Ordnance – Automatic – Convertible gun operation
Patent
1992-06-11
1993-12-28
Bentley, Stephen C.
Ordnance
Automatic
Convertible gun operation
42 72, 89193, F41A 528
Patent
active
052729567
ABSTRACT:
In an automatic weapon system such as the AR-15/M-16, the passage of propellant gas-carried heat, powder residues, and dirt to the bolt carrier and the upper receiver of the weapon is eliminated. The standard recoil spring housed in the buttstock of the weapon can be eliminated to produce a weapon with a folding stock or a machine pistol. Propelling gasses drive a piston which in turn drives a piston rod which is integrally coupled with the carrier key of the weapon. There is no relative movement between the rod and the carrier key. Therefore, no impact is delivered by the rod to the carrier. Longer carrier life is assured. The original recoil spring can be eliminated by a recoil spring on the piston rod. The ability to vary the volume of the gas chamber in which the piston is driven permits control of the firing rate of the weapon. A further enhancement permits the total blockage of propellant gasses from the gas cylinder so that the weapon may only be fired in a single action, single shot mode.
REFERENCES:
patent: 1042363 (1912-10-01), McClean
patent: 1293396 (1919-02-01), Fox
patent: 1315215 (1919-09-01), Davidson
patent: 1802816 (1931-04-01), Holek
patent: 3369316 (1968-02-01), Miller
patent: 3675534 (1972-07-01), Beretta
patent: 4197784 (1980-04-01), Williams
patent: 4244273 (1981-01-01), Langendorfer, Jr. et al.
Bentley Stephen C.
Duffy James F.
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