Gas operated mechanism having automatic pressure regulator

Details Gas operated mechanism having automatic pressure regulator Gas operated mechanism having automatic pressure regulator

1980-06-02

1983-02-15

Cangialosi, Sal

Ordnance

Automatic

Gas piston type

89193, F41D 508, F41D 510

Patent

active

043734235

ABSTRACT:
A pistol having barrel and a gas operating mechanism coaxially supported on the barrel for axial movement relative thereto and defining an annular gas chamber surrounding an associated portion of the barrel. The gas operating mechanism includes a piston supported for movement relative to the barrel and a regulator plunger disposed generally within the piston, biased toward the piston, and supported for movement relative to both the barrel and the piston. Gases of explosion enter the gas chamber through gas ports in the barrel to move the piston and thereby operate extracting, ejecting and cocking mechanisms. The plunger moves away from the piston in response to predetermined pressure within the chamber to increase the volume of the chamber and decrease pressure therein. The plunger may move to a position wherein gases of explosion are vented from the gas chamber to atmosphere.

REFERENCES:
patent: 678969 (1901-07-01), Mclean
patent: 1066487 (1913-07-01), Giletta
patent: 3273460 (1966-09-01), Mason
patent: 3968727 (1976-07-01), Hyytinen
patent: 3988964 (1976-11-01), Moore
patent: 3990348 (1976-11-01), Vesamaa

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