Projectile launching device
AssigneeDan's Cannons Limited
InventorDaniel Bridgwater
Life of this patent
Estimating the term…
Abstract
The invention relates to a projectile launching device (10). The invention also relates to a method of using a projectile launching device (10).
Claims20
A projectile launching device comprising a flexible air bag and a movable mass, part of the flexible air bag is fixed to a part of the projectile launching device, part of the flexible air bag is coupled to the movable mass by a coupling, wherein the movable mass is designed to fall under gravity towards the flexible air bag, the movable mass can be lifted away from the flexible air bag to exert a force via the coupling onto part of the flexible air bag, to open the flexible air bag and inflate the flexible air bag with atmospheric air, and the movable mass can be dropped towards the flexible air bag to force air out of an opening in the flexible air bag, so as to project an object from the projectile launching device.
A projectile launching device comprising:
- a flexible air bag and a movable mass,
- a tube for an object to be projected, the tube having a first diameter;
- a projectile of circular cross section, the projectile having a second diameter, where the second diameter is less than the first diameter of the tube, so the projectile closely fits in the tube;
- the flexible air bag comprising an opening in air flowing communication with the interior of the tube;
- where part of the flexible air bag is fixed to a part of the projectile launching device, part of the flexible air bag is coupled to the movable mass by a coupling,
- wherein the movable mass is designed to fall under gravity towards the flexible air bag, the movable mass can be lifted away from the flexible air bag to exert a force via the coupling onto part of the flexible air bag, to open the flexible air bag and inflate the flexible air bag with atmospheric air, and the movable mass can be dropped towards the flexible air bag to force air out of an opening in the flexible air bag, so as to project the projectile from the projectile launching device.
Dependencies are inferred from the claim text.