公开(公告)号：US20140174136A1

公开(公告)日：2014-06-26

申请号：US14193397

申请日：2014-02-28

申请人： MARCO ANTONIO CAIATA ,  FRANCO COCCHINI ,  GIUSEPPE FERRI ,  ANDREA MAZZOTTI ,  ALESSANDRO ROSSI ,  ANTONIO SCHIAFFO

发明人： MARCO ANTONIO CAIATA ,  FRANCO COCCHINI ,  GIUSEPPE FERRI ,  ANDREA MAZZOTTI ,  ALESSANDRO ROSSI ,  ANTONIO SCHIAFFO

IPC分类号： C03B37/012

CPC分类号： C03B37/01242 ,  C03B23/047 ,  C03B37/0124 ,  C03B37/0126

摘要： Apparatus for applying traction to an elongate cylindrical element produced by fusion of an end portion of a preform of glass material, in which a traction device is capable of being connected to a portion of the elongate cylindrical element to provide traction of the elongate cylindrical element along an axis. A device for the rotation of the elongate cylindrical element applies a twist to the elongate cylindrical element about the axis simultaneously with the traction.

摘要翻译： 用于将牵引力施加到通过熔化玻璃材料预成型件的端部而产生的细长圆柱形元件的装置，其中牵引装置能够连接到细长圆柱形元件的一部分以提供细长圆柱形元件沿着 一个轴。 用于旋转细长圆柱形元件的装置在与牵引力同时围绕轴线对细长圆柱形元件施加扭曲。

公开(公告)号：US08322164B2

公开(公告)日：2012-12-04

申请号：US10568686

申请日：2003-08-29

申请人： Davide Sarchi ,  Sabrina Fogliani ,  Roberto Pata

发明人： Davide Sarchi ,  Sabrina Fogliani ,  Roberto Pata

IPC分类号： C03B37/025

CPC分类号： G02B6/02285 ,  C03B37/02745 ,  C03B37/032 ,  C03B2203/19 ,  C03B2203/36 ,  C03B2205/06

摘要： In a process for producing a low polarization mode dispersion optical fiber, which comprises the steps of drawing a glass preform into an optical fiber and of spinning, during drawing, the optical fiber about an optical fiber axis, the spinning is imparted according to a bidirectional and substantially trapezoidal spin function, which includes zones (P) of substantially constant amplitude (plateau) and zones of transition (T) where inversion of the spin direction takes place, wherein the extension (p) of the zones of substantially constant amplitude is greater than the extension (t) of the zones of transition, and the number of inversions of the direction of spin in a length of fiber of 20 m is at most two.

摘要翻译： 在制造低分散模式色散​​光纤的方法中，包括以下步骤：在拉丝期间将玻璃预成型件拉制成光纤并在拉丝期间围绕光纤轴线旋转光纤，根据双向 并且具有基本上梯形的自旋函数，其包括基本上恒定振幅（平台）的区域（P）和转移区域（T），其中发生自旋方向的反转，其中基本恒定幅度的区域的延伸部分（p）较大 比转移区域的延伸部分（t）长，并且光纤长度为20μm的旋转方向的反转次数为2个以下。

公开(公告)号：US08119193B2

公开(公告)日：2012-02-21

申请号：US11665993

申请日：2004-10-27

申请人： Ubaldo Vallauri ,  Francesco Portas

发明人： Ubaldo Vallauri ,  Francesco Portas

IPC分类号： B05D3/00 ,  B23P19/02

CPC分类号： H02G1/14 ,  H02G15/1826 ,  Y10T29/53657 ,  Y10T29/53683

摘要： A method of coating the junction area between elongated elements, in particular between electric cables. This method includes the steps of: arranging a rigid tubular support having two axially separable tubular halves; mounting an elastic tubular sleeve in an elastically radially expanded condition on an outer surface of the support; interposing a lubricating material between the support and sleeve; arranging a circumferentially continuous sealing element between the halves to prevent the lubricant from percolating between the halves; positioning the support around the junction area; and moving the halves apart from each other to enable the sleeve to collapse on the junction area. A device for coating the junction area between elongated elements and a method of making the device and a joint for electric cables.

