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48 条记录 (耗时 0.011 秒)

    Pneumatic sensing actuator
    1.
    发明授权
    Pneumatic sensing actuator 有权

    公开(公告)号：US10562260B2

    公开(公告)日：2020-02-18

    申请号：US14762033

    申请日：2014-01-21

    申请人： PRESIDENT AND FELLOWS OF HARVARD COLLEGE

    发明人： Yong-Lae Park ,  Robert J. Wood ,  Jobim Jose Robinsantos ,  Eugene C. Goldfield

    IPC分类号： B32B3/00 ,  F15B15/10 ,  B29D23/00 ,  B29C39/12 ,  F15B15/28 ,  B29K101/00 ,  B29K105/14 ,  B29K105/24

    摘要： A pneumatic artificial muscle (PAM) actuator body can be formed from an elastic material that includes an inflatable chamber and a restraining component, such as flexible, but inextensible fibers, that causes the actuator to contract when the chamber is inflated with fluid (e.g., air or water). The actuator body can be cylindrical or flat. The actuator body can include a sensor layer formed of an elastic material including a microchannel filled with a conductive fluid to sense the expansion of the actuator body. The sensor layer can be configured to expand when the actuator body is inflated causing the electrical resistance of the conductive fluid to change. A sensor layer between the actuator body and restraining component can be used to measure changes in the contraction force of the actuator and a sensor layer outside of the restraining component can be used to measure changes in the length of the actuator.

    Fiber reinforced resin screw
    2.
    发明授权
    Fiber reinforced resin screw 有权

    公开(公告)号：US10533596B2

    公开(公告)日：2020-01-14

    申请号：US15519706

    申请日：2015-11-19

    申请人： MITSUBISHI HEAVY INDUSTRIES, LTD.

    发明人： Akira Ikada ,  Naohiro Horie

    IPC分类号： F16B33/00 ,  B29C45/00 ,  F16B33/02 ,  B29D1/00 ,  B29K71/00 ,  B29K105/14 ,  B29K309/08 ,  B29L1/00

    摘要： The present invention is relates to a fiber reinforced resin screw 10, 20 shaped using a resin composition containing reinforcing fiber in a resin. A pitch of threads has a length of 1.5 to 2 times of a standard pitch corresponding to an outer diameter of the threads prescribed in standards of a metric coarse screw, a unified coarse screw and a unified fine screw. An average fiber length of the reinforcing fiber is 1 to 1/3 times of the pitch of the threads in the fiber reinforced resin screw. A content rate of the reinforcing fiber is in a range of 20 to 80%. In this way, the fiber reinforced resin screw to have improved is provided in the strength of the thread.

    Composite fiber rotor vane
    4.
    发明授权
    Composite fiber rotor vane 失效
    复合纤维转子叶片

    公开(公告)号：US5651930A

    公开(公告)日：1997-07-29

    申请号：US548107

    申请日：1995-10-25

    申请人： Nagendra N. Murching

    发明人： Nagendra N. Murching

    IPC分类号： F04C29/00 ,  B29C43/02 ,  B29C43/34 ,  B29C70/14 ,  B29C70/46 ,  B29D99/00 ,  B29K105/14 ,  B29L31/08 ,  F01C21/08 ,  F04C2/344 ,  F04C18/344 ,  B29C43/54

    CPC分类号： B29D99/0025 ,  B29C43/02 ,  B29C70/14 ,  B29C70/46 ,  F01C21/0809 ,  B29K2105/06 ,  B29K2105/14 ,  B29K2105/258 ,  B29L2031/08 ,  B29L2031/7498

    摘要： A rotor vane and a method for fabricating the rotor vane are provided in which the vane is formed of a thermoplastic matrix material having chopped fibers uniformly dispersed throughout the thermoplastic material, with the fibers aligned to extend in directions which are approximately parallel to a radial dimension in which the vane extends. A billet formed of the thermoplastic matrix material with the chopped fibers randomly oriented and uniformly dispersed within the thermoplastic matrix material is placed in vane forming dies. The dies have an interior surface which is in the shape of the vane. The billet is placed within the dies with the longitudinal length of the billet extending perpendicular to the radial dimension of the vane being formed and completely across the axial dimension of the vane being formed. The billet is heated to a softening temperature and compressed within the dies to deform the billet into the shape of the interior surface of the dies, causing the thermoplastic matrix material to flow in flow directions which are approximately parallel to radial dimension of the vane being formed. Flowing of the thermoplastic matrix material in the flow directions aligns a substantial portion of the fibers with the flow directions, approximately parallel to the radial dimension of the vane. Then the thermoplastic matrix material is cooled to temperature below the softening temperature and the vane is removed from the dies.

    摘要翻译： 提供了一种转子叶片和用于制造转子叶片的方法，其中叶片由具有均匀分散在整个热塑性材料中的短切纤维的热塑性基质材料形成，纤维对齐以在大致平行于径向尺寸的方向上延伸 其中叶片延伸。 由热塑性基质材料形成的坯料与短切纤维随机取向并均匀分散在热塑性基质材料内，被放置在叶片成形模具中。 模具具有呈叶片形状的内表面。 坯料被放置在模具内，坯料的纵向长度垂直于所形成的叶片的径向尺寸延伸，并且完全穿过形成的叶片的轴向尺寸。 将坯料加热至软化温度并在模具内压缩以使坯料变形成模具内表面的形状，使得热塑性基体材料在大致平行于形成的叶片的径向尺寸的流动方向上流动 。 在流动方向上流动热塑性基质材料使纤维的大部分与大致平行于叶片的径向尺寸的流动方向对齐。 然后将热塑性基体材料冷却至低于软化温度的温度，并将叶片从模具中移出。

    Pultrusion process for preparing composites
    5.
    发明授权
    Pultrusion process for preparing composites 失效
    制备复合材料的拉挤成型工艺

    公开(公告)号：US5294461A

    公开(公告)日：1994-03-15

    申请号：US861346

    申请日：1992-03-30

    申请人： Hatsuo Ishida

    发明人： Hatsuo Ishida

    IPC分类号： B29C47/00 ,  B29B9/06 ,  B29B9/14 ,  B29B15/12 ,  B29B15/14 ,  B29C47/02 ,  B29C70/52 ,  B29K105/14 ,  B05D3/12

    CPC分类号： B29C70/521 ,  B29B15/125 ,  B29B9/14

    摘要： An improved pultrusion process for preparing composites comprises combining polymer precursors in a mixer and continuously introducing the resulting mixture, together with reinforcing fibers, into an impregnation chamber maintained under conditions such that the mixture remains in liquid form of low viscosity. The impregnated fibers are continuously withdrawn from the chamber through a die in which polymerization of the precursors takes place to form the desired composite.

    摘要翻译： 用于制备复合材料的改进的拉挤成型方法包括在混合器中混合聚合物前体，并将所得混合物与增强纤维连续引入保持在使得混合物保持低粘度的液体形式的条件下的浸渍室中。 浸渍的纤维通过其中前体的聚合进行的模头从室中连续取出以形成所需的复合材料。