Disclosed herein is a pneumatic ball launcher for facilitating launching of a ball. Accordingly, the pneumatic ball launcher may include an air chamber, a fill assembly, an air blast valve, a trigger assembly, and a parabolic curved barrel. Further, the air chamber may be configured for receiving at least one gas. Further, the air chamber may be configured for storing the at least one gas at a gas pressure based on the receiving. Further, the fill assembly may be fluidly coupled with the air chamber. Further, the fill assembly facilitates transferring of the at least one gas into the air chamber. Further, the air blast valve may be fluidly coupled to the air chamber. Further, the trigger assembly may be operationally coupled with the air blast valve. Further, the parabolic curved barrel may be coupled to the air blast valve using a locking breech assembly.

Disclosed herein is a pneumatic ball launcher for facilitating launching of a ball. Accordingly, the pneumatic ball launcher may include an air chamber, a fill assembly, an air blast valve, a trigger assembly, and a parabolic curved barrel. Further, the air chamber may be configured for receiving at least one gas. Further, the air chamber may be configured for storing the at least one gas at a gas pressure based on the receiving. Further, the fill assembly may be fluidly coupled with the air chamber. Further, the fill assembly facilitates transferring of the at least one gas into the air chamber. Further, the air blast valve may be fluidly coupled to the air chamber. Further, the trigger assembly may be operationally coupled with the air blast valve. Further, the parabolic curved barrel may be coupled to the air blast valve using a locking breech assembly.

An apparatus includes an energy source and an expansion structure. The energy source is configured to convey an amount of energy operable to increase a pressure of a compressible gas disposed in a chamber. The expansion structure is configured to be placed in fluid communication with the chamber and to receive a flow of the compressible gas in response to the increase in pressure. The expansion structure includes an inlet having a first diameter and an outlet having a second diameter greater than the first diameter and is configured to allow the compressible gas to expand as the compressible gas flows from the inlet to the outlet such that a supersonic free jet of the compressible gas exits the outlet. In some instances, the supersonic free jet of the compressible gas can accelerate, relative to the expansion structure, a projectile disposed outside of the expansion structure.

An barrel (or barrel section) for a pneumatic gun can comprise a plurality of grooves and ridges arranged in parallel straight lines. The ridges may have a substantially arch-shaped cross-section with a rounded upper surface to provide minimal contact with a projectile such as a paintball being launched through the barrel. The grooves preferably provide channels to permit water and debris to be expelled from the barrel without interfering with the projectile travel. A plurality of apertures may be formed through a sidewall of the barrel along one or more of the grooves to further help expel water and debris, to impart spin to the projectile, and/or to improve a sound signature of the barrel.

A projectile module is attached to a gun component which operates as a system to launch a projectile at a flying device. The gun component is configured to be removably and electro-mechanically attached to a flying vehicle. A cylindrical gas valve is part of the gun component and has a safety component configured on an exterior surface of the cylindrical gas valve to enable the gun component only to attach to the flying vehicle when the projectile module is locked into position. A splitter component configured on the gun component adjacent to the cylindrical gas valve and has an output opening for gas flow. The projectile module is removable and includes weights attached to a projectile, wherein the weights are positioned in channels on the projectile module. The projectile is fired when gas flow is initiated from a reservoir the cylindrical gas valve and splitter component to the channels containing the weights.

A projectile module is attached to a gun component which operates as a system to launch a projectile at a flying device. The gun component is configured to be removably and electro-mechanically attached to a flying vehicle. A cylindrical gas valve is part of the gun component and has a safety component configured on an exterior surface of the cylindrical gas valve to enable the gun component only to attach to the flying vehicle when the projectile module is locked into position. A splitter component configured on the gun component adjacent to the cylindrical gas valve and has an output opening for gas flow. The projectile module is removable and includes weights attached to a projectile, wherein the weights are positioned in channels on the projectile module. The projectile is fired when gas flow is initiated from a reservoir the cylindrical gas valve and splitter component to the channels containing the weights.

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

This document describes techniques and devices capable of disabling or killing hard-bodied insects, including wasps and hornets, to two, three, or even four or more feet. In some cases, the techniques and devices use an existing pressurized-air device, such as a CO2-powered rifle or pistol, either intended for BBs or pellets, in .177, .20, .22, .25 and so forth calibers. Other pressurized-air devices can also be used, such a PCP (pre-charged pneumatic), spring, gas piston, single and multi-pump pneumatic, electric-motor-powered spring-piston, and similar pressurized-air devices.

This document describes techniques and devices capable of disabling or killing hard-bodied insects, including wasps and hornets, to two, three, or even four or more feet. In some cases, the techniques and devices use an existing pressurized-air device, such as a CO2-powered rifle or pistol, either intended for BBs or pellets, in .177, .20, .22, .25 and so forth calibers. Other pressurized-air devices can also be used, such a PCP (pre-charged pneumatic), spring, gas piston, single and multi-pump pneumatic, electric-motor-powered spring-piston, and similar pressurized-air devices.

A launch apparatus for launching a missile includes a launching tube extending in a longitudinal direction. The launching tube has an outlet opening at a first end. An acceleration device arranged in the region of a second end of the launching tube includes a gas generator to generate a gas mass flow, and a bag formed from a textile fabric. The bag is coupled to a diffuser of the gas generator via an end opening and inflates longitudinally by the gas mass flow generated by the gas generator to accelerate the missile. The bag has a gas permeability within a range of between 10 l dm.sup.2 min.sup.1 and 30 l dm.sup.2 min.sup.1. When inflated, a cross section of the bag alternatively or additionally tapers from the end opening to a minimal cross section along the longitudinal direction and increases in size to an end opposite the end opening.