Patents for May/June 2023

USPTO Wire & Cable Industry Patents United States Patent and Trademark Office (USPTO) as collected by the editors of WCTI for May.

Field Terminable Cable and Plug Assembly
US Patent 11626688
Published April 11, 2023
Inventors: Satish I. Patel, Roselle, IL, USA; Benjamin S. Novak, Lockport, IL, USA; Adam Sargis, Frankfort, IL, USA; Robert L. Fritz, Elwood, IL, USA; Scott E. Goska, Hazel Crest, IL, USA; and Gabriela R. Sims, Gary, IN, USA
Assignee: Panduit Corp., Tinley Park, IL, USA
A strain relief system for a cable inserted within has a main housing with an opening and a series of ramp features and a series of serrations on an interior surface. The system also has a rotating collar with an opening in line with the opening of the main housing. The rotating collar having a series of follower features configured to be inserted into the opening of the main housing such that when the rotating collar is rotated relative to the main housing, the follower features engage the ramp features to compress the cable inserted with the strain relief system. The rotating collar also having at least one ratcheting tab configured to engage the series of serrations of the main housing such has to provide a ratcheting function between the rotating collar and the outer housing.

Self-laminating Rotating Cable Marker with Breakaway Portion
US Patent 11626036
Published April 11, 2023
Inventors: Jack E. Caveney, North Palm Beach, FL, USA; David Scott Morrison, Cumming, GA, USA; and
Michael Scott Adams, Cumming, GA, USA
Assignee: Panduit Corp., Tinley Park, IL, USA
A self-laminating rotating cable marker label is constructed of a transparent film having a first adhesive area, an adhesive-free smooth area, and a second adhesive area. A print-on area forms one side of the transparent film, the print-on area adapted to receive indicia identifying the cable about which the marker label is applied. A perforation extends across the transparent film providing a line of separation of the transparent film. When wrapped around a cable, the second adhesive area overlies the print-on area such that the cable identifying indicia is visible through the transparent second adhesive area. As the transparent film is wrapped around the cable, the first adhesive area adheres to the cable. The remainder of the transparent film is rotated, breaking the perforation, whereby the smooth area of the film in contact with the cable provides smooth rotation of the label around the cable.

Method and Device for Producing A Cable
US Patent 11626217
www.uspto.gov
Published April 11, 2023
Inventor: Paulo Martins, Kitzingen, Germany
Assignee: Leon Bordnetz-Systeme GmbH, Kitzingen, Germany
A method and a device for producing a twisted line comprising at least two wires. The at least two wires are unwound from at least one take-off spool and are twisted in a twisting unit to form the twisted line, herein the twisting unit has a first roller and a second roller and the at least two wires are supplied to a twisting area between the two rollers and are twisted by turning the rollers in the same direction.

Oxide Superconducting Wire
US Patent 11621105
Published April 4, 2023
Inventor: Masaki Ohsugi, Sakura, Japan
Assignee: Fujikura Ltd., Tokyo, Japan
An oxide superconducting wire includes a superconducting laminate including an oxide superconducting layer disposed, either directly or indirectly, on a substrate, and a stabilization layer which is a Cu plating layer covering an outer periphery of the super conducting laminate. An average crystal grain size of the Cu plating layer is 3.30 μm or more and equal to or less than a thickness of the Cu plating layer.

Electric Cable for a Wind Turbine and Wind Turbine
US Patent 11619212
Published April 4, 2023
Inventor: Mahsa RafieeArashtnab, Brande, Denmark
Assignee: Siemens Gamesa Renewable Energy A/S, Brande, Denmark
Provided is an electric cable for a wind turbine, wherein the electric cable includes at least one cooling element) to cool the electric cable, wherein the cooling element protrudes from the surface of the electric cable.

Ribbed and Grooved Cable Having Embedded Strength Member with Water Blocking Coating
US Patent 11619796
Published April 4, 2023
Inventors: Sharun Kuhar, Gurgaon, India; Vikash Shukla, Gurgaon, India; Swapnil Sharma, Gurgaon, India;
and Kishore Sahoo, Gurgaon, India
Assignee: Sterlite Technologies Limited, Harayana, India
A ribbed and grooved fiber cable (100) includes a core with a plurality of optical fibers, a sheath (102) enveloping the core and one or more strength members (108) embedded in the sheath (102). The strength members (108) are coated with a water blocking coating material having at least one of an ultraviolet (UV) curable water swellable resin composition and a layer of ethylene acrylic acid (EAA). Particularly, the water blocking coating material applied over the strength members (108) has a thickness of 50±10 microns. The sheath (102) of the cable (100) has at least one of a plurality of ribs (104) and grooves (106) on an external surface of the sheath (102), and a plurality of ribs (104a) and grooves (106a) on an internal surface of the sheath (102). The plurality of ribs (104) have variable height.

