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1. (WO1999032331) A SECURITY SYSTEM FOR A VEHICLE
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CLAIMS

1. A vehicle security system comprising a pressurised fuel source with a plurality of nozzles in flow communication therewith securable to a vehicle to discharge fuel from at least one side of the vehicle, an igniter to operatively cause ignition of fuel discharging from the nozzles and means to control the operation of the pressurised fuel source and the igniter.

2. A vehicle security system as claimed in claim 1 characterised in that the control means includes a switch to operate the pressurised fuel source and the igniter.

3. A vehicle security system as claimed in claim 2 characterised in that the switch is foot operated.

4. A vehicle security system as claimed in any one of the preceding claims characterised in that the control means includes a code input facility to cause activation thereof.

5. A vehicle security system as claimed in claim 4 characterised in that the code input facility includes a keypad.

6. A vehicle security system as claimed in claim 4 characterised in that the code input facility includes a passive transponder.

7. A vehicle security system as claimed in claim 4 characterised in that the code input facility includes a remote transmitting unit.

8. A vehicle security system as claimed in any one of the preceding claims characterised in that an impact switch is provided to cause emergency de-activation of the security system.

9. A vehicle security system as claimed in any one of the preceding claims characterised in that the igniter includes means for generating an electric spark at the nozzles.

10. A vehicle security system as claimed in any one of the preceding claims characterised in that the nozzles are operatively located above or below the doors of a vehicle.

11. A vehicle security system as claimed in any one of the preceding claims characterised in that the pressurised fuel source includes a cylinder containing liquid propane gas (LPG).

12. A vehicle security system as claimed in claim 11 characterised in that the cylinder has a valve operable by the control mean at the outlet thereto.

13. A vehicle security system as claimed in claim 12 characterised in that the o valve is a solenoid valve.

14. A vehicle security system as claimed in any one of claims 1 to 10 characterised in that the pressurised fuel source includes a pump connected to a fuel reservoir.

15. A vehicle security system as claimed in claim 14 characterised in that the 5 fuel reservoir is the fuel tank of a vehicle.

16. A vehicle having a security system as claimed in any one of the preceding claims.