Patents for November/December 2023

USPTO Wire & Cable Industry Patents as compile by the editors of WCTI for November 2023.

Methods For Bonding Stranded Cable Subunits To Central Member
US Patent 11791067
Published October 17, 2023
Inventors: David Ralph Maack, Horseheads, NY, USA; Lars Kristian Nielsen, Hickory, NC, USA; James
Arthur Register, III, Hickory, NC, USA; and William Taylor Rowell, Hickory, NC, USA
Assignee: Corning Research & Development Corporation, Corning, NY, USA
Bundled cables and methods for preparing bundled cable are disclosed herein. In the method, a
plurality of subunits is wound about a central member. The subunits include a subunit jacket made of
a first thermoplastic composition and has a first outer surface, and the central member includes a
central member jacket made of a second thermoplastic composition and has a second outer surface.
A metal element is provided at an interface of the second outer surface and the first outer surface of
the subunits. The metal element is heated such that at least one of the first thermoplastic composition
or the second thermoplastic composition forms bonds with the other of the first thermoplastic
composition or the second thermoplastic composition.

Grommet and Wire Harness
US Patent 11791069
Published October 17, 2023
Inventors: Hirotaka Kiyota, Shizuoka, Japan; Masaru Kiuchi, Shizuoka, Japan; Takeshi Onoda, Shizuoka,
Japan; and Junya Kato, Shizuoka, Japan Assignee: Yazaki Corporation, Tokyo, Japan
A grommet includes a fitting body causing a circumferential edge portion of a through hole provided
in a wall body to be fitted into a fitting groove provided in an outer wall, and a first cylinder and a
second cylinder causing a harness body to be extracted through the cylinder. The fitting body includes
a cylindrical portion, a plurality of ribs rising from an outer circumferential wall surface of the cylindrical portion and disposed on the outer circumferential wall surface at equal intervals in a
circumferential direction, and a first support portion and a second support portion provided for each
of the ribs. The first support portion and the second support portion project from the outer
circumferential wall surface to be high enough to suppress elastic deformation of the rib in the
circumferential direction toward the outer circumferential wall surface.

Hydrocarbon Leak Detection Cable
US Patent 11788917
Inventor: Donold M. Raymond, Fort Collins, CO, USA
Assignee: Raymond & Lae Engineering, Inc., Fort Collins, CO, USA
Disclosed are embodiments of hydrocarbon leak detection cables that utilize time domain
reflectometry to indicate the location of changes in impedance in a hydrocarbon leak detection cable.
In addition, an embodiment of a hydrocarbon leak detection optical fiber is disclosed.

Carbon Nanotube Wire
US Patent 11780731
Published October 10, 2023
Inventor: Sawa Sakai, Tokyo, Japan
Assignee: Furukawa Electric Co., Ltd., Tokyo, Japan
The present disclosure relates to a carbon nanotube wire includes a carbon nanotube aggregate
constituted of a plurality of carbon nanotubes. In the plurality of carbon nanotubes, a mean length of
the plurality of carbon nanotubes is not larger than 150 μm, a CV value of the mean length is not
smaller than 0.40, a mean diameter of the plurality of carbon nanotubes is smaller than 4 nm, a CV
value of the mean diameter is not smaller than 0.18 and a proportion of carbon nanotubes with
lengths not smaller than 3 μm is not less than 60%.

Measurement Device and Method for Measuring an Advancement of a Cable
US Patent 11781853
Published October 10, 2023
Inventor: Johannes Wiese, Immenstadt-Eckarts, Germany
Assignee: IPEK International GmbH, Sulzberg, Germany
A measuring device is provided for measuring an advancement of a cable of a sewer cleaning and/or
sewer inspection system. A rotatably mounted magnet is designed such that the advancement of the
cable can cause rotations of the at least one rotatably mounted magnet, wherein the magnet follows a
movement of the cable in the radial direction during advancement of the cable. A corresponding
method is also provided.

