Anti-theft system for use on a tractor/trailer land vehicle

Details Anti-theft system for use on a tractor/trailer land vehicle Anti-theft system for use on a tractor/trailer land vehicle

1998-09-25

2000-12-26

Butler, Douglas C.

Fluid-pressure and analogous brake systems

Locks

303 15, B60T 1716

Patent

active

061647306

ABSTRACT:
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.

REFERENCES:
patent: 3885164 (1975-05-01), Vest
patent: 4691801 (1987-09-01), Mann et al.
patent: 4924206 (1990-05-01), Ayres
patent: 4991683 (1991-02-01), Garretto et al.
patent: 5041810 (1991-08-01), Gotanda
patent: 5344221 (1994-09-01), MacWilliam
patent: 5378929 (1995-01-01), Mor et al.
patent: 5595258 (1997-01-01), Georgas et al.

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