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. 19, 2016
Filed:
Jul. 11, 2013
Advics Co., Ltd., Kariya, JP;
Hiroshi Shimizu, Kariya, JP;
Shigemitsu Nohira, Kariya, JP;
ADVICS CO., LTD., Kariya, Aichi-Pref, JP;
Abstract
A braking device for a vehicle includes a cylinder, a master piston having a pressure applying piston portion and a servo pressure receiving portion, an input piston, a pressure accumulating device, a pilot pressure generating device, and a regulator having a first piston slidably fitted into a housing and dividing an inside of the housing into a first pilot chamber and a servo pressure generating chamber, a valve mechanism connecting the servo pressure generating chamber with the pressure accumulating device or a reservoir in response to movement of the first piston, and a second piston fitted into the housing and dividing the inside of the housing into the first pilot chamber and a second pilot chamber, wherein the second piston is formed so that an end surface thereof exposed to the first pilot chamber has a larger pressure-receiving surface area than an end surface exposed to the second pilot chamber.