Abstract: A valve body is provided defining housing a moveable valve spool having a first end and a second end. The valve spool forms a gas balance chamber within the valve body. The valve spool has an end for closing an opening in the valve body. A channel running through the valve spool provides communication with the second end of the valve spool and the gas balance chamber. The second end of the spool valve is adapted to have an effective surface area greater than the effective surface area of the gas balance chamber.

Abstract: A compact paintball marker having an internal paintball holding mechanism, internal compressed gas holding mechanism and distributed striker mechanism. The strike mechanism is divided between two compartments with the striker in a proximal compartment and a biasing mechanism in the distal compartment. The striker is coupled to the biasing mechanism by a striker shaft that may be disposed at least partially external to the housing of the marker.

Abstract: A percussion controlling mechanism of paintball guns includes a percussion member and an air valve separately installed in a gun body. A main air passage is located in front of and separated from the air valve by a spring. Located behind the air valve is a driving chamber having a driving member. An air sub-passage is formed under the air valve chamber for communicating with the main air passage. A driving valve is installed in a grip to correspond to the driving chamber, having an ever-opened buffering hole communicating with a front end of the driving chamber and the air sub-passage, and a driving hole communicating with a rear end of the driving chamber. By means of the air sub-passage to provoke a difference of pressure in the driving chamber, the backlash of percussion can be greatly lowered to boost speed of continuous shooting.

Abstract: A pneumatic container and a paintball gun containing same, and a pneumatic recharging system are provided. The provided pneumatic container is a quick rechargeable air cylinder for serving as an air source for paintball guns, which can be recharged quickly by connecting a larger carbon dioxide (CO2) tank to the pneumatic inlet located on either lateral end of the cylinder or at the bottom end of the cylinder by an adapter with a remote line connector. The provided pneumatic container can also be used as an air expansion chamber when mounted to a paintball gun or marker.

Abstract: A bolt for a pneumatic paintball gun is preferably slidable between an open and a closed position. The bolt preferably provides a firing mechanism for the paintball gun by permitting compressed gas to flow through the bolt to fire the paintball gun when the bolt is closed but preventing the transfer of compressed gas through the bolt when the bolt is open. This can be accomplished, for instance, by arranging a sealing member in communication with a surface of the bolt. A port is also preferably arranged through a lateral sidewall of the bolt at a predetermined location. The bolt preferably slides in relation to the sealing member such that when the bolt is open, the sealing member prevents compressed gas from flowing into the bolt, but when the bolt is closed, compressed gas is permitted to flow into the bolt. The bolt is preferably controlled by using a control valve such as an electronic solenoid valve to operate a pneumatic piston.

Abstract: A continuous firing type trigger structure of a toy gun (air soft gun/BB-gun) includes a valve body disposed behind the output port of a magazine clip in air communication with the gas outlet of a high-pressure gas can, an enclosed socket connected to the rear side of the valve body, a valve tube inserted through the valve body, a spring that pushes the valve tube forwards to keep the air inlet of the valve tube not in communication with the inside space of the valve body, and a piston inserted into the enclosed socket and fixedly connected to a sliding shell on the outside of the toy gun such that the valve tube is moved with the piston forwards (or backwards) to let a high pressure gas be discharged out of the high-pressure gas can into the valve tube to drive an airsoft gun out of the toy gun and to force the piston and the sliding shell backwards after triggering of the trigger of the toy gun, for enabling the piston and the sliding shell to be immediately returned by a return spring for a next firing ope

Abstract: A structure for changing gas cylinder for air guns and paintball guns including a bottle frame having a lateral through hole on a gun handle, a prop screwed at the bottom of the bottle frame for moving the gas cylinder upwardly and downwardly, a valve installed at the top of the bottle frame and connected to a gas supply valve tube, a track disposed along both sides of the handle and latched by an embedded member of a U-shape handle cover. The U-shape handle cover is movable along the track between open and closed positions. The gas cylinder can be unloaded from and loaded into the bottle frame without removing the prop or the U-shape handle cover. The U-shape handle cover can be pushed forward along the track to completely seal the pressurized gas cylinder to form a handle without completely removing the prop or the U-shape handle cover.

