Abstract: An arrow gun is provided having a controllable retention force on the arrow. By setting the retention force on the arrow, increased energy from motive compressed gas can be imparted to the arrow. The arrow gun also includes a damping coupling for reducing vibration of an unsupported length of the barrel.

Abstract: An arrow gun is provided having a controllable retention force on the arrow. By setting the retention force on the arrow, increased energy from motive compressed gas can be imparted to the arrow. The arrow gun also includes a damping coupling for reducing vibration of an unsupported length of the barrel.

Abstract: An air-soft gun includes a grip; a high-pressure air canister disposed in the grip; and a remaining compressed air release device including a channel member threadedly secured to an end of the air canister and including an axial channel and a sealing ring; a rotatable cap releasably secured to the channel member; a biasing member fastened between the cap and the channel member; a striker including a needle on a first end, an internal passageway, an inlet proximate the needle and communicating with the passageway, an outlet proximate a second end and communicating with the passageway, internal threads on the passageway proximate the second end, and a threaded fastener driven through the cap into the internal threads to secure the cap to the striker. The inlet is blocked by the sealing ring in an inoperative position.

Abstract: A pneumatic gun designed to provide uniform, constant acceleration to a projectile which includes a gas storage tank designed to store a blend of gases under pressure. The pneumatic gun also includes a buttstock that includes a pre-chamber storage vessel in fluid communication with the storage tank. The pneumatic gun further includes a sleeve valve in fluid communication with the pre-chamber storage vessel and designed to control flow of the blend of gases from the pre-chamber storage vessel into a nozzle located adjacent the sleeve valve. The nozzle is shaped to accelerate a velocity of the blend of gases across an axial length of the nozzle. The pneumatic gun also includes a trigger that is designed to open the sleeve valve when the trigger is actuated such that the sleeve valve remains open until a projectile exits a barrel of the pneumatic gun.

Abstract: A structure includes a bolt body combined in a toy gun, a bullet feeding element, a high pressure air opening, an air outlet opening, an air valve assembly, a piston element, a recoil bar at one side of the bolt body, a first elastic element fit over the recoil bar, a bolt sleeve defined at one side of the bolt body and movably fit over the recoil bar, and an abutting section. When the high pressure air is input through the high pressure air opening, the air valve assembly may change a flowing direction thereof and drive the abutting section to move so as to control rearward movement of the piston element, the bolt body, and the bullet feeding element. A first elastic element that is operable to move the bolt body forward is disposed on the recoil bar outside the bolt body.

Abstract: An air flow adjusting device of air gun includes an adjusting assembly having an adjusting knob and a locking seat; a piston sleeve provided with a rod body inserted into the locking seat and threaded with the adjusting knob; a spring arranged between the locking seat and a base of the rod body. One end of the adjusting knob is locked to the locking seat. By rotating the adjusting knob, the relative locking position of the adjusting knob and the locking seat can be changed, and the total length of the piston sleeve and the adjusting assembly can be adjusted; thereby, the adjusting knob can be rotated by to defining a slot in the piston seat, and the function of adjusting the air flow rate can be achieved without using any tool, so that the operation of adjusting the air flow can be simplified, which improves the operational convenience of the device.

Abstract: A toy gun capable of quickly piercing an air bottle. The toy gun includes a gun body, a piercing seat, a screw base, and a moveable rod assembly. The gun body has an air cylinder receiving the air bottle. A connecting tube and a screwed tube are disposed at both ends of the air cylinder. The piercing seat is in the connecting tube. The screw base has an end screwed to the screwed tube and the other end with a bottom end. The screw base has a throughhole penetrating through the bottom end and communicating with the air cylinder. The movable rod assembly has a push rod moveable to penetrate through the throughhole and to protrude from the bottom end and a return spring flexibly held between the screw base and the push rod.

Abstract: This invention relates to a semi-automatic air rifle and air pistol with pneumatic system (PCP) operating in such a way that the air, which carries the ammunition in the pneumatic air rifles and air pistols, hits, without changing its direction, the piston at the instant it leaves the barrel to set said piston in motion towards the muzzle, and at the same time, the other members of the system that we have developed also start to move, thereby enabling, after each shot, the rifle and the pistol to become automatically prepared for the next shot.

