Abstract: A pneumatic assembly for a projectile launching system including a body defining a continuous bore. A nozzle is positioned within the bore adjacent the forward end of the body and is moveable between a rearward position wherein the nozzle facilitates passage of a projectile through a projectile port and a forward position wherein the nozzle blocks the projectile port to prevent passage of a projectile therethrough.

Abstract: An airgun has a high pressure reservoir for providing a pressurized motive gas to a breech to fire a projectile. A regulator is intermediate the high pressure reservoir and a downstream firing pressure reservoir for providing a consistent regulated pressure of the motive gas in the firing pressure reservoir. The airgun includes a bypass line for selectively connecting the high pressure reservoir to the firing pressure reservoir, independently of the regulator. Thus, an operator can select a firing of the airgun with either a regulated gas pressure in the firing reservoir or the pressure of the high pressure reservoir.

Abstract: Invention relates to a replaceable barrel block allowing use of barrels of different calibers on a rifle or pistol by means of providing two blocks consisting of barrel and other equipment on the barrel and manually mountable by the user without need for any additional mounting kits for manual and semi-automatic air rifles and air pistols operated pneumatically.

Abstract: A dual-purpose type gas-valve structure especially related to a gas-gun gas-valve used for controlling the igniting and releasing of gas. It is specially designed with the horizontal and vertical gas entrance types coexisting structure to facilitate selecting different types to insert and connect the high-pressure steel cylinder depending on the gun type. It mainly consists of a box-body set with several connected horizontal and vertical channels inside; wherein a group of vertically intersecting channels located below can respectively insert into the high-pressure steel cylinder from the horizontal entrance and the vertical entrance from outside; wherein the lower-layer horizontal channel located at the upper f-type channel belongs to the high-pressure gas control room and the touch-press port, and the gas can be thereby released to the vertical channel and strongly ejected out through the upper-layer horizontal channel to instantaneously propel and launch out the bullet of the connecting barrel.

Abstract: A pneumatic assembly for a projectile launching system including a body defining a continuous bore. A nozzle is positioned within the bore adjacent the forward end of the body and is moveable between a rearward position wherein the nozzle facilitates passage of a projectile through a projectile port and a forward position wherein the nozzle blocks the projectile port to prevent passage of a projectile therethrough.

Abstract: A hydraulic circuit for a hybrid powertrain having an engine and an electric motor. The hydraulic control circuit includes a first pressure regulating valve configured to cooperate with a shift valve for selectively communicating a hydraulic fluid to a hydraulic piston actuator of a clutch assembly for engaging the engine to a driveline. The hydraulic control circuit further includes a second pressure regulating valve configured to selectively communicate a flow of hydraulic fluid to a cooling circuit for the cooling of the electric motor and to cooperate with a check valve and the shift valve to actuate the hydraulic piston actuator during a predetermined fail mode of the first pressure regulating valve, thus providing a limp-home mode by coupling the torque output from the engine to driveline of the vehicle.

Abstract: A cylinder of pressurized fluid, including a valve assembly housing a fluid circuit including at least one shut-off valve, the cylinder being equipped with a bonnet for protecting the valve assembly including a rigid structure delimiting a protective volume around the valve assembly, including a pressure indicating device including at least one piston sensitive to the pressure in the cylinder and mobile relative to the body of the valve assembly according to the level of pressure in the cylinder between at least a retracted first position and a deployed second position, the pressure indicating device including at least one mobile information support configured to collaborate mechanically with the piston, the information support being able to move between at least two distinct positions or states to symbolize respectively at least two levels of pressure according to the position of the piston.

Abstract: Systems and methods are disclosed for a fluid-based projectile launcher having a housing, that may also include a barrel portion, and a propellant fluid chamber. Disclosed embodiments also include a valve assembly that controls flow of propellant fluid from the propellant fluid chamber to the barrel portion through a fluid passageway, and an adjustable block assembly that controls motion and/or position of the valve assembly.

Abstract: An air cylinder for pneumatic guns including a cylinder body. The cylinder body includes a side wall, a tubular air storage chamber, a piston capable of axially sliding along the side wall, an air charging hole, and an elastic member. The piston divides the air storage chamber into a first cavity and a second cavity. The air charging hole communicates with the first cavity. The elastic member is disposed in the second cavity and is capable of continuously pushing the piston towards the first cavity.

