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:
Apr. 13, 2010
Filed:
Aug. 28, 2007
Takato Ogiwara, Kanagawa, JP;
Takayuki Kinoshita, Kanagawa, JP;
Naganori Koshimizu, Kanagawa, JP;
Tomonori Mouri, Kanagawa, JP;
Takato Ogiwara, Kanagawa, JP;
Takayuki Kinoshita, Kanagawa, JP;
Naganori Koshimizu, Kanagawa, JP;
Tomonori Mouri, Kanagawa, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A master cylinder designed to facilitate an operation of assembling and adjusting a check valve is provided. A supply passage for supplying operating fluid from a reservoirto a pressure chamberis formed in a cylinder bodyconnected to the reservoir. A bypassfor bypassing the supply passage connecting the reservoirand the pressure chamberis formed and provided with a check valve systemadapted to open when a pressure in the pressure chamberis lower than that in the reservoir. A valve caseand a covering memberconstitute a cartridge, which accommodates a valve bodyand an urging spring, so as to form a check valve system. The cartridgeis placed in a valve chamberof the bypass