Patents Examined by Stephen W. Jackson
  • Patent number: 11511396
    Abstract: Magnetic coupling devices are disclosed having magnetic field sensors. The magnetic coupling device may include degaussing coils wrapped about pole extension shoes of the magnetic coupling device.
    Type: Grant
    Filed: October 19, 2020
    Date of Patent: November 29, 2022
    Assignee: MAGSWITCH TECHNOLOGY WORLDWIDE PTY LTD.
    Inventors: David H. Morton, Paul J. Karp, Thomas R. Whitt, Michael C. Blanchard
  • Patent number: 11511021
    Abstract: Embodiments of negative pressure wound therapy systems and methods are disclosed. In one embodiment, an apparatus includes a housing, negative pressure source, circuit board, and one or more controllers. The circuit board can be supported by the housing and include a conductive pathway extending around at least part of a perimeter of a first side of the circuit board. The conductive pathway can be electrically coupled to an electrical ground for the circuit board. The one or more controllers can be mounted on the circuit board and activate and deactivate the negative pressure source.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: November 29, 2022
    Assignee: Smith & Nephew PLC
    Inventors: Ben Alan Askem, Fernando Bettani, Alberto Fasan, Allan Kenneth Frazer Grugeon Hunt, Felix Clarence Quintanar
  • Patent number: 11515869
    Abstract: A semiconductor device, including a control circuit that has a gate control circuit driving a power semiconductor element. The control circuit further includes a plurality of alarm detection circuits respectively detecting a plurality of abnormalities, a protection circuit stopping the gate control circuit responsive to the detection of any abnormality, an alarm signal generation circuit generating an alarm signal responsive to the detected abnormality, a warning detection circuit detecting a warning before any of the abnormalities is detected, and a pulse generation circuit generating a warning signal while the warning is being detected. The alarm signal is a one-shot pulse having a pulse width thereof corresponding to the detected abnormality, such that alarm signals generated responsive to different abnormalities have different pulse widths. The warning signal includes a plurality of successive pulses, each of which has a pulse width smaller than any of the pulse widths of the alarm signals.
    Type: Grant
    Filed: April 21, 2021
    Date of Patent: November 29, 2022
    Assignee: FUJI ELECTRIC CO., LTD.
    Inventor: Kenichiro Sato
  • Patent number: 11509128
    Abstract: A multi-port solid-state circuit breaker system includes a first electrical power bus, a second electrical power bus, and a plurality of breaker legs conductively coupled with the first electrical power bus and the second electrical power bus in parallel with one another. Each of the plurality of breaker legs includes a first power semiconductor device coupled in series with a second power semiconductor device and an input/output port intermediate the first power semiconductor device and the second power semiconductor device. At least one of the first semiconductor device and the second semiconductor device includes an actively controlled switching device. A surge suppressor is conductively coupled in parallel with the plurality of breaker legs.
    Type: Grant
    Filed: September 14, 2020
    Date of Patent: November 22, 2022
    Assignee: ABB SCHWEIZ AG
    Inventors: Xiaoqing Song, Taosha Jiang, Antonello Antoniazzi
  • Patent number: 11501902
    Abstract: A system comprising a solenoid electromagnet for generating a magnetic field and a driver circuit coupled to the solenoid electromagnet for modulating the magnetic field generated by the solenoid electromagnet. The magnetic field generated by the solenoid electromagnet of the present invention exhibits improved control over the direction and projection of the generated magnetic field. The generated magnetic field has the ability to detach permanent magnets from metal plates, cause motion of permanent magnets and soft magnetic materials as well as create separation between two magnetically bound permanent magnets.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: November 15, 2022
    Inventors: Jeffrey B. Whalen, Eric Lochner, Petru Andrei, Theo Siegrist, Timothy P. Murphy
  • Patent number: 11502501
    Abstract: The invention discloses an overcurrent protection circuit, coupled to a DC bus between first and second DC ends, the DC bus including positive bus and negative bus, and the circuit including: a main protection branch connected in series with the positive or negative bus, and including first and second protection switches connected in series and connected to a first node; a freewheeling switch branch having two ends, one end being connected to the first node, the other end being connected to an opposite bus to the main protection branch; a detection unit coupled to the DC bus for detecting a voltage or a current of the DC bus to output an overcurrent detection signal; and a control unit coupled to the detection unit and the main protection branch, and configured to control the main protection branch according to the overcurrent detection signal.
