Electric fuse

Details Electric fuse Electric fuse

1976-11-10

1977-10-25

Broome, Harold

Electricity: electrothermally or thermally actuated switches

Electrothermally actuated switches

Fusible element actuated

337165, 337296, H01H 8504

Patent

active

040558274

ABSTRACT:
The electric time-lag fuse involves a substantially T-shaped shorting strip shorting the insulating gap formed between a pair of metal overlays on an insulating strip, and a helical tension spring having a variable diameter affixed with one of the ends thereof to said T-shaped shorting strip, and resting with the other end thereof against the annular surface of a tubular member.

REFERENCES:
patent: 2667551 (1954-01-01), Berthel
patent: 2683788 (1954-07-01), Hoorn
patent: 2688677 (1954-09-01), Laing
patent: 2769877 (1956-11-01), Sundt
patent: 2864917 (1958-12-01), Sundt

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