摘要翻译： 一种在细长元件之间，特别是在电缆之间涂覆接合区域的方法。 该方法包括以下步骤：布置具有两个可轴向分离的管状半部的刚性管状支撑件; 将弹性管状套筒以弹性径向膨胀的状态安装在所述支撑件的外表面上; 在支撑件和套筒之间插入润滑材料; 在半部之间布置周向连续的密封元件，以防止润滑剂在半部之间渗透; 将支架定位在接合区域周围; 并使两半彼此分开，以使套筒能够在接合区域上折叠。 用于涂覆细长元件之间的接合区域的装置和制造该装置的方法和用于电缆的接头。

公开(公告)号：US07995886B2

公开(公告)日：2011-08-09

申请号：US11663758

申请日：2004-09-27

申请人： Massimo Pizzorno ,  Alessandro Ginocchio ,  Massimiliano Pavan ,  Davide Ceschiat

发明人： Massimo Pizzorno ,  Alessandro Ginocchio ,  Massimiliano Pavan ,  Davide Ceschiat

IPC分类号： G02B6/44 ,  G02B6/10 ,  G02B6/02 ,  B29C47/02 ,  H02G15/00

CPC分类号： G02B6/4494 ,  G02B6/441

摘要： A method for manufacturing an optical cable for communication includes at least one micromodule, said micromodule being blocked with respect to the propagation of water. The method includes the steps of providing at least one optical fiber; embedding the at least one optical fiber in a pseudoplastic filling compound having a viscosity of 3 Pa·s to 30 Pa·s, preferably 7 Pa·s to 25 Pa·s at a shear rate of 10 s−1 and at a temperature of 100° C., and a cross-over lower than 30 Hz, preferably 5 Hz to 25 Hz, at a temperature of 100° C.; and extruding a retaining element made of a thermoplastic polymeric composition around the at least one optical fiber so embedded in the filling compound to obtain a micromodule.

摘要翻译： 一种用于通信的光缆的制造方法包括至少一个微型模块，所述微模块相对于水的传播被阻挡。 该方法包括提供至少一个光纤的步骤; 将至少一根光纤埋入具有3Pa·s至30Pa·s的粘度的假塑性填充化合物中，优选7Pa·s至25Pa·s，剪切速率为10s-1，温度为 在100℃的温度下交叉低于30Hz，优选为5Hz至25Hz。 并且将由热塑性聚合物组合物制成的保持元件挤压在所述至少一根光纤周围，从而嵌入所述填充化合物中以获得微型组件。

公开(公告)号：US07927531B2

公开(公告)日：2011-04-19

申请号：US10499201

申请日：2001-12-21

申请人： Valter Castiglioni ,  Angelo Riella ,  Sergio Belli ,  Luca Balconi

发明人： Valter Castiglioni ,  Angelo Riella ,  Sergio Belli ,  Luca Balconi

IPC分类号： B29C47/00

CPC分类号： B29C47/28 ,  B29C47/0016 ,  B29C47/0808

摘要： An extrusion method and head for depositing by extrusion a polymeric material intended, in particular, for the production of cables includes a core and a coating layer arranged at a radially outer position with respect of the core. The method includes the steps of feeding the polymeric material in a feeding duct of the extrusion head and of conveying a part of the polymeric material towards an undercut extending in the extrusion head in proximity of an end of the feeding duct. The method provides a sealing force between a head body and a conveyor element of the extrusion head exerted by means of the pushing action exerted by the polymeric material in the undercut in a direction substantially perpendicular to the longitudinal axis of the head body.

摘要翻译： 用于通过挤出沉积聚合物材料的挤出方法和头部，特别是用于生产电缆的聚合物材料包括芯和相对于芯的径向外部位置布置的涂层。 该方法包括以下步骤：将聚合物材料输送到挤出头的进料管道中，并将聚合物材料的一部分朝着在挤出头部中延伸的靠近进料管道端部的底切输送。 该方法提供了头部本体和挤压头的传送器元件之间的密封力，该密封力是通过基本上垂直于头部主体的纵向轴线的方向上的底切部分中的聚合材料施加的推动作用施加的。

公开(公告)号：US07849713B2

公开(公告)日：2010-12-14

申请号：US10538899

申请日：2002-12-24

申请人： Antonio Collaro ,  Giuseppe Ferri ,  Alfonso Pannullo

发明人： Antonio Collaro ,  Giuseppe Ferri ,  Alfonso Pannullo

IPC分类号： C03B37/023 ,  C03B37/07

CPC分类号： G02B6/02271 ,  C03B37/0253 ,  C03B37/027 ,  C03B2203/22 ,  C03B2203/23 ,  C03B2203/29 ,  C03B2203/36 ,  C03B2205/40 ,  G02B6/02014 ,  G02B6/0228 ,  G02B6/03611 ,  G02B6/03644 ,  G02B6/03661 ,  G02B6/2551

