Abstract: A paintball gun comprised of a simplified firing system that eliminates many of the seals and complexity of a typical gun that uses the bolt as a spool type valve. The gun contains a bolt with a gas chamber around it, one seal inside of it, and one seal on its outside. A cylinder rod inside the bolt pushes the bolt forward against a spring using pressurized gas routed via a pilot valve, moving the bolt into the fire position. In the fire position the rear of the bolt moves off the inner seal, allowing compressed gas stored around the bolt to move into and thru the bolt, firing the paintball. Releasing pressure from behind the cylinder rod allows the spring to push the bolt rearward and seal the gas chamber. The simplified mechanism should be more consistent, allow more shots per tank and require less maintenance than other guns.

Abstract: A toy gun comprising a bullet chamber, a gas bottle container, a regulation valve, a regulation chamber and a control valve in a magazine shell, at least one partitioner is installed inside the regulation chamber, the partitioner subdivides the regulation chamber into several small chambers in series, several small holes are on the partitioner to interlink these small chambers, the small holes are made in conical shape with smaller diameter toward first chamber side. In real application, the gas flows from the gas bottle to the first chamber then to next chambers through those small holes, the gas entering the first chamber cannot flow into the next chamber completely as the gas flow reservation and buffering effect, the gas pressure variation is minimized at the regulation valve close moment and offer a stable, safe shooting power source.

Abstract: A mechanical, pneumatic, magnetic and/or electronic method for assisting the user operation of a trigger and/or actively and rapidly returning the trigger mechanism to its firing position at the completion of a firing sequence in a paintball gun. The trigger assistance mechanism reduces the amount of force required by the user to move the trigger to begin the firing sequence. After the firing sequence has been completed, the trigger assistance mechanism provides assistance to the trigger to move it to its pre-firing resting position. Alternatively, the trigger assistance mechanism replaces the mechanical linkage between the trigger and the cocking/firing mechanism of the paintball gun such that a pneumatic actuating ram is used to initiate the cocking/firing sequence.

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: An improved feed port for a pneumatic projectile device comprising a moveable feed port aperture attached to a pneumatic device through which projectiles can be introduced to the breech of the pneumatic device, the feed port having an aperture permitting the free flow of projectiles from an external source.

Abstract: A compressed gas injection device includes a projectile course for receiving and accelerating projectile bodies, a compressed gas housing which is connected to the projectile course and which is divided up into a compressed gas chamber and a working chamber by a partition. A working piston is arranged in the compressed gas housing and is provided with a valve plate which is arranged on the front end of the piston rod thereof for moveable rear closure of the projectile course, wherein the working piston is a movable backward closure element for the working chamber and the piston rod is guided through the partition.

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: In a compressed air gun for use by police and firefighting forces for breaking open doors, including a compressed air cannon with an ammunition ball, wherein the compressed air cannon has a compressed air chamber, a barrel extending from the compressed air chamber and a discharge valve for releasing the pressurized air from the compressed air chamber into the barrel the ammunition ball consists of a hollow plastic ball which is filled with a heavy material providing, upon being shot out of the barrel by the compressed air, an impact force sufficient to break down a door to be opened without rebounding or generating shrapnel that could endanger a person using the gun.

Abstract: A pneumatic assembly for a paintball gun preferably includes a bolt slidable between an open and a closed position. The bolt preferably operates as a firing valve by permitting compressed gas to flow through the bolt when the bolt is in the closed position but preventing the transfer of compressed gas through the bolt when in the open position. This can be accomplished, for instance, by arranging a sealing member in communication with a surface of the bolt. A port is also 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 in an open position, the sealing member prevents compressed gas from flowing into the bolt, but when the bolt is in a closed position, compressed gas is permitted to flow into the bolt. Movement of the bolt is preferably controlled using a control valve such as an electronic solenoid valve.

