Spiral wound fuse bodies
US4445106A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 7, 1980 |
| Grant date | Apr 24, 1984 |
| Priority date | — |
| Expiry date | Oct 7, 2000 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H85/185
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A spiral wound fuse body comprises a core of insulating material formed by a limp, dead yarn made of twisted together initially sizing-coated strands of fine ceramic filaments, where the sizing was subsequently removed so that there is no sizing to leave a conductive residue under fuse blowing conditions. Such a fuse body is mass produced by spiral winding fuse wire upon a continuous length of said yarn unwinding from a spool upon which the yarn was wound when the sizing was removed. The resulting self-supporting body can be wound into rolls and subsequently unwound so that individual fuse bodies can be severed from the end of the unwinding roll of fuse body-forming material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.