Patents Examined by Burton S. Mullins
  • Patent number: 11996751
    Abstract: Provided is an electric motor in which it is possible to accurately leading-out terminal sections of a magnet wire that constitutes a stator coil in a prescribed leading-out direction as lead wires. A wire cover formed from a hard insulating resin is press-fitted into a wire leading-out hole provided in an end member that closes one end of a motor housing, and lead wires are led out to an exterior through through-holes provided in the wire cover. Crush ribs are provided to side surfaces of a head part of the wire cover, and, due to crushing of the crush ribs and press-fitting of the wire cover into the wire leading-out hole, the wire cover is prevented from inclining within the wire leading-out hole and a leading-out direction of the lead wires is prevented from deviating from the prescribed leading-out direction.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: May 28, 2024
    Assignee: MAHLE ELECTRIC DRIVES JAPAN CORPORATION
    Inventors: Masafumi Tamai, Ryosuke Suzuki, Yoshio Matsukawa
  • Patent number: 11979070
    Abstract: An insulation system and method are disclosed for insulating formed coils of electrical machines, such as motors and generators. The system includes strand/turn insulation that may include one or more layers of different materials, depending upon the dielectric requirements. A ground wall insulation is applied over the group of turns. The coil may be sized in a slot cell section. Additional insulation layers are provided, including a slot corona suppression insulation that extends just beyond stator slots, a voltage grading layer, and an armor layer. The resulting system is highly adaptable to different machine designs and ratings, and affords superior resistance to degradation.
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: May 7, 2024
    Assignee: Integrated Power Services LLC
    Inventors: Ray Thomas Reid, Mark D. Nikrandt, Donald Dolence, David N. Scherer
  • Patent number: 11973441
    Abstract: A microelectromechanical (MEMS) device is provided. The MEMS device comprises a substrate and a movable structure flexurally connected to the substrate, capable of moving in relation to the substrate, wherein the movable structure further comprising two or more segments having at least one mechanical connection between said segments to provide structural integrity of the moving structure; and wherein the at least one mechanical connection electrically isolates at least two segments.
    Type: Grant
    Filed: December 20, 2021
    Date of Patent: April 30, 2024
    Assignee: Board of Regents, The University of Texas System
    Inventors: Seyed Omid Reza Moheimani, Afshin Alipour, Mustafa Bulut Coskun
  • Patent number: 11965685
    Abstract: Provided are a magnetic bearing compressor, an air conditioner and a protective air gap value setting method. The magnetic bearing compressor includes: a rotor, a magnetic bearing, a sensor, and a control device. The magnetic bearing is sleeved on the rotor; the sensor is arranged on the magnetic bearing and is configured to detect a distance value between the rotor and the sensor on a preset plane; the control device is configured to receive the distance value and determine the minimum distance value and the maximum distance value between the rotor and the magnetic bearing according to the distance value, and obtain an absolute value of a difference of the maximum distance value and the minimum distance value; and the control device obtains a protective air gap value according to the absolute value and a preset protection coefficient when the absolute value is less than or equal to a preset air gap value.
    Type: Grant
    Filed: July 8, 2019
    Date of Patent: April 23, 2024
    Assignees: HEFEI MIDEA HEATING & VENTILATING EQUIPMENT CO., LTD., GD MIDEA HEATING & VENTILATING EQUIPMENT CO., LTD. Foshan (CN)
    Inventors: Bin Yang, Fengshuang Wang
  • Patent number: 11964831
    Abstract: An apparatus including a first device configured to support a substrate thereon; a first transport having the first device connected thereto, where the first transport includes: rails or maglev guides; a magnetic system configured to vertically space the first device over the rails or maglev guides with a gap between the first device and the rails or maglev guides, where the magnetic system comprises a first electromagnetic actuator at a first corner of a first side of the first device, a second electromagnetic actuator at a second corner of the first side of the first device, and a third electromagnetic actuator at a second opposite side of the first device, where the third electromagnetic actuator is not located proximate a corner of three sides of the first device; and a linear actuator configured to move the first device along the rails or maglev guides.
