Patents Examined by William A Bolton
  • Keyswitch device and method for assembling the same
    Patent number: 10832874
    Abstract: A keyswitch device includes a main body, an engaging structure, a connection base, and a flexible covering layer. The main body has a surface and a recess communicating with the surface. The engaging structure is connected to the main body and partially protrudes into the recess. The connection base includes an engaging portion. The engaging portion is rotatably engaged with the engaging structure. The flexible covering layer includes a first covering portion and a second covering portion. The first covering portion is connected to the surface. The second covering portion is connected to the connection base.
    Type: Grant
    Filed: April 26, 2018
    Date of Patent: November 10, 2020
    Assignee: Chicony Electronics Co., Ltd.
    Inventor: Wen-Bin Chen
  • Medium voltage switching apparatus
    Patent number: 10832881
    Abstract: A switching apparatus for medium voltage electric systems, the switching apparatus including one or more electric poles, each electrically coupleable with a corresponding electric line, the switching apparatus including: for each electric pole, a fixed contact and a corresponding movable contact, the movable contact being reversibly movable, along a corresponding translational displacement axis, between a decoupled position from the fixed contact and a coupled position with the fixed contact; an actuation assembly having, for each electric pole, an actuation shaft rotating about a rotation axis during a closing manoeuvre or an opening manoeuvre of the switching apparatus; for each electric pole, a motion transmission assembly including an eccentric mechanism operatively coupled with the actuation shaft.
    Type: Grant
    Filed: January 15, 2018
    Date of Patent: November 10, 2020
    Assignee: ABB Schweiz AG
    Inventors: Carlo Boffelli, Lars E. Jonsson, Stefan Halén
  • Resilient body and keyboard structure
    Patent number: 10825619
    Abstract: A resilient body and a keyboard structure are disclosed. The resilient body has a top portion, a bottom portion, a conducting post and an annular wall. The top portion has a first side wall and a first bottom surface. Before the resilient body is pressed, an angle is formed between the first side wall and the first bottom surface, wherein the angle is greater than 90°. The bottom portion has a second bottom surface. The conducting post is disposed under the first bottom surface. When the resilient body is pressed, the fire point of the resilient body is reached before the resilient body reaches the bottom point.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: November 3, 2020
    Assignee: CHICONY ELECTRONICS CO., LTD.
    Inventors: Fei-Wu Wu, Tsung-Min Chen, Liang-Yuan Yang
  • Series vacuum interrupters with grading capacitors integrated in a molded switch housing
    Patent number: 10818455
    Abstract: A switching module for use in a high voltage switch includes: a vacuum interrupter (VI), an elastomeric insulating sleeve disposed around the VI; an insulating housing molded around the VI and the sleeve; and a pair of grading capacitors. Each grading capacitor includes an inner and an outer electrode while insulation between the electrodes is solid insulation of the housing molded at the time when the housing is molded. One of the electrodes is galvanically connected to the fixed contact through a first terminal in the switching module and the other electrode is galvanically connected to the moving contact through a second terminal in the switching module. The capacitance of the first grading capacitor is substantially equal to the capacitance of the second grading capacitor.
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: October 27, 2020
    Assignee: S&C Electric Company
    Inventor: Goran Djogo
  • High speed switch
    Patent number: 10818454
    Abstract: A high speed switch comprises an interrupter unit connected to a main circuit and including a movable electrode and a driving electrode for opening or closing the main circuit; a driving unit including a repulsion coil for providing a driving force for moving the movable electrode of the interrupter unit, and a repulsion plate disposed opposite to the repulsion coil; a guide rod part connecting the movable electrode of the interrupter unit to the repulsion plate, having a latch groove formed therein, and reciprocating vertically according to movements of the repulsion plate; and a state-holding unit for regulating the movement of the guide rod part, wherein the state-holding unit comprises: a latch pin; a latch elastic member; and a latch coil.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: October 27, 2020
    Assignee: LSIS CO., LTD.
