Compressed gas pump for replica weapon
AssigneeCybergun S.A.
InventorBertrand Marsac
Life of this patent
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Abstract
The invention concerns a pump for compressed gas for a replica weapon for the projection of balls, comprising: A cylinder (7) forming a gas retention compartment (72) and provided with a cylinder head (71) forming a lateral wall of the said retention compartment, said cylinder head comprising a central orifice (73) A gas ejection nozzle (9) having a first end opening into the retention compartment (72) and a second end opening into a barrel (1) of the replica weapon, and A piston (8) provided with a piston head (81) which is movable in the retention compartment and suitable for compressing the gas in the said compartment, in which, on the one hand, the piston head is conical in shape and, on the other, the cylinder head has the shape of a funnel, complementary to the conical shape of the piston head.
Claims19
Gas pump for a replica weapon for the projection of balls, comprising:
- a cylinder forming a gas retention compartment and provided with a cylinder head, forming a lateral wall of the said retention compartment, said cylinder head comprising a central orifice
- a gas ejection nozzle having a first end opening into the retention compartment and a second end opening into a barrel of the replica weapon, and
- a piston provided with a piston head which is movable in the retention compartment and suitable for compressing the gas in the said compartment, the piston head being conical in shape and the cylinder head being in the shape of a funnel, complementary to the conical shape of the piston head, and
- wherein the cylinder head comprises means to cause turbulence in the flow of gas towards the ejection nozzle.
A gas pump for a projectile firing toy weapon comprising:
- a cylinder in gas flow communication with a barrel of the toy weapon;
- a piston used to compress gas in the cylinder that gets communicated to the barrel of the toy weapon;
- and a turbulent flow inducer disposed in the cylinder that induces turbulence in gas communicated to the barrel of the toy weapon wherein the turbulent flow inducer comprises a plurality of fins.
A gas pump for a projectile firing toy weapon comprising:
- a cylinder comprising a cylinder head having a conduit through which gas from the cylinder is flowable into a barrel of the toy weapon in which a plastic projectile is disposed;
- a piston received in the cylinder that is movable toward the cylinder head to compress gas in the cylinder that flows into the barrel of the toy weapon propelling the plastic projectile therefrom;
- a turbulent flow inducer disposed between the cylinder head and the piston that induces turbulence in gas in the cylinder entering the conduit;
- and
- wherein the piston and the cylinder head each have a conic surface with the conic surface of the piston facing toward and being complementary with the conic surface of the cylinder head.
Dependencies are inferred from the claim text.