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. 12, 1977
Filed:
Sep. 04, 1975
Janis Dumpis, St. Ann, MO (US);
Grenville G Sutcliffe, Villa Ridge, MO (US);
Husky Corporation, Pacific, MO (US);
Abstract
A fuel dispensing nozzle has a diaphragm responsive to vacuum for shutting off the flow of fuel through the nozzle, the diaphragm chamber normally being vented to atmosphere by a tube extending to the mouth of the spout and closable by fuel in the tank being filled to cause vacuum to actuate the diaphragm and shut off the fuel-flow through the nozzle, and a normally open valve in the vent tube, a piston for closing the vent tube valve in response to vapor pressure in the tank being filled, and conduit means providing vapor communication between the piston and the interior of the tank, whereby to shut off the flow of fuel through the nozzle when predetermined vapor pressure occurs in the tank being filled.