Focusable flashlight
US4951183A · kind A · utility
46Cited by
5References
1Claims
0Family size
Inventor
Key dates
| Filing date | Jan 16, 1990 |
| Grant date | Aug 21, 1990 |
| Priority date | — |
| Expiry date | Jan 16, 2010 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21V19/047
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A flashlight includes a tube with a head provided at a front end. A light reflector is disposed in a front end of the head. A casing is force-fitted within the front end of the tube. A switch is fixed on the casing. An end cap, a spring and an end plate are disposed in an insulator which is received in a retainer. A light bulb is retained in the retainer. The switcher controls an electrical circuit of the flashlight. The light bulb is stable relative to the tube so that a rotation of the head relative to the tube makes the light reflector move relative to the light bulb.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.