Electric heating – Heating devices – With current connection and/or disconnection means
Patent
1988-12-16
1990-06-19
Paschall, M. H.
Electric heating
Heating devices
With current connection and/or disconnection means
219494, 219497, 219505, 364184, 373 1, H05B 102
Patent
active
049356070
ABSTRACT:
A temperature regulating control unit and method of making the same are provided, the unit comprising a RTD temperature sensor, a unit for applying electrical signals to the sensor, and a microcomputer for receiving digital signals from the sensor in relation to the temperature being sensed by the sensor, the unit for applying electrical signals to the sensor applying a varying voltage to the sensor.
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patent: 4314143 (1982-02-01), Bilstad et al.
patent: 4367399 (1983-01-01), Anthony et al.
patent: 4415800 (1983-11-01), Dodge et al.
patent: 4611295 (1986-09-01), Fowler
patent: 4644137 (1987-02-01), Asahi et al.
patent: 4782215 (1988-11-01), Kadwell et al.
Fowler Daniel L.
Gawron Gregory F.
Kadwell Brian J.
Paschall M. H.
Robertshaw Controls Company
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