Notched double seaming chuck

Details Notched double seaming chuck Notched double seaming chuck

1988-09-13

1991-12-10

Meislin, D. S.

Sheet metal container making

Apparatus applying closure to receptacle

Seamer

220276, 220277, 413 32, B21D 5126

Patent

active

050713027

ABSTRACT:
This relates to the double seaming of an end unit to a metal can body where the end unit is of the full opening, easy opening type incorporating a pull tab for the purpose of initiating a rupture followed by pull out of an end panel of the end unit. Most specifically, the end unit is of an oblong rectangular or generally other than round outline so as to have a fixed orientation with respect to a double seam forming double seaming chuck. By having a fixed relationship between each end unit and the double seaming chuck and the pull tab with respect to the configuration of the end unit, it is possible to form a notch in the underside of the double seaming chuck to clear the pull tab. This permits the pull tab to have a force applying nose thereof positioned closely adjacent to a chuck wall of the end unit so that it may overlie a score line or weakening line formed in the chuck wall radius between the chuck wall and the end panel.

REFERENCES:
patent: 2467154 (1949-04-01), Peterson, Jr.
patent: 2606515 (1952-08-01), Bryant
patent: 2711706 (1955-06-01), Gueffroy
patent: 3483355 (1969-12-01), Murdock
patent: 3855026 (1974-12-01), Fox et al.
patent: 3939789 (1976-02-01), Anders
patent: 4217843 (1980-08-01), Kraska
patent: 4455114 (1984-06-01), Zysset

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