Patents for September 2023

Patents as compiled by the editors of WCTI for September 2023.

Magnet Wire with Corona Resistant Polyimide Insulation
US Patent 11728068
Published August 15, 2023
Inventors: Matthew Leach, Fort Wayne, IN, USA; James J. Connell, Fort Wayne, IN, USA; Allen Roe
Guisinger, Huntertown, IN, USA; Allan R. Knerr, Fort Wayne, IN, USA; Frederick Marshall McFarland, Fort
Wayne, IN, USA; Tamanna Ferdous McFarland, Fort Wayne, IN, USA; and Mohammad Mazhar Said, South
Barrington, IL, USA
Assignee: Essex Furukawa Magnet Wire USA LLC, Atlanta, GA, USA
Magnet wire with corona resistant enamel insulation may include a conductor and a multi-layer
insulation system formed around the conductor. The insulation system may include a basecoat formed
from a first polymeric enamel insulation. A midcoat formed from a second polymeric enamel insulation
may be formed around the basecoat, and the second polymeric enamel insulation may include a filler
dispersed in a base polyimide material. The filler may include between 20% and 80% by weight of silica
dioxide and between 20% and 80% by weight of titanium dioxide. Additionally, the insulation system may
include a topcoat formed from third polymeric enamel insulation formed around the midcoat.

Flame Retardant Fiber Optic Cable with Halogen Free Sheath for Blowing Applications
US Patent 11726283
Published August 15, 2023
Inventors: Michael Alexander Heinz, Berlin, Germany; and Ravinder Kumar Kinnera, Bogotá, Columbia
Assignee: Corning Research & Development Corporation, Corning, NY, USA
Embodiments of the disclosure relate to an optical fiber cable. The optical fiber cable includes a subunit
having a first interior surface and a first exterior surface. The first interior surface defines a central bore
along a longitudinal axis of the optical fiber cable. At least one optical fiber is disposed within the central
bore of the subunit, and a plurality of strengthening yarns is disposed around the subunit. A cable sheath
disposed around the plurality of strengthening yarns. The cable sheath has a second interior surface and
a second exterior surface. The second exterior surface defines an outermost surface of the optical fiber
cable. The cable sheath includes from 55% to 68% by weight of a mineral-based flame retardant additive
and from 35% to 45% by weight of a polymer blend. The polymer blend includes a co-polyester or copolyether and a polyolefin or a polyolefin elastomer.

Fiber-Optic Cable and Method of Manufacture
US Patent 11726282
Published August 15, 2023
Inventors: Mark Messer, St. Johns, FL, USA; and Kack Edger Sutherland, Everett, WA, USA
www.uspto.gov
Assignee: Carlisle Interconnect Technologies, Inc., St. Augustine, FL, USA
A fiber optic cable includes an optical fiber element including a core and cladding layer. A strength
member layer is positioned over the optical fiber element and includes a layer of fiber elements
composed of at least 25% high temperature fiber material. An outer jacket layer is positioned over the
strength member layer and is formed of a highly flame-resistant material.

Coaxial Cable
US Patent 11728069
Published August 15, 2023
Inventors: Takeyasu Nakayama, Ueda, Japan; Hiroto Imamura, Ueda, Japan; and Satoshi Yamazaki, Ueda,
Japan
Assignee: Totoku Electric Co., Ltd., Tokyo, Japan
A coaxial cable 10 includes a hollow-core-body 1 having an integral structure of thermoplastic resin
including an inner annular portion 2 that insulation-coats an inner conductor 12, a plurality of rib
portions 3 that radially extend from the inner annular portion 2, and an outer annular portion 4 that is
connected to outer ends of the rib portions 3; three or more gap portions 5 surrounded by the inner
annular portion 2, the rib portions 3, and the outer annular portion 4; and outer side reinforcing portions
7 being formed on both sides of an outer end in the rib portion 3, in which a size ratio of a minimum
value W1 of a rib width in the rib portion 3 and a maximum value W2 of the rib width in the rib portion 3
is within a range of 1:1.6 to 1:3.0.

Multisensing Optical Fiber Cable
US Patent 11714245
Published August 1, 2023
Inventors: Josep Maria Martin Regalado, Barcelona, Spain; Ester Castillo Lopez, Barcelona, Spain; and
Veronica Iglesias Rodriguez, Barcelona, Spain
Assignee: Prysmian S.p.A., Milan, Italy
Disclosed is an optical cable for distributed sensing. The optical cable comprises a first metal tube with at
least two optical fibers loosely arranged therein and a second metal tube with at least two tight buffered
optical fibers tightly arranged within an inner surface of the second metal tube. A third metal tube having
an inner surface collectively surrounds and operatively contacts the first metal tube and said second
metal tube. At least one of the first metal tube and the second metal tube is fixed by means of an
adhesive compound to the inner surface of the third metal tube.

