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. 27, 2015
Filed:
Mar. 30, 2012
Yoshihiro Miyata, Anjyo, JP;
Shigemitsu Nohira, Kariya, JP;
Yoshihiro Miyata, Anjyo, JP;
Shigemitsu Nohira, Kariya, JP;
ADVICS CO., LTD., Aichi-ken, JP;
Abstract
A fluid pressure booster and a fluid pressure brake apparatus having the fluid pressure booster are provided. The fluid pressure booster includes an auxiliary fluid pressure source including a power-operated pump and a pressure accumulator, a pressure adjusting device which adjusts fluid pressure supplied from the auxiliary fluid pressure source to a value corresponding to an operating amount of a brake operation member by displacement of a spool valve and introduces the adjusted fluid pressure into a boost chamber, a boost piston which receives the fluid pressure introduced into the boost chamber to generate assist force and operates a master piston of a master cylinder by assisted force, and a damper chamber which communicates with one or both of the boost chamber and a pressure chamber of the master cylinder.