Breech locking system for self loading firearms
US4915011A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 7, 1988 |
| Grant date | Apr 10, 1990 |
| Priority date | — |
| Expiry date | Sep 7, 2008 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF41A17/42
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A self loading firearm of the locked breech, short recoil pistol type has a barrel and a breech block slide provided with a separate locking block accommodated between the underside of the barrel and the upper surface of a movable trigger guard. The locking block is provided with means for positively locking the barrel to the slide during the high pressure period of the firing cycle of the firearm and means for enabling release of the slide from the barrel during the remainder of the firing cycle. Means described for permitting release of the locking block comprise a rotary catch which is rotatable between a position to hold the locking block in its barrel retaining position and a position in which the locking block is able to release the barrel. The rotary catch is movable axially between a position in which it is rotatable and a position in which it is non-rotatable, the locking block normally being held in its non-rotatable position by the hold open means and being released from that position when the hold open means is in its operative position to hold the slide fully retracted from its forward firing position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.