    Type: Grant
    Filed: November 25, 2020
    Date of Patent: November 15, 2022
    Assignee: Delta Electronics (Shanghai) CO., LTD
    Inventors: Guoqiao Shen, Jinfa Zhang, Yuhu Zhou
  • Patent number: 11495959
    Abstract: Provided is a method for monitoring DC electrical power. The method including determining a rate of change of the DC electrical power, determining whether the rate of change of the DC electrical power is greater than a predetermined threshold, when the rate of change of the DC electrical power is greater than the predetermined threshold, determining whether the rate of change of the DC electrical power is greater than the predetermined threshold for a predetermined period of time, and when the rate of change of the DC electrical power is greater than the predetermined threshold for the predetermined period of time, sending a signal indicating an interruption in the DC electrical power.
    Type: Grant
    Filed: January 22, 2021
    Date of Patent: November 8, 2022
    Assignee: ARRIS ENTERPRISES LLC
    Inventor: Frederick Salberta
  • Patent number: 11489331
    Abstract: A leakage current detection and protection device includes a leakage current detection module for generating a detection feedback signal when detecting a leakage current on the power supply lines, wherein the power supply lines supply a working power to the leakage current detection module during half of the AC power cycles; a self-test module for testing whether the leakage current detection module is faulty based on the detection feedback signal, which includes: a simulated leakage current generating circuit for generating a simulated leakage current signal; a fault signal generating module for generating a self-test fault signal when the leakage current detection module has a fault; and a self-test compensation module for supplying an auxiliary working power to the leakage current detection module so the leakage current detection module is in a working state whenever the simulated leakage current is generated. This prevents misjudgment by the leakage current detection module.
    Type: Grant
    Filed: June 16, 2021
    Date of Patent: November 1, 2022
    Inventor: Chengli Li
  • Patent number: 11476505
    Abstract: An electrochemical cell, including a first electrode, a first volume of electrolyte in contact with the first electrode, a second volume of electrolyte, a first separator positioned between the first volume and the second volume, a second electrode in contact with the second volume, and a third volume of electrolyte. A second separator is positioned between the second volume and the third volume. A lithium reservoir electrode is in contact with the third volume.
    Type: Grant
    Filed: June 24, 2020
    Date of Patent: October 18, 2022
    Inventors: Manikandan Palanisamy, Mihit Hitendra Parekh, Vilas Ganpat Pol
  • Patent number: 11458223
    Abstract: Provided is a discharge device that can improve the efficiency of generating reactive species. The discharge device includes a discharging unit, which has a tip end and discharges from the tip end in response to an application of a voltage, an induction electrode, which forms an electric field between the induction electrode end the discharging unit, and a second electrode, which is disposed between the discharging unit and the induction electrode and receives a voltage having a polarity the same as a polarity of the voltage applied to the discharging unit.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: October 4, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Tetsuya Ezaki, Nobuyuki Ohe, Takahiro Matsuyama
  • Patent number: 11459996
    Abstract: Provided is an electronic control unit capable of performing a high-accurate failure diagnosis in a short time as an electronic control unit having a failure diagnosis function. A load drive circuit that drives a load, a control circuit that controls the load drive circuit, and a diagnosis circuit that diagnoses an output state of the load drive circuit and outputs a diagnostic result to the control circuit are provided. The diagnosis circuit outputs a diagnosis completion flag indicating whether or not there is a diagnosis opportunity to the control circuit.
