Multiple conductor indicator
AssigneeLittelfuse, Inc.
InventorsJohn Kennedy, Tom Novak, Mark Klinger, William Gonzalez
Life of this patent
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AssigneeLittelfuse, Inc.
InventorsJohn Kennedy, Tom Novak, Mark Klinger, William Gonzalez
Estimating the term…
One embodiment of the present invention provides a fuse having opened-fuse indication, which places two or more coils or conductors in parallel and in thermal contact with an indicating material. The multiple conductors allow a lower level of current to produce sufficient heat or sufficient electrical resistance to transform the indicating material. The multiple conductors can also be made of a reduced diameter, resulting in surge protection at a lower device temperature. The multiple conductor indicator in an embodiment includes a base material. First and second conductors contact the base material. An indicating material thermally couples to the first and second conductors. The indicating material can be on the inside or outside of the fuse body. If on the outside, the body can define a recess, wherein the indicator resides within the recess. The indicator can operate with fuses and other types of circuit protection devices.
A multiple conductor indicator comprising:
A multiple conductor indicator comprising:
A fuse having a multiple conductor indicator comprising:
A fuse having a multiple conductor indicator comprising:
A fuse having a multiple conductor indicator comprising:
A fuse having an opened-fuse indicator comprising:
The fuse of Class 43, which includes a plurality of end caps that electrically connect to the fuse element and are radially larger than the body, wherein the recess enables the indicator to be disposed so as not to extend radially past the end caps.
A circuit protection device comprising:
A multiple conductor indicator device for removably mounting to a circuit protection device comprising:
A method for providing a multiple conductor indicator comprising:
A method for providing a fuse having opened-fuse indication comprising:
A method of using a surge indication device comprising:
Dependencies are inferred from the claim text.