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1.发明授权Transmission line hanger, a method of attaching the hanger and the resulting assembly 失效传输线悬挂器，一种连接衣架和所得组件的方法
公开(公告)号：US5794897A
公开(公告)日：1998-08-18
申请号：US635755
申请日：1996-04-22
CPC分类号： H02G7/053 , Y10T24/44034 , Y10T403/1608 , Y10T403/7141
摘要： A hanger for attaching a length of a transmission line, such as, a coaxial cable or a waveguide to a supporting structure, such as, a crossbar on an antenna tower, includes two gripping elements. The elements have posts and openings to facilitate aligning of them with respect to each other. The posts and openings are arranged so that the posts in one element fit into the openings of the other element to help align the two elements when they are placed around a transmission line. Once aligned, the two elements are brought toward each other until they snap together to form a clamping structure which loosely grips the transmission line. The clamping structure can then be slid to the desired location on the transmission line. A bolt or a screw is then inserted through the aligned bolt or screw openings in the two elements and through the supporting structure. Finally, the bolt or screw is tightened to securely clamp the elements to the transmission line and to attach the resulting hanger to the supporting structure.
摘要翻译： 用于将诸如同轴电缆或波导的传输线的一段长度连接到诸如天线塔上的横杆的支撑结构的悬挂器包括两个夹持元件。 这些元件具有柱和开口以便于它们相对于彼此对准。 柱和开口被布置成使得一个元件中的柱嵌入到另一个元件的开口中，以在它们被放置在传输线周围时帮助对准两个元件。 一旦对准，两个元件彼此相向，直到它们卡在一起以形成松散地夹住传输线的夹紧结构。 然后可以将夹紧结构滑动到传输线上的所需位置。 然后将螺栓或螺钉穿过两个元件中的对准的螺栓或螺钉孔并穿过支撑结构。 最后，螺栓或螺丝被拧紧以将元件牢固地夹紧到传输线并将所得到的衣架附接到支撑结构。
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公开(公告)号：US20080242754A1
公开(公告)日：2008-10-02
申请号：US12136582
申请日：2008-06-10
申请人： Michael F. Champagne , Richard Gendron , Caroline Vachon , Vijay K. Chopra , Hugh R. Nudd , Sitaram Rampalli
发明人： Michael F. Champagne , Richard Gendron , Caroline Vachon , Vijay K. Chopra , Hugh R. Nudd , Sitaram Rampalli
CPC分类号： C08J9/127 , C08J2203/06 , C08J2203/142 , C08J2323/02 , C08L23/06 , C08L23/0815 , C08L23/10 , C08L2203/14 , C08L2666/06
摘要： The invention relates to a low loss foam composition and cable, such as a coaxial cable. The foam composition is formed by heating an olefinic polymer, such as a high density polyethylene, medium density polyethylene, low density polyethylene, linear low density polyethylene, polypropylene, or a combination thereof, into a molten state composition, optionally with a nucleating agent. The molten mixture is extruded under pressure through a die with a blowing agent comprising an atmospheric gas, such as carbon dioxide, nitrogen or air, and a co-blowing agent selected from hydrofluorocarbons, hydrochlorofluorocarbons, or perfluoro compounds, such as HFC-134a. The cable is formed by extruding the foam composition onto a signal carrying conductor and sheathing the foam-coated signal carrying conductor in an appropriate conducting shield.
摘要翻译： 本发明涉及低损耗泡沫组合物和电缆，例如同轴电缆。 泡沫组合物通过加热烯烃聚合物如高密度聚乙烯，中密度聚乙烯，低密度聚乙烯，线性低密度聚乙烯，聚丙烯或其组合形成，可任选地与成核剂一起加入到熔融组合物中。 熔融混合物在压力下通过包含大气气体如二氧化碳，氮气或空气的发泡剂和选自氢氟碳化合物，氢氯氟烃或全氟化合物如HFC-134a的共发泡剂在模具中挤出。 电缆通过将泡沫组合物挤出到信号承载导体上并将泡沫涂覆的信号承载导体覆盖在适当的导电屏蔽中而形成。
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公开(公告)号：US06649841B2
公开(公告)日：2003-11-18
申请号：US09990105
申请日：2001-11-21
申请人： Vijay K. Chopra , Hugh R. Nudd , James A. Krabec
发明人： Vijay K. Chopra , Hugh R. Nudd , James A. Krabec
IPC分类号： H01B718
CPC分类号： H01B11/1878 , H01B11/1808 , H01B11/1839
摘要： A corrugated coaxial cable including a core with at least one inner conductor and a highly expanded polymeric foam dielectric surrounding the inner conductor. This coaxial cable has a corrugated outer conductor closely encapsulating the foam dielectric. The corrugated coax cable is dimensioned to provide the cable with a velocity of propagation of greater than 90% of the speed of light.
摘要翻译： 波纹状同轴电缆，包括具有至少一个内部导体的芯和围绕内部导体的高度膨胀的聚合物泡沫电介质。 该同轴电缆具有密封地封装泡沫电介质的波纹状外导体。 波纹同轴电缆的尺寸设计成为电缆提供大于光速90％的传播速度。
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公开(公告)号：US4800351A
公开(公告)日：1989-01-24
申请号：US95015
申请日：1987-09-10
申请人： Sitaram Rampalli , Hugh R. Nudd
发明人： Sitaram Rampalli , Hugh R. Nudd
CPC分类号： H01Q13/203
摘要： A radiating cable of the foam dielectric type is provided with increased flame-retardant capabilities by provision of an inert barrier tape between an apertured, corrugated outer conductor and the external jacket surrounding the conductor. The barrier tape is composed of non-halogenated, self-extinguishing insulating material and is wrapped over the outer conductor in such a way as to completely cover the radiating apertures disposed thereupon. The barrier tape prevents the melting and bubbling of the dielectric foam outwardly through the radiating slots into penetrating contact with the external jacket when the cable is subjected to high-intensity flames, without significantly affecting the transmission characteristics of the cable.
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