Abstract: Methods and apparatus for connecting a high-pressure fluid source to a paintball marker using an adapter that may have in-line inlet and outlet and connect directly to the paintball 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: The present invention comprises a novel hammer and biasing system in a paintball pistol to achieve automatic re-cocking with closed bolt results in a marker pistol configuration typically associated with open bolt systems. The trigger releases a compressions hammer that nests in a hammer sleeve, but an aperture in the hammer sleeve permits a protrusion on the compression hammer to strike a poppet valve which releases a burst of gas. The gas pressure forced into the barrel causes the paint ball to be expelled from the barrel, and forces the hammer and bolt assembly aft due to increased pressure in the lower bore. The pressure against the front wall of a hammer sleeve pushes the hammer sleeve aft, along with the compression hammer. Also, because the bolt is interconnected to the hammer sleeve it is forced back in the upper barrel as well. When forced back, the bolt allows the breach to open and a paintball to drop into the chamber. Also, the sear catches the compression hammer in the cocked position.

Abstract: The present invention is a mounting bracket used to attach a compressed gas system to a lower side surface of a paintball gun. The mounting bracket positions the compressed gas system in relation to the paintball gun such that it lowers the vertical profile of the paintball gun system and shortens its overall length with respect to the user's body, and prevents the compressed gas system from obstructing the user's arm when grasping the paintball gun. The mounting bracket positions the tank such that a considerable portion of the paintball gun system's weight is borne by the user's shoulder, and makes the paintball gun system easier to stabilize while in motion or at rest.

Abstract: A tank mountable stock arm monopod for pneumatic guns or the like has an arm mounting saddle fastened to the compressed gas tank of a pneumatic gun with adjustable stabilizing straps. The arm mounting saddle has a pivotally mounted coupling that connects with the arm mounting saddle and the lower stock arm. The lower stock arm comprising of a cylindrical section that fits into the saddle arm coupling. The sliding upper stock arm is a cylindrical section smaller in diameter than the lower section enabling the sliding section to fit and move inside the stationary section in a telescoping movement, allowing the length of the stock to adjust to the user. A stock arm butt is pivotally mounted to the sliding stock arm opposite the stationary stock arm. The stock arm monopod is put into the monopod position by loosening the stabilization straps and spinning the apparatus 180 degrees so that the stock arm butt is pointing towards the playing surface.

Abstract: A paintball shooting structure includes a cartridge in combination with a percussion device to receive multiple paintballs therein and is provided for a paintball gun. When an impact section of a firing pin of the percussion device is struck, the striking force pushes the firing pin to move forward such that the total length from a plug head formed in a front end of the plug to the impact section is shortened. Meanwhile, compressed gas is released out of the cartridge to push the plug to move rearward along an annular section of an outer sheath. Besides, the compressed gas immediately rushes into each paintball feeder in the cartridge so as to shoot each paintball in a respective one of the paintball feeders out of the cartridge.

Abstract: A pneumatic assembly for a paintball gun preferably includes a bolt 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 compressed gas powered gun having a valve assembly (40) for regulating the pressure from shot to shot, a trigger assembly (36) which alters the mode of operation of the gun and a bolt (38) for providing a recoil action and for releasing the gas from the valve assembly (40). The valve assembly (40) provides sufficient pressure to expel a projectile and to re-set the bolt (38) into its firing position. The trigger assembly is formed from a trigger (26), a four-position selector switch (46), and a sear (74). The gun uses an operation rod (118), which is integrally connected to the bolt (38) to advance the gun's magazine.

Abstract: In a paintball gun in which projectiles are admitted into the breech from a feed port through a radial aperture, sensors positioned in line with the aperture detect whether a projectile is completely or partially inserted into the breech, or totally missing. An electronic logic circuit allows the firing of the gun only when the projectile is fully inserted, and prevents the firing when the projectile is only partially inserted into the breech. A dry firing of the gun is enabled if the breech remains empty of any projectile for a short period. The dry firing is intended to dislodge any projectile jammed in the feed port.