摘要： A process for making a non-zero dispersion shifted optical fiber having low splice loss and low attenuation and to an optical fiber produced by this process. A reduction of the splice loss is observed with decreasing drawing tension. The optical fiber has a core region that includes three segments and an inner cladding segment, each having a maximum refractive index percent difference, Δdeltai %, i=0-3, the subscript i referring to a particular refractive index, the core segments being selected such that Δdelta0%>Δdelta2%>Δdelta1%≧0 and Δdelta2%>Δdelta3%≧0. Optical fibers exhibiting low splice loss were drawn at tensions not larger than 150 g, preferably not larger than 100 g.

摘要翻译： 用于制造具有低接合损耗和低衰减的非零色散位移光纤以及由该工艺产生的光纤的工艺。 随着拉伸张力的降低观察到剪切损失的减少。 光纤具有芯区域，其包括三个区段和内包层区段，每个区段具有最大折射率百分比差异，Dgr; deltai％，i = 0-3，下标i表示特定折射率，核心段 被选择为使得＆Dgr; delta0％>＆Dgr; delta2％>＆Dgr; delta1％≥0和＆Dgr; delta2％>＆Dgr; delta3％≥0。 在不大于150g，优选不大于100g的拉伸下拉伸显示出低接头损耗的光纤。

公开(公告)号：US07816607B2

公开(公告)日：2010-10-19

申请号：US12268602

申请日：2008-11-11

申请人： Sergio Belli ,  Alberto Bareggi ,  Paolo Veggetti ,  Luca Balconi ,  Paolo Bossi

发明人： Sergio Belli ,  Alberto Bareggi ,  Paolo Veggetti ,  Luca Balconi ,  Paolo Bossi

IPC分类号： H01B7/00

CPC分类号： H01B13/141 ,  H01B7/1895 ,  H01B9/00 ,  H01B13/142

摘要： A process for manufacturing a multipolar cable having at least one pair of cores, each core having at least one conductive element and at least one layer of electrical insulation in a position which is radially external to the at least one conductive element. The process includes the steps of: a) assembling the at least one pair of cores so as to form an assembled element having a plurality of interstitial zones between the cores, and b) depositing by co-extrusion an expandable polymeric material in a position which is radially external to the cores so as to fill the interstitial zone and to form a filling layer of substantially circular transverse cross section, and at least one containment layer of polymeric material in a position radially external to the filling layer. The multipolar cable obtained from the process.

摘要翻译： 一种用于制造具有至少一对芯的多极电缆的方法，每个芯具有至少一个导电元件和在至少一个导电元件的径向外部位置的至少一层电绝缘层。 该方法包括以下步骤：a）组装所述至少一对芯，以便形成在所述芯之间具有多个间隙区的组装元件，以及b）通过共挤出可膨胀聚合物材料沉积在 在芯部的径向外侧，以填充间隙区域并形成基本上圆形的横截面的填充层，以及至少一个在填充层的径向外侧的位置处的聚合材料的容纳层。 从该过程获得的多极电缆。

公开(公告)号：US07814767B2

公开(公告)日：2010-10-19

申请号：US09986622

申请日：2001-11-09

申请人： Giacomo Stefano Roba ,  Massimo Nutini ,  Franco Veronelli

发明人： Giacomo Stefano Roba ,  Massimo Nutini ,  Franco Veronelli

IPC分类号： C03B37/023 ,  C03B37/07

CPC分类号： H05B6/20 ,  C03B37/0124 ,  C03B37/029 ,  C03B2205/64 ,  C03B2205/70 ,  C03B2205/80 ,  C03B2205/81 ,  C03B2205/82 ,  C03B2205/92 ,  C03B2205/96 ,  C03B2205/98 ,  Y02P40/57

摘要： An induction furnace capable of drawing large diameter preforms of up to 130 mm is described. The induction furnace has top and bottom chimneys surrounding the entire preform during operation of the furnace with an inert conditioning gas which is introduced into the top chimney and flows downward through the furnace body and bottom chimney without significant turbulence. A distributor ring inside the top chimney redirects flow from a circumferential direction to a downward direction. The top chimney also includes a resilient seal to releasably hold the top of the preform. The bottom chimney has a smoothly decreasing cross-sectional area preventing turbulence at the furnace exit. The furnace insulation is preferably a rigid self-supporting graphite cylinder. A method of drawing large diameter preforms either to an optical fiber or to a preform of smaller diameter using such a furnace is also described.

