Electricity: electrothermally or thermally actuated switches – Electrothermally actuated switches – Fusible element actuated
Patent
1995-04-07
1998-09-08
Picard, Leo P.
Electricity: electrothermally or thermally actuated switches
Electrothermally actuated switches
Fusible element actuated
337169, 337171, 337174, 337158, H01H 7110
Patent
active
058050469
ABSTRACT:
A current responsive latching apparatus may be employed in a dropout fuseholder or other electrical component for retaining the component in a current-carrying position and disconnecting and isolating the electrical component upon the occurrence of an overcurrent of a predetermined magnitude. The apparatus includes a current path through the component, including a current-carrying stud or conductor, a portion of which extends outside the component for releasably engaging a support member. A latching apparatus, which may include an actuating member of memory allow or a bimetallic material, engages the conductor to retain the support member in a supporting position beneath the electrical component. The apparatus may further include a heater element in the current path to ensure that the actuation member is heated to the temperature necessary to cause it to change shape and release the conductor upon the presence of an overcurrent.
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Hassler Stephen Paul
Johnson Stephen Paul
Lapp John
Cooper Industries Inc.
Gandhi Jayprakash N.
Picard Leo P.
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