Gas generator launcher for small unmanned aerial vehicles...

Details Gas generator launcher for small unmanned aerial vehicles... Gas generator launcher for small unmanned aerial vehicles...

2007-09-15

2010-06-22

Johnson, Stephen M (Department: 3641)

Ordnance

Pneumatic

Explosive charge

C102S522000

Reexamination Certificate

active

07739938

ABSTRACT:
The launching of an unmanned projectile includes pre-packaging a barrel with a projectile, a pusher cup, and a gas generator. The gas generator generates gas to propel the projectile out of the barrel. A pressure chamber increases a pressure of the gas in the barrel. The pressure chamber comprises a front body portion connected to the gas generator; an aft body portion connected to the front body portion and the gas generator; and a vent sleeve positioned around the front body portion and adapted to provide an aperture through which the gas exits the barrel in order to control a level of gas pressure in the barrel. A triggering of the gas generator causes the pusher cup to push the projectile out of the barrel at a predetermined launch velocity in order to attain a predetermined self-propelled flight trajectory, wherein the triggering causes the pusher cup to exit the barrel.

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patent: 6688032 (2004-02-01), Gonzalez et al.
patent: WO/2006/091240 (2006-08-01), None

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