Abstract: The present invention provides an apparatus comprising a feed arranged below the middle of the apparatus, a quenching agent inlet arranged above the feed, an outlet arranged below the feed and a draw arranged above the quenching agent inlet, the apparatus having a region provided with one or more packing elements, wherein at least one means which ensures the formation of a liquid layer having a height of at least 1 cm is present between the quenching agent inlet and a packing element present between the quenching agent inlet and feed. The present invention also provides a process for preparing acrylic acid, which includes a step of oxidizing acrolein, wherein the reaction mixture obtained in this oxidation is contacted with water as quenching agent in an inventive apparatus, and a composition obtainable as bottom product in the process according to the invention, comprising acrylic acid and water.

Abstract: A shooting device (1) of a toy gun is provided. The gun body (10) has an air cylinder (11), a chamber base (12), a barrel (13), and a magazine (14). The chamber base (12) has an air chamber (120). The barrel (13) has a bullet passage (130). The magazine (14) is disposed at a side of the barrel (13). The triggering structure (20) has a slide assembly (21), a latch (22), and a trigger linkage (23). The slide assembly (21) pushes the bullets (2); the trigger (30) pushes against the trigger linkage (23) by an external force to move the next bullet back to the magazine (14) and seal the magazine (14). Therefore, the shooting device satisfying the users' requirements is provided.

Abstract: A lower receiver has a trigger assembly. An upper receiver is coupled to the lower receiver. The lower receiver has a bolt assembly and an L-shaped slot. The L-shaped slot has a long leg, a junction, and a short leg. The bolt assembly interacts with the L-shaped slot. The upper receiver has a rear end to which a compressed gas power source can be coupled. The upper receiver has a gas path from the compressed gas power source for firing a projectile through a barrel and for cocking the bolt assembly. The gas path is entirely contained by the upper receiver.

Abstract: A projectile launcher containing a top mounted striker launching mechanism capable of propelling a projectile or object is disclosed. In one aspect, the projectile launcher includes a bolt, a valve, and a striker. The bolt containing an air channel and a bolt carrier is situated inside a receiver of the projectile launcher. The bolt is used to facilitate launch of a projectile. The valve, which is situated inside the receiver above a firing chamber away from ground, is operable to control the release of pressurized gas for propelling the projectile. The striker, which is coupled to the bolt via the bolt carrier and is physically situated above the bolt away from the ground, is able to strike a valve pin of the valve to release a predefined amount of pressurized gas for propelling the projectile from the firing chamber to a target.

Abstract: A toy gun includes a toy gun body and a toy gun gas cartridge loading device to be attached to the toy gun body. The toy gun body has a loading device housing located around a gun body coupling valve. When attaching the toy gun gas cartridge loading device to the toy gun body with an end portion of the device inserted in the loading device housing of the toy gun body, a lock of the loading device is locked with a first lock of the gun body, and when detaching it from the toy gun body, the lock of the loading device is locked with a gun body second lock.

Abstract: A toy gun includes a toy gun body and a toy gun gas cartridge loading device. The toy gun body includes a housing, a gun body first lock and a gun body second lock. The gas cartridge loading device is detachably housed in the housing and is locked with the gun body first lock. The gas cartridge loading device includes a loading device second lock which is housed in the loading device housing when an end of the gas cartridge loading device is housed in the housing. The loading device second lock is located on a lateral side of the gas cartridge loading device. When the gun body first lock is disengaged, the loading device second lock engages with a gun body second lock.

Abstract: A compressed gas cartridge is provided that includes a hollow cartridge front section having a male high-pressure gas quick-connect fitting, a forward piston-receiving channel, and a projectile receptacle; a hollow cartridge rear section having a rear piston-receiving channel and a forward valve seat; a center cylinder connected between the cartridge front and rear sections and including an interior gas storage space; and a piston that sealably fits within the front and rear piston-receiving channels. The piston has a solid rearward portion configured with a striking surface and a hollow forward portion. The hollow forward portion has an exterior cylindrical, concentric seal with a rearward edge configured to sealably engage the valve seat. Piston exhaust/fill holes just rearward of the concentric seal allow compressed gas to move between the gas storage space and the hollow interior of the piston forward portion during both discharge and filling.

Abstract: An air gun with a quick-release pneumatically operated gas valve that includes a piston positioned in a cylinder with one closed end so that the piston may seat against a gas outlet to close the gas valve. A control reservoir filled with gas to a control pressure is formed in the cylinder between the piston and the closed end of the cylinder so that the control pressure acts against the piston to close the gas valve. Opening a trigger valve allows the gas in the control reservoir to escape through an exhaust port, resulting in the gas valve being rapidly opened.

