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:
Jan. 19, 1982
Filed:
Aug. 19, 1980
Applicant:
Inventors:
Tadataka Narumi, Kariya, JP;
Akihiko Sato, Okazaki, JP;
Assignee:
Toyoda Koki Kabushiki Kaisha, Kariya, JP;
Primary Examiner:
Int. Cl.
CPC ...
F04B / ;
U.S. Cl.
CPC ...
137117 ; 180143 ; 417300 ;
Abstract
A valve system in a power steering system is disclosed. It includes a spool valve which is slidably located in a valve bore for by-passing an excess fluid at high vehicular speed in response to the pressure differential across an orifice. A control rod is slidably located in the spool valve and has at the end a metering portion for maintaining a limited flow volume when the spool valve is moved to close a by-pass port with the increase of a working pressure in the power steering system.