RF surface wave attenuating dielectric coatings composed of conducting, high aspect ratio biologically-derived particles in a polymer matrix
    21.
    发明授权
    RF surface wave attenuating dielectric coatings composed of conducting, high aspect ratio biologically-derived particles in a polymer matrix 失效
    RF表面波衰减电介质涂层由聚合物基质中由导电的高纵横比生物衍生的颗粒组成

    公开(公告)号:US06452564B1

    公开(公告)日:2002-09-17

    申请号:US09804643

    申请日:2001-03-09

    IPC分类号: H01Q142

    摘要: A coating composite is provided for a platform surface of an antenna array for, when applied to the platform, affording isolation of radiating and receiving antennas of the array. The coating composite includes a plurality of conductively coated elongate tubes dispersed in an insulating polymer matrix at a volume loading density approaching that at which the composite begins to conduct electrically over macroscopic distances, i.e., close to the percolation threshold. The tubes are preferably comprised of microtubules comprised of biologically-derived, high-aspect rod-shaped particles of microscopic dimensions having an electroless plated metal coating thereon.

    摘要翻译: 为天线阵列的平台表面提供涂层复合材料,当应用于平台时,提供阵列的辐射和接收天线的隔离。 涂层复合材料包括分散在绝缘聚合物基质中的多个导电涂覆的细长管,体积负荷密度接近复合材料开始在宏观距离上电导通,即接近渗滤阈值。 管优选包括由其上具有无电镀金属涂层的具有微观尺寸的生物衍生的高方位棒状颗粒组成的微管。

    Ice skate blade sharpener
    25.
    发明授权
    Ice skate blade sharpener 失效
    溜冰刀磨刀机

    公开(公告)号:US5607347A

    公开(公告)日:1997-03-04

    申请号:US628892

    申请日:1996-04-05

    IPC分类号: A63C3/12 B24D15/06 B24B9/04

    CPC分类号: B24D15/066 A63C3/10

    摘要: Improved apparatus for sharpening a blade of an ice skate. The device includes a plurality of abrasive element holders, each having an external profile substantially the same as that of the other holders. Each holder is provided with a cavity formed therewithin within which an abrasive element can be received. An abrasive element is received within its corresponding holder with an arcuate surface of the element, having a radius of curvature different from that of an arcuate surface of another abrasive element, exposed on one side of the holder. Each holder can, in turn, be received within a chamber defined within a housing. The housing is provided with an elongated slot so that a blade of an ice skate can be passed therethrough and brought into engagement with the abrasive element received within the holder held within the housing. Means are provided to orient an abrasive element holder received within the chamber so that the exposed arcuate surface of the abrasive element can be engaged by the blade of the ice skate as the blade is passed through the slot.

    摘要翻译: 改进了用于磨削溜冰鞋刀片的装置。 该装置包括多个研磨元件保持件,每个具有与其它保持件基本上相同的外形。 每个保持器设置有形成在其中的空腔中,可以容纳研磨元件。 研磨元件在其对应的保持器内容纳有元件的弓形表面,其具有与保持器的一侧上露出的另一研磨元件的弧形表面的曲率半径不同的曲率半径。 每个保持器又可以被接收在限定在壳体内的腔室内。 壳体设置有细长的狭槽,使得溜冰鞋的叶片可以穿过其中并与容纳在保持在壳体内的保持器内的研磨元件接合。 提供了用于使容纳在腔室内的研磨元件保持架定向的装置,使得当刀片穿过狭槽时,研磨元件的暴露的弧形表面可以被溜冰鞋的刀片接合。

    Circuit recloser test set
    26.
    发明授权
    Circuit recloser test set 失效
    电路重合器测试装置

    公开(公告)号:US4307345A

    公开(公告)日:1981-12-22

    申请号:US103468

    申请日:1979-12-14

    申请人: Paul E. Schoen

    发明人: Paul E. Schoen

    IPC分类号: G01R31/327 G01R31/02

    CPC分类号: G01R31/3272

    摘要: A test set designed to energize an oil filled circuit recloser with a reasonably constant current to simulate fault conditions for the purpose of verifying the recloser operation as specified by manufacturer's performance curves is disclosed. The test set of this invention is a self-contained unit comprising a selectable tapped auto-transformer, a variable vernier auto-transformer, a selectable power resistance bank, an output transformer, a control package and a monitor package.

    摘要翻译: 公开了一种测试装置,其设计用于以合理恒定的电流激励装满油的电路重合器,以模拟故障条件,以验证由制造商的性能曲线指定的重合器操作。 本发明的测试装置是一种独立的单元,包括可选择的抽头自动变压器,可变游标自动变压器,可选择的电力电阻组,输出变压器,控制组件和监视器组件。