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公开(公告)号:US3826339A
公开(公告)日:1974-07-30
申请号:US39627173
申请日:1973-09-07
Applicant: BROKAW H
Inventor: BROKAW H
CPC classification number: F16F7/108 , Y10S343/01
Abstract: A vibration damper for reducing vibration of an elongate member under tension, such as a cable utilizing a sleeve member clamped around the cable at both ends only, in a manner to be free to rock on the cable during vibration to suppress oscillations by shifting the natural resonant frequency of the vibrating cable.
Abstract translation: 一种减振器,用于减小拉伸下的细长构件的振动,例如利用仅在两端夹在电缆周围的套筒构件的电缆,可以在振动期间自由地摇摆在电缆上,以通过移动自然界来振动 振动电缆的谐振频率。
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公开(公告)号:US3210765A
公开(公告)日:1965-10-05
申请号:US11637761
申请日:1961-06-12
Applicant: COLLINS RADIO CO
Inventor: JONES PAUL R
IPC: H01Q1/20
CPC classification number: H01Q1/20 , Y10S343/01
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公开(公告)号:US2947989A
公开(公告)日:1960-08-02
申请号:US62477556
申请日:1956-11-28
Applicant: RCA CORP
Inventor: FORD JOHN R , KRUGER IRVING D , HAROLD PERKEL
IPC: H01Q3/04
CPC classification number: H01Q3/04 , Y10S343/01
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公开(公告)号:US5151711A
公开(公告)日:1992-09-29
申请号:US586806
申请日:1990-09-24
Applicant: Minoru Taguchi
Inventor: Minoru Taguchi
CPC classification number: H01Q1/005 , H01Q1/3283 , Y10S343/01
Abstract: An automobile antenna of a rod shape comprises an antenna element and a hollow cylindrical member of a resin fitted on the circumference of the antenna element. The hollow cylindrical member includes a plurality of hollow cylindrical units that may be coupled together or may be spaced apart. The cylindrical member has a ridge or ridges in the form of a spiral or ring. The ridge functions to generate a turbulent flow of air when the automobile runs at a high speed, so that a whistling sound generated by the wind blow may be eliminated. The method of making an antenna uses two offset molds having a plurality of cavities by the provision of spaced apart partitions, which also support the antenna element. A molding material is supplied into the cavities so that the ridges-bearing cylindrical member and the antenna element may be fabricated as one unit. Portions of the antenna element supported by the partitions, after molding operation, are exposed externally to attain an improved whistling sound elimination function.
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公开(公告)号:US4775867A
公开(公告)日:1988-10-04
申请号:US753188
申请日:1985-07-09
Applicant: David G. Sokol , William E. Midden
Inventor: David G. Sokol , William E. Midden
CPC classification number: H01Q1/526 , H01Q1/005 , Y10S343/01
Abstract: A vibration isolation and EMI/RFI shielded enclosure for a horn antenna comprises an elongate hollow housing of sufficient dimensions to receive the horn antenna therewithin. Respective front and rear vibration isolation mounting assemblies have inner mounting portions coupled with the horn antenna and outer mounting portions coupled with the housing and resilient vibration damping members coupled intermediate the inner and outer mounting portions. Preferably, an EMI/RFI shielded enclosure is also provided for enclosing electrical circuits associated with the horn antenna.
Abstract translation: 用于喇叭天线的隔振和EMI / RFI屏蔽外壳包括具有足够尺寸的细长空心壳体以便在其中接纳喇叭天线。 各个前后振动隔离安装组件具有与喇叭天线耦合的内部安装部分和与壳体联接的外部安装部分和联接在内部和外部安装部分之间的弹性振动阻尼部件。 优选地,还提供用于封闭与喇叭天线相关联的电路的EMI / RFI屏蔽外壳。
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公开(公告)号:US4567487A
公开(公告)日:1986-01-28
申请号:US620874
申请日:1984-06-15
Applicant: Charles W. Creaser, Jr.
Inventor: Charles W. Creaser, Jr.
CPC classification number: H01Q1/20 , H01Q1/005 , H01Q1/10 , Y10S343/01
Abstract: A mechanical vibration-tolerant whip antenna having, in combination, a multi-section conical metal tube having successive sections each joined by an internal rigid rod tightly fitting within a corresponding recess in the respective ends of each of the adjacent sections to be joined with the outer metal surfaces of the successive sections providing a continuous smooth external metal surface transition, and each rigid rod extending sufficiently above and below a node of mechanical vibration resonance to provide a rigid support to the node. Additional vibration-tolerance is achieved by vibration damper inserts disposed within the tube near each node of resonance to damp vibration of the tube.
