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:
Mar. 22, 1977
Filed:
Sep. 10, 1975
Ronald F Ewald, Rolling Meadows, IL (US);
Seaquist Valve Company, Div. of Pittway Corporation, Cary, IL (US);
Abstract
A double seal valve stem comprising a substantially tubular elongated upper portion having a cylindrically shaped cavity communicating with at least one dispensing port extending through the side wall thereof and an enlarged substantially cylindrical lower portion including an annular beveled upper portion to form an annular groove therebetween such that when operatively assembled within an aerosol dispenser the side wall of the upper portion and the beveled surface of the lower portion seal against a sealing ring gasket arranged in the turret of the mounting to form a double seal.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile