There is provided a system for hydrodynamic and/or air levitation of an object, such as a ball by a stream of water, and a striking object for hitting the object, and a method of play comprising the system.

There is provided a system for hydrodynamic and/or air levitation of an object, such as a ball by a stream of water, and a striking object for hitting the object, and a method of play comprising the system.

A device (100) for firing a projectile at a target body, in particular a fluid projectile or solid projectile, comprises a hand-held unit (100) for firing the projectile, the hand-held unit (100) comprises a propulsion drive (114) for accelerating the projectile and a distance measuring device (112) for measuring a distance between the hand-held unit (100) and the target body. The device (100) also comprises an energy store (120) for operating the propulsion drive (114), the propulsion drive (114) comprising a control unit (115), whereby the propulsion (114) is controllable in dependence on the distance measured.

The invention relates to a water gun, in particular to a toy water gun comprising a supply line, which is adapted to supply a pressurized liquid from a source, a nozzle arrangement for ejecting the liquid to the environment as well as a valve for controlling a flow of the liquid in a direction from the supply line to the nozzle arrangement. The water gun additionally includes a flow-smoothing device, with the valve arranged behind the flow-smoothing device with respect to the flow direction.

An apparatus for rendering safe unexploded military ordnance items found on land by use of a portable apparatus employing entrainment waterjet technology. The portable apparatus includes a tool package containing a plurality of tools designed for accessing the interior of a unexploded ordnance item. The interior of the ordnance item is accessed, and its internal contents, which it typically an energetic material is washed-out and recovered.

A system for rendering safe unexploded military ordnance items found underwater by use of immersible portable apparatus employing entrainment waterjet technology. The interior of the military ordnance item is accessed, and its internal contents are washed out and recovered. All services required to run the underwater apparatus are located above water.

Described is a spitball gun that is operable for collecting, wetting, and projecting paper ammunitions. The spitball gun includes a paper advancing chamber having an opening for receiving paper ammunition and an advancing mechanism for advancing paper through the paper advancing chamber to a loading chamber. A water tank is also connected with the loading chamber. A sliding handle is used to cause paper to be pulled through the paper advancing mechanism while water is released onto the paper from the water tank. A paper cutter is used to cut the paper and load the paper into the loading chamber. Finally, air from an attached air tank is used to expel a wetted paper wad from the loading chamber and through the barrel of the spitball gun.

Described is a spitball gun that is operable for collecting, wetting, and projecting paper ammunitions. The spitball gun includes a paper advancing chamber having an opening for receiving paper ammunition and an advancing mechanism for advancing paper through the paper advancing chamber to a loading chamber. A water tank is also connected with the loading chamber. A sliding handle is used to cause paper to be pulled through the paper advancing mechanism while water is released onto the paper from the water tank. A paper cutter is used to cut the paper and load the paper into the loading chamber. Finally, air from an attached air tank is used to expel a wetted paper wad from the loading chamber and through the barrel of the spitball gun.

The present invention relates to a non-lethal system for readily deploying a non-lethal weapon measure including a hand held firearm including a frame, and a slide, a dispersing container accommodated by the hand held firearm, at least one agent situated in the dispersing container, an actuator attached to or integrally formed with the hand held firearm, and wherein the dispersing container is responsive to the actuator being activated.

A toy water gun for water streaming and spraying comprising a piston type water gun, a nozzle, an adjustment sleeve and a position adjustment mechanism. The water gun comprises a cylinder, a piston fitted in a cavity of the cylinder, a pump rod connected to the piston, a handle disposed on the pump rod, and a water duct mounted on and communicating with the cylinder. The nozzle is mounted on the water duct, rear and front ends of the nozzle are disposed with a water inlet and a water outlet respectively, and the water inlet communicates with the water duct. The adjustment sleeve is sleeved on the nozzle, an inner side wall of the adjustment sleeve makes sealing contact with an outer side wall of the nozzle, the adjustment sleeve is disposed with a sealing plate having a water jet hole located right in front of the water outlet.