Receptacles – Closures – Removable closure guided in rotary movement
Patent
1995-12-11
1998-01-27
Shoap, Allan N.
Receptacles
Closures
Removable closure guided in rotary movement
220 412, 220304, 220484, 220377, 220378, B65D 406, B65D 9010
Patent
active
057114498
ABSTRACT:
A closure assembly for attachment to a vessel having an opening ring of a vessel and a closing cover cooperating with the ring and including a large diameter base end attached to the vessel and a small diameter ring end to receive a removable cover thereover. The cover end includes a plurality of spaced inwardly protruding locking lugs having a lower surface slightly inclined and the cover includes a perimeter ring flange, having a first downwardly depending skirt spaced closely adjacent and inwardly from the ring locking lugs and a second downwardly depending skirt spaced outwardly therefrom. The first skirt has outwardly protruding locking lugs spaced downwardly from the ring flange and having a slightly inclined upper surface to wedgingly mate with respective lower surfaces of the ring locking lugs. The cover has an interior surface between the first and second skirts and a D-ring seal located between the flanges on the interior surface for contacting and being compressed by the small diameter ring end.
REFERENCES:
patent: 1923481 (1933-08-01), Ford
patent: 2056947 (1936-10-01), Baechle
patent: 2661862 (1953-12-01), Howe
patent: 2867350 (1959-01-01), Fleckenstein
patent: 3322432 (1967-05-01), Soguel
patent: 4667449 (1987-05-01), Keating et al.
patent: 4936705 (1990-06-01), Schneider
patent: 5017044 (1991-05-01), Sharp
patent: 5246133 (1993-09-01), James
Newhouse Nathan
Petroleum Containment, Inc.
Shoap Allan N.
Yeager Arthur G.
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