Dielectric Predictable Break Load Aerial Drop Cable
US Patent 11619797
Published April 4, 2023
Inventors: Sashanka Some, Gurgaon, India; and Dnyaneshwar Wagh, Gurgaon, India
Assignee: Sterlite Technologies Limited, Haryana, India
The present invention discloses a dielectric predictable break load aerial drop cable comprising one or more optical transmission elements, a first layer surrounding the one or more optical transmission elements, a plurality of strength yarns surrounding the first layer, an outer sheath surrounding the plurality of strength yarns. In particular, the outer sheath has a plurality of strength members embedded in an equilateral position. Moreover, the dielectric predictable break load aerial drop cable breaks at a predefined break load with a neutral bending performance.

Differential Mode Electrical Cable to Reduce Sonar Towed Array Self-noise Electronically
US Patent 11621104
Published April 4, 2023
Inventor: Matthew M. Lesko, Elburn, IL, USA
A differential mode instrumentation cable for improving the signal integrity of audio signals in different environments including use of a sonar hydrophone being towed to the water behind a ship and the sonar hydrophone signal receiver aboard ship to improve the hydrophone signal receiver signal output clarity, reducing strumming cable noises, comprising a first triaxial cable and a second triaxial cable, placed side-by-side, and surrounded by waterproof cable material fr to prevent any water from reaching the first and second triaxial cable from end to end from the hydrophone to the signal receiver aboard ship and mounted together, said first coaxial cable and said second coaxial cable including a wired connection that includes an active driven shield buffer circuit in each triaxial cable having an inner conductor for voltage in from the positive polarity and minus polarity and the voltage out driven guard shield with series breakout resistor connected to the each triaxial inner shield.

Identification of Droplet Formation During Cable Burn Testing
Us Patent 11620810
Published April 4, 2023
Inventors: Robert Klares, Berlin, Germany; Kirsten Langfeld, Berlin, Germany; Thomas Meyer, Berlin,
Germany; Waldemar Stöcklein, Coburg, Germany; and Uwe Zymnossek, Frankfurt, Germany
Assignee: Corning Research & Development Corporation, Corning, NY, USA
A system (100) for the identification of the formation of a burning droplet (9) of a material of a fiber optic cable (3) during cable burn testing comprises a data processing device (11) for processing respective image data of a plurality of image samples of an image stream. The data processing device (11) is configured to execute at least a processing step of preprocessing each of the recorded image samples of the image stream to generate a respective preprocessed image sample for each of the recorded image samples such that areas of the recorded image samples disturbing the identification of burning droplets (9) are masked out in the respective preprocessed image sample, and a step of identifying a burning droplet (9) in each of the preprocessed image samples by evaluating a pixel color property of a pixel of
each preprocessed image sample.

Polymer Composition for Wire and Cable Applications with Advantageous Thermomechanical Behavior
and Electrical Properties
US Patent 11613633
Published March 28, 2023
Inventors: Per-Ola Hagstrand, Stenungsund, Sweden; Thomas Gkourmpis, Gothenburg, Sweden;
Antonios Gitsas, Linz, Austria; Mattias Andersson, Gothenburg, Sweden; and Christian Müller,
Gothenburg, Sweden
Assignee: Borealis AG, Vienna, Austria
The invention provides a polymer composition comprising a) a low-density polyethylene (LDPE); and b) a conjugated aromatic polymer. The invention also relates to cables comprising said polymer composition and the use of the polymer composition in the manufacture of an insulation layer of cable.

