公开(公告)号：US4126955A

公开(公告)日：1978-11-28

申请号：US778416

申请日：1977-03-17

Applicant: George G. Coffield, Jr. ,  Dennis L. Beug

Inventor： George G. Coffield, Jr. ,  Dennis L. Beug

IPC: F41A21/16 ,  F42B14/06 ,  F41C21/00

CPC classification number: F42B14/064 ,  F41A21/16 ,  F42B14/068

Abstract: A high velocity gun and ammunition wherein the projectile is encased in a formable material which is squeezed in the tapered bore of the gun to more efficiently utilize expansion gases for accelerating the projectile.

Abstract translation: 高速枪和弹药，其中弹丸被包裹在可变形材料中，该可变形材料被挤压在枪的锥形孔中，以更有效地利用膨胀气体来加速射弹。

公开(公告)号：US4008538A

公开(公告)日：1977-02-22

申请号：US558467

申请日：1975-03-14

Applicant: Warren A. Center

Inventor： Warren A. Center

IPC: F41A21/28 ,  F41A21/40 ,  F41C21/00

CPC classification number: F41A21/28 ,  F41A21/40

Abstract: This invention has to do with a gun and, more particularly, to a firearm having a rifled barrel which can be used effectively with shotgun shells.

Abstract translation: 本发明涉及一种枪，更具体地说涉及一种能够有效地用于猎枪炮弹的枪管的枪械。

公开(公告)号：US3863376A

公开(公告)日：1975-02-04

申请号：US37084473

申请日：1973-06-18

Applicant: DALMASO RENO

Inventor： DALMASO RENO

IPC: F41A23/00 ,  F41C21/00

CPC classification number: F41A23/00

Abstract: A portable, foldable rifle or gun support having a rear riflesupporting yoke formed by the upper outturned ends of a pair of intermediate, ground-engaging legs; a forward rifle-supporting yoke similarly formed on a pair of forward legs pivotally supported on the intermediate legs adjacent the ground; and a rearwardly extending leg pivotally connected to the intermediate legs to vary the angle of the rifle supported by the yokes, the elevation of the yokes being slightly variable by the angle between the intermediate and front legs.

Abstract translation: 一种便携式，可折叠的步枪或枪支架，其具有由一对中间地面接合腿部的上部翻转端部形成的后支撑轭架; 类似地形成在一对前腿上的前步枪支撑轭，其枢转地支撑在邻近地面的中间腿上; 以及向后延伸的腿部，其枢转地连接到中间腿部，以改变由轭架支撑的步枪的角度，轭架的仰角由中间和前腿之间的角度稍微变化。

公开(公告)号：US3849925A

公开(公告)日：1974-11-26

申请号：US36209773

申请日：1973-05-21

Applicant: MAYER K

Inventor： MAYER K

IPC: F41A21/48 ,  F41C21/00

CPC classification number: F41A21/482

Abstract: In order to use different caliber shells or cartridges in a gun, especially a rifle, the barrel is exchangeable against another barrel of different caliber by means of an intermediate coupling member in the form of a hollow cylinder, one end of which is provided with means for locking the barrel end to the coupling member and the other end of which is provided with means for removably securing the coupling member in the housing of the breech mechanism.

Abstract translation: 为了在枪，特别是步枪中使用不同口径的外壳或药筒，枪管可以通过中空联动构件与另一个不同口径的枪管交换，中间联接构件为中空圆柱体，其一端设有装置 用于将筒端锁定到联接构件，并且其另一端设置有用于将联接构件可移除地固定在后膛机构的壳体中的装置。

公开(公告)号：US3834053A

公开(公告)日：1974-09-10

申请号：US35477373

申请日：1973-04-26

Applicant: SAUER & SOHN GMBH J

Inventor： BIELFELDT H ,  DIEHL C ,  BIELFELDT K ,  BIELFELDT G

IPC: F41A21/48 ,  F41C21/00

CPC classification number: F41A21/487 ,  F41A21/482

Abstract: A firearm includes a slit receiver socket for detachably receiving a barrel, and a spacer element disposed between the rear of the barrel and the end of the socket to define the rearmost position of the barrel. The spacer element may include a plurality of discs which are adhered together. Discs may be added to or removed from the spacer element to adjust the size thereof.

