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. 21, 1992
Filed:
Dec. 14, 1990
Applicant:
Inventors:
Masaaki Kato, Aichi, JP;
Yoshihito Imura, Aichi, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B62D / ;
U.S. Cl.
CPC ...
180132 ; 180149 ; 9137 / ; 7438 / ;
Abstract
In a hydraulic pressure switch mechanism connected between a steering shaft and a rack, an input shaft is covered with a balance sleeve, to form a sealing portion. The balance sleeve is covered with a valve outer spool, thereby forming a variable orifice. The hydraulic pressure switch mechanism requires no valve inner spool. The hydraulic pressure switch mechanism has a small and simple structure and provides secure hydraulic pressure control, thus contributing to reduction in manufacturing cost.