Patents Examined by Ramon M. Barrera
  • Patent number: 11658521
    Abstract: A stator includes a first sleeve extending in an axial direction and a first stator core on an outer periphery of the first sleeve. The first stator core includes a lower core and an upper core on a side of the lower core opposed to a first end of the axial direction. The lower core includes a lower annular portion with an annular shape and lower pole teeth protruding radially outward from a radially outer end surface of the lower annular portion and extending to a second end of the axial direction. The upper core includes an upper annular portion with an annular shape arranged on the lower annular portion opposed to the first end of the axial direction to overlap the lower annular portion, and upper pole teeth protruding radially outward from a radially outer end surface of the upper annular portion and extending to the second end of the axial direction. Each of the lower pole teeth and each of the upper pole teeth are alternately arranged in the circumferential direction.
    Type: Grant
    Filed: January 11, 2022
    Date of Patent: May 23, 2023
    Assignee: NIDEC CORPORATION
    Inventor: Tomoki Uchibori
  • Patent number: 11652380
    Abstract: An electric motor assembly comprising a stator having a plurality of stator lamination sheets. Each of the stator lamination sheets includes an annular body and a plurality of stator teeth extending radially inwardly from the annular body to an opening. A rotor is located in the opening. Each of the stator teeth defining a pocket with a dampening element located in the pocket. The dampening element comprises a material that is viscoelastic. The pocket and dampening element are located in a location of the stator tooth that has less magnetic flux than an adjacent area of the stator tooth.
    Type: Grant
    Filed: December 16, 2020
    Date of Patent: May 16, 2023
    Assignee: Steering Solutions IP Holding Corporation
    Inventors: Zhao Wan, Mojtaba Bahrami Kouhshahi, Robert W. Long, Kenneth P. Webber, Jr., Jeffrey T. Klass
  • Patent number: 11652382
    Abstract: A motor wiring member configured to supply three-phase alternating current to a motor includes conductive wires, each of which has a connecting portion being provided at one end and being configured to be connected to a coil end of a stator of the motor, a terminal being provided at an other end of each conductive wire and being configured to be connected to an electrode of a terminal block, and a surge suppression section being configured to suppress an overvoltage from being applied to the motor. The surge suppression section includes three series circuits, each of which includes a resistor and a capacitor. One ends of the three series circuits are electrically connected to the conductive wires of respective phases, and other ends of the three series circuits are electrically connected to each other. The surge suppression section is provided along with the conductor wires near the terminal and is located between the terminal and the connecting portion.
    Type: Grant
    Filed: August 4, 2021
    Date of Patent: May 16, 2023
    Assignee: PROTERIAL, LTD.
    Inventors: Masanori Sagawa, Yuta Sugiyama, Keisuke Fukuchi, Yukio Ikeda
  • Patent number: 11652395
    Abstract: Inertial actuators are provided, which use a one-dimensional or a two-dimensional voice coil array to achieve the same force output performance as a monolithic actuator. The voice coil arrays use less permanent magnet and flux conducting material, and have a lower inductance, while achieving increased frequency bandwidth.
    Type: Grant
    Filed: March 4, 2022
    Date of Patent: May 16, 2023
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventor: John E. Miesner
  • Patent number: 11650180
    Abstract: An electromagnet for a thermography system comprising a first elongated magnetic core spaced apart from a second elongated magnetic core; at least a first shorting bar connecting substantially at a first end of the first elongated magnetic core and a first end of the second elongated magnetic core; and at least a first excitation coil configured to conduct electrical current.
    Type: Grant
    Filed: August 18, 2022
    Date of Patent: May 16, 2023
    Inventor: Meir Gershenson
  • Patent number: 11632023
    Abstract: A laminated iron core includes a plurality of blanked iron core pieces laminated together, a continuity of side parts of the iron core pieces configuring a side surface of the laminated iron core. The side part of each iron core piece includes a specific light reflection area having a prescribed width along a circumferential direction, where the specific light reflection area has different light reflection characteristics from the other area of the side part of the iron core piece, and a striped pattern, configured by the specific light reflection areas, exists on the side surface of the laminated iron core.
    Type: Grant
    Filed: January 21, 2020
    Date of Patent: April 18, 2023
    Assignee: MITSUI HIGH-TEC, INC.
    Inventors: Hirokazu Arakawa, Takashi Maruyama, Kenichi Takasaki
  • Patent number: 11626260
    Abstract: A circuit interrupter includes a first set of contacts connected in series with a second set of contacts, with both sets of contacts configured to open and close simultaneously. First and second arc extinguishers are associated with the first and second sets of contacts, respectively. A moveable permanent magnet moves as the sets of contacts simultaneously open and close, the moveable magnet generating a moveable magnetic field, a first stationary permanent magnet associated with the first arc extinguisher, the first stationary magnet generating a first stationary magnetic field, where the first stationary magnetic field and the moveable magnetic field are additive, and a second stationary permanent magnet associated with the second arc extinguisher, the second stationary magnet generating a second stationary magnetic field, where the second stationary magnetic field and the moveable magnetic field are also additive.
