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. 14, 2009
Filed:
Nov. 28, 2006
Yasutoshi Nagatsuyu, Minami-ALPS, JP;
Tomonori Mouri, Kai, JP;
Takato Ogiwara, Minami-ALPS, JP;
Naganori Koshimizu, Kai, JP;
Yasutoshi Nagatsuyu, Minami-ALPS, JP;
Tomonori Mouri, Kai, JP;
Takato Ogiwara, Minami-ALPS, JP;
Naganori Koshimizu, Kai, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A master cylinder including a cylinder body having a tubular shape with a closed end; and a piston having one side slidably inserted into the cylinder body and another side that projects from the cylinder body. The piston and the cylinder body define a pressure chamber for generating hydraulic pressure. The master cylinder also includes a protecting member for covering the side of the piston projects from the cylinder body. The protecting member is adapted to extend and contract, and limit backward movement of the piston.