Abstract: A paintball gun throttle regulator device includes a body, an adjusting bolt, an elastic element, an adjusting piston, and a cocking. The body comprises a piston chamber, an air chamber next to the piston chamber, and a connecting chamber. The piston chamber and the connecting chamber are formed with threads inside and comprise air release holes, respectively. The air chamber is interconnected with the connecting chamber by through holes. The air chamber comprises an air outlet. The adjusting bolt is threadedly connected to the piston chamber with one end engaging with one end of the elastic element which has another end engaged with one end of the adjusting piston. The adjusting piston is slid into the piston chamber. The adjusting piston has another end secured with one end of the cocking. The cocking has another end extending through the piston chamber and the air chamber and into the connecting chamber.

Abstract: An adapter assembly for releasably interconnecting a pressurized bottle with a paintball marker, wherein the adapter assembly includes a piercing pin moveable between retracted position and an extended position. The adapter assembly includes an internally threaded female socket for releasably engaging the pressurized bottle, and an externally threaded male head for releasably engaging a corresponding female connector on the paintball marker. The spacing of the threaded connections and the travel of the piercing pin are selected such that the piercing pin punctures a frangible seal of the pressurized bottle subsequent to fluid interconnection of both the pressurized bottle and the paintball marker with the adapter assembly.

Abstract: A hopper for a paintboll gun is disclosed. The hopper is a gravity feed hopper and has a lower profile than those in the previous art. The hopper fits closely to the profile of the paintball gun and may have multiple chambers along with unidirectional gates to control the flow between chambers and within chambers as well. This invention may take the form of a hopper mounted onto a previous type of paintboll gun as an aftermarket add-on or it may be built into the paintball gun itself as part of its construction.

Abstract: The invention relates to a paintgun with pneumatic feeding and discharging process characterized by a pneumatic delivery mechanism. The pneumatic delivery mechanism comprises a flow-guiding body forming a major air channel at front end and a flow-guiding chamber at rear end thereof, a flow-guiding movable body utilizing a valve body to divide the flow-guiding chamber into a front and a rear air pressure chamber with different pressure area and a delivery tube placed around a tube at front part of the flow-guiding body. Moreover, a stopper controls the opening or closing of air flow channel, thereby changing the pressure difference between the front and the rear air pressure chambers. The delivery tube is shifted forward by a small amount of air flow fed into a minor air channel for pushing a paintball a little forward. Thereafter, the paintball is discharged by thrust of air flow into the major air channel.

Abstract: The invention relates to a paintgun having a barrel assembly with a barrel and a firing mechanism for paintballs; a trigger assembly connected with the barrel assembly for actuating the firing mechanism; and a revolving disc for feeding paintballs interposed between the barrel and the firing mechanism; a series of uniformly spaced paintball holes being formed at the rim of the revolving disc that is rotatable by a driving apparatus to bring the paintballs within the paintball holes to a discharge area coaxial to the barrel for discharging the paintballs; and a paintball adjacent to the revolving disc and the firing mechanism within the barrel assembly being provided for storing the paintballs disposed. Meanwhile, the paintball container includes a guiding slope for directing the paintballs into the paintball holes. The revolving disc with the paintballs is rotatable one after another to the discharge area.

Abstract: A valve configuration of an air pressure steel jar of a paint ball gun, more specifically, a valve configuration comprises a manual wheel disposed at the bottom end of the air pressure steel jar; the said manual wheel directly links a valve needle to work a valve seat axially disposed inside the steel jar; the said valve seat, via a conduct hole, directly conducts the gas pressure therein to the bore of the paint ball gun for application; a fuse manner of using a forced band fuse is disposed at the rear lateral end of the said manual wheel, relative to the valve needle, for the steel jar to obtain safe guarantee of pressure load.

Abstract: A paintball gun is sized and designed to appear like and operate in a manner similar to a conventional handgun. A removable magazine stores projectiles and propellant. The entire magazine is small enough to fit into a handle of a pistol. The magazine may be integrated with propellant and projectile portions locked together or separable. Standard carbon dioxide cartridges fit within the magazine. Paintballs may be staggered to increase the maximum magazine load. A user may selectively release just the projectile portion of the magazine, in order to leave the propellant undisturbed until fully expended. The magazine can be completely removed without substantial loss of propellant.

