Patents Examined by John K Kim
  • Patent number: 11031857
    Abstract: An electromechanical generator for converting mechanical vibrational energy into electrical energy, the electromechanical generator comprising: a central mast, an electrically conductive coil assembly fixedly mounted to the mast, the coil assembly at least partly surrounding the mast, a mount for the coil assembly extending radially inwardly of the coil assembly and fixing the coil assembly to the mast, wherein the mount comprises a conical wall extending between the coil assembly and the mast, a magnetic core assembly movably mounted to the mast for linear vibrational motion along an axis about an equilibrium position on the axis, the magnetic core assembly at least partly surrounding the coil assembly and the mast, and a biasing device mounted between the mast and the magnetic core assembly to bias the magnetic core assembly in opposed directions along the axis towards the equilibrium position.
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: June 8, 2021
    Assignee: PERPETUUM LTD
    Inventor: Adam Wasenczuk
  • Patent number: 11025175
    Abstract: In some examples, a device includes a nanovoided polymer element, a planarization layer disposed on a surface of the nanovoided polymer element, a first electrode disposed on the planarization layer, and a second electrode. The nanovoided polymer element may be located at least in part between the first electrode and the second electrode. The planarization layer may be located between the nanovoided polymer element and the first electrode.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: June 1, 2021
    Assignee: Facebook Technologies, LLC
    Inventors: Renate Eva Klementine Landig, Kenneth Diest, Spencer Allan Wells, Andrew John Ouderkirk, Sheng Ye
  • Patent number: 11025115
    Abstract: An electric machine rotor assembly includes a rotor core defining a rotor axis. Windings are seated in the rotor core. A plurality of wedges circumferentially spaced apart around the rotor core relative to the rotor axis. Each rotor core extends axially and separates between two respective portions of the windings. A supply end plate is mounted at a first axial end of the rotor core. A return end plate is mounted at a second axial end of the rotor core opposite the first axial end. A flow path for coolant fluid extends through the supply end plate into the wedges, through the wedges and into the return end plate, and through the return end plate.
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: June 1, 2021
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Eric Alan Larson, Glenn C. Lemmers, Jr., Brady A. Manogue
  • Patent number: 11018550
    Abstract: Provided is a rotary electric machine that decreases the rigidity of a frame into which a stator core is press-fitted and is also able to maintain the circularity of the frame. The rotary electric machine includes a rotatably held rotor, a stator having a stator core on which a coil is wound and which is disposed so as to oppose the rotor, and an annular frame holding the stator core. The frame has a tubular drum portion holding the stator core and a plurality of flange portions, and a plurality of grooves are formed on an end portion of the drum portion in an axial direction of the drum portion by cutting the drum portion.
    Type: Grant
    Filed: April 15, 2019
    Date of Patent: May 25, 2021
    Assignee: Mitsubishi Electric Corporation
    Inventors: Ryuji Kitamura, Takanori Onoue
  • Patent number: 11018569
    Abstract: The torque augmentation device has two primary embodiments. The first embodiment is two rotors, the rotors including rings of permanent magnets. The two rotors are angled with respect to each other. The magnetic field is disrupted on the bottom half by a ferrous flux diversion plate. With the forces unbalanced between the upper and lower halves of the rotors, rotation will result, thus augmenting the torque production of any associated rotational device. The second embodiment uses a straight shaft, with a single central rotor, both sides of the rotor covered in magnets. In place of adjacent rotors, the second half of the magnets is placed on fixed plates, one on each side of the central rotor. The fixed plates are set at an angle with respect to the central rotor, creating the unbalanced forces that cause rotation.
    Type: Grant
    Filed: April 14, 2020
    Date of Patent: May 25, 2021
    Inventors: Robert Herrin, Sean R. Khant
  • Patent number: 11015314
    Abstract: A snow thrower includes a first drive shaft enabled to rotate about a first axis; an auger having auger blades mounted to the first drive shaft, a second drive shaft enabled to rotate about a second axis, an impeller having an impeller base mounted to the second drive shaft and impeller blades where the second axis and the first axis are perpendicular to each other, a walking wheel assembly, a first motor configured to drive the walking wheel assembly to rotate, a second motor configured to drive the auger to rotate about the first axis and drive the impeller to rotate about the second axis, a first reduction assembly including first-type gears for realizing power transmission between the second motor and the second drive shaft, and a second reduction assembly including second-type gears for realizing power transmission between the second drive shaft and the first drive shaft.
    Type: Grant
    Filed: October 22, 2020
    Date of Patent: May 25, 2021
    Assignee: Nanjing Chervon Industry Co., Ltd.
