Synchronously deployable truss structure
    91.
    发明授权
    Synchronously deployable truss structure 失效
    可同时部署的桁架结构

    公开(公告)号:US4578920A

    公开(公告)日:1986-04-01

    申请号:US556512

    申请日:1983-11-30

    Abstract: A collapsible-expandable truss structure 16 including first and second spaced surface truss layers (18, 20) having an attached core layer 22 is disclosed. The surface truss layers are composed of a plurality of linear struts 40 arranged in multiple triangular configurations with each linear strut being hinged at its center 41 and hingedly connected at each end thereof to a nodular joint 25. A passive spring 64 serves as the expansion force to move the folded struts from a stowed collapsed position to a deployed operative final truss configuration. Damper 62 controls the rate of spring 64 expansion for synchronized deployment of truss 16 as the folded configuration is released for deployment by restraint belts 72a and 73a synchronously extending under the control of motor (71) driven spools 72 and 73.

    Abstract translation: 公开了一种包括具有附接的芯层22的第一和第二隔开的表面桁架层(18,20)的可折叠扩展的桁架结构16。 表面桁架层由布置成多个三角形构造的多个线性支柱40组成,每个线性支柱在其中心41处铰接并且在其每一端处铰接地连接到节点接头25.被动弹簧64用作膨胀力 将折叠的支柱从收起的收起位置移动到展开的可操作的最终桁架构型。 阻尼器62控制弹簧64膨胀的速率,以便在由电动机(71)驱动的线轴72和73的控制下同步延伸的约束带72a和73a释放用于部署折叠构造的桁架16。

    Metallized sheet form textile material and method of making same
    92.
    发明授权
    Metallized sheet form textile material and method of making same 失效
    金属化片材纺织材料及其制造方法

    公开(公告)号:US4420757A

    公开(公告)日:1983-12-13

    申请号:US282105

    申请日:1981-07-06

    CPC classification number: D06M11/83 D06Q1/04 H01Q15/14 H01Q15/20

    Abstract: Metallized sheet-form textile materials of synthetic polymers or natural fibres, to which a metal layer has been applied by currentless wet-chemical deposition, are particularly suitable for use as reflectors for electromagnetic waves in the range from 10 MHz to 1000 GHz. In the case of stretched metallized fabrics, the reflecting radiation is partly polarized which can facilitate or improve the recognition of an object by radar beams. By periodically stretching and relaxing the fabric, it is even possible to modulate the reflected microwaves.

    Abstract translation: 合金聚合物或天然纤维的金属化片状纺织材料,通过无电流湿式化学沉积法施加金属层,特别适合用作10 MHz至1000 GHz范围内的电磁波的反射器。 在拉伸的金属化织物的情况下,反射辐射是部分极化的,其可以通过雷达波束促进或改善物体的识别。 通过定期地拉伸和松弛织物,甚至可以调节反射的微波。

    Radar reflectors
    93.
    发明授权
    Radar reflectors 失效
    雷达反射器

    公开(公告)号:US4352106A

    公开(公告)日:1982-09-28

    申请号:US184237

    申请日:1980-09-05

    Applicant: John H. Firth

    Inventor: John H. Firth

    CPC classification number: H01Q15/20 H01Q15/18

    Abstract: In order to provide coverage of a full 360 degrees of azimuth even when heeled a radar reflector consists of ten trihedral reflectors directed outwardly of a major axis the inner eight of which are formed in vertically displaced pairs of dihedral reflectors sub-divided by a divider portion which reflectors are positioned such that the apexes of the two central dihedral reflectors are relatively displaced about the major axis by an angle a and the apexes of the dihedral reflectors on each side of the central reflectors are displaced relative to the nearest apex of a central dihedral reflector each by an angle different to a, the arrangement being such that the spacing between the central axes of reflection of adjacent trihedral reflectors is in the range 25 degrees to 45 degrees. The reflector is suitable for use on small boats and other vessels and marine buoys.

