Receptacles – Closures – Secondary closure within parameter of primary closure
Patent
1976-03-26
1978-03-28
Price, William
Receptacles
Closures
Secondary closure within parameter of primary closure
220 904, 220268, 222541, 229 7R, A47G 1922, B65D 4148
Patent
active
040811034
ABSTRACT:
Disclosed herein is a cover for drinking containers, such as coffee cups and the like, including a peripheral rim section adapted to fit snugly over the rim of the container, a resilient cover panel extending between the confines of the rim section to cover the container, a generally U-shaped cut or score line in the cover panel defining a correspondingly shaped flap having an outer edge portion located near the rim section, an an inner portion which is integrally connected to the main body of the cover panel main body, and raised reinforcing contours on the flap and on the cover panel main body including parallel spaced portions located adjacent the junction between the flap inner portion and the cover panel main body defining a transverse hinge axis for the flap, whereby the flap can be depressed relative to the cover panel to provide an opening in the cover panel for drinking from one side of the container and whereby the flap, upon being released, returns to a normal position where it substantially closes the opening.
The cover can be conveniently formed as a one-piece unit from a thin sheet of polymeric thermoplastic material, such as by vacuum forming, and the cut or score line thereafter made in the cover panel.
REFERENCES:
patent: 3076584 (1963-02-01), Sherlock
patent: 3227304 (1966-01-01), Asbury
patent: 3355058 (1967-11-01), Asbury
patent: 3362569 (1968-01-01), Geiger
patent: 3739976 (1973-06-01), MacDaniel
patent: 3927794 (1975-12-01), Erdman
Price William
Shoap Allan N.
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