Cabling Method of Superconducting Flat Wires
US Patent 11783968
Published October 10, 2023
Inventors: Makoto Takayasu, Lexington, MA, USA; and Vyacheslav Solovyov, Rocky Point, NY, USA
Assignees: Massachusetts Institute of Technology, Cambridge, MA, USA; and Brookhaven Technology
Group, Inc., Glen Cove, MA, USA
A structure and method provide cables of high-temperature superconducting flat tape and/or filament
wires, with a small bending diameter. A cable has a former having cross section that includes a
rectangle having rounded ends (i.e., an obround), and the flat tape is wound around the surface of the
former at an angle to minimize bending. The former surface may have raised helical ribs or lowered
grooves to provide tape registration in multi-layer configurations. Tape may be wound from a spool
onto the former under tension, and cut with a laser cutter to produce fine filaments immediately
before winding. The former may be slit longitudinally to prevent loop eddy currents and reduce AC
losses. The wound cable may be jacketed to provide a cable-in-conduit conductor (CICC), and coolant
channels may be provided in the jacket or in the former.

Differential Signal Transmission Cable
US Patent 11783964
Published October 10, 2023
Inventor: Hiroshi Ishikawa, Tokyo, Japan
Assignee: Proterial, Ltd., Tokyo, Japan
A differential signal transmission cable includes: an insulating electric wire having a pair of conductive
wires and an insulating layer covering the pair of conductive wires; a shield tape wound around an
outer periphery of the insulating electric wire; a first tape wound around an outer periphery of the
shield tape and having a first resin covering layer; and a second tape wound around an outer
periphery of the first tape and having a second covering layer. The second covering layer is made of a
high softening point material having a softening point that is higher than a softening point of the first
resin covering layer.

Flammability of Heating Cable
US Patent 11778700
Published October 3, 2023
Inventor: Sirarpi B. Jenkins, Menlo Park, CA, USA
Assignee: nVent Services GmbH, Schaff hausen, Switzerland
Embodiments of the invention provide a selfregulating heating cable. The cable includes a primary
jacket including a first low-smoke, zero halogen material. The cable also includes a braid surrounding
the primary jacket. The cable also includes a final jacket surrounding the braid and comprising a
second low-smoke, zero halogen material. The final jacket is formed to the braid during an extrusion
process in order to create a mated connection between the final jacket and the braid.

Moisture Resistant Seal for Electrical Cable Assemblies
US Patent 11769609
Published September 26, 2023
Inventor: Sergio Corona, Fontana, CA, USA
Assignee: DSM&T Company Inc., Fontana, CA, USA
A waterproof seal for electrical assemblies wherein an outer sheath of an electrical cable is removed
to expose the wires and the insulation is removed from the wires to form a window of exposed
electrical conductor, the electrical conductors being maintain apart from each other and contained in
a cover that may comprise a connector, an epoxy applied to the electrical conductors to fill in all the
space in and around the electrical conductors and the cover to form a waterproof seal that prevents
water from wicking past the waterproof seal via an interior of the electrical cable.

Non-Foam Polyolefin Compositions for Wire and Cable Coating
US Patent 11767419
Published September 26, 2023
Inventors: Saswati Pujari, Collegeville, PA, USA; Manish Talreja, Collegeville, PA, USA; and Mohamed
Esseghir, Collegeville, PA, USA
Assignee: Dow Global Technologies, LLC, Midland, MI, USA
A melt blended composition comprising, in weight percent (wt %) based upon the weight of the
composition: (A) 55 to 94.99 wt% of a thermoplastic polymer, (B) 5 to 44.99 wt% of a moisture curable
polymer and (C) 0.01 to 5 wt% of a moisture condensation catalyst exhibits enhanced rheological and
mechanical properties as compared to a composition alike in all aspects save for the presence of a
moisture curable polymer.

Threading Die for Cold-Drawing a Metal Wire
US Patent 11766707
Published September 26, 2023
Inventor: Davide Vassena, Malgrate, Italy
Assignee: Vassena Filiere S.r.l., Malgrate, Italy
A threading die (100) for cold-drawing a metal wire (4) is described; the threading die comprises a hole
(103) for the inlet of the wire to be drawn and the hole comprises a conical part (106) for drawing the
metal wire and a truncated-cone shaped part (105) which precedes the conical part in the advance
path of the metal wire and wherein no decrease in the diameter of the metal wire occurs; the base
with the greater diameter (111) of the truncated-cone shaped part precedes the base with the shorter
diameter (112) in the advance path of the metal wire.

