Patents Examined by Lisa N Homza
  • Patent number: 10262790
    Abstract: A permanent magnet drive on-load tap-changing switch including a changing switch circuit that includes structurally identical odd- and even-numbered tap-changing circuits. The circuits include working contactors and dual-contact synchronous transition contactors made of primary and secondary contactors. The contactors each face directly a moving contactor, which are connected in parallel. A permanent magnet is fixed on each moving contactor and face directly on the other extremity thereof a moving contactor driving mechanism. The mechanism changes a force applied to the magnets, allowing the moving contactors to come into contact with or be separated from the working and transition contactors, thus implementing changeover from one tap to another tap. The switch is structurally simple and convenient to use, obviates the need for a high-speed mechanism, implements changing by the direct actions of the contactors, operates at high speed and reliably, and has a low failure rate and an extended service life.
    Type: Grant
    Filed: January 28, 2015
    Date of Patent: April 16, 2019
    Inventor: Junqi Diao
  • Patent number: 10256059
    Abstract: A novel magnetic switch, comprising a housing, a terminal A and a terminal B, wherein an inner cavity of the housing is internally provided with a magnetic body and a tongue plate, one end of the tongue plate is movably connected to the upper end of the terminal B, the magnetic body, which is integrally linked to the tongue plate, is capable of being raised thereon; the other end of the tongue plate is disposed above the terminal A; the upper end of the terminal A is provided with an arc-removing apparatus, the arc-removing apparatus is provided with a stationary contact, and the other end of the tongue plate is provided with a movable contact. The magnetic switch has an effective structure, thus improving the work stability and prolonging the service life of the switch.
    Type: Grant
    Filed: October 14, 2015
    Date of Patent: April 9, 2019
    Assignee: CHUANDONG MAGNETIC ELECTRONIC CO., LTD
    Inventors: Li Liu, Ke Wen Long
  • Patent number: 10249424
    Abstract: A cover for magnetizing a shaft of a tissue-penetrating medical device is disclosed including a sleeve member having a hollow body to form a protective closure over the shaft of the tissue-penetrating medical device. The proximal end of the hollow body provides a receiving space for receiving the shaft of the tissue-penetrating medical device. One or more magnet is disposed on the sleeve member. A magnetic shield composed of one or more shielding materials associated with the cover that minimizes any effects to the clinical environment from magnetic fields generated within the cover. Medical devices and methods of magnetizing the shaft of a tissue-penetrating medical device using the cover are also disclosed.
    Type: Grant
    Filed: July 20, 2018
    Date of Patent: April 2, 2019
    Assignee: Becton, Dickinson and Company
    Inventors: Yiping Ma, Jonathan Karl Burkholz, Weston F. Harding, S. Ray Isaacson, Jeffrey C. O'Bryan
  • Patent number: 10249419
    Abstract: A superconductive electromagnet according to an embodiment includes a pair of main coils that have an annular shape, a pair of magnetic poles that are arranged on an inner peripheral side of the main coils, and that respectively have opposing surfaces which are planes opposing each other while being separated from each other in an axial direction of the main coils, and a pair of correction coils that are arranged between a pair of the magnetic poles. In this manner, density of a magnetic flux generated by the main coils is corrected by density of a magnetic flux generated by the correction coils. Accordingly, it is possible to realize improved uniformity in the density of the magnetic flux in a beam duct inside a deflection electromagnet.
    Type: Grant
    Filed: May 19, 2015
    Date of Patent: April 2, 2019
    Assignee: SUMITOMO HEAVY INDUSTRIES, LTD.
