Electric heating – Heating devices – With heating unit structure
Patent
1983-03-16
1984-08-07
Mayewsky, Volodymyr Y.
Electric heating
Heating devices
With heating unit structure
219535, 219541, 219542, 219552, 338316, 338213, 174111, H05B 302
Patent
active
044645651
ABSTRACT:
An elongated flexible resistance heating element includes a heat transmitting cover that is generally coextensive with the element. A resilient element is provided adjacent one end of the heating element to accommodate extension of the cover for use of the heater as desired without changing the length of the element or cover. The extensible tape heater of the present invention comprises an elongated flexible resistance wire heating element, a heat transmitting extendable cover arranged coextensive with the heating element, a substantially nonresistive wire connected about one end of the heating element, a spring surrounding the nonresistive wire and abutting the cover at one of its ends, a stop positioned about the non-resistive wire in spaced relation to the end of the cover, and a flexible sleeve extending over the spring.
REFERENCES:
patent: 1997146 (1935-04-01), Hynes
patent: 2379317 (1945-06-01), Picciano
patent: 2722597 (1955-11-01), Steiner
patent: 3036187 (1962-05-01), Goldstaub et al.
patent: 3694628 (1972-09-01), McGuire et al.
patent: 3846621 (1974-11-01), Roos
patent: 4241292 (1980-12-01), Kreick et al.
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