Impedance contact assembly for an electric circuit breaker
US4433221A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 25, 1982 |
| Grant date | Feb 21, 1984 |
| Priority date | — |
| Expiry date | Aug 25, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H1/385
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
For connecting a shunting impedance to a contact rod of a circuit breaker, there is provided an impedance contact assembly comprising a metal ring, two slots in the ring at diametrically-opposed locations, and a U-shaped metallic spring member having two spaced-apart arms and a bight portion. The spring member, which is positioned with its bight portion in one slot and the free ends of its arms in the other slot, has a resilience tending to bias the arms apart and against the walls of said other slot. The contact rod has a path of movement that extends between the spaced arms so that the arms slidably engage the contact rod at its opposite sides as the contact rod moves along this path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.