Abstract: An airgun has a high pressure reservoir for providing a pressurized motive gas to a breech to fire a projectile. A regulator is intermediate the high pressure reservoir and a downstream firing pressure reservoir for providing a consistent regulated pressure of the motive gas in the firing pressure reservoir. The airgun includes a bypass line for selectively connecting the high pressure reservoir to the firing pressure reservoir, independently of the regulator. Thus, an operator can select a firing of the airgun with either a regulated gas pressure in the firing reservoir or the pressure of the high pressure reservoir.

Abstract: Disclosed is a toy gun for a survival game, comprising: a cartridge chamber in which projectiles that are fed from a magazine are individually loaded; a toy gun main body including a barrel connected with the cartridge chamber, and a handle portion; a cylinder assembly installed to be capable of reciprocating within the barrel, and having a rack gear member; a piston unit which can retract together with the cylinder assembly and be stationary in a ready-to-fire state, and which enters into the cylinder assembly when firing from the ready-to-fire state to provide high-pressure air through the cylinder assembly to the cartridge chamber to fire the projectile; and an operation control device that automatically operates and controls the movements of the cylinder assembly and the piston unit for each firing mode in order to fire the projectile supplied to the cartridge chamber.

Abstract: A rotary wing unmanned aerial vehicle and pneumatic launcher system includes a rotary wing unmanned aerial vehicle and a pneumatic launcher. The rotary wing unmanned aerial vehicle includes a pressure tube, a launch detector, and a center controller. The pressure tube has an open end and a closed end. The launch detector is coupled to the center controller and detects the launch of the rotary wing unmanned aerial vehicle. The pneumatic launcher includes a launch gas reservoir, a launch tube, and a release valve. The release valve is located between the launch gas reservoir and the launch tube. The gas reservoir holds launch gas. The launch tube is inserted into the pressure tube through the open end.

Abstract: A three-stage air pump assembly for a pneumatic air gun. The three-stage air pump assembly includes an air compression assembly and an energy storage assembly disposed on a gun support of the pneumatic air gun. The energy storage assembly includes a three-stage air pump and a main check valve disposed at the end of the air pump. The three-stage air pump includes a front fixed sheath, a rear fixed sheath, a front movable sheath, a rear movable sheath, a first tube, a second tube, a third tube, and a piston rod. The diameters of the first tube, the second tube and the third tube are successively reduced. An intake sleeve on the main check valve is sealed and fixedly connected in the rear fixed sheath. Front and rear ends of the first tube are sheathed on the front fixed sheath and the rear fixed sheath, respectively.

Abstract: A pneumatic air gun including a gun support, a barrel disposed on the gun support, a valve body, a pressure gauge, an air compression assembly, an energy storage assembly, and a triggering assembly. The air compression assembly is connected to the energy storage assembly, and the energy storage assembly is connected to the valve body. The triggering assembly includes a trigger support fixed to the gun support and a pull-bolt assembly, a trigger, a trigger button, and a hammer disposed on the trigger support. A spring is attached to the hammer. The trigger is connected to the trigger button. A loading thimble in the pull-bolt assembly slides on the gun support. The loading thimble is movably connected to the hammer and is adapted to control the hammer to reset and to be clamped on the trigger button.

Abstract: Methods and apparatus for direct visual rhizotomy using an elongated tubular sheath. The sheath includes: a proximal end configured to removably receive a cannula; a distal end; a horizontal shaft having a longitudinal axis extending between the proximal end and the distal end; a first cut-away generally defining a first plane at the distal end, the first cut-away characterized by a first angle relative to a vertical plane; and a second cut-away generally defining a second plane at the distal end, the second cut-away characterized by a second angle relative to a horizontal plane. The sheath further includes an endoscope camera disposed at the distal end, the camera having a line of sight substantially orthogonal to the first plane.

Abstract: An air gun includes two different types of energy sources that may be used to fire a projectile. A first type of energy source may include an air cylinder having a piston that moves through a cylinder, as urged by a mechanical spring or gas strut, to create compressed air charge for firing a projectile. A second type of energy source may include a compressed gas storage tank that holds compressed air, or another propellant, that is released during firing to urge the piston through the air cylinder to create a compressed air charge for firing a projectile. An air gun may, additionally or alternately, include features that promote efficient delivery of a compressed air charge to a transfer port and projectile chamber, during firing. Examples of such features include piston configurations that reduce or prevent piston rebound through the interaction of the piston face and air cylinder, upon impact.

