Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – To produce composite – plural part or multilayered article
Reexamination Certificate
2005-05-23
2009-12-01
Vargot, Mathieu D. (Department: 1791)
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
To produce composite, plural part or multilayered article
C156S124000, C156S422000, C264S310000, C425S117000, C425S327000, C425S395000, C425S402000
Reexamination Certificate
active
07625511
ABSTRACT:
A method and device for manufacturing tire's annular member having a stretch mainly in radial direction by use of simple devices and simple way of pressing with high precision and easiness, as to produce tire product in high quality with no fluctuation of mass and/or uniformity, comprising: a first mold including a profile mold having an annular recess; a second mold which faces the first mold; and an extruder that continuously extrudes a rubber body into the recess of the profile mold. Concurrent with such extruding, the profile mold is rotated by one turn so as to charge the rubber body into the annular recess in a manner as annularly continuous. Then, the first and the second molds are brought abut each other so as to press the rubber body between the profile and second molds; thus shaping the rubber body into a shape defined by the profile mold.
REFERENCES:
patent: 4983239 (1991-01-01), Holroyd et al.
patent: 1-314151 (1989-12-01), None
patent: 2002-187218 (2002-07-01), None
Kudo Shigeo
Tanaka Toshiyuki
Tatara Tetsuo
Jordan and Hamburg LLP
Toyo Tire & Rubber Co., Ltd.
Vargot Mathieu D.
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