Cartridge base and plastic cartridge case assembly for ammunition cartridge
US8573126B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 30, 2010 |
| Grant date | Nov 5, 2013 |
| Priority date | — |
| Expiry date | Jan 4, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF42B5/36
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A cartridge for ammunition has a base with an axial end section. An annular wall extends from the enlarged outer peripheral lip section to an opposite end. The axial end section has a primer cavity therein and a radially outwardly extending peripheral extraction lip. An annular ledge is axially positioned at an inner end of said primer cavity and radially extends inwardly from said annular wall. A passage has a reduced diameter compared to the primer cavity and extends through the annular ledge. A main charge cavity is at an opposite side of the ledge from the primer cavity. A knurl section is on an outer surface of said cylindrical wall. A cartridge case is attached to the base about said knurl section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.