Abstract: A device for launching using compressed fluid, comprises: a projectile, a barrel having two ends, the projectile being positioned inside the barrel, a first of the two ends allowing the compressed fluid to enter the barrel, a second of the two ends allowing the projectile to leave, a reservoir of compressed fluid connected to the first of the two ends of the barrel. A connecting device comprises a first tape, able to make the transition from a configuration in which it is wound about an axis Z around a support to a configuration in which it is deployed along an axis X substantially perpendicular to the axis Z, the tape having an end fixed to the projectile, and wherein the support is fixed in the barrel.

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: A gundog training tool prevents gun shyness by gradually allowing a pup to adapt to the sound of a gunshot. A pop gun shoots treats upon creating a simulated gunshot so that the dog grows used to the sound of a gunshot and creates positive reinforcement rewarded by the treat. As the pup learns, a charge in a housing is introduced to provide a simulated gunshot that expels a treat that trains the dog to feel excitement at the sound and smell of a gunshot. The size of the charge adjusts to create louder simulated gunshots as the pup learns so that the pup is prepared for introduction to actual gunshots, such as from a shotgun shooting at a bird.

Abstract: A toy launch apparatus with a safety valve. The safety valve includes a stationary valve component with a tubular shape and an open inlet end. Ports in the tubular component help define an air path from the open inlet through the ports. A slideable valve component including a sleeve portion and extending fingers slides along an outer surface of the stationary valve component. A valve spring biases the slideable valve component forward to close the ports and when a dart is loaded, a back wall of the dart pushes the extending fingers of slideable valve component rearward to open the ports. In the open position the slideable valve component is out of the air path such that no pressure drop is attributed to the slideable valve component. When the dart is discharge, the valve spring biases the slideable valve component forward to close the ports.

Abstract: An air rifle including a supporting frame, a barrel, a pneumatic assembly, an air storage assembly, and a firing assembly. The barrel, the pneumatic assembly, the air storage assembly, and the firing assembly are all disposed on the supporting frame. The pneumatic assembly is connected to the air storage assembly. The air storage assembly includes an air cylinder, an air valve disposed at one side of the air cylinder, and a plastic member disposed at a connection part of the barrel and the air valve. A firing pin is fixed on the tail of the plastic member. The firing assembly includes a trigger support fixed on the supporting frame, a pushrod disposed on the trigger support, a trigger, a trigger buckle, and a hammer. The trigger is connected to the trigger buckle. The pushrod is adapted to slide on the trigger support.

Abstract: Marker tag darts, dart guns therefor, and methods which allow a toy gun to receive a marker tag dart, to put water in the forward tip of the dart and to shoot the dart. The marker tag dart itself has slits in the wall of a small chamber at the front of the dart so that on impact with a target, the inertia of the water causes deformation of the tip and opening of the slits to eject water for marking the location of the marker tag dart hit. The dart guns are spring chocked, and propel the dart with a blast of air from an air pump powered by the spring. Various embodiments and modes of operation are disclosed.

Abstract: A projectile launching device, comprising a housing having a barrel at one end, an air pulsator within the housing having an inlet and an outlet, a pump communicating with the inlet of the air pulsator for pumping air into the air pulsator to pressurize the air therein, a projectile chamber within the barrel for receiving a projectile to be launched, and a valve in the outlet of the air pulsator which is normally closed to permit the pump to pressurize the air therein to a desired level, the valve being openable to produce an air pulse discharge therefrom into the projectile chamber, and thereby launch the projectile from the barrel at a velocity according to the force applied to the projectile by the air pulse discharge.

Abstract: A gas supply system for store ejection from a vehicle comprises a receiver assembly, a compressor connected to the receiver assembly, and a gas storage vessel removably coupled to the receiver assembly, wherein the gas storage vessel is capable of receiving and storing pressurized gas from the compressor.

Abstract: The present device is a launcher for a projectile, comprising an enclosure that is adapted to be held by a human hand. The enclosure comprises a barrel aperture, a pump aperture, and a trigger aperture. The launcher further comprises a pump assembly that comprises a pump piston traversing the pump aperture. The pump piston is configured to be actuated by a user and can be reciprocated in and out of a pump cylinder. The launcher comprises a compression chamber in fluid communication with the piston cylinder through a check valve that only allows air to pass from within the piston cylinder into the compression chamber. The launcher comprises a trigger that opens the compression chamber and sends compressed air into a barrel that can have a projectile stored therein. The trigger is configured to be manually operated by a user. The barrel is in fluid communication with the compression chamber through a trigger valve.

