Battery powered electrical appliance for personal hygiene
US11637438B2 · kind B2 · utility
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0References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 19, 2021 |
| Grant date | Apr 25, 2023 |
| Priority date | — |
| Expiry date | Jan 6, 2042 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C17/221
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention relates to the field of battery powered electrical appliances or personal hygiene, in particular to a hair removal device such as an electric shaver or epilator as well as an electric toothbrush. A control device for a battery powered electrical appliance for personal hygiene is described, wherein the control device is adapted to cause the battery powered electrical appliance to perform automated contact fritting of a battery contact by controlling the battery powered electrical appliance such that a current pulse exceeding a wetting threshold is applied across the battery contact during a standby period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.