Method of making plastic plate with rolled edge rim

Details Method of making plastic plate with rolled edge rim Method of making plastic plate with rolled edge rim

1994-10-13

1996-06-04

Tentoni, Leo B.

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

264322, B29C 5334

Patent

active

055230423

ABSTRACT:
Molded plastic plates having a rolled edge rim and a method of rolling the edges of molded plastic plated. The plastic plates are pre-molded with lugs that project outwardly from the sides of the plates. The lugs of one plate contact the rim of the next successive plate in a stack of plates to create a gap between the plates stacked one on top of another. The gap allows each individual plate to be picked up by the threads on a plurality of threaded rollers which press on the rim of the plate to form the rolled edge.

REFERENCES:
patent: 4391768 (1983-07-01), Arends et al.

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