Silver-graphene tungsten material electrical contact tips of a low voltage circuit breaker
US11114254B2 · kind B2 · utility
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15Claims
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Key dates
| Filing date | Feb 7, 2020 |
| Grant date | Sep 7, 2021 |
| Priority date | — |
| Expiry date | Feb 7, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2300/036
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A circuit breaker including at least two contact tip that comprise an electrical contact material comprising silver (Ag) and tungsten (W). The contact tip further comprises a graphene material (Gr) additively mixed in Ag as being denoted as AgGr0.3% or AgGr0.5% which is mixed with tungsten (W) to form (AgGr0.3)W50 or (AgGr0.5)W50 called a silver-graphene tungsten composite material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.