Trailer anti-theft device

Details Trailer anti-theft device Trailer anti-theft device

B - Operations, Transporting

60

R

B60R 25/08 (2006.01) B60T 7/20 (2006.01)

Patent

CA 2548801

Herein disclosed a theft prevention system for trailers using the customary pneumatic trailer braking system having spring applied parking brakes that apply when in absence of in an air pressure supply line to the trailer. A normally closed solenoid valve is connected in series with the pressurized air supply line that supplies air to release the trailer parking brakes and a keypad/transmitter on the trailer body must be caused to actuate the solenoid valve to release the trailer parking brakes. The solenoid valve is preferably provided with a pneumatic latch so that the parking brakes will remain released as long as air pressure is provided to the trailer once the system is disarmed properly, by an authorized operator, by appropriate security means to prevent unauthorized use wich may be key pad for entry of an identification number.

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