公开(公告)号：US20180292625A1

公开(公告)日：2018-10-11

申请号：US15575712

申请日：2015-05-28

Applicant: Prysmian S.p.A.

Inventor： Ian Dewi LANG ,  Lee Anthony SPICER ,  Martin Vincent DAVIES

IPC: G02B6/44

Abstract: An optical cable includes an optical module which includes a strength member, a plurality of optical fibers arranged about the strength member, the optical fibers being arranged substantially on a circumference concentric with the strength member, and a retaining element arranged about the plurality of optical fibers.

公开(公告)号：US20200233165A1

公开(公告)日：2020-07-23

申请号：US16815294

申请日：2020-03-11

Applicant: Prysmian S.p.A.

Inventor： Ian Dewi LANG ,  Lee Anthony SPICER ,  Martin Vincent DAVIES

IPC: G02B6/44

Abstract: An optical cable comprises a group of optical modules. Each of the optical modules comprises a strength member, a plurality of optical fibers arranged about the strength member, the plurality of optical fibers being arranged substantially on a circumference concentric with the strength member, and a retaining element arranged about the plurality of optical fibers. The strength member is covered by a coating, and the plurality of optical fibers are at least partly embedded within the coating. The optical cable comprises an outer sheath around the group of optical modules. The optical cable does not have a central strength member.

公开(公告)号：US20190222014A1

公开(公告)日：2019-07-18

申请号：US16331569

申请日：2016-09-14

Applicant: Prysmian S.p.A.

Inventor： Ian Dewi LANG ,  Paul John ROBERTS

IPC: H02G7/10 ,  H02G3/04 ,  G02B6/44

CPC classification number: H02G7/10 ,  G02B6/4422 ,  G02B6/443 ,  G02B6/4432 ,  G02B6/4433 ,  H01B9/005 ,  H01B11/007 ,  H02G3/0487

Abstract: It is disclosed a figure of eight cable comprising a first cable element comprising a first core enclosed by a first outer sheath, a second cable element comprising a second core enclosed by a second outer sheath and a web joining the first and second outer sheaths so as to provide the cable with a major plane of symmetry X which comprises the longitudinal axes of the first and second cable elements. The cable also comprises at least one strength member embedded within the first or second outer sheath. All the strength members of the cable are substantially located on the major plane of symmetry X of the cable.

公开(公告)号：US20160161697A1

公开(公告)日：2016-06-09

申请号：US14906955

申请日：2013-07-29

Applicant: PRYSMIAN S.P.A.

Inventor： Ian Dewi LANG ,  Paul John ROBERTS ,  Martin Vincent DAVIES ,  Ralph SUTEHALL

IPC: G02B6/44

CPC classification number: G02B6/4495 ,  G02B6/4413 ,  G02B6/447 ,  G02B6/4482

Abstract: An optical cable includes an optical core and sheath enclosing the optical core. The optical core includes a number of optical units having respective colors and being wound about a longitudinal axis of the cable. The sheath includes at least one non opaque longitudinal section through which a sequence of colors of the optical units is visible from outside the cable. The color sequence acts as an identifier for the cable. The cable may therefore be easily identified (e.g. amongst other cables laid down within the same duct) by a simple visual inspection of the cable's inner structure through the non opaque section(s) of its external sheath.

Abstract translation: 光缆包括封装光学芯的光芯和护套。 光学芯包括多个具有相应颜色的光学单元，并围绕电缆的纵向轴线缠绕。 护套包括至少一个不透明的纵向部分，通过该部分可以从电缆外部看到光学单元的一系列颜色。 颜色序列作为电缆的标识符。 因此，可以通过其外部护套的不透明部分对电缆的内部结构的简单目视检查，容易地识别电缆（例如，铺设在同一管道内的其它电缆中）。

公开(公告)号：US20210118592A1

公开(公告)日：2021-04-22

申请号：US17254049

申请日：2018-06-19

Applicant: PRYSMIAN S.P.A.

Inventor： Richard John PENNELL ,  Ian Dewi LANG ,  Daniel François DE VILLIERS ,  Andrew WYNN

IPC: H01B7/22

Abstract: An armoured power cable (10) comprises a cable core (11) and an armour layer (21) comprising a plurality of armouring wires (22) laid around the cable core (11), wherein at least 10% of the armouring wires (22) are wavy wires (23) having a zig-zag shape laying on the outer surface of the cable core (11).

公开(公告)号：US20160274324A1

公开(公告)日：2016-09-22

申请号：US15037512

申请日：2013-11-29

Applicant: PRYSMIAN S.P.A.

