US 5,165,560 A · Nonrotating hermetically sealed closure for bottle containing liquid

Abstract

A hermetically sealed, nonrotatable closure for a bottle having a cylindrical body containing liquid and having an integral tubular neck formed with a free open end, comprises an annular flange on the tubular neck. A flexible stopper mounts on the flange. A cup shaped cap has a flat top wall with peripherally integral pliable skirt in which is an internal beveled ridge. The ridge engages the flange to lock the cap on the neck of the bottle. The top wall of the cap has a central hole to expose the stopper which can be pierced by a hypodermic needle to extract the liquid from the bottle while the cap remains unbroken on the neck of the bottle. Inside the skirt of the cap are circumferentially spaced teeth which engage in circumferential slots in the annular flange to cooperate with the ridge in preventing axial movement on the cap and stopper on the bottle. Radial webs separate the slots in the annular flange and engage in stalls defined by flat radial walls of the spaced teeth to prevent the cap and stopper from rotating on the tubular neck of the bottle.

Claims10

Dependent claims

A hermetically sealed closure for a bottle having a cylindrical body containing a liquid and having an integral tubular neck formed with a free open end, and an annular flange having a flat top surrounding and integral with said open end of said neck, said flange having a cylindrical side wall, said closure comprising:

a flexible flat stopper on said flange;
a cup shaped cap on said stopper and flange, said cap having a flat circular top wall peripherally integral with a pliable cylindrical skirt, said skirt having an outside diameter larger than said flange and an open bottom end section with an inside diameter slightly less than that of said cylindrical side wall of said flange, and having an internal beveled annular ridge extending from said bottom end section and tapering inwardly from said open bottom end section toward said top wall of said cap;
and
mutually engaging means on said skirt of said cap and said side wall of said flange for preventing rotation of said cap;
whereby said cap locks on said stopper and said flange with said ridge engaged under said flange when said (neck) flange is inserted into said open end of said skirt and said cap is forced down on said flange and said mutually engaged means on said cap and said flange cooperate with said ridge to prevent said cap and stopper from respective rotation and axial movement on said bottle.

2 more elements

Dependencies are inferred from the claim text.

Nonrotating hermetically sealed closure for bottle containing liquid

Life of this patent

Nonrotating hermetically sealed closure for bottle containing liquid

Life of this patent

Abstract

Claims10