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:
Nov. 08, 1996
Applicant:
Inventor:
Peter H Sheppard, Hanover, PA (US);
Assignee:
R. H. Sheppard Co., Inc., Hanover, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B62D / ;
U.S. Cl.
CPC ...
180432 ; 180441 ;
Abstract
A power steering system for on-the-road and off-the-road vehicles includes a positive displacement hydraulic power steering pump, a master power gear with a rotary valve and a slave power gear mounted in tandem with the master power gear. Heated return hydraulic fluid from the master power gear flows through a heat transfer passage in the slave power gear and is cooled.