    Type: Grant
    Filed: August 8, 2019
    Date of Patent: October 4, 2022
    Assignee: HITACHI ASTEMO, LTD.
    Inventors: Yuri Ohara, Yasuo Shima, Masahiro Doi, Takeo Yamashita
  • Patent number: 11462902
    Abstract: A photovoltaic array of photovoltaic solar cells; a smart dynamic programmable circuit breaker for electrically providing a pulsed 100 microseconds duration short circuit to the photovoltaic array electrical outputs, wherein a response time for the smart dynamic programmable circuit breaker is more than 1 millisecond when responding to a short circuit; a computer program comprising instructions that when executed by the processor perform functions that control the smart dynamic programmable circuit breaker, the computer program comprising: instructions to command the smart dynamic programmable circuit breaker to initiate the 100 microsecond pulsed short circuit; instructions to measure a current magnitude and current rise time of the smart photovoltaic system outputs during the 100 microsecond pulsed short circuit; and instructions to select a behavior curve from a plurality of smart dynamic programmable circuit breaker behavior curves 10% above the current magnitude and current rise time during the pulsed sh
    Type: Grant
    Filed: January 25, 2021
    Date of Patent: October 4, 2022
    Assignee: ELECTRONIC POWER DESIGN, INC.
    Inventor: John Bradford Janik
  • Patent number: 11452194
    Abstract: The disclosure relates to a device and a circuit for protecting controlled loads, and an apparatus for switching between the loads.
    Type: Grant
    Filed: September 4, 2020
    Date of Patent: September 20, 2022
    Assignee: SAVANT TECHNOLOGIES LLC
    Inventors: Pengfei Wang, Xin Zhou, Fanbin Wang, Chengbin Liu
  • Patent number: 11450465
    Abstract: A magnetic field application device includes a magnetic field application unit provided with a magnetic working substance, a permanent magnet, a yoke and a coil. The magnetic field application unit applies a magnetic field to the magnetic working substance. The yoke forms at least two closed magnetic circuits, each being a closed circuit that magnetically connects both ends in a magnetization direction of the permanent magnet. The coil is capable of changing an intensity of the magnetic field applied to the magnetic working substance. The coil is provided in at least one of the closed magnetic circuits. The magnetic field application unit is disposed in at least one of the closed magnetic circuits. A magnetic flux of the permanent magnet is branched to flow through two or more of the closed magnetic circuits including the closed magnetic circuit provided with the magnetic field application unit when the coil is non-energized.
    Type: Grant
    Filed: February 25, 2021
    Date of Patent: September 20, 2022
    Assignee: Daikin Industries, Ltd.
    Inventors: Akane Kayano, Yoshinari Asano
  • Patent number: 11449349
    Abstract: An automatic hold switch is disclosed. The automatic hold switch provides a means for automatically switching a hold feature on and off. When the hold feature is on, one or more input devices of a portable electronic device are disabled or prevented from providing input signals. When the hold feature is off, one or more input devices of a portable electronic device are enabled or allowed to provide input signals. Because the user no longer has to manually control the hold feature, the number of actions that need to be taken by the user is reduced. In one example, the automatic hold switch is embodied with light sensors that detect when the device is in a dark environment and when the device is in a light environment. A dark environment indicates to the portable electronic device that the user wishes not to input and therefore the hold feature is turned on. A lighted environment indicates to the portable electronic device that the user wishes to input and therefore the hold feature is turned off.
    Type: Grant
    Filed: February 17, 2021
    Date of Patent: September 20, 2022
    Assignee: Apple Inc.
