Patent ID: 6739311
Filing Date: 2004-05-25
Classification: B60R,F02D,Y10T

Abstract:
A theft prevention device for inhibiting theft of a vehicle, the theft prevention device comprising:a housing being adapted for coupling to an exhaust system of the vehicle such that said housing is for permitting exhaust to selectively pass through the housing; a valve assembly being positioned in said housing, said valve assembly being adapted for selectively restricting flow of exhaust from a motor of the vehicle to a muffler of the vehicle for stalling the motor of the vehicle when said valve assembly restricts flow of the exhaust from the motor of the vehicle; said valve assembly having a closure member, said closure member being positioned within said housing such that said closure member is adapted for being selectively positioned in the exhaust path of the exhaust system from the motor, said closure member being adapted for inhibiting of exhausting of gases from the motor of the vehicle to build up back pressure in the motor to facilitate shutdown of the motor when said closure member is positioned in the exhaust path of the vehicle; and said valve assembly having a relief valve assembly being positioned in an aperture extending through said closure member of said valve assembly, said relief valve assembly being adapted for bleeding off excessive back pressure formed when said closure member is positioned in the exhaust path and the motor fails to shut down, said relief valve assembly being adapted for being operationally coupled to an ignition system of the vehicle such that the ignition system of the vehicle is disrupted to shut down the motor when said relief valve assembly bleeds off excessive back pressure formed by the motor.