Manufacture of foil containers

Details Manufacture of foil containers Manufacture of foil containers

1978-02-03

1980-07-15

Gilden, Leon

Metal deforming

With cutting

Machining after final metal-deforming

113 1G, 113120G, 113120W, B21D 2200

Patent

active

042121841

ABSTRACT:
The objects of the invention are the manufacture of drawn foil containers which have better appearance and strength and which can be made with these advantages from thinner foil and with greater depth. The essential apparatus employed to achieve these objects having a punch for drawing the container, is characterized by upper and lower peripheral guide structures located around the punch which present a plurality of intercalating radially aligned ridge formations for forming in accordance with the process alternate upwardly and downwardly directed light indentations in a flat foil blank before it is drawn and lightly guiding the indented blank to fold into double fold pleats which are thereafter drawn over a drawing edge to form the walls of the container. The container produced is characterized by double fold pleats in its walls.

REFERENCES:
patent: 3229886 (1966-01-01), Grogel
patent: 3496896 (1970-02-01), Smith
patent: 3580041 (1971-05-01), Tilly

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