Abstract: An assembly (10) having an outer barrel (12) and an inner barrel (30) having a pair of dissimilar sized bearings (38, 40) which are press fit within the outer barrel (12) and which permit the inner barrel (30) to mechanically rotate by the use of a motor assembly (50), a gear assembly (52), a battery (92), a gear (36), and a switch (54) having a depressible plunger (56) and a method for increasing the accuracy of a paint projectile by use of the assembly 10.

Abstract: The present invention discloses an improved structure for a toy gun comprises a body, which includes an upper moving trough and a lower moving trough, both are parallel to each other and connected via a connecting trough; inside the upper moving trough is an extruder and inside the lower moving trough is arranged a rear portion, a mechanical component connecting to the rear portion and a valve controller connecting to the mechanical component in series from a rear end of the lower moving trough. Wherein, for the design of the extruder, the connecting piece is driven by the pulling portion, thus to rotate the pulling portion is to generate relative and radial motions among the connecting piece in the connecting trough, the injection portion and the mechanical component; further that, the connecting piece is taken off from the mechanical component to terminate the connecting stage of the extruder and the mechanical component.

Abstract: A paintball marker is provided including a body, a bolt and an actuator. The body defines a chamber having a paintball inlet. The bolt is slideable within the chamber between an open position wherein the bolt permits the entry of a paintball through the paintball inlet into the chamber, and a closed position wherein the bolt prevents the entry of a paintball through the paintball inlet into the chamber. The actuator is operatively connected to the bolt. The actuator is adapted to apply an opening force to move the bolt towards the open position and a closing force to move the bolt towards the closed position. The closing force is different from the opening force.

Abstract: Disclosed is a filling system for loading one or more paintball reservoir tubes with paintballs. The system is made of a paintball fill funnel and a support for at least one, and preferably a plurality of reservoir tubes. The fill funnel is dimensioned to fit within the reservoir tube and rest on the rim of the reservoir tube. A support shoulder, rim, or plurality of support shoulders on the outside of the fill funnel form a stable plane atop the tube rim. Each funnel can have more than one spout that communicates with a central funnel chamber for filling a plurality of paintball reservoir tubes simultaneously. The tube support can take a variety of configurations.

Abstract: A compressed gas powered gun provides recoil simulating the recoil of a gun firing gunpowder propelled projectiles. The valve assembly provides both consistent shot to shot pressure, and rearward gas pressure for generating recoil. Preferred embodiments of the compressed gas powered gun may include 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 air gun provides consistent gas pressure behind the projectile from shot to shot. A magazine and magazine indexing system for loading projectiles into the firing chamber in a manner contributing to the accuracy of the air gun is also provided.

Abstract: The present invention discloses an improved structure for a toy gun comprises a body, which includes an upper moving trough and a lower moving trough, both are parallel to each other and connected via a connecting trough; inside the upper moving trough is an extruder and inside the lower moving trough is arranged a rear portion, a mechanical component connecting to the rear portion and a valve controller connecting to the mechanical component in series from a rear end of the lower moving trough. Wherein, for the design of the extruder, the connecting piece is driven by the pulling portion, thus to rotate the pulling portion is to generate relative and radial motions among the connecting piece in the connecting trough, the injection portion and the mechanical component; further that, the connecting piece is taken off from the mechanical component to terminate the connecting stage of the extruder and the mechanical component.

Abstract: A paintball marker is provided including a body, an inlet control device, a firing system, a first regulator and a second regulator. The body has a paintball inlet and a barrel for receiving a paintball from the paintball inlet. The inlet control device is movable between an open position wherein the inlet control device permits entry of a paintball through the paintball inlet, and a closed position for chambering a paintball. In the closed position the inlet control device prevents entry of a paintball through the paintball inlet. The firing system includes a firing valve that is moveable between a firing position wherein the valve permits firing gas at a selected pressure to flow to the barrel and a non-firing position wherein the firing valve prevents flow of firing gas to the barrel. The first regulator is fluidically connectable to the pressurized gas source and is configurable to provide gas at a first pressure.

