Stack mold linkage with unequal strokes

Details Stack mold linkage with unequal strokes Stack mold linkage with unequal strokes

1998-10-01

2000-08-08

Mackey, James P.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Forming plural articles

2643288, 425190, 425588, 425592, B29C 4564

Patent

active

060997842

ABSTRACT:
The present invention relates to stack mold linkages for creating unequal strokes for use in an injection molding machine for making different sized molded parts. The stack mold linkages comprise linkages for moving each of at least two mold assemblies between a mold closed position and a mold open position and for separating the mold halves forming the mold assemblies by unequal stroke lengths.

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patent: 3941548 (1976-03-01), Bruder
patent: 4207051 (1980-06-01), Wright et al.
patent: 4400341 (1983-08-01), Sorensen
patent: 4718845 (1988-01-01), Sheffield et al.
patent: 4753592 (1988-06-01), Kaaden
patent: 4929166 (1990-05-01), DiSimone et al.
patent: 5104308 (1992-04-01), Morton et al.
patent: 5458843 (1995-10-01), Brown et al.
patent: 5578333 (1996-11-01), Schad et al.
patent: 5707666 (1998-01-01), DiSimone et al.

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