Prevention of electro-chemical corrosion at charging contacts of a battery-powered handpiece and its charger device
US7733056B2 · kind B2 · utility
12Cited by
8References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 21, 2004 |
| Grant date | Jun 8, 2010 |
| Priority date | — |
| Expiry date | Feb 19, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention relates to the prevention of electro-chemical corrosion at charging pins, especially of a battery-powered handpiece and its charging station.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.