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    • 84. 发明授权
    • Device for coating an optical fiber
    • 光纤涂层装置
    • US5588997A
    • 1996-12-31
    • US341477
    • 1994-11-17
    • Hans-Jurgen LyssonReiner BrodenHans-Detlef Leppert
    • Hans-Jurgen LyssonReiner BrodenHans-Detlef Leppert
    • B05C3/12C03C25/18B05C3/02
    • B05C3/12C03C25/18
    • A device for coating an optical fiber, for example a glass fiber drawn from a glass preform, comprises a housing (3) with a lengthwise bore (11), into which a nozzle holder (13) containing a receiving aperture (25) is press-fit. An inlet nozzle (33) and an outlet nozzle (43), through which the optical fiber (1) can pass, are press-fit into the receiving hole (25) of nozzle holder (13) at a distance from each other. A coating space for applying a coating material to the optical fiber (1) is located between the inlet nozzle (33) and the outlet nozzle (43). The press-fitting of the nozzles (33, 43) into the nozzle holder (13), and press-fitting the nozzle holder (13) into the housing, achieves better reproducibility of the nozzle (33, 43) positioning when the device is being assembled.
    • 一种用于涂覆光纤的装置,例如从玻璃预成型件拉制的玻璃纤维,包括具有纵向孔(11)的壳体(3),其中压入包含接收孔(25)的喷嘴保持器(13) -适合。 光纤(1)可以通过的入口喷嘴(33)和出口喷嘴(43)被压配合到彼此间隔一定距离的喷嘴保持器(13)的接收孔(25)中。 用于将涂料施加到光纤(1)的涂覆空间位于入口喷嘴(33)和出口喷嘴(43)之间。 喷嘴(33,43)压入喷嘴保持器(13)并将喷嘴保持器(13)压配合到壳体中时,实现了当装置为止时定位的喷嘴(33,43)的更好的再现性 正在组装。
    • 85. 发明授权
    • Tip holder/flow guide element for cross-head dies
    • 用于十字头模具的尖头支架/导流元件
    • US5540775A
    • 1996-07-30
    • US258540
    • 1994-06-10
    • James A. Milliman
    • James A. Milliman
    • B05C3/12C03C25/18B05C3/15
    • B05C3/12C03C25/18
    • A tip holder for assembly in a through axial bore of a cross-head die body to hold a die tip in a predetermined position and to control flow of a molten coating material about the die tip and filamentary member which is moved axially through the die for coating purposes. An annular groove is formed about the surface of the tip holder adjacent a radial bore in the body through which the molten material is introduced. In a first embodiment, the annular groove communicates through a plurality of axial grooves in the tip holder with an annular cavity through which the material flows to the die orifice through which the filamentary member and coating material exit the die body. In a second embodiment, the material flows from the annular groove over an annular lip at the forward end of the tip holder. Moreover, both the annular groove and lip are eccentric with respect to the central axis of the tip holder, and compound angles are provided on both the forward and rear sides of the lip, all cooperating to provide an evenly distributed flow of coating material about the cavity preparatory to being deposited on the wire.
    • 一种用于组装在十字头模具主体的贯穿轴向孔中的刀片保持器,用于将模具顶端保持在预定位置并控制熔模涂层材料围绕模头尖端的流动以及轴向移动通过模头的丝状部件 涂层目的。 围绕尖端保持器的表面形成环形槽,靠近主体中的径向孔,熔融材料通过该径向孔被引入。 在第一实施例中,环形槽通过尖端保持器中的多个轴向沟槽与环形空腔连通,材料通过该环形空腔流到模具孔口,丝状构件和涂层材料通过该孔口离开模具主体。 在第二实施例中,材料在尖端保持器的前端处从环形槽流过环形唇缘。 此外,环形槽和唇缘相对于尖端保持器的中心轴线都是偏心的,并且复合角度设置在唇缘的前侧和后侧上,全部配合以提供均匀分布的涂层材料流 准备沉积在电线上的空腔。
    • 89. 发明授权
    • Methods of and apparatus for coating optical fiber
    • 涂敷光纤的方法和装置
    • US4851165A
    • 1989-07-25
    • US92117
    • 1987-09-02
    • John A. Rennell, Jr.Carl R. Taylor
    • John A. Rennell, Jr.Carl R. Taylor
    • C03C25/10C03C25/12C03C25/18G02B6/44
    • C03C25/18
    • An optical fiber (21) which has been drawn from a preform (22) is moved into and through a chamber (38) of a housing. A source of vacuum is connected to the chamber to prevent the attachment of air pockets to the optical fiber as it is being moved through the chamber and through an opening of a die. The die includes a flow path (55) which is substantially normal to the path of travel of the optical fiber and the die opening is substantially larger than the diameter of the optical fiber. The thickness of the flow path in a direction along the path of travel is sufficiently small so as to prevent the recirculation of the coating material in the vicinity of the point of application to the optical fiber. Also, the fiber draw rate, the pressure of the coating material the direction of the flow path relative to the longitudinal axis of the optical fiber and the diameter of the die opening are such that a gap forms between the coating material and the die. That gap is allowed to be maintained because of the pressure differential between ambient atmosphere an the chamber. As a result, the coating material as it leaves the disc-like flow path and is directed toward the optical fiber is bounded by free surfaces instead of by solid surfaces in the immediate vicinity of where it is applied to the optical fiber. This prevents the development of shear fields and allows the diameter of the coated optical fiber to be varied.