Patents Examined by Mohamad A. Musleh
  • Patent number: 11456139
    Abstract: An overload relay is disclosed in which a single operator coil is controlled for both tripping and resetting. A permanent magnet and a spring make the device bi-stable, so the coil may be unpowered when in the trip and reset states. Energization of the coil overcomes the magnet to allow tripping, while energization in an opposite direction adds to the magnet force to reset the device. An electromagnetic activation path overrides a mechanical activation path for electromagnetic tripping despite attempted manual resetting. The device may be pulse width modulated to reduce power consumption.
    Type: Grant
    Filed: February 23, 2021
    Date of Patent: September 27, 2022
    Assignee: Rockwell Automation Technologies, Inc.
    Inventor: Andrew Edward Carlson
  • Patent number: 11450463
    Abstract: A programmable permanent magnet actuator, a magnetic field generation apparatus and a method of controlling thereof. The actuator has a first body that is a ferromagnetic material, a second body that is a single magnetized ferromagnet and a magnetic field generation device associable to the second body to generate a magnetic field in proximity with the second body. The actuator also has a controller adapted to control the magnetic field generation device to generate a controlled magnetic field. The controlled magnetic field is adapted to modify a magnetization of the second body such as to produce with the second body a required magnetic field to move one of the first or the second body with respect to one another according to a desired position or a desired torque. The desired position or the desired torque is maintained even after the application of the controlled magnetic field.
    Type: Grant
    Filed: February 1, 2019
    Date of Patent: September 20, 2022
    Inventors: Jean-Baptiste Chossat, Vincent Duchaine, Jean-Simon Lavertu
  • Patent number: 11437892
    Abstract: An offset of an output voltage of a magnetic sensor caused by an external magnetic field is removed. A motor according to a disclosed embodiment includes: a first magnetic sensor that detects a rotational position of a rotor; a second magnetic sensor that is arranged at a predetermined mechanical angle with respect to the first magnetic sensor and detects the rotational position of the rotor; a signal amplifier that amplifies a difference between a first signal which is a signal output from the first magnetic sensor and a second signal which is a signal output from the second magnetic sensor; and a pulse signal generator that converts an output signal of the signal amplifier into a pulse signal.
    Type: Grant
    Filed: April 6, 2020
    Date of Patent: September 6, 2022
    Assignee: NIDEC CORPORATION
    Inventors: Masaki Yoshinaga, Tomohiro Fukumura, Taro Amagai, Akiko Ikeda, Kengo Araki
  • Patent number: 11431230
    Abstract: An offset of an output voltage of a magnetic sensor caused by an external magnetic field is removed. A motor according to a disclosed embodiment includes: a first magnetic sensor that detects a rotational position of a rotor; a second magnetic sensor arranged at a position shifted by ?/N in a rotation direction of the rotor with respect to the first magnetic sensor when the number of pole pairs is N; a signal amplifier that amplifies a difference between a first signal which is a signal output from the first magnetic sensor and a second signal which is a signal output from the second magnetic sensor; and a pulse signal generation unit that converts an output signal of the signal amplifier into a pulse signal.
    Type: Grant
    Filed: April 6, 2020
    Date of Patent: August 30, 2022
    Assignee: NIDEC CORPORATION
    Inventors: Masaki Yoshinaga, Tomohiro Fukumura, Taro Amagai, Akiko Ikeda, Kengo Araki
  • Patent number: 11430589
    Abstract: The disclosure provides a hybrid magnet structure which includes two dipole magnets assemblies arranged oppositely, and each dipole magnet assembly includes a permanent magnet, two iron cores, and a moveable magnetic field shunt element. The hybrid magnet structure is adapted to focus particle beams of different positions by applying an adjustable gradient magnetic field in the horizontal or vertical direction of the particle beam. By passing the charged particle beams through the gradient magnetic field established between the two dipole magnets, the aspect of focusing the charged particle beam is achieved. In addition, the intensity of the gradient magnetic field can be altered by adjusting the gap between the movable magnetic field shunt element and the permanent magnet, thereby controlling the particle beam size on a specific axis for different energies or masses of the charge particles.
