Electricity: electrothermally or thermally actuated switches – Details
Patent
1980-12-15
1982-03-30
Broome, Harold
Electricity: electrothermally or thermally actuated switches
Details
337244, H01H 3702, H01H 8530
Patent
active
043227066
ABSTRACT:
A fuse striker affords a visual or other indication of an operated condition of an associated fuse and is mounted within the fuse and comprises a housing structure coaxially arranged within the fuse with an end of the housing in contact with an end of the fuse, closure structure for the opposite end of the striker housing and comprising mating half sections with a longitudinal groove formed in at least one complementary surface through which an elongated high resistance ignition element extends and which is in shunt with the fusible elements of the fuse so as to contact with pyrotechnic material interposed between the closure means and a cup like piston element having an outwardly flared lip portion whereby ignition of the pyrotechnic element drives the piston toward the opposite end of the housing so as to thrust a striker pin mounted therein through the fuse cap so as to afford a visual indication of the operated condition of the fuse, the pyrotechnic material being ignited upon rupture of the fusible elements by the resulting flow of current through the shunt connected ignition element.
REFERENCES:
patent: 2639350 (1953-05-01), Cox
Broome Harold
Kearney-National Inc.
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