Heated glazing panel and a circuit for controlling the heat outp

Details Heated glazing panel and a circuit for controlling the heat outp Heated glazing panel and a circuit for controlling the heat outp

1995-09-12

1997-04-29

Walberg, Teresa J.

Electric heating

Heating devices

With heater-unit housing, casing, or support means

219203, 219543, 219548, 219497, 338308, H05B 306, H05B 316, H01C 1012

Patent

active

056245912

ABSTRACT:
A glazing panel includes at least one sheet of vitreous material; a conductive transparent coating which is provided on at least one face of at least one sheet of the at least one sheet of vitreous material and which constitutes a heating element for the glazing panel when connected to an electrical power source; and a control circuit for controlling heating power output of the glazing panel, the control circuit including adjustable means for controlling the heating power output to a preselected level as a function of voltage of the electrical power source and electrical resistance of the heating element.

REFERENCES:
patent: 3876862 (1975-04-01), Newman et al.
patent: 3982092 (1976-09-01), Marriott
patent: 4057671 (1977-11-01), Shoop
patent: 4127765 (1978-11-01), Heaney
patent: 4278875 (1981-07-01), Bain
patent: 4410843 (1983-10-01), Sauer et al.
patent: 4459470 (1984-07-01), Shlichta et al.
patent: 4507547 (1985-03-01), Taga et al.
patent: 4952783 (1990-08-01), Aufderheide et al.
patent: 5270517 (1993-12-01), Finley
patent: 5354966 (1994-10-01), Sperbeck
patent: 5360962 (1994-11-01), Pettit
patent: 5418025 (1995-05-01), Harmand et al.

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