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:
Oct. 13, 1981
Filed:
Sep. 21, 1979
Applicant:
Inventors:
Paul O Wendler, Saginaw, MI (US);
Clarence E Welsh, Merrill, MI (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F15B / ;
U.S. Cl.
CPC ...
9137 / ; 7442 / ;
Abstract
Power steering gear with integral rotary valve for directing hydraulic pressure fluid to and from a hydraulically actuated rack piston nut drivingly connected to an output and in which an internal spring device effectively reduces lash in the threaded connection between the worm and rack piston nut so that the valve components will be immediately relatively rotated on stub shaft input from the handwheel for improved and quicker valve response.