With Permanent Magnet Patents (Class 335/229)
  • Patent number: 11988180
    Abstract: The present invention provides a permanent magnet-electromagnet synergistic coupling-based high-speed solenoid valve with a high dynamic response and a low rebound, including a shell and an iron core. The iron core is installed in the shell, an axial center through hole is formed in a middle of the iron core, a spring limiting sleeve is installed in the axial center through hole, an armature and a reset spring cavity are sequentially formed below the iron core, an upper portion of a valve rod is located in the spring limiting sleeve, an upper disc permanent magnet, a lower disc permanent magnet and a spring washer are arranged in the spring limiting sleeve, and a giant magnetostrictor is installed between the upper disc permanent magnet and the lower disc permanent magnet. By means of the present invention, electromagnetic force generated during pickup of the armature can be effectively improved.
    Type: Grant
    Filed: October 3, 2022
    Date of Patent: May 21, 2024
    Assignee: HARBIN ENGINEERING UNIVERSITY
    Inventors: Jianhui Zhao, Xiangdong Lu, Heng Zhang, Yu Xu, Weilong Liu
  • Patent number: 11967874
    Abstract: The present disclosure discloses a linear motor including a housing with an accommodation space, a vibrator and a stator received in the accommodation space and an elastic support fixed on the vibrator and configured to suspend the vibrator in the accommodation space; the stator includes a coil and a copper ring both opposite to the vibrator; the copper ring and the coil are arranged on two opposite sides of the vibrator separately along a first direction perpendicular with a vibration direction of the vibrator. The copper ring serves as a damper providing electromagnetic resilience for the vibrator, effectively improve the automation and efficiency of the manufacture of the linear vibration motor.
    Type: Grant
    Filed: December 3, 2021
    Date of Patent: April 23, 2024
    Assignee: AAC Microtech (Changzhou) Co., Ltd.
    Inventors: Ziang Li, Zhiyong Cui, Jie Ma, Lubin Mao
  • Patent number: 11959966
    Abstract: A method for estimating the state of an electrical switching apparatus, the switching apparatus including separable electrical contacts configured to be coupled to an electrical conductor, and an electromagnetic actuator, controlled by a control circuit and including a movable core, coupled to the separable contacts, and a coil, which is passed through by a coil current. The method: includes measuring, by means of sensors associated with the coil, values of the coil current in a time interval, while the electromagnetic actuator is kept in a stable and in particular closed position, and computing, by means of an electronic control device of the switching apparatus, one or more values of a magnetic flux of the coil from the measured coil-current values, and using coil-voltage and coil-resistance values known beforehand.
    Type: Grant
    Filed: February 2, 2022
    Date of Patent: April 16, 2024
    Assignee: Schneider Electric Industries SAS
    Inventors: Rémy Orban, Vincent Geffroy
  • Patent number: 11946829
    Abstract: A tire sensor device for monitoring a condition of a tire includes a plurality of sensors including a temperature sensor and an accelerometer. The tire sensing device further includes memory configured to store data received by the plurality of sensors and one or more processors coupled with the memory. The one or more processors are configured to perform one or more initial processing operations on the data received by the plurality of sensors. The tire sensor device further includes an antenna, coupled with the one or more processors, configured to wirelessly communicate with one or more external devices.
    Type: Grant
    Filed: August 12, 2019
    Date of Patent: April 2, 2024
    Inventors: Sunjay Dodani, Wing-Hong Andrew Ko
  • Patent number: 11929204
    Abstract: A magnetic drive includes a base plate, an energy source mounted to the base plate, a control unit, a first magnetic field generator, and a switching circuit. The energy source and the first magnetic field generator are interconnected by the switching circuit. The control unit is configured to control the switching circuit to provide energy to the first magnetic field generator. The first magnetic field generator is configured to generate a magnetic field when being supplied with energy. The control unit is configured to control the switching unit to achieve a desired polarity of the generated magnetic field to interact with the external magnetic field so that a rotational force selectively in clockwise or counterclockwise direction is generated to rotate the first magnetic field generator within the external magnetic field in a desired direction of rotation.
    Type: Grant
    Filed: April 8, 2020
    Date of Patent: March 12, 2024
    Assignee: TOMORROW'S MOTION GMBH
    Inventor: Lutz May
  • Patent number: 11916462
    Abstract: A harvesting system that includes a dynamo with a rotor and a stator, a push magnet that is attached to the rotor or is a part of it, a moving magnet that moves from a first position to a second position, and a push back magnet. The repulsive magnetic force that is exerted by the moving magnet on the push magnet in the second position is greater than that force in the first position. The moving magnet moves from the first position to the second position and causes the rotor to rotate from a dynamo first position to a dynamo second position that causes the dynamo to produce current. When the moving magnet moves back to the first position the dynamo returns to its first position due to magnetic force that the push back magnet exerts on the push magnet.
