Conformable electric heating apparatus

Details Conformable electric heating apparatus Conformable electric heating apparatus

1983-02-03

1984-08-28

Mayewsky, Volodymyr Y.

Electric heating

Heating devices

With heater-unit housing, casing, or support means

219528, 219541, 219544, 219549, 338210, 174 51, H05B 336

Patent

active

044685572

ABSTRACT:
A planar electrical heating unit that is sufficiently flexible to be conformable to nonplanar surfaces such as the exterior of pipes and tanks. The unit is formed of plural layers. There are two glass fiber reinforced silicon rubber layers between which is sandwiched an electric resistance heater element. On one outside surface is adhesively secured an imperforate metal plate. Mounted to the plate is a junction box for electrical connections to the heating element and for ground connection to the metal plate. A thermoelectric sensor is housed within the junction box and serves to interrupt current to the heating element when a prescribed temperature has been reached. Adjacent the edge margins of the unit are a plurality of grommets which prevent delamination of the layers of the device and facilitate mounting the device to the exterior surface of a pipe, tank, or the like.

REFERENCES:
patent: 2802092 (1957-08-01), MacKendrick
patent: 2845519 (1958-07-01), Willat
patent: 2938992 (1960-05-01), Crump
patent: 3099540 (1963-07-01), Eisler
patent: 3374338 (1968-03-01), Morey
patent: 3393297 (1967-07-01), Hart
patent: 3470350 (1969-09-01), Lewis
patent: 3627981 (1971-12-01), Kuhn
patent: 3657517 (1972-04-01), Hoyt
patent: 3705375 (1972-12-01), Hershler
patent: 3904850 (1975-09-01), Johnson
patent: 4245149 (1981-01-01), Fairlie

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