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:
Sep. 22, 1981
Filed:
Jul. 25, 1979
Koichi Takahashi, Yokohama, JP;
Megumu Higuchi, Tokyo, JP;
Nissan Motor Company, Limited, Yokohama, JP;
Abstract
A rotary-motion directional fluid-flow control valve comprising an inner valve element rotatable about an axis therethrough and formed with concavities in its outer peripheral wall, an outer valve body rotatable about an axis aligned with the axis of rotation of the valve element and circumferentially slidable on the outer peripheral surface of the valve element, and plug members which are closely fitting in radial holes formed in the valve body and including a first plug member solid in its entirety and a second plug member formed with an axial bore, the first and second plug members being in registry with the concavities in the valve element in radial directions of the valve body depending upon the relative angular positions of the valve body and element. The valve may be advantageously use in a power-assisted steering system of an automotive vehicle.