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    • 5. 发明授权
    • Planing sailboard
    • 刨帆板
    • US07793604B2
    • 2010-09-14
    • US10157875
    • 2002-05-31
    • John H. Keller
    • John H. Keller
    • B63B35/79
    • B63B1/20B63B35/7906B63B35/792B63B35/7926B63B35/7953B63B2001/201B63B2001/202B63B2001/206
    • High performance of a sailboard is achieved over a wider range of wind and water conditions by providing a hull having two or more planing surfaces which may differ in shape and/or aspect ratio. Drag due to suction at steps between planing surfaces is reduced by venting to the air. Cusp shaping of the respective planing surfaces can reduce and stabilize the angle of attack at the displacement/planing transition without causing fore-and-aft pitching effects known as porpoising. By confining water under the planing surfaces to reduce lateral outflow thereof through increased downward curvature of the bottom of the board, winglets, asymmetrical fins, fences and the like, the effective width and aspect ratio of the wetted area may be altered beyond that of the actual geometry of the planing surfaces to further increase lift and reduce drag while providing additional sources of lift at displacement, transitional and planing speeds. Steps and/or cambered shapes of the planing surface may be used to dramatically further reduce wetted area and further increase effective aspect ratio.
    • 通过提供具有在形状和/或纵横比上可能不同的两个或更多个刨面的船体,可以在较宽范围的风和水条件下实现帆板的高性能。 通过排放到空气中减少由于在刨削表面之间的台阶处的吸力而拖动。 相应的刨削面的尖头成形可以减小并稳定位移/刨削过渡处的迎角,而不会导致称为海豚的前后俯仰效应。 通过将水限制在刨削表面下,通过增加板的底部,小翼片,不对称翼片,围栏等的向下弯曲来减少侧向流出,湿润区域的有效宽度和纵横比可以被改变超过 刨削表面的实际几何形状,以进一步增加升力并减少阻力,同时在位移,过渡和刨削速度下提供额外的升力源。 可以使用刨削表面的台阶和/或弧形形状来显着地进一步减少润湿面积并进一步增加有效纵横比。
    • 6. 发明授权
    • Reduction of semiconductor structure damage during reactive ion etching
    • 反应离子蚀刻期间半导体结构损伤的减少
    • US5880034A
    • 1999-03-09
    • US841218
    • 1997-04-29
    • John H. Keller
    • John H. Keller
    • H01J37/32H01L21/3065H01L21/00
    • H01J37/321H01J37/3266H01L21/3065H01J2237/3341
    • Uniformity of plasma density and potential are increased by reducing plasma confinement through use of a non-uniform, graded magnetic field by asymmetric energization of electromagnets with a waveform including harmonics of a fundamental frequency. The magnetic field strength or intensity decreases in the direction of ExB drift of energetic electrons within the plasma which tends to cause additional ionization in the plasma and a gradient of plasma density and potential. Thus, increase in ionization due to ExB drift is balanced by reduction of plasma confinement. Uniformity of average exposure to the plasma is further increased by rotation of the magnetic field. Uniformity of plasma potential or wafer bias is further improved by modulation of the radio frequency (RF) power used to form the plasma in synchronism with decreases in the magnetic field during switching for magnetic field rotation.
    • 通过使用不均匀的梯度磁场,通过包括基波频率的波形的电磁体的不对称激励来降低等离子体密度和电位的均匀性。 磁场强度或强度在等离子体内的能量电子的ExB漂移方向上减小,这倾向于在等离子体中引起额外的电离和等离子体密度和电位的梯度。 因此,通过减少等离子体限制来平衡由ExB漂移造成的电离的增加。 平均暴露于等离子体的均匀性通过磁场的旋转进一步增加。 通过与用于磁场旋转的切换期间的磁场的减小同步地调制用于形成等离子体的射频(RF)功率来进一步提高等离子体电位或晶片偏置的均匀性。
    • 9. 发明授权
    • Sailboard step design with less ventilation and increased speed
    • 帆板踏步设计,通风较少,速度更快
    • US08622013B2
    • 2014-01-07
    • US13119035
    • 2009-09-16
    • John H. Keller
    • John H. Keller
    • B63B1/32
    • B63B1/18
    • A step shape in a planing hull for water craft and more particularly for sailboards, surfboard or PWC for increasing the lift in front of the step and decreasing it in back at high planing speed, which has dynamic lift directly behind the step when the hull is traveling at a transition speed between displacement mode and planing mode, but at high planing speed it does not have lift directly behind the step. The hull has increased speed because the lift behind the step at transition speed allows the position of the step to be moved forward and in one embodiment has cambered surface (9) in front of the step. This step does not go across the full width of the hull such that there is a continuous planing surface in front of the fins or other means, which it is desirous that they not ventilate, and fin or other means has more ventilation resistance in another embodiment.
    • 在水上工艺的平面船体中形成一个台阶,特别是帆板,冲浪板或PWC,用于增加台阶前的升力,并以高刨削速度将其降低回来,当船体为 以位移模式和刨削模式之间的过渡速度行驶,但是在高刨床速度下,它不会直接在踏板后面。 船体具有增加的速度,因为在转变速度之后的踏板上的升力允许台阶的位置向前移动,并且在一个实施例中在台阶前面具有弧形表面(9)。 该步骤不会穿过船体的整个宽度,使得在翼片或其他装置前面存在连续的刨削表面,这是希望它们不通风的,并且翅片或其它装置在另一个实施例中具有更多的通风阻力 。