Multi-charge gas-cylinder pistol

Details Multi-charge gas-cylinder pistol Multi-charge gas-cylinder pistol

2001-10-30

2002-12-17

Carone, Michael J. (Department: 3641)

Mechanical guns and projectors

Fluid pressure

With control for discharge of fluid pressure

C124S076000, C124S031000, C124S052000

Reexamination Certificate

active

06494194

ABSTRACT:

FIELD OF THE ART
The present invention relates to compressed gas-operated firearms and more particularly to repeating gas cylinder pistols with conveyer feed of bullets for shooting.
STATE OF THE ART
Known in the art are technical solutions of a repeating gas cylinder pistol shooting ball bullets: U.S. Pat. No. 3,077,875, Cl. 124-11, 1963; U.S. Pat. No. 3,207,143, Cl. 124-11, 1965; U.S. Pat. No. 3,447,527, Cl. 124-52, 1969; U.S. Pat. No. 3,527,194, Cl. 124-11, 1970; U.S. Pat. No. 4,147,152, Cl. 124-76, 1979; Patent EP 0,625,689, 1994; Patent RU 2,084,802, Cl. 6F41B Nov. 6, 1997. However, the reliability and shooting rate of these constructions are low.
The prior art most relevant to the present invention is a repeating gas cylinder pistol shooting ball bullets (Patent RU No. 2,118,781, Cl. F41B Nov. 6, 1998), comprising a pistol frame with a grip, a movable barrel with an opening for introducing bullets and with a load and a mainspring located thereon between the load and a slider base disposed in the frame at the end of the frame, a magazine, an insert disposed within the grip and the other end of the frame, with a gas supply passage inside the insert, a gas cylinder disposed with the help of a sleeve, a cover, a loop in a nut in the grip and communicated via a seal through a piercing needle of the gas cylinder with a passage for supplying a portion of gas to a chamber of a valve for supplying a portion of gas, a valve for supplying a portion of gas, disposed inside a body of the valve for supplying a portion of gas, and a body of the valve for supplying a portion of gas disposed inside the insert, a frame attached to the pistol frame and to the grip, a trigger secured by a rotation axle on the frame, a sear arm connected to a return spring secured on the frame, a lock, wherein the magazine with a lifting spring is disposed with the help of a shoe, a compression spring, a latch and a hold-down spring in the grip between the gas cylinder separated by the inner wall of the grip from the magazine, the insert and the frame under the movable barrel, and is tightly pressed to the body of the valve for supplying a portion of gas, the movable barrel is set on the valve for supplying a portion of gas, which has openings for supplying a portion of gas to the movable barrel from the chamber of the valve for supplying a portion of gas, which chamber through openings in the body of the valve for supplying a portion of gas is communicated to the gas supply passage, the spring of the valve for supplying a portion of gas is disposed between the insert and the sleeve of the valve for supplying a portion of gas, disposed on the valve for supplying a portion of gas, the seal of the valve for supplying a portion of gas is disposed between the sleeve of the valve for supplying a portion of gas and the openings for supplying gas to the movable barrel, the sear arm is disposed on an axle of an arm of the trigger, an attachment is disposed on the lower part of the load, the safety lock is disposed in a through opening made in the pistol frame perpendicular to the axis of the movable barrel under the attachment, a blocking element is disposed in a recess made in the frame under the safety lock, a magnet is disposed in the chamber of the valve for supplying a portion of gas on the sleeve of the valve for supplying a portion of gas, an anti-retainer disposed in the form of a projection on the frame inside the pistol frame.
In spite of a number of advantages, such as the possibility of shooting with the movable barrel of the pistol in any position, even in the direction of action of the Earth's attraction force, and an increased shooting rate by combining the operations of winding the mainspring and introducing the ball bullet into the barrel only on pulling the trigger of the pistol, the above-described construction has a number of disadvantages: limitations to the shape and material of bullets, since the in the above-described construction it is possible to use only ball steel or steel-core bullets; shortened service life of the striker mechanism because of constant mechanical effect of the barrel on the valve at the moment of shooting; a small capacity of the magazine; a low reliability, because the process of feeding bullets to the shooting position is not controllable, the probability of a misfire being thus increased, and because a shot may be taken even in the absence of the magazine in the pistol grip.
ESSENCE OF THE INVENTION
The present invention is directed to the provision of a repeating gas cylinder pistol with such structural elements and connections therebetween, that would make it possible to increase substantially the reliability, to improve and broaden the functional potentialities, and to raise the performance characteristics of the pistol.
Said object is accomplished by the provision of a repeating compressed-gas operated pistol, comprising a hollow frame made integral with a grip and a trigger bow, a movable barrel with a bullet bore, a load and a mainspring disposed on the barrel, a valve installed in a gas chamber inside the pistol frame, between the rear inner wall of which and the valve a spring is installed, which insures returning of the valve to the closed state after a portion of gas has come from the gas chamber to the bullet bore of the barrel, a valve body whose lower part is disposed in a depression in the rear part of the pistol frame above a gas cylinder which is installed in a rear hollow interior of the grip and via a sleeve, a nut and an end seal is communicated with the valve body, and via a piercing needle, a filter and a passage in the frame insures coming of a portion of gas to the gas chamber, a magazine, installed in a front hollow interior separated from a rear hollow interior of the grip by a partition, a striker-and-trigger mechanism installed inside the pistol frame and on the trigger bow and interacting with the movable barrel and the magazine for supplying bullets and portions of gas from the gas cylinder to the bullet bore of the barrel, a mechanism for installing a gas cylinder disposed below the gas cylinder in a lower broadened part of the rear hollow interior of the grip, in the rear hollow interior of the pistol frame a support is located, whose rear wall contacts the front wall of the magazine, a part of the support extending above the pistol frame serving to bear the barrel movable along the support under the action of the striker-and-trigger mechanism, the magazine insures conveyer supply of bullets to the shooting line and is equipped with containers, each container accommodating one bullet and being installed so that the upper part of the magazine, extending above the pistol frame, is disposed between the barrel and the valve, and a bullet opening provided in the front wall of the magazine, through which the bullet enters the bullet bore of the barrel under the effect of a portion of gas, is disposed coaxially with the bullet bore, the valve and the container which occupies such position before each shot, a breech mechanism is installed on top of the hollow pistol frame.
The mechanism for installing a gas cylinder comprises a bracket installed with the help of pins in the lower broadened part of the rear hollow interior of the grip, a front wall being disposed under a partition and adjoining the magazine, the surface of the wall lying in one plane with the surface of the partition adjoining the magazine; a lever installed in the rear part of the bracket on an axle of rotation, a frame and a loop mounted on a turning axle in a front part of the bracket more proximate to the magazine, a hold-down member mounted on an axle of rotation on the frame on the side opposite the place of fastening the frame to the bracket, a tightening screw located in the central part of the loop. The tightening screw has a link with which the screw abuts against the bottom part of the gas cylinder when the frame is in the closed position, and which, as the screw is screwed into the loop through an opening, urges the gas cylinder till it is pressed to the piercin

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