Angularly And Linearly Movable Coils Patents (Class 336/121)
  • Patent number: 9859755
    Abstract: This disclosure provides systems, methods and apparatus for wireless power transfer and particularly wireless power transfer to remote systems such as electric vehicles. In one aspect, a wireless power receiver includes a first inductive element, a power supply, and a communication receiver. The first inductive element is configured to receive wireless power from a first electromagnetic field generated by a wireless power transmitter including a second inductive element. The power supply is configured to supply a current to the first inductive element to generate a second electromagnetic field and induce a current in the second inductive element. The communication receiver is configured to receive an indication of a distance between the first inductive element and the second inductive element based on the induced current in the second inductive element.
    Type: Grant
    Filed: February 19, 2013
    Date of Patent: January 2, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Jonathan Beaver, Nicholas A. Keeling, Michael Kissin, Edward L. van Boheemen
  • Patent number: 8963669
    Abstract: Power swivel for transmitting electrical power from a first terminal to a second terminal, includes a central part with a huh and an outer ring of a magnetic material, coaxial with and surrounding the hub, the outer ring and central part being rotatable relative to one another around a vertical axis, at least two radial arms of a magnetic material projecting from the hub or from the outer ring, adjacent arms being spaced-apart, each arm carrying a conductor wound around the arm to form a coil for generating a magnetic flux along a radial flux path through the arm, the conductors being connected to the first terminal, wherein the outer ring or the hub has a cylindrical surface at close proximity to free ends of the arms, a plurality of axially extending conductors being distributed along the circumference of the outer ring or hub at or near the cylindrical surface.
    Type: Grant
    Filed: July 24, 2014
    Date of Patent: February 24, 2015
    Assignee: Single Buoy Moorings Inc.
    Inventor: Mauro Bedini
  • Patent number: 8854168
    Abstract: Power swivel for transmitting electrical power from a first terminal to a second terminal, includes a central part with a hub and an outer ring of a magnetic material, coaxial with and surrounding the hub, the outer ring and central part being rotatable relative to one another around a vertical axis, at least two radial arms of a magnetic material projecting from the hub or from the outer ring, adjacent arms being spaced-apart, each arm carrying a conductor wound around the arm to form a coil for generating a magnetic flux along a radial flux path through the arm, the conductors being connected to the first terminal, wherein the outer ring or the hub has a cylindrical surface at close proximity to free ends of the arms, a plurality of axially extending conductors being distributed along the circumference of the outer ring or hub at or near the cylindrical surface.
    Type: Grant
    Filed: July 2, 2010
    Date of Patent: October 7, 2014
    Assignee: Single Buoy Moorings Inc.
    Inventor: Mauro Bedini
  • Patent number: 8704407
    Abstract: Disclosed herein is a wireless power supplying rack, including: a power transmission device adapted to transmit power to be supplied; a repeater device adapted to repeat the transmission power of the power transmission device; a power reception device adapted to receive the power repeated by the repeater device; and a main body in which a load to which the power received at least by the power reception device from between the power reception device and the repeater device is supplied is disposed; at least the repeater device and the power reception device from among the power transmission device, repeater device and power reception device being incorporated in the main body; wherein the power transmission device, the repeater device and the reception device have a first resonance element, a second resonance element and a third resonance element, respectively.
    Type: Grant
    Filed: January 7, 2011
    Date of Patent: April 22, 2014
    Assignee: Sony Corporation
    Inventor: Osamu Kozakai
  • Publication number: 20130271073
    Abstract: Techniques are disclosed involving coils that may be used to exchange wireless energy between devices. For instance, a device may include a coil having a plurality of turns arranged along an arc. Further, the coil may have first and second ends that are substantially normal to the arc. The coil may be arranged within a casing of the device. This casing may have first and second non-parallel surfaces. In embodiments, the first end of the coil may be directed to (be substantially parallel with and proximate to) the first surface, while the second end of the coil may be directed to the substantially parallel with and proximate to) the second surface. The coil may be employed in wireless power transfer and/or near field communication applications.
    Type: Application
    Filed: September 15, 2011
    Publication date: October 17, 2013
    Applicant: INTEL CORPORATION
    Inventors: Songnan Yang, Ulun Karacaoglu, Emily B. Cooper, Bin Xiao
  • Patent number: 8350655
    Abstract: Axisymmetric solid of revolution derivable from section at FIG. 5 is generally toroidal with electric current(s) in windings 110, 160 preferably flowing circumferentially along major circle(s) during power coupling device operation. Current(s) in windings 110, 160; current(s) in half-shields 120, 170; and the volume of space swept out by shield airgap(s) 101 emerge from plane of paper perpendicularly at FIG. 5 but as these emerge therefrom they curve to follow toroidal major circle(s). Cores 115, 165 preferably shunt and align magnetic flux such that magnetic field lines escape therefrom primarily only in region(s) of core airgap(s) and such that magnetic flux loops lie in planes of toroidal minor circle(s).
