High pressure rifle cartridge with primer
US10976144B1 · kind B1 · utility
44Cited by
72References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 5, 2019 |
| Grant date | Apr 13, 2021 |
| Priority date | — |
| Expiry date | Mar 5, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF42C19/0807
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A cartridge that generates higher than typical chamber pressures has an enhanced means of primer retention for retaining the primer in the primer recess of the casing. The means may be a lip folded onto a conical surface, a annular groove to receive deformed primer wall portion material upon detonation, a concavity in the rearward facing wall of the primer, a check valve in the flash tube to inhibit propellant gases from reaching the primer recess, or specifically configured primers with a greater length than diameter and with greater wall thicknesses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.