Magnetic Circuit Patents (Class 188/164)
  • Patent number: 10906763
    Abstract: A system for supporting a reel of stamping foil (2) that is mounted rotatably, includes: two flanges (9, 9?) connected to the shaft of the reel (2, 2?) that is positioned between the flanges, each flange having a rotary shaft extending outward of the reel; two end walls (7, 7?) mounted spaced apart on a guide surface (3?), each wall end having at least one upwardly oriented notch (10, 10?) arranged to receive the shaft of each flange (9, 9?); and a brake (13) which cooperates with and slows the rotation of the reel (2).
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: February 2, 2021
    Inventor: Julien Chretien
  • Patent number: 10756612
    Abstract: The disclosed is a deceleration device including a cylindrical brake member fixed to a rotary shaft, a plurality of permanent magnets arrayed in a circumferential direction of a circle around the rotary shaft, a cylindrical magnet holder holding the permanent magnets, and a switching mechanism that switches between a braking state and a non-braking state. The plurality of permanent magnets include primary magnets and secondary magnets that are arrayed alternatively in the circumferential direction. When viewed on a surface facing the brake member, north poles of the primary magnets are circumferentially adjacent to and in contact with north poles of the secondary magnets, and south poles of the primary magnets are circumferentially adjacent to and in contact with south poles of the secondary magnets. The magnetic holder is ferromagnetic.
    Type: Grant
    Filed: June 9, 2016
    Date of Patent: August 25, 2020
    Inventors: Kenji Imanishi, Hiroshi Nogami, Yasutaka Noguchi, Hiroyuki Yamaguchi, Takuya Fujita
  • Patent number: 10583748
    Abstract: A magnetic system for an automobile having a body portion and a base portion with a first and second set of electromagnets placed on the base station and the body portion respectively and wherein the body portion is adapted to raise off the base portion when sufficient electricity is supplied to the first and second set of electromagnets. A plurality of slider mechanisms operationally attached to the automobile, each having a groove portion running in the vertical direction, allow the body portion to be raised off the base station.
    Type: Grant
    Filed: December 5, 2016
    Date of Patent: March 10, 2020
    Inventors: Sanskar Agrawal, Sanskriti Agrawal
  • Patent number: 10550910
    Abstract: Rotationally symmetric dampers (FIG. 3A) of a new type for eliminating and avoiding vibrations in machines and installations, particularly wind turbines. The damping occurs by magnetically generated eddy currents. In addition, vibration absorbers, particularly pendulum absorbers (7), are equipped with such magnetic dampers, and to installations, particularly wind turbines, that are exposed to vibratory forces and that comprise such vibration absorbers.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: February 4, 2020
    Inventor: Sebastian Glanzner
  • Patent number: 10487913
    Abstract: The flywheel has the ability to vary its behaviour without having to resort to making adjustments when the unit is idle, due to which its inertia movement can be adjusted at the discretion of the technician based on the angular velocity of the system or the possible variations of the flywheel load. The flywheel has the ability to vary the distribution of its point masses due to the influence of at least one magnetic or electromagnetic field that can be modified when in operation. Aimed for the industrial sector dedicated to the construction of machinery.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: November 26, 2019
    Inventor: Evaristo Galiana Domínguez
  • Patent number: 10477848
    Abstract: The spool brake device is equipped with a brake unit, a detector, and a controller. The controller controls the braking force by the brake unit based on the variation of the rotational speed of the spool detected by the detection unit. When the rotational speed is increasing, the controller controls the braking force by the brake unit in the regular braking mode. In the regular braking mode, the controller changes the braking force by the brake unit according to the rotational speed of the spool. In addition to it, when the rotational speed of the spool stops, the controller is to control the braking force by the brake unit in the first braking mode, during a period of predetermined time. In the first braking mode, the controller makes a braking force by the brake unit that is less than the braking force in the regular braking mode.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: November 19, 2019
    Assignee: SHIMANO INC.
    Inventors: Hiroki Ogose, Akira Niitsuma, Yuichiro Ishikawa
  • Patent number: 10227179
    Abstract: A conveyor chute is suitable for use as a store for goods, such as packages and pieces of luggage. The conveyor chute has at least one sliding section with an inclined sliding surface with a direction of fall along the sliding surface as well as a sliding width. The sliding section has a width adjusting mechanism which allows the goods to be distributed across at least part of the sliding width and which thus allows the conveyor chute to be used in an improved manner for storing the goods.
