Automatic protection switch with visible disconnecting action and manual resetting
US4650937A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 4, 1984 |
| Grant date | Mar 17, 1987 |
| Priority date | — |
| Expiry date | Oct 4, 2004 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H71/60
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electric switch apparatus for protecting an electric circuit, said apparatus comprising a case, a pivoting drawer connected to the case and adapted to be manually pivoted from a closed position to an open position and reversely, a switch having a fixed and a movable contact, the movable contact being mechanically linked to the drawer for simultaneous opening therewith and a breaking member for automatically breaking an electric circuit connected across two terminals of the case, the said breaking member operating in case of an overflow of current in the said circuit, the movable contact being able to be separated from the fixed contact under the action of an actuation member comprising a spring and a magnetizable member, said actuating member cooperating with a coil placed in the circuit and being reset during a manual opening and closing movement of the drawer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.