Precursor of Superconducting Wire and Method of Manufacturing Superconducting Wire
US Patent 11616188
Published March 28, 2023
Inventor: Kazuya Nishi, Tokyo, Japan; Takaaki Suzuki, Tokyo, Japan; and Hideki Tanaka, Tokyo, Japan
Assignee: Hitachi, Ltd., Tokyo, Japan
Proposed is a novel embedded structure for suppressing a disturbance in the cross-sectional shape and a non-uniform deformation of a metal member arising in a precursor when producing an MgB2 multicore wire material by a surface reduction process. This superconductive multi-core wire material
precursor is characterized by having: soft Cu and Fe pure metals disposed in the center; mixed powder elements, each comprising as a sheath material a metal such as Fe or Nb having a barrier effect preventing a reaction between Mg and Cu, the mixed powder elements being disposed in a form that surrounds the periphery of the soft metal serving as the central material; and disposed around these, an outer shell layer produced from a harder metal than the central material and the sheath material.

Continuous Extruder Process for Manufacturing Rheology-Modified Polyolefin for Cable Insulation Layer,
and Related Products
US Patent 11613045
Published March 28, 2023
Inventors: Qian Gou, Collegeville, PA, USA; Neil. W. Dunchus, Collegeville, PA, USA; and Bharat I.
Chaudhary, Collegeville, PA, USA
Assignee: Dow Global Technologies LLC, Midland, MI, USA
Rheology-modified, additive-containing ethylenic polymer compositions are prepared in a continuously operated extruder comprising first, second and third zones by a process comprising the steps of: mixing in the second zone of the extruder an ethylenic polymer and a high-temperature decomposing peroxide at a temperature such that the half-life of the peroxide is equal to or greater than one minute and for a sufficient period of time to modify the rheology of the ethylenic polymer to produce a rheology-modified, melted ethylenic polymer for transfer to the third zone of the extruder; and adding to the third zone one or more additives to the rheology-modified, melted ethylenic polymer to produce the rheology-modified, additive-containing ethylenic polymer.

Magnet Wire with Thermoplastic Insulation
US Patent 11615914
Published March 28, 2023
Inventors: Mohammad Mazhar Said, Arlington Heights, IL, USA; and Matthew E. Leach, Fort Wayne, IN,
USA
Assignee: Essex Furukawa Magnet Wire USA LLC, Atlanta, GA, USA
Magnet wire included extruded insulation formed from a blend of two or more different polymeric materials is described. A magnet wire may include a conductor and insulation formed around the conductor. The insulation may include at least one layer of extruded insulation formed from a blend of a first polymeric material and a second polymeric material different than the first polymeric material. The first polymeric material may include one of polyetheretherketone, polyaryletherketone, polyetherketoneketone, polyphenylsulfone, polyphenylene sulfide, or polybenzimidazole. The second polymeric material may include one of polyphenylsulfone, polyetherimide, polyethersulfone, polyphenylene sulfide, polycarbonate, or polyester.

Wire Rope, Sheave and Drum
US Patent 11608593
Published March 21, 2023
Inventors: Yukito Yamamoto, Tokyo, Japan; Takuya Katayama, Tokyo, Japan; and Shigeki Watanabe,
Tokyo, Japan
Assignee: Tokyo Rope Manufacturing Co., Ltd., Tokyo, Japan
An object of the present invention is to further improve upon the strength and durability of a wire rope. A wire rope has a core rope made of steel; a covering layer, which is made of a composite resin, covering the outer peripheral surface of the core rope; and multiple side strands, which are made of steel, wound on the outer peripheral surface of the core rope covered with the covering layer. The composite resin constituting the covering layer is obtained by blending cellulose nanofibers with polypropylene serving as a matrix.

Multi-Core Cable and Signal Transmission Path
US Patent 11610699
Published March 21, 2023
Inventors: Koki Hirano, Tokyo, Japan; Kazunori Sasaya, Tokyo, Japan; Takenori Taki, Tokyo, Japan;
Hidetoshi Kiyohara, Hitachi, Japan; and Masaki Kimura, Tokyo, Japan
Assignee: Hitachi Metals, Ltd., Tokyo, Japan
A multi-core cable includes a plurality of coaxial cables being arranged in parallel with each other, and a synthetic resin covering member that collectively covers the plurality of coaxial cables. Each coaxial cable includes a center conductor, an insulator covering an outer periphery of the center conductor, and a metal outer conductor covering an outer periphery of the insulator. The covering member holds the plurality of coaxial cables in such a manner that the plurality of coaxial cables are aligned side by side along a direction perpendicular to a longitudinal direction of the plurality of coaxial cables. At least a part of the outer conductors of the plurality of the coaxial cables respectively contacts the covering member.

