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:
May. 11, 1993
Filed:
Jul. 02, 1992
Applicant:
Inventor:
Robert A Roth, Grand Blanc, MI (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D / ;
U.S. Cl.
CPC ...
415 551 ;
Abstract
An open-vane impeller for a regenerative turbine fuel pump for motor vehicles, the impeller including a hub having an outer cylindrical ring, a first stage of open-vane impeller vanes extending radially out from the outer ring, and a second stage of open-vane impeller vanes extending radially out from the outer ring in side-by-side and phase shifted relationship to the first stage of open-vane impeller vanes.