Automobile anti-theft alarm system

Electrical transmission or interconnection systems – Vehicle mounted systems – Automobile

Patent

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Details

340 63, B60N 2510

Patent

active

039756459

ABSTRACT:
An anti-theft alarm system employing a timer having a normally closed timer switch which opens automatically within a selected time interval after the timer is energized, a normally deenergized relay having a winding and a set of normally open contacts, an ignition switch, an electrically operated alarm, plurality of trigger switches connected in parallel which are normally open and a battery. First means connect the main switch, timer switch, trigger switch and winding in series across the battery; second means connect said main switch, the alarm and the set of contacts in series across the battery; and the timer is connected in parallel with the winding of the relay.

REFERENCES:
patent: 3755778 (1973-08-01), Kennedy et al.
patent: 3792435 (1974-02-01), Pace et al.
patent: 3858175 (1974-12-01), Kopera, Jr.

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