    Inventor: Jun Yoshida
  • Patent number: 10249463
    Abstract: A latching electromechanical RF switch is formed with an RF switch cavity having at least one inlet port and at least one outlet ports having switch contacts. A leaf contact member moveable between a first contact position connecting the switch contacts and a second position spaced from the switch contacts. A solenoid mounted in the cavity. A housing is formed with a hollow passage. An intermediate permanent magnet provided within the housing. A connecting member assembly is moveable within the hollow passage. The contact leaf member is connected to one end with a permanent magnet provided at another end of the connecting member. The intermediate magnet attracts and retains the permanent magnet and the contact leaf member in the first contact position. Upon reaching the first contact position electric current supply to the solenoid is terminated.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: April 2, 2019
    Assignee: Scientific Components Corporation
    Inventors: Theodore C. Heil, Ben Tabrizi, Manor Iosilevich
  • Patent number: 10242829
    Abstract: An electromagnetic relay includes: a base; a pair of fixed contact terminals, each including a fixed contact and a first fulcrum fixed to the base; a movable contact spring including a pair of movable pieces, each of the movable pieces including a movable contact contacting and separating from the fixed contact; an armature that is coupled with the movable contact spring, by a rotary motion around a second fulcrum; an electromagnetic device that drives the armature; and a permanent magnet arranged between the pair of fixed contact terminals and between the pair of movable pieces to generate a magnetic field. The first fulcrum and the second fulcrum are arranged mutually in opposite directions with respect to the movable contact or the fixed contact.
    Type: Grant
    Filed: May 12, 2015
    Date of Patent: March 26, 2019
    Assignee: FUJITSU COMPONENT LIMITED
    Inventors: Yoichi Hasegawa, Daiei Iwamoto
  • Patent number: 10234424
    Abstract: A magnetic particle inspection tool is provided including a yoke with an inspection magnet, a first magnetic member, and a second magnetic member. The inspection magnet is configured to magnetize a work piece. The first magnetic member is rotatable relative to the inspection magnet between a first position and a second position, and the inspection magnet is slidable relative to the first magnetic member. The first magnetic member and second magnetic member include a plurality of magnetic sources forming a magnetic surface with a first magnetic pattern and a magnetic surface with a second magnetic pattern. The magnetic surfaces are magnetically attracted when the first magnetic member is in the first position and repelled when in the second position.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: March 19, 2019
    Assignee: Caterpillar Inc.
    Inventors: Christopher Anthony Kinney, Bradley Carl Hill, Kegan Jon Luick
  • Patent number: 10236107
    Abstract: A magnetic flux control device according to the exemplary embodiment includes: a pole piece assembly which is provided with an N pole piece and an S pole piece which are formed with first surfaces and second surfaces and made of a ferromagnetic material, and a permanent magnet which is disposed such that an N-pole is in contact with the N pole piece and an S-pole is in contact with the S pole piece; a first outer pole piece, a second outer pole piece, and a base pole piece which are formed with first surfaces and second surfaces and made of a ferromagnetic material; a coil which is wound around at least one of the N pole piece, the S pole piece, the first outer pole piece, the second outer pole piece, and the base pole piece; and a control unit which controls electric current to be applied to the coil.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: March 19, 2019
    Inventor: Tae Kwang Choi
  • Patent number: 10217584
    Abstract: A magnetic reed switch, including: an insulating casing, magnetic reeds, and at least one flexible element. The insulating casing is a hollow structure. The magnetic reeds are disposed inside and at two ends of the insulating casing, respectively. Ends of the magnetic reeds overlap. The at least one flexible element is an electrically conductive material and is disposed on at least one magnetic reed. The at least one flexible element is connected in parallel to two ends of the magnetic reeds.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: February 26, 2019
    Assignees: DONGGUAN CHUANQIANG ELECTRONIC TECHNOLOGY CO., LTD.