    Type: Grant
    Filed: May 12, 2016
    Date of Patent: March 12, 2019
    Assignee: Siemens Aktiengesellschaft
    Inventors: Michele Vitalini, Juergen Braun, Christoph Hofmann, Oliver Schitthelm
  • Patent number: 10180144
    Abstract: A fan includes a metal plate (100), multiple cylindrical coils (300), a frame (130) and an impeller (400). Multiple teeth (110) annularly arranged and connected with each other are formed on the metal plate (100). Each cylindrical coil (300) is arranged between adjacent teeth (110), and each end of the cylindrical coil (300) is arranged toward corresponding tooth (110). The frame (130) is arranged on a surface of the metal plate (100) and extended along an edge of the metal plate (100). A flow channel (131) and an air outlet (132) connected to the flow channel (131) are formed by the frame (130). The impeller (400) is arranged in the flow channel (131). A stator structure of the fan is simplified by forming the teeth (11) on the metal plate (100).
    Type: Grant
    Filed: October 2, 2015
    Date of Patent: January 15, 2019
    Assignee: COOLER MASTER CO., LTD.
    Inventors: Fu-Lung Lin, Shih-Wei Huang, Ai-Quan Wan
  • Patent number: 10110089
    Abstract: Described herein is a device comprising members in a kinematic relationship. The kinematic relationship is at least partially governed by at least one magnetically induced force that introduces a force threshold that, in effect, provides a threshold to part movement and confers a degree of hysteresis, preventing movement until a sufficiently large energizing force is applied. The effect may be further altered by use of an additional magnetically induced force interaction with at least one further member to urge or slow movement once started and/or to prevent movement once a new position is reached.
    Type: Grant
    Filed: August 18, 2015
    Date of Patent: October 23, 2018
    Inventors: Andrew Karl Diehl, Christopher James Allington
  • Patent number: 9962717
    Abstract: Disclosed herein are instruments and methods for performing both sample homogenization and sample clarification by centrifugation with a single instrument without transferring the sample to a new sample container and without removing or repositioning the sample container within the instrument. In some embodiments, the instrument may automatically perform centrifugation after homogenization. In other embodiments, the instrument may perform both homogenization and centrifugation simultaneously.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: May 8, 2018
    Assignee: MP Biomedicals, LLC
    Inventor: Miodrag Micic
  • Patent number: 9765850
    Abstract: The present disclosure provides a stator assembly comprising a high damping core, a low damping core coaxially aligned with the high damping core, a plurality of slots defined in at least one of the high damping core and the low damping core and extending between a first axial end face and a second axial end face of the at least one of the high damping core and the low damping core, and a control winding being integrally continuous and successively wound through the plurality of slots, such that the control winding enters the plurality of slots from at least one of the first axial end face and the second axial end face. In various embodiments, the control winding is configured to receive a current.
    Type: Grant
    Filed: October 13, 2015
    Date of Patent: September 19, 2017
    Inventor: Richard A. Himmelmann
  • Patent number: 9709113
    Abstract: An electric drum brake comprises a back plate. Shoes are operatively mounted to the backplate and displaceable to a deployed condition against a wheel drum from a retracted condition. An electrically powered actuation mechanism is adapted to convert electric power to a movement of the shoes to the deployed condition. A safety actuation mechanism comprises a lever having a first end adapted to receive a mechanical force. A joint configuration connects the lever to at least one of the shoes to convert movements of the lever to movements of at least one of the shoes between the deployed condition and the retracted condition without said electric power. A biasing member produces a biasing action against at least one of the lever and the joint configuration to maintain the shoes in the deployed condition, the mechanical force being against the biasing action to maintain the shoes in the retracted condition.
    Type: Grant
    Filed: June 12, 2013
    Date of Patent: July 18, 2017
    Assignee: Roger Mercure
    Inventor: Roger Mercure
  • Patent number: 9631688
    Abstract: An electromagnetic clutch includes a rotation transmission member supported by an input shaft portion via a bearing. The rotation transmission member includes a movement regulating portion having abutment portions that abut against the bearing. The clutch further includes first and second spring members that bias an armature toward a braking member, and a connecting member overlaid on the movement regulating portion. The connecting member has first holes at portions facing the abutment portions, and second holes at portions facing regions between the abutment portions. One-end portions of the first and second spring members are attached to the armature. First fixing members inserted into the first holes fix the other-end portions of the first spring members to the connecting member. Second fixing members inserted into the second holes fix the other-end portions of the second spring members to the connecting member and fix the connecting member to the movement regulating portion.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: April 25, 2017
    Assignee: OGURA CLUTCH CO., LTD.
