Abstract A substantially leak-proof and child-resistant combination closure comprising a container and a cap. The container has a threaded neck and the cap has a tubular skirt with mating threads on its inner surface, a disc-like top and resilient annular shoulder portion. There is a sealing liner beneath the top of the cap which engages and seals the open end of the container neck. The cap skirt and the container have cooperating locking means which are engaged when the cap is turned down to normal closed position. The locking means function both to render the closure child-resistant and to stop the relative rotation of the cap onto the container at a predetermined angular position where the locking means is effective. The resilient shoulder of the cap flexes to compensate for tolerance variations in the threads of the cap and container neck in order to insure that the cap liner seals the neck of the container.
A substantially leak-proof and child-resistant closure combination, said combination comprising a. a container having a tubular neck, a hollow body and a generally inwardly extending shoulder between the upper portion of said body and the base of said neck, b. a one-piece cap for said container, said cap having a tubular skirt, a disc-like top and a resilient annular shoulder portion means connecting said skirt and said top, c. a disc-like liner beneath said cap top and engageable with the end of said container neck for sealing said neck, d. means comprising mating threads on said neck and said cap skirt for retaining said cap on said neck, e. and cooperating locking means on said cap skirt and said container shoulder engageable when said cap is rotated to normal closed position relative to said neck and for preventing rotation beyond normal closed position f. said shoulder portion means being stretchable for downward movement of said tubular skirt for compensating for tolerance variations in said threads, and between said threads and said locking means.
Claim 2
Dependent Claim
173 words
A substantially leak-proof and child-resistant closure combination, said combination comprising a. a container having a tubular neck, a hollow body and a generally inwardly extending shoulder between the upper portion of said body and the base of said neck, b. a one-piece cap for said container, said cap having a tubular skirt, a disc-like top and a resilient annular shoulder portion means connecting said skirt and said top, c. a disc-like liner beneath said cap top and engageable with the end of said container neck for sealing said neck, d. means comprising mating threads on said neck and said cap skirt for retaining said cap on said neck, e. and cooperating locking means on said cap skirt and said container shoulder engageable when said cap is rotated to normal closed position relative to said neck and for preventing rotation beyond normal closed position f. said shoulder portion means being stretchable for downward movement of said tubular skirt for compensating for tolerance variations in said threads, and between said threads and said locking means.
Claim 3
Dependent Claim
41 words
A combination according to claim 1 in which the cooperating child-resistant locking means comprise a tab on the lower edge of the cap skirt and a pair of angularly spaced stops on the shoulder of the container engageable by said tab.