    Inventor: Deqiang Jing
  • Patent number: 10210978
    Abstract: A haptic actuator having a base structure, a beam rotatably attached to the base structure by an axial member, a first coil portion, and a second coil portion is presented. The beam has a first end that includes a first magnet with magnetic poles having a first polarity, and a second end that includes a second magnet with magnetic poles having a second, opposite polarity. The first coil portion and the second coil portion are configured to generate magnetic field lines. The magnetic poles of the first magnet and the magnetic poles of the second magnet are aligned to be parallel with a central axis of the first coil portion or the second coil portion when the beam is in an equilibrium position. The beam is configured to rotate via the axial member in response to electrical current being passed through the first coil portion or the second coil portion.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: February 19, 2019
    Assignee: IMMERSION CORPORATION
    Inventors: Vahid Khoshkava, Mansoor Alghooneh, Mohammadreza Motamedi
  • Patent number: 10176955
    Abstract: The present invention relates to a multi-pole molded case circuit breaker, more particularly, to a multi-pole molded case circuit breaker having a safety device (with an isolation function) which prevents a manipulation handle from being moved to an off-position when a fusion occurs on a contact portion.
    Type: Grant
    Filed: January 21, 2017
    Date of Patent: January 8, 2019
    Assignee: LSIS CO., LTD.
    Inventor: Jaekwan Seo
  • Patent number: 10170261
    Abstract: The contact device includes a main contact mechanism that includes a pair of main fixed contacts and a main movable contact elastically supported by a movable shaft and disposed to be contactable with and separable from the pair of main fixed contacts, an auxiliary contact mechanism that includes a pair of auxiliary fixed contacts and auxiliary movable contacts disposed in an auxiliary contact holding member connected to the movable shaft so as to be contactable with and separable from the pair of auxiliary fixed contacts, and a contact housing portion that houses the main contact mechanism and the auxiliary contact mechanism. The movable shaft has a main contact support portion supporting the main movable contact and an auxiliary contact support portion supporting the auxiliary contact holding member. The main contact support portion and the auxiliary contact support portion are connected to each other via the auxiliary contact holding member.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: January 1, 2019
    Assignee: FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO., LTD.
    Inventors: Yuki Tashima, Kouetsu Takaya, Hideo Adachi, Yasuhiro Naka, Yuya Sakurai, Koujun Konishi
  • Patent number: 10170260
    Abstract: An electromagnetic relay includes a base, an electromagnet block having a spool with a through hole opening at a flange portion thereof and mounted on an upper surface of the base, a movable iron piece, a movable contact piece rotatable integrally with the movable iron piece, a movable contact fixed to a free end of the movable contact piece, and a fixed contact fixed to a fixed contact terminal and contactable with and separable from the movable contact along with rotation of the movable contact piece. Insulating ribs project from an inward facing surface of a spacer integrally formed with the movable iron piece and an outward facing surface of the flange portion respectively such that the insulating ribs intercept a straight line connecting a magnetic pole portion projecting through the through hole and the fixed contact or the fixed contact terminal with a shortest distance.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: January 1, 2019
    Assignee: OMRON Corporation
    Inventors: Yasuo Hayashida, Ayaka Miyake
  • Patent number: 10170265
    Abstract: A leakage current protection device includes an electrical and mechanical assembly which includes: a circuit board; moving contact plates; an auxiliary switch; a reset shaft, having a hook in its lower portion, a bottom end of the reset shaft being set against one end of a reset spring, another end of the reset spring being set against the base; a disconnect mechanism, having a hook at its upper portion to engage with the hook of the reset shaft in a vertical direction; a trip coil and a trip plunger disposed on a side of the disconnect mechanism, where the disconnect mechanism is driven by the trip plunger to move horizontally. The disconnect mechanism further includes a pushing end that controls the auxiliary switch and lifting levers that control the moving contact plates.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: January 1, 2019
    Inventor: Chengli Li
  • Patent number: 10153076
    Abstract: A coil component 1 such as a solenoid valve is provided with a wiring part 20 formed by winding a conducting wire 4 therearound, and terminal electrodes 3A, 3B having connection terminals 16A, 16B electrically connected to the conducting wire 4. A locking piece 15A is provided on the terminal electrode 3A on a side of a wiring part for the connection terminal 16A, a starting end part of the conducting wire 4 is locked to the locking piece 15A, and the conducting wire 4 is led up in a direction reverse to a direction in which the wiring part 20 is arranged at a predetermined position, is passed into the connection terminal 16A so as to be electrically connected to the connection terminal 16A, and further led up in the direction reverse to the direction in which the wiring part 20 is arranged at a predetermined position.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: December 11, 2018
    Assignee: SUMIDA CORPORATION
    Inventor: Ryuji Watanabe
  • Patent number: 10153115
    Abstract: To provide an electromagnetic contactor that enables electrical connection work of connecting the electromagnetic contactor to another electrical component disposed in a current path to be performed easily and efficiently. An electromagnetic contactor includes a main contact portion; an auxiliary contact portion; a contact housing case that houses the main contact portion and the auxiliary contact portion; an electromagnet unit that drives a movable plunger coupled to a connecting shaft of the main contact portion; main contact electrodes project out of a case wall of the contact housing case to an outside; auxiliary contact electrodes that are connected to a pair of fixed contacts of the auxiliary contact portion and project out of the case wall to an outside; and an auxiliary contact external terminal portion that is connected to the auxiliary contact electrodes and is arranged on a portion of the case wall.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: December 11, 2018
    Assignee: FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO., LTD.
