发明名称 |
Electrical fuse with indicator |
摘要 |
An electric fuse is comprised of a tubular fuse casing formed of an electrically insulating material. A first conductive component is attached to a first end of the casing and a second conductive component is attached to a second end of the casing. A first conductive path is formed through the tube between the first and second conductive components. The conductive path includes a fusible element having a first resistance. A second conductive path is formed along the exterior of the tubular fuse casing. The second conductive path is in parallel to the first conductive path and has a second resistance greater than the first resistance. The second conductive path includes an indicator component. The indicator component is comprised of first layer comprised of a colored material, and a second layer comprised of an electrically conductive material deposited onto the first layer. The second layer has a region of increased resistance. An inner cavity is located above the region of increased resistance on the second layer. A third layer comprised of a transparent, polymeric material covers the cavity and the first and second layers.
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申请公布号 |
US6456189(B1) |
申请公布日期 |
2002.09.24 |
申请号 |
US20000724154 |
申请日期 |
2000.11.28 |
申请人 |
FERRAZ SHAWMUT INC. |
发明人 |
MOSESIAN JERRY L.;WILKINS ROBERT |
分类号 |
H01H85/30;(IPC1-7):H01H85/30;G01R31/07 |
主分类号 |
H01H85/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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