    Abstract translation: 为了提供完整的360度方位角的覆盖,即使当高跟的雷达反射器由指向长轴的外部的十个三面体反射器组成时,其八个内部八个形成在垂直移位的二对面反射器对中,其被分隔部分 这些反射体被定位成使得两个中心二面体反射器的顶点相对于长轴相对移位一定角度α,并且中心反射体每侧上的二面体反射器的顶点相对于中心二面体的最近的顶点移位 反射器各自具有不同于a的角度,该布置使得相邻三面体反射器的反射的中心轴线之间的间隔在25度至45度的范围内。 反射器适用于小船和其他船舶和海洋浮标。

    Parabolic reflector
    95.
    发明授权
    Parabolic reflector 失效
    抛物面反射器

    公开(公告)号:US4268835A

    公开(公告)日:1981-05-19

    申请号:US117993

    申请日:1980-02-04

    CPC classification number: H01Q15/166

    Abstract: A reflector for high gain antennae comprising a plurality of generally triangular shaped petals joined in edgewise overlapping relation, wherein the overlap gradually increases from rim to center of the reflector, so as to provide a mechanically stable paraboloid configuration. The petals are supported by a rigid rim structure constructed of preformed tubular sections.

    Abstract translation: 一种用于高增益天线的反射器,包括以沿边重叠关系连接的多个大致三角形的花瓣,其中,所述重叠从所述反射器的边缘到中心逐渐增加,以便提供机械稳定的抛物面构造。 花瓣由预先形成的管状部分构成的刚性边缘结构支撑。

    Panel deployment system
    96.
    发明授权
    Panel deployment system 失效
    面板部署系统

    公开(公告)号:US4015653A

    公开(公告)日:1977-04-05

    申请号:US675007

    申请日:1976-04-08

    CPC classification number: H01Q15/20 H01Q1/1235

    Abstract: A mechanism for deploying and retracting an isogrid structure particularly suited for use in supporting low weight reflective or absorbtive surfaces, characterized by a plurality of hinged isogrid panels stowed in an accordian folded stack arranged for automatic deployment into a long continuous strip or array. Two deployment arms in contact with the stack of panels are rotated to a position perpendicular to the stack, carrying with them the first panels. Thereafter the panels are extended by powered sprockets which engage the panel edges. A shutter bar sequentially releases pairs of panels during deployment. For retraction, the sprockets drive the panels back toward the stack where a creaser bar hinges pairs of panels which are thereafter folded into a stack by means of the shutter bar capturing and stowing each folded pair of panels.

    Abstract translation: 一种用于部署和缩回特别适合于用于支撑低重量反射或吸收表面的等网格结构的机构,其特征在于,多个铰接的等网格板被放置在以折叠式折叠堆叠布置,用于自动展开成长的连续条带或阵列。 与堆叠的面板接触的两个展开臂旋转到垂直于堆叠的位置,与它们一起携带第一面板。 此后,面板通过接合面板边缘的动力链轮延伸。 快门条在部署期间顺序地释放成对的面板。 为了缩回,链轮驱动面板返回到堆叠,在那里一个压紧杆铰链成对的面板,然后通过快门棒捕获和收起每对折叠的面板将其折叠成堆叠。

    Expandable truss paraboloidal antenna
    97.
    发明授权
    Expandable truss paraboloidal antenna 失效
    可扩展的天线

    公开(公告)号:US3618111A

    公开(公告)日:1971-11-02

    申请号:US3618111D

    申请日:1967-04-28

    CPC classification number: H01Q15/161

    Abstract: This invention relates to an expandable truss paraboloidal antenna structure in which the truss structure of the reflector comprises hinged struts that form interconnecting, hinged, triangular truss modules that are aligned in two geometric planes with the struts terminating at junctions on the inner and outer surfaces of the paraboloidal shaped structure. The combination of hinge struts is packaged in a compact unit and then is deployed by being automatically unfolded outwardly by spring means in certain of the hinges.

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