    Type: Grant
    Filed: April 28, 2021
    Date of Patent: April 11, 2023
    Assignee: Carling Technologies, Inc
    Inventor: Michael Fasano
  • Patent number: 11626230
    Abstract: A pipeline demagnetization device based on a permanent magnet structure includes a central piece and permanent magnets distributed on the central piece. A magnetic field with alternating directions is formed in a wall of a pipeline in an axial direction from front to back, and strength of the magnetic field gradually decreases. The pipeline demagnetization device can be applied to the pipeline demagnetization using a built-in structure or an externally-built structure. The pipeline demagnetization device spatially constructs a set of stable alternately-decayed magnetic fields, so that the wall of the pipeline experiences the set of alternately-decayed magnetic fields when the pipeline that is magnetized spatially displaces relative to the set of alternately-decayed magnetic fields, thereby realizing demagnetization.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: April 11, 2023
    Assignee: Shanghai Jieling Magnetic Material & Devices Co., Ltd.
    Inventors: Huixin Zhang, Shiyuan Zhang, Xiaoqing Wang
  • Patent number: 11610751
    Abstract: A reset lockout mechanism for a circuit breaker includes a linkage, a rocker, an armature, a solenoid, and a plunger. The linkage is positioned to move between an open position and a closed position. The rocker is selectively engageable with the linkage. The armature is selectively engageable with the rocker. The plunger is supported by the solenoid and operatively coupled to the armature. The plunger is movable between a first position and a second position.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: March 21, 2023
    Assignee: Leviton Manufacturing Co., Inc.
    Inventors: Michael Kamor, Stephen Aaron
  • Patent number: 11611265
    Abstract: An electric compressor includes a compression part, an electric motor, an inverter device, and a housing. The inverter device includes an inverter circuit, a noise reduction unit, and a circuit board. The noise reduction unit includes a common mode choke coil and a smoothing capacitor. The common mode choke coil includes an annular core, a pair of winding wires, and an annular electrical conductor. The electrical conductor is split into a first metal plate and a second metal plate in a circumferential direction. The first metal plate is thermally coupled to the housing. The second metal plate is electrically connected to the first metal plate. An electrical resistance value of the first metal plate is larger than that of the second metal plate.
    Type: Grant
    Filed: April 6, 2021
    Date of Patent: March 21, 2023
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Kouki Yamamoto, Mikio Yoshida, Kenji Hayakawa, Takuya Sagawa, Yusuke Kinoshita, Shunsuke Ambo, Junya Kaida
  • Patent number: 11594388
    Abstract: A control unit includes: an input portion that receives the positional information of a vehicle; a calculation unit that generates a control signal for controlling an electromagnetic relay; and an output portion that outputs the control signal to the electromagnetic relay. The calculation unit determines whether a location region of the electromagnetic relay is a relay-freeze region, the location region being identified by the positional information of the vehicle, and, when the location region of the electromagnetic relay is a relay-freeze region, performs a freeze inhibiting process for preventing the electromagnetic relay from being frozen or defrosting the electromagnetic relay by opening and closing the electromagnetic relay and causing the electromagnetic relay to vibrate.
    Type: Grant
    Filed: October 21, 2021
    Date of Patent: February 28, 2023
    Assignee: PRIME PLANET ENERGY & SOLUTIONS, INC.
    Inventors: Atsushi Hirayama, Masahiro Sata, Masato Nishikawa, Kimihiko Furukawa, Katsuhiro Arinobu, Taketoshi Yoshikane
  • Patent number: 11594930
    Abstract: A rotating electric machine includes a multi-phase armature coil wound on an armature core. The armature coil is formed of electrical conductor groups each being a bundle of electrical conductor segments and having a pair of leg portions and a connecting portion that connects the leg portions. The connecting portion is bent radially with respect to a circumferential direction. The electrical conductor groups are paired such that each pair of the electrical conductor groups consists of a first electrical conductor group and a second electrical conductor group both belonging to a same phase of the armature coil. The circumferential pitch between the leg portions of the first electrical conductor group is greater than that between the leg portions of the second electrical conductor group. In each pair of the electrical conductor groups, the connecting portions of the first and second electrical conductor groups are arranged to axially overlap each other.
    Type: Grant
    Filed: April 20, 2021
    Date of Patent: February 28, 2023
    Assignee: DENSO CORPORATION
    Inventors: Hiroshi Endo, Akito Tamura
  • Patent number: 11588375
    Abstract: The present disclosure provides a motor router comprising: an annular body having a first coil guide; and a guide part formed to protrude from the body, and having a second coil guide to which the first coil guide is connected, and thus the present invention reduces the number of parts and has a simplified configuration, thereby providing an advantageous effect of reducing manufacturing processes and manufacturing costs.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: February 21, 2023
    Assignees: LG INNOTEK CO., LTD.
