Gas generator launcher for small unmanned aerial vehicles (UAVs)
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United States of America Patent
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Jun 22, 2010
Grant Date -
May 20, 2010
app pub date -
Sep 15, 2007
filing date -
Sep 22, 2006
priority date (Note) -
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status (Latency Note)
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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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