Explosive boosting device for low-sensitivity blasting agents
US4166417A · kind A · utility
Inventors
Key dates
| Filing date | Dec 27, 1977 |
| Grant date | Sep 4, 1979 |
| Priority date | — |
| Expiry date | Dec 27, 1997 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF42D1/04
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A boosting device including a thin, cylindrical shell of high explosive, such as PETN, which may be formed by a spiral wrap of detonating cord. The shell is formed around an inert core which is either a solid cylindrical body, a hollow cylindrical body or a web-like structure having radial spokes or a hollow center. Detonation of the shell is initiated at one point on the shell, and the detonation proceeds along opposite sides of the cylindrical shell to a point diametrically opposite the initiation point where the detonation fronts meet thereby producing a shock reinforcing effect. The shock reinforcing effect allows a relatively small amount of explosive to initiate even low sensitivity blasting agents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.