公开(公告)号：US10217546B2

公开(公告)日：2019-02-26

申请号：US15760791

申请日：2015-09-25

Applicant: PRYSMIAN S.p.A. ,  POLITECNICO DI MILANO

Inventor： Pamela De Martino ,  Ehsan Fallahmohammadi ,  Attilio Citterio ,  Lidia Terruzzi

IPC: H01B7/02 ,  H01B7/28 ,  C23F11/14 ,  H01B7/282 ,  C08K5/3472 ,  H01B3/18 ,  H01B3/30 ,  H01B3/42

Abstract: A power cable having a metallic electrical conductor surrounded by one or more semiconductive layer and more or more insulating layer, wherein the cable has at least one metallic element made of aluminum, having a corrosion inhibitor provided in direct contact with the at least one metallic element made of aluminum.

公开(公告)号：US11442238B2

公开(公告)日：2022-09-13

申请号：US17130568

申请日：2020-12-22

Applicant: Prysmian S.p.A.

Inventor： Ehsan Fallahmohammadi ,  Clint Nicholaus Anderson ,  Luca Giorgio De Rai

IPC: G02B6/44

Abstract: An optical-fiber ribbon includes optical fibers (e.g., reduced-diameter optical fibers) arranged in parallel within optical-fiber units, wherein at least one adjacent pair of optical-fiber units is separated by a longitudinal adhesive-free spacing for a portion of the optical-fiber ribbon's length. Typically, each adjacent pair of optical-fiber units is separated by an adhesive-free spacing for a respective portion of the optical-fiber assembly's longitudinal length. In an exemplary embodiment, longitudinal adhesive-free spacings effectively increase the width of an optical-fiber ribbon formed of reduced-diameter optical fibers so that the optical-fiber ribbon achieves a more conventional optical-fiber ribbon width, thereby facilitating mass-fusion splicing using standard splicing equipment.

公开(公告)号：US20220196944A1

公开(公告)日：2022-06-23

申请号：US17130589

申请日：2020-12-22

Applicant: Prysmian S.p.A.

Inventor： Ehsan Fallahmohammadi ,  Clint Nicholaus Anderson ,  Luca Giorgio De Rai

IPC: G02B6/44

Abstract: An optical-fiber ribbon includes intermittent gaps along its longitudinal length in which no bonding material is present across the width of the optical-fiber ribbon. These intermittent gaps without bonding material (e.g., adhesive beads) help to reduce or eliminate bonding-material interference as the optical-fiber ribbon is positioned within an alignment chuck during preparations for mass-fusion splicing.

公开(公告)号：US20220155540A1

公开(公告)日：2022-05-19

申请号：US17591866

申请日：2022-02-03

Applicant: Prysmian S.p.A.

Inventor： Ehsan Fallahmohammadi ,  Clint Nicholaus Anderson ,  Brian G. Risch ,  Andrea Terry ,  John R. Sach ,  Jeffrey Scott Barker ,  Ryan Truong

IPC: G02B6/44

Abstract: An optical-fiber ribbon having excellent flexibility, strength, and robustness facilitates separation of an optical fiber from the optical-fiber ribbon without damaging the optical fiber's glass core, glass cladding, primary coating, secondary coating, and ink layer, if present.

公开(公告)号：US11169342B2

公开(公告)日：2021-11-09

申请号：US16998175

申请日：2020-08-20

Applicant: Prysmian S.p.A.

Inventor： Ehsan Fallahmohammadi ,  Clint Nicholaus Anderson ,  Brian G. Risch ,  Andrea Terry ,  John R. Sach ,  Jeffrey Scott Barker

IPC: G02B6/44 ,  C03C25/1065 ,  G02B6/02

Abstract: An optical-fiber ribbon having excellent flexibility, strength, and robustness includes optical fibers having a sacrificial, outer release layer that facilitates separation of an optical fiber from the optical-fiber ribbon without damaging the optical fiber's glass core, glass cladding, primary coating, secondary coating, and ink layer, if present.

