Single-use shell casing
US11650032B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Dec 4, 2019 |
| Grant date | May 16, 2023 |
| Priority date | — |
| Expiry date | Dec 22, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF42C19/083
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A modified bullet cartridge having a score line formed around a primer bore. The score line may be positioned symmetrically or asymmetrically about the primer bore. The score line may have a regular or irregular two-dimensional geometric shape. A modified bullet cartridge having a counter-bore formed superposed about a primer bore. The counter-bore may have a vertical counter-bore extension and/or a radial counter-bore extension. Adhesive is positioned in the counter-bore about a primer secured in the primer bore. The primer may have a radial flange extending radially from an exterior sidewall of the primer. The flange registers against a bottom surface of the counterbore, or within a radial flange extension if present. Adhesive is used to lock the primer flange against the counter-bore and/or radial counter-bore extension. The combination of the counter-bore, adhesive and optionally the flanged primer locks the primer to the bullet cartridge to render the cartridge unusable after one use. The bullet cartridge is rendered waterproof with the use of the adhesive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.