Container intended for contents under pressure together with a m

Details Container intended for contents under pressure together with a m Container intended for contents under pressure together with a m

1980-09-08

1982-12-21

Sipos, John

Package making

Methods

Forming a cover adjunct or application of a cover adjunct to...

53453, 53454, 53482, 53484, 53451, B65B 906, B65B 4704, B65B 6102

Patent

active

043642209

ABSTRACT:
The invention relates to a sheet metal container adapted so that it can withstand an internal pressure. The container comprises two combined shell-shaped cavities, compression-moulded from the same web which cavities are brought together as the web is doubled along pre-impressed folding lines in two steps, namely a first step wherein the longitudinal edges of the web are joined together to form a tube of an elongated, substantially triangular cross-section, and a second step when the tube formed, after the contents have been introduced, is pressed flat and is sealed around the shell-shaped cavities. Finally the web is cut or punched around the hollow bodies formed by the shell-shaped portions to form a flange, closed in itself, which flange is folded down or beaded.

REFERENCES:
patent: 1402293 (1922-01-01), Heist
patent: 2248471 (1941-07-01), Stroop
patent: 2718105 (1955-09-01), Ferguson
patent: 3039905 (1962-05-01), Weintraub
patent: 3048951 (1962-08-01), Oler
patent: 3282411 (1966-11-01), Jardine
patent: 3466836 (1969-09-01), Pratt
patent: 3782066 (1974-01-01), Schmitt
patent: 3800497 (1974-04-01), Pearson
patent: 3904166 (1975-09-01), Wadsworth
patent: 4232048 (1980-11-01), Palm

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