초록 ▼

A gas-powered pistol has a frame with a forwardly opening barrel passage that extends through much of the length of a barrel portion of the frame wherein a reciprocally movable barrel is housed. Side-by-side magazine and gas supply passages extend from the barrel passage through a grip portion of th

A gas-powered pistol has a frame with a forwardly opening barrel passage that extends through much of the length of a barrel portion of the frame wherein a reciprocally movable barrel is housed. Side-by-side magazine and gas supply passages extend from the barrel passage through a grip portion of the frame for receiving therein a reloadable magazine and a replaceable pressurized gas cylinder. The frame is formed from metal that is die-cast about a pre-machined metal insert located at the juncture of the barrel and gas supply passages. The insert provides an inlet into which a seal piercing assembly is threaded for receiving pressurized gas from the gas cylinder, and an outlet into which a valve assembly is threaded that slidably supports the breech end of the barrel. The barrel carries a hammer mass that is engaged by a trigger-mounted sear for moving the barrel forwardly in opposition to the action of a firing spring when the trigger is pulled. The hammer mass carries a depending projection that cooperates with a transversely slidable safety to selectively block movement of the barrel by the trigger. When the sear disengages the hammer mass of the forwardly-moved barrel, the trigger and sear are returned to their normal positions by a return spring, and the barrel is moved rapidly rearwardly by the firing spring to operate the valve assembly to duct a burst of pressurized gas into the barrel to fire a BB pellet.

대표청구항 ▼

[ What is claimed is:] [1.] A gas-powered gun, comprising:a) frame means for defining 1) an elongate barrel passage having a rear end region and having a front end region that defines a front opening, 2) an elongate gas supply passage having one end that communicates with the rear end region of the

[ What is claimed is:] [1.] A gas-powered gun, comprising:a) frame means for defining 1) an elongate barrel passage having a rear end region and having a front end region that defines a front opening, 2) an elongate gas supply passage having one end that communicates with the rear end region of the barrel passage, having an opposite end that is configured to receive a removable gas passage cover, and having a central portion that is configured to receive a cylinder of compressed gas that can be inserted therein when the cover is removed, and 3) an elongate magazine passage that extends side-by-side with the gas supply passage and intersects with the barrel passage at a loading station that is spaced forwardly along the barrel passage from the rear end region of the barrel passage;b) valve means disposed in the rear end region of the barrel passage for receiving pressurized gas from the cylinder of compressed gas carried in the central portion of the gas supply passage and for dispensing a burst of compressed gas when a forwardly-biased movable valve member of the valve means is briefly moved rearwardly a short distance;c) barrel means including an elongate barrel extending through the barrel passage and being reciprocally movable therein for defining a projectile passage that extends from a muzzle end region of the barrel through a central region of the barrel to a breech end region of the barrel, with the muzzle end region being slidingly connected to the frame near the front opening of the barrel passage, with the breech end region being slidingly connected to the valve means and being configured to receive within a breech end region of the projectile passage gas that is dispensed in a burst by the valve means, with the central region defining a hammer mass that extends circumferentially about the projectile passage, with a loading port that communicates with the projectile passage and that faces toward the magazine passage being defined through a thin bottom wall portion of the breech end region of the barrel, with the barrel being reciprocally movable relative to the frame means to permit the loading port to move in forward and rearward directions through the loading station, and with the barrel being biased rearwardly into engagement with the movable valve member toward a position wherein the loading port is located rearwardly with respect to the loading station;d) trigger means carried by the frame means and being engageable with the barrel means for being operated to move the rearwardly-biased barrel forwardly a sufficient distance to move the loading port through the loading station, and for thereafter releasing the rearwardly-biased barrel to travel rearwardly to impact the forwardly-biased movable valve member to move the movable valve member briefly rearwardly to cause a burst of pressurized gas to be dispensed into the breech end region of the projectile passage; and,e) an elongate magazine having a foot end and a dispensing end, and being configured 1) to define an interior magazine chamber capable of receiving therein a plurality of BB pellets, with the magazine chamber having a dispensing passage located near the dispensing end of the magazine, 2) to be insertable dispensing-end-first into the magazine passage to a fully inserted position wherein the dispensing end of the magazine is positioned near to but spaced from the thin bottom wall portion of the breech end region of the barrel, 3) to define exit door means for normally closing the dispensing passage to retain BB pellets within the magazine chamber, and for moving to an open position when the magazine is moved into the fully inserted position, and 4) to define follower means within the magazine chamber a) for biasing BB pellets in the magazine chamber along the dispensing passage toward the door, and b) for biasing a BB pellet that passes at least partially out of the dispensing passage when the door is opened into engagement with the thin bottom wall portion of the breech end region of the projectile passage at the loading station so that, when the loading port of the projectile moves through the loading station in response to forward movement of the barrel due to operation of the trigger means, the BB pellet that has been biased into engagement with the thin bottom wall portion of the breech end region of the barrel will be caused to move through the loading port into the projectile passage for being contained therein briefly until being fired through the projectile passage for discharge from the muzzle end region of the barrel in response to said burst of pressurized gas being dispensed into the breech end region of the projectile passage when the rearwardly-biased barrel is released by the trigger means and moves rearwardly to impact and move the movable valve member a short distance rearwardly.