Patent ID: 6456189
Filing Date: 2002-09-24
Classification: H01H

Abstract:
An electric fuse, comprised of:a tubular fuse casing formed of an electrically insulating material; a first conductive component attached to a first end of said casing; a second conductive component attached to a second end of said casing; a first conductive path extending through said tube between said first and second conductive components, said first conductive path including a fusible element and having a first resistance; and a second conductive path extending along the exterior of said tubular fuse casing, said second conductive path being in parallel to said first conductive path, having a second resistance greater than said first resistance and including an indicator component, said indicator component, comprised of: a first layer providing a visual indication of color; a second layer including at least one metal layer on said first layer, said second layer having a region of increased resistance; a cavity located above said region of increased resistance; and a third layer comprised of a transparent polymeric material covering said cavity and said first and second layers.