Electricity: electrical systems and devices – Safety and protection of systems and devices – High voltage dissipation
Patent
1994-01-26
1995-06-13
Deboer, Todd
Electricity: electrical systems and devices
Safety and protection of systems and devices
High voltage dissipation
361119, 337 32, H02H 904
Patent
active
054249015
ABSTRACT:
An improved fail-safe mechanism is provided for use with a sidactor for protecting telecommunication equipment against high voltage surges. A sidactor includes first and second end terminal pins and a central terminal pin. The fail-safe mechanism consists of a torsional type spring and a pair of insulators. The torsional spring includes a single looped portion and a pair of spring arms extending radially outwardly from the opposite sides of the looped portion. The spring arms of the torsional spring are initially formed so as to have an obtuse angle therebetween. The center of the single looped portion is disposed off-centered in relationship to the centers of the first and second end terminal pins of the sidactor during assembly in order to assure that sufficient and constant pressure is applied between the spring arms and the end terminal pins.
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Frederiksen Bjarne
Masghati Mohammad
DeBoer Todd
Illinois Tool Works Inc.
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