Machine Line and Method of Annealing Multiple Individual Aluminum and Copper Wires in Tandem With
a Stranding Machine for Continuous Operation
US Patent 11713501
Published August 1, 2023
Inventor: Michael Marshall, Richmond Hill, Ontario, Canada
Assignee: Roteq Machinery Inc., Concord, Ontario
An apparatus and method for continuous operation for the production of conductors that include
twisted or stranded wires or filaments includes supply payoff for providing a plurality of strands that
have been work hardened. The wires or strands are annealed in line with the payoff and subsequently
cooled by a chiller in line with the annealer for cooling the annealed strands output from the annealer to
a predetermined temperature. A strander in line with the annealer and cooler or chiller is provided for
imparting at least one twist to the annealed and cooled strands. Speed control, for example a dancer, is
provided in line between the cooler and the strander for adjusting and controlling the speed or velocity
of the strands moving along the line to maintain a speed compatible with the take up speed of the
strander. The predetermined temperature is selected to be the ambient operating temperature of the
strander for copper or aluminum cable.

MC Cable with Tearable Assembly Tape
US Patent 11715583
Published August 1, 2023
Inventors: Paul Reis, New Bedford, MA, USA; David Campbell, Bristol, RI, USA; Peter Lafreniere,
Mattapoisett, MA, USA; and Paulo da Moura, Dorchester, MA, USA
Assignee: AFC Cable Systems, Inc., New Bedford, MA, USA
Disclosed is an armored cable assembly including a core having a notched assembly tape about a
plurality of conductors. A metal sheath surrounds the core.

Coaxial Cable and Cable Assembly
US Patent 11715584
Published August 1, 2023
Inventors: Hiromitsu Kuroda, Tokyo, Japan; Tamotsu Sakurai, Tokyo, Japan; Keisuke Fujito, Tokyo, Japan;
Yoshiki Nakade, Hitachi, Japan; Detian Huang, Tokyo, Japan; and Hideki Nonen, Tokyo, Japan
Assignee: Proterial, Ltd., Tokyo, Japan
A coaxial cable is composed of a conductor, an insulator around the conductor, a shield layer around the
insulator, and a sheath around the shield layer. The shield layer includes a lateral winding shielding
portion with metal wires helically wrapped around the insulator, and a batch plating portion covering the
lateral winding shielding portion. The shield layer includes a joining portion where adjacent metal wires
are joined with each other with the batch plating portion at a gap between the adjacent metal wires, and
inner peripheral portions where the metal wires are not being covered with the batch plating portion and
plating layers are exposed. The joining portion is provided between adjacent inner peripheral portions.
When an elemental analysis is performed in any analysis region having an area of 0.015 mm2 or more
and 0.300 mm2 or less in an insulator-side surface of the shield layer which is stripped from the
insulator, an area of a chlorine present region where chlorine is present in the analysis region is 5% or
less of an area of the analysis region.

Wire Release Mechanism
US Patent 11713144
Published August 1, 2023
Inventor: Mark Vaughn, Neosho, MO, USA
Assignee: Accent Wire Holdings LLC, Tomball, TX, USA
A wire release mechanism for securing an end of a wire during a wire tying cycle. The wire release
mechanism may include a wire release portion having an engaging surface and the wire release portion
may be movable between an open and closed position.

Wire Feeder Assembly
US Patent 11712746
Published August 1, 2023
Inventor: Andrew Kostecki, Mooresville, NC, USA
A wire feeder assembly of the type generally associated with an electric arc welding machine including a
driveshaft in rotatable communication with an individually servo motor at one end and a worm gear
assembly at the other end is provided. Due to the assembly’s slim design, a series of assemblies can be
deployed on a metal plate cladding machine spaced approximately 4″ apart, which facilitates the
construction of previously unattainable welding patterns.

Deflectable Torque Cable for Delivery of Medical Devices
US Patent 11701491
Published July 18, 2023
Inventors: Philip Osterbauer, Wyoming, MN, USA; Brian Perszyk, Shoreview, MN, USA; and Michael P.
Meyer, Minnetrista, MN, USA
Assignee: St. Jude Medical, Cardiology Division, Inc., St. Paul, MN, USA
A delivery cable for delivering a medical device and a delivery device including the same are described
herein. The delivery cable includes a flexible inner core, an outer coil surrounding at least a portion of the
flexible inner core, and a pull wire disposed between the flexible inner core and the outer coil, the pull
wire configured to deflect a distal deflectable portion of the delivery cable upon manipulation thereof.
Methods of making the delivery cable and methods of using the delivery cable to deploy a medical device
are also described herein.

