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. 15, 2003
Filed:
Jan. 09, 2001
Applicant:
Inventor:
Joseph M. Ross, Millington, MI (US);
Assignee:
Walbro Corporation, Cass City, MI (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D 5/00 ;
U.S. Cl.
CPC ...
F04D 5/00 ;
Abstract
A regenerative type electric motor fuel pump has a vapor vent passage disposed outside of a fuel pumping channel and communicating the fuel pumping channel with the exterior of the fuel pump to vent fuel vapor from the fuel pumping channel. The vapor vent passage extends through one of a pair of end plates between which a pump impeller is received for rotation. Preferably, the vapor vent passage communicates with the fuel-pumping channel through a connecting slot in the end plate.