Thermal measuring and testing – Temperature measurement – Combined with diverse art device
Patent
1981-05-18
1983-06-21
Swisher, S. Clement
Thermal measuring and testing
Temperature measurement
Combined with diverse art device
73183, 340762, G01K 720, G01K 722
Patent
active
043891241
ABSTRACT:
A device (10) for monitoring selected operating conditions of combustion within a solid fossil fuel burning furnace having a discharge flue includes a circuit (12) for monitoring the instantaneous temperature in the flue and providing a signal proportional thereto, and a visual status indicator (35) having a plurality of light emitting diodes (40-44). The number of light emitting diodes (40-44) emitting illumination at a given time is indicative of the selected operating conditions of combustion within the furnace.
REFERENCES:
patent: 1618474 (1927-02-01), Potter
patent: 4050308 (1977-09-01), Lee
patent: 4097857 (1978-06-01), Miyakawa
patent: 4148220 (1979-04-01), Spofford
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