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    • 9. 发明授权
    • Self-supporting fiber optic cable having a support section with a non-uniform jacket
    • 自支撑光纤电缆,其具有带有不均匀护套的支撑部分
    • US06529663B1
    • 2003-03-04
    • US09628835
    • 2000-07-31
    • Donald R. ParrisMichael J. GimbletChristopher M. Quinn
    • Donald R. ParrisMichael J. GimbletChristopher M. Quinn
    • G02B644
    • G02B6/4429G02B6/4411G02B6/4422
    • An improved self-supporting fiber optic cable is provided that includes a cable section having at least one optical fiber and a jacket surrounding the at least one optical fiber, and a support section having at least one strength member extending in a lengthwise direction and an overlying jacket that includes a number of jacket segments spaced lengthwise along the at least one strength member. As a result of the lengthwise spacing of the jacket segments, portions of the at least one strength member are at least partially exposed. The jackets of the cable and support sections are connected, such as by an intermittent web. A method for manufacturing a fiber optic cable having a support section with an intermittent or semi-intermittent jacket is also provided which relies upon the periodic extrusion of extrudate about the at least one strength member to form the jacket segments that are spaced apart in a lengthwise direction along the at least one strength member. Alternatively, a thin coating of jacket material can exist between jacket segments.
    • 提供了一种改进的自支撑光纤电缆,其包括具有至少一个光纤的线缆部分和围绕该至少一根光纤的护套,以及支撑部分,其具有沿长度方向延伸的至少一个强度部件和上覆 护套,其包括沿着至少一个强度构件沿纵向间隔开的多个护套段。 由于护套段的长度间隔的结果,至少一个强度构件的部分至少部分暴露。 电缆和支撑部分的夹克连接,例如通过间歇网。 还提供了一种用于制造具有间歇或半间歇夹套的支撑部分的光缆的方法,其依赖于围绕所述至少一个强度构件的挤出物的周期性挤出以形成沿长度方向间隔开的护套段 方向沿着至少一个强度构件。 或者,套管材料的薄涂层可以存在于护套片段之间。
    • 10. 发明授权
    • Fiber optic cables with at least one water blocking zone
    • 具有至少一个防水区域的光纤电缆
    • US06463199B1
    • 2002-10-08
    • US09677222
    • 2000-09-29
    • Christopher M. QuinnDonald R. Parris
    • Christopher M. QuinnDonald R. Parris
    • G02B644
    • G02B6/4492G02B6/441G02B6/4429
    • A fiber optic cable comprises a jacket defining an interior passageway therethrough, at least one optical fiber disposed in the interior passageway of the outer jacket, and a water blocking zone having, for example, a solid polymer foam material contacting and surrounding at least one optical fiber over at least a portion of a length thereof and filling a space between at least one optical fiber and the inner wall of the cable. The invention is applicable to many different configurations of fiber optic cables, including those having one or more buffer tubes containing the optical fiber(s) as well as cables without any buffer tube. The optical fibers can be in loose and unbundled form, in bundled arrangements, or in ribbonized form. The water blocking zone preferably is relatively soft and resilient, and can be in the form of discrete foamed or non-foamed portions spaced apart along the length of the cable.
    • 光纤电缆包括限定穿过其中的内部通道的护套,设置在外护套的内部通道中的至少一根光纤,以及具有例如固体聚合物泡沫材料的防水区域,所述固体聚合物泡沫材料接触并包围至少一个光学 在其长度的至少一部分上的纤维,并且填充至少一个光纤和电缆的内壁之间的空间。 本发明可应用于许多不同结构的光纤电缆,包括那些具有一个或多个缓冲管的光缆,以及没有任何缓冲管的电缆。 光纤可以以松散和非捆绑的形式,捆绑布置或带状形式。 阻水区优选地相对柔软且具有弹性,并且可以是沿着电缆的长度间隔开的分立的泡沫或非发泡部分的形式。