Photographic flashlight apparatus
US4196458A · kind A · utility
7Cited by
1References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 17, 1978 |
| Grant date | Apr 1, 1980 |
| Priority date | — |
| Expiry date | Jul 17, 1998 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B41/32
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A flashlight apparatus includes a power switch, formed by a changeover switch, which is connected in a path to discharge a primary discharge capacitor and a trigger capacitor in its off condition to disable a flashlight operation. Simultaneously, a neon tube light which indicates the completion of charging of the primary discharge capacitor is turned off, indicating the off position of the power switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.