Movable contact arrangement for a low-voltage circuit breaker with a pivot bearing
US6188031A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 10, 1999 |
| Grant date | Feb 13, 2001 |
| Priority date | — |
| Expiry date | Dec 10, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H73/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A movable contact arrangement for a low-voltage circuit breaker which has a contact lever bracket equipped with contact levers and may move around a pivot bearing for opening and closing the circuit breaker. A journal, which engages with a bearing opening close to an inner end of a stationary conductor segment, is molded onto a main arm of the contact lever bracket. The journal is positioned more or less in the center and has a length that does not exceed the width of the contact arrangement. The bearing opening is also positioned within the width of the contact arrangement. This reduces the width of the circuit breaker, especially in multipole designs, while simultaneously improving the load carrying capacity and service life of the pivot bearing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.