Solenoid And Core Patents (Class 310/30)
  • Patent number: 10557460
    Abstract: The present invention relates to a flooring system for generating electricity from users as they walk. A flooring system (1) for generating electricity, comprising: a plurality of generators (100), each generator (100) having a support, each generator being arranged to generate electricity from linear motion of the support in a first direction; and a plurality of tiles for supporting one or more people, wherein each support supports a plurality of tiles.
    Type: Grant
    Filed: September 14, 2016
    Date of Patent: February 11, 2020
    Assignee: Pavegen Systems Limited
    Inventors: Craig Webster, Philip Tucker
  • Patent number: 10543591
    Abstract: A machine tool is disclosed. A magneto-pneumatic striking mechanism has a primary actuator arranged around an axis of movement and includes a first magnetic coil and a second magnetic coil. The striking mechanism has, on the axis of movement within the magnetic coils, a striker and a die. Furthermore, the striking mechanism has an air spring acting on the striker in a direction of impact. The air spring may be entirely or partially within the first magnetic coil. The air spring has a ventilation opening that is open to the environment if the striker is less than 10% of its stroke away from the die, and otherwise the ventilation opening is closed. An exchange of air with the environment is therefore only possible when the striker is near the die or is near the impact position.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: January 28, 2020
    Assignee: Hilti Aktiengesellschaft
    Inventors: Albert Binder, Michael Wierer, Christoph Hakenholt
  • Patent number: 10527030
    Abstract: A device for use by an individual for sexual pleasure varying in form, i.e. shape, during its use and allowing for the user to select multiple variations of form either discretely or in combination and for these dynamic variations to be controllable simultaneously and interchangeably while being transparent to the normal use of the device, including the ability to insert, withdraw, rotate, and actuate the variable features manually or remotely. According to embodiments of the invention localized and global variations of devices are implemented using fluidics and electromagnetic pumps/valves wherein a fluid is employed such that controlling the pressure of the fluid results in the movement of an element within the device or the expansion/contraction of an element within the device.
    Type: Grant
    Filed: October 17, 2016
    Date of Patent: January 7, 2020
    Assignee: Obotics Inc.
    Inventor: Bruce Murison
  • Patent number: 10491091
    Abstract: A system, method, and apparatus for kinetic energy harvesting are disclosed. An example electronic device includes a processor and a battery. The electronic device also includes first and second magnet housings. Each of the first and second magnet housing contains a central magnet and a ferrous shield connected to the respective magnet housings. One of the ferrous shields is located on a first side of the first magnet housing that is opposite of a second side facing the second magnet housing. The other of the ferrous shields is located on a first side of the second magnet housing that is opposite of a second side facing the first magnet housing. The first magnet housing and the second magnet housing are configured to generate a current to charge the battery.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: November 26, 2019
    Assignee: Stryde Technologies, Inc.
    Inventors: Tejas Attreya Shastry, Michael Geier, Alexander Smith
  • Patent number: 10468957
    Abstract: A linear vibration motor, comprising a housing, a stator, a vibrator, and an elastic support member (1). The vibrator comprises a mass block (2) and magnets (3). The stator comprises coils and circuit boards. The coils comprise a first coil (4) and a second coil (5). The circuit boards comprise a first coil fixing board (6) and a second coil fixing board (7). The first coil and the second coil are respectively located on two opposite sides of the mass block. The first coil is connected with the first coil fixing board. The second coil is connected with the second coil fixing board. The first coil fixing board is fixed on a first washer board (8). The second coil fixing board is fixed on a second washer board (9). The first washer board and the second washer board are respectively fixed on the motor housing. The vibration motor can reduce the loss of magnetic field and improve the utilization rate of magnetic field while implementing vibration feedback on a touch operation of a user.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: November 5, 2019
    Assignee: GOERTEK INC.
    Inventors: Yueguang Zhu, Baoyu Liu
  • Patent number: 10424999
    Abstract: The present invention makes thinness or widthwise compactness possible, while exhibiting the advantages of obtaining stable vibrations and excellent impact strength, just as in a linear vibration motor equipped with a fixed shaft. A linear vibration motor equipped with: a needle equipped with a magnet and a spindle part; a frame for slidably supporting the needle in one axial direction; a coil for driving the magnet in the one axial direction, and affixed to the frame; and an elastic member for imparting an elastic force to the needle in opposition to the driving force imparted on the magnet. Therein, the needle is equipped with a pair of shaft parts which project in opposite directions in the one axial direction, and the frame is equipped with bearings for slidably supporting the pair of shaft parts.