Abstract: An improved bolt construction for use in a paintball marker assembly is provided. The improved bolt assembly is generally formed to include a cut-out in the top surface thereof along its leading edge. The cut-out has a size and shape that functions in an manner that prevents the bolt from clipping or otherwise damaging a second incoming paintball projectile as the bolt reciprocates forward to ready a first paintball that is already loaded into the breech in preparation for launch. As the bolt is moved forward to push the first paintball into a position that is ready for launch, the leading edge of the cutout passes beneath the second paintball such that the top surface of the cutout impacts the bottom of the second paintball to push the second paintball upwardly as it advances, thereby clearing it from the breech and preventing the bolt from clipping the second paintball.

Abstract: The present invention contemplates a novel and unique pneumatic paintball marker with a variety of novel features the first being an on/off compressed air control valve at the front of the marker below the barrel adjacent to the inline pressure regulator. Major innovations have been made in reducing the size and weight of the body of the marker along with the construction of the new fuse bolt assembly consisting of just four components and only one moving part. An anti-chop eye electronic system insures the paintballs are in the proper position with the addition of rubber ball detents to hold the paintballs in place so that they will not roll out the barrel prior to firing the marker.

Abstract: An air cylinder mounting structure for air gun is disclosed to include a rack mounted in the grip of an air gun to accommodate a high pressure air cylinder in connection with a bullet supplying and firing system of the air gun, a stop member mounted in the rack at the bottom side, a biasable member mounted inside the rack and supported on the stop member; a hand screw type push member fastened to the biasable member for supporting a high pressure cylinder in the rack in connection with the bullet supplying and firing system of the air gun, an anti-skip disk mounted on the threaded shank of push member, and a spring member mounted on the threaded shank of the hand screw type push member and stopped between the biasable member and the anti-skip disk.

Abstract: A firearms training simulator provides recoil simulating the recoil of a conventional firearm. The valve assembly provides consistent rearward gas pressure for generating recoil. Preferred embodiments of the firearms training simulator may include a means for adjusting the amount of recoil provided. A trigger mechanism permitting semi-automatic operation, or full automatic operation at a user selectable cyclic rate, is provided. The firearms training simulator further provides a laser emitter structured to emit a laser substantially along the same path as a bullet fired from a conventional firearm having the same configuration as the simulator.

Abstract: An improved high-pressure pneumatic apparatus can prevent gas leakage and allows quick assembling and is safe in use. The apparatus can be used with a barrel of an anti-riot or rescue tool gun, such as a catching net gun, a line-throwing gun or a riot gun, for supplying an intensive pressure for shooting in a very short time.

Abstract: A non-lethal projectile launcher (such as a paintball marker) having a clamshell type receiver. One side of the receiver may be split into a front portion and a rear portion that can be independently detached from the other side. This allows the rear portion to be detached to provide access to internal components without requiring removal of the entire side of the receiver.

Abstract: A device to be used to propel a hook, weighted lure or popping cork is disclosed. The device is intended to be used with a conventional fishing rod and reel. The device comprises a storage vessel for compressed air, a valve for releasing the air, and an elongated tube adapted to receive the weighted hook, lure with water or popping cork. In addition, the present invention is particularly adapted to be used with a baited hook, weighted and frozen in a block of ice.

Abstract: A bullet cartridge for toy air gun (air soft gun BB-gun) in which a gasket member is mounted with a metal bush and stopped at an annular stop flange between a front air chamber and a rear air chamber to support a reciprocating motion of a piston rod, and a compression spring is mounted on the piston rod and stopped between the metal bush and a collar of the piston rod to hold the piston rod in the close position where the front stop flange of the piston rod is stopped at the front side of the gasket member to seal the air passage between the CO2 steel cylinder and the jet nozzle through which compressed gas passes to drive a bullet out of the toy air gun.