Abstract: The present device is a launcher for a projectile, comprising an enclosure that is adapted to be held by a human hand. The enclosure comprises a barrel aperture, a pump aperture, and a trigger aperture. The launcher further comprises a pump assembly that comprises a pump piston traversing the pump aperture. The pump piston is configured to be actuated by a user and can be reciprocated in and out of a pump cylinder. The launcher comprises a compression chamber in fluid communication with the piston cylinder through a check valve that only allows air to pass from within the piston cylinder into the compression chamber. The launcher comprises a trigger that opens the compression chamber and sends compressed air into a barrel that can have a projectile stored therein. The trigger is configured to be manually operated by a user. The barrel is in fluid communication with the compression chamber through a trigger valve.

Abstract: A pneumatic toy gun with a hammer assembly disposed inside a barrel is provided. The hammer assembly includes a first hammer and a second hammer, wherein the first hammer is disposed in front of the second hammer and the second hammer includes a notch. A first elastic element pushes the rear end of the first hammer and a second elastic element pushes the rear end of the second hammer. A first tackling block is disposed below the hammer assembly and rotatable around the pivot. The rear end of the first tackling block is stuck into the notch of the second hammer. A second tackling block is disposed adjacent to the first tackling block and includes a trough allowing the pivot to be disposed in. The rear end of the second tackling block is stuck into the notch of the second hammer. A third elastic element pushes the underneath of the rear half portion of the first tackling block. A fourth elastic element pushes the underneath of the rear half portion of the second tackling block.

Abstract: A toy gun is operated by water under pressure, supplied from a conveniently available source of water under pressure, such as a garden hose connected to a municipal water supply, a household water supply, or a similar source of water under pressure, to launch a projectile, such as a water-filled balloon, along, and preferably through, the barrel of the gun. The projectile is coupled with a firing chamber, preferably by being placed in the firing chamber, adjacent the barrel, and water under pressure is admitted to an actuator for actuating an air compressor which, in turn, creates compressed air that is accumulated in an air chamber and then selectively released to the firing chamber to launch the projectile from the barrel.

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.

Abstract: A launch vehicle includes an air pump, an injection valve, a connecting member, a trigger, and a projectile. Thus, the launch vehicle is operated on the ground and is also operated in a hand-held manner, thereby enhancing the amusement effect of the launch vehicle. In addition, the user only needs to hold the air pump and the trigger so as to launch the projectile easily and conveniently in an energy-saving manner, thereby facilitating the user operating the launch vehicle. Further, the launch vehicle has a simplified construction to perform the hand-held launching function, thereby decreasing the costs of fabrication. Further, the launch vehicle is further provided with a safety device to prevent the trigger from being triggered unintentionally to protect the user's safety.

Abstract: A projectile launching device, comprising a housing having a barrel at one end, an air pulsator within the housing having an inlet and an outlet, a pump communicating with the inlet of the air pulsator for pumping air into the air pulsator to pressurize the air therein, a projectile chamber within the barrel for receiving a projectile to be launched, and a valve in the outlet of the air pulsator which is normally closed to permit the pump to pressurize the air therein to a desired level, the valve being openable to produce an air pulse discharge therefrom into the projectile chamber, and thereby launch the projectile from the barrel at a velocity according to the force applied to the projectile by the air pulse discharge.

Abstract: A toy gun that uses air to launch an elongated dart having a rear bore. The toy gun barrel defines a chamber adapted to receive the elongated dart. The barrel has an inner surface which forms a restriction proximate to the second end. The restriction reduces a barrel cross-section. The barrel receives an end portion of the elongated dart therein so that the pressurized air initially pressurizes the rear bore of the elongated dart and pressurizes the chamber outside of the elongated dart between a first barrel end and the restriction as the dart is launched.

Abstract: An apparatus for regulating and discharging gas includes a differential piston with first and second faces of unequal area. The differential piston reciprocates within a housing between a storage chamber and a discharge chamber, and includes an aperture extending between the first and second faces to allow the storage chamber to communicate with the discharge chamber. A spring positioned against the piston face with the smaller surface area biases the differential piston in the direction of the piston face with the larger surface area. The use of the apparatus allows a pneumatic device such as a pellet gun or a nail gun to rapidly recharge the firing chamber between firing cycles.