    Type: Grant
    Filed: July 27, 2015
    Date of Patent: September 24, 2019
    Assignee: Nidec Copal Corporation
    Inventor: Yoshinori Katada
  • Patent number: 10411575
    Abstract: A linear actuator may include a stator; a movable element; a spring member connected to the movable element and the stator and structured to support the movable element in such a way as to be movable with respect to the stator in a direction of an axis line; a magnetic drive mechanism structured to drive the movable element in the direction of the axis line; and a gel damper member placed at a position on a center line of the movable element or one of a group of positions surrounding the center line, between the stator and the movable element.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: September 10, 2019
    Assignee: NIDEC SANKYO CORPORATION
    Inventors: Tadashi Takeda, Hiroshi Kitahara, Takeshi Sue
  • Patent number: 10375479
    Abstract: An electric motor including a driven element, a magnet assembly and a driving element. The driven element being driven in a direction of movement. The magnet assembly is includes first and second magnets each having first and second magnetic poles. The first magnetic pole of the first magnet and the first magnetic pole of the second magnet being proximate to each other and facing each other thereby defining a first magnetic zone therebetween. The first magnetic poles all being similar, and the second magnetic poles all being similar. The driving element is proximate to the magnet assembly, producing a magnetic field within the driving element that is primarily orthogonal to the direction of movement.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: August 6, 2019
    Inventor: Curtis E. Graber
  • Patent number: 10363196
    Abstract: A vibrator apparatus includes a moving coil, which is rigidly attached to a member, e.g. a frame or beam, of a vibration device. The moving coil is for an elected vibration mode of the apparatus configured to receiving electric signals, e.g. pulsating and/or sinusoidal electric signals, from a signal unit. The moving coil co-operates with a permanent magnet, which is suspended by springs attached to the member, and the coil and the magnet are mutually linearly and coaxially movable upon application of electric signals to the moving coil. An actual distance of movement being part of a distance between extreme positions and being less than the axial length of the moving coil. The springs are located at a distance from a respective axial end portion of the permanent magnet.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: July 30, 2019
    Assignee: Redcord AS
    Inventor: Tore Planke
  • Patent number: 10312785
    Abstract: A domestic appliance, in particular a beverage dispenser machine, with a beverage pump having at least one pole sleeve for conducting a magnetic flux generated by a magnetic actuator, wherein the pole sleeve has, along a main flow direction of the liquid, a substantially changing magnetic permeability, wherein the pole sleeve has a reduced magnetic permeability in an axial edge region.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: June 4, 2019
    Assignee: Sysko AG
    Inventors: Norbert Helbling, Michael Wisskirchen, Fred Partzsch
  • Patent number: 10309357
    Abstract: A fluid injector for a combustion engine has a tubular body which hydraulically connects a fluid inlet end of the injector to a fluid outlet end of the injector. A magnetic core is affixed inside the body, a solenoid is disposed on the outside of the body, and an axially moveable armature is disposed inside the body. A valve assembly controls an axial flow of fluid through the body. The valve assembly has a valve needle to be operated by the armature and a sleeve of diamagnetic material which is located radially between the armature and the body.
    Type: Grant
    Filed: August 27, 2014
    Date of Patent: June 4, 2019
    Assignee: Continental Automotive GmbH
    Inventors: Stefano Filippi, Mauro Grandi, Francesco Lenzi
  • Patent number: 10299984
    Abstract: A system includes a processor configured to generate stimulation control signals in response to a detection of a respiratory disorder. The system further includes at least one kinesthetic effector with a vibrating electromechanical transducer applied to a site on a patient's skin for delivering a kinesthetic stimulation energy determined by the control signals. The processor is further configured to determine the effectiveness of a stimulation by detecting a cessation of the respiratory disorder. The processor is further configured to extend the stimulation control signals for a determined duration following the cessation of the respiratory disorder.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: May 28, 2019
    Assignees: SORIN CRM SAS, INSERM-INSTITUT DE LA RECHERCHE MÉDICALE, UNIVERSITÉ JOSEPH FOURIER, UNIVERSITÉ DE RENNES 1
    Inventors: Amel Amblard, Laurence Graindorge, Delphine Feuerstein, Alfredo Hernandez, Jean-Louis Pépin
  • Patent number: 10292898
    Abstract: A device includes a processor configured to detect a respiratory disorder episode and generate kinesthetic stimulation control signals in response to the detection of a respiratory disorder episode. The device further includes at least one kinesthetic effector adapted to be applied to a patient's outer skin site and includes a vibrating electromechanical transducer capable of receiving stimulation control signals and outputting a kinesthetic stimulation energy determined by the stimulation control signals. The processor is further configured to determine the effectiveness of stimulation by detecting a cessation of the respiratory disorder episode. The processor is further configured to determine a stimulation energy by selecting an initial energy value and varying the energy value as a function of the effectiveness of previous stimulation.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: May 21, 2019
