Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – Shaping against forming surface
Reexamination Certificate
2005-09-13
2009-11-10
Heitbrink, Jill L (Department: 1791)
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
Shaping against forming surface
C264S328190, C425S557000, C425S561000
Reexamination Certificate
active
07615181
ABSTRACT:
A rubber injection molding device comprising: a mold having a molding cavity therein; an injecting machine including an injection cylinder having an injection chamber for storing a rubber therein, and an injection plunger for injecting the rubber from the injection chamber into the molding cavity by means of an advancement of the injection plunger; a feed machine having a feed cylinder with a feed aperture formed at a tip end thereof and connected with the injection chamber through a feed duct, and being adapted to feed into the injection chamber, through the feed duct the rubber in a mixed state, and a pushing assembly which pushes into the injection chamber the rubber that remains within the feed duct after a feed operation of the rubber by the feed machine. A manufacturing method of a rubber product by using the molding device is also disclosed.
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Akatsuka Yuki
Aoi Takahiro
Imai Takahiro
Inukai Yukio
Kato Shigeki
Heitbrink Jill L
Oliff & Berridg,e PLC
Sanyu Industries, Ltd.
Tokai Rubber Industries Ltd.
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