Abstract: A gun device includes a housing having a gas supplying passage communicating with a gas storage chamber of the housing for coupling to a pressurized gas supplying source, a feed tube for feeding a bullet into the housing. The pressurized gas supplied into the gas storage chamber of the housing may all be used to fire the bullet. In addition, the pressurized gas supplied into a manifold of the housing may be used to move a cylinder and a piston and may also be recycled and used to fire the bullet such that the bullet may be fired or propelled with a greater quantity of the pressurized gas and thus may be fired or propelled for a longer distance, for economizing the pressurized gas.

Abstract: A compact paintball marker having an internal paintball holding mechanism, internal compressed gas holding mechanism and distributed striker mechanism. The strike mechanism is divided between two compartments with the striker in a proximal compartment and a biasing mechanism in the distal compartment. The striker is coupled to the biasing mechanism by a striker shaft that may be disposed at least partially external to the housing of the marker.

Abstract: A gas pressure regulator comprising a housing. The housing includes a regulator cap and a regulator body. The regulator cap and the regulator body engage one another through the use of bayonets on one of the regulator cap or the regulator body and pockets on the other of the cap or body. The regulator housing includes a piston having a piston stem in a piston head. The piston stem has a channel and a seat seal on a removed end thereof, the channel for carrying gas to the piston head. The piston head also engages a piston spring. The regulator housing also includes an adjustable seat for receiving a high pressure compressed gas at one end and providing it to the piston stem at a second end. The adjustable seat is adjustable, such that when it is adjusted away from the piston stem, higher cutoff pressure is required than when it is closer.

Abstract: A positive fit feed adapter for use between a paintball loader and a paintball gun. The feed adapter includes a threaded connector formed on either the paintball gun or the paintball loader. The threaded connector includes a plurality of expansion slots that allow the outer diameter of the connector to expand or compress. The feed adapter further includes a collet having an internally threaded surface that is tapered from a first end to a second end. When the feed tube from the other of the paintball gun and the paintball loader is inserted into the threaded connector, the collet is tightened along the external threads to reduce the diameter of the connector to provide a positive fit between the paintball gun and the paintball loader.

Abstract: The invention is directed toward a device and method for attaching one or more paintball pods the underside of the air canister of a paintball marker. A band of material encircles the canister, either covering the entire bottom and mid-section of the canister as a one-piece jacket or cover, or encircling the canister through a flat harness body with a retaining loop around which double-sided Velcro® cinches the harness body to the canister. The harness can be made of a number of different materials with some combination of non-skid and cushioning characteristics. The device protects the air canister, makes retrieving paintball pods easy and efficient, and presents a much smaller target than do other means of providing replacement paintballs. The invention also allows the player to gain mobility, as he/she does not have to deal with paintball pods flopping around during running, diving, crouching, jumping and crawling activities.

Abstract: A compact paintball marker having an internal paintball holding mechanism, internal compressed gas holding mechanism and distributed striker mechanism. The strike mechanism is divided between two compartments with the striker in a proximal compartment and a biasing mechanism in the distal compartment. The striker is coupled to the biasing mechanism by a striker shaft that may be disposed at least partially external to the housing of the marker.

Abstract: A valve, possibly for use in a paintball marker, has a longer threaded portion that insures a canister that engages the valve must undergo many twists to become unscrewed from the valve. Alternatively, the valve has an elongated threaded portion with gas bleed channels that extend along a substantial portion of the threading. Still alternatively, the valve may use visual markings along the length of the threaded portion to indicate to a user that the canister is being unscrewed.

Abstract: A paintball marker has an inline cylinder that includes a gas governor that reduces gas flow from a compressed gas source to a valve area when the bolt is in a firing position; this increases efficiency in the marker because only the required air is used to fire the paintball. This bolt operates independent of the valve pin, which increases cycle speed and enables the governor to open and close at an optimum time in the firing cycle. Further, when the bolt/piston is recocking, the gap between the valve pin and governor valve pin enables low pressure gas driving the piston to start pressurizing the cylinder and driving the piston rearwards without resistance from the high pressure gas. The marker also allows a user to remove the inline cylinder without the use of tools, and gives the user a convenient carrying handle for holding the paintball marker, which is commonly called a “snatch grip.