Abstract: A toy gun includes a gun body, a support seat, a magazine, a gas control device, and a slide. The gas control device is mounted in the support seat and includes a link, a press plate, a baffle, a first clamping block, a driven block, a second clamping block, a limit plate, a hammer, a first shaft, and a second shaft. Thus, the gas control device can control operation of the gas valve of the gas chamber of the magazine exactly, so that the toy gun is operated smoothly and stably.

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 paintball gun is sized and designed to appear like and operate in a manner similar to a conventional handgun. A removable magazine stores projectiles and propellant. The entire magazine is small enough to fit into a handle of a pistol. The magazine may be integrated with propellant and projectile portions locked together or separable. Standard carbon dioxide cartridges fit within the magazine. Paintballs may be staggered to increase the maximum magazine load. A user may selectively release just the projectile portion of the magazine, in order to leave the propellant undisturbed until fully expended. The magazine can be completely removed without substantial loss of propellant.

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 paint ball marker 10 is provided with a rapid loading and firing configuration. A compressed gas is fed to a trigger valve 30 which controls a position of a ram 40. When a trigger 24 is pulled, the trigger valve 30 directs air to the ram 40 so that a piston 44 within the ram 40 causes a unity bracket 50 to move. This unity bracket 50 controls an activator valve 60, causing a charge of compressed gas to be released from a charge chamber 80 to an entrance 91 of the firing chamber 90 where a paint ball is fired from the firing chamber 90. The unity bracket 50 also causes a loading slide 100 to activate a door 110 immediately after firing of the paint ball from the firing chamber 90 so that the door 110 is moved from a closed position to an open position. In the open position a loading hole 96 routes another paint ball into the firing chamber 90.

Abstract: A pneumatic spear gun has a stock supporting a barrel. The gun uses compressed gas to power a spear having movable vanes that slide along the shaft to become fixed at the base of the spear to rotate the spear and stabilize trajectory. The compressed gas is stored in a high pressure tank in the fore arm of the gun. The tank also has a breathing regulator and mouthpiece. There is a gas handling system between the tank and the barrel for providing multiple single shots and regulating the flow of expanding gases.

Abstract: A paintball marker is provided including a body, a bolt and an actuator. The body defines a chamber having a paintball inlet. The bolt is slideable within the chamber between an open position wherein the bolt permits the entry of a paintball through the paintball inlet into the chamber, and a closed position wherein the bolt prevents the entry of a paintball through the paintball inlet into the chamber. The actuator is operatively connected to the bolt. The actuator is adapted to apply an opening force to move the bolt towards the open position and a closing force to move the bolt towards the closed position. The closing force is different from the opening force.

Abstract: The present invention is a specially curved discharge port and port within a bolt within the breech for a compressed gas powered gun for the firing of projectiles. The invented gun has many improvements over the prior art including the use of improved gas pressure routing allowing for operation at lower pressures with no decrease in firing rate, efficiency, trajectory, or range. The structure of the present invention provides for embodiments which include the use of specific maximum angles within the gas passage from a compressed gas storage chamber and a portion of the breech through which the gas is routed as it expands to launch a projectile from the gun.

Abstract: The present invention is a projectile launching system having an independently operable gas powered less-lethal launcher, which is capable of firing projectiles containing either incapacitating, debilitating, or marking agents for use during those situations when lethal force would be an inappropriate response. The gas powered launcher is ergonomically designed and comprises a receiver housing and receiver that are detachable from a stand-alone stock so that it can be attached to a mounting bracket located underneath the barrel of a rifle and, therefore, integrated with such rifle in order to provide both a lethal and a less-lethal capability for the user. One of the ergonomic features of the receiver is that it is designed to releasably carry a compressed gas container in a way that presents a favorable profile and a convenient and efficient trigger location, even after attachment of the receiver to the barrel of a rifle.

