Electricity: electrothermally or thermally actuated switches – Electrothermally actuated switches – Fusible element actuated
Patent
1997-08-19
1998-12-22
Thompson, Gregory
Electricity: electrothermally or thermally actuated switches
Electrothermally actuated switches
Fusible element actuated
337159, 337172, 337173, 337402, 337142, H01H 3776, H01H 8504, H01H 7110
Patent
active
058523960
ABSTRACT:
A fusible element is provided that includes cooperating interfitting parts surrounded by fusible material. The cooperating interfitting parts are arranged so as to place compressive force on the fusible material in response to attempted separation of the interfitting parts. Further, the arrangement also reduces the forces on the fusible material. In response to a predetermined time-current condition, the fusible material softens sufficiently to permit the release and separation of the interfitting parts.
REFERENCES:
patent: 4210893 (1980-07-01), Hara
Lapacek James V.
S&C Electric Company
Thompson Gregory
Vortman Anatoly
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