Operating mechanism of a miniature electrical circuit breaker
US4916420A · kind A · utility
90Cited by
1References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 17, 1988 |
| Grant date | Apr 10, 1990 |
| Priority date | — |
| Expiry date | May 17, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H71/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An operating mechanism of an electrical circuit breaker comprises a handle coupled to a transmission rod to form a toggle, a movable contact support device having a plate mounted with rotation on a pivot, and a mechanical link breakable by the action of a trip lever. The link is formed by a retaining catch of the trip lever cooperating with a latch pivotally mounted on a spindle of the plate. The rod is coupled directly to the latch, the assembly constituting a gearing-down stage enabling the tripping force to be reduced. The bimetal strip is connected to the trip lever by a rotating tie-rod with uni-directional transmission.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.