Portable lighting device
US8366290B2 · kind B2 · utility
49Cited by
124References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 14, 2009 |
| Grant date | Feb 5, 2013 |
| Priority date | — |
| Expiry date | Mar 2, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A flashlight having a main power circuit and a barrel is disclosed. The main power circuit includes a light source and a portable power source for supporting the light source. The barrel is not within the main power circuit. The flashlight also has a ball for holding the light source. The light source is fit and in contact with the inner surface of the ball. The outer circumference of the ball has an array of fin-like protrusions for effectively dissipating heat from the light source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.