Assembly of an Electric Cable with a Cable Terminal
US Patent 11705647
Published July 18, 2023
Inventors: Abdelaaziz Elmanfalouti, Elancourt, France; and Emilie Fretigny, Epernon, France
Assignee: Aptiv Technologies Limited, St. Michael, Barbados
Method for crimping a cable terminal onto an electric cable includes providing an electric cable having an
outer insulation sheath and at least one conductive strand with a sheathed por- tion, and providing a
terminal having shrink wings and provide a gasket having a sealing portion and a shrink portion. The
method also includes stripping the electrical cable so that a stripped portion is formed, positioning the
shrinkage portion of the joint so that it directly overlaps the stripped portion of the cable without the
shrinkage portion overlapping the sheathed portion of the cable, and fully crimping the shrink wings onto
the shrink portion of the joint without the shrink wings covering the sheathed portion of the cable.

Cable Processing System
US Patent 11699896
Published July 11, 2023
Inventors: An Yang, Shanghai, China; Lvhai Hu, Shanghai, China; and Roberto Francisco-Yi Lu, Bellevue,
WA, USA TE Connectivity Solutions GmbH, Schaffhausen, Switzerland; and Tyco Electronics (Shanghai) Co.
Ltd., Shanghai, China
A cable processing system comprises a stripping device for stripping a segment of an outer cladding layer
of a cable. The stripping device includes a support frame, and a mounting plate movably mounted on the
support frame between a start position and an end position in the axial direction of the cable. The
mounting plate includes a first surface and a second surface opposite to each other in an axial direction
of the cable. A plurality of cutting units are mounted on the first surface of the mounting plate for cutting
off the outer cladding layer in a circumferential direction of the cable. A plurality of stripping units are
mounted on the second surface of the mounting plate for slicing the outer cladding layer in the axial
direction.

High-Voltage Electrical Cable with Mixed Conductors
US Patent 11699538
Published July 11, 2023
Inventors: Randall Sumner, New Wilmington, PA, USA; John Kightlinger, Canfield, OH, USA; George Drew,
Cortland, OH, USA; Gina Sacco, Warren, OH, USA; Jonathon D. Weidner, Conneautville, PA, USA
Assignee: Aptiv Technologies Limited, St. Michael, Barbados A high-voltage electrical cable assembly
includes a central wire strand containing at least seven wires formed of a first alloy and a plurality of
outer wire strands twisted around the central strand. At least one outer wire strand of the plurality of
outer wire strands contains at least seven wires formed of a second alloy different from the first alloy.
There is an electrochemical potential of about 2 volts between the first alloy and the second alloy. A
method of assembling a high-voltage electrical cable assembly is also presented herein.

Ethernet Cable
US Patent 11694823
Published July 4, 2023
Inventors: Jae Sung Park, Seoul, South Korea; Sung Hoon Kim, Gumi-si, South Korea; Woo Kyoung Lee,
Suwon-si, South Korea; and Jung Pyo Hong, Gumi-si, South Korea
Assignee: LS Cable & System Ltd., Anyang-si, South Korea
An Ethernet cable that includes a pair of cores including a single-wire conductor and an insulator
covering the singlewire conductor; and an armoring layer entirely covering the pair of cores, wherein the
pair of cores are twisted together to have a twist pitch (P1) in a cable length direction satisfying certain
characteristics.

Medium Voltage Electric Cable with Improved Behavior Under Fire
US Patent 11694822
Published July 4, 2023
Inventors: Sirin; Zekeriya, Bursa, Turkey; Bilal Ozdemir, Bursa, Turkey; and Serdar Büyük, Bursa, Turkey
Assignee: Prysmian S.p.A., Milan, Italy
A medium voltage electric cable having a conductor, an inner semi-conductive layer, an insulating layer,
an outer semiconductive layer, a wire metal screen, a filler layer made from an extruded elastomeric low
smoke zero halogen (LSOH) composition containing a polyethylene homopolymer and/ or copolymer
having a density lower than 0.93 g/cm3 and a metal hydroxide, and an outer sheath made from a low
smoke zero halogen (LSOH) composition containing a polymer mixture of an EVA polymer and
polyethylene homopolymer and/or copolymer having a density lower than 0.93 g/cm3, the polymer
mixture being charged with a metal hydroxide and a phyllosilicate clay.

Cable Jacket Composition
US Patent 11685825
Published June 27, 2023
Inventors: Anna Hjärtfors, Kungälv, Sweden; Yi Liu, Engerwitzdorf, Austria; Joseph Thorman, Helsinki,
Finland; and Victor Sumerin, Helsinki, Finland
Assignee: Borealis AG, Vienna, Austria
The present invention relates to a cable jacket composition comprising a multimodal olefin copolymer,
said copolymer having density of 0.935-0.960 g/cm3 and an MFR2 of 2.2 to 10.0 g/10 min and said
composition having ESCR of at least 2000 hours and a cable shrinkage of 0.70% or lower. The invention
further relates to the process for preparing said composition and its use as outer jacket layer for a cable,
preferably a communication cable, most preferably a fiber optic cable.