    Assignees: SORIN CRM SAS, INSERM-INSTITUT DE LA RECHERCHE MÉDICALE, UNIVERSITÉ JOSEPH FOURIER, UNIVERSITÉDE RENNES 1
    Inventors: Amel Amblard, Laurence Graindorge, Delphine Feuerstein, Alfredo Hernandez, Jean-Louis Pépin
  • Patent number: 10292897
    Abstract: A system includes a processor configured to generate stimulation control signals in response to a detection of a respiratory disorder. The system further includes at least one kinesthetic effector with a vibrating electromechanical transducer applied to a site on a patient's skin for delivering a kinesthetic stimulation energy determined by the control signals. The processor is further configured to determine the effectiveness of a stimulation by detecting a disappearance of the respiratory disorder. The processor is further configured to determine a therapy by selecting a stimulation strategy among several stimulation strategies according to a type of expected or detected disorder.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: May 21, 2019
    Assignees: SORIN CRM SAS, INSERM—INSTITUT DE LA RECHERCHE MÉDICALE, UNIVERSITÉ JOSEPH FOURIER, UNIVERSITÉ DE RENNES 1
    Inventors: Amel Amblard, Laurence Graindorge, Delphine Feuerstein, Alfredo Hernandez, Jean-Louis Pépin
  • Patent number: 10121579
    Abstract: According to one implementation a gas safety valve is provided that includes a reel onto which a coil is wound, the coil including a phase wire and a grounding wire. The reel has an elongated projection having first and second electrical contact areas onto which the phase wire and grounding wire are respectively arranged. The gas safety valve further includes an electromagnet having a core that is at least partially housed in an internal cavity of the reel. The safety gas valve also includes a support and a phase connector. The first electrical contact area is arranged such that it is inserted in the phase connector and the second electrical contact area is arranged such that it is inserted in the support, both electrical contact areas exerting an elastic force against the phase connector and the support, respectively, assuring the electrical connection between the phase wire and the phase connector, and between the grounding wire and the support, respectively.
    Type: Grant
    Filed: March 21, 2017
    Date of Patent: November 6, 2018
    Assignee: ORKLI, S. COOP.
    Inventors: Marcos Pablo Curto, Andoni Unanue Imaz
  • Patent number: 10053242
    Abstract: The disclosed subject matter relates to a reaction wheel system for controlling and stabilizing a satellite or other spacecraft. The reaction wheel system includes a reaction wheel rotor and a containment structure stator including a plurality of contactor assemblies for securing the reaction wheel rotor when not in rotation and for electromagnetically inducing substantially frictionless rotation of the reaction wheel rotor.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: August 21, 2018
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Alvin G. Yew, Matthew C. Colvin
  • Patent number: 9887487
    Abstract: A device is provided for interconnecting electronic systems having reference potentials separated by an alternating potential difference, the device includes a plurality of electrical connections that can electrically connect the electronic systems, and inductance coils arranged in series on the electrical connections, the inductance coils being electromagnetically coupled. Also provided is a method for interconnecting electronic systems.
    Type: Grant
    Filed: January 30, 2012
    Date of Patent: February 6, 2018
    Assignee: NANOTEC SOLUTION
    Inventors: Christophe Blondin, Christian Neel
  • Patent number: 9797943
    Abstract: A method of constructing an electric linear displacement motor for use in a testing device includes providing a stator having as stator housing with internal coils and a through bore extending from a first end of the stator housing to the second end of the housing. First and second end supports are connected to the first and second ends of the stator housing. An armature having magnets retained therein is inserted into the stator housing such of the armature is supported by the first end support and the second end support. A plurality of set screws are inserted into threaded openings proximate both the first end and the second end of the housing. The set screws then support and retain the armature such that there is an annular gap between the armature and the coils.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: October 24, 2017
    Assignee: MTS SYSTEMS CORPORATION
    Inventors: Tyler B Kuhlmann, Bradley Dean Schulz, Paul M. Krueger, Don Curtis Petersen
  • Patent number: 9491361
    Abstract: An actuator module which includes a Hall sensor, configured to generate output signals indicating a displacement of a mobile component by a Lorentz actuator mechanism, can be calibrated to remove corruption of the output signals due to magnetic fields generated by a coil assembly of the actuator mechanism. Such calibration can include tracking and manipulating one or more of current strength, output signal voltage strength, and mobile component displacement to establish a relationship between output signal voltage and current applied to the coil assembly. The relationship can be used to generate, for a given generated output signal voltage and applied current strength, an offset signal voltage which can be subtracted from the voltage strength of the output signal to determine a corrected output signal, independent of coil assembly corruption, which indicates a displacement of the mobile component.
    Type: Grant
    Filed: November 10, 2014
    Date of Patent: November 8, 2016
    Assignee: Apple Inc.
