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. 20, 1977
Filed:
May. 11, 1976
Minoru Kawabata, Chita, JA;
Kenji Takahashi, Kariya, JA;
Toyoda-Koki Kabushiki-Kaisha, , JA;
Abstract
A servo valve device in a power steering apparatus of a vehicle, which has a main valve member provided with two valve chambers and disposed to rotate in response to one of the action of a fluid pressure motor supplementing manual steering torque and a manual steering torque, and which has two flap valve members respectively located in the two valve chambers and disposed to rotate in response to the other of the action of the fluid pressure motor and the manual steering torque for controlling fluid under pressure for the fluid pressure motor. The two valve chambers are formed by fluid-tightly partitioning an axial slot formed within the main valve member at a plane containing the rotational axis thereof, and the two flap valve members are integrally formed with each other.