초록 ▼

An anti-theft system prevents release of the brakes of a tractor/trailer land vehicle after the manual brake control has been set and after the anti-theft system has been activated. With the anti-theft system activated, any attempt to release the brakes of the vehicle will not be successful and will

An anti-theft system prevents release of the brakes of a tractor/trailer land vehicle after the manual brake control has been set and after the anti-theft system has been activated. With the anti-theft system activated, any attempt to release the brakes of the vehicle will not be successful and will activate an alarm. The anti-theft system cannot be activated until after the manually operated brake control has been activated. The anti-theft system can be applied to the brakes of either or both the tractor and/or the trailer of the vehicle.

대표청구항 ▼

[ I claim:] [11.] An anti-theft mechanism for use on a motor vehicle comprising:A) a manually operated air brake system for stopping rotation of at least one road engaging wheel of a vehicle when applied and a signal transmitter which generates a signal when said manually operated air brake system i

[ I claim:] [11.] An anti-theft mechanism for use on a motor vehicle comprising:A) a manually operated air brake system for stopping rotation of at least one road engaging wheel of a vehicle when applied and a signal transmitter which generates a signal when said manually operated air brake system is applied;B) an anti-theft system on the vehicle which includes(1) an alarm, and(2) a port in an air line of said brake system for controlling operation of said brake system with said brake system being applied and released by placing said port in a brake system applying or releasing condition;C) a remote activating system for activating said anti-theft system from a location remote from the vehicle after the manually operated air brake system has been applied;D) an interlock system for preventing activation of said anti-theft system until after said manually operated brake system is applied; andE) means in said remote activating system for activating the alarm of said anti-theft system if said manually operated brake system is disengaged before de-activation of said anti-theft system and for maintaining the port of said brake system in a brake system applying configuration until after de-activation of said anti-theft system and including a signal receiver in said remote system responsive to a signal generated by said signal transmitter for moving said port into a brake system releasing configuration upon receiving the signal generated by said signal transmitter that said manually operated brake has been applied.