Abstract translation: 枪支包括用于可拆卸地容纳枪管的狭缝接收器插座和设置在枪管的后部和插座的端部之间的间隔元件，以限定枪管的最后位置。 间隔元件可以包括粘附在一起的多个盘。 盘可以被添加到间隔元件或从间隔元件移除以调整其尺寸。

公开(公告)号：US3797155A

公开(公告)日：1974-03-19

申请号：US3797155D

申请日：1972-11-22

Applicant: TRIPLE S DEV CO INC

Inventor： SMITH J ,  KOCIS T

IPC: F41A21/42 ,  F41C21/00

CPC classification number: F41A21/42

Abstract: An automatic shotgun choke characterized in the provision of a choke member adapted to be secured to the muzzle end of a shotgun barrel; a recoil and spring actuated choke operating sleeve around said choke member; and a gas pressure actuated latch on said choke sleeve engaged in a first recess in the choke member which retains said sleeve and choke member with the latter in open bore condition until after the initial shot is fired, at which time, the latch is actuated by the gas pressure of the initial shot to automatically release the sleeve and choke member for relative spring and recoil actuation to full choke position. In the full choke position, the latch engages a second recess in the choke member so that the second and succeeding shots will be fired under full choke conditions. Whenever desired, the latch may be disengaged from the second (full choke) recess and the choke sleeve moved against spring pressure to open bore position at which it is latched and exposed to gas pressure when the next shot is fired. The automatic shotgun choke herein is further characterized in that the choke sleeve may, upon disengagement of the latch from the first (open bore) recess, be rotated to open bore position and whereat the latch engages a third recess in the choke member but is not exposed to gas pressure and hence the choke assembly will remain in open bore position for any number of shots until such time that the choke sleeve is manually shifted to automatic choke position with the latch engaged in the first (open choke) recess.

Abstract translation: 一种自动霰弹枪扼流圈，其特征在于提供一个适于固定在枪管枪口的枪口端的阻风构件; 围绕所述阻风构件的反冲和弹簧致动的扼流圈操作套筒; 并且所述扼流套上的气体压力致动的闩锁接合在所述阻风构件中的第一凹部中，所述阻塞构件将所述套筒和阻塞构件保持在开口状态，直到初始射击被触发，此时闩锁由 初始喷射的气体压力自动释放套筒和阻塞构件用于相对弹簧和反冲致动到完全阻塞位置。 在完全阻塞位置，闩锁与阻塞构件中的第二凹部接合，使得第二次和后续的镜头将在完全阻塞条件下被点燃。 无论何时需要，闩锁可以与第二（全扼流圈）凹部脱离，并且阻塞套筒在弹起压力下移动到打开孔位置，在下一个射击被触发时，闩锁被锁定并暴露于气体压力。 这里的自动霰弹枪扼流器的特征还在于，当掣子与第一（开孔）凹部脱离时，扼流套筒可以旋转到开口位置，并且其中闩锁接合扼流圈构件中的第三凹部，但不是 暴露于气体压力，因此扼流器组件将保持在开口位置以进行任何数量的照射，直到阻塞套管手动地移动到自动阻塞位置，同时闩锁接合在第一（开路扼流圈）凹部中。

公开(公告)号：US3777385A

公开(公告)日：1973-12-11

申请号：US3777385D

申请日：1972-10-02

Applicant: HAGAN E

Inventor： HAGAN E

IPC: F41A21/18 ,  F41C21/00 ,  F41C21/02

CPC classification number: F41A21/18

Abstract: A firearm, including a barrel having a plurality of spherical bearings contacting a projectile discharged therethrough, is disclosed. Each of a plurality of sets of centrally apertured discs retains a plurality of rotatable spherical bearings. A part of each bearing within a set of discs extends into the centrally disposed aperture. The sets of discs are mounted adjacent one another within a sleeve to form a barrel for a firearm. The bore of the firearm is defined by the innermost extensions of the spherical bearings within a set of discs. A key way within each of the discs with a helically formed key extending adjacent the inner surface of the sleeve to angularly position each of the discs about its longitudinal axis. The spherical bearings of the positioned discs thereby define a number of helixes within the bore of the barrel, where the number of helixes corresponds to the number of spheres retained by a set of discs.