    Inventors: Toshinari Yamaoka, Fangjie Nie, Huixing Fu
  • Patent number: 11011958
    Abstract: An energy harvester article configured to associate with a ferromagnetic flywheel having gear teeth is provided and includes a magnet, a first pole piece, wherein the first pole piece includes a first pole piece first end and a first pole piece second end, a second pole piece, wherein the second pole piece includes a first portion and a second portion configured into an “L” shape, and wherein the second portion is arranged to be substantially parallel with the first pole piece and separated from the first pole piece by a distance L, and a coil, wherein the coil is configured to be wrapped around the first pole piece proximate the first pole piece second end.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: May 18, 2021
    Assignee: HARCO SEMCO, LLC
    Inventor: Robert A. Croce, Jr.
  • Patent number: 11011956
    Abstract: A vehicle driving apparatus including: a rotating machine including a rotor and a stator; a motor case storing therein the rotating machine and fastened to a non-rotary member; and an intermediate member including (i) a main body having a flat plate shape and (ii) a protrusion which protrudes in a direction of an axis of the rotating machine from a surface of the main body on a side of the rotating machine and which has an annular shape surrounding the axis. The protrusion of the intermediate member includes a plurality of stator fastening portions through which the stator of the rotating machine is fastened to the intermediate member. The intermediate member is fastened to a high rigidity portion of the motor case that has a higher rigidity than the other portion of the motor case.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: May 18, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Nao Uchibori
  • Patent number: 11011966
    Abstract: An electric machine system disclosed herein comprises first and second electric machines configured to drive a load. The first electric machine has a plurality of first rotors. The second electric machine has a plurality of second rotors. At least one of the second rotors is indexed relative to a respective one of the first rotors to, in use, provide a torque phase offset between the first and second electric machines. A shaft is coupled to the load and connects the respective one of the first rotors with the at least one of the second rotors. The respective one of the first rotors is coaxial with and axially spaced apart from the at least one of the second rotors.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: May 18, 2021
    Assignee: PRATT & WHITNEY CANADA CORP.
    Inventors: Eric Latulipe, Richard Freer
  • Patent number: 11002283
    Abstract: A magnetic bearing for a turbomachine includes a stator fixable to a structure of a turbomachine; a rotor magnetically coupled to the stator and defining a rotation axis, the rotor having a front central surface, a rear central surface opposite to the front central surface and an external surface with respect to the rotation axis; the rotor is provided with an internal channel configured to displace cooling fluid.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: May 11, 2021
    Assignee: NUOVO PIGNONE TECNOLOGIE SRL
    Inventors: Matteo Dozzini, Manuele Bigi, Duccio Fioravanti, Massimiliano Ortiz Neri
  • Patent number: 11001482
    Abstract: Methods and systems are provided for a winch including a motor and a contactor assembly coupled around the motor. In one example, the contactor assembly is coupled around and in face-sharing contact with a portion of an outer surface of the motor. Additionally, the contactor assembly may include two or more coils spaced apart from one another within the contactor assembly.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: May 11, 2021
    Assignee: WARN INDUSTRIES, INC.
    Inventors: Darren G. Fretz, Bryan Averill, Clark Brumet, Thomas Paasch, Kevin Christensen
  • Patent number: 10998802
    Abstract: A hybrid induction motor includes a fixed stator, an independently rotating outer rotor, and an inner rotor fixed to a motor shaft. The outer rotor is designed to have a low moment of inertia and includes angularly spaced apart first bars and permanent magnets on an inner surface of the outer rotor. The inner rotor includes angularly spaced apart second bars and interior flux barriers aligned with the second bars. The outer rotor is initially accelerated by cooperation of a rotating stator magnetic field with the first bars. As the outer rotor accelerates towards synchronous RPM, a rotating magnetic field of the permanent magnets cooperate with the second bars of the inner rotor to accelerate the inner rotor. At near synchronous speed the rotating stator magnetic field reaches through the outer rotor and into the inner rotor coupling the two rotors for efficient permanent magnet operation.
    Type: Grant
    Filed: February 21, 2017
    Date of Patent: May 4, 2021
    Inventor: Louis J. Finkle
  • Patent number: 10998806
    Abstract: An electric machine system described herein comprises a first and second electric machines configured to drive a load. The first electric machine has a plurality of first rotors driven using electric power having a first phase. The second electric machine has a plurality of second rotors driven using electric power having a second phase. The second phase differs from the first phase. Each of one or more shafts connects a first rotor with a second rotor. The first rotor is coaxial with and axially spaced apart from the second rotor.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: May 4, 2021
    Assignee: PRATT & WHITNEY CANADA CORP.