    Type: Grant
    Filed: January 26, 2022
    Date of Patent: February 27, 2024
    Inventors: Michael Haronian, Danny Stanislav Korotaev
  • Patent number: 11908654
    Abstract: To realize both toughness and size reduction of a safety switch. A safety switch is a safety switch into and from which a bolt of an actuator is inserted and pulled out. The safety switch includes a casing having a shape elongated along a first direction, a metal head having a receiving space for receiving the bolt of the actuator and provided on a first end side of the casing in the first direction, a detector for detecting a first state in which the bolt is received in the receiving space, a lock mechanism, a switching device and a first attachment portion provided in the head and having a first attachment hole into which a first attachment member is inserted.
    Type: Grant
    Filed: December 9, 2022
    Date of Patent: February 20, 2024
    Assignee: KEYENCE CORPORATION
    Inventors: Choryon Oh, Yu Babasaki, Lye Tatt Cheah
  • Patent number: 11879328
    Abstract: A method and a system for collecting data at a fixed point in a wellbore are provided. An exemplary method includes dropping an untethered measurement tool (UMT) in the wellbore, switching a first magnet to drop a ballast from the UMT at a ballast drop condition, switching a second magnet to attach the UMT to a wall of the wellbore at a wall attachment condition. Data is collected in the UMT while the UMT is attached to the wall of the wellbore. The second magnet is switched to release the UMT from the wall of the wellbore at a wall release condition. The UMT is collected from the wellbore and the data is downloaded from the UMT.
    Type: Grant
    Filed: August 5, 2021
    Date of Patent: January 23, 2024
    Assignee: SAUDI ARABIAN OIL COMPANY
    Inventors: Huseyin Rahmi Seren, Max Deffenbaugh, Erjola Buzi
  • Patent number: 11825747
    Abstract: An actuator has a plurality of pairs of a flexible electrode having flexibility, and a base electrode having an opposed face that is opposed to the flexible electrode and is covered with an insulating layer. The flexible electrode is configured to deform to get closer to the opposed face when a voltage is applied to the flexible electrode and the base electrode. Each of the pairs is located on the same axis, and adjacent ones of the pairs are connected to each other. The axis intersects with the opposed face of the base electrode of each of the pairs. The base electrode of each of the pairs is divided into a plurality of electrode portions insulated from each other, and the voltage is individually applied to the electrode portions.
    Type: Grant
    Filed: April 7, 2022
    Date of Patent: November 21, 2023
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Shuji Nakagawa
  • Patent number: 11817258
    Abstract: Coil-based actuators for use in opening and closing the separable contacts of circuit interrupters provide increased initial velocity for opening strokes and damping at the end of opening strokes. Electronics for adjusting the current profile of current supplied to coil-based actuators additionally provide increased initial velocity for opening strokes and damping at the conclusion of opening strokes.
    Type: Grant
    Filed: September 20, 2022
    Date of Patent: November 14, 2023
    Assignee: EATON INTELLIGENT POWER LIMITED
    Inventors: Koustubh Dnyandeo Ashtekar, Li Yu
  • Patent number: 11778385
    Abstract: An electromagnetic transducer, including at least one active air gap, wherein the active air gap is a non-axial air gap. In some instances, the electromagnetic transducer of claim further comprises a coil configured to generate a dynamic magnetic field, the coil having a longitudinal axis, wherein the active air gap extends in the direction of the longitudinal axis of the coil.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: October 3, 2023
    Assignee: Cochlear Limited
    Inventor: Tommy Bergs
  • Patent number: 11760606
    Abstract: An illustrative example elevator sill assembly includes a sill plate and at least one support arm secured to the sill plate. A mounting bracket is configured to be mounted to an elevator car. The support arm is supported on the mounting bracket to allow the support arm to pivot relative to the mounting bracket. At least one linear actuator has a moving portion that moves in a vertical direction to cause the at least one support arm to pivot relative to the mounting bracket to thereby cause the sill plate to pivot from a stored position to an actuated position.
