B - Operations – Transporting – 60 – T
Patent
B - Operations, Transporting
60
T
303/70
B60T 15/00 (2006.01) B60T 13/26 (2006.01) B60T 15/02 (2006.01) B60T 17/18 (2006.01)
Patent
CA 1111467
ABSTRACT OF THE DISCLOSURE A two knob control for tractor and trailer parking brakes providing single knob application of both tractor and trailer parking brakes. It also provides for maintaining the tractor parking brakes in the applied condition while charging the trailer brake air system and for applying the trailer brakes independently of the tractor brakes. Automatic appli- cation of trailer parking brakes is provided upon trailer breakaway or a significant reduction in tractor reservoir air pressure. - 1 -
319463
Macrae & Co.
Wagner Electric Corporation
LandOfFree
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