Electric heating – Heating devices – Combined with container – enclosure – or support for material...
Patent
1986-05-20
1987-09-29
Goldberg, E. A.
Electric heating
Heating devices
Combined with container, enclosure, or support for material...
337383, 219448, 219466, 219512, H05B 376
Patent
active
046970681
ABSTRACT:
A heating unit for cooking points, baking oven muffles or the like is provided on the inside of its outer body (2), in the central zone (10), with two thermal cutouts (17, 18), which are preferably located in a common cutout casing (19) exclusively located in said central zone (10) and sense with their temperature sensors (24, 25) different regions of the heating surface or outer body (2). The differently set thermal cutouts (17, 18) and the heating resistors (7, 8, 9) separately connected into the leads ensure a differentiated disconnection of a more or less large part of the heating power, so that rerliable protection against overheating is ensured, in the case of a compact construction.
REFERENCES:
patent: 2140479 (1938-12-01), Myers
patent: 2418867 (1947-04-01), Burch
patent: 4135081 (1979-01-01), Fischer
patent: 4577176 (1986-03-01), Bayer
E.G.O. Elektro Gerate Blanc u. Fischer
Goldberg E. A.
Walberg Teresa J.
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