Abstract translation: 一种机械耐振鞭状天线,其组合具有多段锥形金属管,其具有连续的部分,每个连接部分由内部刚性杆连接,内部刚性杆紧密地配合在每个相邻部分的相应端部中的相应凹部内,以与 连续部分的外部金属表面提供连续平滑的外部金属表面过渡,并且每个刚性杆在机械振动共振的节点的足够上方和下方延伸,以向节点提供刚性支撑。 通过在每个谐振节点附近设置在管内的振动阻尼器插件实现额外的抗振动,以阻止管的振动。
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公开(公告)号:US4146897A
公开(公告)日:1979-03-27
申请号:US869441
申请日:1978-01-16
Applicant: John A. F. Wilson , John Ganton
Inventor: John A. F. Wilson , John Ganton
CPC classification number: H01Q1/1235 , H01Q1/084 , Y10S343/01
Abstract: A readily assembled self-supporting structure for carrying an antenna and associated electronics apparatus includes a tripod base having support means for pivotably supporting a top mast on which the antenna and associated apparatus are mounted. Pivotably joined with the support means, a mast engaging member is adapted to swing in a predetermined direction to either raise or lower the mast. A heavy battery pack used to power the apparatus is pendulously suspended from the member below the support means and stabilizes the structure against wind forces without requiring ground anchors. In addition, the battery pack acting about the pivot erects the top mast in a perpendicular attitude irrespective of the slope of the antenna site. The structure is held rigid by means of three guys between the top of the mast and the feet of the tripod. One of the guys may be removed to allow the mast to swing when the battery is raised and the tripod legs are prevented from splaying at ground level by a continuous loop of wire rope passing through support pads on which the base rests.
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公开(公告)号:US4047182A
公开(公告)日:1977-09-06
申请号:US724842
申请日:1976-09-20
Applicant: Jack Faren
Inventor: Jack Faren
CPC classification number: H01Q1/20 , Y10S343/01
Abstract: This invention pertains to a new and inexpensive apparatus for inhibiting vibrations of existing or to be installed antennas such as are provided for use with VHF, UHF, FM and the like. These antennas include a longitudinal metal rail or spine from which transverse tubular elements extend. Usually these elements are pivotally held on one end of this spine. In and with a snapping action these elements are swung into extending position and are secured in detents formed in the spine. When in the desired transverse orientation the tubular elements are secured on this spine member. High winds as they pass by or buffet the mounted antenna tend to vibrate these elements. When the duration of vibration is prolonged one or more of the elements often break off. The loss of one or more elements affects the efficiency and effectiveness of this antenna. Replacement of these missing or broken elements is often difficult and expensive. The present invention provides an inexpensive device to inhibit such vibrations and includes a tubular plastic member which is secured to like oppositely disposed elements by plastic hook-like members. This plastic beam at its midlength has a threaded aperture formed to receive and retain a plastic screw which is turned to bring the extending or inner end of the screw into engagement with the longitudinal spine of the antenna. As this screw is turned, it brings the secured metal tubular elements into a tensioned condition. The element guard extends between midlength of the metal tubular elements as the screw engages the longitudinal spine of the antenna.
Abstract translation: 本发明涉及一种用于抑制现有或被安装的天线的振动的新颖且便宜的装置,例如提供用于与VHF,UHF,FM等一起使用的装置。 这些天线包括横向管状元件延伸的纵向金属轨道或脊柱。 通常这些元件可枢转地保持在该脊柱的一端。 在一个咬合动作中,这些元件摆动到延伸位置并被固定在脊柱中形成的棘爪中。 当处于期望的横向方向时,管状元件固定在该脊柱构件上。 大风经过或自动安装的天线倾向于振动这些元件。 当振动的持续时间延长时,一个或多个元件经常断开。 一个或多个元件的损耗会影响该天线的效率和有效性。 更换这些丢失或损坏的元素通常是困难和昂贵的。 本发明提供了一种抑制这种振动的廉价装置,并且包括通过塑料钩状构件固定到类似相对设置的元件的管状塑料构件。 该塑料束在其中间长度处具有螺纹孔,其形成为接收和保持塑料螺钉,该塑料螺钉被转动以使螺杆的延伸端或内端与天线的纵向脊线接合。 当该螺钉转动时,其将固定的金属管状元件带入张紧状态。 当螺钉与天线的纵向脊线接合时,元件防护件在金属管状元件的中间长度之间延伸。
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