Triggering device for combustion detector

Details Triggering device for combustion detector Triggering device for combustion detector

1978-07-13

1979-12-04

Watkins, Donald

Signals and indicators

Alarms

Thermal

G08B 1700

Patent

active

041766180

ABSTRACT:
A triggering device for fire and smoke alarms in which a biased pin member is held in armed position by a latch element which is releasable when a bimetallic disc senses and responds to a selected temperature condition. The response of the disc is transmitted through a ball or antifriction element to which is imparted a lateral force for moving the latch element out of engagement with the pin member. The pin member is spring biased to urge the pin member against a member serving to cause actuation of the alarm.

REFERENCES:
patent: 2521469 (1950-09-01), Marks
patent: 2634058 (1953-04-01), Marks
patent: 3452706 (1969-07-01), Vogt
patent: 3559614 (1971-02-01), Cushman
patent: 3570446 (1971-03-01), Buford
patent: 4121533 (1978-10-01), Pappas

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