    Inventors: Yoshihiro Kurosu, Takashi Yamaguchi, Yasuyuki Iizuka, Yoshikazu Arai
  • Patent number: 9435387
    Abstract: Device and apparatus for controlling the operating mode of a coupling assembly, coupling and control assembly and electric motor disconnect and pass through assemblies are provided. The device is a switchable linear actuator device to control the operating mode of a coupling assembly. A plurality of magnetic sources produce corresponding magnetic fields to create a net translational force. A stator structure includes at least one electromagnetic source and a translator structure includes a permanent magnet source magnetically coupled to the stator structure across a radial air gap. The translator structure is supported for translational movement relative to the stator structure along an axis between first and second stable axial end positions which correspond to first and second operating modes of the coupling assembly and an unstable axial equilibrium position between the end positions.
    Type: Grant
    Filed: September 16, 2014
    Date of Patent: September 6, 2016
    Assignee: Means Industries, Inc.
    Inventors: John W. Kimes, Patrick J. McCleer, Terry O. Hendrick
  • Patent number: 9428024
    Abstract: A bump shock absorbing device may include: a stopper member provided on a vehicle body and contacted and compressed against a chassis according to a bump of the vehicle body; and a magnetic force generation member including a pair of magnetic force generation members provided to face the chassis and the vehicle body, respectively, and generating a magnetic force to absorb shock caused by the bump of the vehicle body.
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: August 30, 2016
    Assignee: HYUNDAI MOBIS CO., LTD.
    Inventor: Jong Woo Park
  • Patent number: 9422990
    Abstract: Drive devices for coupling a drive mechanism to an input shaft and methods of providing coupling control through an electromagnet are described herein. The drive devices include a driven member operatively coupled to a clutch assembly engageable with an input shaft. The clutch assembly includes an electromagnet, an actuator activated by the electromagnet, and a clutch pack that is biased into increased frictional engagement by the actuator to transfer the torque from the driven member to the input shaft. The methods include providing such a drive device and activating the electromagnet.
    Type: Grant
    Filed: April 19, 2013
    Date of Patent: August 23, 2016
    Inventor: Paul T. McCrary
  • Patent number: 9376295
    Abstract: An exemplary elevator brake device includes a permanent magnet. A core supports the permanent magnet. A first plate is positioned near one side of the core with a first gap between the first plate and the core. A second plate is positioned near another side of the core with a second gap between the second plate and the core. The first and second plates remain fixed relative to each other and are arranged such that relative movement is possible between the core and the plates. An electromagnet selectively influences an amount of magnetic flux across the first and second gaps, respectively, to control a braking force of the brake.
    Type: Grant
    Filed: December 10, 2007
    Date of Patent: June 28, 2016
    Assignee: Otis Elevator Company
    Inventors: Zbigniew Piech, Wojciech Szelag
  • Patent number: 9243674
    Abstract: A power tool braking device, in particular a hand-held power tool braking device, of a portable power tool has at least one magnetic field braking unit. The power tool braking device comprises at least one mechanical activation unit.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: January 26, 2016
    Assignee: Robert Bosch GmbH
    Inventor: Florian Esenwein
  • Publication number: 20150027824
    Abstract: A motor and brake assembly includes a mounting member. A stator winding assembly, a brake assembly, a hub, and a rotor magnet assembly. The stator winding assembly is mounted to the mounting member. The brake assembly is operably connected to the mounting member. The hub is rotatably coupled to the mounting member. The rotor magnet assembly is mounted to an inside of a radially outer wall of the hub. The brake assembly is operable to move a component of the brake assembly between an engaged position where the component engages the inside of the radially outer hub wall and a disengaged position where the component is spaced apart from the inside of the radially outer hub wall.
    Type: Application
    Filed: August 18, 2014
    Publication date: January 29, 2015
    Inventors: Nirav Pandya, Thomas Tuckowski, John Jindra, Robert Bekoscke, George H. Waterman
  • Patent number: 8932185
    Abstract: A brake device with built-in power generation mechanism and permanent magnetism eddy current comprises: an external rotator including a flywheel and a permanent magnet fixed at an inner periphery of the flywheel; an internal stator including a fixing bracket and a tile-shaped armature mounted at an outer periphery of the fixing bracket; a brake mechanism including a magnetic-conductive plate; when the external rotator is rotated the tile-shaped armature generates a three-phase alternating current, and the arc-shaped metal plate generates eddy current and braking torque of magnetic resistant; a cooling fan mounted on the flywheel to produce a cooling effect; an adjustment mechanism provided for adjusting a gap between the arc-shaped metal plate and the permanent magnet to adjust magnetic flux, and thus change the braking resistant load; a controller transferring the three-phase alternating current into direct current for required power of the control panel and server.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: January 13, 2015
    Assignee: Chi Hua Fitness Co., Ltd.
