Abstract: An air canister for an air cylinder including a valve is provided. The air canister includes an externally threaded head including an axial chamber and a first sealing ring put on a first groove; an internally threaded cap secured to the head; a spring biased sliding rod including an internal first passage, an internal second passage being blocked from the first passage and extending out of the head and the cap, a first port having a first end communicating with the first passage, and a second port having a first end communicating with the second passage; an externally threaded sleeve secured to both the head and the cap and including a second sealing ring put on an internal second groove, a third sealing ring put on an internal third groove, and a fourth sealing ring put on a fourth groove; and a C-ring clamped onto the sliding rod.

Abstract: A net throwing device for use in combination with a compressed air powered launching device is provided with a pod including an axial space, tubes disposed around the axial space, and a slot formed on an edge; a net disposed in the axial space; weights each disposed in one of the tubes; and a casing including a forward oriented projection on an edge of a front end, the projection being fitted in the slot to secure the casing and the pod together, and a protrusion adjacent to the forward oriented projection. At least one of the tubes is inclined with respect to an axis of the axial space. At least one of the tubes is parallel to the axis of the axial space.

Abstract: A powered dispenser includes a case including a central hole and a hopper in a channel for receiving spherical particles; a support disc including two opposite arc openings, an arc flange, a projection on the arc flange, and a first bossed hole; a rotatable disk including a second bossed hole put on the first bossed hole, two opposite pegs disposed through the openings, a curved slot between an edge of the rotatable disk and the second bossed hole with the projection moveably disposed therein, and striking members; a biasing member in a space defined between the flange and the edge of the rotatable disk; a cap including a hollow peg member in the first bossed hole; a spring biased retaining ring urging against the hole, and the retaining ring including two opposite sloped cuts with the pegs slidably disposed therein; a rotatable shaft; and a trigger switch.

Abstract: A containing device includes a container; a compressed gas source in the container and including a sealed opening; a channel member having a first end releasably secured to a first end of the container and including through holes; a hollow closure member releasably secured to a second end of the container; a hollow striker including a projection and a hollow needle spaced from the opening; and two opposite apertures through a periphery of the projection; a cap releasably secured to a second end of the channel member; a biasing member biased between the cap and an internal space of the striker; and a pull ring inserted through the through holes and the apertures to hold the striker in place in a locked position. A pulling of the pull ring out of the channel member can trigger a release of high-pressure gas.

Abstract: A quick release assembly is provided with a plate member including two bent end loops; an inner plate including a longitudinal channel, a lateral receptacle communicating with the longitudinal channel, and a through hole; a shuttle in the longitudinal channel, an upper tunnel on an edge, a lower tunnel, a lug in the through hole, a slot through the lug, an upper narrow hole in the slot, and a lower circular hole in the slot; a first spring actuated detent in the lateral receptacle and having one end urging against either the upper tunnel or the lower tunnel; an outer plate including a longitudinal recess, and a hole member through the longitudinal recess; a lock mechanism partially disposed in the longitudinal recess and including a lever and a concave part; and a second spring actuated detent in the through hole, the slot, the hole member, and the concave part.

Abstract: An adapter is provided with a rail having one end secured to a gunstock; a groove structure including a bottom groove, a forward socket, a transverse channel through the socket, a pin hole through the channel, and a bottom limit member; a lever pivotably secured to the groove structure; and a sliding member in both the channel and the socket and including a projection at one end, a shoulder adjacent to the projection, a receptacle at an other end, a spring in the receptacle, and a slot perpendicular to the receptacle and communicating therewith. The pin is through the pin hole and the slot to anchor the spring between the pin and the receptacle. In a locked state, the shoulder is in the socket to lock the rail in the groove, the other end of the sliding member is projected, and the projection is retracted into the channel.

Abstract: A short-range life saving device is provided. After removing a safety pin and throwing a housing, a wound portion of a line unwinds, a spring loaded sliding disc pushes down a first needle until being stopped, the first needle punctures an auxiliary air canister to release compressed air, the compressed air enters a receptacle, the compressed air flows out of the receptacle into a first portion of a second cylinder via an axial hole, a second needle is pushed down when the pressure reaches a predetermined value, the second needle punctures a main air canister to release compressed air prior to entering a second portion of the second cylinder, the compressed air flows out of the second portion of the second cylinder into the first cylinder, the compressed air flows into a lifebuoy for inflation via a tube, and the inflated lifebuoy separates the housing into two halves.

Abstract: A net throwing device for use in combination with a compressed air powered launching device is provided with a pod including an axial space, tubes disposed around the axial space, and a slot formed on an edge; a net disposed in the axial space; weights each disposed in one of the tubes; and a casing including a forward oriented projection on an edge of a front end, the projection being fitted in the slot to secure the casing and the pod together, and a protrusion adjacent to the forward oriented projection. At least one of the tubes is inclined with respect to an axis of the axial space. At least one of the tubes is parallel to the axis of the axial space.

Abstract: An adapter is provided with a rail having one end secured to a gunstock; a groove structure including a bottom groove, a forward socket, a transverse channel through the socket, a pin hole through the channel, and a bottom limit member; a lever pivotably secured to the groove structure; and a sliding member in both the channel and the socket and including a projection at one end, a shoulder adjacent to the projection, a receptacle at an other end, a spring in the receptacle, and a slot perpendicular to the receptacle and communicating therewith. The pin is through the pin hole and the slot to anchor the spring between the pin and the receptacle. In a locked state, the shoulder is in the socket to lock the rail in the groove, the other end of the sliding member is projected, and the projection is retracted into the channel.

