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:
Jul. 04, 1989
Filed:
Feb. 01, 1988
Applicant:
Inventors:
Assignee:
Nissan Motor Co., Ltd., Yokohama, JP;
Primary Examiner:
Int. Cl.
CPC ...
F15B / ;
U.S. Cl.
CPC ...
13762521 ; 9137 / ;
Abstract
A rotary type power steering control valve comprises a groove arrangement which includes two first grooves spaced longitudinally along a longitudinal axis, and a second longtudinally extending groove which has one circumferential side overlapping the two first grooves to define two variable flow orifices. The direction of fluid is reversed by the second longitudinally extending groove so that both of the variable flow orifices are arranged in series.