Gas actuated operating mechanism for autoloading firearm

Details Gas actuated operating mechanism for autoloading firearm Gas actuated operating mechanism for autoloading firearm

1982-12-02

1985-03-19

Schafer, Richard E.

Ordnance

Automatic

Gas piston type

F41D 504

Patent

active

045051836

ABSTRACT:
A semiautomatic shotgun having a gas operating mechanism for unlocking a bolt and moving it from battery position. The operating mechanism includes an action bar and an inertia weight assembly which comprises a plurality of inertia elements. The inertia elements, the action bar and the bolt are arranged for movement relative to each other and impact at different times during the operating cycle. A return spring cooperates with the inertia weight assembly to maintain the various parts of the mechanism in fixed position relative to each other when the bolt is locked in battery.

REFERENCES:
patent: 2909101 (1959-10-01), Hillberg
patent: 3105411 (1963-10-01), Browning
patent: 3115063 (1963-12-01), Browning
patent: 3200710 (1965-08-01), Kelly et al.
patent: 3443477 (1969-05-01), Kaempf
patent: 3580132 (1971-05-01), Vartanian
patent: 3601002 (1971-08-01), Janson
patent: 3848511 (1974-11-01), Zanari

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