Arc suppressing current interrupter
US5126517A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 11, 1990 |
| Grant date | Jun 30, 1992 |
| Priority date | — |
| Expiry date | Sep 11, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H3/40
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A current interrupter in which a first movable, insulating, gear carries a contact blade. The blade extends out from this movable gear and forms a contact which makes and breaks with a stationary contact upon movement of the gear. A second insulating gear has a set of teeth which engage the teeth on the first gear. The second gear has a cavity into which the extended contact fits. Movement of the first gear in a direction to break the contact, causes the engaged teeth to drive the extended contact into the cavity, thereby insulating the movable contact from the stationary contact. The interlocking gear teeth create a tortuous path for the arc and provide a large over surface distance for dielectric strength.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.