    Inventors: David C. Beard, Richard J. Topliss
  • Patent number: 9325230
    Abstract: A vibration generator includes a tubular magnetic case, an end cover holding a first bearing metal, a second bearing metal held in a burring portion of the bottom plate of the case, a non-magnetic movable thrust shaft that is inserted in an axially movable manner spinning the first and second bearing metal, and first to third toroidal coils connected and fixed at the inner circumference of the case. The vibration generator further includes a first annular pole piece fixed to the movable thrust shaft, a first and a second tubular permanent magnet of axial magnetization, a second annular pole piece and third annular pole piece, first and second wight body fixed at both ends of the movable thrust shaft outside the case, a first coil spring between the end cover and the first wight body, and a second coil spring between the bottom plate and the second wight body.
    Type: Grant
    Filed: April 25, 2012
    Date of Patent: April 26, 2016
    Assignee: NIDEC SEIMITSU CORPORATION
    Inventors: Yuuki Yamada, Mitsuru Oi
  • Patent number: 9284931
    Abstract: A method of pressuring fuel for a direct injection fuel system via a fuel pump in an engine is provided. The method includes, during a first mode, adjusting a magnetic solenoid valve (MSV) to control pump outlet pressure and during a second mode, deactivating the MSV and controlling pump outlet pressure via a noise-reducing valve assembly on an inlet side of the fuel pump.
    Type: Grant
    Filed: July 24, 2013
    Date of Patent: March 15, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Patrick Brostrom, Vince Paul Solferino, Paul Zeng
  • Patent number: 9270155
    Abstract: An electric linear displacement motor for use in a testing apparatus includes a stator assembly having a stator housing and a plurality of coils within the stator housing. An armature is positioned within the stator housing and includes a plurality of magnets along a length of the armature. A bearing assembly is attached to the first end of the stator housing and includes a bearing housing containing a bearing. A first end portion of the armature engages and is carried by the bearing. A brake assembly is coupled to the first end of the armature and the bearing housing. The brake assembly includes a moving portion coupled to the armature and a non-moving portion coupled to the bearing housing wherein the moving portion has less mass than the non-moving portion and therefore reduces the moving mass of the armature.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: February 23, 2016
    Assignee: MTS Systems Corporation
    Inventors: Tyler B. Kuhlmann, Bradley Dean Schulz, Paul M. Krueger
  • Publication number: 20150130298
    Abstract: The vibration power generator includes: a plurality of permanent magnets (1, 2) integrated together to have given inter-magnet gaps under a state in which the same poles of the permanent magnets are opposed to each other; and a plurality of coils (3, 4) arranged on respective outer peripheries of the plurality of permanent magnets so as to have a distance from the plurality of permanent magnets, and is configured to generate an electric power through relative movement of the plurality of permanent magnets and the plurality of coils. A relationship between a length of the opposed coils and a length of the permanent magnet is set so that the length of the coils is larger than the length of the permanent magnet and equal to or smaller than a sum of the length of the permanent magnet and a length of the inter-magnet gap.
    Type: Application
    Filed: May 2, 2012
    Publication date: May 14, 2015
    Applicant: MITSUBISHI ELECTRIC ENGINEERING COMPANY, LIMITED
    Inventors: Hiromori Nomura, Ken Onishi, Masataka Bando
  • Patent number: 8970072
    Abstract: A magnetic spring arrangement for a resonant motor including a housing, magnets fixed in position at opposing ends of the housing, a magnet positioned within the housing for movement toward and away from the fixed magnets in a reciprocal oscillating motion with a driving action produced by a stator coil and an AC drive signal, wherein an applicator member is attachable to the moving magnet for corresponding movement of a workpiece portion of the applicator member.
    Type: Grant
    Filed: November 18, 2008
    Date of Patent: March 3, 2015
    Assignee: Koninklijke Philips N.V.
    Inventor: Patrick Headstrom
  • Patent number: 8952580
    Abstract: Disclosed herein is a linear vibration motor including: a stator part; a vibrator part received in the stator part to thereby linearly vibrate; an elastic member having one end fixedly coupled to the stator part and the other end fixedly coupled to the vibrator part, wherein the vibrator part includes a printed circuit board having one end fixedly coupled to the stator part and the other end fixedly coupled to the vibrator part to thereby linearly vibrate integrally with the vibrator part.
    Type: Grant
    Filed: August 22, 2012
    Date of Patent: February 10, 2015
    Assignee: Samsung Electro-Mechanics Co., Ltd
    Inventor: Jin Hoon Kim
  • Publication number: 20150033767
    Abstract: A cryocooler is described that can include a pressure wave generator, and a refrigeration device (for example, a coldhead), which can be used to liquefy a gas when the gas is exposed to a surface of the refrigeration device. The pressure wave generator can include one or more motors. Each motor can include a stator, and at least one electrical coil wound around a portion of the stator. The electrical coil can generate a reversing magnetic field when alternating electric current is passed through the electrical coil. The motor can further include a pressurized container that can be placed within the space enclosed by the stator, and a piston that can be placed inside the pressurized container. The stators can be placed external to the pressurized container. The piston is made by combining magnets that have opposite and transverse polarities, and are combined adjacently on a common reciprocating axis.
