Anti-theft device for motor vehicles

Details Anti-theft device for motor vehicles Anti-theft device for motor vehicles

1997-06-09

1999-06-29

Hofsass, Jeffery A.

Communications: electrical

Land vehicle alarms or indicators

Of burglary or unauthorized use

3404255, 340438, B60R 2510

Patent

active

059174064

ABSTRACT:
An anti-theft device for a motor vehicle comprises in combination a blocking member, e.g., a butterfly damper, rotationally disposed within an internal space of an exhaust pipe to control an exhaust gas flow, reduction gear for rotation the blocking member from opened to closed position and in reverse direction, an electrical control switch and a mechanical switch for actuating and de-actuating device. The blocking member, when is in closed position, shuts off the exhaust gas flow from an engine of the vehicle and consequently disables the engine, thereby preventing an unauthorized operation of the vehicle.

REFERENCES:
patent: 3653457 (1972-04-01), Lopez
patent: 3834484 (1974-09-01), Sangster
patent: 4665692 (1987-05-01), Inaba
patent: 4696368 (1987-09-01), Hummel et al.
patent: 4699244 (1987-10-01), Bergquist et al.
patent: 5052204 (1991-10-01), Millar
patent: 5373287 (1994-12-01), Doublet
patent: 5414409 (1995-05-01), Voosen et al.
patent: 5612878 (1997-03-01), Joao et al.

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