Abstract: An improved safety valve for a toy air gun apparatus in which the toy air gun includes a piston and a drive spring mounted in a grip portion of the air gun. A handle extends from the bottom of the grip portion and is manipulated by the user to cock the air gun by compressing the drive spring. When the user pull a trigger the piston is released and surges upward because of the expanding drive spring. A valve element located to the rear of a barrel section of the air gun receives a blast of compressed air in a direction lateral to the longitudinal axis of the valve element and lateral to valve element movement between an open, rearward position and a closed, forward position.

Abstract: A mechanism for an open bolt type air gun includes a trigger that is pulled with a bolt in its retracted position. The mechanism includes a sear or an inner safety and a trigger bar. The sear is located behind and below the bolt and has a projection to come into contact with a locking projection of the bolt. The inner safety is located below the bolt and has a projection to come into contact with the locking projection of the bolt. A first trigger bar is located below the sear and has a bolt contact part which extends upward at its front end and comes into contact with a cam part of the bolt and a locking projection to lock the sear. A second trigger bar is located below the inner safety and forward of the first trigger bar and has a locking projection to lock the inner safety.

Abstract: A projectile launcher capable of optionally repositioning the bolt to a predefined position using a bolt carrier is disclosed. The launcher, in one aspect, includes a bolt, a striker, a bolt carrier, and a ramp. The bolt, in one example, is configured to be able to move within a bolt chamber. The striker having a striker reset hook is able to move in a direction parallel to a moving direction of the bolt. The bolt carrier, having a fastener, a flexible latch, and a bolt repositioning latch, is attached to the bolt via the fastener. The flexible latch is able to latch to the striker reset hook for resetting the striker during a process of launching a projectile. The ramp facilitates disconnecting the flexible latch from the striker reset hook when the flexible latch moves over the ramp.

Abstract: A mechanism for an open bolt type air gun includes a trigger that is pulled with a bolt in its retracted position. The mechanism includes a sear or an inner safety and a trigger bar. The sear is located behind and below the bolt and has a projection to come into contact with a locking projection of the bolt. The inner safety is located below the bolt and has a projection to come into contact with the locking projection of the bolt. A first trigger bar is located below the sear and has a bolt contact part which extends upward at its front end and comes into contact with a cam part of the bolt and a locking projection to lock the sear. A second trigger bar is located below the inner safety and forward of the first trigger bar and has a locking projection to lock the inner safety.

Abstract: An airsoft gun structure redesigns the conventional high-pressure toy gun to shunt high-pressure air flow during shooting. Therefore, the shunted high-pressure air flow simulates recoils as real bolt-action, single-shot rifles. Also, the ammunition supply includes different cartridges to select one of the supply-type by the users and whether shell case ejection or not. When operates the airsoft gun, the realistic action is achieved to enhance the fun of shooting. Furthermore, the dual hop up system makes the flight path of bullets more stable without shift. Moreover, the safety gasification system could make the supplied amount of the output compressed high pressure air be almost constant to enhance security during operation.

Abstract: A reduced breakaway-friction flow control and valving device for a compressed gas-powered projectile accelerator is disclosed having an improved means of reducing break-away friction, an improved sealing arrangement, and self-contained modular components to improve efficiency, manufacturability, and reduce size and weight.

Abstract: A compact paintball marker having a valve with a blow back hole and reservoir. The blow back hole and reservoir increase the percentage of the compressed gas that is released in response to a trigger pull that is utilized to push the striker back to a cocked position. This improves the reliability of the automatic re-cocking of the marker even when there is low pressure from the compressed gas source.

Abstract: A pneumatic assembly for a paintball gun is provided. The pneumatic assembly includes a valve stem, and a bolt slidably mounted on the valve stem. The bolt includes at least one bolt port arranged through a sidewall of the bolt. A sealing member is provided on the valve stem in communication with an inner surface of the bolt. The bolt slides from a rearward position to a forward position along the valve stem. Compressed gas flows through the bolt port and through the bolt aperture to fire a projectile when the bolt is in the forward position. A paintball gun incorporating the pneumatic assembly is also provided.

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 tools, and provides a convenient carrying handle for holding the paintball marker, which is commonly called a “snatch grip.

