公开(公告)号：US09448033B2

公开(公告)日：2016-09-20

申请号：US13939372

申请日：2013-07-11

申请人： The United States of America as represented by the Secretary of the Army

发明人： Paul T. Jackson

IPC分类号： F41B11/62 ,  F41B11/60 ,  F41B11/73

CPC分类号： F41B11/60 ,  F41A1/00 ,  F41A3/66 ,  F41A9/375 ,  F41A21/28 ,  F41B11/62 ,  F41B11/73 ,  F41C9/08 ,  F41F1/00

摘要： A projectile launcher includes a barrel, a high pressure chamber included within the barrel, and a low pressure area included within the barrel and substantially surrounding the high pressure chamber. The high pressure chamber includes an inner cavity and multiple vent holes connecting the inner cavity to the low pressure area so that high pressure gases generated in the inner cavity by a pressure cartridge can pass from the inner cavity to the low pressure area and propel a round (or projectile) out of the launcher.

摘要翻译： 射弹发射器包括枪管，包括在枪管内的高压腔，以及包括在镜筒内且基本上围绕高压腔的低压区域。 高压室包括内腔和将内腔连接到低压区域的多个通气孔，使得通过压力盒在内腔中产生的高压气体可以从内腔传递到低压区域并推进一个圆 （或射弹）出发。

公开(公告)号：US09303932B1

公开(公告)日：2016-04-05

申请号：US14534286

申请日：2014-11-06

申请人： The United States of America as Represented by the Secretary of the Army (U.S. Army)

发明人： Paul T. Jackson

IPC分类号： F41A5/18

CPC分类号： F41A5/18 ,  F41A5/24

摘要： A firearm including a barrel, a bolt, a piston, a connecting arm, a rear gas port, a rear piston area, a forward gas port having a greater diameter than the rear gas port, a forward piston area, and an ammunition cartridge including a primer, powder and a bullet; the propellant gas from the explosion of the cartridge first exerting pressure from the rear piston area to keep the bolt in a forward position after firing of the bullet; when the bullet approaching the barrel exit, the forward gas port's larger diameter in comparison to the rear gas port allowing the propellant gas pressure from the forward piston area to overpower the propellant gas pressure from the rear piston area, forcing the piston and the bolt rearward, the bolt in its rearward movement functioning to extract and eject the empty cartridge from the firearm after barrel pressure returns to near ambient.

摘要翻译： 包括枪管，螺栓，活塞，连接臂，后气体端口，后活塞区域，具有比后气体口径大的直径气体端口的枪械，前活塞区域和弹药盒，其包括 底漆，粉末和子弹; 来自盒的爆炸的推进剂气体首先从后活塞区域施加压力，以在子弹击发之后将螺栓保持在向前位置; 当子弹接近枪管出口时，前进气口与后气口相比较大的直径，允许来自前活塞区域的推进剂气体压力从后活塞区域推压推进剂气体压力，迫使活塞和螺栓向后 ，其后方的螺栓在机筒压力恢复到接近环境温度之后起作用，以从枪支中提取和弹出空盒。