Drive device with a locking device to prevent switch shaft rebound
US5743385A · kind A · utility
4Cited by
5References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 5, 1997 |
| Grant date | Apr 28, 1998 |
| Priority date | — |
| Expiry date | Feb 5, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2001/508
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A locking device is fitted in a drive device of a power switch to prevent the switch shaft from rebounding from its off position. The locking device (6) comprises a retainer (7) on the switch shaft (1) and a clamp (10) pivotable about a fixed bearing. The clamp (10) has an arc-shaped aperture to engage with the retainer (7) with considerable overlaps. The clamp (10) is actuated by a working surface on the retainer (7) so that its aperture (17) engages over the retainer (7).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.