    Type: Application
    Filed: August 1, 2014
    Publication date: February 5, 2015
    Inventors: John A. Corey, Douglas Alan Wilcox, II
  • Patent number: 8946947
    Abstract: A linear stepper motor is used for the displacement of an armature parallel to a stator having N steps. The stator includes (N+2) stator pole pieces which are enclosed by a magnetic guiding element and are each approximately the same distance from neighboring stator pole pieces. Furthermore, at least one coil is located between two stator pole pieces. The armature is enclosed by the stator in the radial direction and has a permanent magnet magnetized parallel to the stator which is disposed between two armature pole pieces. As a result of the reluctance forces, the armature occupies stable idle positions inside the stator in which the stator pole pieces lie opposite the armature pole pieces. By energizing the coils with a short current pulse, the armature can be displaced inside the stator between the different stable idle positions.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: February 3, 2015
    Assignee: Karl Storz GmbH & Co. KG
    Inventor: Martin Kelp
  • Publication number: 20150001852
    Abstract: A linear electrical machine comprising a movable piston, an axially segmented cylinder having least one magnetically permeable segment and a bore configured to allow the piston to move within the cylinder, a cylinder housing having a bore for receiving the segmented cylinder, and means for securing the segmented cylinder in place within the cylinder housing. This arrangement permits the construction of it free piston engine linear with improved piston position control, more consistent combustion and improved, electrical conversion efficiency.
    Type: Application
    Filed: January 18, 2013
    Publication date: January 1, 2015
    Inventor: Samuel Edward Cockerill
  • Publication number: 20140375149
    Abstract: A linear power generator includes a columnar or cylindrical center yoke made of a soft magnetic material and an outer yoke made of a soft magnetic material. In the center yoke, rod-shaped permanent magnets magnetized in a circumferential direction are arranged in the circumferential direction in an outer circumference of the center yoke such that opposed magnetic poles of the permanent magnets adjacent to each other become identical, the permanent magnets are extended in an axial direction, and the center yoke includes plural center-side projecting portions linearly arranged in the circumferential direction. The cylindrical or columnar outer yoke includes plural winding portions, plural groove portions, and an outer-side projecting portion. The winding portions are arranged in the circumferential direction about a center axis. The groove portions are arranged at positions opposed to the permanent magnets.
    Type: Application
    Filed: December 20, 2012
    Publication date: December 25, 2014
    Inventors: Takaitsu Kobayashi, Sanshiro Ogino
  • Publication number: 20140339928
    Abstract: An energy converter system includes a rotor and a stator configured to be relatively stationary with respect to an environment. One of the rotor and the stator includes a field coil array and braking magnets, while the other of said rotor and said stator includes a permanent magnetic array that is configured to induce an electrical current in the field coil array in response to relative motion of the rotor and the stator. Magnets in the permanent magnetic array are oriented such that like poles of the magnets are disposed adjacently to concentrate a magnetic field through the field coil array. The braking magnets are oriented such that poles of the braking magnets face like poles of the closest respective magnet in the permanent magnetic array.
    Type: Application
    Filed: July 31, 2014
    Publication date: November 20, 2014
    Inventor: Reed E. Phillips
  • Publication number: 20140312719
    Abstract: A linear generator having adjacent coils spaced apart no more than approximately 6 millimeters, and a magnet that moves through the coils. The magnet has a height that is greater than a combined height of at least two of the coils. Preferably, a pair of series-connected coils are spaced apart a distance that equals the magnet height. Current induced in the series-connected coils is in phase. The generator may have a second magnet that is oriented to repel the first magnet and that moves at a slower speed than the first magnet. An electric energy storage device is preferably coupled with the coil and a battery charger that receives energy from the storage device when it reaches a charging level. The storage device preferably receives energy from the coil through a rectifier when a voltage level in the coil is greater than a voltage level in the storage device.
    Type: Application
    Filed: April 22, 2014
    Publication date: October 23, 2014
    Applicant: GENNEO, INC.
    Inventor: BLAKE L. ISAACS
  • Patent number: 8866349
    Abstract: A solenoid includes a stationary member, a movable member being movable relative to the stationary member and spring disposed between the stationary member and the movable member. The stationary member includes a housing with an end wall and a side wall, a first permanent magnet attached to the end wall, a second permanent magnet attached to the side wall and a magnetic flux concentrator configured to concentrate a magnetic field generated by the second permanent magnet with a magnetic field generated by the first permanent magnet. The movable member includes a head inserted into the housing. The head is made of magnetically conductive material. The stationary member further includes a coil surrounding the head of the movable member. When the coil receives a pulse current, the movable member is driven from an extended/retracted position to a retracted/extended position.