Abstract: A bug killing gun includes a compressed gas source fluidly connected to a chamber connected to a barrel. A compressed gas release mechanism is connected to the compressed gas source. A projectile storage magazine stores particulate projectiles and is located adjacent the chamber. A projectile loading mechanism moves the projectiles into the chamber from the magazine. A cocking mechanism is mechanically connected to the compressed gas source, the compressed gas release mechanism, and the projectile loading mechanism. A stock houses and supports the compressed gas source, the compressed gas release mechanism, the barrel, the chamber, the projectile storage magazine, the cocking mechanism and the projectile loading mechanism. When the gun is cocked, the projectile loading mechanism loads a predetermined quantity of the particulate projectiles into the chamber. When the compressed gas release mechanism is activated the projectiles are ejected from the chamber into the barrel and expelled from the gun.

Abstract: A pneumatic assembly for a paintball gun is provided. The pneumatic assembly includes a valve stem, and a bolt slidably mounted on the valve stem. The bolt includes at least one bolt port arranged through a sidewall of the bolt. A sealing member is provided on the valve stem in communication with an inner surface of the bolt. The bolt slides from a rearward position to a forward position along the valve stem. Compressed gas flows through the bolt port and through the bolt aperture to fire a projectile when the bolt is in the forward position. A paintball gun incorporating the pneumatic assembly is also provided.

Abstract: A paint ball gun includes a body, a valve unit and a striking unit. The valve unit is disposed in the body. The striking unit is disposed in the body, and includes a striker and a collar. The striker is made of metal and formed with a striking tip at an end for hitting the valve unit. The collar is made of plastics and provided on the striking tip.

Abstract: A bug killing gun includes a compressed gas source fluidly connected to a chamber connected to a barrel. A compressed gas release mechanism is connected to the compressed gas source. A projectile storage magazine stores particulate projectiles and is located adjacent the chamber. A projectile loading mechanism moves the projectiles into the chamber from the magazine. A cocking mechanism is mechanically connected to the compressed gas source, the compressed gas release mechanism, and the projectile loading mechanism. A stock houses and supports the compressed gas source, the compressed gas release mechanism, the barrel, the chamber, the projectile storage magazine, the cocking mechanism and the projectile loading mechanism. When the gun is cocked, the projectile loading mechanism loads a predetermined quantity of the particulate projectiles into the chamber. When the compressed gas release mechanism is activated the projectiles are ejected from the chamber into the barrel and expelled from the gun.

Abstract: A toy gun gas intake control mechanism includes a holder frame, an impact member having an elongated pivoted with its bottom end to the holder frame, a striking block, a pivot axle that pivotally connects the striking block to the top end of the elongated base and a spring member for revering the striking block, a retaining block supported on a spring member in the holder frame and having a retaining notch for retaining the outer end of the pivot axle. When firing a bullet, the bolt body of the toy gun moves forwards, the striking block strikes a seal member to open a gas inlet, and the pivot axle is moved out of the retaining notch of the retaining block for allowing upward displacement of the retaining block. When the bolt body moves backward after firing, the retaining block is forced downwards to the inside or the holder frame by the bolt body, the outer end of the pivot axle is engaged into the retaining notch, and the striking block is returned, causing the seal member to close the gas inlet again.

Abstract: An air gun includes a retainer pivotably connected inside the air gun and having a bullet abutment part that pivots into and out of a bullet-receiving chamber. The retainer is resiliently biased to pivot in a forward direction so that the bullet abutment part is urged into the bullet-receiving chamber. In a trigger rest position, a hollow inner barrel prevents a bullet and the bullet abutment part from entering into the bullet-receiving chamber. Upon pulling the trigger, the inner barrel moves in a forward direction to permit the bullet and the bullet abutment part to enter the bullet-receiving chamber where the bullet abutment part contacts and retains the bullet therein. Upon pulling the trigger further, the inner barrel moves in a rearward direction to capture the bullet therein while causing the retainer to pivot in the rearward direction to thereby move the bullet abutment part out of the bullet-receiving chamber.

Abstract: Since a conventional self-loading bolt assembly for airguns is complicated in construction, the cost of its production comes expensive. A simple piston-cylinder mechanism was found to decrease a component count of the self-loading bolt assembly. Since the present invention remarkably decreases the component count, the cost of the production of the assembly is drastically decreased with striking success.

Abstract: This specification discloses a structure of the paintball gun. It comprises a body, a pressuring set, and a triggering set. The body has an axial passage whose front end forms a paintball outlet. The triggering set and the pressuring set are disposed in sequence inside the passage. The triggering set has a bushing, a guide pillar, and a bolt. The bushing is fixed inside the passage. The bolt is mounted on the guide pillar and disposed together inside the bushing. Air after being pressurized by the pressing set enters the triggering set. A control valve controls the flow path of the air in the triggering set in order to push the guide pillar backward. The air thus pushes the bolt toward the paintball outlet of the passage for triggering.

