Electro-magnetic plugging means for hot dip coating pot
    81.
    发明授权
    Electro-magnetic plugging means for hot dip coating pot 失效
    用于热浸镀锅的电磁堵塞装置

    公开(公告)号:US6106620A

    公开(公告)日:2000-08-22

    申请号:US765455

    申请日:1997-07-28

    CPC classification number: C23C2/24

    Abstract: A hot dip coating pot (2) having a strip inlet passage (3) and electro-magnetic plugging means to prevent leakage of bath liquid form the pot through that passage, wherein: the plugging means comprises two magnetic field generator (7) disposed one on each side of the passage; each generator projects an oscillating magnetic field into the passage from at least two poles of opposite polarity that are adjacent the passage and spaced apart in the through direction of the passage; the said at least two poles of each generator are respectively in substantial alignment with the corresponding poles of the other in the transverse direction of the passage; the magnetic field projected by the generators have flux patterns which are substantially mirror images with reference to a plane of reflection coinciding with a centre plane of the passage; and both generators operate at a frequency of more than seven kiloHertz. When no strip is present the fields combine and extend transversely of the passage. When a strip is present the fields not only plug the passage but also provide restraining forces to prevent deviation of the strip from its intended pass line.

    Abstract translation: PCT No.PCT / AU95 / 00458 Sec。 371日期1997年7月28日第 102(e)日期1997年7月28日PCT提交1995年7月26日PCT公布。 出版物WO96 / 03533 日期1996年2月8日具有条带入口通道(3)和电磁堵塞装置的热浸涂层(2),用于防止通过该通道从罐中泄漏浴液,其中:堵塞装置包括两个磁场发生器 (7)在通道的每一侧设置一个; 每个发生器将振荡磁场从与通道相邻的至少两个相反极性的极点投射到通道中并沿通道的贯通方向间隔开; 每个发电机的所述至少两个极分别在通道的横向方向上与另一个的相应极基本对准; 由发生器投射的磁场具有相对于与通道的中心平面重合的反射平面基本上是镜像的通量图; 两台发电机的运行频率都超过七千赫兹。 当没有条带存在时,这些领域结合并横向延伸通过。 当存在条带时,该场不仅堵塞通道,而且还提供约束力以防止条带偏离其预期通行线。

    Shaped-charge with simultaneous multi-point initiation of explosives
    84.
    发明授权
    Shaped-charge with simultaneous multi-point initiation of explosives 失效
    同时多点启动爆炸物

    公开(公告)号:US5479860A

    公开(公告)日:1996-01-02

    申请号:US340750

    申请日:1994-11-16

    Applicant: James Ellis

    Inventor: James Ellis

    CPC classification number: F42B1/02 E21B43/1185 F42B3/08

    Abstract: An apparatus for perforating an earth formation from a borehole having a housing, a detonator assembly, explosive material for producing the implosion forces and a metal liner of implosive geometry. The detonator assembly includes a predetermined pattern of precision electronic detonators based on exploding foil initiator, exploding bridge wire, spark gap or laser technology to simultaneously produce multiple initiation points of the explosive material for enhancing the implosion forces.

    Abstract translation: 一种用于从具有壳体的钻孔穿孔地层的装置,雷管组件,用于产生内爆力的爆炸材料和内爆几何形状的金属衬套。 雷管组件包括基于爆炸箔引发器,爆炸桥接线,火花隙或激光技术的预定图案的精密电子雷管,以同时产生爆炸材料的多个起始点,以增强内爆力。

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