    Type: Grant
    Filed: February 12, 2020
    Date of Patent: April 23, 2024
    Assignee: Persimmon Technologies Corporation
    Inventors: Martin Hosek, Sripati Sah, Scott Frash
  • Patent number: 11967910
    Abstract: An electrode pair is provided including a first electrode and a second electrode. Each of the first electrode and the second electrode have an outer surface, an inner surface, a first end, a second end, and a lead extending outwardly from the first end. The lead has a first width at the first end. The second end of at least one of the first electrode and the second electrode have a recess formed therein having a first terminus and a second terminus. A second width extends between the first terminus and the second terminus of the recess. The recess is defined by a saw-tooth pattern. When the first electrode is positioned on the second electrode, the recess of the at least one of the first electrode is adjacent the lead of the other electrode.
    Type: Grant
    Filed: August 26, 2022
    Date of Patent: April 23, 2024
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventor: Michael P. Rowe
  • Patent number: 11961684
    Abstract: A capacitive system provides adjustable electrical potential output using first and second capacitive plates maintained in a parallel and opposed relationship, while permitting the separation distance of the first and second capacitive plates to change. A drive mechanism is used to increasing the separation distance between the capacitive plates, so that an increase in separation distance renders a decreased capacitance, and with the capacitive plates charged relative to each other, the increase in separation distance renders an increase in potential across the capacitive plates. A bidirectional DC-DC voltage converter transfers current to and from the capacitor.
    Type: Grant
    Filed: August 2, 2023
    Date of Patent: April 16, 2024
    Assignee: KING FAISAL UNIVERSITY
    Inventor: Aly Ahmed Aboulnaga
  • Patent number: 11955840
    Abstract: An embodiment relates to a stator and a motor comprising same, the stator comprising: a stator core comprising a yoke and multiple teeth protruding from the inner surface of the yoke; an insulator surrounding a part of the stator core; a coil wound around the insulator; and a molding portion disposed to cover the stator core, the insulator, and the coil. The insulator comprises a first insulator and a second insulator. The first insulator comprises: a body portion around which the coil is wound; and inner guide extending from the inside of the body portion in the perpendicular direction; a first outer guide extending from the outside of the body portion in the perpendicular direction; a second outer guide disposed to be spaced apart from the first outer guide in the outward direction; and a protrusion protruding from the second outer guide in the inward direction. The protrusion has an end portion disposed such that a predetermined gap (G) is formed between same and the first outer guide.
    Type: Grant
    Filed: July 8, 2019
    Date of Patent: April 9, 2024
    Assignee: LG INNOTEK CO., LTD.
    Inventor: Il Sik Won
  • Patent number: 11955846
    Abstract: A rotor (1) of an electrical machine is already known, comprising a rotor body (3) which can be rotated about a rotor axis (2) and comprising several cooling ducts (5) which have a cooling duct opening (8.1, 8.2) at each of its ends, wherein one cooling duct opening (8.1) of one of the cooling ducts (5) is arranged radially further outside than the other cooling duct opening (8.2) of the same cooling duct (5). The driving force for generating an airflow through the cooling ducts (5) is generated by a radial offset between a channel of a hollow shaft of the rotor and one of the cooling duct openings of the rotor. In the rotor (1) according to the invention, the driving force for generating the airflow is generated solely in the cooling duct (5) in question of the rotor (1). According to the invention: the first cover element (10) covers the radially innermost partial cross-section of the cooling duct opening (8.
    Type: Grant
    Filed: October 15, 2019
    Date of Patent: April 9, 2024
    Assignee: Robert Bosch GmbH
    Inventors: Daniel Kuehbacher, Felix Bensing, Jannik Stammler, Ralph Peter, Uwe Knappenberger
  • Patent number: 11949284
    Abstract: A stator including a ring having teeth and slots between said teeth that open radially outwards and material bridges, each linking two adjacent teeth to the respective base on the side of the air-gap, a yoke attached to the ring, and windings placed in the slots of the ring, at least some of the material bridges having at least on deformable zone that can be deformed during assembly of the yoke on the ring.
