Portable lighting devices
US9801256B2 · kind B2 · utility
10Cited by
1References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 6, 2016 |
| Grant date | Oct 24, 2017 |
| Priority date | — |
| Expiry date | Dec 6, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49828
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A flashlight uses a reverse battery protection circuit to prevent current from flowing in a power control circuit when at least one battery is held in a reversed orientation, rather than a correct orientation, in a battery compartment of the flashlight.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.