Electric switch, in particular a load switch or electric circuit breaker
US5294903A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 1992 |
| Grant date | Mar 15, 1994 |
| Priority date | — |
| Expiry date | Dec 18, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H71/526
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electric circuit breaker or load switch has at least one fixed contact, a movable contact and a spring system having a rigid arm and a leaf spring. The leaf spring is hinged to the arm to provide an arm-leaf spring assembly in the form of a toggle mechanism, having a first end hinged to a movably supported element bearing the movable contact, and a second end which is hingedly supported at a distance from and opposite the fixed contact. The second end, the first contact and the movable element are positioned such that the arm-leaf spring assembly in both the open and closed position of the contacts assumes a deflected position, by which the connection length of the switch is effectively reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.