Electric delay detonator
US4402269A · kind A · utility
15Cited by
10References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 29, 1981 |
| Grant date | Sep 6, 1983 |
| Priority date | — |
| Expiry date | Jun 29, 2001 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF42B3/16
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A delay detonator made from an inner and outer casing combination which rces the number of individual components. The detonator uses reduced volume with increased pressure to permit control of the pyrotechnic delay mix. The amount of free space to start combustion is limited as compared to previous delay detonators. An overlapping lip arrangement of the inner and outer casing and an inner sleeve permit welding at the outer edge to permanently lock the distance between detonator components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.