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:
Oct. 17, 2006
Filed:
Sep. 08, 2004
Shigemitsu Nohira, Toyota, JP;
Shigemitsu Nohira, Toyota, JP;
Advics Co., Ltd., Aichi, JP;
Abstract
A center valve for a master cylinder includes a valve body and a valve seat fitted in a valve casing. The valve seat has an elastic tube fitted on a core member. The elastic tube has a front end portion adapted to be pressed against the rear end face of the valve body, and a rear cylindrical portion. A gap is provided behind the cylindrical portion of the elastic tube. When the front end of the elastic tube is deformed, the cylindrical portion of the tube is also deformed in such a way as to fill or protrude into the gap. Because the rear cylindrical portion is also deformed, the degree of deformation of the front end is suppressed. This prevents the front end of the tube from getting trapped between the valve body and the core member of the valve seat and thus getting torn.