End fitting for high-voltage fuse
US4153893A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 27, 1977 |
| Grant date | May 8, 1979 |
| Priority date | — |
| Expiry date | Sep 27, 1997 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H85/303
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An improved end fitting for a high-voltage fuse is disclosed. The fuse is of the general type having a movable striker pin which resides in a first position as long as a fusible element of the fuse remains intact. Should the fusible element cease to be intact, through fusing thereof or mishandling of the fuse, the striker pin moves to a second position to partially exit beyond an end of the fuse when a sharp end of the striker pin pierces a seal at the fuse end. The improved end fitting is removably mountable to the fuse and includes a body having a bore therethrough. The first end of the body surrounds and encloses the seal. A rod, mounted for movement in the bore at the end of the body, resides in a first normal location when the striker pin is in the first normal position, and in a second location when the striker pin is in the second position. Facilities which indicate that the rod is in the second location may include a vividly colored portion of the rod which is visible only when the rod is in the second location. The end fitting is so designed that it prevents the escape from the second end of the body of gas vented from the pierced seal. The end fitting, however, does permi…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.