Circuit breaker
US6034341A · kind A · utility
0Cited by
10References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 8, 1999 |
| Grant date | Mar 7, 2000 |
| Priority date | — |
| Expiry date | Mar 8, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H3/42
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In response to the movement of a moving contact which can move with small force for a large distance until it contacts a stationary contact and requires large force to move for a small distance after the contacting, three cam means including a toggle roller and a toggle cam, a coupling shaft roller and a closing cam, and a closing cam and an operation lever roller, respectively are provided to effectively distribute the closing force of a closing spring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.