    Inventor: Li-Min Hsieh
  • Patent number: 8869952
    Abstract: A yoke core of an electromagnetic brake system includes a rotation shaft hole portion through which a rotation shaft is penetrated, and additionally includes an inner yoke portion and an outer yoke portion which are arranged on both inner and outer sides, by pinching a concave groove. A coil is accommodated in the concave groove and a magnetic flux is generated by applying electricity to attract an armature. The armature has a penetrating hole portion in the center, and a protruded shaft portion formed on the inner yoke portion is inserted to the penetrating hole portion. The rotation shaft has one side thereof rotatably supported by a support portion of a housing, and the other side thereof rotatably supported by the protruded shaft portion via the armature and a planetary gear mechanism. Accordingly, it is not necessary to provide bearings or the like.
    Type: Grant
    Filed: January 4, 2013
    Date of Patent: October 28, 2014
    Assignee: Alps Electric Co., Ltd.
    Inventor: Tadashi Sano
  • Publication number: 20140262633
    Abstract: A braking system for safely collecting brake dust produced by operation of a braking mechanism. The braking system comprises a collector apparatus coupled with a braking mechanism. The collector apparatus is able to include a shroud that surrounds the braking mechanism and a catch element coupled with the shroud for collecting brake dust exiting the shroud. As a result, when coupled with the braking mechanism, the collector apparatus is able to ensure that most or all brake dust, such as copper or other particles from the braking mechanism that break off from the breaking mechanism during operation of the braking mechanism, are removed from the braking mechanism and collected by the filter/catch of the collector mechanism.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Inventors: Alex E. Kunzler, Peter C. Kunzler, Gary R. McLuen, Daniel R. Baker
  • Patent number: 8727078
    Abstract: The invention is an incrementally actuated eddy current braking system. The system comprises first and second primary members, which further comprise arrays of permanent magnets arranged in alternating polarity. The respective magnets of the arrays face one another. A means for incremental displacement is drivingly connected to at least one of the primary members enabling the movement of said members relative to one another.
    Type: Grant
    Filed: February 16, 2005
    Date of Patent: May 20, 2014
    Assignee: Velocity Magnetics, Inc.
    Inventors: Domenic P. Marzano, Michael Gustason
  • Patent number: 8701843
    Abstract: A flywheel assembly for exercise devices includes a flywheel. A first disc and a second disc sequentially received in the flywheel and securely attached to each other. A control plate is rotatably sandwiched between the first disc and the second disc. Multiple magnetic devices are respectively and radially connected to the control plate. A shaft centrally extends through the first disc, the second disc and the flywheel, and laterally mounted onto the second disc, wherein the flywheel is rotatable relative to the first disc, the control plate with the magnetic devices and the second disc. A drive device is laterally mounted onto the second disc for driving the control plate and adjusting the damping to the flywheel when the control plate is rotated relative to the first disc and the second disc due to the operation from the drive device.
    Type: Grant
    Filed: April 14, 2011
    Date of Patent: April 22, 2014
    Inventor: Kuang-Shiung Kao
  • Patent number: 8646550
    Abstract: Vehicle wheels may be equipped with a stator and rotor to induce current to generate electricity as the vehicle wheels rotate or to slow down the vehicle wheels in response to the application of a brake of the vehicle. Air may be sucked through the vehicle wheels through mesh screens to create air flow that passes through ductwork to reach a turbine generator, which generates electricity in response to blade rotation from air flow. A roof mounted solar energy conversion system may generate electricity. A vehicle power supply boosts its energy from all the electricity generated.
    Type: Grant
    Filed: May 21, 2012
    Date of Patent: February 11, 2014
    Inventor: Krassimire Mihaylov Penev
  • Patent number: 8505697
    Abstract: A braking system for an aircraft provided with undercarriage, wherein an axial-flux reversible electrical machine is associated to at least one wheel of the undercarriage and is set in rotation by the rotation of the wheel. Current-dissipator is provided, which can be connected to the windings of the axial-flux reversible electrical machine during rotation of the wheel in the landing phase for dissipating in the current-dissipator the induced currents generated by the machine, which behaves as current generator, and producing a braking effect that slows down the movement of the wheel. An epicyclic reducer is provided between the wheel of the undercarriage and the rotor of the reversible electrical machine. The epicyclic reducer provides a transmission ratio T in such a way that the rotor will turn at a velocity T? with respect to the velocity of rotation ? of the wheel.
