Patent ID: 7369030

Claim:
An electric fuse comprising: a nonconductive fuse body; first and second terminal elements coupled to said fuse body; a primary fuse element electrically connected between said first and second terminal elements, said primary fuse element extending within and enclosed by said fuse body; and a fuse state indicator assembly comprising a secondary fuse element electrically connected between said first and second terminal elements in parallel with said primary fuse element, a contact pin mechanically and electrically connecting said secondary fuse element to one of said terminal elements, and a combustible substance adjacent said secondary fuse element, wherein said fuse state indicator assembly further comprises an extension member having a conductive end which electrically connects said secondary fuse element to the other of said terminal elements, a portion of said extension member extending within a slot in said fuse body and exposed to an exterior of said fuse body, and a portion of said extension member extending interior to said fuse body.