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:
Sep. 21, 1976
Filed:
Apr. 01, 1975
Billy N Nilson, Mjolby, SW;
KeNova AB, Malmo, SW;
Abstract
A self-closing closure comprises two annular parts intended to be snapped together one of said parts being integral with a conical diaphragm having a central sleeve-shaped part with a discharge opening whereas the other one has radial spokes ending in a central part from which a stem projects. The end of said stem normally fills the opening of the sleeve and, to obtain an improved discharge function the end of the stem is substantially cylindrical and continues in a slightly conical part whereas the discharge opening has a cylindrical end portion smoothly continuing inwardly in a conical portion the inner envelope surface of the discharge opening being convex to establish a linear contact with the conical part of the stem. The end portion of the stem may be tubular.