Apparatus and method for forming a multi-compartmented tray from

Details Apparatus and method for forming a multi-compartmented tray from Apparatus and method for forming a multi-compartmented tray from

1983-06-29

1985-04-30

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Plural sequential shaping or molding steps on same workpiece

264320, 264322, 264324, 4253871, 425388, 425398, B29C 1700

Patent

active

045143536

ABSTRACT:
An apparatus and method are disclosed for forming a multi-compartmented tray from a sheet material without tearing or bowing. At least a portion of one compartment, and preferably the entire compartment, is formed in advance of other compartments. The apparatus for doing so comprises a preformer on the male die for forming the first compartment before the rest of the male die engages the workpiece.

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