Electrical heating element

Details Electrical heating element Electrical heating element

1976-03-18

1977-05-03

Albritton, C. L.

Electrical resistors

Helical or wound resistance element

Plural supported helices or windings

219548, 219553, 338325, H01C 314, H01C 722

Patent

active

040217698

ABSTRACT:
An elongated electrical heating element comprises intertwisted helical strands of metal wire. Some of the strands extend the full length of the heating element and other strands extend predetermined shorter distances to provide two or more zones having differing electric resistances and therefore differing operating temperatures.

REFERENCES:
patent: 3469013 (1969-09-01), Hetherington et al.

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