摘要翻译： 描述了能够拉伸高达130mm的大直径预制件的感应炉。 感应炉在炉子运行期间具有围绕整个预制件的顶部和底部烟囱，其中惰性调节气体被引入到顶部烟囱中并且向下流过炉体和底部烟囱而没有显着的湍流。 顶部烟囱内的分配器环将流动从圆周方向重新定向到向下的方向。 顶部烟囱还包括弹性密封件以可释放地保持预制件的顶部。 底部烟囱具有平滑减小的横截面积，防止炉出口处的湍流。 炉绝缘体优选为刚性自支撑石墨圆筒。 还描述了使用这种炉将大直径预成型件拉到光纤或更小直径的预成型件的方法。

公开(公告)号：US07764855B2

公开(公告)日：2010-07-27

申请号：US10530489

申请日：2002-10-07

申请人： Giacomo Stefano Roba ,  Lidia Terruzzi ,  Sabrina Fogliani ,  Luca Castellani ,  Emiliano Resmini ,  Raffaella Donetti ,  Lisa Grassi

发明人： Giacomo Stefano Roba ,  Lidia Terruzzi ,  Sabrina Fogliani ,  Luca Castellani ,  Emiliano Resmini ,  Raffaella Donetti ,  Lisa Grassi

IPC分类号： G02B6/02 ,  G02B6/00 ,  C08G18/67

CPC分类号： C09D175/16 ,  C03C25/106 ,  C08G18/672 ,  C08G18/48

摘要： An optical fiber having: a) a glass portion; and b) at least one protective coating layer disposed to surround the glass portion, the protective coating layer having a modulus of elasticity value between −40° C. and +60° C. between 5 MPa and 600 MPa, preferably not higher than 500 MPa, more preferably not higher than 450 MPa and much more preferably not higher than 300. Preferably the protective coating layer is a single protective coating layer which is disposed in contact with the glass portion.

摘要翻译： 一种光纤，具有：a）玻璃部分; 和b）至少一个围绕玻璃部分设置的保护涂层，所述保护涂层的弹性模量值在-40℃至+ 60℃之间，在5MPa至600MPa之间，优选不高于500 更优选不高于450MPa，更优选不高于300.优选地，保护涂层是与玻璃部分接触设置的单个保护涂层。

公开(公告)号：US07645408B2

公开(公告)日：2010-01-12

申请号：US10532537

申请日：2002-10-30

申请人： Ubaldo Vallauri ,  Francesco Portas

发明人： Ubaldo Vallauri ,  Francesco Portas

IPC分类号： B29C45/14 ,  H02G5/06

CPC分类号： H02G15/184 ,  B29C39/10 ,  H02G1/14 ,  H02G1/145 ,  Y10S174/33

摘要： A process for manufacturing an elastomeric sleeve of a joint for electrical cables. The sleeve has an electric field-control element, an electrical insulating element surrounding the electric field-control element, and at least a semiconductive element having two stress control screens. The process includes providing the electric field-control element and the two stress control screens on a supporting element; introducing the supporting element into a mold provided for molding the electrical insulating element; filling with the electrical insulating material the space radially external to the electric field-control element and the stress control screens, the step of filling being carried out during the step of introducing; curing the electrical insulating material to obtain the electrical insulating element of the elastomeric sleeve. An apparatus for carrying out the process for manufacturing is also disclosed.

摘要翻译： 一种用于制造用于电缆的接头的弹性体套筒的方法。 套管具有电场控制元件，围绕电场控制元件的电绝缘元件和至少具有两个应力控制屏幕的半导体元件。 该过程包括将电场控制元件和两个应力控制屏幕提供在支撑元件上; 将支撑元件引入用于模制电绝缘元件的模具中; 在电气控制元件和应力控制屏幕的径向外部填充电绝缘材料，在引入步骤期间执行填充步骤; 固化电绝缘材料以获得弹性体套筒的电绝缘元件。 还公开了一种用于执行制造工艺的装置。