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:
May. 07, 2013
Filed:
Sep. 22, 2011
Takenori Sumiya, Utsunomiya, JP;
Moriyoshi Awasaka, Shioya-gun, JP;
Yuya Yamazaki, Utsunomiya, JP;
Hirotaka Otaki, Utsunomiya, JP;
Takenori Sumiya, Utsunomiya, JP;
Moriyoshi Awasaka, Shioya-gun, JP;
Yuya Yamazaki, Utsunomiya, JP;
Hirotaka Otaki, Utsunomiya, JP;
Keihin Corporation, Tokyo, JP;
Abstract
A fluid passage valve is equipped with a valve body which is disposed rotatably through first and second shafts, a movable seat having a communication hole therein, and an elastic member that urges the movable seat toward a side opposite from the valve body. The first and second shafts are assembled and installed on the valve body such that an axis thereof is disposed at a position offset from a center of curvature of a spherical surface portion of the valve body. The fluid passage valve is placed in a valve-closed condition by the spherical surface portion abutting against a seating surface and closing the communication hole, and is placed in an open condition by the valve body separating away from the movable seat and thereby opening the communication hole.