A non-pyrotechnic aerial display apparatus may include a head portion and a wing portion. The head portion may include a front portion, a rear portion, and a plurality of channels extending from the front portion toward the rear portion. The wing portion may extend rearward from the head portion. The wing portion may include a top surface, a bottom surface, a leading edge, a trailing edge, a rear edge extending from the leading edge to the trailing edge, and an airfoil extending along the leading edge. The wing portion may include a counterweight. The apparatus may include one or more forward-facing lights. The apparatus may include one or more rearward-facing lights. Other examples may be described and claimed.

A hand grenade for launching BB bullets includes two half shells each including a spiral bullet storage and one half shell further including a discharge opening; a hollow, cylindrical base including a bottom recess, an air passage communicating with one bullet storage, and a valve at an end of the air passage; a steel ball on the recess to block the valve; a pressing assembly including a disc urging against the steel ball, a hollow cylinder extending upward from the disc, a magnet in the hollow cylinder, and a rod partially in the hollow cylinder to engage with the magnet; a hollow, cylindrical member threadedly secured to the cylindrical base; a cup-shaped cap threadedly secured to the cylindrical member and including two opposite projections on an inner surface and a bottom through hole with the rod passing through; and a switch including two opposite protrusions under the projections respectively.

Disclosed is a device including an exhaust valve, that operates on a pressurised working fluid. The device includes a working chamber, defined at least in part by a side wall, which working chamber can hold a workload to or toward a first end thereof, the working chamber to receive the working fluid to act on a rear surface of the workload to propel the workload to or towards a second end, opposite the first, of the working chamber. The device also includes a return chamber to receive fluid under pressure from a front surface of the workload, the pressure developed at least in part by the movement of the workload towards the second end. Present also is an exhaust valve fluidly connected to the return chamber, the exhaust valve normally biased closed preventing working fluid from exiting the working chamber, but on receipt of, and action by, the fluid under pressure from the return chamber, will open to allow the working fluid to exhaust the working chamber to a lower pressure location, the working fluid exhausting via the side wall of the working chamber through to the exhaust valve. Provided then is a device that will remove or reduce pressure building on the rear surface of the workload when moved from the second end to the first end.

A dart launcher having few but integral parts and an assembly process that is quick and easy for forming robust but inexpensive toys. The launcher may have an outer body, a safety valve and spring, a valve cap, a trigger, a piston, a launch spring, a cylinder cap and a plunger rod. The outer body includes an integral cylinder portion, a barrel portion and a trigger-mounting portion, the trigger includes an integral finger pad portion, a latch arm, a biasing portion and resilient legs. The piston includes an opening and a connector component formed around the opening to snap-fit with the piston, the cylinder cap includes an opening for the plunger rod and a connector component to connect with the cylinder portion, and the barrel portion includes a valve and mandrel support for supporting the safety valve and spring.

A throwing device includes a case assembly including a cylindrical casing; a front cap including a first through hole and a first membrane; a cylindrical member urging against the first membrane and including an axial channel; a tapered moveable element in the casing; and a projectile in the casing; and a valve including a housing filled with pressurized air; a second membrane urging against the externally threaded rear extension; a joining member urging against the moveable element and including a second through hole; a moveable member; a cup shaped member blocking the second through hole and secured to the moveable member; an internally threaded limit member secured to the moveable member; a biasing member disposed on the moveable member; and a base secured to the housing and including a third through hole. The second membrane blocks the third through hole.

A throwing device includes a case assembly including a cylindrical casing; a front cap including a first through hole and a first membrane; a cylindrical member urging against the first membrane and including an axial channel; a tapered moveable element in the casing; and a projectile in the casing; and a valve including a housing filled with pressurized air; a second membrane urging against the externally threaded rear extension; a joining member urging against the moveable element and including a second through hole; a moveable member; a cup shaped member blocking the second through hole and secured to the moveable member; an internally threaded limit member secured to the moveable member; a biasing member disposed on the moveable member; and a base secured to the housing and including a third through hole. The second membrane blocks the third through hole.

A non-pyrotechnic aerial display apparatus may include a head portion and a wing portion. The head portion may include a front portion, a rear portion, and a plurality of channels extending from the front portion toward the rear portion. The wing portion may extend rearward from the head portion. The wing portion may include a top surface, a bottom surface, a leading edge, a trailing edge, a rear edge extending from the leading edge to the trailing edge, and an airfoil extending along the leading edge. The wing portion may include a counterweight. The apparatus may include one or more forward-facing lights. The apparatus may include one or more rearward-facing lights. Other examples may be described and claimed.

A non-pyrotechnic aerial display apparatus may include a head portion and a wing portion. The head portion may include a front portion, a rear portion, and a plurality of channels extending from the front portion toward the rear portion. The wing portion may extend rearward from the head portion. The wing portion may include a top surface, a bottom surface, a leading edge, a trailing edge, a rear edge extending from the leading edge to the trailing edge, and an airfoil extending along the leading edge. The wing portion may include a counterweight. The apparatus may include one or more forward-facing lights. The apparatus may include one or more rearward-facing lights. Other examples may be described and claimed.

Invention relates to a firing system using a gas piston (7) instead of trigger spring providing firing by air released after hit of air outlet valve needle (1) in pre-charged pneumatic (PCP) rifles requiring high speed of outlet and allowing achievement of outlet speeds and firing numbers required by use of lever (3) preventing at once release of air in the tube and giving high speed during firing.

A non-pyrotechnic aerial display system may include a launcher configured to launch a non-pyrotechnic aerial display apparatus. The apparatus may include a head portion and a wing portion. The head portion may include a front portion, a rear portion, and a plurality of channels extending from the front portion toward the rear portion. The wing portion may extend rearward from the head portion. The wing portion may include a top surface, a bottom surface, a leading edge, a trailing edge, a rear edge extending from the leading edge to the trailing edge, and an airfoil extending along the leading edge. The wing portion may include a counterweight. The apparatus may include one or more forward-facing lights. The apparatus may include one or more rearward-facing lights. Other examples may be described and claimed.