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: April 2, 2024
    Assignee: MOTEURS LEROY-SOMER
    Inventors: Xavier Jannot, Francois Turcat, Cedric Plasse, Olivier Gas
  • Patent number: 11942830
    Abstract: An electric motor monitor having at least one sensor in electrical communication with a memory device and a motor. The memory device is configured to establish a performance baseline of the motor throughout its workload. The signal processing incorporates a memory device such as a microcomputer and/or a programmable logic controller configured to determine the work being performed by the motor by comparing the baseline performance of the motor throughout its work load to at least, the armature amperage of the motor. A wireless system transmits an operating motor's work parameters including, but not limited to, amperage, temperature, vibration, sound, rotation, power, moisture and/or voltage data, to a mobile or fixed base receiver. Data is accessible and viewable in real time. Alerts based on user-defined thresholds of the sensors are sent to an electronic device such as a tablet, a computer, and/or a smart phone.
    Type: Grant
    Filed: August 10, 2022
    Date of Patent: March 26, 2024
    Inventor: Charles Douglas Eidschun
  • Patent number: 11936250
    Abstract: A movable magnet is configured by alternately magnetizing an even number of magnetic poles at an outer periphery of a shaft part; a number of core magnetic poles as magnetic poles of a core body and a number of magnetic poles of the movable magnet are equal to each other; the core magnetic poles are disposed to face the movable magnet with an air gap therebetween on an outer peripheral side of the movable magnet in a direction orthogonal to the shaft part; a drive unit is provided with a magnet position holding part provided to face the movable magnet and magnetically attracts the movable magnet to a reference position; the core body is formed to surround an even number of the core magnetic poles; and a coil body is disposed at the core body adjacent to each of the even number of the core magnetic poles.
    Type: Grant
    Filed: August 5, 2021
    Date of Patent: March 19, 2024
    Assignee: MITSUMI ELECTRIC CO., LTD.
    Inventors: Yasutaka Kitamura, Yuki Takahashi, Masaharu Kagami, Yuki Otsuka
  • Patent number: 11930709
    Abstract: Integrated arrangements of electrical machines and power electronics converters are described. One such arrangement comprises: an electrical machine comprising one or more windings; a power electronics converter arranged to supply current to or receive current from the one or more windings of the electrical machine; a magnetocaloric effect (MCE) material in thermal contact with the power electronics converter; and a heat sink for removing heat from the MCE material. The MCE material is arranged in proximity to the one or more windings of the electrical machine whereby, in use, stray magnetic flux from the windings of the electrical machine passes through the MCE material and activates the MCE material. The repeated application and removal of the stray flux during normal operation of the electrical machine creates cycles of magnetic refrigeration, which removes heat from the power electronics converter.
    Type: Grant
    Filed: January 11, 2022
    Date of Patent: March 12, 2024
    Assignee: Rolls-Royce PLC
    Inventor: Ellis F H Chong
  • Patent number: 11923790
    Abstract: A dielectric elastomer drive system A1 includes: a dielectric elastomer drive unit 1 provided with a dielectric elastomer layer 11 and a pair of electrode layers 12 flanking the dielectric elastomer layer 11; a power supply unit 5 configured to apply voltage to the dielectric elastomer drive unit 1; and a charge removal unit 2 configured to remove the charge stored in the dielectric elastomer drive unit 1. The configuration contributes to improving responsiveness.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: March 5, 2024
    Assignees: ZEON CORPORATION
    Inventors: Seiki Chiba, Mikio Waki, Mitsuaki Ito, Makoto Sawada
  • Patent number: 11923752
    Abstract: A power tool with a combined printed circuit board (PCB) that reduces internal wiring of the power tool and provides a large amount of air flow to internal components. In some instances, the combined PCB has a surfboard shape and includes a motor control unit and power switching elements (Field Effect Transistors or FETs). The combined surfboard PCB is located above the trigger, but below the motor and drive mechanism. In other instances, the combined PCB has a doughnut shape and is located coaxially with a motor shaft. The combined PCB may be positioned between a doughnut-shaped control PCB and the motor.
