Receptacles – Closures – With closure opening arrangements for means
220270, 220 72, B65D 4132
Shown is an easy open closure for a container wherein there is a ring-pull tab held by an integral rivet to the central circular recessed panel of the closure. The tab however, rests on a raised portion of that panel which portion includes various areas of weakening and strengthening and a displaceable panel therein defined by a score line. The raised portion positions the tab to protect it against abuse loadings due to handling and shipping full containers having the closure. About the periphery of the central circular panel is a stepped wall portion except near the area of the score line for the displaceable panel where the wall is unstepped.
patent: 3957172 (1976-05-01), Hasegawa
patent: 4210257 (1980-07-01), Radtke
patent: 4219127 (1980-08-01), Bielicki
patent: 4361251 (1982-11-01), Langseder et al.
patent: 4387827 (1983-06-01), Ruemer, Jr.
Wilkinson Harlen E.
Wren Fred W.
American Can Company
Audet Paul R.
Man-Fu Moy Joseph
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