    Inventors: Eric Latulipe, Richard Freer
  • Patent number: 10978939
    Abstract: An electric actuator includes a first wiring member with a first connection portion exposed to one side in an axial-direction of a first case and a second wiring member with a second connection portion exposed to another side in the axial-direction of a second case, the first and second connection portions each having two opposing portions that respectively oppose in first and second directions with first and second gaps therebetween, the first gap having a narrow portion and a wide portion (larger in the first direction) connected thereto on the other side in the axial-direction, the second gap having a narrow portion and a wide portion (larger in the second direction) connected thereto on the one side in the axial-direction, and the first and second gaps overlapping at least partially when the first and second case are fixed, and the first and second connection portions are electrically connected.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: April 13, 2021
    Assignee: NIDEC TOSOK CORPORATION
    Inventors: Hiroshi Shirai, Shuichi Kinjo, Yutaka Uematsu, Kenichi Ozawa
  • Patent number: 10971983
    Abstract: The present invention relates to the technical field of electronic products, and provides a linear vibration motor. The linear vibration motor comprises a motor housing, a stator, a vibrator, and two elastic supports for suspending the vibrator within the motor housing, for supporting the vibrator and for providing elastic restoring forces, wherein the elastic supports are located at two ends of the vibrator in a vibration direction respectively. Each of the elastic supports is made up of a plurality of elastic sheets whose one ends are fixedly connected in sequence, which are arranged side by side and which have C-shaped openings respectively. Each of the elastic supports comprises a first connection point fixedly connected to the vibrator and a second connection point fixedly connected to the inner wall of the motor housing.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: April 6, 2021
    Assignee: GOERTEK INC.
    Inventors: Yueguang Zhu, Baoyu Liu, Dezhang Shi
  • Patent number: 10965181
    Abstract: An electric drive device includes a housing with a motor-housing-side annular groove portion formed on an outer peripheral surface of an end surface portion of the housing, on an opposite side to an output portion of a rotation shaft of an electric motor section. The groove portion is formed by an annular groove retreating inward in the radial direction orthogonal to the axial line of the housing. A metal-cover-side distal end portion is formed at the opening end of a metal cover covering an electronic control unit that controls the electric motor section, and faces the groove from the outer side. A space between the groove portion and the distal end portion is filled with a liquid sealant, and an annular inclined surface is inclined so it is widened outward in the radial direction of the metal cover is formed on the inner peripheral surface of the groove portion.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: March 30, 2021
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventor: Keiji Hamada
  • Patent number: 10965195
    Abstract: A geared motor (1) for a motor-vehicle wiping system including an electric motor (2) is disclosed. The geared motor has a rotor (20) including magnetic elements, a stator (21) having the electromagnetic excitation windings, a rotary shaft (22) rigidly connected to the rotor, a reduction gear (3) linking the rotary shaft (22) and an output shaft of the geared motor, and a casing (4) forming a protective envelope for said reduction gear or the electric motor (2). The reduction gear (3) includes a worm screw and worm wheel gear, the worm screw (30) being rigidly connected to the rotary shaft of the rotor (22), the worm wheel (31) rigidly connected to an output shaft (8) of the geared motor, bearing means (23, 24) for guiding the rotary shaft of the rotor (22) in rotation in relation to the casing (4), and a determination device for determining the angular position of the rotor including a multi-pole magnet (5) that is rigidly connected to the rotary shaft (22) of the rotor (20).
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: March 30, 2021
    Assignee: Valeo Systèmes d'Essuyage
    Inventor: Jose Luis Herrada
  • Patent number: 10965182
    Abstract: A drive unit for a hybrid module includes a housing assembly and an electric motor including a stator and a rotor. The stator is fixed to the housing assembly. The drive unit further includes an assembly configured for rotatably connecting the rotor to an internal combustion engine The assembly includes a shaft configured for connecting to the internal combustion engine, a rear ball bearing on the shaft and a bearing housing on an outer race of the rear ball bearing. The bearing housing axially abuts the rear ball bearing so the rear ball bearing limits rearward axial movement of the bearing housing relative to the shaft. In other words, axial thrust from the bearing housing is transferred to the shaft by the axial load carrying capacity of the ball bearing.
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: March 30, 2021
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventor: Ayyalraju Satyaseelan
  • Patent number: 10958147
    Abstract: A magnetically continuous winding includes a first coil and at least one additional coil substantially fixed in place in at least one direction with respect to a position of the first coil. A core formed by a resin is applied to the first coil and the at least one additional coil to substantially bind the first coil and the at least one additional coil.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: March 23, 2021
    Assignee: HYPERLOOP TECHNOLOGIES, INC.
    Inventors: James Dorris, Andrew Doyle, Brogan Bambrogan, Joshua Giegel
  • Patent number: 10954996
    Abstract: A fluid bearing for operably connecting a shaft to a center housing of a turbocharger is provided. The fluid bearing includes a single-piece bearing sleeve defining a bore between first and second ends that each form a thrust face. The sleeve includes first and second bearing portions proximal to an associated one of the first and second ends, and a shank connecting the first and second bearing portions. Each of the first and second bearing portions includes an outer bearing surface defining a maximum outer diameter, and each of the first and second bearing portions includes an inner bearing surface defining a minimum inner diameter for radially supporting the shaft in the bore. The inner bearing surface is a continuous surface free of grooves. The sleeve has a wall thickness defining oil passages spaced from the inner bearing surface and configured to supply oil to the thrust face.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: March 23, 2021
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Louis P. Begin, Dingfeng Deng, Yuchuan Liu