    Type: Grant
    Filed: June 8, 2021
    Date of Patent: March 5, 2024
    Assignee: Milwaukee Electric Tool Corporation
    Inventors: Matthew J. Mergener, Michael Kolden, William E. Check, Matthew P. Wycklendt, Andrew T. Beyerl, John W. Thiele, Todd C. Hunkins
  • Patent number: 11888413
    Abstract: An actuator that utilizes a Coulomb force is provided. An actuator (10) includes a base electrode (2), a counter electrode (4) opposing the base electrode (2), a first terminal (31) connected to the base electrode (2), and a second terminal (32) connected to the counter electrode (4). At least a surface (2c) of the base electrode (2) that opposes the counter electrode (4) is covered with an insulating layer (6). The counter electrode (4) includes a flexible electrical conductor being deformable by a Coulomb force acting between the base electrode (2) and the counter electrode (4) when a voltage is applied between the first terminal (31) and the second terminal (32).
    Type: Grant
    Filed: July 21, 2020
    Date of Patent: January 30, 2024
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shuji Nakagawa, Tomoki Yudate
  • Patent number: 11870368
    Abstract: An example apparatus including a rotor stage of an electrostatic machine, the rotor stage including a rotor plate, at least one rotor via, a rotor power distribution board including at least one rotor power distribution bus, at least one rotor power coupling perforation, and a rotor electrical coupling circuit; a stator stage of the electrostatic machine, the stator stage including a stator plate, at least one stator via, a stator power distribution board including at least one stator power distribution bus, at least one stator power coupling perforation; and a stator electrical coupling circuit structured to electrically couple the at least one stator power distribution bus to at least a portion of the plurality of stator electrodes, wherein the stator electrical coupling circuit extends through the at least one stator via and the at least one stator power coupling perforation.
    Type: Grant
    Filed: April 19, 2021
    Date of Patent: January 9, 2024
    Assignee: C-Motive Technologies, Inc.
    Inventors: Ryan Knippel, William D. Butrymowicz, Baoyun Ge
  • Patent number: 11870326
    Abstract: In an electric power steering apparatus, a motor housing includes an axial end part opposite to an output part of an electric motor. An electronic control section is arranged at the axial end part of the motor housing. The electronic control section includes a control circuit part, a power supply circuit part, and a power conversion circuit part. The axial end part of the motor housing includes a power conversion part thermal radiation region and a power supply part thermal radiation region. The power conversion circuit part is mounted to the power conversion part thermal radiation region to allow heat to be transferred from the power conversion circuit part to the motor housing. The power supply circuit part is mounted to the power supply part thermal radiation region to allow heat to be transferred from the power supply circuit part to the motor housing.
    Type: Grant
    Filed: May 20, 2022
    Date of Patent: January 9, 2024
    Assignee: HITACHI ASTEMO, LTD.
    Inventor: Keiji Hamada
  • Patent number: 11856361
    Abstract: A handheld image stabilization device or an image capture device includes a housing, a motor, a microphone, and a dampener. The housing includes a first port. The motor is attached to the housing. The microphone detects audio waves via the first port and vibration noise of the motor via the housing. The audio waves may include acoustic noise from the motor. The dampener is coupled to the housing. The dampener reduces the acoustic noise from the motor and the vibration noise from the motor.
    Type: Grant
    Filed: July 14, 2022
    Date of Patent: December 26, 2023
    Assignee: GoPro, Inc.
    Inventors: Himay Shukla, Erich Tisch, Joyce Gorny, Eric Penrod, Kielan Crow
  • Patent number: 11848625
    Abstract: The present invention is directed to providing an electrostatic actuator that can generate a large electrostatic force even if composed of a ribbon-shaped electrode film. In an electrostatic actuator 10, 20 including a ribbon-shaped first electrode film 11 and a ribbon-shaped second electrode film 12, a plurality of first electrodes 1 formed of the first electrode film 11 and a plurality of second electrodes 2 formed of the second electrode film 12 are folded and laminated between one end 13 and the other end 14 of the electrostatic actuator 10, 20, and the plurality of first electrodes 1 include a pair of end electrodes 1a that are adjacent to each other in a direction in which the first electrode film 11 extends in a ribbon shape and are respectively positioned at the one end 13 and the other end 14 when laminated and at least one intermediate electrode 1b that is positioned between the end electrodes 1a when laminated.
    Type: Grant
    Filed: June 17, 2020
    Date of Patent: December 19, 2023
    Assignee: STRAWB INC.
    Inventors: Keiji Saneyoshi, Kazuo Okuda