Unitary beverage container

Receptacles – Closures – With closure opening arrangements for means

Patent

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Details

220276, B65D 4132

Patent

active

039359611

ABSTRACT:
A unitary beverage container lid allows easy opening and drinking therefrom without the generation of removable parts. The lid, which may be integrally formed with the cylindrical sidewall of the container, incorporates a generally dome-shaped central portion incorporating a pair of radially projecting abutting ribs. The line defining the adjoining edges of these ribs is scored for easy tearing. The dome-shaped central portion terminates with a downwardly, inwardly projecting peripheral sidewall that is sealed to or integrally formed with the cylindrical sidewall of the container. An upstanding arcuate rib with tapered ends forms a portion of the terminating region between the central portion and the peripheral sidewall and is scored by an arcuate score line.
Initial depression of a centrally located button on the dome-shaped portion of the lid causes the tapered rib to tear from the sidewall of the lid, thereby initiating the separation of the two abutting ribs. Further depression of the button completes this tearing along the score line of the two abutting ribs and the tapered arcuate rib thereby generating a pie-shaped drinking orifice in the lid.

REFERENCES:
patent: 3246791 (1966-04-01), Asbury
patent: 3262611 (1966-07-01), Palmer
patent: 3307746 (1967-03-01), Edwards
patent: 3334775 (1967-08-01), Klein
patent: 3759206 (1973-09-01), Dalli
patent: 3779417 (1973-12-01), Klein
patent: 3794206 (1974-02-01), DeLine
patent: 3843011 (1974-10-01), Perry

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