Blade tip for puncturing cupro-nickel seal cup
US6813127B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2002 |
| Grant date | Nov 2, 2004 |
| Priority date | — |
| Expiry date | Nov 17, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H33/666
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A vacuum arc interrupter that includes a vacuum chamber assembly and a pressure chamber assembly. The vacuum chamber assembly has a first conductor coupled to a power line, a non-conductive housing and a seal cup. The pressure chamber assembly has a second conductor coupled to a ground, a pressure chamber and a bullet assembly. The pressure chamber assembly is disposed adjacent to the vacuum chamber assembly. The bullet assembly is disposed in the pressure chamber and is structured to move between a first position and a second position. The bullet assembly has a metal lance with a blade portion. The blade portion is structured to puncture the seal cup.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.