Dispensing closure employing living hinge with cams to momentari

Details Dispensing closure employing living hinge with cams to momentari Dispensing closure employing living hinge with cams to momentari

1984-09-11

1986-12-02

Rolla, Joseph J.

Dispensing

With resilient biasing means for outlet element

For pivoted and swingable elements

222546, 215235, B65D 4700

Patent

active

046258981

ABSTRACT:
An integrally molded, unitary, plastic dispensing closure comprising a body, a lid, and a "living" hinge that joins the lid to the body. Cams and cooperating wall surfaces in the vicinity of the hinge provide forces that temporarily deform the hinge, within its plastic limits, and facilitate the movement of the lid to either an opened, or a closed, position. In one embodiment, recesses are formed at the rear of the closure body to accommodate the cams when the closure is in its closed position. In another embodiment, recesses are formed in the skirt of the lid to accept upwardly extending posts, and a cavity is defined in the upper surface of the closure body to accept cams, or lugs, depending below the lid. An efficient, aesthetically pleasing, low profile dispensing closure is achieved in each instance.

REFERENCES:
patent: 4158902 (1979-06-01), Chernack et al.
patent: 4220248 (1980-09-01), Wilson et al.
patent: 4377247 (1983-03-01), Hazard et al.

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