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:
Jun. 14, 1994
Filed:
May. 06, 1993
James R Jamrog, Novi, MI (US);
Ford Motor Company, Dearborn, MI (US);
Abstract
An automotive fuel tank filler pipe contains a two-piece tubular or hollow, opened ended, nested housing in which is fixed an essentially solid disk blocking the opening therethrough and containing a fuel nozzle opening therethrough closed by a spring biased sealing flap door, and including a pair of oppositely acting one-way vacuum-break and pressure relief valves for automatically controlling the pressure conditions in the fuel tank, the structure preventing the unwanted discharge of fuel vapors/liquid into the atmosphere in the event that the fuel cap or closure member normally closing the upper end of the fill pipe is accidentally left off or not replaced or damaged after a refueling operation.