Self-contained fire detector with interconnection circuitry

Details Self-contained fire detector with interconnection circuitry Self-contained fire detector with interconnection circuitry

1977-01-03

1978-05-23

Swann, III, Glen R.

Communications: electrical

Systems

Call station

340228R, 340237S, G08B 1710

Patent

active

040913635

ABSTRACT:
A fire detector for being connected in a system with a plurality of detectors, is characterized by interconnect circuitry for connecting with like circuitry of the other detectors. The interconnect circuitry causes all of the detectors to generate an alarm in response to any one of the detectors sensing combustion, and to generate an indication of an improper connection between the detectors.

REFERENCES:
patent: RE28915 (1976-07-01), Ogden et al.
patent: 3676877 (1972-07-01), Kobayashi
patent: 3872449 (1975-03-01), Scheidweiler

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