    Type: Grant
    Filed: January 29, 2007
    Date of Patent: January 8, 2013
    Assignee: Analogic Corporation
    Inventor: John M. Dobbs
  • Patent number: 8350653
    Abstract: The present invention relates to a connector system that provides the transfer of electrical power and/or data communications signals between two systems. The connector has no conductive electrical connection and can operate independently of angular orientation.
    Type: Grant
    Filed: February 6, 2009
    Date of Patent: January 8, 2013
    Assignee: WFS Technologies Ltd.
    Inventors: Mark Rhodes, Brendan Hyland, Alexander Ballantyne
  • Patent number: 8262244
    Abstract: Furniture components, such as office furniture components, that are configured to include electronic components that transfer electrical power to peripheral electronic devices via wireless technologies, including conductive and inductive technologies. The articles of furniture may include grommet devices received within work surfaces, the grommet devices incorporating or housing the electronics of wireless power systems. The articles of furniture may also include the electronics of wireless power systems physically embedded or integrated within work surfaces in a manner in which the continuous surfaces of the work surfaces are maintained, and the work surfaces may optionally further include lighting or other indication features to indicate the locations of the electronics to a user.
    Type: Grant
    Filed: October 6, 2011
    Date of Patent: September 11, 2012
    Assignee: Kimball International, Inc.
    Inventors: Keith E. Metcalf, Terry Carroll, Jay M. Henriott, Samial Keith Johnson, Donald Woods
  • Patent number: 8138875
    Abstract: An inductive power supply system for providing power to one or more inductively powered devices. The system includes a mechanism for varying the physical distance or the respective orientation between the primary coil and secondary coil to control the amount of power supplied to the inductively powered device. In another aspect, the present invention is directed to an inductive power supply system having a primary coil and a receptacle disposed within the magnetic field generated by the primary coil. One or more inductively powered devices are placed randomly within the receptacle to receive power inductively from the primary coil. The power supply circuit includes circuitry for adjusting the power supplied to the primary coil to optimize operation based on the position and cumulative characteristics of the inductively powered device(s) disposed within the receptacle.
    Type: Grant
    Filed: November 5, 2009
    Date of Patent: March 20, 2012
    Assignee: Access Business Group International LLC
    Inventors: David W. Baarman, Stephen J. McPhilliamy, Christopher Houghton
  • Patent number: 7750507
    Abstract: An electronics support apparatus for rotating electronics is provided that eliminates the need for electrical contact brushes and/or reduces the number of inductive power coupling coil pairs required to provide power to the rotating electronics. With the apparatus, a single inductive power coupling coil pair is utilized in which the coils are oriented at approximately 90 degrees, i.e. at a right angle, to each other, e.g., the “outer” coil (secondary transformer coil) is oriented approximately 90 degrees to the “inner” coil (primary transformer coil). A transformer core, or “elbow core,” having an approximately 90 degree bend is provided for coupling the magnetic energy of the primary transformer coil with the secondary transformer coil, thus imparting or coupling energy simultaneously through 2 axes of motion.
    Type: Grant
    Filed: June 28, 2007
    Date of Patent: July 6, 2010
    Assignee: International Business Machines Corporation
    Inventor: Randall R. Heisch
  • Patent number: 7710235
    Abstract: Novel applications of nanocoil technology and novel methods of fabricating nanocoils for use in such applications and others. Such applications include inductors or traveling wave tubes fabricated from spiral nanocoils. Such applications includes inductors or traveling wave tubes fabricated from a method for fabricating nanocoils with a desired pitch. Such a method includes determining a desired pitch for fabricated nanocoil, selecting coiling arm orientation in which coiling arm orientation is arm angle between coiling arm an crystalline orientation of underlying substrate, whereby coiling arm orientation affects pitch of fabricated nanocoil, patterning coiling arm structure with selected coiling arm orientation, and, releasing coiling arm, whereby fabricated nanocoil is formed.
    Type: Grant
    Filed: September 21, 2006
    Date of Patent: May 4, 2010
    Assignee: Northrop Grumman Systems Corporation
    Inventors: Garrett A. Storaska, Robert S. Howell
  • Patent number: 7639110
    Abstract: An inductive power supply system for providing power to one or more inductively powered devices. The system includes a mechanism for varying the physical distance or the respective orientation between the primary coil and secondary coil to control the amount of power supplied to the inductively powered device. In another aspect, the present invention is directed to an inductive power supply system having a primary coil and a receptacle disposed within the magnetic field generated by the primary coil. One or more inductively powered devices are placed randomly within the receptacle to receive power inductively from the primary coil. The power supply circuit includes circuitry for adjusting the power supplied to the primary coil to optimize operation based on the position and cumulative characteristics of the inductively powered device(s) disposed within the receptacle.
