Piston/rocket projectile with separable casing

    公开(公告)号:US11788824B2

    公开(公告)日:2023-10-17

    申请号:US17741611

    申请日:2022-05-11

    CPC classification number: F42B5/18 F42B5/045 F42B5/184

    Abstract: A piston/rocket projectile for use within a launcher system having a barrel and method of firing such are presented herein. The projectile comprises a projectile body having a combustion chamber for propellant, a piston moveable to extend out a base of the projectile as a result of ignition of propellant in the combustion chamber, and vents for expulsion of combustion products from the ignition of propellant out of the projectile base after initial movement of the piston. A casing is secured to the base of the projectile body, enclosing the piston and vents prior to the ignition of propellant, and a separable joint is disposed between the casing and the base of the projectile body. Upon ignition of propellant in the combustion chamber, the projectile piston is forced down and the separable joint is caused to separate, leaving the casing in the barrel. After the piston completes exertion of propulsion force, combustion products of the ignition of propellant are expelled through the vents out of a lower end of the projectile and solid combustion byproducts from the ignition of the propellant are collected in the casing.

    PISTON/ROCKET PROJECTILE WITH FRANGIBLE CASING

    公开(公告)号:US20220146240A1

    公开(公告)日:2022-05-12

    申请号:US17331160

    申请日:2021-05-26

    Abstract: A piston/rocket projectile for use within a launcher system having a barrel and method of firing such are presented herein. The projectile comprises a projectile body having a combustion chamber for propellant, a piston moveable to extend out a base of the projectile as a result of ignition of propellant in the combustion chamber, and vents for expulsion of combustion products from the ignition of propellant out of the projectile base after initial movement of the piston. A casing is secured to the base of the projectile body, enclosing the piston and vents prior to the ignition of propellant, and a frangible joint is disposed between the casing and the base of the projectile body. Upon ignition of propellant in the combustion chamber, the projectile piston is forced against the casing and causes the frangible joint to break, leaving the casing in the barrel. After the piston completes exertion of propulsion force against the casing, combustion products of the ignition of propellant are expelled through the vents out of a lower end of the projectile and solid combustion byproducts from the ignition of the propellant are collected in the casing.

    Breech plug for a preloaded firearm system

    公开(公告)号:US10724837B2

    公开(公告)日:2020-07-28

    申请号:US15723595

    申请日:2017-10-03

    Applicant: Ardesa, S.A.

    Inventor: Thomas F. Hall

    Abstract: A sabot having an extended casing for containing propellant charge and a slotted top portion for securing a projectile. The propellant charge is ignited by gases that enter the lower portion of the sabot from a puncture developed by the mating of the sabot against a breech plug. The breech plug has a piercing component in the form of a sharpened forward edge to initiate puncture of the breech end of the sabot.

    METHOD AND LAUNCHER FOR LAUNCHING A PROJECTILE

    公开(公告)号:US20200033078A1

    公开(公告)日:2020-01-30

    申请号:US16469299

    申请日:2017-12-08

    Applicant: SAAB AB

    Abstract: The invention relates to a method for launching a projectile and a launcher comprising a barrel (1) accommodating a. a projectile (2); b. a rocket motor (13) at the rear end of the projectile (2) comprising a first compartment containing a first propellant; c. a countermass (3) at the rear end of the barrel (1); and d. a second compartment between the rocket motor (13) and the countermass (3) containing a second propellant, wherein said first and second compartments form a high pressure chamber (6) subsequent to firing of the projectile (2).

    Projectile body and corresponding ammunition round for small arms or a light firearm
    7.
    发明授权
    Projectile body and corresponding ammunition round for small arms or a light firearm 有权
    弹药身体及相应的弹药弹小型武器或轻型枪支

    公开(公告)号:US09429406B2

    公开(公告)日:2016-08-30

    申请号:US14422451

    申请日:2014-07-25

    Inventor: Dale Harrison

    Abstract: A projectile (14) for an ammunition round (10) for use with a small arms or light firearm comprises an elongated projectile body (16). The projectile body (16) has first and second axially opposed ends (18, 20) respectively and a cavity (20) extending there between. The cavity is able to hold a quantity of propellant (24). A plurality of seals (26) extend about an outer surface of the body (16). The seals (26) protrude radially from the body (16) and operate to form a substantial seal against an inner circumferential surface of a barrel (12) of the firearm. Two of the seals (26b and 26c) are mutually adjacent and spaced apart in a direction of a longitudinal axis of the body to form a seal bound outer surface portion (36) of the body (16). One or more holes (38) are formed in the body (16) enabling fluid communication between the cavity (22) and the seal bound outer surface portion (36) of the body (16). This enables pressure equalization inside and outside of the cavity (22) about the seal bound outer surface portion (36) when the projectile (14) is travelling through the barrel (12).

