Security alarm system

Details Security alarm system Security alarm system

1988-05-11

1989-09-12

Crosland, Donnie L.

Communications: electrical

Condition responsive indicating system

With particular coupling link

340571, 340572, 340566, 340590, 34082532, 340429, 340432, 340568, 307 104, G08B 108, B60R 2510

Patent

active

048664227

ABSTRACT:
A security unit is to be fitted to a goods container to be secured, normally to the load doors, and will transmit a radio signal when it is interfered with to a radio receiver which gives the alarm. Where the container is part of or is loaded on a vehicle, then in addition to this security for the container itself, the alarm system will have to be immobilized by an authorized driver before the vehicle can be driven by inserting two different keys in a predetermined time sequence before the vehicle can be operated.

REFERENCES:
patent: 3740713 (1973-06-01), Teich
patent: 3824540 (1974-07-01), Smith, II
patent: 3864675 (1975-02-01), Colibert
patent: 3961323 (1976-06-01), Hartkorn
patent: 3967166 (1976-06-01), Wei
patent: 4151506 (1979-04-01), Schoenmetz
patent: 4262284 (1981-04-01), Stieff et al.
patent: 4284973 (1981-08-01), Howell et al.
patent: 4320382 (1982-03-01), Roucek
patent: 4369437 (1983-01-01), Thompson, Jr. et al.
patent: 4450326 (1984-05-01), Ledger
patent: 4485887 (1984-12-01), Morano

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