    Inventors: Hae-Yong Park, Jung-Wook Sim, Gyeong-Ho Lee
  • Arc quenching plate and arc quenching unit with such arc quenching plate and switching device with such arc quenching unit
    Patent number: 10818445
    Abstract: An unit has a plurality of arc quenching plates and an electrically isolative housing, the plurality of arc quenching plates adjacent to each other are spaced to form an arc channel. Each one of the plurality of arc quenching plates has a mounting portion and a receiving portion, the receiving portion has a distributing part, the distributing part has a through hole penetrating through the receiving portion and an inclined plane protruding from the receiving portion, the inclined plane is arranged to a side of the through hole away from an arc entrance and extending to the arc entrance, an angle between the inclined plane and the receiving portion is an acute angle, a root of the inclined plane is continuous with the receiving portion. An inclined plane of a first arc quenching plate is interlacing and opposite with an inclined plane of a second arc quenching plate.
    Type: Grant
    Filed: June 17, 2017
    Date of Patent: October 27, 2020
    Inventor: Gong Zhu
  • Assembly having a gas spring for a cable rotary-pendulum kinematic system and use of the assembly for switching
    Patent number: 10818453
    Abstract: An assembly for preloading a cable rotary-pendulum kinematic system is provided. The assembly includes a rotational body of a cable rotary-pendulum kinematic system. The rotational body is configured to rotate about the longitudinal axis thereof and is immovable in the direction of the longitudinal axis. The assembly further includes at least one gas spring surrounding the rotational body and which may be compressed in the direction of the longitudinal axis. The assembly further includes primary cables, which force-lockingly connect the rotational body to the gas spring in such a way that a rotational motion of the rotational body causes compression of the gas spring, whereby the assembly is preloaded.
    Type: Grant
    Filed: April 18, 2018
    Date of Patent: October 27, 2020
    Assignee: Siemens Aktiengesellschaft
    Inventors: Gerit Ebelsberger, Georg Bachmaier, Reinhard Freitag, Matthias Gerlich, Randolf Mock
  • Magnetic assembly for generating blow-on contact force
    Patent number: 10818460
    Abstract: A magnetic module in a circuit interrupting system is configured to generate a blow-on force that pushes a moving contact toward a stationary contact. The magnetic module includes: a coil conductor having an opening through which a moving stem of the moving contact may move, wherein the coil conductor is electrically connected to the moving stem and a first auxiliary conductor, wherein the coil conductor is configured to allow current to flow from the moving stem to the first auxiliary conductor; a plunger attached to an end of the moving stem; and a first magnetic core shaped to fit around a first section of the coil conductor, wherein the first magnetic core is configured, when current flows through the coil conductor to the first auxiliary conductor, to become magnetized, attract the plunger toward the magnetic core, and cause the moving stem of the moving contact to move toward the stationary contact.
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: October 27, 2020
    Assignee: S&C Electric Company
    Inventors: Goran Djogo, Richard George Smith, Daniel Hunter Desmond
  • Power outage isolation device
    Patent number: 10818452
    Abstract: This disclosure relates generally to power isolation switch devices. In one embodiment, a power isolation switch device has a power insulator, an arc breaker, and a switch. The power insulator and the switch are connected in parallel. The arc contact is operably associated with the switch such that the arc contact is removed from the arc chute as the switch is opened and is inserted to contact the arc chute when the switch is closed. In this manner, the power isolation switch device does not need an interrupter and can be provided so as to be less bulky.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: October 27, 2020
    Inventor: Robert Neal Hendrix
  • Arc extinguishing unit of molded case circuit breaker
    Patent number: 10811207
    Abstract: The present disclosure relates to an arc extinguishing device of a molded case circuit breaker which includes a fixed contactor fixedly provided on part of a base assembly case; a movable contactor brought into contact with or separated from the fixed contactor; and an arc extinguishing unit configured to extinguish an arc generated when the movable contactor is separated from the fixed contactor, and the arc extinguishing unit including a pair of side plates provided on the base assembly case; and a plurality of grids provided to have a predetermined distance between the pair of side plates, and the grid including a first grid formed with a first cutout portion on a first side surface where an arc is generated; and a second grid formed with a second cutout portion having a depth different from that of the first cutout portion on a second side surface where an arc is generated.
