Photoflash lamp with improved primer
US4659308A · kind A · utility
1Cited by
15References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 10, 1985 |
| Grant date | Apr 21, 1987 |
| Priority date | — |
| Expiry date | Dec 10, 2005 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21K5/02
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A high-voltage photoflash lamp is provided wherein the lead-in wires are electrically insulated from the metallic shreds therein by including electrically insulating beads in the primer material. The primer also includes combustible metal powder, an oxidizing agent, and a binder, wherein at least part of the combustible metal powder in the primer is in large particle form.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.