Combination of an igniter for a gas furnace and a control unit t

Details Combination of an igniter for a gas furnace and a control unit t Combination of an igniter for a gas furnace and a control unit t

1990-04-11

1991-03-26

Paschall, M. Hy.

Electric heating

Heating devices

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

219508, 219494, 219492, 323236, 307 84, 307 43, H05B 102

Patent

active

050031619

ABSTRACT:
The combination of a heating element and a control unit therefor and methods of making and of operating the same are provided, the heating element normally being adapted to be operated by the continuous full wave pulses of a certain high voltage alternating current source and the control unit being operatively interconnected to the heating element for operatively interconnecting the heating element to a high voltage alternating current source, the control unit having an arrangement for operating the heating element with a certain repeating pattern of skipped full half-wave pulses of the source when the source has a higher voltage than the certain source.

REFERENCES:
patent: 4188528 (1980-02-01), Wierzchowski et al.
patent: 4506144 (1985-03-01), Hesford et al.
patent: 4604517 (1986-08-01), Barry
patent: 4608500 (1986-08-01), Togawa
patent: 4615323 (1987-05-01), Russell et al.
patent: 4626697 (1986-12-01), Nelson
patent: 4638176 (1987-01-01), Martinelli

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