Moist heating pad

Details Moist heating pad Moist heating pad

1976-08-12

1978-05-23

Mayewsky, Volodymyr Y.

Electric heating

Heating devices

With heater-unit housing, casing, or support means

128256, 128399, 219529, 219530, 219549, 219212, H05B 336

Patent

active

RE0296414

ABSTRACT:
An improved heating device such as a heating pad comprising a fabric base and insulated resistance wire mounted in said pad, preferably in a backward and forward sinuous pattern, at least one thermostat connected in series with the resistance wire element at both ends by means of lead wires of a low resistance metal such as copper, each thermostat being positioned intimately with a span or straight portion forming part of a sinuous loop of resistance wire, a switch connected in series with the resistance wire, and a plurality of bars of a metal such as lead mounted in the pad. In an improved embodiment the insulation on the resistance wire is formed of a plastic material able to withstand the elevated temperatures attained by the resistance wire during operation.

REFERENCES:
patent: 774623 (1904-11-01), Wales
patent: 1653901 (1927-12-01), Haessly
patent: 1754763 (1930-04-01), Nunnally
patent: 2154184 (1939-04-01), Roberts
patent: 2215042 (1940-09-01), Howard et al.
patent: 2393182 (1946-01-01), Newell
patent: 2590212 (1952-03-01), Samuels
patent: 2627018 (1953-01-01), Duren
patent: 2633846 (1953-04-01), Wray
patent: 3119926 (1964-01-01), Mills et al.
patent: 3425567 (1969-01-01), Mills

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