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    • 2. 发明授权
    • Method and apparatus for making a loose tube fiber optic cable component
    • 制造松套管光缆部件的方法和装置
    • US5312499A
    • 1994-05-17
    • US963173
    • 1992-10-19
    • Rodney D. BolickMark A. Sigmon
    • Rodney D. BolickMark A. Sigmon
    • B29C47/02B29C47/28G02B6/44B29C47/10
    • B29C47/28B29C47/0014B29C47/0023B29C47/027G02B6/4483B29L2011/0075
    • Disclosed is an apparatus and method for making a loose tube buffered optical fiber, the apparatus comprising an extrusion crosshead having an inlet and exit port connecting a plastic flow passageway circumscribing another passageway in which there is disposed a grease injection unit having three concentrically disposed tubes, the first tube delimiting a path for optical fiber travel, the first and second tubes spaced apart from one another forming a travel path therebetween for jelly or grease-like hydrocarbon filling material and the third tube (circumscribing the first and second tube) forming a chamber at a terminal end portion, the chamber in communication with the travel paths of both the grease and optical fibers and in which the grease comes in contact with the optical fibers, the chamber being so disposed that the contact point of the grease and fibers is only after the grease and fibers have traveled a majority of the length of the grease injection unit.
    • 公开了一种用于制造松散管缓冲光纤的装置和方法,该装置包括一个挤出十字头,该挤压十字头具有一个入口和出口,该入口和出口连接一个围绕另一个通道的塑料流动通道,其中设有一个具有三个同心设置的管的润滑脂注入单元, 第一管限定光纤行进的路径,第一和第二管彼此间隔开,形成用于果冻或油脂状烃填充材料的行进路径,第三管(围绕第一和第二管)形成腔室 在末端部分,腔室与润滑脂和光纤的行进路径连通,并且润滑脂与光纤接触,腔室被设置成使润滑脂和纤维的接触点仅为 在润滑脂和纤维已经走过润滑脂注射单元的大部分长度之后。
    • 3. 发明授权
    • Apparatuses and methods for use in the making of a self-supporting fiber optic cable
    • 用于制造自支撑光缆的装置和方法
    • US06188821B1
    • 2001-02-13
    • US09102392
    • 1998-06-22
    • Warren W. McAlpineMark A. Sigmon
    • Warren W. McAlpineMark A. Sigmon
    • G02B644
    • G02B6/4484G02B6/4405G02B6/4411
    • Apparatus and method for making a self-supporting type fiber optic cable (10) having a messenger section (12) and a core section (14) connected by a web (18). An exemplary apparatus (20) includes a cable core tensioning apparatus (30), a messenger wire tensioning apparatus (40), and a cable tensioning apparatus (60). The cable tensioning apparatus (60) includes a messenger tensioner (61) having a profile with a tensioning recess (62) and a clearance recess (64). The tensioning recess (62) being operative to grip and to thereby apply tension to the messenger section (12), and the clearance recess (64) essentially frictionlessly accommodating the formation of undulations in the core section (14). In an exemplary method the undulations are formed in the core section as the cable progresses through tensioning apparatus (60) by maintaining an essentially decoupled relationship between the core section (14) and the clearance section (64) of the tensioning apparatus (60). Tensioning apparatus (60) can include at least one knife for forming windows in cable (10).
    • 用于制造具有通过网(18)连接的信使部分(12)和芯部分(14)的自支撑型光纤电缆(10)的装置和方法。 示例性装置(20)包括电缆芯张紧装置(30),消息线张紧装置(40)和电缆张紧装置(60)。 电缆张紧装置(60)包括具有张紧凹部(62)和间隙凹部(64)的轮廓的信使张紧器(61)。 所述张紧凹槽(62)可操作地夹持并且由此向所述信使部分(12)施加张力,并且所述间隙凹槽(64)基本上无摩擦地容纳所述芯部分(14)中的起伏的形成。 在一个示例性方法中,当电缆通过张紧装置(60)进入通过维持在芯部分(14)和张紧装置(60)的间隙部分(64)之间的基本上分离的关系时,波纹形成在芯部分中。 张紧装置(60)可以包括用于在电缆(10)中形成窗口的至少一个刀。