Fluid-pressure and analogous brake systems – Multiple control – Double heading
Patent
1979-05-08
1981-05-05
Reger, Duane A.
Fluid-pressure and analogous brake systems
Multiple control
Double heading
303 71, B60T 1124
Patent
active
042654920
ABSTRACT:
A braking apparatus for vehicles has a switching device which controls the admission of pressure fluid to the braking cylinder of a service brake and is operated by a reaction force acting upon a coupling or bearing support between the switching device and a lever operatively connected to a parking or locking brake. When this reaction force exceeds a predetermined limit upon operation of the parking brake, the switching device is actuated to release the service brake. The service brake is released at that time when the parking brake already applies a braking force and the short period of time between the parking brake being locked and prior to release of the service brake is so short that the brake linkage of the service brake is not subjected to any damaging effects.
REFERENCES:
patent: 3294455 (1966-12-01), Valentine
patent: 3443839 (1969-05-01), Hinrichs et al.
patent: 4036533 (1977-07-01), Kraft
Jaskiewicz Edmund M.
Knorr-Bremse GmbH
Reger Duane A.
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