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Class Information
Number: 425/542
Name: Plastic article or earthenware shaping or treating: apparatus > Female mold and charger to supply fluent stock under pressure thereto in fluid-tight relationship (e.g., injection mold, etc.)
Description: Apparatus comprising means defining a shaping cavity structure (i.e., a female mold) and means to force fluent stock material along a passage into the shaping cavity thereof under pressure, the shaping cavity and the stock forcing means adapted to function as a closed hydraulic system.










Sub-classes under this class:

Class Number Class Name Patents
425/585 Including feeder to supply stock to charger 34
425/577 Mold having movable core or movable pin 803
425/543 Molding of thermosetting or cross-linking stock 203
425/588 Plural mold cavities 478
425/545 To make slide fastener element 47
425/557 With accumulator, trap chamber, or serially arranged valves between charger and mold 197
425/567 With coupling between charger and mold 149
425/562 With means between charger and mold to cut off flow of fluent stock (e.g., needle valve, baffle, etc.) 389
425/574 With means to cause relative movement between mold and charger 283
425/589 With means to close mold 488
425/546 With means to evacuate mold or provide controlled environment 231
425/547 With means to heat or cool 432
425/595 With means to lock mold in closed position 398
425/578 With normally open stock chamber (e.g., hopper, etc.) 13
425/553 With preform severing means movable relative to mold 58
425/556 With product ejector 883
425/555 With shrinkage compensation means 97


Patents under this class:
1 2 3 4 5 6 7 8

Patent Number Title Of Patent Date Issued
8702412 Superhard components for injection molds Apr. 22, 2014
8651852 Apparatus and method for manufacturing ball joint Feb. 18, 2014
8647095 Resin transfer molding device and resin transfer molding method Feb. 11, 2014
8641399 Injection molding system having a digital displacement pump Feb. 4, 2014
8628321 Molding of nonuniform object having undercut structure Jan. 14, 2014
8591218 Injection device in a molding machine Nov. 26, 2013
8557168 External breast prosthesis and method of fabricating same Oct. 15, 2013
8535047 Injection mold having exhaust grooves Sep. 17, 2013
8512023 Injection mold assembly including an injection mold cavity at least partially defined by a polycrystalline diamond material Aug. 20, 2013
8506278 Resin transfer molding device and resin transfer molding method Aug. 13, 2013
8491298 Apparatus for sealing a pharmaceutically acceptable hard shell capsule Jul. 23, 2013
8480727 Endovascular implant having an integral graft component and method of manufacture Jul. 9, 2013
8475697 Method to manufacture reinforcement insertion type mascara brush and manufacturing for transfer mold Jul. 2, 2013
8440136 Steel alloy and tools or components manufactured out of the steel alloy May. 14, 2013
8377362 Method for manufacturing micro-channel, die for molding micro-channel chip, and micro-channel chip Feb. 19, 2013
8293163 Electrically driven injection molding system with dual-driving function and injection molding method using the system Oct. 23, 2012
8247059 Two-color molded product Aug. 21, 2012
8236229 Mold for development blade and method of producing development blade Aug. 7, 2012
8191854 Device, arrangement and method for manufacturing a component Jun. 5, 2012
8113808 Two-color molding equipment and two-color molded product Feb. 14, 2012
8099884 Identification device and method for manufacturing thereof Jan. 24, 2012
8092738 Method for molding an integral joint Jan. 10, 2012
8087919 Injection unit for an injection molding machine Jan. 3, 2012
8052410 Plastic injection mold Nov. 8, 2011
8025500 Decompression sprue bush and decompression machine nozzle Sep. 27, 2011
7993554 Method for the manufacture of a molding composition Aug. 9, 2011
7934923 Screw, injection apparatus, and pressure member May. 3, 2011
7919031 Method and system for making plastic cellular parts and thermoplastic composite articles utilizing same Apr. 5, 2011
7896001 Pressure-responsive device and associated method of manufacture Mar. 1, 2011
7828545 Apparatus and method for producing structures with multiple undercut stems Nov. 9, 2010
7794643 Apparatus and method for molding object with enhanced transferability of transfer face and object made by the same Sep. 14, 2010
7794227 Injection mold having an air channel Sep. 14, 2010
7771645 Mold and method for forming products Aug. 10, 2010
7766648 Coating in multiple injection molding part cavities Aug. 3, 2010
7762802 Mold insert stack for use in an injection mold and a coupler thereof Jul. 27, 2010
7753675 Auxiliary position apparatus for injection molding machine Jul. 13, 2010
7740785 Closure cap with injection molded annular gasket and method of making same Jun. 22, 2010
7740789 Method for eliminating detrimental effects of flash on cups used for sport stacking Jun. 22, 2010
7704068 Drive unit Apr. 27, 2010
7695266 Molding structure Apr. 13, 2010
7691315 Injection mold having cavities in series Apr. 6, 2010
7686607 Actuator Mar. 30, 2010
7665983 Microcontact printing Feb. 23, 2010
7666335 Controlling warpage through melt rotation technology Feb. 23, 2010
7648117 Injection mold assembly Jan. 19, 2010
7614865 Method and apparatus for filling a tire and wheel assembly with a closed cell polyurethane foam Nov. 10, 2009
7614868 Display apparatus and metal mold structure Nov. 10, 2009
7604767 Side gate type injection molding die and molded component manufacturing method using the same Oct. 20, 2009
7581943 Contact lens molds and systems and methods for producing same Sep. 1, 2009
7582246 Transferring and molding method and transferring and molding apparatus Sep. 1, 2009

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