Cable
US Patent 11763962
Published September 19, 2023
Inventor: Shigeo Hiramatsu, Kasama, Japan
Assignee: Junkosha Inc., Kasama, Japan
An insulating cable having a conductor and an insulator configured by a plurality of resin layers on the
conductor, wherein the plurality of resin layers contain the same kind of fluorine resin, a difference in
refractive index between a resin layer having the largest refractive index and a resin layer having the
smallest refractive index among the plurality of resin layers is 0.03 or less, a layer thickness of an
outermost resin layer of the insulator is 0.03 mm or less and a deviation (coefficient of variation CV) in
thickness of the insulator in a cross-section perpendicular to a longitudinal direction of the cable is
0.035 or less.

Power Cable
US Patent 11763963
Published September 19, 2023
Inventors: Young Eun Cho, Seoul, South Korea; Gi Joon Nam, Seoul, South Korea; Min Sang Cho, Seoul,
South Korea; and Sue Jin Son, Anyang-Si, South Korea
Assignee: LS Cable & System Ltd., Anyang-si, South Korea
Provided is a power cable, and particularly, to an ultra-high-voltage power cable of 45 to 600 kV.
Specifically, the present invention relates to a power cable, which is eco-friendly and includes an
insulating layer formed of an insulating material having not only high heat resistance and mechanical
strength but also high flexibility, bendability, impact resistance, cold resistance, installability,
workability, etc., which are in tradeoff with heat resistance and mechanical strength, and of which the
lifespan, flexibility and installability can be additionally improved through precise control of a
thickness of the insulating layer according to characteristics of the insulating material, thereby
enhancing workability.

Tungsten Wire and Tungsten Product
US Patent 11761065
Published September 19, 2023
Inventors: Tomohiro Kanazawa, Osaka, Japan; Naoki Kohyama, Osaka, Japan; Yoshihiro Iguchi, Osaka,
Japan; and Yui Nakai, Osaka, Japan
Assignee: Panasonic Intellectual Property Management Co., Ltd., Osaka, Japan
A tungsten wire is a tungsten wire containing tungsten or a tungsten alloy, a diameter of the tungsten
wire is at most 100 μm, and a total number of torsional rotations to breakage per length of 50 mm of
the tungsten wire is greater than or equal to 250×exp(−0.026×D) when a tension that is 50% of a
breakage tension of the tungsten wire is applied as a load, D denoting the diameter of the tungsten
wire.

Wire Harness
US Patent 11763960
Published September 19, 2023
Inventors: Takuji Iwama, Yokkaichi, Japan: Kotaro Tagami, Tokyo, Japan; Hiroaki Ota, Tokyo, Japan: and
Masataka Ohashi, Tokyo, Japan
Assignees: Sumitomo Wiring Systems, Ltd.; Mie, Japan; and Honda Motor Co., Ltd., Tokyo, Japan
A wire harness includes a first electric wire member including a first flexible wire and a hard wire
electrically connected to the first flexible wire, a second electric wire member including a second
flexible wire, and a tubular member through which the first and second electric wire members extend.
The wire harness also includes a tubular holder that is attached to a longitudinal end portion of the
tubular member and holds the first and second electric wire members therein. The holder has a first
housing recess that is located in an inner surface of the holder and houses the second electric wire
member.

Coupled Power and Control Cable
US Patent 11756705
Published September 12, 2023
Inventors: Randy D. Kummer, Villa Rica, GA, USA; and Scotty Joe Ledbetter, Bowdon, GA, USA
Assignee: Southwire Company, LLC, Carrollton, GA, USA Energy and a control signal may be provided
using a coupled power and control cable. The coupled power and control cable may comprise a power
cable, a control cable and an overall jacket. The power cable may be connected between a switch and
a fixture and may provide energy to the fixture from the switch. The control cable may be connected
between the control circuit and the fixture and may provide the control signal to the fixture from the
control circuit. The power cable and the control cable may be disposed beneath the overall jacket.

Method of and Device for Manufacturing Rubber Coated Twisted Wire Cord
US Patent 11753767
Published September 12, 2023
Inventor: Satoru Nishio, Hiratsuka, Japan
Assignee: The Yokohama Rubber Co., Ltd., Tokyo, Japan
In a method of manufacturing a rubber coated twisted wire cord, when an outer circumferential
surface of a twisted wire cord that is moving from an unreeling unit to a winding unit is coated with
unvulcanized rubber extruded by a rubber extruder, by a coating unit disposed between the unreeling
unit and a winding unit, in a state of additional tension being imparted on the moving twisted wire
cord by a tension imparting unit disposed at a nearby position on an upstream side from the coating
unit in a moving direction of the twisted wire cord, the unvulcanized rubber coats the outer
circumferential surface of the twisted wire cord in this state to continuously manufacture a rubber
coated twisted wire cord.

