Clutch for a rotary switch drive shaft
US4002088A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 10, 1975 |
| Grant date | Jan 11, 1977 |
| Priority date | — |
| Expiry date | Apr 10, 1995 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H3/58
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A clutch for disconnecting a drive shaft of an electric switch from a switch actuating element which includes a rotary shaft, particularly useful for the return or trip-free release of a rotary switch, comprises a differential gearing coupled between the rotary shaft of the actuating element and the switch drive shaft. The gearing includes a first gear connected to the rotary shaft for rotation therewith, a second gear connected to the drive shaft for rotation therewith, idler gears meshing with the first and second gears and transmitting rotation from one to the other, and a housing carrying the idler gears and mounted for rotation. A releasable latch carries the idler gears and is arranged selectively to permit and stop rotation of the gearing housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.