Method and apparatus for displacing material and projectile thereof
US7681504B2 · kind B2 · utility
17Cited by
9References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 26, 2003 |
| Grant date | Mar 23, 2010 |
| Priority date | — |
| Expiry date | Feb 5, 2026 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF42B10/06
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Hard material can be displaced by firing a frangible projectile from a firing device. The projectile has a rear portion that engages the bore of the barrel of the firing device and a front portion that is rotatably journaled to the rear portion. The front portion can be frangible to allow maximum displacement of the hard material. Specifically, the front portion has a core and a plurality of fins extending from the core. At impact, as the fins penetrate the target, the fins separate from the core and spread radially outwardly from the core.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.