Noise reducing rod vehicle antenna
    1.
    发明授权
    Noise reducing rod vehicle antenna 失效
    降噪杆车载天线

    公开(公告)号:US5917452A

    公开(公告)日:1999-06-29

    申请号:US807420

    申请日:1997-02-28

    CPC classification number: H01Q1/005 H01Q1/1285 Y10S343/01

    Abstract: A rod-shaped vehicle antenna according to the present invention, includes a rod-shaped antenna element having small- and large-diameter portions arranged alternately at regular pitches along the longitudinal direction of a rod-shaped conductor. When the outside diameter of each of the small-diameter portions is D1, that of each of the large-diameter portions is D2, and the pitch (length of each of the small- and large-diameter portions) is P, P is set within the following range:(D2.times.6).ltoreq.P.ltoreq.(D2.times.7). The ratioof D1 to D2, that is, D1/D2 is set within the following range:0.7.ltoreq.(D1/D2).ltoreq.0.85.

    Abstract translation: 根据本发明的杆状车辆用天线,具有沿着杆状导体的长度方向以规定间距交替设置的小直径大直径部的杆状天线元件。 当每个小直径部分的外径为D1时,每个大直径部分的外径为D2,并且每个小直径部分的间距(P)分别为P,P设定 在以下范围内:(D2x6)

    Collapsible rooftop microwave antenna with wind loading feature
    2.
    发明授权
    Collapsible rooftop microwave antenna with wind loading feature 失效
    可折叠屋顶微波天线,具有风力装载功能

    公开(公告)号:US4490726A

    公开(公告)日:1984-12-25

    申请号:US384527

    申请日:1982-06-03

    Applicant: Walter F. Weir

    Inventor: Walter F. Weir

    CPC classification number: H01Q1/084 H01Q1/125 Y10S343/01

    Abstract: A parabolic, collapsible rooftop microwave antenna for direct satellite-to-consumer TV transmission pivots in the direction of the aperture axis about a horizontal pivot axis in response to excessive wind forces. The antenna has a cross-head theodolite-type mount adjustable for azimuth and elevation, with a horizontal pivot that provides axial displacement if the axial wind force exceeds a predetermined threshold force. This limits the torque transmitted to the roof on which the antenna is mounted to a reasonably low level. Various torque sensitive horizontal pivots are described including a torqued pivot bolt, torqued slide bolts disposed in arcuate slots for limit-stop action, shear pins for quick release action, and biased springs for collapse and self-restoration to the initial vertical position in response to transient wind force exceeding a threshold force set by the spring bias.

    Abstract translation: 用于直接卫星到消费者电视传输的抛物面的,可折叠的屋顶微波天线响应于过大的风力,围绕水平枢转轴线在孔径轴线的方向上枢转。 天线具有用于方位角和仰角可调节的十字头经纬仪型座架,其中水平枢轴在轴向风力超过预定阈值力时提供轴向位移。 这将将天线安装在屋顶上的扭矩限制在相当低的水平。 描述了各种扭矩敏感的水平枢轴,其包括扭转的枢转螺栓,设置在用于限位动作的弧形槽中的扭转滑动螺栓,用于快速释放动作的剪切销,以及用于塌缩和自恢复到初始垂直位置的响应于响应于 瞬态风力超过由弹簧偏置设定的阈值力。

    Parallel-conductor transmission line antenna
    4.
    发明授权
    Parallel-conductor transmission line antenna 失效
    平行导线传输线天线

    公开(公告)号:US5363115A

    公开(公告)日:1994-11-08

    申请号:US66911

    申请日:1993-05-24

    CPC classification number: H01Q1/42 H01Q1/50 H01Q13/20 Y10S343/01

    Abstract: A microwave antenna has an elongated tubular radome made of a rigid nonconductive material, and an elongated unitary core made of a rigid dielectric material and telescoped within the radome in supporting engagement with the inner surface of said radome. A pair of conductive antenna elements are affixed to the surface of the core and extend along the length thereof. A microwave transmission line is connected to the antenna elements for transmitting electromagnetic energy to and from the elements.