Electric Wire, Cable, and Manufacturing Method of Electric Wire
US Patent 11610698
Published March 21, 2023
Inventors: Hideyuki Suzuki, Tokyo, Japan; Katsuya Iikai, Tokyo, Japan; and Takuya Oriuchi, Tokyo, Japan
Assignee: Hitachi Metals, Ltd., Tokyo, Japan
An electrical wire includes a conductor and an insulating layer that covers the conductor and that is
crosslinked. The insulating layer is a cross-linked product of a resin composition including (a) a base
polymer containing polyolefin and a compatibilizer, (b) a photoradical generator of 0.5 parts by mass or
more and 3 parts by mass or less relative to the 100 parts by mass of the base polymer, and (c) a reactive
monomer of 1 part by mass or more and 5 parts by mass or less relative to the 100 parts by mass of the
base polymer. A relative dielectric constant of the insulating layer is less than 2.5.

Electric Cable Comprising a Metal Layer
US Patent 11600404
Published March 7, 2023
Inventors: Nicolas Rousselet, Saint-Genis-Laval, France; Thierry Malvache, Antony, France; Jean-Pierre
Simonato, Sassenage, France; Caroline Celle, Firminy, France; Sonia Desousanobre, Saint Martin le
Vinoux, France; Sakina Yahiaoui, Vizille, France; Florence Masse, Saint Martin d’Uriage, France; and Lucie
Ordronneau, Villeurbanne, France
Assignee: Nexans, Courbevoie, France
An electric cable has at least one elongated electrical conductor (1), at least one electrically insulating
layer (2) surrounding the elongated electrical conductor (1), and at least one metal layer (3) surrounding
electrically insulating layer (2). The metal layer (3) has metal nanowires.

Steel Wire Descaling Device
US Patent 11596993
Published March 7, 2023
Inventor: Ruxue Fu, Zhejiang, China
Assignee: Zhejiang Mopper Environmental Technology Co., Ltd., Zhejiang, China
The invention relates to a steel wire descaling device. The device includes one or more first steel wire
descalers and one or more second steel wire descalers. A descaling roller for removing an oxide scale
from a surface of a steel wire is disposed on each of the first steel wire descaler and the second steel
wire descaler. The descaling roller of the first steel wire descaler is disposed inclinedly, the descaling
roller of the second steel wire descaler is disposed horizontally. By inclinedly brushing the steel wire by
using the first steel wire descaler and flatly brushing the steel wire by using the second steel wire
descaler, the combination of flat brushing and inclined brushing allows oxide scales to be from steel
wires without a blind spot.

Stranded Wire Contact for an Electrical Device and Method for Producing a Stranded Wire Contact
US Patent 11600433
Published March 7, 2023
Inventors: Yun Jiang, Neubiberg, Germany; and Karl Stoll, Germering, Germany
Assignee: TDK Electronics AG, Munich, Germany
An electrical device having a stranded wire contact. The device includes a stranded wire with individual
wires and a contact piece for electrical contacting of the stranded wire. The stranded wire contact is
produced by thermal diffusion bonding.

Cable
US Patent 11600403
Published March 7, 2023
Inventors: Yutaka Matsumura, Osaka, Japan; Shigeyuki Tanaka, Osaka, Japan; Taro Fujita, Osaka, Japan;
Takaya Kohori, Tochigi, Japan; and Masayuki Ishikawa, Tochigi, Japan
Assignee: Sumitomo Electric Industries, Ltd., Osaka, Japan
The cable according to one embodiment of the invention comprises: one or a plurality of core members,
each having a conductor and an insulation cover material covering the conductor; and a sheath layer
covering the one or the plurality of core members. The sheath layer comprises an inner sheath layer, and
an outer sheath layer covering the inner sheath layer. The inner sheath layer comprises a crosslinked
very low density polyethylene. The main component of the outer sheath layer is polyurethane. Relative to
100 parts by mass of resin component in the inner sheath layer, the very low density polyethylene
content is between 20 parts by mass and 100 parts by mass inclusive. The elastic modulus of the inner
sheath layer at 25°C. is between 5 MPa and 30 MPa inclusive.