Abstract: A pneumatically and manually actuating toy gun structure includes a main body, a barrel, an energy source, a first control portion, and a second control portion. When the toy gun structure is driven by high-pressure gas, one can pulls the pivotally furnished connecting rod by pressing the trigger of the first control portion, and the meshing catch portion furnished beneath the connecting rod is capable of exactly driving the hook portion of the knock hammer making it generate a rotational power to hit the gas valve and letting the gas flow into the barrel through the sleeve barrel of the second control portion and shoot the plastic bullets. However, when the gas is used up, one can directly pull the handle of the piston of the second control portion making the piston move backward and letting a flange beneath the piston exactly catch an angle portion of a piston catch.

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 projectile launcher for launching soft projectiles. The projectile launcher features a breech loading mechanism for loading soft projectiles into the launcher. The projectile launcher includes a pressure vessel which is pressurized by a positive displacement type pump which pumps ambient air into the pressure vessel. The butt stock is integrated to the piston of the pump so that the user may pressurize the pressure vessel by sliding the butt stock back and forth with respect to the pressure vessel. A specialized release valve is provided for optimum release of the pressure charge. Operating pressure for the launcher is limited by the pump design to prevent injury.

Abstract: A moisture resistant handbill is rolled to form a coil that is retained within a collapsible cup as it is ejected from an elongated tube and delivered to its destination. The collapsible cup has a cylindrical wall and a bottom member at one end that does not contribute to the structural strength of the cup. The elongated tube is connected to a controllable source of pressurized fluid that is used to eject the handbill assembly from the tube. The handbill assembly and delivery system avoids the problems of prior assemblies and systems that projected cone-shaped paper flyers through the air. Moisture resistance is provided by a plastic sheet, which may be larger than the coiled handbill, that wraps the handbill along its length prior to insertion.

Abstract: Apparatus for storing and discharging gas includes a housing having an inlet and an outlet. A floating differential piston is mounted to reciprocate in the housing and divide the housing into a storage chamber adjacent the housing inlet and a discharge chamber adjacent the housing outlet. A check valve in the housing inlet admits gas to the storage chamber. A conduit extends through the piston from the storage chamber to the discharge chamber. A pressure relief valve in the conduit is set to maintain a higher pressure in the storage chamber than in the discharge chamber. A first sliding seal is disposed between the housing and an end of the piston adjacent the housing inlet. A second sliding seal is disposed between the housing and an end of the piston adjacent the housing outlet.

Abstract: The present invention is directed to a pneumatic toy gun which may include a cylinder having an open end and an outlet, a piston disposed within the open end of the cylinder, and a valve having a valve inlet and a discharge outlet. The valve may have a normal position wherein the discharge outlet is sealed to prevent the flow of air through the discharge outlet, and an open position wherein the discharge outlet is unsealed to permit the flow of air through the discharge outlet, with the outlet of the cylinder being in fluid communication with the valve inlet. The pneumatic toy gun may further include a pressure gauge in fluid communication with the outlet of the cylinder and the valve inlet, with the pressure gauge having a cavity with a fluid disposed therein, and the cavity having a transparent portion through which the fluid is visible.

Abstract: Apparatus for storing and discharging gas includes a housing having an inlet and an outlet. A floating differential piston is mounted to reciprocate in the housing and divide the housing into a storage chamber adjacent the housing inlet and a discharge chamber adjacent the housing outlet. A check valve in the housing inlet admits gas to the storage chamber. A conduit extends through the piston from the storage chamber to the discharge chamber. A pressure relief valve in the conduit is set to maintain a higher pressure in the storage chamber than in the discharge chamber. A first sliding seal is disposed between the housing and an end of the piston adjacent the housing inlet. A second sliding seal is disposed between the housing and an end of the piston adjacent the housing outlet.

Abstract: A self-contained non-lethal munition system is provided for use with a shoulder launcher. A barrel is coupled to a breech end of the launcher and is coaxially aligned therewith. A solid sphere having a hardness in the range of approximately 50 durometer is pressure sealed in the barrel. Launch pressure is supplied aft of the sphere. The launch pressure must overcome the sphere's pressure seal with the barrel and propel the sphere with a kinetic energy of between approximately 135-220 Joules/cm2 for distances up to approximately 30 meters.

Abstract: A compact manually operated air compression device for precompressed air guns has been disclosed, wherein two operating levers, positioned on opposite sides of a cylinder, are connected to a piston rod by means of connecting links. Lightweight connection of operating levers to the cylinder provided. Configuration of the device affords adjustment position of the piston in the cylinder.

