Method of manufacturing loop-formed metal foil elements

Details Method of manufacturing loop-formed metal foil elements Method of manufacturing loop-formed metal foil elements

1985-08-23

1987-02-17

Goldberg, Howard N.

Metal working

Method of mechanical manufacture

Electrical device making

29613, 29415, H05B 300

Patent

active

046428879

ABSTRACT:
Method of manufacturing two loop-formed metal foil elements (1,2) intended to serve as electrical resistance heating elements. Starting from a unitary metal foil, possibly enclosed by plastic foils, at least two complementarily extending loop elements, one inside the other.

REFERENCES:
patent: 1498969 (1924-06-01), Homan
patent: 1606282 (1926-11-01), Witter
patent: 3495328 (1970-02-01), Ziver
patent: 3878018 (1975-04-01), Cospen et al.

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