Tab system

Details Tab system Tab system

1978-07-21

1979-07-31

Hall, George T.

Receptacles

Closures

With closure opening arrangements for means

B65D 4132

Patent

active

041627431

ABSTRACT:
A method of manufacturing a tab (43) of the type attachable to an easy-open contained wall to initiate severance of a tear panel of the contained wall, including an initial step of placing a protruding stitch (45) in a sheet metal strip (47) from which the tab is to be formed. Thereafter, a tab blank (51) is cut in the strip of sheet metal, with this cut starting and ending immediately adjacent to opposite sides of the stitch, but the cutting die is separated slightly from the stitch. Thereafter, the outer periphery (61) of the tab blank is curled onto the inner surface of the tab blank. The stitch is then severed adjacent the tab.

REFERENCES:
patent: 3977561 (1976-08-01), Strobe et al.
patent: 4024981 (1977-05-01), Brown

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