Thermostatic switch construction

Details Thermostatic switch construction Thermostatic switch construction

H - Electricity

01

H

306/182

H01H 37/52 (2006.01) H01H 37/54 (2006.01)

Patent

CA 1171443

RICHARD H. CARLSON THERMOSTATIC SWITCH CONSTRUCTION ABSTRACT OF THE DISCLOSURE A bimetallic, disc-actuated, thermo- static switch comprising a resiliently deformable actuator disc having an integrally struck actuator arm which extends radially inwardly to a point adjacent to a fixed contact. When the bimetallic disc is flexed in response to-a predetermined temperature change, it applies pressure to the edge of the actuator disc proximal to the stem of the actuator arm causing the actuator disc to be resiliently deformed and causing the arm to be pivoted on a fulcrum in the switch, thereby causing the terminal end of the arm to move relative to the fixed contact to either open or close the switch. Since the arrangement is such that the edge of the bimetallic disc exerts pressure on the actuator disc, maximum deformation is imparted to the actuator disc thereby achieving maximum movement of the actuator arm for a given size bimetallic disc, thus permitting relatively small discs to be success- fully utilized.

414815

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