    Type: Grant
    Filed: June 17, 2021
    Date of Patent: September 19, 2023
    Assignee: OTIS ELEVATOR COMPANY
    Inventor: Guohong Hu
  • Patent number: 11747410
    Abstract: A magnetic sensor device includes a magnetic field converter that receives an input magnetic field input along a first direction and outputs an output magnetic field along a second direction, which is orthogonal to the first direction. A magnetic field detector is provided at a position where the output magnetic field is applied. A magnetic shield shields external magnetic fields along a third direction, which is orthogonal to both the first direction and the second direction. When viewed along the first direction, the magnetic field converter has a shape such that the length in the third direction is greater than the length in the second direction. When viewed along the first direction, the magnetic shield is provided at a position overlapping the magnetic field converter and the magnetic field detector, and the magnetic field transmittance of the external magnetic field is 1-30%.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: September 5, 2023
    Assignee: TDK Corporation
    Inventor: Yongfu Cai
  • Patent number: 11714490
    Abstract: A radial magnet actuator includes a housing having an inner space, a moving body including a mass body provided to relatively move in the inner space, and a hollow radial magnet provided in the mass body, an elastic member configured to elastically support the moving body from one side of the inner space, and a hollow coil part provided at an upper side of the inner space, with at least a portion inserted into the hollow of the radial magnet, wherein the radial magnet is magnetized in a radial direction.
    Type: Grant
    Filed: November 7, 2019
    Date of Patent: August 1, 2023
    Assignee: CK MATERIALS LAB CO., LTD.
    Inventors: Hyeong Jun Kim, Jong Hun Lee, Jong Ki Lee, Ihn Beom Lee
  • Patent number: 11698143
    Abstract: A latching assembly for a solenoid operated valve includes a solenoid assembly including a core defining a bore extending along an axis, and a coil mounted to the core and disposed about the axis. The solenoid operated valve further includes an armature assembly including an armature stud disposed at least partially within the bore and extending along the axis, an armature disc disposed radially about a portion of the armature stud and defining at least one window, and at least one stationary magnet respectively disposed within the at least one window.
    Type: Grant
    Filed: March 11, 2021
    Date of Patent: July 11, 2023
    Assignee: Marotta Controls, Inc.
    Inventors: Andrew Biss, Alexander Colletti, Christopher Strianse
  • Patent number: 11700490
    Abstract: The present disclosure provides a speaker, including a frame, a vibration system, a magnetic circuit system, the vibration system includes a first diaphragm and a second diaphragm which are fixed to two opposite sides of the frame, a first voice coil to drive the first diaphragm to vibrate, and a second voice coil assembly to drive the second diaphragm to vibrate. The vibration system further includes a first elastic wave assembly and a second elastic wave assembly which are fixed to the frame and are spaced from each other. The first elastic wave assembly and the second elastic wave assembly are in staggered distribution and antiphase vibration. By means of the staggered distribution of the first elastic wave assembly and the second elastic wave assembly, the first elastic wave assembly and the second elastic wave assembly make reasonable use of an internal space of the speaker.
    Type: Grant
    Filed: December 10, 2021
    Date of Patent: July 11, 2023
    Assignee: AAC Microtech (Changzhou) Co., Ltd.
    Inventors: Keyong Zhou, Xudong Yan
  • Patent number: 11682511
    Abstract: An electronic apparatus includes a rotatable operation member that can be rotationally operated, a base member, a magnet having alternately magnetized N and S poles and rotatable integrally with the rotatable operation member, and first and second magnetic members disposed so that the magnet is disposed between them in an axial direction of a rotational center axis of the rotatable operation member and having a plurality of comb tooth portions. In the axial direction, the first magnetic member, the magnet, and the second magnetic member are disposed on an opposite side of the base member from the rotatable operation member. A part of an outer circumferential portion of the rotatable operation member is exposed to an outside from an opening provided on an exterior member of the electronic apparatus. The magnet, the first magnetic member, and the second magnetic member are covered with the exterior member.
    Type: Grant
    Filed: May 19, 2022
    Date of Patent: June 20, 2023
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Shogo Satomura, Yoshikazu Asai, Takahiro Akimoto, Sho Nagatsu, Jun Kamiya
  • Patent number: 11656653
    Abstract: A wireless energy transfer system includes an electronic device having at least two members, each housing at least a portion of the electronic device pivotably coupled via a number of hinges. A hinge member is disposed proximate at least some of the number of hinges. At least one receiver coil may be disposed in, on, or about the hinge member. Removing the receiver coil from the members housing the electronic device advantageously permits thinning of the members and a beneficial reduction in height of the electronic device. A power supply may include a number of power supply coils disposed in, on, or about a power supply member. Some or all of the power supply coils may wirelessly couple to the at least one receiver coil via an electromagnetic field and transfer energy to the electronic device when the electronic device is disposed proximate the power supply.
    Type: Grant
    Filed: February 19, 2021
    Date of Patent: May 23, 2023
    Assignee: Intel Corporation
    Inventor: David A. Rittenhouse
  • Patent number: 11612257
    Abstract: A valve body including an outer wall, an inner wall, and a connecting wall is provided. The outer wall has a first upper surface, a first side surface, and a second side surface. At least one of the first side surface and the second side surface has a fluid hole. The inner wall is disposed within the outer wall. The inner wall shields the at least one fluid hole. A third side surface has an inner opening. The connecting wall is disposed within the outer wall. The connecting wall connects the inner opening of the inner wall and the fluid hole of the outer wall. Furthermore, an electromagnet switch valve and a bed structure are also provided.
