Protective fuse shield for disconnect switches
US5686708A · kind A · utility
7Cited by
6References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 28, 1996 |
| Grant date | Nov 11, 1997 |
| Priority date | — |
| Expiry date | Jun 28, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H9/104
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A fuse shield plate is pivotally mounted over the fuses which are electrically associated with a disconnect switch. The switch operating lever is connected to an interlock rod which extends to a dead front receptacle. Interfitting elements on the fuse shield and the interlock rod prevent the fuse shield from being opened when the operating lever has been moved to close the switch contacts. When the fuse shield is opened to expose the fuses, the interfitting elements prevent the operating lever from being moved to close the switch contacts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.