Electricity: electrothermally or thermally actuated switches – Electrothermally actuated switches – Fusible element actuated
Patent
1976-02-23
1977-11-15
Beha, Jr., William H.
Electricity: electrothermally or thermally actuated switches
Electrothermally actuated switches
Fusible element actuated
337206, 337292, H01H 8530
Patent
active
040587843
ABSTRACT:
A circuit-interrupting device has a stationary current-conducting member, a movable current-conducting member, a connector which accommodates the adjacent ends of the current-conducting members and which normally holds a mass of heat-softenable alloy in engagement with those adjacent ends, an indicator which is connected to the movable current-conducting member and a spring which can simultaneously move the movable current-conducting member, and the indicator to moved positions whenever the circuit-interrupting device opens the circuit. The adjacent ends of the current-conducting members extend into the connector a distance less than one-half of the minimum distance through which the spring will move the indicator.
REFERENCES:
patent: 2400491 (1946-05-01), Duerkob
patent: 2543245 (1951-02-01), Laing
patent: 2665349 (1954-01-01), Sander
patent: 3593249 (1971-07-01), Sedgwick
patent: 3678430 (1972-07-01), Gaia
Beha Jr. William H.
Gealow Jon Carl
LaPorte Ronald J.
McDonald Thomas E.
McGraw-Edison Company
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