Patents Assigned to ESSEX FURUKAWA MAGNET WIRE USA LLC
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Patent number: 11728067Abstract: 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.Type: GrantFiled: April 28, 2022Date of Patent: August 15, 2023Assignee: Essex Furukawa Magnet Wire USA LLCInventors: Tamanna Ferdous McFarland, James J. Connell, Allen Roe Guisinger, Allan R. Knerr, Matthew Leach, Frederick Marshall McFarland, Mohammad Mazhar Said
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Patent number: 11728068Abstract: 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 percent and 80 percent by weight of silica dioxide and between 20 and 80 percent by weight of titanium dioxide. Additionally, the insulation system may include a topcoat formed from third polymeric enamel insulation formed around the midcoat.Type: GrantFiled: April 28, 2022Date of Patent: August 15, 2023Assignee: Essex Furukawa Magnet Wire USA LLCInventors: Matthew Leach, James J. Connell, Allen Roe Guisinger, Allan R. Knerr, Frederick Marshall McFarland, Tamanna Ferdous McFarland, Mohammad Mazhar Said
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Patent number: 11708491Abstract: 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.Type: GrantFiled: September 28, 2020Date of Patent: July 25, 2023Assignee: Essex Furukawa Magnet Wire USA LLCInventors: Mohammad Mazhar Said, Matthew E. Leach
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Patent number: 11705771Abstract: Electric machines, such as motors, may include an armature and a field component, and at least one of the armature or the field component may include a laminated structure having a plurality of slots into which a plurality of conductive elements are positioned. Additionally, a polymeric insulation layer may be formed directly on the laminated structure at least within the plurality of slots.Type: GrantFiled: August 10, 2021Date of Patent: July 18, 2023Assignee: Essex Furukawa Magnet Wire USA LLCInventors: Christopher Paul Richardson, Frederick McFarland, Daniel M. Saban, Allan R. Knerr
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Patent number: 11688527Abstract: Magnet wire including extruded insulation formed from multiple layers of different materials is described. A magnet wire may include a conductor and insulation formed around the conductor. The insulation may include a first layer of extruded thermoplastic insulation formed around the conductor and a second layer of extruded thermoplastic insulation formed around the first layer of extruded thermoplastic insulation. The first layer may be formed from a first polymeric material having a first thermal index, and the second layer may be formed from a second polymeric material having a second thermal index higher than the first thermal index.Type: GrantFiled: August 6, 2021Date of Patent: June 27, 2023Assignee: Essex Furukawa Magnet Wire USA LLCInventors: Matthew E. Leach, Mohammad Mazhar Said, Guadalupe Arambula, Zhiyang Zhao
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Patent number: 11615914Abstract: 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.Type: GrantFiled: March 26, 2020Date of Patent: March 28, 2023Assignee: ESSEX FURUKAWA MAGNET WIRE USA LLCInventors: Mohammad Mazhar Said, Matthew E. Leach
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Patent number: 11488775Abstract: 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.Type: GrantFiled: July 13, 2018Date of Patent: November 1, 2022Assignee: ESSEX FURUKAWA MAGNET WIRE USA LLCInventors: Rakshit Amba, Matthew Leach, M. Mazhar Said
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Patent number: 11488774Abstract: 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.Type: GrantFiled: July 13, 2018Date of Patent: November 1, 2022Assignee: ESSEX FURUKAWA MAGNET WIRE USA LLCInventors: Rakshit Amba, Matthew Leach, M. Mazhar Said
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Patent number: 11352521Abstract: Magnet wire with corona resistant enamel insulation may include a conductor, and at least one layer of polymeric enamel insulation may be formed around the conductor. The polymeric enamel insulation may include a filler dispersed in a base polyamideimide material. The filler may include between 20 percent and 80 percent by weight of silica dioxide and between 20 and 80 percent by weight of titanium dioxide. Additionally, the polymeric enamel insulation may have a thermal index of at least 230° C. and a thermal index that is at least twice that of the base polymeric material.Type: GrantFiled: May 10, 2021Date of Patent: June 7, 2022Assignee: Essex Furukawa Magnet Wire USA LLCInventors: Allan R. Knerr, Gregory S. Caudill, Vanessa Jean Scott, David Mykel Geng
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Patent number: 11225553Abstract: Amine-substituted copolymers that may include an amine-substituted pyrrolidine-2,5-dione moiety. Polyamic acids and polyimides, which may be formed by contacting an amine substituted copolymer with a dianhydride, or a dianhydride and a diamine. Articles, such as wires, having a surface on which a polyimide is disposed. Methods for forming polymers.Type: GrantFiled: June 25, 2021Date of Patent: January 18, 2022Assignee: Essex Furukawa Magnet Wire USA LLCInventor: Scott Jolley
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Publication number: 20210261817Abstract: Magnet wire with corona resistant enamel insulation may include a conductor, and at least one layer of polymeric enamel insulation may be formed around the conductor. The polymeric enamel insulation may include a filler dispersed in a base polyamideimide material. The filler may include between 20 percent and 80 percent by weight of silica dioxide and between 20 and 80 percent by weight of titanium dioxide. Additionally, the polymeric enamel insulation may have a thermal index of at least 230° C. and a thermal index that is at least twice that of the base polymeric material.Type: ApplicationFiled: May 10, 2021Publication date: August 26, 2021Applicant: Essex Furukawa Magnet Wire USA LLCInventors: Allan R. Knerr, Gregory S. Caudill, Vanessa Jean Scott, David Mykel Geng
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Patent number: 11004575Abstract: Magnet wire with corona resistant enamel insulation may include a conductor, and at least one layer of polymeric enamel insulation may be formed around the conductor. The polymeric enamel insulation may include a filler dispersed in a base polyimide material. The filler may include between 20 percent and 80 percent by weight of silica oxide and between 20 and 80 percent by weight of titanium oxide. Additionally, the polymeric enamel insulation may have a thermal index of at least 260° C. and a thermal index that is at least twice that of the base polymeric material.Type: GrantFiled: August 26, 2020Date of Patent: May 11, 2021Assignee: Essex Furukawa Magnet Wire USA LLCInventor: Allan R. Knerr
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Patent number: 10872715Abstract: Magnet wire with corona resistant enamel insulation is described. A magnet wire may include a conductor, and at least one layer of polymeric enamel insulation may be formed around the conductor. The polymeric enamel insulation may include a filler dispersed in a base polymeric material, such as polyimide. Additionally, the filler may include an organometallic compound.Type: GrantFiled: June 24, 2019Date of Patent: December 22, 2020Assignee: ESSEX FURUKAWA MAGNET WIRE USA LLCInventor: Scott Ted Jolley