Abstract: A bolt has a cylindrical fit receiving portion. When the bolt slides forward, the rear part of a valve body enters the fit receiving portion. At a closed end opposed to its opening behind the fit receiving portion, a cylindrical body is provided. The cylindrical body lets the interior of the bolt and the exterior of the bolt communicate with each other. The shank of an opening/closing body is slidably placed in the cylindrical body. This opening/closing body has an lid portion at the end of the shank on the fit receiving portion side and a coming-off preventing portion at the outside end of the shank. An opening/closing body spring is placed between the closed end of the bolt and the lid portion and pushes the lid portion toward the fit receiving portion.

Abstract: A pneumatic gun with easily removable bolt. A bolt is coupled to a bolt pin to be introduced into the rear of a receiver of the pneumatic gun. The striker defines a notch to receive the bolt pin the notch is open ended towards the rear of the gun. A cap is coupled to the striker so that it can rotate between an open orientation and a closed orientation. In the open orientation, the cap defines a slot that aligns with the notch of the striker to permit the bolt pin to enter the notch and the closed orientation of the cap captures the striker within the notch so that the striker and bolt move as a unit.

Abstract: A firing assembly of a paintball gun includes a piston, a spring, and a valve installed in a chamber in a frame of the paintball gun. The piston is a bar-like member having front member, a connection member, and a rear member. The connection member is smaller than the front member and the rear member to form a space thereunder. The valve is in the space to divide the space into a front room and a rear room. The spring urges the piston forward to have the rear member pressing an actuator of the valve that a high pressure gas will escape out of the valve to spurt out of the apertures via the rear room, the channels, and the front room. The high pressure also pressurizes the rear member to move the piston backward and compress the spring.

Abstract: The present utility model relates to a gas air operated with draw back boring toy long-barrelled gun. Its firing module, ammunition box module and trigger module are installed in the main body of the gun, wherein a rifle bolt main body is provided inside the firing module, and there is a connecting rod, a piston module and a rifle bolt gearing component provided inside the rifle bolt main body. Through the trigger module, and the connecting rod, the piston module and the rifle bolt gearing component provided inside the rifle bolt main body, its trigger module produces gas air fire, and makes the firing module produces gas air draw back and automatic loading. It enables the firing module to draw back and loading automatically, and allows the gun to fire continuously.

Abstract: In an air gun of the related art, even if it is attempted to independent and separately adjust a firing operation and a blowback operation, this type of independent adjustment is difficult. This problem is solved by an air gun for firing a bullet using compressed gas, and having a mechanism for performing blowback, wherein the blowback mechanism is provided with a firing air chamber 25a and a blowback air chamber 25b, being two cavities capable of being supplied with compressed gas from a compressed gas source A and being sealed to contain the compressed gas, inside a valve body 24, a firing valve 27 inside the firing air chamber 25a, a blowback valve 29 inside the blowback air chamber 25b, and two valves 27, 29 that are capable of actuation independent of each other by operation of a trigger.

Abstract: A pre-charged pneumatic airgun includes a reservoir, a stopper, a barrel and a manually actuated degassing tool. The reservoir contains a volume of compressed fluid and includes a discharge port disposed therein through which the compressed fluid is selectively discharged from the reservoir. The stopper is disposed in the discharge port and is moveable between a normal position sealing the discharge port in an actuated position allowing passage of the compressed air through the discharge port. The stopper is biased to the normal position by a biasing force. The barrel is in fluid communication with the discharge port. When the stopper is disposed in the discharged position, the compressed fluid discharged through the discharge port is further exhausted through the barrel.

Abstract: An air-compressed bullet gun assembly with a length-reduced gun barrel is provided, including a barrel body, a bullet-firing device, a blocking element and a rear cover. The barrel body includes a hollow tube which further includes a 1st blocking flange and a 2nd blocking flange; the 2nd blocking flange divides the hollow tube into two connected parts: the 1st air chamber and the 2nd air chamber; the 1st air chamber includes a screw hole. The bullet firing device includes a 1st protruding flange, a 1st air-tight loop, a 2nd air-tight loop, a plurality of ventilators, and a guiding pole. The blocking element includes a locking hole, a 2nd protruding flange, and a 3rd air-tight loop. The rear cover includes a 5th air-tight loop.