Cable Having a Coating Layer Made of a Recycled Polymer Material
US Patent 11756701
Published September 12, 2023
Inventors: Gustof Jonsson, Dals Långed, Sweden; and Kristoffer Berglund, Borås, Sweden
Assignee: Prysmian S.p.A., Milan, Italy
A cable contains a core including a transmissive element and a coating layer made of a coating
material. The coating material contains, with respect to the total weight of polymeric materials present
in the composition, (i) 70% to 95% by weight of a recycled linear low density polyethylene (r-LLDPE);
and (ii) 5 to 30% by weight of an ethylene-vinyl acetate copolymer (EVA). The EVA may be added to the
r-LLDPE or, alternatively, be already contained in the r-LLDPE as a result of previous LLDPE use. The
cable may further contain a skin layer placed around and in direct contact with the coating layer based
on r-LLDPE.

Portable Charging Light-Emitting Cable for New Energy Vehicles
US Patent 11756706
Published September 12, 2023
Inventors: Zhi Huang, Foshan, China; and Zhenjiang Qu, Foshan, China
Assignee: Foshan Jiepin Toy Industrial Co., Ltd., Foshan, China
The present invention provides a portable charging light-emitting cable for new energy vehicles,
including power configuration wires, a signal wire, electroluminescent wires, a filling layer and an
outer protective sleeve. The power configuration wires are evenly arranged around the signal wire. At
least more than two electroluminescent wires are mutually helically twisted with the power
configuration wires in the same number of groups around an outer wall of the signal wire into a cable
shape. Each electroluminescent wire is arranged between two adjacent power configuration wires.
According to the present invention, the electroluminescence technology is incorporated into
lightemitting charging cables. While charging, cables emit light evenly, which is suitable for charging
observation at night, and rich colors are provided to play a warning role to prevent accidents. During
the light-emitting process, light-emitting wires do not generate any heat, and energy consumption is
extremely low.

Silane Functional Stabilizers for Extending Long-Term Electrical Power Cable Performance
US Patent 11749422
Published September 5, 2023
Inventors: Glen J. Bertini, Fox Island, WA, USA; David C. Busby, Midland, MI, USA; Ramanathan
Ravichandran, Suffern, NY, USA; and Miles J. Hutchings, Scarsdale, NY, USA
Assignee: Novinium, LLC, Kent, WA, USA
Provided are methods for extending the life of in-service electrical cable having polymeric insulation,
comprising injecting a dielectric enhancement fluid composition into the cable, wherein the
composition comprises: (a) one or more organoalkoxysilane functional additives (voltage
stabilizerbased, hindered amine light stabilizer (HALS)-based, and/or UV absorber-based); and (b) a
catalyst suitable to catalyze hydrolysis and condensation of (a), the injected composition providing for
rapid initial permeation of (a) into the insulation and extended retention of subsequent condensation
products of (a) in the insulation. Additionally provided are innovative silyl functional ferrocenes (e.g.,
containing a ferrocene moiety and a silyl function hydrolysable to silanol) having utility as functional
voltage stabilizing additives in the methods.
Hollow-Core Fiber Cable and Method of Manufacturing the Same US Patent 11747552
Published September 5, 2023
Inventors: Michael Joseph Cataletto, Palatine, IL, USA; and Scott Walker Snopek, Fox Lake, IL, USA
Assignee: Scientel Wireless LLC, Lombard, IL, USA
The invention generally relates to optical fibers, and, more particularly, to hollow-core optical fibers
and cables for use in high-speed data transmission, including transmission of telecommunications
data, and methods of manufacturing such hollowcore optical fibers and cables.

USB Transmission Cable Structure
US Patent 11735337
Published August 22, 2023
Inventor: James Cheng Lee, La Habra, CA, USA
A USB cable structure includes a cable body and a plurality of wires. The cable body extends a length
along an axial direction and forms an inner space, and the inner space forms an elliptical cross-section
in the radial section of the cable body perpendicular to the axial direction. The plurality of wires are
arranged in the elliptical inner space of the cable body, and the diameter of the wire can be increased
by the enlarged elliptical inner space to reduce the attenuation of the transmission signal, thereby
extending the length of the transmission cable to transmit the signal to a longer distance without the
assistance of the attenuation compensation chip.