Abstract: A gun having a firing mechanism and a barrel. The barrel has a breech end coupled to the firing mechanism, a muzzle end, and a bore having a length which extends longitudinally between said breech and muzzle ends. The length of the bore between the breech and muzzle ends is curved.

Abstract: A shooting structure of a paint bullet gun, which is arranged in a passage of a gun body of the paint bullet gun. The passage communicates with a bullet-dropping port. A handle is arranged on one side of the gun body. A trigger unit is disposed in the handle. The shooting structure includes a tubular member, a gunlock and a controlling member. The tubular member is disposed in the passage near the bullet-dropping port. In the passage, a gas reservoir is defined around the tubular member. The gas reservoir communicates with a gas supply via a pipeline. The gunlock is axially movably accommodated in the tubular member. The gunlock is formed with an axial exhaust duct. The gunlock is formed with a flange, whereby a space is defined between the gunlock and the tubular member. The gas reservoir communicates with the space.

Abstract: A pneumatic paintball marker has, for example, a sleeve that controls the passage of air through the longitudinal barrel or opening within the marker. By sequentially filling separate chambers defined within the opening and the sleeve, the sleeve is able to translate axially through the opening in a sequential manner. When the sleeve is in a forward position, air is caused to be released through the barrel, propelling the paintball. A sear member engages the sleeve and prevents it from inadvertently moving to a forward position. Air filling the chambers returns the sleeve to the loading position.

Abstract: An on-off controller, according to various aspects of the present invention, for controlling a pressurized fluid from a provided bottle, the bottle having a poppet valve biased in a closed position, wherein the pressurized fluid flows from the bottle when the poppet valve is open, the on-off controller includes a body, a seal, a rod, and a position mechanism. The body having a cavity, an inlet, an outlet, and a vent, the inlet and the outlet having continuous fluid communication with the cavity, the vent having sealable fluid communication with the cavity. The seal having a seal bore therethrough, the seal for sealing the vent. The rod having a first bore and a second bore, the first bore in continuous fluid communication with the second bore, the rod positioned in the seal bore.

Abstract: A three-in-one high-pressure gas cylinder magazine. A high-pressure gas cylinder is installed within a holding cavity, and held firmly using a fine tuning knob and securing cover. A spring mount and a securing seat are disposed within a pellet guide cavity defined parallel to the holding cavity. When the pellets are decreasing, the inner securing seat upwardly pushes the pellets within the pellet guide cavity and secures them within a securing ring in a ready state for propelling out a model pistol. When a gastight valve within a cylinder is full of gas, then an inner piston rod is put in a pneumatic state, and the cylinder and a slide cover are simultaneously driven backward as soon as the piston rod is driven by the gas, thereby fixing a hammer in a rear position, thus achieving simplification, automatic operating functionality, and succeeding in simulating a real pistol.

Abstract: A paintball gun triggering mechanism includes a front barrel, a rear barrel, a triggering barrel and a rear guide rod. A front end of the front barrel comprises a front ring formed inwardly and a retreating air inlet is provided behind the front ring. A front end of the rear barrel is fixedly connected to a rear end of the front barrel, and a retreating air outlet, a rear ring and a launching air inlet are provided in sequence behind the connecting portion of the front barrel and the rear barrel. The triggering barrel comprises a center ring formed at a center outer portion thereof and is placed in the front barrel and the rear barrel. The rear guide rod has a piston at a front end thereof to be inserted into the triggering barrel, and has its rear end secured to the rear end of the rear barrel.

