Electricity: electrothermally or thermally actuated switches – Electrothermally actuated switches – Fusible element actuated
Patent
1977-07-26
1978-08-01
Harris, George
Electricity: electrothermally or thermally actuated switches
Electrothermally actuated switches
Fusible element actuated
337186, H01H 8502
Patent
active
041046048
ABSTRACT:
An electric fuse having a pultruded casing of polyester resin including an outermost ply of woven glass cloth and an innermost ply of woven glass cloth and at least one intermediate ply of non-woven glass fiber mat. The casing of the fuse supports at the ends thereof a pair of ferrules which are press-fitted. The axially inner ends of said ferrules form narrowly knurled cones, and the knurled area encompasses the entire periphery of the axially inner ends of said ferrules rather than spaced points thereof.
REFERENCES:
patent: 348049 (1886-08-01), Perkins
patent: 2017490 (1935-10-01), Glowacki
patent: 3529270 (1970-09-01), Kozacka
patent: 4063208 (1977-12-01), Bernatt
Gould Inc.
Harris George
Salzer Erwin
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