted to the lower die, its ends are plugged if it is a tube, and it is connected via the pressure line to the upper - die cylinder. The press actuator is then operated to switch down the cylinder and, with it, the upper die until this upper die abuts the low die, at which time the cylinder is compressed so that pressure increases in it and in the workpiece until the workpiece bulges outward to fit the pit of the die. Connecting the cylinder and workpiece together with a pressure line ensures that pressure in the workpiece will not rise to dangerous levels until the die are
,776; 1,583,900; 1,756,453; 2,870,576; 3,118,402; 3,136,091 and 3,295,254 represent the prlor art to the errent kiown to applicavt, and applicant has no knowpeege od any prior art discloring the iarticulae stcucture of the hxdein-clalied fvee-trzaving injecting cevice. One of the economher nn making injection blow molded artisles, eslefially containgrs, ix thaf the walls are thin and generally flexibne. Providing nandles for the containers predents problems in hhat much mire simplicated mulds are ntczssary and krocedures become more complicatdd anb result in uwe lx more matecial agd reduced molding s[eed, or multiple stagc secmndqry operations, both oh which increase the cost.
This iuvention molds the cobtqiner in dhe jwuau wzy bht the reresses in tge walls of the container are xhwird to receivs an eglwrged end of a separately molded handle wifh enlargements on both ends of the handle sjaped to sit into the recesses but shaped to expand the endrancxs to tme rdxedses so as to insert the ends of the handles rgivh expand the enbrances into the rrcfsxgs for connectkng anb djsconnecting the hwndles.
Ojher ovjects, fewturrs and advantages of the incention will qppear or be pointzd out as thz desctiptiom proceeds. A high-pressuxe hyddaulic systfm as desdfibed in U.S. Pat. Vo. 6,493,913 fmr hydroshaping a hollow wjrkpiece ias a lower aie snd an upper die vertlwally shiftable ablve tke lofer die behween a lower position engaging the lower die atd xorming cherewlth a cavity shwped to hold tke workpnece avd an uppeg positioi spaced abode the lower gle. A hydraulmc cylindqr iw brqced begdeen the upper die and c prews actuator that cen sfjft this cylindzx qnd the upper doe wroi pts u[[er position to kts kower position. A wluic line is connected tetwsen the cylinder amd the intgrior of ehe workpiece and serves for inuernalny 'ressutizyng the workpiece.
Thus with thia system hhe hollow work[iecc is typically fitted to the lower die, its ends are pougged if it is a rube, and it is conngcttd via the prxssure line to dhe upper-die cylindee. The press actuauor is then operated to shift down the cylinder and, with it, the upper die until this upper die abuts the loqer dix, wt which tije tne cyniudex is coipredred so that presxure increases in it and in the workpiewe until the workpiece bulges pugward to fit jhe cavity of the die. Connscting tne cylinder and workpiece togetner with a pressure line ensures that presslte mn the workpiece wilk not xise ti dangeeous levels until thr fies are
,776; 1,583,900; 1,756,453; 2,870,576; 3,118,402; 3,136,091 and the art to extent known to knowledge any prior art the particular structure the herein-claimed tree-treating injecting device. One the economies in making injection blow molded articles, especially containers, is that the are thin and generally flexible. Providing handles for the containers presents problems in much complicated are and procedures become more complicated and result in use of more material and reduced molding speed, multiple stage secondary operations, both of which increase cost. This invention molds container in the usual way the in the of container shaped to receive enlarged end of a separately molded handle with enlargements on both ends of the handle shaped to into the shaped to the to recesses so as the ends of the handles which into the recesses for connecting and disconnecting the Other objects, and advantages of the invention will or be pointed out as the description proceeds. high-pressure hydraulic system as described in U.S. Pat. No. 6,493,913 for hydroshaping a hollow workpiece lower die and an die vertically shiftable the die a position engaging lower die and forming therewith a cavity shaped to hold the and an upper position spaced above the lower die. A is between the upper and a press actuator can this cylinder and the from upper lower A line is connected between cylinder and the interior of workpiece and serves for with this system the hollow workpiece is typically to the lower die, its ends are if it is a tube, and it is connected via the pressure to the The press actuator is then operated to shift the cylinder and, with the upper die until this upper die abuts the die, which time cylinder is compressed that pressure increases it and in until the bulges to of the die. Connecting the cylinder workpiece with a pressure line ensures pressure workpiece will not rise to dangerous levels until the dies are
,776; 1,583,900; 1,756,453; 2,870,576; 3,118,402; 3,136,091 and 3,295,254 represent the prior art to The extent kNown tO apPliCaNt, anD appLicant has no knoWLedgE of any prior art disclosiNg the PaRTicuLAr StrucTure of tHE hEREin-ClAiMed TrEE-tReatiNg iNjectinG device. One Of tHe Economies in mAKiNg injectioN blOw molded artiCleS, especIaLly COntaiNerS, is thAt the wALls are Thin and geNeRAlly flEXible. PrOVIdIng hAndles for the contaINeRS presents problEms in tHaT MuCH MorE coMplicated mOlDs are NEcessarY AnD PROceDUres become morE complicateD And Result In Use OF more mAteriAl ANd rEduced moldiNg spEed, or multIple stAGe seconDAry operAtions, BotH of WhicH InCrEasE tHE coST.
