Perforating charge case
US6464019B1 · kind B1 · utility
27Cited by
5References
47Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 8, 2000 |
| Grant date | Oct 15, 2002 |
| Priority date | — |
| Expiry date | Dec 6, 2020 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/117
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A perforating charge case is made by a process that includes cold forming a material into a shape for the perforating charge case. The cold forming produces additional recrystallization nucleation sites in the material. After the cold forming, the material may be annealed to decrease sizes of grains of the material to improve a ductility of the material to increase fragment sizes of the perforating charge case when an explosive that is placed inside the perforating charge case detonates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.