Shaped charge assembly with truncated liner
US5777257A · kind A · utility
17Cited by
8References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 14, 1997 |
| Grant date | Jul 7, 1998 |
| Priority date | — |
| Expiry date | Mar 14, 2017 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02B2017/0052
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The invention relates to an explosive charge assembly for cutting tubular members, particularly underwater. The assembly is lowered into the tubular member to a distance where the cut is to be performed. A shaped charge carrier has a pair of parallel circular plates, a casing unitary connected to the plates and a truncated shaped charge liner. An inflatable bladder surrounding the casing expands to create a stand off distance between the wall of the tubular member and the shell of the assembly. A plurality of centralizer members allow to adjust position of the shell in the tubular member prior to detonation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.