Abstract: A magazine assembly presents a pressure cartridge to a compressed gas powered device, such as a gun, wherein the magazine assembly has a cartridge support biased with respect to a magazine to urge the pressure cartridge to a short (or seated) position, wherein an interlock plate is biased to engage the cartridge support. The bias on the interlock plate is overcome during insertion of the magazine assembly into a magazine chamber, at which point the cartridge support moves relative to the magazine in response to a seated length of the pressure cartridge. The bias on the interlock plate then controls the positioning of the interlock plate to engage the cartridge support and retain the pressure cartridge relative to the magazine assembly. A lever connected to the gun then engages the magazine assembly to translate the magazine assembly relative to the gun and pierce the pressure cartridge.

Abstract: An improved compressed gas operated pistol is provided which maximizes use of compressed gas energy by minimizing loss of energy from the chamber into the magazine. An aft end portion of the barrel of the pistol is formed extended as a thin wall portion. When the trigger of the pistol is actuated, this thin wall portion of the barrel is fitted tightly into the chamber, confining the next pellet to be fired within the cylindrical walls of the thin wall portion and the rear surface of the chamber, and sealing off the chamber from the magazine. In this manner, the full impact of the energy provided for firing by the compressed gas cylinder to the chamber is imparted on the pellet.

Abstract: A paintball marker has an inline cylinder that includes a gas governor that reduces gas flow from a compressed gas source to a valve area when the bolt is in a firing position; this increases efficiency in the marker because only the required air is used to fire the paintball. This bolt operates independent of the valve pin, which increases cycle speed and enables the governor to open and close at an optimum time in the firing cycle. Further, when the bolt/piston is recocking, the gap between the valve pin and governor valve pin enables low pressure gas driving the piston to start pressurizing the cylinder and driving the piston rearwards without resistance from the high pressure gas. The marker also allows a user to remove the inline cylinder without the use of tools, and gives the user a convenient carrying handle for holding the paintball marker, which is commonly called a “snatch grip.

Abstract: An on-off controller, according to various aspects of the present invention, for controlling a pressurized fluid from a provided bottle, the bottle having a poppet valve biased in a closed position, wherein the pressurized fluid flows from the bottle when the poppet valve is open, the on-off controller includes a body, a seal, a rod, and a position mechanism. The body having a cavity, an inlet, an outlet, and a vent, the inlet and the outlet having continuous fluid communication with the cavity, the vent having sealable fluid communication with the cavity. The seal having a bore therethrough, the seal for sealing the vent. The a rod having a first end portion, a second end portion, and a middle portion between the first end portion and the second end portion, the middle portion having a groove therein, the rod positioned in the bore.

Abstract: A valve, possibly for use in a paintball marker, has a longer threaded portion that insures a canister that engages the valve must undergo many twists to become unscrewed from the valve. Alternatively, the valve has an elongated threaded portion with gas bleed channels that extend along a substantial portion of the threading. Still alternatively, the valve may use visual markings along the length of the threaded portion to indicate to a user that the canister is being unscrewed.

Abstract: The object of the present invention is to improve shooting precision by causing a bullet to be fired before retreating of the slide commences, which is a problem in related art 3.

Abstract: The present invention describes a cartridge magazine assembly for air guns and paintball guns, and the magazine is designed as an independent device inserted into a breech of a gun to connect a feeder of the gun. The magazine has a vertical feeding chamber at the front of the magazine, and a casing can be added onto the feeding chamber for feeding paintballs or pellets of different sizes, and a feeder spring is installed to pop a feeder bracket to define the feeding device. A bottle frame with through holes is defined at the rear of the magazine, a support is secured into the bottom of the bottle frame by a screw, and the support can be moved up and down manually or by a tool.

Abstract: Methods and apparatus according to various aspects of the present invention comprise an on-off controller configured to control the flow of pressurized pneumatic fluid and to connect directly to a pneumatic device. In one embodiment, the on-off controller comprises a body having an inlet, at least one outlet, a vent, at least one connection bore, an activator positioned in the body, a position mechanism configured to move the activator in the body, a seal configured to sealably contact the activator and seal the vent, wherein the body may connect directly to a paintball marker.

