Electric heating unit

Details Electric heating unit Electric heating unit

1975-10-17

1977-11-08

Albritton, C. L.

Electric heating

Heating devices

With heating unit structure

219409, 219464, 219553, 338308, H05B 316

Patent

active

040577074

ABSTRACT:
An electrical cooking or heating unit comprising a plate of a glassy material inluding a selected portion thereof upon whose upper surface vessels are to be placed for cooking purposes. The lower surface of the selected portion of the plate is provided with at least one sinuous strip of a gold/platinum alloy which integrally forms the electrical resistance heating element for the heating or cooking unit. A porous and partially sintered overglaze or coating covers the heating element and the portion of the lower surface of the plate on which the heating element is provided, such glaze preventing or inhibiting cracking, peeling or agglomeration of the heating element to provide a resultant increase in electrical resistivity. The life of the heating or cooking unit is thereby substantially increased.

REFERENCES:
patent: 636203 (1899-10-01), Helberger
patent: 3349722 (1967-10-01), Davis
patent: 3496336 (1970-02-01), Hingorang et al.
patent: 3778305 (1973-12-01), Holmes et al.
patent: 3883719 (1975-05-01), Hurko
patent: 3931496 (1976-01-01), Hurko

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