Firearm lock mechanism
US12215941B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 7, 2023 |
| Grant date | Feb 4, 2025 |
| Priority date | — |
| Expiry date | Aug 7, 2043 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF41C3/14
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A firearm lock mechanism includes a trigger, a hammer, a stirrup connected to the hammer at a stirrup connection point, and a spring operably connected to the stirrup at a spring connection point. Progressive pivoting of the trigger drives corresponding progressive pivoting of the hammer. The stirrup connection point is disposed forward of the hammer pivot point. One of the spring connection point, hammer pivot point, and stirrup connection point is offset relative to and laterally spaced between the others of the points to be a vertex of an intermediate angle cooperatively defined by the points. The angle increases in magnitude as the trigger drives pivoting of the hammer. A toggle line is defined between the trigger pivot point and the hammer pivot point. The trigger contacts the hammer at a contact point that shifts across the toggle line as the trigger drives pivoting of the hammer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.