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
Patent
1995-08-18
1997-08-19
Vargot, Mathieu D.
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
264 405, 2642976, 264310, 425127, 425149, 425150, 425348R, 425453, 425457, 425809, B29C 4318
Patent
active
056585187
ABSTRACT:
A method and apparatus for compression molding closure liners wherein a set of tooling including a first assembly and second assembly which are movable toward and away from one another. The first assembly of tooling has a liner forming member and a closure engaging sleeve thereon and the second assembly has a closure supporting pad thereon. A cam is associated with the first assembly of tooling for moving the closure engaging sleeve into engagement with a closure and the liner forming member into position for compression molding a charge of plastic extrudate in the closure when it is supported on the closure supporting pad. A gas cylinder is associated with the closure supporting pad providing a predetermined controlled pressure that determines the compression molding force on the plastic. In a preferred mode, a plurality of sets of tooling are provided in circumferentially spaced relation to one another on a turret.
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Owens-Illinois Closure Inc.
Vargot Mathieu D.
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