    Type: Grant
    Filed: February 16, 2011
    Date of Patent: August 13, 2013
    Assignee: Alenia Aeronautica S.p.A.
    Inventors: Vincenzo Anastasio, Fabrizio Cuomo
  • Patent number: 8397893
    Abstract: An electromagnetic inertia brake for a vehicle transmission in a vehicle powertrain has a non-rotatable armature and a brake reaction plate in which a friction brake retarding force is developed on both sides of the brake reaction plate, the brake reaction plate being secured to a transmission torque input shaft, whereby rotary elements of transmission gearing are braked during a transmission shift interval to improve shift quality.
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: March 19, 2013
    Assignee: Eaton Corporation
    Inventor: Michael J. Hornbrook
  • Patent number: 8397885
    Abstract: A magneto-rheological fluid brake includes a housing, a non-magnetically permeable separating ring, a plurality of magnetically permeable blocks, a plurality of magnetically permeable bars, an axle, an upper magnetically permeable block, a lower magnetically permeable block, and a magneto-rheological fluid. The magneto-rheological fluid is surrounded by a plurality of coils and a plurality of pole coils for increasing the area of magnetic permeability of the magneto-rheological fluid subjected to an applied magnetic field. Accordingly, the magneto-rheological fluid brake demonstrates an enhanced braking force and is free from a complete failure of the braking force.
    Type: Grant
    Filed: May 16, 2011
    Date of Patent: March 19, 2013
    Assignee: National Taipei University of Technology
    Inventors: Yaojung Shiao, Cheng-Yang Chang
  • Patent number: 8393443
    Abstract: An electric drive system for a vehicle; said drive system including an electric motor at at least one wheel of said vehicle; said electric motor comprising an electric field source adapted to induce rotational torque in the brake disc associated with said wheel of said vehicle. In an alternative form there is provided a method of imparting a torque to a wheel of a vehicle; said wheel having a brake disc rotor mechanically associated with it; said method comprising utilizing said rotor as a motor rotor whereby said rotor performs a dual function of a disc brake and a motor rotor.
    Type: Grant
    Filed: November 9, 2006
    Date of Patent: March 12, 2013
    Assignee: Evans Electric Pty Limited
    Inventor: Paul Evans
  • Patent number: 8281723
    Abstract: A vehicle for a rail-borne transportation system includes an eddy current brake that contains a large number of magnetic poles and a mechanism for activating the magnetic poles for braking. The magnetic poles are formed by movably supported permanent magnets, and the activation mechanism switches the permanent magnets from an inactive position into an active position.
    Type: Grant
    Filed: March 13, 2008
    Date of Patent: October 9, 2012
    Assignee: ThyssenKrupp Transrapid GmbH
    Inventors: Friedrich Loeser, Qinghua Zheng
  • Patent number: 8205727
    Abstract: An electromagnetic brake (20), in particular for an electric drive is provided, having a brake body (3), which is provided with a sleeve-shaped permanent magnet (4), an electromagnet (5) with an exciting coil (6), an external ring in the form of an external pole and an internal ring (8) in the form of an internal pole, wherein an armature disc (12) rotatably connected to a shaft is attractable against the brake body (3) or the external or internal ring surfaces by the permanent magnet (4) force acting against a return spring force. When the exciting coil is powered, the permanent magnet (4) magnetic field is compensated in such a way that the armature disc (12) is lifted up from the brake body (3) by the spring force, thereby allowing the brake to be released.
    Type: Grant
    Filed: August 27, 2005
    Date of Patent: June 26, 2012
    Assignee: Kendrion Binder Magnete GmbH
    Inventors: Jurgen Berndt, Erwin Messner, Dirk Bottcher
  • Patent number: 8151950
    Abstract: A brake assembly (18) includes a permanent magnet (36) that generates a first magnetic field (52) in a direction that causes application of a clamping force on a brake disk (22). An electromagnet (38) is energized with current of a proper polarity to generate a second magnetic field (54) opposite the first magnetic field (52). The rate and magnitude at which current is applied produces a controlled repulsive force between the two magnetic fields (52, 54) to disengage the brake disk (22). As a distance between the permanent magnet (36) and the electromagnet (38) increases, the difference in field strength decreases until an equilibrium position is obtained. The brake is applied and released in a controlled manner by varying the strength of the second magnetic field (54) relative to the first magnetic field generated by the permanent magnet (36).
