Electrical switch construction

Details Electrical switch construction Electrical switch construction

1975-05-08

1976-09-21

Smith, Jr., David

Electricity: circuit makers and breakers

Special application

Liquid or moisture responsive

200 76, H01H 1336

Patent

active

039820866

ABSTRACT:
An electrical switch, comprises a housing having spaced apart side walls each with a bearing recess which is located above spaced apart fixed contacts. An actuator is guided in the housing between the side walls and moves toward the fixed contacts to move first leg portions of substantially U-shape contact springs to flex these leg portions and pivot intermediate web portions which are pivotal in the bearing recesses and, thereafter, snap second leg portions into engagement with the fixed contacts. The arrangement may include two sets of spaced apart contact members between which the second leg portions of the leaf springs are movable and the first leg portions are preferably pivotally connected between depending feet of the actuating member. The second leg portions include curved recesses located below the feet which are similarly curved so that the feet engage into the recesses and move these leg portions before the second leg portions are snapped into a contact engagement with one or the other of the fixed contact members.

REFERENCES:
patent: 2464244 (1949-02-01), Wise

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