Protection cutting apparatus provided with an arc breaking screen
US4849591A · kind A · utility
7Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 17, 1987 |
| Grant date | Jul 18, 1989 |
| Priority date | — |
| Expiry date | Dec 17, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H9/32
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Electromechanical protection cutting apparatus comprising a magnetic tripping device and an arc-breaking screen which may be interleaved between at least one fixed contact and one movable contact during an opening caused by the tripping device. The stop (24) associated with the casing (11) of the apparatus to receive the breaking screen (12) is deformable and so arranged as not to restore immediately to the screen the kinetic energy received therefrom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.