    Type: Grant
    Filed: April 17, 2006
    Date of Patent: April 10, 2012
    Assignee: Otis Elevator Company
    Inventor: Richard N. Fargo
  • Patent number: 8058757
    Abstract: An electric motor (102) with passive integral brake (104) includes a stator (204) with one or more magnetic field controllable coils (206) and a rotor (208) with a rotor shaft (210) positioned within an inner diameter (212) of the stator (204). The rotor (208) is operable to rotate about a longitudinal axis (214) of the rotor shaft (210). The electric motor (102) with passive integral brake (104) also includes a brake shoe (302) positioned within the inner diameter (212) of the stator (204) along the longitudinal axis (214) of the rotor shaft (210). The brake shoe (302) is operable to apply a braking force to the rotor shaft (210) and remove the braking force from the rotor shaft (210) responsive to a magnetic field strength produced by the one or more magnetic field controllable coils (206). One or more springs (220) passively apply the braking force.
    Type: Grant
    Filed: December 15, 2009
    Date of Patent: November 15, 2011
    Assignee: Hamilton Sundstrand Corporation
    Inventor: Richard A. Himmelmann
  • Patent number: 8037978
    Abstract: An eddy current magnetic braking system that is based on drag created when a conductor moves through a stationary magnetic field. As the magnetic field increases the drag value also increases. The invention provides a magnetic braking system for use on zip line/cable rides and trolleys. Alternate designs of the present invention include a magnetic braking system having a trolley that moves on a zip line/cable to a brake block which is connected to a pulley cable, as the trolley pushes the brake block, the pulley moves the conductor into a magnetic field creating an eddy current brake that slows the trolley to a stop.
    Type: Grant
    Filed: March 13, 2007
    Date of Patent: October 18, 2011
    Inventor: Daniel Boren
  • Patent number: 7946398
    Abstract: A permanently excited magnetic hysteresis brake (1) comprises a support roller (7) rotatable about a fixed axle (9), a magnetic element (3), a hysteresis element (2) and an adjusting device for adjusting the position of the magnetic element (3) and hysteresis element (2) relative to one another and for adjusting the braking torque acting via the support roller (7) on the yarn (5). The magnetic hysteresis brake (1) has only one single mechanically acting actuator (18) for adjusting the braking torque. Both the adjustment of the braking torque to the desired value for the operation of the brake (1) and the adjustment of the braking torque when calibrating the brake (1) are carried out by actuation of this one actuator (18). The structure and handling of the magnetic hysteresis brake (1) can be simplified thereby. The magnetic hysteresis brake (1) can be used to maintain a uniform thread tension on textile machines.
    Type: Grant
    Filed: February 21, 2007
    Date of Patent: May 24, 2011
    Assignee: Oerlikon Textile GmbH & Co. KG
    Inventors: Christian Felber, Christian Schmieger
  • Publication number: 20110077595
    Abstract: A brake mechanism for an injection device for generating a braking action on a moving, e.g. rotating, part or component of the injection device.
    Type: Application
    Filed: August 26, 2010
    Publication date: March 31, 2011
    Inventors: Adrian Eich, Aurèle Horisberger, Patrick Hostettler, Malte Kladiwa, Stefan Meier, Peter Stettler, Jürgen Wittmann
  • Patent number: 7845475
    Abstract: The present invention provides a controller for a magnetic wheel, which is added with an alternated adjusting seat within the external rotary disk of the magnetic wheel controller. A flexible locker of alternated adjusting seat can be flexibly locked into second latch groove of external rotary disk. When a cam shaft of a tester has not reached a signal locating point, but the cable of magnetic component has been fixed during initial assembly of the magnetic wheel and controller, the flexible lock is flexibly locked with a second latch groove, such that the external rotary disk and alternated adjusting seat will continue to rotate until the tester senses the locating signal. Thus, no manual adjustment of cable is required in order to shorten assembly time and improve manufacturing efficiency for a higher practicability.
    Type: Grant
    Filed: May 19, 2006
    Date of Patent: December 7, 2010
    Assignee: Her Yuan Chyun Co., Ltd.
    Inventor: Hsien-Mo Lin
  • Patent number: 7841456
    Abstract: The invention concerns an adjustable hysteresis driver, with a rotor component (5) on the input side that can be driven and/or a stator component (7?, 7?), with an armature component (8) on the output side in fixed connection with a shaft (4), with a hysteresis component (9) connected to the armature component (8), the stator component (7?, 7?) comprising an electromagnet (7a) or permanent magnet (18) by means of which a magnetic flux can be induced in the rotor component (5) and/or the stator component (7?, 7?), and in which the torque that can be transmitted can be adjusted by electromagnetic or electro-mechanical means. The purpose of the invention is to propose a hysteresis driver with improved adjustability.