    Abstract translation: 微波天线具有由刚性非导电材料制成的细长管状天线罩,以及由刚性电介质材料制成的细长整体式核心,并且可伸缩在天线罩内,与天线罩的内表面支撑接合。 一对导电天线元件固定到芯的表面并沿其长度延伸。 微波传输线连接到用于向元件传导电磁能的天线元件。

    Manually extendable telescoping antenna
    5.
    发明授权
    Manually extendable telescoping antenna 失效
    手动伸缩伸缩天线

    公开(公告)号:US4920354A

    公开(公告)日:1990-04-24

    申请号:US127195

    申请日:1987-12-01

    CPC classification number: H01Q1/3275 H01Q1/10 Y10S343/01

    Abstract: Manually extendable telescoping antenna for a vehicle or vessel having a continuous core provided in the interior of the antenna to reduce mechanical/wind generated vibration noises. With the antenna extended, the core loosely touches the insides of the hollow telescoping elements and thus dampens and prevents creating a propagation of eigen-vibrations into the vehicle or vessel interior. The preferred core configuration may be a plastic band, plastic coated wire, or hollow or foam-filled plastic tube formed in a helical spiral secured at its lower end to a guide tube and at its upper end to the solid rod upper antenna section.

    Abstract translation: 用于具有设置在天线内部的连续芯的车辆或容器的手动伸缩伸缩天线,以减少机械/风产生的振动噪声。 在天线延伸的情况下,芯松散地接触中空伸缩元件的内部,从而阻尼并防止产生本征振动传播到车辆或船只内部。 优选的芯构造可以是塑料带,塑料涂层线,或形成为螺旋形螺旋形的中空或泡沫填充的塑料管,该塑料管在其下端固定到导向管,并且其上端固定在实心杆上天线部分。

    Shunt arrangement with power overload protection by a voltage responsive
bidirectional switch
    7.
    发明授权
    Shunt arrangement with power overload protection by a voltage responsive bidirectional switch 失效
    通过电压响应双向开关进行功率过载保护的并联装置

    公开(公告)号:US4656554A

    公开(公告)日:1987-04-07

    申请号:US713495

    申请日:1985-03-19

    CPC classification number: G01R15/08 H02H9/04 Y10S343/01

    Abstract: A shunt arrangement for processing the output current of an inductive current transformer having a wide dynamic range in which, in order to provide high-precision conversion with smaller currents, a power shunt is connected in series with a precision shunt which is connected in parallel with an overvoltage protection circuit containing a switchable semiconductor rectifier and a control circuit. The rectifier changes to a conductive state if the voltage at the precision shunt reaches a limit value. The control circuit contains a symmetric voltage limiting element which is constructed as a pair of limiting diodes or as a fullwave rectifier, the output of which is connected to a reference diode. In order to check the switching state of the overvoltage protection circuit, the series circuit including the power shunt and the precision shunt is connected in parallel with a series circuit consisting of a first bridge resistor and a second bridge resistor which, together with the shunts, form a balanced bridge circuit whereby, when the overvoltage protection circuit is inhibited, bridge circuit is monitored by a window discriminator.

    Abstract translation: 一种用于处理具有宽动态范围的感应电流互感器的输出电流的分流装置,其中为了提供具有较小电流的高精度转换,功率分流器与精确分流串联连接,所述精密分流器与 包含可切换半导体整流器和控制电路的过电压保护电路。 如果精密分流器处的电压达到极限值,整流器将变为导通状态。 控制电路包含对称限压元件,该元件被构造为一对限制二极管或全波整流器,其全部输出连接到参考二极管。 为了检查过压保护电路的开关状态,包括功率分流器和精密分流器的串联电路与由第一桥式电阻器和第二桥式电阻器组成的串联电路并联连接,该串联电路与分流器一起, 形成平衡桥式电路,由此当过电压保护电路被禁止时,桥接电路由窗口鉴别器监视。

