Electric hot plate assembly with a temperature limiter

Details Electric hot plate assembly with a temperature limiter Electric hot plate assembly with a temperature limiter

1978-08-03

1979-05-08

Mayewsky, Volodymyr Y.

Electric heating

Heating devices

Combined with container, enclosure, or support for material...

219452, 219512, 337354, H05B 368

Patent

active

041538331

ABSTRACT:
An electric hot plate assembly including an electrically heated hot plate having at least one electrical conductor disposed therewithin for heating an annular zone of the plate when energized, cover means defining an enclosed space located immediately beneath said hot plate and secured thereto, and a device for limiting the operating temperature of the hot plate, the temperature limiting device comprising a housing, a bimetallic element projecting from said housing into said enclosed space at a location beneath said annular zone, the housing having a base portion disposed externally of said enclosed space, connecting terminals located in the base portion of the housing for connecting said at least one hot plate conductor to an electrical supply, and switch means located in said base portion of the housing and adapted to be actuated by the bimetallic element by a pressure rod means, said bimetallic element being curved, the first end of said bimetallic element being in pressure engagement with said pressure rod means acting on said switch means, the second end of said bimetallic element being fixedly mounted adjacent a passage for said pressure rod means into said base portion.

REFERENCES:
patent: 2196671 (1940-04-01), Gille et al.
patent: 2306979 (1942-12-01), Potsdam
patent: 2311087 (1943-02-01), Sandell
patent: 2427944 (1947-09-01), Clark
patent: 2644874 (1953-07-01), Miller
patent: 2684430 (1954-07-01), Bieling
patent: 2691717 (1954-10-01), Huck
patent: 2813963 (1957-11-01), Lennox
patent: 2816203 (1957-12-01), Weeks
patent: 3591960 (1971-07-01), Paine et al.
patent: 4045654 (1977-08-01), Eide

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