    Type: Grant
    Filed: November 5, 2020
    Date of Patent: March 28, 2023
    Assignee: Brilliant Product Design Co., Ltd.
    Inventors: Ying-Chun Yen, Yuan-Chen Chen
  • Patent number: 11573636
    Abstract: A haptic actuator may include a housing, a stator coupled to a medial interior portion of the housing, and a field member within the housing and having an opening receiving the stator therein. The field member may include a frame, and at least one permanent magnet carried by the frame. The at least one permanent magnet may include side-by-side magnetic segments having alternating magnetic polarizations with at least one non-vertical magnetic polarization transition zone between adjacent magnetic segments.
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: February 7, 2023
    Assignee: Apple Inc.
    Inventors: Darya Amin-Shahidi, Denis G. Chen, Alex M. Lee, Scott D. Ridel
  • Patent number: 11569721
    Abstract: A haptic actuator may include a housing having opposing first and second ends and first and second coils carried by the housing adjacent respective first and second ends thereof. Each coil may have a respective passageway therethrough. The actuator may include a field member including first and second masses adjacent respective first and second ends of the housing, and a permanent magnet having first and second ends coupled to respective ones of the first and second masses. The actuator may also include first and second flexures mounting respective first and second masses to the respective first and second ends of the housing so that the field member is reciprocally movable within the passageways of the coils responsive to powering the coils and so that the ends of the permanent magnet are within respective passageways of the coils when the coils are unpowered.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: January 31, 2023
    Assignee: Apple Inc.
    Inventors: Yi-Heng Sen, Alex M. Lee, Alex J. Speltz
  • Patent number: 11551860
    Abstract: An ignition coil includes a center core, a first core member, and a second core member. The first core member includes a first core-facing portion facing a front core surface of the center core and a first core side portion extending rearward from the first core-facing portion. The second core member includes a second core-facing portion facing a rear core surface of the center core and a second core side portion extending frontward from the second core-facing portion. The first core-facing portion has an end surface contacting a portion of the second core side portion to create a first contact region. Similarly, the second core-facing portion has an end surface contacting a portion of the first core side portion to create a second contact region. The first and second contact regions are shaped to approach frontward close to the first core side portion. This structure enhances productivity of the ignition coil.
    Type: Grant
    Filed: February 9, 2021
    Date of Patent: January 10, 2023
    Assignee: DENSO CORPORATION
    Inventors: Norihiro Adachi, Junichi Wada
  • Patent number: 11501934
    Abstract: A key arrangement includes an activation element, a switch, a mechanical counterforce generating device, and a permanent magnet arrangement. The switch has at least a first state and a second state. The activation element has a basic state and an activation state and is configured to, in case of activation by a user, permit a movement from the basic state into the activation state, and in case of the movement into the activation state to permit a change in the state of the switch. The mechanical counterforce generating device is configured to generate, in case of an activation of the activation element, a first counterforce at least in certain areas. The permanent magnet arrangement is configured to generate, in case of activation of the activation element, a second counterforce at least in certain areas.
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: November 15, 2022
    Assignee: Dr. Ing. h.c. F. Porsche Aktiengesellschaft
    Inventors: Michael Weidner, Manuel Kuehner
  • Patent number: 11482361
    Abstract: Coil-based actuators for use in opening and closing the separable contacts of circuit interrupters provide increased initial velocity for opening strokes and damping at the end of opening strokes. Electronics for adjusting the current profile of current supplied to coil-based actuators additionally provide increased initial velocity for opening strokes and damping at the conclusion of opening strokes.
    Type: Grant
    Filed: September 1, 2020
    Date of Patent: October 25, 2022
    Assignee: EATON INTELLIGENT POWER LIMITED
    Inventors: Koustubh Dnyandeo Ashtekar, Li Yu
  • Patent number: 11435007
    Abstract: A process component includes a first connection, a second connection, and an adjusting element arranged in a hollow space fluidically connecting the first connection to the second connection and that can be brought into a first position and second position in an axial direction within the hollow space. The component includes a permanent magnet, a first electrical coil, and a second electrical coil arranged in succession in the axial direction to create a simple process component whose size can be effectively scaled. The magnet, adjusting element, and a yoke form a first closed magnetic circuit in the first position and a second closed magnetic circuit in the second position. The first and second coil respectively compensate for the first circuit and the second circuit. The hollow space and adjusting element are shaped such that the valve can be penetrated by a fluid flow formed between the first and second connections.