    Type: Grant
    Filed: June 17, 2021
    Date of Patent: August 30, 2022
    Assignee: ADVANCED ION BEAM TECHNOLOGY, INC.
    Inventors: Ching-Shiang Hwang, Jyh-Chyuan Jan, Hui-Huang Chen, Yun-Liang Chu
  • Patent number: 11417464
    Abstract: Described herein are concepts, system and techniques which provide a means to construct robust high-field superconducting magnets using simple fabrication techniques and modular components that scale well toward commercialization. The resulting magnet assembly—which utilizes non-insulated, high temperature superconducting tapes (HTS) and provides for optimized coolant pathways—is inherently strong structurally, which enables maximum utilization of the high magnetic fields available with HTS technology. In addition, the concepts described herein provide for control of quench-induced current distributions within the tape stack and surrounding superstructure to safely dissipate quench energy, while at the same time obtaining acceptable magnet charge time. The net result is a structurally and thermally robust, high-field magnet assembly that is passively protected against quench fault conditions.
    Type: Grant
    Filed: June 11, 2021
    Date of Patent: August 16, 2022
    Assignees: Massachusetts Institute of Technology, Commonwealth Fusion Systems LLC
    Inventors: Brian Labombard, Robert S. Granetz, James Irby, Rui Vieira, William Beck, Daniel Brunner, Jeffrey Doody, Martin Greenwald, Zachary Hartwig, Philip Michael, Robert Mumgaard, Alexey Radovinsky, Syun'ichi Shiraiwa, Brandon N. Sorbom, John Wright, Lihua Zhou
  • Patent number: 11404192
    Abstract: A support structure for supporting a flexible display screen includes: a plurality of electromagnets and a controller electrically coupled to the plurality of electromagnets. Each electromagnet has a first surface and a second surface. The first surface is configured to be attached and secured to a flexible display screen so as to support the flexible display screen, and the second surface is at an acute angle to the first surface. When the flexible display screen is extended, the controller controls two adjacent electromagnets to repel each other. When the flexible display screen is bent, the controller controls two adjacent electromagnets to attract each other.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: August 2, 2022
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventor: Yugui Lin
  • Patent number: 11398330
    Abstract: An array of permanent magnets and magnetic materials create a large focused magnetic field capable of reducing the viscosity of blood in a human subject, and consequently reducing the blood pressure of the subject. The magnets can be arranged in highly tunable and customizable configurations suited to unique and individual applications.
    Type: Grant
    Filed: August 16, 2019
    Date of Patent: July 26, 2022
    Assignee: Magmedics, LLC
    Inventors: Mohammad Amin Khamehchi, Kasey R. Lund
  • Patent number: 11394264
    Abstract: A resistor assembly for a motor drive circuit for an electric motor assembly can have a generally circular shape. The resistor assembly includes a resistor with input and output connectors and a pair of conductor elements extending from the input and output connectors. The pair of conductor elements extend adjacent each other along a curved serpentine path so the resistor has a generally circular outer perimeter and a generally circular inner perimeter. The curved serpentine path of the pair of conductor elements allows current to flow through the pair of conductor elements so that magnetic fields generated by the current flow through the pair of conductor elements cancel each other, thereby providing the resistor with low inductance.
    Type: Grant
    Filed: January 21, 2020
    Date of Patent: July 19, 2022
    Assignee: ITT Manufacturing Enterprises LLC
    Inventors: Dean P. Williams, Lee Empringham, Liliana Vittoria De Lillo
  • Patent number: 11387028
    Abstract: A unitary magnet (1) that has an elongate shape including a first longitudinal portion (1a) having an outer contour with shapes (6) that are recessed in the direction of the inside of the unitary magnet (1), where the recessed shapes (6) extend over at least part of a length of the first portion (1a) and/or extending, over at least part of the perimeter of the unitary magnet, (1) transversely to a longitudinal axis of the unitary magnet near at least one longitudinal end of the unitary magnet (1).