Abstract: Sound producing apparatus (20) is disclosed which simulates a fire cracker. The apparatus comprises a selectively actuatable aerosol (24) which fills a chamber (35) with compressed fluid which, when a certain pressure is reached, blows off a cap (38) creating a shower of confetti (39) and a loud bang. In other embodiments, a plurality of elastomeric members filled with compressed air which are ruptured or a selectively operable compressed fluid container formed by the apparatus housing, art used to create a similar effect.

Abstract: An adapter assembly for releasably interconnecting a pressurized bottle with a paintball marker, wherein the adapter assembly includes a piercing pin moveable between retracted position and an extended position. The adapter assembly includes an internally threaded female socket for releasably engaging the pressurized bottle, and an externally threaded male head for releasably engaging a corresponding female connector on the paintball marker. The spacing of the threaded connections and the travel of the piercing pin are selected such that the piercing pin punctures a frangible seal of the pressurized bottle subsequent to fluid interconnection of both the pressurized bottle and the paintball marker with the adapter assembly.

Abstract: A paintball gun is disclosed, which includes at least one aiming and/or pointing device mount assembly connected to, affixed to or integral with a paintball gun's hopper, adapter, and/or feed tube.

Abstract: A paint ball gun is disclosed including a forward mounted gas supply system. The gas supply systems includes a straight or bent direct connection between the low pressure portion of the paintball gun and the gas cylinder and includes a gas cylinder securing and support assembly. The bent direct connections attach to the gas cylinder and the securing and support assembly is attached to the gun handle and can also include a socket surrounding a major portion of the cylinder. In the straight configurations, the securing and support assembly includes the socket and optionally a support arm attached at the gun handle.

Abstract: A paintball gun is sized and designed to appear like and operate in a manner similar to a conventional gun. A dual-action firing bolt moves forward, assisting in launching a projectile, under cast pressure. The bolt then releases the compressed gas to carry the projectile down the barrel. Return springs operate to move the bolt and its valves to a ready-to-fire position. Similarly, trigger actuation mechanisms are spring-actuated to return to the ready-to-fire position. A removable magazine stores projectiles and propellant. The magazine is small enough to fit into a handle of a pistol. A user may selectively release just the projectile portion of the magazine, in order to leave the propellant undisturbed until fully expended. The magazine can be completely removed without substantial loss of propellant.

Abstract: A paint ball gun is disclosed including a forward mounted gas supply system.

Abstract: An improved pressure regulator for pneumatic guns, with an improved and simplified design incorporating a rotating gas fitting with a gas inlet port; modular construction to allow fitting to different pneumatic guns/air sources/configurations; better pressure output stability at pressures lower than 200 psi; and improved ease of maintenance. There is also a sliding, externally actuatable check valve for pneumatically isolating one pneumatic component of the paintball gun from another pneumatic component.

Abstract: Disclosed is a filling system for loading one or more paintball reservoir tubes with paintballs. The system is made of a paintball fill funnel and a support for at least one, and preferably a plurality of reservoir tubes. The fill funnel is dimensioned to fit within the reservoir tube and rest on the rim of the reservoir tube. A support shoulder, rim, or plurality of support shoulders on the outside of the fill funnel form a stable plane atop the tube rim. Each funnel can have more than one spout that communicates with a central funnel chamber for filling a plurality of paintball reservoir tubes simultaneously. The tube support can take a variety of configurations.

Abstract: Apparatus and method for separating and replacing a cap from a shank of a tip of a welding electrode. The cap and the shank form a peripheral hollow joint that is defined by a recessed end surface of the shank and a back surface of the cap. The apparatus includes a guide frame having a recessed portion sized for receiving the tip of the welding electrode. The apparatus also includes a cap withdrawing tool movably mounted on the guide frame. The tool has two facing wall sections each having a wedge that is inserted in the peripheral hollow joint. The wedge is forced against the back surface of the cap and removes the cap from the shank by means of a driving mechanism that moves the cap withdrawing tool toward the tip of the welding electrode that is engaged in the recessed portion of the guide frame.