    Inventor: Fletcher R. Rothkopf
  • Patent number: 11444446
    Abstract: A device for permanently secure disconnection of an electric circuit with high currents at high voltages with an inductive load is provided. The device has a first and a second switch/switch group, connected to each other in series and can be transferred from a closed state into a separated state for disconnecting the electric circuit, wherein none of the switches/switch groups is formed such that it is capable of permanently disconnecting the electric circuit by itself, and a control unit, which actuates the second switch/switch group and which is formed such that the second switch/switch group is transferred from the closed state into the separated state after the first switch/switch group. Further provided is an electric circuit which includes the device and a voltage source, a load resistance and an inductive load. A method using the device is also provided.
    Type: Grant
    Filed: February 4, 2020
    Date of Patent: September 13, 2022
    Inventor: Peter Lell
  • Patent number: 11444449
    Abstract: A circuit interrupting device includes an input conductor for electrically connecting to an external power supply, a load conductor for electrically connecting to a downstream load, a face conductor for electrically connecting to an external load, and a brush conductor in electrical communication with the input conductor and movable between a closed position and an open position. The brush conductor includes a second portion offset from a first portion such that a first terminal and a second terminal are positioned on separate planes. When the brush conductor is in the closed position, the first terminal contacts the load terminal and the second terminal contacts the face terminal to provide electrical communication between the input conductor, the load conductor, and the face conductor. When the brush conductor is in the open position, the first terminal is spaced apart from the load terminal and the second terminal is spaced apart from the face terminal.
    Type: Grant
    Filed: December 28, 2020
    Date of Patent: September 13, 2022
    Assignee: Hubbell Incorporated
    Inventor: Zhouxiang He
  • Patent number: 11444448
    Abstract: An leakage current detection and protection device includes a leakage current detection module for detecting a leakage current on the power supply lines and generating a detection feedback signal in response thereto, a self-test module for testing whether the leakage current detection module is faulty, and a trip module for disconnecting the power supply lines in response to the self-test fault signal. The self-test module includes a simulated leakage current trigger circuit for generating a simulated leakage current trigger signal, a simulated leakage current generating circuit for generating a simulated leakage current signal in response to the simulated leakage current trigger signal, a trigger signal turn-off module for turning off the simulated leakage current trigger signal in response to the detection feedback signal, and a fault signal generating module for detecting a fault in the leakage current detection module and generating a self-test fault signal in response thereto.
    Type: Grant
    Filed: May 7, 2021
    Date of Patent: September 13, 2022
    Inventor: Chengli Li
  • Patent number: 11441989
    Abstract: Method for carrying out rheologic measurements of a drilling mud, comprising: providing a first toroidal conduit (10); inserting into said first toroidal conduit (10) a drilling mud, comprising drilling debris; determining conditions to be simulated for said mud, said conditions to be simulated comprising a path length and/or a flow time to be simulated for said mud; determining, as a function of said conditions to be simulated, operating conditions to be applied to said mud, said operating conditions comprising a number of laps around said first toroidal conduit (10) and/or a flow time in said first toroidal conduit (10); regulating the temperature inside said first toroidal conduit (10); regulating the pressure inside said first toroidal conduit (10); providing a displacement device (20) comprising a first projectile (21), wherein said first projectile (21) fills substantially entirely a cross-section of said first toroidal conduit (10); moving, by means of said first projectile (21), said mud in the first
    Type: Grant
    Filed: February 24, 2020
    Date of Patent: September 13, 2022
    Assignee: Geolog S.r.l.
    Inventor: Antonio Calleri
  • Patent number: 11444451
    Abstract: A current transient suppression circuit includes an inductor electrically connected to a test signal by an input of the inductor, at least one switching device electrically connected to an output of the inductor, and an output of the at least one switching device connected to a shunt path. A method of suppressing current transients in a circuit includes receiving a test signal at an inductor, and when the test signal comprises a current transient, the current transient is received at the inductor, activating at least one switching device electrically connected to the inductor to shunt the current transient away from a device under test.
    Type: Grant
    Filed: January 7, 2020
    Date of Patent: September 13, 2022
    Assignee: Keithley Instruments, LLC
    Inventor: Arthur Sypen