Matthew S Leach

US Patent:

20220262541, Aug 18, 2022

Filed:

Apr 28, 2022

Appl. No.:

17/731357

Inventors:

- Atlanta GA, US
James J. Connell - Fort Wayne IN, US
Allen Roe Guisinger - Huntertown IN, US
Allan R. Knerr - Fort Wayne IN, US
Matthew Leach - Fort Wayne IN, US
Frederick Marshall McFarland - Fort Wayne IN, US
Mohammad Mazhar Said - South Barrington IL, US

International Classification:

H01B 3/30
H01B 3/42

Abstract:

Magnet wire with flexible 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 first polymeric enamel insulation, a midcoat formed from second polymeric enamel insulation, and a topcoat formed from third polymeric enamel insulation. The midcoat may include a filler containing silica dioxide and chromium oxide dispersed in a base polyamideimide material. Additionally, the magnet wire may exhibit few or no cracks in the topcoat when the wire is bent 180 degrees around a 4 mm mandrel.

US Patent:

20230083970, Mar 16, 2023

Filed:

Nov 14, 2022

Appl. No.:

17/986520

Inventors:

- , US
Matthew E. Leach - Fort Wayne IN, US

International Classification:

H01B 3/42
H01B 7/02
H02K 3/30
H01B 3/30

Abstract:

Magnet wire including extruded insulation formed from a blend of 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 at least three different polymeric materials. A first polymeric material, such as polyetheretherketone, may have a thermal index above 250 C. Second and third polymeric materials, such as polyphenylsulfone and polyethersulfone, may have lower thermal indexes.

US Patent:

20210102068, Apr 8, 2021

Filed:

Sep 28, 2020

Appl. No.:

17/034415

Inventors:

- Atlanta GA, US
Matthew E. Leach - Fort Wayne IN, US

Assignee:

Essex Group LLC - Atlanta GA

International Classification:

C08L 81/06
C08L 81/04
C08L 67/00
C08L 69/00
C08L 79/08
C08G 75/0204
C08G 65/333
C08K 3/22
C08K 3/38
C08K 3/36
H02K 1/04

Abstract:

Insulating films suitable for use in magnet wire, electrical machines, and other applications may include at least one layer formed from extruded material. The extruded material may include 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, and the second polymeric material may include one of polyphenylsulfone, polyetherimide, polyethersulfone, polyphenylene sulfide, polycarbonate, or polyester.

US Patent:

20210078232, Mar 18, 2021

Filed:

Jul 13, 2018

Appl. No.:

16/629755

Inventors:

- Fort Wayne IN, US
Matthew Leach - Fort Wayne IN, US
M. Mazhar Said - Arlington Heights IL, US

International Classification:

B29C 48/00
B29C 48/154
B29C 48/21
B29C 48/34
H01B 13/14
H01B 3/30
H01F 5/06
H01F 41/12

Abstract:

Systems and methods for forming insulation on magnet wire are provided. An extruder that includes one or more rotating screws may receive a thermoset polymeric material and process the thermoset polymeric material to increase its pressure and temperature. An extrusion crosshead assembly in fluid communication with the extruder may receive the thermoset polymeric material and press extrude the thermoset polymeric material as insulation onto a magnet wire. A curing device may then cure the extruded insulation material.

US Patent:

20200312535, Oct 1, 2020

Filed:

Mar 26, 2020

Appl. No.:

16/831141

Inventors:

- Atlanta GA, US
Matthew E. Leach - Fort Wayne IN, US

Assignee:

Essex Group LLC - Atlanta GA

International Classification:

H01F 27/32
H01F 27/28

Abstract:

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.

US Patent:

20200143987, May 7, 2020

Filed:

Jul 13, 2018

Appl. No.:

16/629745

Inventors:

- Fort Wayne IN, US
Matthew Leach - Fort Wayne IN, US
M. Mazhar Said - Arlington Heights IL, US

International Classification:

H01F 41/12
B29C 48/00
B29C 48/21
B29C 48/34
B29C 48/92
H01B 13/14

Abstract:

Systems and methods for forming insulation on magnet wire are provided. An extruder that includes one or more rotating screws may receive a plurality of ingredients for a polymeric insulation material and process the plurality of ingredients to facilitate polymerization of the polymeric insulation material within the extruder. An application assembly in fluid communication with the extruder may apply the polymeric insulation material onto a wire. A curing device may then cure the polymeric insulation material.