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. 22, 1998
Filed:
Jul. 09, 1997
Charles H Tuckey, Sand Point, MI (US);
David E Mroczka, Cromwell, CT (US);
Laurie J Swanson, Waterford, CT (US);
Walbro Corporation, Cass City, MI (US);
Abstract
For a fuel pump mounted within a module in a vehicle fuel tank, a stand pipe is provided in communication at its upper end with a return fuel reservoir and at its lower end with the inlet of the fuel pump to deliver fuel from the return fuel reservoir when the level of fuel in the reservoir rises above the upper end of the stand pipe. The return fuel reservoir has an inlet in communication with a fuel return line through which excess fuel in the fuel system is delivered to the return fuel reservoir. This 'weathered' return fuel is delivered to the fuel pump inlet through the stand pipe when the level of fuel in the reservoir is sufficiently high to prefer use of the weathered return fuel by the fuel pump.