    Type: Grant
    Filed: November 29, 2005
    Date of Patent: November 30, 2010
    Assignee: 2F Friedrichshafen AG
    Inventors: Jürgen Pescheck, Stefan Unseld, Konrad Thoma
  • Publication number: 20100213017
    Abstract: A wheel-type resistance device includes a flywheel rotatably mounted on a shaft, a mount secured to the shaft and having a slot, left and right mounting strips anchored to the mount and having pulled ends adjacent to the slot, left and right pulling cords respectively connected to the pulled ends and respectively having left and right lugged ends, a guiding block operable to move along the slot such that a hauling force is transmitted for lugging the lugged ends to thereby move the mounting strips, and a force apportioning member coupling the lugged ends with the guiding block such that during movement of the guiding block, a main amount of the hauling force is initially diverted to the left pulling cord to move the left mounting strip, and the hauling force transmitted to the left and right lugged ends is subsequently equalized to move the left and right mounting strips.
    Type: Application
    Filed: February 23, 2009
    Publication date: August 26, 2010
    Inventor: Chung-Ping Cheng
  • Patent number: 7772730
    Abstract: The present invention provides a magnetic wheel including a foundation body, a cover body, a fly wheel, a central axis, a drive motor, a drive gear assembly and two magnetic control strips. The drive gear assembly is driven by an output axis of the drive motor, enabling the swinging of the gear wheel of two magnetic control strips. The drive gear assembly has a gearshift unit, a coupling element and rear gear. The axial direction of the coupling element and rear gear is the same as the central axis of the magnetic wheel. The gear wheel of two magnetic control strips is mated with the rear gear through spur gear, thus making it easier to improve the manufacturing precision and drive efficiency and also reduce the manufacturing cost for better economic efficiency.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: August 10, 2010
    Assignee: Her Yuan Chyun Co., Ltd.
    Inventor: Hsien-Mo Lin
  • Publication number: 20100133052
    Abstract: A motor brake includes a locating plate affixed to a motor around the motor shaft, an outer panel connected to the locating plate with screws, a brake lining affixed to the locating plate, an inner panel movable along the screws between the brake lining and the outer panel, spring members connected between the inner panel and the outer panel for forcing the inner panel against the brake lining to stop the shaft of the motor from rotation, and two windings respectively mounted in the inner panel and the outer panel for attracting each other to move the inner panel away from the brake lining for allowing rotation of the motor shaft when electrically connected.
    Type: Application
    Filed: December 2, 2008
    Publication date: June 3, 2010
    Inventor: Ta-Chuen Wei
  • Patent number: 7681704
    Abstract: An electromagnetic brake for an input shaft of a vehicle transmission is disclosed. The brake includes an armature separated from an electromagnetic coil pole face by a controlled air gap. A spring release feature ensures precise armature disengagement when the brake is deactivated. A wear compensation feature maintains uniformity of the air gap.
    Type: Grant
    Filed: December 12, 2006
    Date of Patent: March 23, 2010
    Assignee: Eaton Corporation
    Inventors: John A. Schenkel, III, Michael J. Hornbrook, Mark L. Beakas
  • Publication number: 20090309522
    Abstract: A generator-brake integration type rotating machine comprises an inertia disk coupled to a shaft to rotate; a rotor ring rotating around the shaft inside the inertia disk and having magnets mounted to a circumferential outer surface thereof; and a laminated yoke positioned between the inertia disk and the rotor ring, and having brake coils located at regular angular intervals on a circumferential outer surface thereof and generator coils located at regular angular intervals on a circumferential inner surface thereof. The generator coils are wound on first bobbins which project inward from the circumferential inner surface of the laminated yoke, and the brake coils are wound on second bobbins which project outward from the circumferential outer surface of the laminated yoke. The laminated yoke is fixedly coupled to a stator holder, which in turn is coupled to the shaft by way of a bearing and is fixedly coupled to a housing.
    Type: Application
    Filed: October 9, 2008
    Publication date: December 17, 2009
    Inventor: Jinkyu SEO
  • Publication number: 20090266666
    Abstract: Magneto-rheological clutch and wheel transmission apparatuses and methods are provided. According to one aspect, a magneto-rheological clutch system can include first and second drive members and first and second driven members. A first gap can be present between the first drive and first driven members. A second gap can be present between the second drive and second driven members. A drive wheel and a snow blower impeller can be connected to the first and second driven member, respectively. First and second MR fluids can be disposed in the first and second gaps, respectively. A first magnetic field can be applied to the first MR fluid for engaging the drive wheel. A second magnetic field can be applied to the second MR fluid for engaging the snow blower impeller. The provided apparatuses and methods can also be applied to mower blades and wheels.