    Type: Grant
    Filed: October 7, 2019
    Date of Patent: September 6, 2022
    Assignee: GEA Tuchenhagen GmbH
    Inventors: Wolfgang Arnold, Julius Pretterebner, Hans-peter Magnus
  • Patent number: 11424077
    Abstract: A hard start capacitor replacement unit has a plurality of capacitors in a container sized to fit in existing hard start capacitor space. The capacitors are 4 metallized film capacitors wound in a single cylindrical capacitive element. The container has a common terminal and capacitors value terminals for the plurality of capacitors, which may be connected singly or in combination to provide a selected capacitance. An electronic or other relay connects the selected capacitance in parallel with a motor run capacitor. The hard start capacitor replacement unit is thereby adapted to replace a wide variety of hard start capacitors.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: August 23, 2022
    Assignee: AmRad Manufacturing, LLC
    Inventors: Richard W. Stockman, Robert M. Stockman
  • Patent number: 11365092
    Abstract: An actuation mechanism for an elevator safety gear comprises an engagement element, at least two permanent magnets and at least one electric coil. The engagement element is movable between an engaged position in which it engages with the guide member of the elevator system and a disengaged position in which it does not engage with the guide member of the elevator system. The at least two permanent magnets are arranged in a configuration generating a repulsive force (FR) between the at least two permanent magnets and urging the engagement element towards the engaged position. The at least one electric coil is configured for generating an electromagnetic force urging the engagement element towards the disengaged position and/or for holding the engagement element in the disengaged position, when an electric current is flowing through the at least one electric coil.
    Type: Grant
    Filed: August 9, 2019
    Date of Patent: June 21, 2022
    Assignee: OTIS ELEVATOR COMPANY
    Inventor: Ruben Sanchez Munoz
  • Patent number: 11366521
    Abstract: A device for dexterous interaction in a virtual world in disclosed. The device includes a housing including a plurality of buttons and a plurality of vibration elements each associated with at least one of the plurality of buttons. An orientation sensor detects orientation of the housing, and a bearing is configured to allow the housing to freely rotate in a plurality of directions. A processor is in communication with the plurality of buttons, the plurality of vibration elements, and the orientation sensor. A transmitter/receiver unit is configured to receive data from the processor and configured to send and receive data from a central processing unit.
    Type: Grant
    Filed: November 17, 2015
    Date of Patent: June 21, 2022
    Assignee: THIKA HOLDINGS LLC
    Inventor: Vivien Cambridge
  • Patent number: 11328889
    Abstract: A circuit breaker for interrupting a direct current, in particular in a power supply system in a vehicle having a main current path that includes a switch, and having a reed relay for detecting an electric current flow across the main current path. The switch is coupled to the reed relay. Also, a use of a circuit breaker is provided.
    Type: Grant
    Filed: July 23, 2020
    Date of Patent: May 10, 2022
    Assignee: Ellenberger & Poensgen GmbH
    Inventors: Hendrik-Christian Koepf, Ernst-Dieter Wilkening
  • Patent number: 11309808
    Abstract: An electromagnetic and triboelectric hybrid energy collector for low-frequency movement is provided. The electromagnetic and triboelectric hybrid energy collector comprises an electromagnetic module, triboelectric modules and spring mass modules. The electromagnetic module includes a shell, a magnet frame, a magnet array, coil arrays, coil frames and coil magnetic conductive columns. The spring mass modules include respective springs, respective mass blocks and respective end caps. The triboelectric modules include multiple nano-friction power generation units which are connected in sequence. When the energy collector is excited to move a magnet assembly. The electromagnetic module generates voltage according to the Faraday's law of electromagnetic induction. The movement of the magnet assembly generated by external excitation may also cause contact and separation between triboelectric units to generate voltage.
    Type: Grant
    Filed: December 7, 2021
    Date of Patent: April 19, 2022
    Assignee: SHANGHAI UNIVERSITY
    Inventors: Zhongjie Li, Xuzhang Peng, Yan Peng, Jun Luo, Shaorong Xie, Huayan Pu
  • Patent number: 11227711
    Abstract: A fluid flow control valve with swiveled & compensated stroke (100) comprising a solenoid coil assembly (60), a permanent magnet (181), a bridge mounted solenoid assembly (120), a compensated swivel fulcrum (150), a counterweight arrangement (160), and a base unit arrangement (180), wherein a slender cylindrical rod (70) of the compensated swiveled fulcrum (150) is non-rotatably trapped in a fulcrum receptacle (33) of a bridge (30), a compensating spring (85) continuously presses a pair of the plurality of spherical balls (80) against a conical surface (72) of the lender cylindrical rod (70), the bridge mounted solenoid assembly (120) swivels around an axis (121), an electric supply impressed at the electrical terminals of the solenoid coil assembly (60) generates a magnetic field and the solenoid coil assembly (60) moves in an arc (61), the swiveled valve with the compensated precision stroke (100) is mountable in any orientation.
