Contoured thickness blank for ammunition cartridges
US8505457B2 · kind B2 · utility
1Cited by
22References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 14, 2011 |
| Grant date | Aug 13, 2013 |
| Priority date | — |
| Expiry date | Jul 14, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF42B33/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An austenitic stainless steel ammunition cartridge includes an outer region and a base, wherein the outer region is about 50%-80% of the thickness of the base, which serves to minimize the sidewall ironing required to form the cartridge. The cartridge blank can be formed by spin forming, compression forming, grinding, or a combination thereof. Tooling to form the insert can include at least a pair of blocks and inserts, at least one insert defining a centrally positioned aperture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.