Abstract: A firing assembly of a paintball gun includes a piston, a spring, and a valve installed in a chamber in a frame of the paintball gun. The piston is a bar-like member having front member, a connection member, and a rear member. The connection member is smaller than the front member and the rear member to form a space thereunder. The valve is in the space to divide the space into a front room and a rear room. The spring urges the piston forward to have the rear member pressing an actuator of the valve that a high pressure gas will escape out of the valve to spurt out of the apertures via the rear room, the channels, and the front room. The high pressure also pressurizes the rear member to move the piston backward and compress the spring.

Abstract: An anti-jam firing mechanism comprises a front bolt movable between a first position and a second position, in which a crossover point is positioned between the first position and the second position. The front bolt is operative to engage a frangible projectile, such as a paintball, as the front bolt moves from the first position to the second position. A drive mechanism drives the front bolt with either a first force or a second force. The drive mechanism drives the front bolt with the first force when the front bolt travels between the first position and the crossover point. When the front bolt travels between the crossover point and the second position, the drive mechanism drives the front bolt with the second force. Typically, the first force is less than a projectile rupturing force.

Abstract: A paintball marker for launching a paintball using a bolt with an internal impact ring for contacting a power tube sized to fit within the bolt. The power tube has an internal gas passage for supplying launching gas to the paintball and an external striking surface that is contacted by the bolt's impact ring. A main seal is positioned selectively seal the internal passage of the power tube from a gas supply. Movement of the bolt causes the impact ring to contact the striking surface to unseat the power tube from the main seal to release gas from the main gas chamber through the internal passage into the breach to launch the paintball.

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 valve for paint ball guns includes a case for receiving a first piston rod therein in which a first end of a second piston rod is movably received. The case includes several chambers defined therein so as to introduce pressurized air into the barrel of the paint ball gun. The first piston rod includes two piston rings and one of which is larger than the other. The first piston rod is biased by a first spring. The first end of the second piston rod in the first piston rod is biased by a second spring which is easily overcome by pushing the second piston rod by a driving member. The movement of the second piston rod introduces pressurized air to apply to the piston ring of larger area to generate a force to overcome the force from the first spring and the piston ring of the smaller area.

Abstract: A self-regulating valve assembly for a compressed gas gun includes a valve housing and a valve body disposed within the valve housing. The rearward end of the valve body defined an outlet port. The forward end of the valve body defines a gas balance reservoir open to and in communication with the breech of the gun. A valve gas passage is provided between the valve body and the valve housing, the valve gas passage providing communication between the outlet port of the valve body and the gas balance reservoir of the valve body. A slidable valve poppet is disposed within the valve body and includes a sensing end adjacent to and at least partially within the gas balance reservoir, the sensing end having a sensing face adapted to react to gas pressure within the gas balance reservoir. The valve poppet is slidable between a closed position and an open position. A valve spring within the valve body biases the valve poppet toward the closed position.

Abstract: In a paintball gun 10 the valve member 17 which controls communication between the gas canister 13 and the barrel 11 of the gun is balanced by a piston 23. When the chamber 21 is pressurized the piston 23 helps to unseat the valve member 17 when the latter is struck by a hammer 15, thus reducing recoil and permitting use of lighter, less robust materials.

Abstract: In a paintball gun mechanism compressed air is admitted through passages (16) to the interior of the barrel (10) where it will move forward a hollow bolt (11) until it can escape through the bolt (11) to fire a paintball. The bolt (11) is then moved backward by compressed air in a chamber (15) until a central formation (12) of the bolt (11) enters a guide (13) to close a firing chamber (14) behind the bolt (11). The invention provides a valve member (17) independent of the bolt (11) which is biased by a spring (18) to close off the firing chamber (14) from the passages (16) except when displaced by the formation (12) of the bolt (11) during a final part of the rearward movement of the bolt (11).

Abstract: A multi-purposes mechanism for shooting apparatus includes a gun body, a barrel, a shooting member, and a rear cap. The gun body comprises a hollow tube perpendicularly interconnecting with a first loading hole at a center portion of the hollow tube. A first stage is formed on an inner wall of the tube in front of the first loading hole. A second stage is formed on the inner wall of the tube in back of the first loading hole. The barrel is disposed in the tube before the first loading hole, and has a first engaging ring corresponding to the first stage of the tube. The shooting member is disposed in the tube after the first loading hole, and has a second engaging ring on an outer wall thereof corresponding to the second stage of the tube. The rear cap is connected to a rear end of the tube.

Abstract: A retractable spring loaded pop-up shield for a water gun. The shield can assume one of two positions of either a folded, reclined position or of an unfolded, upright standing position.