Miniature flashlight device
US6598991B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 10, 2001 |
| Grant date | Jul 29, 2003 |
| Priority date | — |
| Expiry date | Jan 10, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21V23/0414
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A miniature flashlight device includes a housing having a cavity, a pair of magnets mounted to the housing, and a light generating assembly disposed in the cavity of the housing. The light generating assembly includes a lamp, at least one battery and a spring-loaded switch connected in an electrical circuit with the lamp and battery and activatable to electrically connect and disconnect the battery with the lamp. The magnets are arranged such that when the housing is placed on a ferromagnetic surface the magnets attract the surface with sufficient force to activate the spring-loaded switch and open the circuit, turning the device off. When the magnets are disengaged from the surface, the spring brings the switch into the closed circuit position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.