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    REDUCED DRAG CABLE FOR USE IN WIND TUNNELS AND OTHER LOCATIONS
    51.
    发明申请
    REDUCED DRAG CABLE FOR USE IN WIND TUNNELS AND OTHER LOCATIONS 有权
    减少使用的电缆，用于风洞和其他地点

    公开(公告)号：US20060021428A1

    公开(公告)日：2006-02-02

    申请号：US11184940

    申请日：2005-07-19

    Applicant: N. Metni

    Inventor： N. Metni

    IPC: G01M9/00

    CPC classification number: A63G31/00 ,  A63G2031/005 ,  B64D23/00 ,  D07B5/005 ,  D07B2201/1016 ,  D07B2201/2037

    Abstract: A reduced drag cable for use in vertical wind tunnels and other applications with a change in the spacing and/or size of the strands of a standard twisted wire cable is disclosed. The perimeter strands of one embodiment all have a standard diameter, with the exception of one or more wires with different diameter from the other perimeter strands. The different sized strand forms a helical feature around the cable, creating a non-circular profile to reduce drag in air.

    Abstract translation: 公开了一种用于垂直风洞和其他应用的减小牵引电缆，其中标准绞线电缆的绞合线的间距和/或尺寸发生变化。 一个实施例的周边线都具有标准直径，除了一个或多个与其它周边线不同直径的线。 不同尺寸的股线在电缆周围形成螺旋形特征，产生非圆形轮廓以减少空气中的阻力。

    Bi-directional, manufacturable, lift-generating mesh bar
    53.
    发明授权
    Bi-directional, manufacturable, lift-generating mesh bar 失效
    双向，可制造，起重网格

    公开(公告)号：US06434879B1

    公开(公告)日：2002-08-20

    申请号：US09601543

    申请日：2001-02-21

    Applicant: Sherif Safwat ,  Valentin G. Perevoshchikov

    Inventor： Sherif Safwat ,  Valentin G. Perevoshchikov

    IPC: A01K7302

    CPC classification number: D04C1/08 ,  A01K73/02 ,  A01K73/04 ,  A01K75/00 ,  D07B1/02 ,  D07B5/005 ,  D07B2201/1016

    Abstract: Mesh cells (30) for machine-made netting (51) use pairs of mesh bars (35) made from a continuous length of material and meet at a common coupler (34). Such mesh bars (35) have a lay with a common direction throughout the length of material. In a zig-zag pattern used in knitting machine-made netting (31), the longitudinal axis of symmetry (38) of mesh bars (35) turns at each coupler (34). Towing such mesh bars (35) causes water to flow past pairs thereof in two different directions with respect to their common lay. The directions of water flow are neither parallel nor perpendicular to the longitudinal axis of symmetry (38) of the mesh bars (35). As water flows past the mesh bars (35), the cross-sectional shapes of the mesh bars (35) produce a net component of force that is oriented in a direction perpendicular to a combined drag component of force for the mesh bars (35).

    Abstract translation: 用于机器制网（51）的网孔（30）使用由连续长度的材料制成的成对的网棒（35），并在公共耦合器（34）处相遇。 这种网格条（35）在整个材料长度上具有共同的方向。 在针织机网（31）中使用的锯齿形图案中，网杆（35）的纵向对称轴（38）在每个联接器（34）处转动。 牵引这样的网状物（35）使得水能够相对于其共同的铺设在两个不同的方向上流过其对。 水流的方向既不平行也不垂直于网杆（35）的纵向对称轴线（38）。 当水流过网格条（35）时，网格条（35）的横截面形状产生一个力的净分量，该网分量垂直于网格（35）的组合力分量的方向定向， 。

    Apparatus for identification of need to replace synthetic fiber ropes
    54.
    发明授权
    Apparatus for identification of need to replace synthetic fiber ropes 有权
    识别需要替代合成纤维绳的装置

    公开(公告)号：US06247359B1

    公开(公告)日：2001-06-19

    申请号：US09449332

    申请日：1999-11-24

    Applicant: Claudio De Angelis

    Inventor： Claudio De Angelis

    IPC: G01L504

    CPC classification number: D07B1/14 ,  D07B1/025 ,  D07B1/145 ,  D07B1/148 ,  D07B2201/1016 ,  D07B2201/1036 ,  D07B2201/108 ,  D07B2201/2074 ,  D07B2205/205 ,  D07B2401/2015 ,  D07B2801/10

    Abstract: To identify the need for replacement of stranded synthetic fiber ropes, preferably ropes of aramide fiber, a torsionally neutral rope construction of load-bearing fiber strands is obtained by having at least two layers of strands laid together in opposite directions so that the torsional forces in the layers of strands compensate each other. If the layers of the strands become weakened by unequal amounts due to wear or external influences, when the rope is under load and running operationally it begins to twist about its longitudinal axis. The twisting of the rope can be made visible by a colored mark or strip extending along the length of the rope to indicate twisting of the rope thereby providing visual identification of the need for replacement of the rope.

    Abstract translation: 为了确定需要更换绞合的合成纤维绳索，优选的是芳族聚酰胺纤维绳，通过将至少两层绞合线放置在相反的方向上来获得承载纤维束的扭转中性绳索结构， 线的层彼此补偿。 如果由于磨损或外部影响，股线的层由于不相等的数量而变弱，当绳索处于负载状态并在其运行状态下运行时，其开始围绕其纵向轴线扭转。 绳索的扭转可以通过沿绳索的长度延伸的有色标记或条带使其可见，以指示绳索的扭转，从而提供对更换绳索的需要的视觉识别。

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