    Type: Grant
    Filed: September 25, 2012
    Date of Patent: October 21, 2014
    Assignee: Johnson Electric S.A.
    Inventors: Yue Li, Jin Yun Gan, Chui You Zhou, Yong Wang, Xiao Ning Zhu
  • Publication number: 20140246866
    Abstract: A micro-motion generator or apparatus attached to an article such as an article of clothing generates an electric current to power a load device of the apparatus, for example an LED on the article of clothing in response to movements of the person wearing the article of clothing. The component parts of the apparatus are constructed with dimensions that enable the apparatus to be made a part of an object.
    Type: Application
    Filed: July 9, 2012
    Publication date: September 4, 2014
    Inventor: Scott E. Gossler
  • Patent number: 8823221
    Abstract: An apparatus and a method for optimizing a Galfenol-type magnetostriction actuator. The method and apparatus includes an elongated Galfenol-type magnetostrictive bar, first coil and a second coil, orthogonal to the first coil, with the coils arranged and activated to optimize expansion and contraction in the bar. According to the apparatus and the method, the first coil pre-aligns the magnetic moments of the bar into a desired crystallographic orientation that allows for maximum expansion or contraction when under the influence of the magnetic field of the second coil.
    Type: Grant
    Filed: September 26, 2012
    Date of Patent: September 2, 2014
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Joseph P Teter
  • Publication number: 20140241919
    Abstract: A motor for a compressor, and a reciprocating compressor having the same, are provided. A winding coil may be formed by removing a bobbin from the winding coil, and then coating an insulating material on an outer circumferential surface of the winding coil, to allow heat and moisture generated by the winding coil to be emitted to outside and provide enhanced performance and reliability. As a bobbin is removed from the winding coil, a coil line may be wound on the removed portion of the bobbin to enhance an occupation ratio by the coil line on the same area, and thus enhance efficiency of the motor. An elastic member or an adhesive may be inserted or applied into a space between the winding coil and a coil insertion groove of an inner stator to minimize vibrations of a coil line. The insulating material, which is in the form of powder, may melt while the coil line is adhered as the self-bonding material melts, forming a coating layer.
    Type: Application
    Filed: February 27, 2014
    Publication date: August 28, 2014
    Inventors: Sangsub JEONG, Jungsik Park, Hyuk Lee, Jehoon Kim
  • Patent number: 8810083
    Abstract: The invention relates to an electromagnetic drive (11), which is connected or can be connected to an open-loop control device or closed-loop control device (54) and together with the latter can form an electromagnetic drive installation. The electromagnetic drive (11) contains a hollow-cylindrical drive coil (12), in which an armature (14) can be driven in each case from one to the other of two end stations (26, 28) or back by an electromagnetic pulse of the drive coil (12). Holding means (40, 42), preferably permanent magnets, hold the armature (14) in the end station respectively reached until the electromagnetic pulse is generated once again.
    Type: Grant
    Filed: May 30, 2012
    Date of Patent: August 19, 2014
    Inventor: Gerhard Kirstein
  • Patent number: 8786143
    Abstract: A magnetically actuated reciprocating motor utilizes the stored energy of permanent magnets and an electromagnetic field to reciprocally drive a magnetic actuator. A converting mechanism converts the reciprocating motion of the magnetic actuator to rotary motion for powering a work object. A solenoid, comprising a nonferromagnetic spool having a tubular center section with a coil of wire wrapped around the center section, is connected to a source of power and a switching mechanism. The magnetic actuator has permanent magnets disposed inside a tubular shaft at each end thereof. The switching mechanism switches the magnetic polarity at the ends of the solenoid to alternatively repel and attract the permanent magnets. The shaft is reciprocatively received through the center section of the solenoid. A controlling mechanism interconnects an output shaft, rotatably powered by the magnetic actuator, and the switching mechanism to switch the polarity of the solenoid to drive the magnetic actuator.
    Type: Grant
    Filed: July 5, 2011
    Date of Patent: July 22, 2014
    Inventor: Kendall C. Gosvener
  • Publication number: 20140166914
    Abstract: The invention relates to an electromagnetic actuator with a magnet coil arranged in a housing and with an armature plate, which is movable by energization of the magnet coil in an armature plate space in the direction of a front end of the housing and which is connected to an armature plunger, which at one end is guided through the housing and protrudes into a control space; according to the invention the armature plate is formed with at least one axial pressure compensation bore so as to produce pressure compensation between the armature plate space and the control space, and the housing has at least one bearing with at least one axial groove, in which the armature plunger is mounted movably.
