Driving mechanism for switching apparatus with pressure contacts
US4152562A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 18, 1978 |
| Grant date | May 1, 1979 |
| Priority date | — |
| Expiry date | Apr 18, 1998 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2033/6667
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A driving mechanism for use with pressure contacts wherein the mechanism is provided with a drive means for opening and closing the contacts and wherein the drive means undergoes a driving stroke in bringing the contacts to a closed position. The mechanism is further provided with a closing spring means for actuating the drive means to initiate closing of the contacts and a second spring means responsive to the aforesaid actuation of the drive means and which is cocked there during for actuating the first means to initiate opening of the contacts. In accord with the invention, a pressure spring means for applying pressure to the contacts is also provided; the latter pressure spring means being responsive to the drive means and cocked thereby during a substantial portion of the closing driving stroke.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.