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:
Jul. 16, 2002
Filed:
May. 16, 2001
Nissin Kogyo Co., Ltd., Nagano-Ken, JP;
Abstract
In a proportional booster valve V, a primary reaction piston and a secondary reaction piston are provided between a control piston which faces at one end thereof toward a control pressure chamber into which hydraulic pressure outputted from a primary master cylinder is inputted a boost pressure chambers connected to secondary master cylinders, the primary reaction piston being adapted to transmit at all times to the control piston a reaction force corresponding to hydraulic pressure of the boost pressure chamber the secondary reaction piston being adapted to transmit to the control piston a reaction force corresponding to the hydraulic pressure of the boost pressure chamber as the hydraulic pressure of the boost pressure chamber exceeds a set hydraulic pressure.