    Type: Application
    Filed: April 29, 2008
    Publication date: October 29, 2009
    Inventor: Andrew Joseph McDaniel
  • Patent number: 7591351
    Abstract: A self-centering brake for a lift provides for the same braking moment in the case of normal operation and in the case of failure of a brake half. The brake consists of a housing which is U-shaped in cross-section, wherein a limb of the U corresponds with a brake half. The brake halves are of identical construction. An active brake lining and a passive brake lining are provided for each brake half. The active brake lining is loaded by a spring force of a compression spring. In the case of failure of a brake half the passive brake lining takes over the function of the active brake lining.
    Type: Grant
    Filed: October 19, 2004
    Date of Patent: September 22, 2009
    Assignee: Inventio AG
    Inventor: Daniel Fischer
  • Publication number: 20090159377
    Abstract: An apparatus for securing movable elements of a multiple-axis drive mechanism with respect to the fixed base thereof during launch to prevent damage while unpowered. Mating surfaces of the lock secure the mechanism about all three axes of motion. Thus, the drives need to be only sufficiently designed to break free one element of the launch lock from the other element. Tapered or other guiding surfaces of the two elements of the launch lock make it self-aligning, such that mating surfaces are guided together once placed in sufficiently close proximity.
    Type: Application
    Filed: December 18, 2008
    Publication date: June 25, 2009
    Inventors: Steven R. Wassom, Morgan Davidson, Richard Sanders
  • Patent number: 7537097
    Abstract: An electromagnetic damper control device including a first member containing a magnet, and a second member containing a solenoid combined to permit relative rotation. The relative rotation of the first and second members induces an electromagnetic force in a solenoid that serves as a damping force to a motion. The device further comprises a current limiter device operated by a voltage generated in the solenoid due to the relative rotation of the first member and second member. The current limiter devices regulates the electrical current flowing in the solenoid to a specific value based on the voltage generated in the solenoid so that by regulating the damping force of the electromagnetic damper a desired damping force can be applied to the electromagnetic damper without requiring external electrical power.
    Type: Grant
    Filed: July 31, 2003
    Date of Patent: May 26, 2009
    Assignees: The Foundation for the Promotion of Industrial Science, Kayaba Industry Co., Ltd.
    Inventors: Yoshihiro Suda, Kouji Hio, Takuhiro Kondo, Hideki Yamagata
  • Publication number: 20090084640
    Abstract: A brake arrangement includes a rotor, an annular magnet located at an inner circumferential surface of the rotor, a laminated silicon steel structure, plural sets of coils, and a brake mechanism. The laminated silicon steel structure is formed by stacking a plurality of annular silicone steel sheets, each of which is assembled from several segments. Each of the silicone steel sheets includes a plurality of coil winding sections, each of which has a polar end oriented toward and spaced from an inner circumferential surface of the annular magnet by a predetermined clearance. The plural sets of coils are separately wound on the coil winding sections. The brake mechanism is arranged near the rotor and includes a core and at least two electromagnetic coils separately wound on two electromagnetic coil winding sections on the core.
    Type: Application
    Filed: September 27, 2007
    Publication date: April 2, 2009
    Inventor: YU-YU CHEN
  • Patent number: 7493996
    Abstract: A rotational coupling device for use as a clutch and/or brake is provided having improved magnetic efficiency and structural integrity. A field shell and a rotor of the device each define radially spaced, axially extending inner and outer poles. The inner pole of the rotor is disposed radially outwardly of the inner pole of the field shell resulting in improved magnetic efficiency.
    Type: Grant
    Filed: June 10, 2005
    Date of Patent: February 24, 2009
    Assignee: Warner Electric Technology LLC
    Inventor: James A. Pardee
  • Publication number: 20080283348
    Abstract: An electric drive system for a vehicle; said drive system including an electric motor at least one wheel of said vehicle; said electric motor comprising an electric field source adapted to induce rotational torque in the brake disc associated with said wheel of said vehicle. In an alternative form there is provided a method of imparting a torque to a wheel of a vehicle; said wheel having a brake disc rotor mechanically associated with it; said method comprising utilising said rotor as a motor rotor whereby said rotor performs a dual function of a disc brake and a motor rotor.
    Type: Application
    Filed: November 9, 2006
    Publication date: November 20, 2008
    Inventor: Paul Evans