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Class Information
Number: 425/351
Name: Plastic article or earthenware shaping or treating: apparatus > Sets of male-female press molds > Including positive means to eject product
Description: Apparatus comprising an element (e.g., pin, pressurized gas source, etc.) to positively expel the formed article from the mold cavity.

Patents under this class:

Patent Number Title Of Patent Date Issued
8317507 Systems for making microtablets for drug delivery Nov. 27, 2012
7946839 Apparatus and method for removing objects from a forming device May. 24, 2011
7934920 Molding machine May. 3, 2011
7883330 Powder compression molding machine and apparatus for continuous production of powder compression molded item using the machine Feb. 8, 2011
7845935 Lightweight knockout for forming die assembly Dec. 7, 2010
7429170 Method and machine for compression molding closure shells Sep. 30, 2008
7390183 Tool rig for the compaction of particulate material Jun. 24, 2008
7361011 Ejector system Apr. 22, 2008
7264763 Method and apparatus for the manufacture of compacts Sep. 4, 2007
7241129 Machine for compression molding closure shells Jul. 10, 2007
7220118 Horizontal multi-material molding machine May. 22, 2007
6899839 Building products May. 31, 2005
6824375 Arrangement for a consecutive two-stage ejector of the built-in type Nov. 30, 2004
6767201 Carrousel apparatus for manufacturing, by compression molding, plastics items Jul. 27, 2004
6632080 Device for the production of disposable lenses Oct. 14, 2003
6602065 Apparatus for compression molding plastic closures Aug. 5, 2003
6592923 System and method for molding a snack chip Jul. 15, 2003
6585508 Carousel-type apparatus for manufacturing caps made of plastics by compression molding Jul. 1, 2003
6537053 Modular molding system, and modules for use therewith Mar. 25, 2003
6413457 Powder pressing apparatus, punch, method for pressing powder and method for manufacturing the punch Jul. 2, 2002
5904643 Tray-forming and apparatus May. 18, 1999
5505608 Cheese moulding and hardening apparatus, particularly for pasta filata cheese Apr. 9, 1996
5462425 Apparatus for demoisturizing coal Oct. 31, 1995
5352111 Apparatus for removing a hand held food product from a baking mold Oct. 4, 1994
5213818 Device for taking and conveying tablets coming out of a rotary tabletting machine May. 25, 1993
4975039 Food molding and portioning apparatus Dec. 4, 1990
4961884 Process for producing substrate of optical disc Oct. 9, 1990
4950149 Molding apparatus for fiber-filled resin Aug. 21, 1990
4950150 Briquetting machine Aug. 21, 1990
4867670 Apparatus for producing press shaped bodies Sep. 19, 1989
4802836 Compaction device for concrete block molding machine Feb. 7, 1989
4793791 Rotary powder compression molding apparatus Dec. 27, 1988
4778439 Apparatus and method for forming a clamshell assembly Oct. 18, 1988
4772198 Apparatus for injection-molding threaded plastic caps and stoppers Sep. 20, 1988
4755128 Apparatus for releasing a press-formed article from a die set Jul. 5, 1988
4725216 Masonry manufacture Feb. 16, 1988
4710122 Machine for manufacturing flat bodies in a continuous line Dec. 1, 1987
4710124 Automatic part and runner separator Dec. 1, 1987
4653997 Injection mold apparatus with gas ejection Mar. 31, 1987
4645446 Injection molding machine with self-connecting ejection device Feb. 24, 1987
4640671 Adobe block press Feb. 3, 1987
4545753 Injection molding machine with self-connecting ejection device Oct. 8, 1985
4406606 Apparatus for producing soil building blocks Sep. 27, 1983
4376750 Method for separating and removing a molded element formed by firing and pyroplastic adhesion of the material from a mold Mar. 15, 1983
4369024 Brick molding machine Jan. 18, 1983
4341510 Multiple press for ceramic moldings Jul. 27, 1982
4276318 Apparatus and method for molding meat patties Jun. 30, 1981
4233006 Machine for forming expanded resinous products Nov. 11, 1980
4106884 Production of articles of foamed plastics material Aug. 15, 1978
4038007 Apparatus for making hollow molded products Jul. 26, 1977

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