Electric heating – Heating devices – With heater-unit housing – casing – or support means
Patent
1978-04-05
1980-01-29
Mayewsky, Volodymyr Y.
Electric heating
Heating devices
With heater-unit housing, casing, or support means
128399, 219211, 219347, 219528, H05B 336
Patent
active
041862945
ABSTRACT:
A therapeutic heating pad which is not hot to the touch provides substantial infrared radiation to a user. Accordingly it can be used for extended periods without feeling uncomfortable to the skin, while imparting deep therapeutic heat to the user. The heating pad is comprised of a radiant heat generating layer having a plane surface comprising means for radiating heat evenly from its surface, a pair of flexible electrically insulating and radiation permeable layers located adjacent and covering opposite sides of the layer, a thermal insulation layer disposed against and covering one of the electrically insulating layers, a radiation reflective layer disposed against and covering the outside surface of the thermal insulation layer, and a sealed radiation permeable envelope enclosing the entire heater. Preferably the flexible heat generating layer is comprised of a fiber glass mat impregnated with a resistive material, which material provides a surface temperature, when current is conducted therethrough, which is between 60 degrees Celsius and 65 degrees Celsius.
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Laff Charles A.
Mayewsky Volodymyr Y.
Rockman Howard B.
Whitesel J. Warren
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