Thermostat with ceramic mounting pins of resistive material

Details Thermostat with ceramic mounting pins of resistive material Thermostat with ceramic mounting pins of resistive material

1986-11-04

1987-10-27

Broome, Harold

Electricity: electrothermally or thermally actuated switches

Electrothermally actuated switches

With bimetallic elements

337103, 337107, H01H 6102, H01H 3704

Patent

active

047032987

ABSTRACT:
A thermostat comprises a bimetal switch element reacting upon changes in temperatures which on one of its ends is fastened to a frame and on its other end is provided with an electric contact adapted to engage a fixed contact provided on the frame. The frame comprises two mutually parallel sheet-like metallic contact carriers forming a base unit, through which two parallel pins are extending for connection of both contact carriers and on which pins the contact carrierrs, with a tight fit, are slidable to and fro relative to one another while being held in permanent mutually parallel relation during the sliding. The parallel pins in the thermostat are formed of a ceramic material of positive temperature coefficient of resistivity which serve to electrically space the two metallic contact carriers while also serving as a self-regulating external heating means for the thermostat.

REFERENCES:
patent: 3525914 (1970-08-01), Vind
patent: 4528540 (1985-07-01), Stiekel et al.

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