2219results about "Compressed gas guns" patented technology

A ball-throwing machine includes a camera connected to a computer vision unit and a microphone connected to a speech-processing unit. The computer vision unit processes images from the camera to determine a user's position, and to detect user gestures from a predetermined repertoire of gestures. The speech-processing unit recognizes user vocal commands from a predetermined repertoire of commands. A computer receives information from a control panel, from the computer vision unit, from the speech-processing unit, and from a file describing the ballistic properties of the ball to be thrown. The computer accordingly determines a ball trajectory according to the user's position and parameters indicated by a combination of control-panel settings, user gestures, and user vocal commands. The computer then adjusts the direction, elevation, ball speed, and ball spin to conform to the determined trajectory, and initiates throwing of a ball accordingly.

A crossbow having an improved firing assembly. The improved assembly attaches to a bowstring at a single point and draws the string back to have the string retained between a first string retainer and a second string retainer. By allowing the string to be drawn utilizing a single contact point on the bowstring as opposed to the prior art methods of dual engagement points with the bowstring, the cost, maintenance and undesired variance in string retention associated with the prior art are substantially eliminated.

The present invention relates to compressed gas-operated firearms and more particularly to repeating gas cylinder pistols with conveyer feed of bullets for shooting. The pistol comprises a hollow pistol frame (1) made integral with a grip (3) and a trigger bow (50), a movable barrel (6) with a bullet bore (97), a load (12) and a mainspring (19) disposed on the barrel (6), a valve (57) installed in a gas chamber (110) inside a body (56), a gas cylinder (102) installed inside a rear hollow interior (104) of the grip (3), a magazine (27) installed in a front hollow interior (151) of the grip (3), separated from a rear hollow interior (104) by a partition (150), a striker-and-trigger mechanism installed inside the pistol frame (1) and on the trigger bow (50) and interacting with the movable barrel (6) and the magazine (27) for supplying bullets (246) and portions of gas from the gas cylinder (102) to the bullet bore (97) of the barrel (6), a mechanism for installing the gas cylinder (102), disposed below the gas cylinder (102) in the grip (3). In a hollow interior (4) of the pistol grip (1) a support (5) is installed, which serves as a base for the movable barrel (6) that moves along the support (5) under the action of the striker-and-trigger mechanism.

A spring-loaded feed mechanism for a paintball loader. The feed mechanism includes an inner spool and an outer spool. A torsion spring is positioned between the inner and outer spools. The outer spool includes a pressure wall, from which the torsion spring is located on one end of the spring. A retaining wall is attached to the inner spool and is located at the opposite end of the torsion spring. When an operator of a paintball gun using the spring-loaded feed mechanism discontinues firing paintballs, the feed mechanism is stopped. Simultaneously, during the deceleration of the feed mechanism, the torsion spring is compressed, which allows the mechanical energy of the rotating feed mechanism to be stored within the compressed spring. When the operator desires to fire the paintball gun, the feed mechanism is accelerated to the requisite rotational speed. The compressed spring is release, thereby allowing the spring to assist in accelerating the feed mechanism to the necessary rotational speed.

An inverted compound archery bow including an extended-capacity cam system having two cams, each cam engaging the bowstring and separate cables extending to limbs of the bow. The bowstring and cables are counter-wound on the cams, producing tension opposite and proportional to the inverse ratio of windings. Drawing the bowstring winds the cables onto the cams, producing limb tension that propels an arrow when the bowstring is released. An arrow rest located between full-draw and rest excursions of the bowstring accommodates the extended draw length of the bow. A bowstring arrestor engages the bowstring at an intermediate-draw position. A slide stabilizes and supports a rear portion of the bow, and a receptacle on the slide engages an adapter for a bowstring release mechanism.

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.

A crossbow includes a trigger mechanism having a trigger housing for receiving a bowstring of a crossbow and a bowstring catch mounted with respect to the housing and adapted to releasably engage a crossbow bowstring brought within the trigger housing. The crossbow further includes a trigger adapted to releasably engage the bowstring catch, the trigger being further adapted to be selectively actuated by a user so as to cause the trigger to release the bowstring catch, thereby causing the bowstring catch to release a crossbow bowstring. Optionally, the crossbow may include a ball disposed between the bowstring catch and the trigger, the ball being adapted to bear and react to forces arising between the bowstring catch and the trigger during at least one of the trigger so engaging the bowstring catch and the trigger so releasing the bowstring catch.

A trigger assembly has a housing, a trigger, a string holder, a bowstring catch biasing member, a safety pin, a safety lock, a pushing arm, a block, a block biasing member and a string stop. The housing has a mouth. The trigger has a trigger element and an actuating lever combined with the trigger element by dovetailed recess and protrusion. The bowstring catch has a string hook and a leg selectively engaging the hook on the actuating lever. The safety pin is moveably mounted in the housing and is supported on the actuating lever. The safety lock is moveably mounted in the housing and has a push rod. The pushing arm has a protrusion abutting the push rod. The block has a transverse rod selectively engaging the front end of the pushing arm. Accordingly, a trigger assembly with two safety features is provided.

A crossbow includes an elongated frame coupled to a riser at a first end thereof. The riser supports a pair of flexible limbs, and a bowstring extends between such limbs. A movable bowstring release is used both to retract the bowstring into a drawn position, and to release the bowstring under the operation of a trigger assembly. The bowstring release is initially positioned near the bowstring at rest, and a bowstring hook is engaged therewith. A bowstring retractor includes a retractor rope secured to the bowstring release for retracting the bowstring. An upper housing is secured to the second end of the elongated frame, and supports a rope spool used to wind the retractor rope. The bowstring release is retracted into the upper housing proximate a trigger assembly for selectively releasing the bowstring when a user pulls a trigger.