Brakes – Operators – Fluid pressure
Patent
1978-10-30
1979-11-13
Halvosa, George E. A.
Brakes
Operators
Fluid pressure
60590, 91 29, 91 31, 91443, 92143, 188364, 192109D, B60T 1110
Patent
active
041740262
ABSTRACT:
A drum brake assembly provides a pair of brake shoes which are movable by a hydraulic actuator to a braking position. The hydraulic actuator is carried by a backing plate and the pair of brake shoes is movable relative to the backing plate. A piston is slidably mounted within a bore on the hydraulic actuator and pressurized fluid communicated to the bore acts against the piston to move the piston and pair of brake shoes. A partition is also disposed within the bore to substantially define a secondary chamber which receives pressurized fluid from the bore. The partition is movably disposed within the bore and resiliently engaged with the piston so that increased pressure within the bore is transmitted to the piston via the partition and the resilient engagement. Moreover, the partition controls venting of the secondary chamber so that upon contact of the pair of brake shoes with a drum, backlash or retraction of the pair of brake shoes is limited.
REFERENCES:
patent: 2216848 (1940-10-01), Loweke
patent: 2329095 (1943-09-01), White
patent: 2585408 (1952-02-01), Roberson
patent: 2733780 (1956-02-01), Myers
patent: 3078676 (1963-02-01), Blair
Decker Ken C.
Halvosa George E. A.
Schoenle Paul D.
The Bendix Corporation
LandOfFree
Dash pot for a hydraulic actuator for a drum brake does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Dash pot for a hydraulic actuator for a drum brake, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dash pot for a hydraulic actuator for a drum brake will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2268823