Control system and control device for controlling a heating unit

Details Control system and control device for controlling a heating unit Control system and control device for controlling a heating unit

1980-07-21

1982-04-06

Reynolds, B. A.

Electric heating

Heating devices

With power supply and voltage or current regulation or...

219490, 219515, 219491, 337 1, 338 31, H05B 102

Patent

active

043237649

ABSTRACT:
A control system for a heating unit that has controls for comparing a variable electrical signal that has a value in relation to the output temperature of the heating unit and a selected electrical signal that has a value in relation to a selected temperature setting to control the operation of the heating unit to tend to produce an output temperature substantially equal to the selected temperature, the controls including a control device having a rod and tube temperature sensing unit for providing linear motion of a part thereof in relation to the output temperature of the heating unit and having a potentiometer provided with an electrical output producing part operatively interconnected to the movable part of the rod and tube unit so as to produce the variable electrical signal in relation to the output temperature of the heating unit.

REFERENCES:
patent: 2272188 (1942-02-01), Danielson
patent: 2423609 (1947-07-01), Middleton et al.
patent: 2573041 (1951-10-01), May
patent: 2862093 (1958-11-01), Lennox
patent: 3419707 (1968-12-01), Hild et al.
patent: 3483360 (1969-12-01), Perry
patent: 3562692 (1971-02-01), Bletz et al.
patent: 3842232 (1974-10-01), Long

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