Dual-mode firing mechanism
US4212227A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 2, 1979 |
| Grant date | Jul 15, 1980 |
| Priority date | — |
| Expiry date | Jan 2, 1999 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF41A19/02
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A dual-mode firing mechanism for a high-rate-of-fire rifle capable of fir small arm cartridges conventionally by the application of a hammer, and inertially, bypassing the trigger mechanism, to provide sustained fire of a discrete number of cartridges in a burst. A trigger hammer fires the first round and simultaneously locks the firing pin in a firing position relative to an operating rod assembly. The operating rod assembly with the firing pin in the firing position, then cycles between a full forward or firing position and a short stroke rearward position in synchronism with fresh cartridges being inserted into the battery. The cycling continues until a last cartridge in the burst is fired. After the last round the mechanism returns to its original or non-firing position, and is ready for the next burst. The mechanism is rapid, for example, approximately 4,000 to 5,000 shots per minute can be fired in each three round burst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.