    Type: Grant
    Filed: July 29, 2020
    Date of Patent: January 18, 2022
    Assignee: ROTEX Manufacturing and Engineers Private Limited
    Inventor: Amit Shah
  • Patent number: 11165240
    Abstract: In one example, a ground fault circuit interrupter is provided. It may include a current imbalance detection circuit configured to provide a leakage signal and a main processing circuit including a processor. The leakage signal may correspond to a current imbalance between a supply path and a return path. The processor may be configured to receive the leakage signal, analyze a time pattern of the leakage signal, determine whether a ground fault exists based on analysis of the time pattern, and generate a first trigger signal if the ground fault is determined to exist. The ground fault circuit interrupter may further include a back-EMF detection circuit configured to provide a back-EMF detection signal. Methods for detecting and responding to a ground fault are also provided.
    Type: Grant
    Filed: July 15, 2019
    Date of Patent: November 2, 2021
    Inventor: Ze Chen
  • Patent number: 11075028
    Abstract: An impact actuator with 2-degree of freedom, which may generate an impact stimulation in any direction on the plane, includes a body having a magnetic substance that is movable therein, one upper solenoid attached to an upper portion of the body, and three or more lower solenoids attached to a lower portion of the body, wherein the upper solenoid and the three or more lower solenoids are independently supplied with AC power from a power supply, respectively.
    Type: Grant
    Filed: January 3, 2019
    Date of Patent: July 27, 2021
    Assignee: Korea Institute of Science and Technology
    Inventors: Jaeyoung Park, Sangyoon Kim
  • Patent number: 11049636
    Abstract: A torque motor for use in a servovalve wherein only two holes must be provided through each of the pole pieces in order to assemble the torque motor together. The torque motor comprises first and second opposing pole pieces, first and second permanent magnets positioned between the first and second pole pieces; an armature comprising a magnetic plate and a flapper, the magnetic plate being positioned between the first and second permanent magnets, the flapper being connected at one end to the magnetic plate; and further comprising: first and second fastening means each extending through the first pole piece, the armature and the second pole piece to thereby fasten the torque motor together.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: June 29, 2021
    Assignee: HAMILTON SUNSTRAND CORPORATION
    Inventors: Piotr Sawicki, Piotr Kozlowski
  • Patent number: 11033724
    Abstract: A tattooing apparatus includes a grip body and a pivot pin. The grip body defines a cavity extending entirely through the grip body in a first direction. The pivot pin is mounted in the cavity perpendicular to the first direction, the pivot pin having an axis of rotation, the pivot pin mounted rotatably around the axis of rotation. A tattoo needle assembly includes a needle bar, a loop, and a plurality of needles. The needle bar has a first end and a second end. The loop is coupled to the first end and defines a first plane. The plurality of needles includes a first row coupled to the second end and defining a second plane, the first plane angled approximately 90 degrees to the second plane. A tattoo needle assembly includes three rows of at least three needles, the needles fastened together to be immovable with respect to each other.
    Type: Grant
    Filed: December 22, 2018
    Date of Patent: June 15, 2021
    Assignee: Hand of Glory Tattoo Studio Inc.
    Inventors: Craig J. Rodriguez, Cain R. Rodriguez
  • Patent number: 11018568
    Abstract: A torque motor for a servovalve is provided, the torque motor comprising an armature and a first pole piece. The first pole piece has a first portion and a second portion that is selectively moveable relative to the first portion such that a size of an air gap formed between the second portion and the armature is adjusted in response to the movement of the second portion relative to the first portion.
    Type: Grant
    Filed: December 4, 2018
    Date of Patent: May 25, 2021
    Assignee: HAMILTON SUNSTRAND CORPORATION
    Inventors: Piotr Sawicki, Marcin Cis
  • Patent number: 10992216
    Abstract: Provided is a linear motor, including a housing having a receiving space; a vibrator and a stator received therein; an elastic member suspending the vibrator in the housing; and a circuit board. The housing includes a bottom cover and a shell covering the bottom cover and enclosing the receiving space together with the bottom cover. The stator includes an iron core fixed in the housing, a yoke sleeved on the iron core, and first and second coils provided on two sides of the yoke. The second coil is provided between the yoke and the bottom cover. The circuit board is fixed to the bottom cover. The vibrator includes a magnet spaced apart from the stator. The iron core is provided with a groove formed by recessing inwardly from a surface thereof. A coil lead of the first coil passes through the groove to be electrically connected to the circuit board.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: April 27, 2021
    Assignee: AAC Technologies Pte. Ltd.
