Device for mutually locking the actuation of at least two power switches
US5895898A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 14, 1997 |
| Grant date | Apr 20, 1999 |
| Priority date | — |
| Expiry date | Aug 14, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2009/267
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A device for mutually locking the actuation of at least two power switches. The device includes an energy accumulator, such as a spring, assigned to each of the power switches and loaded by the rotation of a switching shaft, to thereby actuate a flexible transmission leading to an evaluation apparatus which can prevent actuation of one of the switches. The energy accumulator improves the reliability of the mechanical locking mechanism and allows a lighter transmission to be used. Plural switches may be locked or activated by connecting two flexible transmissions to a single switching shaft and to two different evaluation apparatuses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.