Plastic article or earthenware shaping or treating: apparatus – Distinct means to feed – support or manipulate preform stock... – Female mold type means
Patent
1994-10-24
1997-05-06
Nguyen, Khanh P.
Plastic article or earthenware shaping or treating: apparatus
Distinct means to feed, support or manipulate preform stock...
Female mold type means
425544, 425546, 425812, 425DIG228, 26427217, 249141, B29C 4502, B29C 4534
Patent
active
056268874
ABSTRACT:
A plunger (22), used in a standard mold, has a vent seal device (23) and spring (24) that evacuates air through an exhaust port 26a, and channels 26 and 26b from the mold prior to moving the mold compound into the runner 27.
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patent: 4714423 (1987-12-01), Hattori et al.
patent: 5082615 (1992-01-01), Sakai
patent: 5336272 (1994-08-01), Tsutsumi et al.
patent: 5435953 (1995-07-01), Osada et al.
patent: 5460502 (1995-10-01), Majercak
Chen C. S.
Chou C. H.
Wang T. H.
Brady III W. James
Donaldson Richard L.
Nguyen Khanh P.
Texas Instruments Incorporated
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