Support assembly for fusible element of a high voltage fuse
US4057775A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 19, 1975 |
| Grant date | Nov 8, 1977 |
| Priority date | — |
| Expiry date | Nov 19, 1995 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H85/185
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A support assembly for a helically wound fusible element of a high voltage fuse is fabricated from two identical pieces of insulating material that are formed with mating center slots so that the pieces can be reversed and joined one over the other along the slots to form a x-shaped support member. Finger projections having recesses for supporting a fusible element are formed along the edges of the pieces in such a positional relationship that when the pieces are joined together, the recesses are positioned to form the required helical path for the fusible element. A metallic terminator member may be mounted at each end of the support member to position and mount the support member within the fuse in a fixed position. The terminator members include a center keyed opening that receives the support member and positions and retains the support member. A wire retainer can be used to engage grooves in the ends of the support member that extend through the keyed opening to lock the terminator member to the support member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.