Abstract: An on-off controller, according to various aspects of the present invention, for controlling a flow of fluid from a provided bottle, wherein the bottle has a poppet valve biased in a closed position, wherein fluid flows from the bottle when the poppet valve is open. The on-off controller includes a body, a bore, an activator, and a position mechanism. The body includes an axis and an inlet. The inlet is positioned axially and couples to the bottle. The bore is formed through the body. Each end portion of the bore is open at the exterior of the body and the bore is not parallel to the axis. The activator includes a depressor that opens the poppet valve, a position connector, and at least one pin disposed between the depressor and the position connector. The activator does not obstruct the bore. The position mechanism moves the activator.

Abstract: A gun device includes a housing having a gas supplying passage communicating with a gas storage chamber of the housing for coupling to a pressurized gas supplying source, a feed tube for feeding a bullet into the housing. The pressurized gas supplied into the gas storage chamber of the housing may all be used to fire the bullet. In addition, the pressurized gas supplied into a manifold of the housing may be used to move a cylinder and a piston and may also be recycled and used to fire the bullet such that the bullet may be fired or propelled with a greater quantity of the pressurized gas and thus may be fired or propelled for a longer distance, for economizing the pressurized gas.

Abstract: A gas powered gun has a gun barrel, a cylinder containing a primary piston moveable between a loading position and a firing position, a secondary piston moveable within the primary piston between a loading position in which the leading end of the secondary piston is sufficiently withdrawn in the barrel to permit a projectile to be fed into the barrel through an opening in the side thereof and a firing position in which the secondary piston has moved forwardly to cause the leading end of the secondary piston to engage the projectile and move the projectile forwardly in the barrel. A trigger is operable to cause the primary piston and the secondary piston to move simultaneously from the loading position to the firing position. The cylinder has a chamber through which the primary piston and the secondary piston extend.

Abstract: A paintball gun triggering mechanism includes a front barrel, a rear barrel, a triggering barrel and a rear guide rod. A front end of the front barrel comprises a front ring formed inwardly and a retreating air inlet is provided behind the front ring. A front end of the rear barrel is fixedly connected to a rear end of the front barrel, and a retreating air outlet, a rear ring and a launching air inlet are provided in sequence behind the connecting portion of the front barrel and the rear barrel. The triggering barrel comprises a center ring formed at a center outer portion thereof and is placed in the front barrel and the rear barrel. The rear guide rod has a piston at a front end thereof to be inserted into the triggering barrel, and has its rear end secured to the rear end of the rear barrel.

Abstract: A system for projecting light elements in the air, including: a casing connected to a reservoir containing the light elements and including an opening extending along a determined direction; a slide capable of sliding in the opening along the determined direction; a striker arranged in the opening and fixed with respect to the casing; a spring for sliding the slide in the opening; a shoulder for blocking the slide with respect to the casing in a stop position; a compressed gas cartridge capable of being slid along with the slide and, when the slide is blocked in the stop position, of being projected against the striker to be opened by the striker; and a channel for leading the gases released on opening of the cartridge towards the reservoir.

Abstract: An apparatus for installing a high-pressure gas cartridge of this invention comprises: a high-pressure gas cartridge attachment and detachment apparatus for an air gun comprising: a high-pressure gas cartridge housing provided in a clip of an air gun; a back grip panel for a grip formed as a clamp lever; a lever rotation axis constituting a rotation fulcrum for a back grip panel; and a pressing curved surface capable of pressing a bottom part of the high-pressure gas cartridge, wherein a side grip panel of the grip is provided in an attachable and detachable manner so as to open and close the high-pressure gas cartridge housing, the high-pressure gas cartridge may be attached and detached with the back grip panel of the grip rotated about the lever rotation fulcrum so as to be in an open state, and the back grip panel presses against the bottom of the high-pressure gas cartridge due to rotation centered about the lever rotation axis so as to be closed and so as to push up and install the high-pressure gas car

Abstract: A method of laparoscopic (or robotic) surgery, using a hand-port, comprising providing a trocar port operably disposed within a first abdominal incision opening of a patient, providing a hand-port operably disposed within a second abdominal incision opening, introducing an elongate positioner dimensioned to extend through the trocar, introducing a spatulate element through the hand port and joining the spatulate element to the positioner. The procedure further comprises removing an internal organ or other tissue from the operating area in order to make room and add visibility for the laparoscopic intervention, detaching the spatulate element from the positioner, and withdrawing the positioner through the trocar port and the spatulate through the hand port.

