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    • 3. 发明授权
    • Method of impregnating a cable
    • 浸渍电缆的方法
    • US4374870A
    • 1983-02-22
    • US13979
    • 1979-02-22
    • Kurt K. SandgrenHans V. L. Selving
    • Kurt K. SandgrenHans V. L. Selving
    • B05C3/12H01B20060101H01B13/32B05D5/12
    • B05C3/12H01B13/323
    • A method of impregnating a cable with a water impenetrable and water repellent sealing material comprising passing the cable axially through a pipe having open ends such that the pipe and cable form an annular gap along the length of the pipe. The gap is relatively thin compared to the diameter of the cable. A heated flowable sealing material is injected under pressure into the gap at an intermediate position between the open ends of the pipe so that the sealing material will flow inwardly into the cable during passage thereof through the pipe while the excess material travels axially along the cable in the gap and freely flows axially outwards from the ends of the pipe for collection and recirculation. The solidified filling material forms a solid barrier protecting the cable against penetration of water.
    • 一种用水不透水和防水密封材料浸渍电缆的方法,包括使电缆轴向穿过具有开口端的管,使得管和电缆沿着管的长度形成环形间隙。 与电缆的直径相比,间隙相对较薄。 加热的可流动的密封材料在压力下在管道的开口端之间的中间位置处被注入到间隙中,使得密封材料在其通过管道的过程中将向内流入电缆,同时多余的材料沿着电缆沿轴线行进 间隙并从管道的端部轴向向外自由地流动以用于收集和再循环。 固化的填充材料形成固体屏障,保护电缆免受水的侵入。
    • 10. 发明授权
    • Apparatus for manufacturing waterproof cable
    • 制造防水电缆的装置
    • US3876487A
    • 1975-04-08
    • US38867173
    • 1973-08-15
    • WESTERN ELECTRIC CO
    • GARRETT CARL EUGENEKINSLEY JR WILLIAM HENRYMOODY LARRY DEAN
    • H01B13/32B05C1/00
    • H01B13/323
    • Successive sections of a cable core having twisted pairs of insulated conductors stranded together are moved axially longitudinally through a series of in-line chambers having interconnecting dies of an apparatus with facilities for the pressure application of a heated waterproofing compound having a jelly-like consistency into the interstices between the stranded pairs of conductors. The apparatus is designed to direct the compound inwardly radially of the core after which a flow path of the compound is established into an upstream direction relatively longitudinally of the advancing cable core to more completely fill the interstices of the completed core. Provisions are made for cooling the cable core both prior to the filling thereof to limit the movement upstream of the compound and subsequent to the filling of the core to solidify and render self-sealing the compound. Subsequently, the successive sections of the compound filled core are advanced through various stations whereat a core wrap and sheath are applied thereto together with additional applications of the waterproofing compound. A plastic jacket is extruded about the sheath and cooler prior to taking up of the successive sections of the jacketed cable onto a take-up reel.