Abstract translation: 公开了一种枪械，其包括具有接触通过其排出的射弹的多个球面轴承的枪管。 多组中心多孔盘中的每一个都保持多个可旋转的球面轴承。 一组光盘内的每个轴承的一部分延伸到中心设置的孔中。 这些盘组彼此相邻地安装在套筒内以形成用于枪支的枪管。 枪支的孔由一组盘中的球面轴承的最内侧延伸限定。 每个碟片内的一个关键方式是具有螺旋形成的钥匙，该钥匙在套筒的内表面附近延伸，以使其围绕其纵向轴线成角度地定位。 定位的盘的球形轴承由此在筒体的孔内限定了许多螺旋，其中螺旋线的数量对应于一组盘保持的球体的数量。

公开(公告)号：US3714727A

公开(公告)日：1973-02-06

申请号：US3714727D

申请日：1970-08-25

Applicant: SKB ARMS CO

Inventor： IINO H

IPC: F41A21/40 ,  F41C21/00

CPC classification number: F41A21/40

Abstract: A gun barrel which comprises a relatively large-diametered portion formed integrally with a barrel body in the forward end thereof and adapted to incorporate an exchangeable choke inside the muzzle of said relatively large-diametered portion, said relatively large-diametered portion being formed coaxially with the gun barrel body ; a means for securely holding said choke therein; and/or gas vents formed in the substantially upper part of said relatively large-diametered portion to release gas jets therefrom, thereby preventing an undesirable bounce of the gun barrel at firing. In the gun barrel of the present invention, the total length of the barrel can always be constant and the replacement of chokes is easily made without causing a change in the balance of said barrel. Moreover, an undesirable bounce of the gun barrel is effectively prevented by forming the gas vents in only the upper part of the barrel.

Abstract translation: 一种枪筒，其包括在其前端与筒体一体形成的相对大的直径部分，并且适于在所述相对大直径部分的枪口内并入可更换的扼流圈，所述相对大的直径部分与 枪管体; 用于将所述扼流器牢固地保持在其中的装置; 和/或形成在所述相对大直径部分的大致上部中的气体排放口以从其中释放气体射流，从而防止枪管在燃烧时不期望的反弹。

公开(公告)号：US3685194A

公开(公告)日：1972-08-22

申请号：US3685194D

申请日：1969-08-29

Applicant: COON JOHN M

Inventor： COON JOHN M

IPC: F41C23/10 ,  F41C23/12 ,  F41C21/00 ,  F41C23/00

CPC classification number: F41C23/12 ,  F41C23/10

Abstract: An assembly for converting a handgun to a rifle wherein an elongated rifle barrel having locking means thereon which is identical to the locking means on the handgun barrel is substituted within the handgun in place of the conventional short handgun barrel. The handgrip cover plates are removed from the handgun and the handgun with the rifle barrel inserted therein is placed between a pair of handgrip engaging plates which form a portion of a rifle stock. The handgrip cover plates are placed on the outer faces of the handgrip engaging plates and a pair of securing members are inserted through aligned apertures in the handgrip cover plates, the handgrip engaging plates and the handgrip to secure the handgun within the rifle stock. A handrest stock member extends forwardly of the handgrip engaging plates and is secured to one of the plates by means of a connecting member having a cutout portion which permits access to the trigger when in the assembled condition. A rod-like member extends rearwardly of and is secured to a U-shaped connecting member which is formed integrally with the handgrip engaging plates. A shoulder plate is secured to the terminal end of the rod-like member.

公开(公告)号：US3643364A

公开(公告)日：1972-02-22

申请号：US3643364D

申请日：1969-11-07

Applicant: KOCH THEODOR

Inventor： KOCH THEODOR

IPC: F41A21/18 ,  F41C21/00

CPC classification number: F41A21/18

Abstract: A rifled barrel intended for use with small arms, particularly in combination with steel-jacketed soft-core ammunition having no special rotating bands provided on the exterior thereof, which barrel has a cross-sectional configuration such that the interior surface of the barrel defines a regular polygon with rounded sides and corners, which corners form the rifling in the barrel wall and represent arc segments spaced uniformly about the interior surface and having a common radius of curvature, the rounded sides of the polygon extending between the rounded corners and representing arc segments having a common radius of curvature of lesser magnitude than the first-mentioned radius of curvature, the transitional regions between adjacent arc segments having different radii of curvature being continuous.

Abstract translation: 一个旨在与小武器一起使用的膛条，特别是与其外部没有设置特殊旋转带的钢夹套软核弹药组合，该枪管具有横截面构造，使得枪管的内表面限定为 具有圆形侧面和拐角的正多边形，哪些拐角在筒壁中形成膛线并且表示围绕内表面均匀间隔并且具有共同的曲率半径的弧形段，多边形的圆形边在圆角之间延伸并表示弧段 具有比第一个提到的曲率半径小的共同曲率半径，具有不同曲率半径的相邻弧段之间的过渡区域是连续的。