Electricity: electrical systems and devices – Safety and protection of systems and devices – Circuit interruption by thermal sensing
Patent
1998-06-24
2000-04-25
Jackson, Stephen W.
Electricity: electrical systems and devices
Safety and protection of systems and devices
Circuit interruption by thermal sensing
361 56, 361118, 361124, H02H 500
Patent
active
06055147&
ABSTRACT:
An apparatus for providing independent over-current protection to a plurality of electrical devices and a transient-voltage suppression system employing the apparatus. In one embodiment, the apparatus includes a non-conductive body having a plurality of bores extending through the body from a first portion to a second portion of the body, a plurality of fusible elements corresponding to and disposed within the plurality of bores, each of the fusible elements having a first terminal proximate to the first portion of the body and a second terminal proximate to the second portion, and a common electrode coupled to the first terminal of each of the plurality of fusible elements. The common electrode is couplable to a source of electrical power and the second terminals of each of the plurality of fusible elements are couplable to an electrical device, such as a metal oxide varistor in a transient-voltage suppression system. Each of the fusible elements are operative to open-circuit when an electrical device coupled thereto causes an electrical current to flow through the fusible element in excess of a current rating of the fusible element.
REFERENCES:
patent: 4152743 (1979-05-01), Comstock
patent: 5153806 (1992-10-01), Corey
patent: 5502612 (1996-03-01), Osterhout et al.
Chen Qijun
Crissler Thomas F.
Jakwani Asif Y.
Jeffries Paul A.
Shterenberg Fyodor M.
Burleigh Roger S.
Current Technology, Inc.
Jackson Stephen W.
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