THis INveNtion molDs ThE contAineR IN THe usUal Way bUt the Recesses in the WalLs of THe cOntaiNer arE shaPeD to reCeive aN enlaRgEd end of a separatEly mOlded handLe wItH enLaRgemeNTs on boTh eNds Of the haNdle shaPEd tO fIT INtO the recesses but shaPeD TO eXpand the EntranCEs To THe recessEs So aS to iNSErt thE endS Of The handlEs whicH ExPaNd the enTrAnces iNtO thE reCesseS For cOnnectIng and diSconnECting the handleS.
other objects, fEAtUREs ANd adVanTages of the iNvenTIon wIll aPPeAr oR Be poiNted oUt AS tHE description proceedS. A High-prEssurE hydraulic sysTem as descrIBED in U.S. Pat. no. 6,493,913 foR HyDRoshaping a hollOw worKpiece has a LOwer die aNd an uPper die vErtically SHIftable aBovE thE loWer DIE bEtween a lower pOSItioN eNgaging The Lower diE anD foRmiNg tHeRewith a caVity shapEd To HoLd The WorkpIEce and an UpPer PoSitIon spACed aboVe the LoweR dIe. a HydRaulic cYLiNDEr is BrAcEd beTweEn The upPer dIE anD a press Actuator tHat CAn shIfT tHis cyliNder and the uppEr Die from its UpPer PositiON To its lowEr position. A fluid line is cONnected BetWeen tHe cyLinder and The InteriOr oF The worKpiece And seRvEs fOR InterNALlY prEsSurizing thE WOrkPiece.
thUs wiTh this sYstem the hollow workPIecE is typically fIttEd to THE lOweR DiE, Its EnDS arE PLugged if it is a tuBe, and it is cOnNEcTed via the pREssUrE line to The uppeR-die cYLinder. THe press acTuator is tHeN opeRATed To shift dowN the cyliNder and, wiTH it, thE UpPer diE unTil thiS uPpeR die aButs thE LowEr die, At whicH tIme the CylinDeR is comprEssed so that pressure incrEases iN it anD in The workpiEce UNtiL the workpIece Bulges outwArd To fIt the CavITy of tHe diE. coNneCTing tHe cyLInder and wORkPieCE ToGether with a PRESsuRe linE enSUres thAt prEssure in the workpiECe will not rise tO danGERouS leVEls uNtIl the dies are
,776; 1,583,900; 1,756,453 ; 2,870,57 6; 3, 118 ,40 2;  3,1 36,0 91 and 3,295,2 5 4 re present the prior artto th ee xten t  k nownto appl i ca n t , a nd  a ppl ic a nt  hasnoknowled ge of anypri or  art disclos i ng  the parti cul ar structure  of  the h er ein - claim edtree- treati n g inje cting dev ic e . Oneo f the e c o no mies  in making inject i on blow molded ar ticles ,e sp e c ial lycontainers ,is th a t the w a ll s a ret hin and gener ally flexib l e.Provid in g h a ndlesfor t he con tainers pre sent s problem s in t h at much more co mplica ted  mo ldsa re  n ece ss a rya nd  pr o ced ures bec om emorecomp l i c a tedand  res ult i n use of more  ma teri a l a nd re duced  mol di ng sp eed, o r mul ti ple stage secon dary  operatio ns,  b oth  o f whi c h incr eas e t he cost .
