Variable light beam flashlight and recharging unit
US4388673A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 22, 1981 |
| Grant date | Jun 14, 1983 |
| Priority date | — |
| Expiry date | Jun 22, 2001 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21V14/025
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The flashlight of the invention includes an improved mechanism for selectively varying the light beam intensity and area. The mechanism includes a cam member, and abutting head and outer switch housing shoulders, which enable movement of the bulb forwardly and rearwardly relative to the light reflector by rotation of the head of the flashlight, so as to selectively vary the intensity and area of the light beam, while preventing axial movement of the head and light reflector. The flashlight includes structural means for recharging its battery; and a battery charger/flashlight holder is designed to retain the flashlight and charge the batteries when the flashlight is stored therein. A shield in the lens prevents damage from heat emitted by a high intensity halogen bulb.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.