Receptacles – Closures – Secondary closure within parameter of primary closure
Patent
1998-02-26
1999-07-27
Shoap, Allan N.
Receptacles
Closures
Secondary closure within parameter of primary closure
220281, 220283, 220833, 220837, 220259, B65D 5118
Patent
active
059275359
ABSTRACT:
An improved child-resistant plastic safety closure for containers has a depending skirt on it for attaching the closure to the top of a container. The top of the closure has an opening through it, which extends over a major portion of the total area of the top. A lid with upper and lower surfaces is hinged at one edge of the opening in the top for closing the opening. Tongue-and-groove inter-engagement members between the lid member and the top, around at least part of the periphery of the opening, hold the lid closed in the opening. Diametrically-opposed, spaced-apart first and second fulcrum extensions are located on opposite sides of the opening a predetermined distance from the hinged edge of the lid member; and these fulcrum extensions are located below the lower surface of the lid member when it is closed in the opening. The fulcrum extensions protrude only a short distance into the space of the opening; and whenever a predetermined pressure is placed on the lid member in the region between the hinged edge and the first and second fulcrum extensions, the lid member flexes about a secondary hinge and raises the edge opposite the hinged edge above the top of the closure to permit that edge to be grasped and raised to pivot the lid away from the opening. This exposes the full area of the opening through the top; so that the contents of the container readily may be removed.
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Hylton Robin A
Ptak LaValle D.
Shoap Allan N.
Top Seal Corporation
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