Temperature change sensing device

Details Temperature change sensing device Temperature change sensing device

1975-07-30

1976-04-27

Swisher, S. Clement

Signals and indicators

Alarms

Thermal

733637, G08B 702, G08B 2100

Patent

active

039526925

ABSTRACT:
A temperature change sensing device which is adapted to be used in conjuction with an audible or visual warning device, comprising a temperature sensitive means for rotating a first disc, having disposed about its surface at least one of a first cooperative coupling means. These first cooperative coupling means coincide with a second cooperative coupling means located on a second disc. When the ambient temperature reaches the preset temperature of the sensing device, the temperature sensitive means rotates the first disc such that the first cooperative coupling means aligns with the second cooperative coupling means on the second disc. The second disc is then thrust toward the first disc by a biasing means, which has attached to it a means for tripping a visual or audible warning device.

REFERENCES:
patent: 2750916 (1956-06-01), Hanington
patent: 3140372 (1964-07-01), Randolph

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