Electricity: electrothermally or thermally actuated switches – Electrothermally actuated switches – Fusible element actuated
Patent
1989-04-10
1990-10-09
Broome, H.
Electricity: electrothermally or thermally actuated switches
Electrothermally actuated switches
Fusible element actuated
337213, 337228, 361403, H01H 8502
Patent
active
049623630
ABSTRACT:
A surface mountable leadless fuse generally includes a tubular fuse sub-assembly with an insulating body molded thereto in intimate sealing relation. The tubular fuse sub-assembly includes a nonconductive tubular housing, cup-shaped metal end caps enclosing the housing. The insulating body includes an upper and lower portion which are integral as molded. The end caps protrude from a bottom surface of the insulating body so that the fuse can engage the flat conductive areas of a circuit board for soldering thereto without obstructiion of the insulting body. The end caps also protrude from the end surfaces so that visual inspection and solder wetting are unobstructed. The lower portion of the insulating body covers an exposed portion of the tubular housing. A pair of anti-rolling legs depend from opposed margins of the bottom surface to prevent the fuse from rolling off of the circuit board once placed there.
REFERENCES:
patent: 316077 (1885-04-01), Stevens
patent: 1021549 (1912-03-01), Murray
patent: 3194926 (1965-07-01), Ustin
patent: 3684817 (1972-08-01), Card, Jr. et al.
patent: 3813637 (1974-05-01), Grebik et al.
patent: 4755785 (1988-07-01), Bernstein
Broome H.
Littelfuse Inc.
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