Process for detecting a misfired explosive
US4063510A · kind A · utility
3Cited by
3References
12Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Aug 16, 1976 |
| Grant date | Dec 20, 1977 |
| Priority date | — |
| Expiry date | Aug 16, 1996 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF42D5/02
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A process for indirectly detecting a misfired explosive (cartridge) which comprises charging a ferrite magnet as a tracer in an explosive charging portion together with an explosive in a blasting method and detecting the magnetic flux of said magnet charged in a misfired explosive cartridge at a site of explosion after blasting by a magnet measuring instrument, characterized by using as said tracer a ferrite magnet calcined at a temperature less than 1000.degree. C. and detecting this magnet by said magnetic detector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.