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:
Aug. 02, 1983
Filed:
Jan. 22, 1980
Applicant:
Inventors:
Karl-Heinz Liebert, Schwabisch Gmund, DE;
Werner Tischer, Bobingen, DE;
Assignee:
Zahnradfabrik Friedrichshafen, AG., Friedrichshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B62D / ;
U.S. Cl.
CPC ...
60384 ; 13762524 ; 418 / ;
Abstract
Maximum angular displacement between the rotatable valve elements of a steering control valve is governed solely by the circular pitch of the piston gear associated with the metering gear pump in a hydrostatic fluid power steering system. A pair of fluid collecting manifolds in the control valve respectively communicate with the expanding and contracting pockets in the gear pump to form part of the flow paths between the gear pump and the fluid power steering motor.