Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – Shaping against forming surface
Reexamination Certificate
2007-01-02
2007-01-02
Heitbrink, Jill L. (Department: 1732)
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
Shaping against forming surface
C264S328150, C425S547000, C425S556000, C425SDIG058, C249S059000, C249S064000
Reexamination Certificate
active
11017585
ABSTRACT:
A Bi-directional rack assembly that rotates one column of threaded cores and unscrews threaded closures while moving in the forward direction. The Bi-directional rack then mechanically changes position to engage an adjacent column of rotating threaded cores and at the end of a second molding cycle rotates the threaded cores and unscrew threaded closures while moving in the reverse (reset) direction. A set of timed-advance devices are engaged by a smaller pinion gear and idler gear assemblies to the Bi-directional rack and as the Timed-Advance devices are activated, they allow pneumatic pistons to advance the stripper plate in time with the threaded closures as they are being unscrewed from the threaded cores. A second “rapid advance” pneumatic piston eliminates the need for an external rapid rise camming feature. A rotating core comprising a stock, rotating core, a stock water-seal insert and a custom core top.
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Chalcraft Albert Bruce
Seidelman Gerald
Creating Mold Solutions, Inc.
Heitbrink Jill L.
LaPointe Dennis G.
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