H - Electricity – 01 – H
Patent
H - Electricity
01
H
306/135
H01H 85/32 (2006.01)
Patent
CA 1227828
ABSTRACT An integrity indicator formed as an illuminable bead is combined with the pair of flat termimal blades of a mini- ature plug-in fuse and is positioned in a central window pro- vided in the top wall of the insulator housing thereof. The housing defines a chamber having an open bottom and a central section with relatively narrow lateral sections in which up- per portions of the blades are secured. A fuse-wire extends across the central section conductively interconnecting the blades. The illuminable bead has a pair of wire leads extend- ing oppositely into the lateral sections of the chamber, each wire lead conductively contacting the upper portion of one of the blades and connecting the bead in parallel circuit with the fuse-wire. Clamping components formed on the interior of the top wall and on the upper portion of each terminal blade secure each wire lead in operative position. Embodiments include the fuse-wire integrally formed with the blades as a unitary structure and formed separately as a three piece structure wherein opposite ends of the fuse-wire are also secured by the clamping components, the latter being either in coplanar relation with the blades or disposed perpendicu- lar to the plane of the blades.
473795
Frayne & Company Robert
Visual Fuse Incorporated
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