    Inventors: Kyung Sang Park, Seong Jin Kim, Jung Woo Jo, Chang Hyun Park
  • Patent number: 11588387
    Abstract: A hybrid spherical motor includes a first gear box, a second gear box, a yoke arm, a brushless direct current (BLDC) motor, a spherical stator, and a spherical armature. The split armature, in response to the spherical stator being energized, rotates about a first rotational axis, thereby causing the first gear box input connection and the second gear box input connection to rotate about the first rotational axis, and the yoke arm rotates about the first rotational axis in response to the first gear box input connection and the second gear box input connection being rotated about the first rotational axis, whereby the BLDC motor rotates about the first rotational axis.
    Type: Grant
    Filed: August 21, 2020
    Date of Patent: February 21, 2023
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Deepak Pitambar Mahajan, Varun Ananda, Subhashree Rajagopal, Renukaprasad N
  • Patent number: 11581783
    Abstract: A reciprocating tool includes a motor, a reciprocating member, and a crank mechanism. The motor is disposed in a housing. The reciprocating member projects from the housing. The crank mechanism converts rotation of a rotation shaft of the motor into reciprocation of the reciprocating member. The crank mechanism rotates around an axis in a lateral direction by rotation transmission from the rotation shaft, and the crank mechanism includes a crank member having an eccentric pin, a connecting rod coupling the eccentric pin to the reciprocating member, and a balancer coupled to the eccentric pin, and the balancer is supported by the eccentric pin alone in the housing.
    Type: Grant
    Filed: May 17, 2021
    Date of Patent: February 14, 2023
    Assignee: MAKITA CORPORATION
    Inventors: Ryosuke Hara, Tomohiro Ukai
  • Patent number: 11581771
    Abstract: An electrical machine may include a comprise a rotor, a stator, a coolant distributor chamber and a coolant collector chamber. The rotor may be rotated about an axis of rotation that defines an axial direction of the electrical machine. The stator may comprise a plurality of stator windings. The coolant collector chamber may be axially arranged at a distance from the coolant distributor chamber. The coolant distributor chamber may communicate fluidically with the coolant collector chamber by way of least one cooling channel through which a coolant can flow. The at least one cooling channel and the at least one stator winding may be embedded in a plastic mass consisting of an electrically insulating plastic for thermal coupling to the coolant.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: February 14, 2023
    Inventors: Mirko Hoerz, Hans-Ulrich Steurer, Josef Sonntag, Markic Stojan, Andrej Licen, Aleks Medvescek, Peter Sever, Philip Grabherr
  • Patent number: 11581773
    Abstract: A flat-angled coil having a three-dimensional shape for maximizing a space factor according to the present invention comprises a unit coil comprising multiple layers which are provided to surround the peripheries of teeth of a core provided on an electric motor and laminated along the longitudinal direction of the teeth of the core so as to be integrally connected to each other continuously. The unit coil is formed such that at least a part of an adjacent portion thereof, which is adjacent to another unit coil provided in the same slot formed between the surrounded teeth of the core and the teeth of an adjacent core, is non-parallel with the side surfaces of the surrounded teeth of the core.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: February 14, 2023
    Assignee: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
    Inventors: Eui Chun Lee, Soon O Kwon
  • Patent number: 11575302
    Abstract: A vibration actuator that cooperates with a coil and a magnet to vibrate a movable body with respect to a stationary body, including: the stationary body including the coil and a core around which the coil is wound; a shaft part; and the movable body including the magnet, the movable body being movably supported by the stationary body via the shaft part, wherein the core is disposed along an axial direction of the shaft part, and includes a core-side magnetic pole to be excited by energization to the coil, the magnet includes a magnet-side magnetic pole disposed so as to face the core-side magnetic pole with a gap therebetween, and the vibration actuator further includes a spring part elastically supporting the movable body with respect to the stationary body, linearly movably in the axial direction in a reciprocating manner, and rotationally movably about an axis in a reciprocating manner.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: February 7, 2023
    Assignee: MINEBEA MITSUMI INC.
    Inventors: Yuki Takahashi, Chikara Sekiguchi, Yuki Otsuka, Tomoya Ishitani, Kazutaka Sakaguchi, Shigenori Inamoto
  • Patent number: 11569718
    Abstract: A multi-rotor electric machine having a stator, a first rotor magnetically coupled to the stator and a second rotor magnetically coupled to the stator is disclosed. A method of operating the electric machine comprises driving a gear via a first face of the gear using the first rotor and driving the gear via a second face of the gear using the second rotor.
    Type: Grant
    Filed: May 20, 2021
    Date of Patent: January 31, 2023
    Assignee: PRATT & WHITNEY CANADA CORP.
    Inventor: Antwan Shenouda
  • Patent number: 11554269
    Abstract: A method, apparatus and components thereof enable selective or differentiated manipulation of at least one of a plurality of particles located in a region of space via magnetic field generation and variation.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: January 17, 2023
    Assignee: WEINBERG MEDICAL PHYSICS, INC.
    Inventors: Irving Weinberg, Bradley English