Barrel extension extraction cam and barrel extension system
US12181235B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 23, 2023 |
| Grant date | Dec 31, 2024 |
| Priority date | — |
| Expiry date | Jun 28, 2043 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF41A21/482
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Embodiments of the present disclosure generally relate to bolt extraction systems and barrel extension systems for rifles, such as bolt-action rifles. In one or more embodiments, the bolt extraction system includes a bolt and a barrel extension which provide extraction cams and extraction lugs to utilize a screw action while assisting in the removal of the bolt head and a spent cartridge from the barrel extension. In other embodiments, the barrel extension system includes a barrel extension and a firearm receiver with a clamp assembly. The barrel extension has a threaded hole which aligns with an attachment hole disposed on the firearm receiver. A fastener couples the barrel extension to the firearm receiver via the attachment hole and the threaded hole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.