公开(公告)号：US5305678A

公开(公告)日：1994-04-26

申请号：US978784

申请日：1992-11-19

申请人： Robert Talbot ,  Edward C. Arventos ,  Seth K. Wesson

发明人： Robert Talbot ,  Edward C. Arventos ,  Seth K. Wesson

IPC分类号： F41A21/36 ,  F41C27/04 ,  F41A21/34

CPC分类号： F41A21/36

摘要： A compensated barrel shroud that encloses and supports a firearm barrel provides a first portion of the shroud for receiving the barrel that extends from the firearm frame to an end of the barrel. There is a second larger inner diameter portion extending from the end of the barrel to a forwardmost outer end of the shroud. The barrel and shroud are screwed together by interengaging threads positioned adjacent the end of the barrel. The end of the shroud has a decreased diameter exit hole defining an expansion chamber within the second larger inner diameter portion. At least one slot is formed along a top surface of the second portion to allow expanding propellant gas from within the second portion to escape. The slot is sized and arranged to provide a downward thrust to the barrel shroud to compensate recoil forces generated in firing a round.

摘要翻译： 围绕并支撑火器筒的补偿桶护罩提供护罩的第一部分，用于接收从枪支框架延伸到枪管的端部的枪管。 存在从筒的端部延伸到护罩的最前端的第二较大内径部分。 桶和护罩通过与枪管的端部相邻定位的相互接合的螺纹拧紧在一起。 护罩的端部具有减小的直径出口孔，在第二较大内径部分内限定膨胀室。 沿着第二部分的顶表面形成至少一个槽，以允许从第二部分内扩展推进剂气体以逸出。 狭槽的尺寸和布置以向筒罩提供向下的推力，以补偿在发射一圈时产生的反冲力。