Polymer ammunition article designed for use across a wide temperature range
US12247818B2 · kind B2 · utility
0Cited by
196References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 26, 2019 |
| Grant date | Mar 11, 2025 |
| Priority date | — |
| Expiry date | Jul 26, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF42B5/307
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An ammunition article including a polymer cartridge case with a mouth at a first end, a second end opposite the first end, and a propellant chamber located between the first end and the second end. A projectile can be fitted into the mouth and a metal base insert can be joined at the second end. The metal base insert can include a primer. The metal base insert and the polymer cartridge case remain joined together as a single piece assembly upon loading, firing and removal from a chamber of a firearm for a polymer case temperature between about −65° F. (−54° C.) to about 165° F. (74° C.).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.