External plate locks for mold plates

Details External plate locks for mold plates External plate locks for mold plates

2011-06-21

2011-06-21

Mackey, James (Department: 1744)

Plastic article or earthenware shaping or treating: apparatus

With apparatus assembly or dismantling means or with idle part

For extrusion or injection type shaping means

C425S451900, C425S595000

Reexamination Certificate

active

07963758

ABSTRACT:
A locking device for a mold including more than one movable plate. A spring-biased wedge block includes a first side wall and an opposing second side wall that is beveled with respect to the first side wall. A latch bar includes an inclined latch end for engaging with the second side wall of the wedge block. A cam bar includes a cam end for engaging with the first side wall of the wedge block. At least one of the wedge block, the latch bar or the cam bar is formed of a 4340 steel alloy, and at least one of the latch end, the cam end, or the wedge block second side wall is nitrided or nitride coated.

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STRACK® Normalien, STRACK® catalog, believed to be published at least as early as Jul. 2007 (31 pages).
www.MoldGizmo.com, “LCH-01 and AAC-01,” Apr. 17, 2008 (9 pages).
U.S. Appl. No. 60/621,369, filed Oct. 23, 2004, Sukonik, “Sliding latch-lock” (not published) (11 pages).

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