Abstract: A device for firing projectiles comprising a housing having a chamber for retaining projectiles positioned therein and means for expelling the retained projectiles from the housing. An inverted cup is positioned within the chamber and includes an aperture connected to the expelling means. Compressed gas is provided within the chamber by a means for providing compressed gas and a means for activating the providing means is provided as well. Upon activating the activating means compressed gas is provided within the chamber by the providing means causing the projectiles to be caught by the inverted cup and forced through the aperture for expelling therefrom by the expelling means.

Abstract: An actuating mechanism used in an air gun is disclosed to include a hammer, a hook member hooked on the hammer for moving the hammer to the striking position, and a movable block supported on said spring member below a slide of the air gun. The movable block is turned to compress the spring member and to force a first stop edge thereof into engagement with a pivot in the air gun, and the hook member is forced to turn the hammer backwardly downwards to a hammering position when the user moved the slide to the rear side of the air gun. The hammer is disengaged from the hook member to strike the movable block, and the spring member returns the movable block to force a second stop edge of the movable into engagement with the pivot when the user triggered the air gun.

Abstract: A bolt assembly for a paintball gun preferably includes a valve stem having an output port that can supply compressed gas to a compressed gas storage chamber. A bolt is preferably slidably mounted on the valve stem to move between a forward and a rearward position. The bolt can include one or more bolt ports configured to communicate compressed gas from the compressed gas storage chamber to a forward end of the bolt for launching a paintball when the bolt is in the forward position. When the bolt is in a rearward position, the bolt ports preferably communicate compressed gas from the outlet port of the valve stem into the compressed gas storage chamber. A sealing member can be arranged on the valve stem in communication with the bolt to prevent compressed gas in the compressed gas storage chamber from entering a forward bolt chamber when the bolt is in the rearward position and to permit compressed gas to enter the forward bolt chamber through the bolt ports when the bolt is in the forward position.

Abstract: An air gun including a slide, a barrel, a cylinder portion, a hit pin, a hollow valve pin chamber, a valve body, a gas supply port, a valve pin, a pressing section, a bullet feed nozzle link connected to a trigger; and a bullet feed nozzle.

Abstract: Methods and apparatus according to various aspects of the present invention comprise an on-off controller configured to control the flow of pressurized pneumatic fluid. In one embodiment, the on-off controller comprises a body having an inlet, at least one outlet, a vent, a vent passage, a rod positioned axially in the body, a position mechanism configured to move the rod axially in the body, a seal configured to sealably contact the rod and seal the vent passage, wherein the position of the rod may define operating states comprising: an on-state, an off-state, and a vent-state.

Abstract: This invention can make a valve compact in function and improve using efficiency of a compressed gas and make an air gun compact. To achieve this object, an air gun is constructed by a hit pin arranged in a cylinder portion, a valve body arranged within a hollow portion of the cylinder portion and having a bullet supplying nozzle chamber and a valve pin chamber, a gas inlet port opened to a sleeve-shaped circumferential face of the valve pin chamber, a bullet supplying nozzle arranged within the bullet supplying nozzle chamber, and a valve pin arranged within the valve pin chamber. The hit pin is pressed on a muzzle side and the valve pin is slid to the muzzle side so that an airtight state between a valve pin flange portion and a side face of the valve pin chamber on its gun rear end side is released. A compressed gas is supplied to a nozzle chamber side opening and a valve pin chamber side opening from a clearance between the valve pin flange portion and the gun rear end side face of the valve pin chamber.