B - Operations – Transporting – 60 – T
Patent
B - Operations, Transporting
60
T
303/86
B60T 7/00 (2006.01) B60T 13/26 (2006.01) B60T 13/66 (2006.01)
Patent
CA 2020622
ABSTRACT OF THE DISCLOSURE A fluid pressure braking system for a vehicle having service brakes and spring activated parking brakes includes electropneumatic activators for effecting and holding a limited service brake application while the driver leaves the vehicle to make a route pick-up. Accordingly, the spring brakes are not used during route pick-ups, thereby increasing the life of the spring actuator since it is not repeatedly cycled. An electropneumatic interlock automatically effects a parking brake application if the vehicle ignition is switched off while an electropneumatic service actuation is effected.
Cramer Kenneth L.
Eberling Charles E.
Alliedsignal Inc.
Cramer Kenneth L.
Eberling Charles E.
Macrae & Co.
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