Electric heating – Heating devices – With heating unit structure
Patent
1978-07-05
1980-04-08
Mayewsky, Volodymyr Y.
Electric heating
Heating devices
With heating unit structure
219528, 219535, 219541, 219544, 338210, H05B 336
Patent
active
041974492
ABSTRACT:
An electrical resistance heater includes a pliable thermally insulative base grooved in a major surface thereof and a flexible electrical resistance heating wire fitted within the groove. The heating wire insulated throughout its length is elastically gripped by the base and the outer surface portion of the heating wire throughout its length extends outwardly of the major surface of the base, providing a unidirectional heat source for use as a "spot heater". Connections of the heating wire to lead wires are disposed within two preformed cavities provided in the major surface of the base. The cavities open in the same direction as the groove and a suitable moisture impervious insulating material disposed within the cavities seals the connections.
REFERENCES:
patent: Re26522 (1969-11-01), Fessenden
patent: 1820602 (1931-08-01), Dick
patent: 1980528 (1934-11-01), Hubl
patent: 2022518 (1935-11-01), Payne
patent: 2619580 (1952-11-01), Pontiere
patent: 3125657 (1964-03-01), Colten
patent: 3191005 (1965-06-01), Cox
patent: 3249959 (1966-05-01), Theckston
patent: 3403368 (1968-09-01), Scardina
patent: 3500444 (1970-03-01), Hesse et al.
patent: 3812320 (1974-05-01), Borgren
Mayewsky Volodymyr Y.
Springfield Wire Inc.
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