    Abstract translation: 用于与小武器或轻型枪支一起使用的弹药弹(10)的弹药(14)包括细长的射弹体(16)。 射弹体(16)分别具有第一和第二轴向相对的端部(18,20)和在其间延伸的空腔(20)。 空腔能够容纳一定数量的推进剂(24)。 多个密封件(26)围绕主体(16)的外表面延伸。 密封件(26)从主体(16)径向突出并且操作以形成抵靠火器枪管(12)的内圆周表面的实质密封。 两个密封件(26b和26c)相互相邻并且在主体的纵向轴线的方向上间隔开以形成主体(16)的密封结合外表面部分(36)。 一个或多个孔(38)形成在主体(16)中,使得空腔(22)和主体(16)的密封结合的外表面部分(36)之间能够流体连通。 这使得当抛射体(14)行进通过枪管(12)时,围绕密封结合的外表面部分(36)在空腔(22)的内部和外部压力平衡。

    Primer propellant electrical ignition interconnect arrangement for
single and multiple piece ammunition
    8.
    发明授权
    Primer propellant electrical ignition interconnect arrangement for single and multiple piece ammunition 失效
    用于单件和多件弹药的底漆推进剂电气点火互连装置

    公开(公告)号:US5263416A

    公开(公告)日:1993-11-23

    申请号:US832066

    申请日:1992-02-06

    CPC classification number: F42B5/181 F42B5/08 F42B5/105

    Abstract: A multi-piece ammunition round includes an aft cartridge, a forward cartridge, and a projectile disposed in an end-to-end nested, serial arrangement. The aft and forward cartridges each contain a charge of propellant. The projectile contains a high explosive filler and a projectile fuze. The round also includes a propellant-primer electrical ignition interconnect arrangement associated with the aft and forward cartridges. The ignition interconnect arrangement includes a multi-element primer disposed in a base of the aft cartridge for contact by a firing mechanism of a gun system and communicating with the propellant charge contained in the aft cartridge, an electrical interconnect interface disposed between the aft and forward cartridges, an electro-explosive device disposed in the propellant charge contained in the forward cartridge, a first plurality of insulated electrical conductors disposed in the aft cartridge and electrically connecting the primer with the electrical interconnect interface, and a second plurality of insulated electrical conductors disposed in the forward cartridge and electrically connecting the interconnect interface with the electro-explosive device.

    Abstract translation: 多件式弹药包括一个后置盒式磁带,一个前向盒式磁带和一种以端对端嵌套式连续排列布置的抛射体。 后方和后方的弹药筒各自含有推进剂。 射弹包含高爆炸填料和射弹引信。 该轮还包括与尾部和前进盒相关联的推进剂 - 底漆电点火互连装置。 点火互连装置包括设置在后筒的底座中的多元件底座,用于与枪系统的击发机构相接触并与包含在后筒中的推进剂电荷连通,设置在后部和前部之间的电互连接口 药筒,设置在前置药筒中的推进剂电荷中的电爆炸装置,设置在后部药筒中并将底漆与电气互连接口电连接的第一多个绝缘电导体和设置在第二多个绝缘电导体 在前向盒中并将互连接口与电爆炸装置电连接。

    Fuel injection with flameholding
    9.
    发明授权
    Fuel injection with flameholding 失效
    燃油喷射与阻燃

    公开(公告)号:US4091731A

    公开(公告)日:1978-05-30

    申请号:US702641

    申请日:1976-07-06

    CPC classification number: F42B10/40 Y10S60/917

    Abstract: A method and apparatus for improving combustion efficiency in external bung assisted projectiles by providing a stepped configuration of the projectile body and placing the injector ports in the recirculation zone created behind said step near the base of the projectile.

    Abstract translation: 一种通过提供射弹体的阶梯状构造并将喷射器端口放置在靠近射弹底部的所述台阶后面产生的再循环区中来提高外部燃烧辅助射弹燃烧效率的方法和装置。

    Powerhead cartridge
    10.
    发明授权
    Powerhead cartridge 失效
    磁头盒

    公开(公告)号:US4058062A

    公开(公告)日:1977-11-15

    申请号:US779910

    申请日:1977-03-21

    Applicant: Rhett McNair

    Inventor: Rhett McNair

    CPC classification number: F42B5/10

    Abstract: A 30-30 casing has sharpened rings formed in its enlarged base. Powder is packed in the casing, and it is sealed by inserting a primer portion, which is a 38 caliber pistol shell with a primer, in the open end of the packed casing and compressing the edge of the casing in the base area of the primer portion.Radial extensions on the casing hold the cartridge centered in a barrel spaced from a firing pin.The primer is ignited by hitting the sharpened rings against an underwater object and thus driving the cartridge and primer rearward against a fixed firing pin. The casing rockets forward out of the barrel, leaving the primer piece and smashing into the underwater object while the powder burns.

    Abstract translation: 30-30外壳在其扩大的基座上形成了锐化的环。 将粉末包装在壳体中,并且通过在包装的壳体的开口端插入作为具有底漆的38口径手枪壳体的底漆部分并在底漆区域中压缩壳体的边缘来进行密封 一部分。

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