B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 43/18 (2006.01) B29C 43/08 (2006.01) B29C 70/80 (2006.01) B29C 47/00 (2006.01)
Patent
CA 2123387
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.
Gowling Lafleur Henderson Llp
Owens-Illinois Closure Inc.
Rexam Closure Systems Inc.
LandOfFree
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