    Type: Application
    Filed: March 8, 2012
    Publication date: June 19, 2014
    Applicants: VOLKWAGEN AG, KENDRION (Villingen) GmbH
    Inventors: Ronald Pott, Gerhardt Ohlendorf, Stefan Solterbeck, Hergen Ruetemann, Armin Beck, Wolfram Maiwald, Gerhard Theissl, Emil Lambauerl
  • Publication number: 20140150265
    Abstract: An electromagnetic actuator includes a stator unit having N poles having the width LP, and at least one coil surrounding one of the poles, wherein N?3, and a magnetic portion, which is movable, relative to the stator unit, in a direction of relative movement and over a course of travel C, and including N+1 magnetized areas, the magnetizations of which are perpendicular to the relative movement direction and in alternate directions. The magnetic portion includes a yoke for closing off the magnetic fluxes passing through the magnetized areas, the course of travel C of the magnetic portion being less than or equal to the width LP of each pole, and the thickness of the magnetized areas perpendicular to the direction of movement being less than the course of travel C of the magnetic portion.
    Type: Application
    Filed: February 22, 2012
    Publication date: June 5, 2014
    Applicant: MOVING MAGNET TECHNOLOGIES
    Inventors: Richard Arlot, Guillaume Loussert
  • Patent number: 8729747
    Abstract: A method and apparatus for motional/vibrational energy harvesting are disclosed. Embodiments of the subject invention utilize the non-resonant chaotic behavior of a free-rolling magnet to generate power. In one embodiment, the magnet can be spherical, cylindrical, or elliptical. The magnet can roll about a linear, cylindrical, helical, or cage-like track. The changing magnetic flux due to the magnet rolling about the track induces current in surrounding coils. The coils can be provided around the track using a continuous winding placement, segmented winding placement, or fractional winding placement. Multiple coil phases are also possible. For embodiments utilizing multiple magnets, spacers can be used to maintain a separation between magnets.
    Type: Grant
    Filed: August 2, 2010
    Date of Patent: May 20, 2014
    Assignee: University of Florida Research Foundation, Inc.
    Inventors: David P. Arnold, Benjamin James Bowers
  • Patent number: 8704411
    Abstract: A spring-less buried magnet linear-resonant motor is provided. The motor includes a buried magnet system and a stator operable to produce an alternating magnetic field exerting alternating axial forces on the buried magnet system that has a self-centering force and a required stiffness to reciprocate at a frequency near an alternating current (AC) supply frequency.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: April 22, 2014
    Assignee: King Abdulaziz City for Science and Technology
    Inventor: Zaid Al Otaibi
  • Patent number: 8692397
    Abstract: A mechanism for the conversion of vertical motion to translational or rotational motion includes a substrate, at least one permanent magnet, at least one coil of wire, at least one inelastic material, at least one elastic material, and at least one pivot point. The coil of wire is a solenoid.
    Type: Grant
    Filed: December 26, 2012
    Date of Patent: April 8, 2014
    Assignee: The United States of America as Represented by the Secretary of the Navy
    Inventors: William W. Lai, Alfred J. Baca, M. Joseph Roberts, Lawrence C. Baldwin, Michael T. Owens
  • Patent number: 8692396
    Abstract: A hybrid system for harvesting magnetic and electrical energy includes a substrate, at least one permanent magnet, and at least one coil of wire equal in number to the permanent magnet. Each permanent magnet is configured to fit in the substrate. Each coil of wire is configured to fit circumferentially around a respective permanent magnet. Each coil of wire is configured to fit in the substrate.
    Type: Grant
    Filed: June 13, 2012
    Date of Patent: April 8, 2014
    Assignee: The United States of America as Represented by the Secretary of the Navy
    Inventors: William W. Lai, Alfred J. Baca, M. Joseph Roberts, Lawrence C. Baldwin, Michael T. Owens
  • Patent number: 8680698
    Abstract: A self-contained mechanism for the conversion of vertical motion to rotational/transitional motion includes a substrate having at least one interior compartment, at least one nonconductive tube, at least one permanent magnet, and at least one coil of wire. The coil of wire is a solenoid. The nonconductive tube, permanent magnet, and solenoid are configured to fit in the interior compartment.
    Type: Grant
    Filed: December 26, 2012
    Date of Patent: March 25, 2014
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: William W. Lai, Alfred J. Baca
  • Patent number: 8682396
    Abstract: Disclosed is a vibration module for a portable terminal that includes a housing, a magnetic moving part movable in a first direction within the housing; an elastic member supported between the opposite ends of the magnetic moving part and inner walls of the housing, and a solenoid coil provided in the housing. The vibration module is positioned at one end of the moving section by the magnetic force of the magnetic moving part and an object around the magnetic moving part, allowing the vibration module to provide a user with a feeling similar to a click feeling via the acceleration produced at a stopping instant. In addition, when vibrating, the vibration module generates sufficient vibration power through acceleration at the instant of changing moving direction at the ends of the moving section, to provide an alarm function, such as an incoming call notification.
