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    Gun barrel choke
    36.
    发明授权
    Gun barrel choke 失效
    枪筒cho

    公开(公告)号：US4467546A

    公开(公告)日：1984-08-28

    申请号：US384990

    申请日：1982-06-04

    申请人： Pier C. Beretta

    发明人： Pier C. Beretta

    IPC分类号： F41A21/40 ,  F41C21/18

    CPC分类号： F41A21/40 ,  Y10T16/42

    摘要： A choke for a shotgun barrel comprises a sleeve body having an outer cylindrical surface and an inner surface with a conical rear section and a cylindrical front section. The conical section rearwardly widens from a mouth thereof and the sleeve body is positioned rigidly within a seat provided longitudinally in the gun barrel. The gun barrel has an inner diameter equal to the outer diameter of the sleeve body and an inclined plane surface defining a seat for receiving a bevelled extremity of the sleeve body. The inclined surface and bevelled extremity both form acute angles with the longitudinal axis of the barrel. An annular threaded projection on the outer surface of the sleeve body is threaded onto an externally threaded ferrul provided on the gun barrel.

    摘要翻译： 用于霰弹枪筒的扼流圈包括具有外圆柱形表面的套筒主体和具有圆锥形后部和圆柱形前部的内表面。 锥形部分从其口部向后变宽，并且套筒主体刚性地定位在纵向设置在枪管中的座中。 枪管的内径等于套筒本体的外径，以及限定用于容纳套筒本体的倾斜末端的座的倾斜平面。 倾斜表面和倾斜的末端都与筒的纵向轴线形成锐角。 套筒主体的外表面上的环形螺纹突出部被拧到设置在枪筒上的外螺纹的套圈上。