B - Operations – Transporting – 67 – D
Patent
B - Operations, Transporting
67
D
210/45, 206/73,
B67D 3/00 (2006.01) B65D 47/08 (2006.01)
Patent
CA 1121310
ABSTRACT OF THE DISCLOSURE A complete closure including a closure member formed as a bottle cap or integrally with a container and a lid connected to the closure member by a hinge or hinge-type structure may be constructed so as to utilize a spring structure and a cam structure serving to cooperate to hold the lid in either a closed position in which the lid covers an opening through the closure member or an open position in which the lid is spaced significantly from the opening. Preferably the complete closure is formed as an integral unit out of a polymer such as polypropylene in such a manner that the spring structure consists of upstanding resilient posts on the top of the closure member and so that the cam structure consists of substantially non-bending or rigid portions of the lid which are located so as to contact and deform the posts during movement of the lid. The complete closure is considered quite desirable because of its effectiveness and because it can be manufactured at a very nominal cost using straight pull injection molding dies to form the operative parts of the lid and the closure member.
338870
Hazard Robert E.
Wilson Woodrow S.
Borden Ladner Gervais Llp
Polytop Corporation
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