Tabless container opening device and method and tools for formin

Details Tabless container opening device and method and tools for formin Tabless container opening device and method and tools for formin

1974-05-02

1976-03-30

Larson, Lowell A.

113121C, B21D 5140

Patent

active

039466833

ABSTRACT:
A tabless container opening device of work hardened metal having at least one substantially rigid inwardly displaceable opening panel bounded by a weakening line which includes a fracturable web and having an outwardly projecting deflectable portion in the container wall adjacent the weakening line around the opening panel is formed between first and second die members which displace metal in a container wall to form the weakening line and additionally coin the container wall along a zone adjacent one side of the weakening line.

REFERENCES:
patent: 3227304 (1966-01-01), Asbury
patent: 3406866 (1968-10-01), Jasper
patent: 3426714 (1969-02-01), Boik et al.
patent: 3576272 (1971-04-01), Colby
patent: 3610463 (1971-10-01), Brown
patent: 3687099 (1972-08-01), Franek
patent: 3715052 (1973-02-01), Kinkel
patent: 3848557 (1974-11-01), Holk, Jr.

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