Abstract: A quick release assembly is provided with a plate member including two bent end loops; an inner plate including a longitudinal channel, a lateral receptacle communicating with the longitudinal channel, and a through hole; a shuttle in the longitudinal channel, an upper tunnel on an edge, a lower tunnel, a lug in the through hole, a slot through the lug, an upper narrow hole in the slot, and a lower circular hole in the slot; a first spring actuated detent in the lateral receptacle and having one end urging against either the upper tunnel or the lower tunnel; an outer plate including a longitudinal recess, and a hole member through the longitudinal recess; a lock mechanism partially disposed in the longitudinal recess and including a lever and a concave part; and a second spring actuated detent in the through hole, the slot, the hole member, and the concave part.

Abstract: A magazine for an air gun is provided with first and second shells; an internal passage; a rotatable shaft including a lengthwise groove on a surface, and a transverse slot on the surface communicating with the groove; a pulley rotatably put on the shaft and having both ends rotatably secured to the first and second shells respectively; a ratchet mechanism mounted on the pulley; a pin inserted into the pulley to dispose in one end of the groove; a line having one end wound on the pulley, the line extending through the passage to have an other end engaged with a projectile support in the passage; a spring put on the line and biased between the pulley and the projectile support; and a spring biased knob disposed on an outer surface of the first shell and secured to the shaft.

Abstract: A line launching device is provided with a tube for receiving a projectile and including an externally threaded bottom and a cap put on the tube; a cylinder including a first externally threaded extension at one end, an internally threaded cup secured to the first externally threaded extension, a second externally threaded extension at an other end, and an internally threaded ring securing to both the second externally threaded extension and the externally threaded bottom; a hollow anchor fastened in one end of the tube; a hollow fin assembly in a bottom of the projectile and including slits on a housing, pivotal fins, and an internal biasing member biasing against the fins; and a rope having one end attached to the nose and an other end fastened in the anchor. The fins project out of the slits after the projectile being propelled out of the tube by pressurized gas.

Abstract: An air canister for an air cylinder including a valve is provided. The air canister includes an externally threaded head including an axial chamber and a first sealing ring put on a first groove; an internally threaded cap secured to the head; a spring biased sliding rod including an internal first passage, an internal second passage being blocked from the first passage and extending out of the head and the cap, a first port having a first end communicating with the first passage, and a second port having a first end communicating with the second passage; an externally threaded sleeve secured to both the head and the cap and including a second sealing ring put on an internal second groove, a third sealing ring put on an internal third groove, and a fourth sealing ring put on a fourth groove; and a C-ring clamped onto the sliding rod.

Abstract: A magazine for an air gun is provided with first and second shells; an internal passage; a rotatable shaft including a lengthwise groove on a surface, and a transverse slot on the surface communicating with the groove; a pulley rotatably put on the shaft and having both ends rotatably secured to the first and second shells respectively; a ratchet mechanism mounted on the pulley; a pin inserted into the pulley to dispose in one end of the groove; a line having one end wound on the pulley, the line extending through the passage to have an other end engaged with a projectile support in the passage; a spring put on the line and biased between the pulley and the projectile support; and a spring biased knob disposed on an outer surface of the first shell and secured to the shaft.

Abstract: A compressed air powered long-range life saving device is provided. Compressed air in an air canister flows to project a tube, a rope within the tube extends to unfasten a safety pin, a sliding disc pushes down a first needle until stopped, the first needle punctures an auxiliary air canister to release compressed air, the compressed air enters a receptacle, the compressed air flows out of the receptacle into a first portion of a second cylinder, the second needle is pushed down when the pressure reaches a preset value, the second needle punctures a main air canister to release compressed air prior to entering a second portion of the second cylinder, the compressed air flows out of the second portion into the first cylinder, the compressed air flows into the a lifebuoy for inflation, the inflated lifebuoy separates a housing into two pieces, and the rope unwinds.

Abstract: A stun grenade is provided with a housing; al receptacle including a bottom hole and a hollow externally threaded member; an air canister in the receptacle; an internally threaded cap including a top opening and a top bifurcation including two opposite through holes in an intermediate portion, and two opposite first pivot holes in a rear portion; a striker unit including a striker and a spring loaded hinge pivotably fastened between the first pivot holes; a needle inserted through the hollow externally threaded member to have one end engaged with the air canister and an other end projecting out of the top opening; a lever having a front end pivotably secured to a front end of the bifurcation and including two opposite second pivot holes at an intermediate portion; and a safety pin inserted through the second pivot holes and the through holes to anchor the needle below.

Abstract: A rope projection device for capturing an object is provided with a head assembly including an open central chamber and two open inclined cylinders spaced from both sides of the central chamber respectively; a capturing rope including a rope member in the central chamber, and two end weights in the inclined cylinders respectively; and a projection assembly including a housing including a recess having a first through hole, and a cap on the recess and having a second through hole; a sleeve in the housing; a diaphragm on a front end of the sleeve; an air canister in the sleeve; and a mechanism including a spring biased cylindrical member in the sleeve, a receptacle on the cylindrical member, a spring biased sliding member projecting out of the receptacle into a third through hole on the sleeve to be under the first through hole, and a rear sharp member.

Abstract: A pneumatic controller for a compressed-air gun has a shell, a hollow cylinder inside which defines a first space extending along the axis thereof, having a first through hole and a second through hole extend through a wall of the shell at two opposed positions; a guiding structure, a hollow cylinder defining a second space being coaxial with the shell therein having a first annular recess formed a plurality of first orifices and a second annular recess formed a plurality of second orifices which correspond to the first through hole and the second through hole respectively; and a column contained and restricted in the second space of the guiding structure for choosing whether first orifices of the first guiding component connect the second orifices of the second guiding component by the second space.

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.