Inventor： Ralph SUTEHALL ,  Martin DAVIES ,  Nathan PADDICK ,  Paul ROBERTS ,  Ian Dewi LANG ,  Mark Richard MASON

IPC: G02B6/44

CPC classification number: G02B6/4438 ,  G02B6/4433 ,  G02B6/4464 ,  G02B6/4486

Abstract: An optical fiber unit for air-blown installations includes a number of optical conductors, a first layer of resin material, a second layer of resin material radially outer to the first layer of resin material and a sheath of a thermoplastic material, wherein the second layer of resin material has a secant modulus higher than a secant modulus of the first layer of resin material and wherein the sheath of thermoplastic material is over and in close contact with the second layer of resin material.

Abstract translation: 用于吹风装置的光纤单元包括多个光导体，第一树脂材料层，第一树脂材料层径向外侧的第二树脂材料层和热塑性材料的护套，其中第二层 的树脂材料具有高于第一层树脂材料的正割模量的割线模量，并且其中热塑性材料的护套在第二层树脂材料上方并且紧密接触。

公开(公告)号：US20200183112A1

公开(公告)日：2020-06-11

申请号：US16628372

申请日：2017-07-11

Applicant: Prysmian S.p.A.

Inventor： Ralph SUTEHALL ,  Martin Vincent DAVIES ,  Ian Dewi LANG

IPC: G02B6/44

Abstract: An optical cable comprising an optical core and an external sheath surrounding the optical core, wherein the external sheath comprises an inner layer circumferentially enclosing the optical core and an outer layer circumferentially enclosing the inner layer and comprising at least one longitudinal cavity accessible from outside the external sheath and extending through at least a portion of the outer layer thickness. The inner and outer layers of the external sheath are made of a first material having a first tensile strength, while the cavities in the outer layer are filled with a second material having a second tensile strength lower than the first tensile strength.

公开(公告)号：US20180011273A1

公开(公告)日：2018-01-11

申请号：US15537761

申请日：2014-12-23

Applicant: PRYSMIAN S.P.A.

Inventor： Ian Dewi LANG ,  Paul John ROBERTS

IPC: G02B6/44

CPC classification number: G02B6/4433 ,  G02B6/441 ,  G02B6/4413 ,  G02B6/4429 ,  G02B6/4482 ,  G02B6/4486

Abstract: An optical cable includes an optical module which includes first optical fibers and a first retaining element arranged about the first optical fibers. The module also includes second optical fibers arranged about the first retaining element, the second optical fibers being arranged on at least one circumference concentric with the first retaining element. The module also includes a second retaining element arranged about the second optical fibers, which is also substantially coaxial with the first retaining element. This optical module with coaxial retaining elements and fibers has a particularly high fiber density, while preserving the possibility to uniquely identify all the fibers.

公开(公告)号：US20160202435A1

公开(公告)日：2016-07-14

申请号：US14906975

申请日：2013-07-29

Applicant: PRYSMIAN S.P.A.

Inventor： Ian Dewi LANG ,  Paul John ROBERTS ,  Martin Vincent DAVIES ,  Ralph SUTEHALL

IPC: G02B6/44

CPC classification number: G02B6/443 ,  G02B6/4427 ,  G02B6/4475 ,  G02B6/4495

Abstract: An optical cable includes an optical core and an external sheath surrounding the optical core. The external sheath includes a first material having a first, higher fracture toughness and a second material having a second, lower fracture toughness. The first and second materials are arranged so that the second, lower fracture toughness material is accessible from outside the cable along at least one longitudinally extending area of the sheath outer surface. For accessing the optical core of the cable, a short longitudinal cut, namely, few centimetres, is made with a blade in the accessible second, lower fracture toughness material. Then, its cut edges are pulled apart by hand. The pulling force causes the lower fracture toughness material to fracture, thereby propagating the initial short cut longitudinally along the sheath through its whole thickness.

Abstract translation: 光缆包括光芯和围绕光芯的外护套。 外护套包括具有第一，较高断裂韧性的第一材料和具有第二较低断裂韧性的第二材料。 第一和第二材料被布置成使得第二下部断裂韧性材料沿着护套外表面的至少一个纵向延伸的区域可从电缆的外部进入。 为了访问电缆的光纤芯，在可接近的第二，较低的断裂韧性材料中用一个刀片制成短的纵向切割，即几厘米。 然后用手将其切割边缘拉开。 拉力导致较低的断裂韧性材料断裂，从而沿着护套纵向传播其初始短切整个厚度。