Combination of fusible elements for electric fuses

Details Combination of fusible elements for electric fuses Combination of fusible elements for electric fuses

1978-05-15

1979-12-18

Broome, Harold

Electricity: electrothermally or thermally actuated switches

Electrothermally actuated switches

Fusible element actuated

337293, H01H 8512

Patent

active

041796772

ABSTRACT:
A plurality of ribbon-type fusible elements is arranged in parallel. Each of them includes a plurality of serially arranged points of reduced cross-sectional area. Each of these points is formed by a perforation and two current paths, each to opposite sides of the perforation. Along the plurality of fusible elements, like rungs of a ladder, is arranged a plurality of separate pairs of members of electric insulating material, each covering at least two points of the plurality of points of reduced cross-section. Fastener means project through each of the pairs of insulating members to firmly position the same in relation to the plurality of fusible elements.

REFERENCES:
patent: 2988620 (1961-06-01), Kozacka
patent: 3020372 (1962-02-01), Kozacka
patent: 3238333 (1966-03-01), Kozacka
patent: 3394333 (1968-07-01), Jacobs, Jr.
patent: 4048609 (1977-09-01), Knapp, Jr.

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