US 6,981,449 B2 | ||
Projectile launch assembly and method | ||
James E. Sadeck, East Freetown, Mass. (US) | ||
Assigned to The United States of America as represented by the Secretary of the Army, Washington, D.C. (US) | ||
Filed on Dec. 22, 2003, as Appl. No. 10/748,918. | ||
Prior Publication US 2005/0132629 A1, Jun. 23, 2005 | ||
Int. Cl. F42B 10/00 (2006.01) |
U.S. Cl. 102—485 | 25 Claims |
1. A projectile launch assembly comprising:
a launch tube having distal and proximal ends and an inwardly extending structure therebetween, the proximal end being adapted
to receive a muzzle of a firearm;
a receiver disposed on the distal end of the launch tube, said receiver having connector structure at a distal end thereof
for connection to a projectile;
an energy absorbing plug disposed in said launch tube and having a proximal end portion adjacent the dimple; and
an energy transfer piston disposed in said launch tube and adjacent said plug and having a proximal end configured complementarily
to said plug and having a distal end configured complementarily to a proximal end of said receiver;
wherein a bullet fired from the firearm muzzle is absorbed by said plug which is thereby moved with said piston distally in
said tube;
wherein said piston engages said receiver to propel the assembly and the projectile from the firearm muzzle; and
wherein the proximal end of said receiver is provided with a recess therein and the distal end of said piston is configured
complementarily to the recess.
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