Motor vehicles – With means for promoting safety of vehicle – its occupant or... – By preventing unauthorized or unintended access or use
Patent
1994-07-15
1995-12-26
Tyson, Karin L.
Motor vehicles
With means for promoting safety of vehicle, its occupant or...
By preventing unauthorized or unintended access or use
188353, 303 89, B60T 1716, B60R 2508
Patent
active
054779391
ABSTRACT:
A vehicle anti-theft system includes components for engaging the brakes of the vehicle through the vehicle's hydraulic brake lines. In its preferred embodiment the system includes an auxiliary vacuum booster, an air plunger and cylinder assembly, a compressor for producing compressed air for moving the plunger, an arm connecting the plunger with the vacuum booster, an auxiliary brake master cylinder, and hydraulic fluid lines between the auxiliary brake master cylinder and the conventional fluid lines of the vehicle. Once parked, the compressor automatically engages and pressurizes the plunger and cylinder. The plunger presses against the vacuum booster utilizing the remaining vacuum available from the existing system. The vacuum booster acts against the auxiliary master cylinder to apply pressure on the fluid lines between the auxiliary master cylinder and the vehicle's existing hydraulic lines, thereby locking the vehicle brakes.
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