| 摘要 |
PCT No. PCT/AU88/00450 Sec. 371 Date May 15, 1989 Sec. 102(e) Date May 15, 1989 PCT Filed Nov. 18, 1988 PCT Pub. No. WO89/05018 PCT Pub. Date Jun. 1, 1989.A motor vehicle theft deterrent device comprises a timer (2) operable by an existing alarm system (1), a relay (3) actuable in response to the timer (2), and a valve (14) operable, via the relay (3), to release and direct, through one or more concealed nozzles (4), a spray of a pressurized, non-toxic and non-corrosive irritant towards a would-be thief. The circuitry (12) and a pressurized container (9) may be accommodated in a tamper-proof metal housing (7) mounted upon the firewall of the vehicle, and a secondary circuit (5) may be activated so as to cause a siren or loudspeaker (6) to emit a high-pitched sound. |