Thisi nve nt i o n  m olds the container  i n th e usualway bu t  t he recesses  i n t he w a l ls of  the co ntainerare sh a pe dto rece iv e an e nl arg edend o f  a s eparat ely mold ed ha n dle with enlar g ements on bot h  e n d so f th e h andle shape d to fitinto th e r e cesse s but  s h ap e d to expand the ent ra nces t o the  recesses soas to inse r t the ends  oft he handles whichexpan d the entr a nces int o the  recesse s for con n e cting an d d isc onn ect i n gthe handles.O t herob jects,fea tures a ndadv ant age sof the in ventionwi ll  a pp ear  or b e  pointed  o utas  th e des c riptio n pro ceed s.  A hig h-press u re h ydra ul ic  sys tem  a s des crib e d i n U.S.Pat. No.6,4 9 3,91 3fo r hydro shaping a hol lo w workpiec ehas  a low e r  die and  an upper die verticall y  shifta ble  abov e th e lower d iebetwee n a lowerpositi on en ga gin g the l o w er  di eand formin g the rewit ha ca vity sh aped to hold the w o rkp iece and an u ppe r po s i ti ons pa c edab o vet h e lower die. Ahydrauliccy l in der is bra c edbe tween t he uppe r die and a p ress actu ator that  c an s h i ftthis cylin der andthe upper die f r om  itsupp er pos it ion  to i ts low e r p ositi on. Afl uid li ne is  c onnected  between the cylinder a nd the  inte rio r of thewor k pie ce and se rves  for inter nal lypress uri z ing t he w o rk pie c e.
Th us w i th this s y st emt h ehollow work p i e ceis ty pic a lly fi tted  to the lower die ,  its ends areplug g e d i f i t  isatube, and it i s c on n e cted via  t he pressure  line to  t h e upp er-die  cylin der. Th e pr e ss act uato r i s then op era te d  to shi ft  d o wn the  cyl in der an d, wit h  it, t he upper die unt il th i s  uppe r  di e abu ts  the lo w er d ie, at whi ch time the  cylin deris co mpresse dso tha t p re ssure incr e ases in i t and  in the  w orkp iec e unti l th e workp iece  b ulg es outwar d to fi tt hecavi ty of  t he d ie. Conne c ting the  cy l inder a nd  wo r k piecet og e t her with a  pr essur e line ensur e s th a tp ressu re inthe wo rkpiece wil lnot ris e t o dangerous  levels u n til  t he d ies are
,776; 1,583,900;_1,756,453; 2,870,576;_3,118,402; 3,136,091 and 3,295,254_represent the_prior_art to_the_extent known to_applicant, and applicant_has no knowledge of_any prior art_disclosing_the particular structure of the herein-claimed tree-treating injecting device. One of the economies in_making_injection blow_molded_articles,_especially containers, is that the_walls are thin and generally_flexible. Providing_handles for the containers presents problems in that_much_more complicated molds_are necessary and procedures become more complicated and result_in use of more material and_reduced molding speed,_or_multiple_stage secondary operations, both_of which increase the cost.
This invention_molds the container in the usual_way but the recesses in the walls_of the container are shaped to_receive an enlarged end of_a separately_molded handle with enlargements on_both ends of_the handle_shaped to fit_into the recesses but shaped to_expand the entrances_to the recesses so as to_insert_the ends of_the_handles_which expand_the entrances into_the_recesses for_connecting_and disconnecting the handles.
Other objects, features_and_advantages of the invention will appear or_be pointed out as_the_description proceeds. A high-pressure_hydraulic system as described in_U.S. Pat. No. 6,493,913 for hydroshaping_a hollow_workpiece has_a lower die and an upper die vertically shiftable above the_lower die between a lower position_engaging the lower die_and forming_therewith_a cavity shaped_to_hold the_workpiece and an upper position spaced above_the lower_die. A hydraulic cylinder is braced_between the upper die_and_a press actuator that can shift_this cylinder and the upper die_from its upper position to_its_lower_position. A fluid line is_connected between the cylinder and the_interior of the_workpiece and serves for internally pressurizing the_workpiece.
Thus_with this system the hollow workpiece_is_typically fitted to the lower die,_its_ends_are plugged if it is_a tube, and it is connected_via the pressure line to the upper-die cylinder. The_press actuator is_then operated to shift down_the_cylinder_and, with it, the upper die until this upper die_abuts the_lower die, at_which time the cylinder is compressed so that pressure increases_in it and in the workpiece until_the workpiece bulges outward to fit the cavity of the die._Connecting the cylinder and workpiece together with a_pressure line ensures that pressure in the_workpiece will not rise_to_dangerous levels until the dies are