Magnetic actuating mechanism
US4801910A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 10, 1988 |
| Grant date | Jan 31, 1989 |
| Priority date | — |
| Expiry date | Feb 10, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H71/322
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A magnetic actuating or trip mechanism for use with a circuit breaker including an armature, a permanent magnet for biasing the armature to a biased position, a first magnetic member having an armature guide, a second magnet member, an electromagnetic coil including a first winding for urging the armature from the biased position and a second winding for urging the armature from the biased position, a compression spring for urging the armature from the biased position, a fastener for fastening the first and second members to the permanent magnet, and recesses for locating the electromagnetic coil relative to the first and second members. The coil includes an armature opening and the first and second members each include a permanent magnet mounting surface and a coil mounting surface, the permanent magnet mounting surface includes a ridge for preventing the members from rotating relative to the permanent magnet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.