Battery charger
US4873479A · kind A · utility
34Cited by
4References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 20, 1988 |
| Grant date | Oct 10, 1989 |
| Priority date | — |
| Expiry date | Sep 20, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S439/929
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A battery charger has a recess for accommodating a battery pack, and charging electrodes projecting into the recess. The battery pack is charged when the battery pack is inserted into the recess and battery electrodes of the battery pack are brought into contact with the charging electrodes. In an improvement of the battery charger, the recess has portions of different shapes corresponding to respective shapes of a plurality of different battery packs for accommodating the different battery packs, and the charging electrodes have portions projecting into the recess portions respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.