Fluid-pressure and analogous brake systems – Pulsation neutralizers
Reexamination Certificate
2007-03-20
2007-03-20
Burch, Melody M. (Department: 3683)
Fluid-pressure and analogous brake systems
Pulsation neutralizers
C303S117100, C303S116200, C303S011000
Reexamination Certificate
active
10899013
ABSTRACT:
A brake device comprises a brake cylinder, a reservoir, a pump, a master cylinder, and a pulsation-reduction device. The reservoir serves to accumulate a working liquid discharged from the brake cylinder. The pump serves to pump the working liquid accumulated within the reservoir. The master cylinder serves to receive the working liquid discharged from the pump. The pulsation-reduction device comprises a valve device disposed in a communication channel connecting the downstream side of the pump and the master cylinder. The valve device comprises a spool disposed within the communication channel. The spool is movable along the communication channel in response to differences in pressure between the pump side of the communication channel and the master cylinder side of the communication channel. The movement of the spool operates to open and close at least a part of the communication channel.
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Advics Co., Ltd.
Buchanan & Ingersoll & Rooney PC
Burch Melody M.
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