Container end member with an integral hinged opening tab having

Details Container end member with an integral hinged opening tab having Container end member with an integral hinged opening tab having

1977-05-25

1978-03-28

Hall, George T.

Receptacles

Closures

With closure opening arrangements for means

220271, B65D 4132

Patent

active

040811042

ABSTRACT:
A one piece container end member of metallic sheet material having an exterior rim portion for mounting on an open ended container member; a central wall portion surrounded by the exterior rim portion and extending generally radially inwardly relative thereto for closing the open end of the container body member; an integral inwardly severable and displaceable tab portion in the central wall portion extending generally radially inwardly from the exterior rim portion; the tab portion being hingedly integrally connected to the central wall portion by a generally arcuately extending hinge portion; the tab portion being defined by at least one continuous score groove extending from arcuately spaced points adjacent the interior rim portion on opposite sides of the hinge portion generally radially inwardly therefrom toward the central axis of the container end member with intermediate score groove portions extending along substantially straight lines and being connected adjacent the central axis by a curved intermediate score groove portion; the tab portion within the score groove having indentation means in the form of a continuous formed wall portion extending generally transversely thereto and defining a flat wall portion therewithin, which have a first generally circular section next adjacent the hinge area and a second circular section next adjacent the central axis and a pair of curved connected sections extending therebetween.

REFERENCES:
patent: 3929251 (1975-12-01), Urmston
patent: 3982657 (1976-09-01), Keller et al.

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