Fuse with helical fuse element
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United States of America Patent
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-
Feb 24, 1981
Grant Date -
N/A
app pub date -
Jun 21, 1978
filing date -
Aug 19, 1977
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A current limiting fuse has a helically coiled fuse element of ribbon-like material extending within a tubular casing between metallic end caps. The ribbon-like material is edge on to the axis of the helix for permitting a greater length of fuse element than if the ribbon-like material had its flat side towards the axis. In a preferred form, the ribbon-like material has ripples or indentations across it with the ripples having a greater displacement at the edge of the ribbon-like fuse element nearer the axis.
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