Electrical heating conductor

Details Electrical heating conductor Electrical heating conductor

1994-01-31

1996-05-28

Paschall, Mark H.

Electric heating

Heating devices

With heating unit structure

174102R, H05B 334, H01B 718

Patent

active

055213588

ABSTRACT:
An electrical heating conductor having a resistance wire core and a high temperature-resisting, electrical insulation layer on top of the core, further having a multi-wire layer as a protective conductor, is improved by a layer of a wrapped foil made of a mechanically high strength material such as a polyimid or a polyether ketone or a derivative of either, and wrapped underneath or above the protective layer in order to protect the insulation layer against impacts and squeezing; the foil may be covered with a fluoropolymer coating for chemical protection; the multi wire layer includes a threaded-through high strength thread to hold the foil against the insulation underneath.

REFERENCES:
patent: 4273829 (1981-06-01), Perreault
patent: 4436569 (1984-03-01), Weitzel et al.
patent: 4521485 (1985-06-01), Tondre et al.
patent: 4851060 (1989-07-01), Wade Jr. et al.
patent: 5138684 (1992-08-01), Bullock et al.
patent: 5237635 (1993-08-01), Lai
patent: 5245161 (1993-09-01), Okamoto
patent: 5374782 (1994-12-01), Taylor et al.

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