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    Cell design for a trawl system and methods
    142.
    发明申请
    Cell design for a trawl system and methods 有权

    公开(公告)号：US20030093938A1

    公开(公告)日：2003-05-22

    申请号：US10012799

    申请日：2001-11-03

    Inventor： Sherif Safwat ,  Valentin G. Perevoshchikov

    IPC: A01K073/02

    CPC classification number: D07B5/005 ,  A01K73/04 ,  A01K75/00 ,  D04C1/12 ,  D07B1/02 ,  D07B2201/1096 ,  D07B2201/209

    Abstract: Mesh bars (35, 283) of a trawl (13, 263) include at least a portion having a corkscrew-shaped pitch which exhibits a hydrofoil-like effect. Such mesh bars (35, 283) are preferably formed from a material having a substantially incompressible cross-sectional shape. By appropriately selecting the lay and leading edge of mesh bars (35, 283), movement of the trawl (13, 263) through the water entrained environment creates a pressure differential and lift across that portion of mesh bars (25, 283) which exhibit the hydrofoil-like effect. The lift thus created increases performance characteristics of the trawl (13, 263) including increased trawl volume, improved trawl shape, and reduced vibration, noise, and drag. Obtaining the greatest improvement of trawls (13, 263) requires controlling a pitch range for twisted product strands (e.g. twisted ropes) (36, 37), and for straps (284) forming mesh bars (35, 283). For straps (284), control of a width to thickness ratio also significantly affects performance of the trawl (13, 263).

    Safety mountaineering rope and manufacturing method therefor
    143.
    发明申请
    Safety mountaineering rope and manufacturing method therefor 失效
    安全登山绳及其制造方法

    公开(公告)号：US20020170417A1

    公开(公告)日：2002-11-21

    申请号：US10145781

    申请日：2002-05-16

    Inventor： Radek Faborsky

    IPC: D04C001/00

    CPC classification number: D07B1/02 ,  A63B29/028 ,  D04C1/12 ,  D07B2201/209 ,  D07B2401/2075 ,  D07B2501/2069

    Abstract: A mountaineering rope (7) with the diameter 10.1 mm to 10.8 mm characterized in that the core (8) made from such number of Yarns being necessary for achieving required static strength and resistance to dynamic stress, has the same diameter as the diameter of the core (5) of the standard rope with light weight (4). A braiding (9) around the core (8) is made using a circular braiding machine with 44 carrier needles, and from yarn having linear density 15 OOdtex to 60 OOdtex on each carrier needle, and the thickness of the braiding (9) is the same as the thickness of the braiding (3) of the standard rope (1).

    Abstract translation: 一种直径为10.1mm至10.8mm的登山绳（7），其特征在于由实现所需静态强度和抗动态应力所需的由这样数量的纱线制成的芯（8）的直径与 （5）标准绳重量轻（4）。 使用具有44个承载针的圆形编织机和在每个承载针上具有线密度为15OOdtex至60Odtex的纱线，编织物（9）的编织物（9），并且编织物（9）的厚度为 与标准绳索（1）的编织物（3）的厚度相同。

    Safety rope for climbing and manufacturing method therefor
    145.
    发明授权
    Safety rope for climbing and manufacturing method therefor 失效
    安全绳及其制造方法

    公开(公告)号：US5060549A

    公开(公告)日：1991-10-29

    申请号：US480855

    申请日：1990-02-16

    Applicant: Michel Beal

    Inventor： Michel Beal

    IPC: A63B29/02 ,  D07B1/00

    CPC classification number: D04C1/12 ,  A63B29/028 ,  D07B1/148 ,  D07B1/04 ,  D07B2201/209 ,  D07B2501/2069 ,  D07B5/005

    Abstract: A climbing rope composed of a core of strands surrounded by a braided tubular sheath, whereby the tightness of the sheath determines the stiffness of flexibility of the rope. Most of the rope is flexible because its sheath is loose, while, near its end intended for creating the tying knot, there is a stiff section, i.e., a section whose sheath is tighter than along the rest of the rope. The stiff section is abrasion resistant where the climbing rope passes through the piton closest to the climber.

    Abstract translation: 由由编织的管状护套包围的线芯组成的攀爬绳索，由此护套的紧密度确定绳索的柔性的刚度。 大多数绳索是柔性的，因为其鞘是松动的，而在其用于产生捆扎结的端部附近，存在一个刚性部分，即其护套比绳索的其余部分更紧的部分。 刚性部分是耐磨的，其中攀爬绳穿过最靠近登山者的脚骨。

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