Method for making a rolled lip container

Details Method for making a rolled lip container Method for making a rolled lip container

1985-10-28

1986-11-11

Gilden, Leon

Metal deforming

With cutting

By shearing tool-couple

72352, B21D 2800

Patent

active

046215131

ABSTRACT:
A process for making a rigid packaging container which contains a "rolled lip" which comprises deforming a sheet of metal, plastic or paper composite material over a mold into a desired formed shape which contains a "lip", advancing a trimming means from the convex or bottom side of the shape while said shape is supported so that said shape does not deform; and trimming the shape from the convex or bottom side of the shape at a point on the lip of the shape which undercuts the periphery of the shape while, at the same time, forcing open the undercut of the lip of the shape.

REFERENCES:
patent: 4062311 (1977-12-01), Zugcic
patent: 4309888 (1982-01-01), Miller
patent: 4489584 (1984-12-01), Gall

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