Device for the hydraulic actuation of a parking brake and...

Details Device for the hydraulic actuation of a parking brake and... Device for the hydraulic actuation of a parking brake and...

2007-09-11

2007-09-11

Nguyen, Xuan Lan (Department: 3683)

Brakes

Wheel

Axially movable brake element or housing therefor

C188S071900

Reexamination Certificate

active

11174379

ABSTRACT:
A parking and emergency brake device having an actuating device (10) that is supplied with pressurized fluid wherein a piston (14) slides in a cylinder (12, 22) to axially delimits a front hydraulic pressure chamber (16) and exert a determined mechanical force on an operating member over an actuating travel and a valve (18) to selectively place the front pressure chamber (16) in communication with a pressurized hydraulic fluid supply port (20). The valve (18) is interposed between the piston (14) and the cylinder (12) to controlled by an axial movement of the piston (14) over a control travel prior to actuating travel.

REFERENCES:
patent: 3372623 (1968-03-01), Wearden et al.
patent: 3842949 (1974-10-01), Newstead
patent: 5148894 (1992-09-01), Eddy, Jr.
patent: 6186284 (2001-02-01), Sauter et al.
patent: 6575270 (2003-06-01), Farenden

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