Arc extinguishing gas filtering device for electrical current switchgear and electrical current switchgear comprising this filtering device
US10347438B2 · kind B2 · utility
1Cited by
10References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 29, 2018 |
| Grant date | Jul 9, 2019 |
| Priority date | — |
| Expiry date | Mar 29, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H73/18
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An arc extinguishing gas filtering device for electrical current switchgear includes a porous central body including longitudinal channels and transverse channels which fluidically connect the longitudinal channels together, the longitudinal channels having a bent form; and a tight outer skin which surrounds the central body and which includes inlet orifices and outlet orifices, each longitudinal channel extending between an inlet orifice and an outlet orifice, the outer skin and the central body forming a rigid part in a single piece produced in a metallic material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.