Striker pin device for an electric fuse
US5367281A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 30, 1993 |
| Grant date | Nov 22, 1994 |
| Priority date | — |
| Expiry date | Dec 30, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H85/303
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A striker pin device for providing a visual indication of an operated condition of an associated fuse, comprising a tubular housing coaxially arranged within the fuse with an end of the housing in contact with an end of the fuse. The tubular housing has a closure structure comprised of a one-piece integrally formed closure member having a projection protruding out of the housing and an opened end with a cavity. A piston with a central projection received in the opened end of the closure member forms a gas tight enclosure containing pyrotechnic material. An ignition element is attached to a brass pin which extends through the projection of the closure member and is connected to a tubular terminal or electrical conductor member which is attached to a high resistance pilot wire, which is stretched through the fuse. The ignition element extends through the pyrotechnic material, between the contacting surfaces of the closure member and the piston, and between the contacting surfaces of the piston and tubular housing for electrical connection between the ignition element and the housing. Ignition of the pyrotechnic material drives the piston and striker pin toward the opposite end of the…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.