Means for mounting a bimetal blade in a thermostatic switch

Details Means for mounting a bimetal blade in a thermostatic switch Means for mounting a bimetal blade in a thermostatic switch

1987-12-07

1988-07-05

Broome, H.

Electricity: electrothermally or thermally actuated switches

Thermally actuated switches

With bimetallic element

337380, H01H 3704, H01H 6108

Patent

active

047557877

ABSTRACT:
The present invention provides, in a preferred embodiment, a thermostatic switch having a bimetal blade connected, at one end, to a terminal arm by means of a fastener. In accordance with the present invention, a weld electrically connects the one end of the blade to the terminal arm. The weld is located so that the fastener is located between the weld and a central, flexing portion of the bimetal blade. As a result of the placement of the weld and the fastener, weakening of the central flexing portion of the blade does not occur as is the case of a prior art connection in which the blade is welded to terminal arm.

REFERENCES:
patent: 3067306 (1962-12-01), Epstein
patent: 3851288 (1974-11-01), Stoll

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