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: July 12, 2022
    Assignee: Whylot SAS
    Inventors: Romain Ravaud, Loic Mayeur, Vasile Mihaila
  • Patent number: 11387061
    Abstract: Disclosed herein are passive triggering mechanisms for activation of pyrotechnic features within electrical switching devices, such as contactor devices and fuse devices. The activation of the pyrotechnic features is configured to change the configuration of the internal components of the switching device and prevent current flow through the device. In some embodiments, the triggering mechanisms comprise features that respond to a magnetic field, such as a reed switch. In some embodiments, threshold strength of a magnetic field needed to trigger the passive triggering mechanism, which corresponds to a threshold level of current running through the switching devices indicating a dangerous overcurrent, can be adjusted based upon the distance between the passive triggering mechanism and a portion of the device such as a power terminal or feature connected to a power terminal.
    Type: Grant
    Filed: February 18, 2020
    Date of Patent: July 12, 2022
    Assignee: Gigavac, LLC
    Inventors: Daniel Sullivan, Murray Stephan McTigue, Michael Henry Molyneux
  • Patent number: 11387716
    Abstract: A redundant circuit device including a first system circuit and a second system circuit having identical function, the redundant circuit device comprises: a substrate that is partitioned into a first region in which a part of the first system circuit is provided and a second region in which a part of the second system circuit is provided, each of the first region and the second region having a printed wiring; a first mount component that is included in the first system circuit, has three or more pins, and is surface-mounted on one surface of the substrate; and a second mount component that is included in the second system circuit, has an identical number of pins as that of the first mount component and having an identical function as that of the first mount component, and is surface-mounted on the one surface.
    Type: Grant
    Filed: May 14, 2020
    Date of Patent: July 12, 2022
    Assignee: DENSO CORPORATION
    Inventors: Jyun Kurihara, Hiroyasu Sugiura
  • Patent number: 11380467
    Abstract: Embodiments of the present disclosure relate to methods and systems for switching a magnetic field external to a magnet assembly having two permanent magnets, including a fixed permanent magnet portion and a switching permanent magnet portion, where a switching magnetic field is used to switch the magnetization of the switching permanent magnet portion, but not switch the magnetization of the fixed permanent magnet portion. In this way, the fixed permanent magnet portion has a fixed magnetization, such that the direction of magnetization of the fixed permanent magnet portion remains the same during switching of the magnetization of the switching permanent magnet portion, and the switching permanent magnet portion has a switching magnetization, such that the direction of magnetization of the switching permanent magnet portion is switched during switching of the magnetization of the switching permanent magnet portion.
    Type: Grant
    Filed: March 1, 2021
    Date of Patent: July 5, 2022
    Assignee: University of Florida Research Foundation, Inc.
    Inventors: David P. Arnold, Camilo Velez Cuervo
  • Patent number: 11374329
    Abstract: The invention relates to an electromagnetic toroidal impeller in the field of physics applied to electromagnetism. The invention comprises a cylindrical arrangement of superconducting antennas (9) which are separated by a dielectric (8) over a superconducting cylindrical plate (7) and exposed in a resonant cavity (6). The radiation in the cavity is incident on the force ring having a superconducting surface (4) containing ferrite (11), the coolant (5) introduced through the pipes (1) flowing through the toroidal interior of same. The force received in the ring (4) is transmitted via the supporting members (3) to the support (2). The cavity is thermally insulated with insulation (12) and is cooled with the liquid (10) through the pipes (14). The invention provides a device capable of generating driving force from the conversion of the energy available in electromagnetic waves that are contained in a resonant cavity.
