Step switch
US4360719A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 6, 1980 |
| Grant date | Nov 23, 1982 |
| Priority date | — |
| Expiry date | Oct 6, 2000 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H5/16
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A rotary switch comprising a rotatable driving shaft and a coaxial driven switching shaft has a coupling arranged between the shafts for indexing the rotary movement of the switching shaft in response to the rotation of the driving shaft. The coupling includes driving and driven coupling parts respectively keyed to the driving and driven shaft, the coupling parts having peripheries coaxial with the shafts. A spring having two ends respectively engaging the coupling parts is tensioned in the direction of the coupling part peripheries and a blocking device controlled by the rotary position of the shafts in relation to each other respectively blocks and unblocks the rotary movement of the driven coupling part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.