    Type: Grant
    Filed: July 15, 2019
    Date of Patent: October 20, 2020
    Assignee: LSIS CO., LTD.
    Inventors: Jeongjae Lim, Kihwan Oh
  • Switch
    Patent number: 10811198
    Abstract: A switch includes a base, a fixed contact member having fixed contact, and a movable contact member having a movable contact. The movable contact member moves in a first direction to bring the movable contact into contact with the fixed contact, and moves in a second direction opposite to the first direction to separate the movable contact from the fixed contact. The switch further includes a cover, an elastic body that energizes the movable contact member in the second direction, and an operation body configured to move the movable contact member sequentially to a first position, a second position, and a third position.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: October 20, 2020
    Assignee: Omron Corporation
    Inventors: Kenji Shinohara, Hiroyuki Fujita
  • Electrical contact alloy for vacuum contactors
    Patent number: 10804044
    Abstract: An improved electrical contact alloy, useful for example, in vacuum interrupters used in vacuum contactors is provided. The contact alloy according to the disclosed concept comprises copper particles and chromium particles present in a ratio of copper to chromium particles of 2:3 to 20:1 by weight. The electrical contact alloy also comprises particles of a carbide, which reduces the weld break strength of the electrical contact alloy without reducing its interruption performance.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: October 13, 2020
    Assignee: EATON INTELLIGENT POWER LIMITED
    Inventors: Louis Grant Campbell, Ganesh Kumar Balasubramanian, Benjamin Alex Rosenkrans
  • Sensor chip, flexure element, and force sensor device
    Patent number: 10801904
    Abstract: A sensor chip includes first support parts arranged at four corners and a second support part arranged at a center of a substrate, first detecting beams connecting adjacent first support parts to each other, second detecting beams provided in parallel to the first detecting beams between the first and second support parts, third detecting beams connecting the first and second connecting beams, in sets of the first and second detecting beams provided in parallel, force application points, arranged at intersections of the first and third detecting beams, and applied with the forces, and a plurality of distortion detection devices arranged at predetermined positions on the first, the second and the third detecting beams.
    Type: Grant
    Filed: October 3, 2017
    Date of Patent: October 13, 2020
    Assignee: Minebea Mitsumi Inc.
    Inventor: Shinya Yamaguchi
  • Electrical switch
    Patent number: 10804056
    Abstract: An electrical switch. The electrical switch includes at least one fixed contact and a movable contact contacting the fixed contact. At least one shutter element is arranged to move in synchronism with the movable contact. The shutter element is positioned in an extended position between the fixed contact and the movable contact and in a contracted position outside the patch of the movable contact allowing the movable contact to turn from the open position to the closed position.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: October 13, 2020
    Assignee: ABB Oy
    Inventors: Fredrik Strand, Mikko Välivainio, Jukka Lintamo, Juha Soldan
  • Keyboard
    Patent number: 10796862
    Abstract: A keyboard includes a first substrate, a second substrate, a keyswitch circuit, a connecting member, and a keyswitch assembly. The first substrate has a first through hole. The second substrate is disposed on the first substrate and has a second through hole. The second through hole is connected to the first through hole and located within an inner edge of the first through hole. The keyswitch circuit is disposed on one of the first substrate and the second substrate. The connecting member is engaged with the second through hole and extended onto a bottom surface of the second substrate facing toward the first substrate. The keyswitch assembly is located on a top surface of the second substrate facing away from the first substrate, connected to the connecting member, and configured to trigger the keyswitch circuit.
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: October 6, 2020
    Assignee: Chicony Electronics Co., Ltd.