    Type: Grant
    Filed: April 26, 2018
    Date of Patent: June 28, 2022
    Inventor: Rodrigo Botero Montano
  • Patent number: 11374448
    Abstract: A motor for a laundry appliance includes a drive shaft coupled to a drum at a first end. The rotor frame is coupled proximate the second end of the drive shaft, where the rotor frame includes at least one polymeric material. A central hub includes a core and a perimetrical ring that extends circumferentially around the core. A plurality of recesses are defined within a planar surface of the perimetrical ring, wherein a portion of the polymeric material is received within the plurality of recesses to secure the rotor frame to the central hub.
    Type: Grant
    Filed: November 23, 2020
    Date of Patent: June 28, 2022
    Assignee: Whirlpool Corporation
    Inventors: Krati Bhargava, James Hull
  • Patent number: 11361892
    Abstract: An versatile modular magnetic system, using multipolar magnets with poles aligned on the X, Y and Z axis for holding pieces in alignment, expandable on the X, Y, and Z axis with pieces sandwiched between magnets, magnetic on two faces, magnetically and mechanically holds to surfaces, magnetically and mechanically holds to itself, opens and closes, magnet gaps adjusted to optimize magnet material.
    Type: Grant
    Filed: February 17, 2020
    Date of Patent: June 14, 2022
    Inventor: John E. Nellessen
  • Patent number: 11348713
    Abstract: A configuration of magnets for coupling an accessory to an article of clothing, including a first plurality of magnets arranged within a casing with an upper surface and a lower surface opposite the upper surface. Each of the first plurality of magnets having a first magnetic polarity and a second magnetic polarity opposite the first magnetic polarity. Each of the first plurality of magnets positioned within the casing with a minimum separation between each of the first plurality of magnets. Each of the first plurality of magnets oriented such that the first magnetic polarity emanates from the upper surface of the casing. An article of clothing including a portion in which the casing is embedded.
    Type: Grant
    Filed: April 15, 2019
    Date of Patent: May 31, 2022
    Inventors: Leartis Jay McMillan, II, Haley Compton
  • Patent number: 11348714
    Abstract: A magnetic member for attachment to a surface has a first layer of material connected to a second layer of material and a plurality of spaced metal strips or metal particles are disposed between the first and second layers of material. The spaced metal strips or metal particles are adapted to magnetically attract a magnetic material attached to an object.
    Type: Grant
    Filed: March 17, 2020
    Date of Patent: May 31, 2022
    Inventor: Jon Jay Goeders
  • Patent number: 11348716
    Abstract: Systems and methods for reclaiming and remagnetizing permanent magnet motors such as may be used in electric submersible pumps. In one embodiment, a method includes removing a permanent magnet rotor assembly from a motor and heating the rotor to burn off the residual oil and evaporate water in between laminations of the rotor and on the rotor surface. The rotor should be heated to a temperature that is above a flashpoint of oil on the rotor and below a Curie temperature of a material of a set of permanent magnets in the rotor (e.g., at least 600° F. for at least 12 hours). The heating may partially or fully demagnetize the permanent magnets in the rotor. The exposed surfaces of the rotor are then cleaned and the permanent magnets in the rotor are remagnetized using a specialized magnetizing fixture.
    Type: Grant
    Filed: December 30, 2020
    Date of Patent: May 31, 2022
    Assignee: BAKER HUGHES OILFIELD OPERATIONS LLC
    Inventors: Yong Li, Howard G. Thompson, Arslan Amjad, James C. Clingman, Randal Perisho
  • Patent number: 11335486
    Abstract: Systems and methods of forming articles using electromagnetic radiation are disclosed. In some aspects, the system includes a plurality of forming modules movably mounted relative to an infeed mechanism. The infeed mechanism is configured to supply pre-form articles to the plurality of forming modules, and each of the plurality of forming modules includes a multi-segment mold disposed about an electromagnetic coil. The electromagnetic coil is configured to impart an electromagnetic force on the pre-form articles when supplied with electrical energy that urges the pre-form articles into contact with the multi-segment mold to produce the formed containers.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: May 17, 2022
    Assignee: Belvac Production Machinery Inc.
    Inventor: Richard H. Lee