    Anti-stalling rotating antenna buoy system using wind deflecting plates
    8.
    发明授权
    Anti-stalling rotating antenna buoy system using wind deflecting plates 失效
    使用防偏转板的防失转动天线浮标系统

    公开(公告)号:US4509054A

    公开(公告)日:1985-04-02

    申请号:US446735

    申请日:1982-12-03

    CPC classification number: H01Q1/34 H01Q1/005 Y10S343/01

    Abstract: A plurality of plates are rigidly affixed normal to forward and rearward surfaces along a major axis of a maximal diameter of an asymmetrical rotating antenna. In the presence of a wind, any aerodynamic forces tending to produce aerodynamic rotational moments on the antenna are reduced by the interaction between the wind, which produces a boundary layer on the antenna, and the plates, which affect the boundary layer.The net effects of the plates are to reduce the aerodynamic pressure difference between the forward and rearward surfaces of the antenna and to move the center of aerodynamic pressure closer to the center of rotation of the antenna. Due to these effects, the overall aerodynamic rotational movement on the antenna is reduced.

    Abstract translation: 多个板沿着不对称旋转天线的最大直径的长轴刚性地固定到正面和后表面上。 在存在风的情况下,通过在天线上产生边界层的风与影响边界层的板之间的相互作用减小了倾向于在天线上产生空气动力学旋转力矩的任何气动力。 板的净效应是减小天线前后表面之间的空气动力压力差,并使空气动力压力的中心更靠近天线的旋转中心。 由于这些影响,天线上的整体气动旋转运动减小。

    Pendulum
    9.
    发明授权
    Pendulum 失效

    公开(公告)号:US4834224A

    公开(公告)日:1989-05-30

    申请号:US19274

    申请日:1987-02-27

    Applicant: Eduard Haider

    Inventor: Eduard Haider

    CPC classification number: F16F1/00 A47C21/006 A47C3/0255 A47D9/02 Y10S343/01

    Abstract: A pendulum for suspending a swinging article from a support structure includes an elongated core having longitudinal ends, enlarged tension heads disposed on each of the longitudinal ends and operable to be engaged and supported by the article and the support structure, a plurality of stiff toroidal elements strung on the elongated core, one of the toroidal elements being a first end toroidal element which is spaced from one of the tension heads, another of the toroidal elements being a second toroidal element which is spaced from the other of the tension heads.

    Abstract translation: PCT No.PCT / DE86 / 00205 Sec。 371日期1987年2月27日 102(e)日期1987年2月27日PCT提交1986年5月13日PCT公布。 出版物WO86 / 06597 用于从支撑结构悬挂摆动制品的摆锤包括具有纵向端部的细长芯部,设置在每个纵向端部上的增大的张紧头,并且可操作以由制品和支撑结构接合和支撑 多个坚硬的环形元件串联在细长芯上,其中一个环形元件是与其中一个张紧头间隔开的第一端环形元件,另一个环形元件是与另一个间隔开的第二环形元件 的张力头。

    Vibration damper for slender vertical structures
    10.
    发明授权
    Vibration damper for slender vertical structures 失效
    用于变形垂直结构的振动阻尼器

    公开(公告)号:US3826340A

    公开(公告)日:1974-07-30

    申请号:US39889173

    申请日:1973-09-19

    Applicant: BROKAW H

    Inventor: BROKAW H

    CPC classification number: H01Q1/14 F16F7/108 Y10S343/01

    Abstract: A damper for detuning a vertical slender structure such as a monopole antenna, subject to wind induced vibrations, the damper having a ''''mushroom'''' shaped configuration with a cap mounted on one end of a flexible stem, the other end of the stem secured to the top of the structure enabling the cap to oscillate out-ofphase with the vibrating structure.

    Abstract translation: 用于使诸如单极天线的垂直细长结构失谐的阻尼器,受到风引起的振动,阻尼器具有“蘑菇”形构造,其中帽安装在柔性杆的一端上,杆的另一端固定到 该结构的顶部使得盖能够与振动结构异相振荡。

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