Temperature controlled hot plate

Details Temperature controlled hot plate Temperature controlled hot plate

H - Electricity

05

B

309/83

H05B 3/68 (2006.01) H05B 3/70 (2006.01)

Patent

CA 1288122

A B S T R A C T A temperature controlled hot place (10) comprises a hot plate body (11) having an upper plane heat emitting surface (12) and a lower surface on which the heating coil (13) is provided. The heating coil is embedded in an electrically insulating substance (14) against which an elongated temperature sensor is pressed such that it is directly influenced by the heat emitted by the heating coil (13). The temperature sensor is of a kind containing an expandable medium, such as a liquid or the like. According to a preferred embodiment the tempera- ture sensor is arranged so as to follow the heating coil along essentially the whole of its length, straight below said heating coil. According to a further preferred embodiment a cup-shaped bottom washer (24) is arranged to press the temperature sensor (16) against the insulating substance as well as against an annular flange (15) surrounding the heat generating area and being an integral part of the hot plate body (11).

594969

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