G - Physics – 05 – D
Patent
G - Physics
05
D
340/159, 341/32.
G05D 23/19 (2006.01) G05D 23/24 (2006.01)
Patent
CA 1218731
-20- ABSTRACT OF THE DISCLOSURE The thermostat of the present invention includes a sensor for providing a signal representative of the actual temperature within a space. A microcomputer is coupled to the sensor and intermittently utilizes power at a first level when in an operating state for controllably generating output signals in response to the temperature signal. The microcomputer is adapted to be connected to a battery as a sole power source therefor. An isolating interface device such as an electromagnetic relay is coupled to the microcomputer and is adapted for connection to temperature-affecting equipment such as a heating or cooling system controller. The relay actuates the equipment in response to output signals from the microcomputer. A voltage detection circuit may optionally be provided for signalling a low battery voltage condition.
461459
Gleason Henry A. III
Jamieson J. Scott
Johnson Service Company
Kirby Eades Gale Baker
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