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. 20, 1977
Filed:
Mar. 08, 1976
William B Hansel, Media, PA (US);
Suntech, Inc., St. Davids, PA (US);
Abstract
A valve system for the vapor receiving system of a gasoline dispensing nozzle which acts to prevent the flow of liquid gasoline into the vapor return line in the event that the automatic shut-off system of the nozzle fails to turn the nozzle off. The valve system has a valve seat located at the point where the vapor return line connects to the vapor receiving system and a floating member suspended below the valve seat in such a manner that when the vapor receiving chamber fills with gasoline, the floating member covers the valve seat so that no gasoline flows back through the vapor return line. A shield can also be provided to prevent closure of the floating member by the normal flow of vapors.