公开(公告)号：US11131816B2

公开(公告)日：2021-09-28

申请号：US16629785

申请日：2017-07-11

Applicant: Prysmian S.p.A.

Inventor： Ehsan Fallahmohammadi ,  John R. Sach ,  Ben H. Wells

IPC: G02B6/44

Abstract: The invention relates to an optical fiber ribbon assembly comprising* a plurality of adjacent optical fiber ribbons extending in a longitudinal direction and arranged in a plane, each of the optical fiber ribbons comprising a plurality of optical fibers mutually bonded by a matrix material, the fibers extending in the longitudinal direction and arranged in the plane; said plurality of adjacent ribbons forming at least one set of two adjacent ribbons having an interstice between said two adjacent ribbons and * a bonding material, forming intermittent bonds at the interstice between the two adjacent ribbons of a set, thereby bonding the two adjacent ribbons of the set. The invention also relates to a method of producing such an optical fiber ribbon assembly.

公开(公告)号：US20200379198A1

公开(公告)日：2020-12-03

申请号：US16998175

申请日：2020-08-20

Applicant: Prysmian S.p.A.

Inventor： Ehsan Fallahmohammadi ,  Clint Nicholaus Anderson ,  Brian G. Risch ,  Andrea Terry ,  John R. Sach ,  Jeffrey Scott Barker

IPC: G02B6/44 ,  C03C25/1065 ,  G02B6/02

Abstract: An optical-fiber ribbon having excellent flexibility, strength, and robustness includes optical fibers having a sacrificial, outer release layer that facilitates separation of an optical fiber from the optical-fiber ribbon without damaging the optical fiber's glass core, glass cladding, primary coating, secondary coating, and ink layer, if present.

公开(公告)号：US10782495B2

公开(公告)日：2020-09-22

申请号：US16247008

申请日：2019-01-14

Applicant: Prysmian S.p.A.

Inventor： Ehsan Fallahmohammadi ,  Clint Nicholaus Anderson ,  Brian G. Risch ,  Andrea Terry ,  John R. Sach ,  Jeffrey Scott Barker

IPC: G02B6/44 ,  C03C25/1065 ,  G02B6/02

Abstract: An optical-fiber ribbon having excellent flexibility, strength, and robustness includes optical fibers having a sacrificial, outer release layer that facilitates separation of an optical fiber from the optical-fiber ribbon without damaging the optical fiber's glass core, glass cladding, primary coating, secondary coating, and ink layer, if present.

公开(公告)号：US20190250347A1

公开(公告)日：2019-08-15

申请号：US16247008

申请日：2019-01-14

Applicant: Prysmian S.p.A.

Inventor： Ehsan Fallahmohammadi ,  Clint Nicholaus Anderson ,  Brian G. Risch ,  Andrea Terry ,  John R. Sach ,  Jeffrey Scott Barker

IPC: G02B6/44 ,  C03C25/1065 ,  G02B6/02

CPC classification number: G02B6/4404 ,  C03C25/1065 ,  G02B6/02033 ,  G02B6/441 ,  G02B6/4429 ,  G02B6/448 ,  G02B6/4488

Abstract: An optical-fiber ribbon having excellent flexibility, strength, and robustness includes optical fibers having a sacrificial, outer release layer that facilitates separation of an optical fiber from the optical-fiber ribbon without damaging the optical fiber's glass core, glass cladding, primary coating, secondary coating, and ink layer, if present.

公开(公告)号：US12001070B2

公开(公告)日：2024-06-04

申请号：US18139521

申请日：2023-04-26

Applicant: Prysmian S.p.A.

Inventor： Ehsan Fallahmohammadi ,  Clint Nicholaus Anderson ,  Brian G. Risch ,  Andrea Terry ,  John R. Sach ,  Jeffrey Scott Barker ,  Ryan Truong

IPC: G02B6/44

CPC classification number: G02B6/4403

Abstract: An optical-fiber ribbon having excellent flexibility, strength, and robustness facilitates separation of an optical fiber from the optical-fiber ribbon without damaging the optical fiber's glass core, glass cladding, primary coating, secondary coating, and ink layer, if present.