Full-range temperature indicator device and circuitry

Details Full-range temperature indicator device and circuitry Full-range temperature indicator device and circuitry

1987-11-18

1989-08-08

Cuchlinski, Jr., William A.

Thermal measuring and testing

Temperature measurement

By electrical or magnetic heat sensor

374173, 374163, G01K 702

Patent

active

048547239

ABSTRACT:
Full-range temperature indicators used for the display of a temperature scale represented by the number of lamps illuminated based on the temperature of a thermocouple being detected by IC amplifier circuitry, diodes, switching transistors trigger-driven by contacts, illuminating a proper number of indicating lamps for a showing of the detected temperture. Also a particular range of temperature can be preset at upper and lower limits by a rheostat for sequential flashing of the indicating lamps around the limits set.

REFERENCES:
patent: 3927571 (1975-12-01), Athey
patent: 3946364 (1976-03-01), Codomo et al.
patent: 4086812 (1978-05-01), Luthe et al.
patent: 4115785 (1978-09-01), Hoopes et al.
patent: 4121462 (1978-10-01), Mohrman
patent: 4340886 (1982-07-01), Boldt et al.
patent: 4406550 (1983-09-01), Gray
patent: 4418339 (1983-11-01), Spofford, Jr. et al.
patent: 4470711 (1984-09-01), Brzozowski
patent: 4577510 (1986-03-01), Bur et al.
patent: 4730941 (1988-03-01), Levine et al.

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