Electrically heated garment

Details Electrically heated garment Electrically heated garment

1989-09-08

1991-07-16

Walberg, Teresa A.

Electric heating

Heating devices

Combined with diverse-type art device

219529, H05B 336

Patent

active

050327054

ABSTRACT:
An electrically heated, cold weather garment. The garment includes a lightweight, stretchable, form-fitting fabric for covering portions of the body of a wearer of the garment; a plurality of flexible, electrical heating wires cover stitched to the fabric by sewing; an electronic controller for controlling current flowing through each of the heating wires in a pulse-width modulated fashion, to thereby independently control the heat generated by each heating wire; a plurality of potentiometers for controlling the level of power supplied to each heating wire; and a master power level potentiometer for controlling the power supplied to each of the heating wires in a uniform and simultaneous fashion. In a first preferred embodiment the controller utilizes a combination of analog and digital-like signals to control in a pulse-width modulated fashion the current flow through the heating elements. In a second preferred embodiment the controller includes a microprocessor which is operable to sense changes in the temperature of the heating wires themselves, and to regulate automatically and independently the power supplied to each of the heating wires.

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