Stolen equipment recovery device

Details Stolen equipment recovery device Stolen equipment recovery device

1980-03-03

1981-08-18

Waring, Alvin H.

Communications: electrical

Condition responsive indicating system

Specific condition

340539, 340694, G08B 1322

Patent

active

042849853

ABSTRACT:
A method and necessary apparatus for detecting the unauthorized operation or asportation of mobile or portable equipment. The apparatus comprises a concealable transmitter designed to re-transmit a coded message received from a check station. The check station may be stationary such as at the exit gate of a garage or at a fixed checkpoint along a thoroughfare; or may be carried on a vehicle such as a police car or other type of security patrol. The concealed repeating transmitter is switched on or off by means of a pocket-sized short-range coded remote switch unit not unlike those used for the remote control of household television receivers.

REFERENCES:
patent: 3747086 (1973-07-01), Peterson
patent: 3798642 (1974-03-01), Augenblick et al.
patent: 3944928 (1976-03-01), Augenblick et al.
patent: 3990065 (1976-11-01), Purinton et al.

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