    Inventor: Chih-Hao Chen
  • Coil-type axial magnetic field contact assembly for vacuum interrupter
    Patent number: 10796867
    Abstract: An electrode assembly for a vacuum interrupter includes a contact plate, an electrode coil, an inner support, a lower support, and at least one support member. The electrode coil includes a base for attachment to a terminal post of the vacuum interrupter. The electrode coil also includes at least one arcuate arm between the base and the contact plate extending along a curved path in a plane substantially perpendicular to a direction of travel of the electrode assembly. Each arcuate arm includes an aperture that is positioned to align with a corresponding aperture of an adjacent arcuate arm or the base of the electrode coil. Each support member is partially positioned within aligned apertures to maintain a gap between the arcuate arms and the base. The support members and the lower support may be slotted to decrease the current flowing through the supports.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: October 6, 2020
    Assignee: Eaton Intelligent Power Limited
    Inventors: Wangpei Li, Eric D. Smith, Xin Zhou, Ganesh Kumar Balasubramanian, Louis G. Campbell, Darron R. Mohr, Mrinalini Pathak
  • Air insulated grounding switch
    Patent number: 10784063
    Abstract: A circuit breaker apparatus has a housing, electrical power inlet, electrical power outlet, a main circuit breaker, a grounding switch, and a mechanical linkage. The main circuit breaker and the grounding switch each have a pair of contactors therein. The mechanical linkage is movable between a pair of positions in which one of the positions causes the pair of contactors of the main circuit breaker to close and the pair of contactors of the grounding switch to open and another position in which the pair of contactors of the main circuit breaker are open and such that the pair of contactors of the grounding switch are closed. The housing has an interior that is filled with air. The main circuit breaker and the grounding switch are in non-longitudinal alignment.
    Type: Grant
    Filed: September 16, 2019
    Date of Patent: September 22, 2020
    Assignee: EMA ELECTROMECHANICS, INC.
    Inventor: Eduardo Montich
  • Reduced size fault interrupter
    Patent number: 10784064
    Abstract: A pole unit including a vacuum interrupter switch having a fixed contact extending into one end of a vacuum chamber and being electrically coupled to a first terminal, and a moving contact extending into an opposite end of the chamber. A sliding contact is rigidly coupled to the moving contact and slidably coupled to a second terminal. The pole unit also includes an electromagnetic actuator including a coil, a rod coupled to the sliding contact and a spring positioned against the rod. The pole unit further includes a transmitter coil and a receiver coil that are electromagnetically coupled, where the receiver coil is electrically coupled to the actuator and is electrically isolated from the transmitter coil. In this configuration, the interrupter switch, the actuator and the receiver coil are at a line potential and the transmitter coil is at ground potential.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: September 22, 2020
    Assignee: S&C Electric Company
    Inventors: Henry Kowalyshen, Keith Benson, Tsvetan Rusev
  • Enhancing an auxiliary compartment of a modular bucket assembly in an arc resistant switchgear
    Patent number: 10784660
    Abstract: A modular bucket assembly of a low voltage switchgear includes a box shaped bucket having an interior bucket side wall, an exterior bucket side wall with vents in a first periphery, a bucket rear wall, a bucket top wall and a bucket bottom wall. All of the bucket walls define an auxiliary compartment of a switchgear cabinet. The vents in the exterior bucket side wall define an arc gas venting passage in communication with an interior of the auxiliary compartment for exhausting arc gasses to an exterior of the cabinet. The modular bucket assembly further comprises a metal enclosure mounted on the bucket bottom wall. The metal enclosure has a side opening with a second periphery such that the second periphery overlaps the first periphery of the exterior bucket side wall. The metal enclosure is configured to house direct power connected devices and protective fuses and withstand arc fault pressures.
    Type: Grant
    Filed: March 11, 2020
    Date of Patent: September 22, 2020
    Assignee: SIEMENS INDUSTRY, INC.
    Inventor: Rahul Rajvanshi
  • Pole part for a low-, medium or high voltage circuit breaker, and method for manufacturing the same
    Patent number: 10770249
    Abstract: A pole part for a medium or high voltage circuit breaker includes: an insert in an insulating housing; and a compensation layer between the insert and the insulating housing. The compensation layer includes a potting material on an epoxy or polyurethane basis, with a shore hardness of 12 to 90 shore A.
    Type: Grant
    Filed: January 24, 2019
    Date of Patent: September 8, 2020
    Assignee: ABB SCHWEIZ AG
    Inventor: Dietmar Gentsch