    Inventors: Tao Zhang, Jinquan Huang, Fanghua Ling
  • Patent number: 10819066
    Abstract: An inlet apparatus includes: a locking pin; a holder configured to accommodate the locking pin; and a first electromagnet provided at a lower portion of the holder. The first electromagnet includes a lower coil for generating a repulsive force or an attractive force in a vertical direction with respect to the locking pin. The inlet apparatus also includes a second electromagnet provided at a side of the holder, the second electromagnet including a side coil for fixing the locking pin. The inlet apparatus also includes a controller configured to control a current of the lower coil of the first electromagnet and a current of the side coil of the second electromagnet.
    Type: Grant
    Filed: August 13, 2019
    Date of Patent: October 27, 2020
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventor: Dong-Hwan Kim
  • Patent number: 10811903
    Abstract: Disclosed herein are various wireless power electropermanent magnets and related systems and devices, including handheld wands for activating and deactivating wireless power electropermanent magnets, and coupling and locking mechanisms utilizing wireless power electropermanent magnets.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: October 20, 2020
    Assignee: X Development LLC
    Inventors: Michael Grundmann, Jonathan Ross, Joseph Sargent
  • Patent number: 10790107
    Abstract: A circuit breaker for interrupting a direct current, in particular in a power supply system in a vehicle having a main current path that includes a switch, and having a reed relay for detecting an electric current flow across the main current path. The switch is coupled to the reed relay. Also, a use of a circuit breaker is provided.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: September 29, 2020
    Assignee: Ellenberger & Poensgen GmbH
    Inventors: Hendrik-Christian Koepf, Ernst-Dieter Wilkening
  • Patent number: 10734148
    Abstract: An electromagnetic holding magnet and a method for manufacturing the same, and an electromagnetic locking element that, that in a preferred embodiment, is a lock in a container of an oxygen emergency supply system of an aircraft. The electromagnetic holding magnet includes a yoke and a retaining plate interacting with the yoke as an anchor. At least one permanent magnet generates a magnetic retaining flux in the yoke that includes a first yoke leg and a second yoke leg as well as a middle pole. The middle pole is surrounded in sections by a magnetic coil. The first and second yoke legs are arranged symmetrically in relation to the middle pole and the magnetic coil.
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: August 4, 2020
    Assignee: Kendrion Kuhnke Automation GmbH
    Inventors: Mathias Jotter, Borgar Pfeiffer, Bleik Teunis
  • Patent number: 10703217
    Abstract: According to one embodiment, an inductor unit includes a first inductor and a second inductor. The first inductor includes a first magnetic core and a first coil winded around the first magnetic core. The second inductor includes a second magnetic core and a second coil winded around the second magnetic core. The first inductor and the second inductor are placed so that a first angle between a first line and a fifth line is equal to or greater than 0 degrees and is equal to or less than 90 degrees. The cross section of the first coil in the width direction and a cross section of the first coil in the width direction are overlapping at least at direction of the first magnetic flux or direction of the second magnetic flux.
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: July 7, 2020
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Kenichirou Ogawa, Masatoshi Suzuki
  • Patent number: 10699831
    Abstract: A reluctance transducer includes a soft ferromagnetic yoke and a soft ferromagnetic core element, which is movable relative to the yoke. Two permanent magnets bear the core element. The permanent magnets are arranged relative to each other and to the yoke so that the reluctance transducer has a good linear relationship between displacement and force. The reluctance transducer can be applied as stiffness compensating element. The reluctance transducer can include an electrical winding to allow its application as a magnetic bearing, an actuator or as a displacement, velocity or acceleration sensor with improved intrinsic linearity.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: June 30, 2020
    Assignee: NEDERLANDSE ORGANISATIE VOOR TOEGEPAST-NATUURWETENSCHAPPELIJK ONDERZOEK TNO
    Inventors: Roger Franciscus Mattheus Maria Hamelinck, Christian Werner
  • Patent number: 10692636
    Abstract: An electromagnetic actuator device has at least one stationary spool unit (4), which can be energized, and at least one armature unit (7), movable along a displacement axis (V) and with respect to the spool unit (4) in reaction to the spool unit (4) being energized. The armature unit (7) can be displaced between a parked position and an actuating position in an output drive direction along the displacement axis (V) in order to interact with an actuating element, which can be a camshaft disposed on the output side of the armature unit (7), and can be rotated about the displacement axis (V).
    Type: Grant
    Filed: August 3, 2016
    Date of Patent: June 23, 2020
    Assignee: ETO Magnetic GmbH
    Inventors: Philipp Fangauer, Jörg Bürssner
  • Patent number: 10622877
    Abstract: A linear vibration generator in which a coil or a stator is fixed using a simple structure compared to a conventional technology. There is provided a linear vibration generator having advantages of a simplified assembly process and a low production cost by reducing the number of parts that form the inside of the vibration generation device through an improved bracket structure in which a protruding part functions as a central yoke. The protruding part can be easily fabricated by being pressed into a bracket using a press or deep drawing method, and a coil is fixed by a stable structure. There is an advantage of a low production cost.
