The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 18, 2000
Filed:
Mar. 28, 1997
Randall G Bush, Evansville, IN (US);
Kent A Johnson, Evansville, IN (US);
Rexam Plastics, Inc., Evansville, IN (US);
Abstract
A self-sealing, tamper-evident closure including a cap body and an integrally-formed gasket valve is provided for use on a container. The cap body includes a tab integrally molded onto a removable frangible portion which breaks away from the cap body and exposes a self-sealing, flexible gasket valve. The gasket valve is molded in place on an inner surface of the cap body and includes a longitudinal slit to provide a dispensing orifice. A method for making a closure of the present invention is also disclosed, wherein an integral cap body is formed by injection molding, a quantity of liquid gasket material is deposited within a pocket formed on the cap body, a flexible gasket valve is formed by the liquid gasket valve material curing in place within the pocket and a longitudinal slit is imposed through the gasket valve to provide a dispensing orifice.