    Type: Grant
    Filed: October 24, 2011
    Date of Patent: March 25, 2014
    Assignees: Samsung Electronics Co., Ltd, Korea Advanced Institute of Science and Technology
    Inventors: Tae-Heon Yang, Yu-Dong Bae, Dong-Soo Kwon, Young-Min Lee, Eun-Hwa Lee, Jeong-Seok Lee, Dong-Bum Pyo, Young-Jun Cho
  • Patent number: 8680724
    Abstract: A linear generator has a fluid pressure cylinder structure for reciprocating a piston in a cylinder in the axial direction by applying alternately a fluid pressure in a left fluid pressure chamber in contact with the left end wall of the cylinder and a fluid pressure in a right fluid pressure chamber in contact with the right end wall of the cylinder to the piston. A permanent magnet band is formed between the left and right pressure receiving surfaces of the piston, and an electromotive coil band provided over the left and right fluid pressure chambers is formed on the cylindrical wall between the left and right end walls of the cylinder so that power generation in the electromotive coil band is induced by the reciprocating movement in the axial direction of the piston having the permanent magnet band.
    Type: Grant
    Filed: November 28, 2012
    Date of Patent: March 25, 2014
    Inventor: Takaitsu Kobayashi
  • Publication number: 20140035397
    Abstract: A first weight portion of a vibration actuator includes an inner-side enlarged portion that protrudes from an end portion of a solid head in a direction of a vibration axis and that is inserted into an opening portion extending within a first compression coil spring along the direction of the vibration axis. An outer peripheral surface of the inner-side enlarged portion becomes continuously smaller in diameter from a base end towards a free end, with the vibration axis being the center of the diameter. That is, the inner-side enlarged portion has the shape of a truncated cone. The inner-side enlarged portion is inserted into the opening portion of the first compression coil spring and the opening portion is utilized to change the length of the inner-side enlarged portion in the direction of the vibration axis, thereby changing the mass of the first weight portion.
    Type: Application
    Filed: July 30, 2013
    Publication date: February 6, 2014
    Applicant: NIDEC COPAL CORPORATION
    Inventors: Masaya ENDO, Yoshihide TONOGAI
  • Patent number: 8618702
    Abstract: A vibration energy generator includes a case, a coil, a permanent magnet, and a shield magnet. The case is elongated in one direction and is made from a nonmagnetic material. The coil surrounds around an outer surface of the case. The permanent magnet reciprocates inside the case along the one direction. The permanent magnet is magnetized with a polarity oriented in the one direction. The shield magnet is disposed in one end portion of the permanent magnet in the one direction. Each of a surface of the one end portion and a surface of the shield magnet facing the surface of the one end portion has the same magnetic polarity. The length of the shield magnet in the one direction is less than the length of the permanent magnet in the one direction.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: December 31, 2013
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Ryuta Iijima
  • Publication number: 20130342037
    Abstract: A vibration-powered generator (100) has a vibrating element (10) and a coil (40) arranged therearound, and is configured to obtain electromotive force by moving the vibrating element (10) relatively to the coil (40). The vibrating element (10) has a plurality of magnets (20a to 20d) arranged so as to oppose the pole-faces of the same polarity; end supporting portions (12, 13) which support the plurality of magnets from both ends in the direction of arrangement; and a cushioning (16). The cushioning (16) is held between the end supporting portion (12) and the magnet (20c), while being compressed under a stress exceeding the repelling force between the pole-faces of the magnets, so as to keep the magnets (20a to 20d) in a row without leaving a gap in between, overcoming the repelling force.
    Type: Application
    Filed: March 21, 2012
    Publication date: December 26, 2013
    Applicant: SUMIDA CORPORATION
    Inventors: Mitsugu Kawarai, Takayuki Yamaguchi, Ryuta Iljima, Ryoya Takahashi, Keisuke Nishihara
  • Patent number: 8613603
    Abstract: An armature for a solenoid actuator is disclosed. The armature comprises a first face comprising a recess suitable for receiving a biasing spring in use of the armature; a second face opposite the first face; and fluid communication passages for providing a fluid flow path through the armature between the recess and the second face in use of the armature. The first face is uninterrupted by the fluid communication passages. The invention reduces the risk of cavitation damage during operation of the actuator. In one application, the actuator is used in a fluid pump for a selective catalytic reduction system.
    Type: Grant
    Filed: October 21, 2010
    Date of Patent: December 24, 2013
    Assignee: Delphi International Operations Luxembourg, S.A.R.L.
    Inventor: Michael Peter Cooke