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: April 14, 2020
    Assignee: MPLUS CO., LTD.
    Inventors: Yong Tae Kim, Nam Sock Kim, Tae Hoon Lee
  • Patent number: 10566888
    Abstract: Embodiments described herein may take the form of an electromagnetic actuator that produces a haptic output during operation. Generally, an electromagnetic coil is wrapped around a central magnet array. A shaft passes through the central magnet array, such that the central array may move along the shaft when the proper force is applied. When a current passes through the electromagnetic coil, the coil generates a magnetic field. The coil is stationary with respect to a housing of the actuator, while the central magnet array may move along the shaft within the housing. Thus, excitation of the coil exerts a force on the central magnet array, which moves in response to that force. The direction of the current through the coil determines the direction of the magnetic field and thus the motion of the central magnet array.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: February 18, 2020
    Assignee: Apple Inc.
    Inventors: Brett W. Degner, David H. Narajowski, Jonah A. Harley, Alyssa J. Garver
  • Patent number: 10530230
    Abstract: The invention relates to a miniature linear vibrotactile actuator comprising: a first element 14, 104 of generally cylindrical shape, comprising permanent magnets 15, 105 aligned so that two adjacent sides of two adjacent magnets 15, 105 have identical polarities; a second element 11, 101 defining a cylindrical cavity 12, 102 into which the first element 14, 104 is inserted with play so as to be able to slide therein in a sliding direction X2, the second element 11, 101 comprising coils 13, 103 of conductive wire having strands that extend perpendicularly to the sliding direction X2, in order to form magnetic force generators, and that are placed so as to be able to influence the first element 14, 104 electromagnetically; and means 25, 41, 125 for returning and guiding the first element 14, 104 toward an equilibrium position in the second element 11, 101, in which position a median plane P2 between two adjacent magnets substantially coincides with a median plane P1 of a facing force generator 111.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: January 7, 2020
    Assignees: SORBONNE UNIVERSITE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Vincent Hayward, Amir Berrezag, George Dietz
  • Patent number: 10437006
    Abstract: Disclosed herein is a camera lens module. The camera lens module may include a base in which a lens barrel is placed, an auto-focusing driving unit disposed in parallel to the first side surface of the base in such a way as to face the first side surface and disposed to face the lens barrel, and an optical element driving unit disposed in parallel to a second side surface placed in a direction opposite the first side surface, disposed to face the lens barrel, and disposed to stand opposite to the auto-focusing driving unit.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: October 8, 2019
    Assignee: JAHWA electronics Co., Ltd.
    Inventors: Hee Seung Kim, In Soo Kim
  • Patent number: RE48211
    Abstract: A rotating electromagnetic machine has a tubular axle with mounting rings, a common ring, a coil input ring, and at least one bearing set mounted on it. A fitting is secured at a distal end of the tubular axle, and a commutator is secured at the proximal end. A housing is mounted on the bearing sets through adaptors. Connecting bars extend axially within the axle with lateral rods joined to the connecting bars at their distal ends, the bars commuting between segments of the commutator electromagnetic coils. A plurality of the electromagnetic coils are secured to the coil input ring. The coils are formed of spiral turns of a single flat strip electrically conductive material. A plurality of peripheral and sector magnets are mounted adjacent to the electromagnetic coils with electromagnetic interaction when relative motion occurs between the coils and the magnets.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: September 15, 2020
    Assignee: CLEARWATER HOLDINGS, LTD.
    Inventor: Dumitru Bojiuc
  • Patent number: RE49413
    Abstract: A rotating electromagnetic machine has a tubular axle with mounting rings, a common ring, a coil input ring, and at least one bearing set mounted on it. A fitting is secured at a distal end of the tubular axle, and a commutator is secured at the proximal end. A housing is mounted on the bearing sets through adaptors. Connecting bars extend axially within the axle with lateral rods joined to the connecting bars at their distal ends, the bars commuting between segments of the commutator electromagnetic coils. A plurality of the electromagnetic coils are secured to the coil input ring. The coils are formed of spiral turns of a single flat strip electrically conductive material. A plurality of peripheral and sector magnets are mounted adjacent to the electromagnetic coils with electromagnetic interaction when relative motion occurs between the coils and the magnets.
    Type: Grant
    Filed: August 3, 2020
    Date of Patent: February 7, 2023
    Assignee: CLEARWATER HOLDINGS, LTD.
    Inventor: Dumitru Bojiuc