COLLAPSIBLE BASEWAD
    1.
    发明公开
    COLLAPSIBLE BASEWAD 失效
    一种可折叠的黄铜头。

    公开(公告)号:EP0487644A1

    公开(公告)日:1992-06-03

    申请号:EP90913975.0

    申请日:1990-08-14

    申请人: OLIN CORPORATION

    IPC分类号: F42B5

    CPC分类号: F42B5/313

    摘要: En association avec une douille (10) de cartouche ayant une paroi tubulaire (14) et une tête (16) fermant une extrémité de la paroi (14) une amorce (20) disposée au travers de la tête (16) et une charge propulsive (13) dans la douille (10), une bourre de base déformable (12) est décrite et comprend un corps unitaire (24) entre la charge (13) et la tête (16). Le corps unitaire (24) possède une partie supérieure concave vers le haut (24) s'ouvrant sur la charge propulsive (13) et une partie de base généralement cylindrique (30). La partie supérieure (28) peut subir une déflexion. Ces parties (28, 30) et la paroi tubulaire (14) définissent entre elles une cavité annulaire (42) à l'arrière de la charge propulsive (13). Cette cavité (42) est déformée et s'affaisse lors de l'allumage de la charge propulsive (13) par déflexion de la partie supérieure (28), ce qui réduit le recul ressenti par le tireur, sans pour autant ajouter un poids parasite à la charge du projectile. La partie supérieure (28) de la bourre de base (12) présente de préférence une forme en cône creux tronqué et inversé. Un canal annulaire ouvert vers le haut (52) dans la surface extrême supérieure (36) de la portion de base (30) de la bourre de base (12) augmente la force d'étanchéité entre la partie de base (30) de la bourre (12) et la paroi tubulaire (14) de la douille (10) de la cartouche.

    COLLAPSIBLE BASEWAD
    2.
    发明授权
    COLLAPSIBLE BASEWAD 失效
    可折叠的黄铜头

    公开(公告)号:EP0487644B1

    公开(公告)日:1996-04-24

    申请号:EP90913975.0

    申请日:1990-08-14

    申请人: OLIN CORPORATION

    IPC分类号: F42B7/06

    CPC分类号: F42B5/313

    摘要: In combination with a cartridge case (10) having a tubular wall (14) and a head (16) closing one end of the wall (14), a primer (20) disposed through the head (16) and a propellant charge (13) in the case (10), a collapsible basewad (12) is disclosed which comprises a unitary body (24) between the charge (13) and the head (16). The unitary body (24) has an upwardly concave upper portion (24) opening to the propellant charge (13) and a generally cylindrical base portion (30). The upper portion (28) is deflectable. These portions (28, 30) and the tubular wall (14) define therebetween an annular cavity (42) rearward of the propellant charge (13). This cavity (42) is collapsed upon ignition of the propellant charge (13) by deflection of the upper portion (28) thereby reducing the recoil felt by the shooter without adding any parasitic weight to the projectile load. The upper portion (28) of the basewad (12) preferably has an inverted truncated hollow cone shape. An upwardly open annular channel (52) in the upper end surface (36) of the base portion (30) of the basewad (12) enhances the sealing force between the base portion (30) of the basewad (12) and the tubular wall (14) of the cartridge casing (10).

    SHOTSHELL BASEWAD
    3.
    发明公开
    SHOTSHELL BASEWAD 审中-公开

    公开(公告)号:EP1141651A1

    公开(公告)日:2001-10-10

    申请号:EP99966055.8

    申请日:1999-12-08

    申请人: Olin Corporation

    IPC分类号: F42B7/02

    摘要: An ammunition cartridge (50) has a tube (51) extending along a central longitudinal axis from an aft end to a fore end. A metallic head (53) has a sleeve portion (61) secured to the tube along an aft section of the tube and has a centrally-apertured web portion (66) spanning the sleeve portion to form a base of the cartridge. A basewad (52) contained within the tube separately formed therefrom is located proximate the aft end of the tube. The basewad (52) has a generally cylindrical exterior surface. The basewad interior surface (72) extends from a generally forward-facing inner portion, forward and outward to a generally inward-facing fore portion (76) to define a skirt portion of the basewad. At least one projectile is carried within a fore volume of the tube. A propellant charge (96) is located aft of the projectile. Wadding (92) is located between the propellant charge (96) and the projectile. The wadding (92) includes an aft portion located at least partially concentrically within the basewad skirt portion to define a powder chamber (94) containing the propellant charge (96).

    摘要翻译: 弹药筒(50)具有从后端到前端沿着中央纵向轴线延伸的管(51)。 一个金属头(53)具有一个套管部分(61),该套管部分(61)沿着管的后部固定到管上,并具有一个横跨套管部分的中心开孔的腹板部分(66),以形成套管的底部。 包含在由其单独形成的管内的底座(52)位于管的后端附近。 底座(52)具有大致圆柱形的外表面。 底层内表面(72)从大致面向前方的内部部分,向前和向外延伸到大致面向内的前部部分(76),以限定基层的裙部。 至少一个射弹被携带在管的前部体积内。 推进剂装药(96)位于抛射体的后部。 填料(92)位于推进剂装药(96)和抛射体之间。 所述填塞物(92)包括后部分,所述后部分至少部分地同心地位于所述基部裙缘部分内以限定包含所述推进剂装药(96)的粉末室(94)。

    WATER RESISTANT SHOT WAD
    4.
    发明公开
    WATER RESISTANT SHOT WAD 失效
    防水射击WAD

    公开(公告)号:EP0704044A1

    公开(公告)日:1996-04-03

    申请号:EP93922756.0

    申请日:1993-09-27

    申请人: OLIN CORPORATION

    IPC分类号: F42B7

    CPC分类号: F42B7/04 F42B7/08

    摘要: A water resistant shotshell (10) has an internal moisture seal (32, 86) to preclude moisture intrusion into the propellant charge (26). The seal is at least one flexible tapered lip (32, 86) on the plastic shot wad (12) which is compressed against the inside surface of the shotshell tube over the powder charge. The preferred embodiment is a two piece shot wad having a shot cup portion (22) and a wad portion (24). The wad portion (24) has a central disk portion (28) and a tubular rim (30) terminating in a pair of opposing flexible lips (32) which provide a dual moisture seal.

    摘要翻译: 防水炮弹(10)具有内部防潮密封(32,86)以防止水分侵入推进剂装药(26)。 所述密封件是塑料丸粒垫块(12)上的至少一个柔性锥形唇缘(32,86),所述塑料丸粒垫块(12)在粉末装料上压靠在炮弹管的内表面上。 该优选实施例是具有一个冲击杯部分(22)和一个楔形部分(24)的两件式打击垫。 楔形部分(24)具有中心盘形部分(28)和终止于提供双重水分密封的一对相对的柔性唇部(32)的管状轮缘(30)。