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    • 6. 发明授权
    • Variable property wire mesh antenna structure
    • 可变属性网格天线结构
    • US3987457A
    • 1976-10-19
    • US494691
    • 1974-08-05
    • David W. Moore
    • David W. Moore
    • H01Q15/16H01Q15/20
    • H01Q15/161
    • A resiliently compliant, variable stiffness wire mesh structure, primarily for space applications, characterized by its lightweight construction, its compact stowage and deployment capability, and its ability to maintain its nominal shape under widely varying thermal conditions. The structure has a frame supporting a wire mesh including spring-like longitudinally compliant wires which are terminally secured to the frame to constitute primary structural elements of the mesh and are prestressed in a manner such that the compliant spring wires in different sections of the mesh have differing spring rates or stiffness. This non-uniform stiffness of the mesh is designed to maintain the mesh taut under widely varying thermal conditions and thereby avoid the formation of slack in the mesh wires which would allow out-of-plane displacement of the mesh. The described mesh structure is a wire mesh antenna reflector for space applications.
    • 弹性柔顺,可变刚度线网结构,主要用于空间应用,其特点是轻巧的结构,紧凑的装载和部署能力,以及在广泛变化的热条件下保持其标称形状的能力。 该结构具有支撑丝网的框架,其包括弹簧状纵向柔性线,其末端固定到框架以构成网的主要结构元件,并且以这样的方式进行预应力,使得网格的不同部分中的柔顺弹簧丝具有 不同的弹簧刚度或刚度。 网格的这种非均匀的刚度被设计成在宽泛变化的热条件下保持网状物的拉紧,从而避免在网状物中形成松弛,这将允许网格的平面外位移。 所描述的网状结构是用于空间应用的金属丝网状天线反射器。
    • 8. 发明授权
    • Dock seal
    • 码头密封
    • US5109639A
    • 1992-05-05
    • US494123
    • 1990-03-15
    • David W. Moore
    • David W. Moore
    • B65G69/00
    • B65G69/008
    • An inflatable dock seal for mounting about a loading dock opening to provide a cushioned seal against a vehicle has an upper inflatable curtain and a pair of inflatable side members; the side members inflate laterally of the opening directly towards each other along a phantom axis of inflation which is perpendicular to a phantom axis of entry of the opening; the side members are in particular L-shaped and inflate laterally of the L-shape; the inflatable foot of the L-shape forming a bottom seal extending from the wall to the leg of the L-shape spaced from the wall; the spacing of the leg of the L-shape from the wall provides a window for entry of natural light to the opening.
    • 用于安装在装载码头开口上以提供抵靠车辆的缓冲密封件的可充气码头密封件具有上部可充气窗帘和一对可充气侧面构件; 侧构件沿垂直于开口的入射假想轴线的假想膨胀轴线朝向彼此横向膨胀; 侧构件特别是L形并且在L形侧面膨胀; L形的可充气脚形成从壁延伸到与壁间隔开的L形腿的底部密封件; L形腿与墙壁的间距提供了一个窗口,用于将自然光线进入开口。