Encased flashlight
US5317490A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 28, 1992 |
| Grant date | May 31, 1994 |
| Priority date | — |
| Expiry date | Dec 28, 2012 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21L2/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A flashlight incorporating operative components that include resilient parts, made of compressable rubber or a polymer, is used for providing the opening or closing of the circuitry for the flashlight to energize or de-energize it, when manual pressure is applied to the back end or sealing cap for the device. The flashlight includes its casing member, with a light exposing end, having an aperture through which the bulb projects its illumination, and a back or battery insertion end, with a sealing means or end cap for closing the casing at this location. A light source, such as a bulb, a battery, a connector for joining the light source to the battery, a fixed contact member integral of the battery, a movable contact member for opening and closing its circuitry, and a resilient member arranged intermediately between the movable contact member and the battery, such that when manual pressure is applied, the resilient member collapses, providing for contact between the electrical components for the flashlight to achieve its illumination. The resilient member being an O-ring or a sleeve, and the connector cooperates with the sleeve to make permanent contact with the movable contact memb…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.