Self-obturating gas-operated launcher

申请号 US3619924D 申请日 1969-09-17 公开(公告)号 US3619924A 公开(公告)日 1971-11-16
申请人 NASA; 发明人 HEINEY OTTO K;
摘要 A SELF-OBTURATING, GAS-OPERATED LAUNCHER PARTICULARLY SUITED FOR USE IN LAUNCHING PROJECTILES IN A DECONTAMINATED MEDIUM, CHARACTERIZED BY THE UTILIZATION OF AN ELONGATED BARREL INCLUDING A RIGID, BARREL-SEALING BREECH BLOCK, A MUZZLE BLOCK HAVING A BORE THROUGH WHICH A PROJECTILE IS EJECTED AND A MALLEABLE SLUG DISPOSED WITHIN THE BARREL ADJACENT TO THE BREECH BLOCK DEFINING AN EXPANDABLE FIRING CHAMBER WITHIN THE BARREL AND ADAPTED TO THE DRIVEN TOWARD THE MUZZLE BLOCK FOR LAUNCHING A PROJECTILE AS A PYROTECHNIC MATERIAL IS IGNITED WITHIN THE CHAMBER, A FEATURE OF THE LAUNCHER BEING A PLURALITY OF OPENINGS FORMED WITHIN THE MUZZLE BLOCK FOR RELIEVING BACK-PRESSURE, AND AN ANNULAR ANVIL CIRCUMSCRIBING THE BORE OF THE MUZZLE BLOCK FOR RECEIVING THE MALLEABLE SLUG IN IMPACTED ENGAGEMENT FOR THUS ACHIEVING AN HERMETIC SEALING OF THE BORE THEREBY TO RETAIN WITHIN THE BARREL THE RESIDUE OF THE IGNITED PYROTECHNIC MATERIAL.
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