    Inventors: Kouetsu Takaya, Yuki Tashima, Hideo Adachi, Yasuhiro Naka, Koujun Konishi
  • Patent number: 10141092
    Abstract: A system for securing a device to a person by way of their clothing. Method of use is to deploy a ferromagnetic strip coupled with the device on one side of an article of clothing, and a magnet on the opposite side of the article of clothing. The ferromagnetic strip may include a recessed area to receive the magnet. The strip may be coupleable with holsters or cases for guns, phones, or other devices, such as medical devices, radios, or cameras. Some methods of use include two or more ferromagnetic strips and a magnet, wherein one strip is disposed on the surface of the device, one or more strips are disposed with the device inside a pocket or on one side of an article of clothing, and the magnet is disposed outside the pocket or on the other side of an article of clothing. Designed for low profile.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: November 27, 2018
    Inventor: Charles Stuart Bennett
  • Patent number: 9343247
    Abstract: A keyswitch includes a casing having a first magnetic area, a key cap, and a support device including first and second support members rotatably connected to the key cap and the base plate. The first support member has a receiving opening and a second magnetic area disposed within the receiving opening. When the key cap is not pressed, a magnetic attraction force between the first and second magnetic areas keeps the key cap at a non-pressed position. When the key cap is pressed by an external force, the key cap moves with the support device toward a pressed position. When the external force is removed, the second magnetic area moves toward the first magnetic area due to the magnetic attraction force such that the key cap moves with the support device from the pressed position toward the non-pressed position.
    Type: Grant
    Filed: May 14, 2015
    Date of Patent: May 17, 2016
    Assignee: DARFON ELECTRONICS CORP.
    Inventor: Chien-Shih Hsu
  • Patent number: 9159512
    Abstract: An electromagnetic opening/closing device A1 includes a detector 5 for detecting an opened or closed state of a contact unit 1; a malfunction determination unit 6 configured to determine presence or absence of malfunction based on the opened or closed state of the contact unit 1 detected through the detector 5 and an opened or closed state of the contact unit 1 corresponding to an exterior command; and an output unit 8 configured to supply an exterior with a determination result by the malfunction determination unit 6.
    Type: Grant
    Filed: March 7, 2012
    Date of Patent: October 13, 2015
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Kazuhiro Kodama, Takeshi Okada
  • Patent number: 9140768
    Abstract: A mounting plate for locating under a superconducting magnet structure, between the superconducting magnet structure and a supporting surface of a mobile carrier, is controllable between two different states. In a first state, the mount provides rigid attachment and precise location of the superconducting magnet structure onto the supporting surface of the mobile carrier. In a second state, the mount provides vibration isolation between the superconducting magnet and the mobile carrier.
    Type: Grant
    Filed: November 19, 2012
    Date of Patent: September 22, 2015
    Assignee: Siemens PLC
    Inventors: Neil Belton, Richard Gowland, Trevor Bryan Husband, Nicholas Mann, Michael Simpkins