Portable fire detection system

Details Portable fire detection system Portable fire detection system

1989-02-16

1990-01-09

Ng, Jin F.

Telephonic communications

Emergency or alarm communications

Responsive to sensed nonsystem condition

379 43, 379 42, 340506, 340521, 340533, H04M 1104, G08B 1712

Patent

active

048933244

ABSTRACT:
A portable fire detector and alarm system includes a rechargeable battery power supply and circuitry that monitors a string of up to forty smoke detectors and signals a telephone auto-dialer and prerecorded message unit whenever an alarm occurs. The distal end of the detector line is fed back to the monitor which then detects any loss of continuity in the lines or input AC power and then signals a trouble signal through the auto-dialer.

REFERENCES:
patent: 4017852 (1977-04-01), Kabat
patent: 4521645 (1985-06-01), Carroll

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