Abstract: An air gun includes an air pump with a pumping piston mounted to reciprocate within a pump cylinder, which is mounted on the barrel of the gun to pivot about an axis transverse to the longitudinal axis of the barrel so that as the pump cylinder is moved back and forth around the pivot, the cylinder and piston reciprocate relative to each other to pump air into a high pressure housing carried by the pump cylinder. A discharge conduit is also provided for releasably connecting the high pressure to the breach end of the barrel when the pump is moved toward the barrel. A firing valve in the discharge conduit releases air from the high pressure housing in to the breach end of the barrel.

Abstract: An apparatus that propels a ball pneumatically is provided with an adapter for imparting spin to the ball. In a further aspect, the apparatus can be provided with a position adjuster that cooperates with a ball exit tube of the apparatus. A further aspect is directed to a platform that allows the apparatus to be supported on a ladder-like device. A pneumatic projectile propulsion apparatus is capable of achieving high speed with a simple and practical structure.

Abstract: A ball launching device which eliminates the need for golf clubs so that disabled individuals can play golf without having to swing a golf club. The ball launching device is configured in the form of the rifle so that it can be carried by a player while the player is walking or riding a golf cart. Alternatively, the golf ball launcher can take any suitable shape in addition to that of a rifle. A preferred version of the golf ball launcher uses a piston assembly that impacts a golf ball and shoots it toward a golf green. The golf ball can be caught on the golf green by a container, or by a receptacle or net which is integrated with the flag pole on the golf green. Alternatively, the player in use the golf ball launcher until the ball reaches the green, and at that point the player can use a conventional putter while on the golf green.

Abstract: A reuseable war game device launches paint-balls or liquid colorant or both simultaneously, and can be aimed and fired while hand-held, can be concealed and aimed but remotely triggered, is easy to dismantle and repair under field conditions, is durable enough to withstand all field conditions, and is concealable, compact and easily portable. The device comprises a launch housing that includes a launch barrel joined to a rotatable muzzle assembly that is fixed on a target; a chamber housing that includes a charge chamber which receives and stores a charge; a hammer chamber that includes a retractable hammer that when released from a cocked position is thrust toward the charge chamber; a trigger that is drawn to retract the hammer to the cocked position; and, a check valve located between the launch barrel and the charge chamber that permits flow only from the charge chamber to the launch housing.

Abstract: A single stage regulator is disclosed wherein a piston-type configuration is utilized to regulate an input working pressure as high as 4,500 PSI, to an output delivery pressure from 200 PSI to 1100 PSI. The single stage regulator can be used on paintball guns, markers and similar devices powered by compressed gas.

Abstract: A vehicle launch assembly for underwater platforms includes a water tank mounted on the platform, and a plunger movably disposed in the tank and dividing the tank into first and second zones, the first zone being in communication with a. water environment in which the platform is disposed, and the second zone being in communication with a launch tube inlet line mounted on the platform. An actuator is connected to the plunger and is operable to move the plunger in the tank. A triggering device initiates operation of the actuator, moving the plunger in the tank to push water from the tank second zone to the launch tube inlet line to eject a vehicle from the launch tube, or moving the plunger to enlarge the tank second zone to draw water thereinto from a valve in communication with the water environment and the tank.

Abstract: A paint ball gun includes a gun barrel mounted on a gun handle. The gun barrel is formed with parallel propelling and recuperator chambers for respectively receiving a propelling member and a recuperating unit. A connecting rod interconnects the propelling member and a recuperator member such that the propelling member is movable together with the recuperator member. A manually operable pull unit is mounted in the propelling chamber posteriorly of the propelling member, and includes a pull rod with a front rod portion formed with an elongated slot and a rear rod portion which extends out of the propelling chamber. The connecting rod extends through and is slidable along the elongated slot. The pull unit further has a biasing spring for biasing the pull rod forward.

Abstract: An air compressed gun (10) is provided having a stock (11), a launch tube (12), a magazine (18) and a manual air pump (14). A loading tube (29) extends from the magazine to an opening (50) in the launch tube. A pressure chamber (15) is mounted within the launch tube in a stationary position relative to the stock. The pressure chamber has a release valve (16) therein and an annular seal (48) sized for sealing engagement with the launch tube. The launch tube is reciprocally moved between a loading position with the launch tube opening (50) positioned on one side of the pressure chamber seal (48) and a firing position with the launch tube opening (50) positioned on an opposite side of the pressure chamber seal (48).