    Type: Grant
    Filed: August 29, 2006
    Date of Patent: December 29, 2009
    Assignee: Access Business Group International LLC
    Inventors: David W. Baarman, Stephen J. McPhilliamy, Christopher Houghton
  • Patent number: 7233222
    Abstract: An inductive power supply system for providing power to one or more inductively powered devices. The system includes a mechanism for varying the physical distance or the respective orientation between the primary coil and secondary coil to control the amount of power supplied to the inductively powered device. In another aspect, the present invention is directed to an inductive power supply system having a primary coil and a receptacle disposed within the magnetic field generated by the primary coil. One or more inductively powered devices are placed randomly within the receptacle to receive power inductively from the primary coil. The power supply circuit includes circuitry for adjusting the power supplied to the primary coil to optimize operation based on the position and cumulative characteristics of the inductively powered device(s) disposed within the receptacle.
    Type: Grant
    Filed: January 14, 2005
    Date of Patent: June 19, 2007
    Assignee: Access Business Group International LLC
    Inventors: David W. Baarman, Stephen J. McPhilliamy, Christopher Houghton
  • Patent number: 7126450
    Abstract: An inductive power supply system for providing power to one or more inductively powered devices. The system includes a mechanism for varying the physical distance or the respective orientation between the primary coil and secondary coil to control the amount of power supplied to the inductively powered device. In another aspect, the present invention is directed to an inductive power supply system having a primary coil and a receptacle disposed within the magnetic field generated by the primary coil. One or more inductively powered devices are placed randomly within the receptacle to receive power inductively from the primary coil. The power supply circuit includes circuitry for adjusting the power supplied to the primary coil to optimize operation based on the position and cumulative characteristics of the inductively powered device(s) disposed within the receptacle.
    Type: Grant
    Filed: February 4, 2003
    Date of Patent: October 24, 2006
    Assignee: Access Business Group International LLC
    Inventors: David W. Baarman, Stephen J. McPhilliamy, Christopher Houghton
  • Patent number: 6831542
    Abstract: A micro-electro mechanical (MEM) switch capable of inductively coupling and decoupling electrical signals is described. The inductive MEM switch consists of a first plurality of coils on a movable platform and a second plurality of coils on a stationary platform or substrate, the coils on the movable platform being above or below those in the stationary substrate. Coupling and decoupling occurs by rotating or by laterally displacing the coils of the movable platform with respect to the coils on the stationary substrate. Diverse arrangements of coils respectively on the movable and stationary substrates allow for a multi-pole and multi-position switching configurations. The MEM switches described eliminate problems of stiction, arcing and welding of the switch contacts. The MEMS switches of the invention can be fabricated using standard CMOS techniques.
    Type: Grant
    Filed: February 26, 2003
    Date of Patent: December 14, 2004
    Assignee: International Business Machines Corporation
    Inventors: Richard P. Volant, John E. Florkey, Robert A. Groves
  • Publication number: 20040061583
    Abstract: A linear actuator includes a first yoke part, a second yoke part opposing the first yoke part from a direction perpendicular to the axial direction thereof, an intermediate yoke part forming a first gap and a second gap, a coil disposed within a space delineated by the intermediate yoke part and the second yoke part, which forms a magnetic field between the first yoke part and the intermediate yoke part. The orientation this magnetic field is opposite between the first gap and the second gap, and orientation thereof alternates. The actuator further includes a magnet at one axial-direction end relative to the coil, which generates a fixed magnetic field in the two gaps, directed either from the intermediate yoke part toward the first yoke part or from the first yoke part toward the intermediate yoke part, and an armature disposed that is movable in the axial direction in the first gap and the second gap.
    Type: Application
    Filed: July 14, 2003
    Publication date: April 1, 2004
    Applicant: SANKYO SEIKI MFG. CO., LTD.
    Inventor: Yukinobu Yumita
  • Patent number: 6512437
    Abstract: An isolation transformer is provided having primary and secondary cores (2, 4) and primary and secondary coils (3, 5) with the primary coil and the secondary coil being disposed with a gap G provided therebetween. Each of the primary coil and the secondary coil is formed of a wire having at least two substantially parallel long sides, and a length of the two long sides in each of the wires is set to be longer than a distance between the two long sides in each of the wires. Each of the wires is wound to have a plurality of turns in a manner such that an outer one of the two long sides of each inner one of the turns is adjacent to an inner one of the two long sides of each respective adjacent outer one of the turns.
    Type: Grant
    Filed: March 2, 1999
    Date of Patent: January 28, 2003
    Assignee: The Furukawa Electric Co., Ltd.
    Inventors: Dongzhi Jin, Fumihiko Abe, Hajime Mochizuki
  • Patent number: 4754180
    Abstract: A transformer for coupling electrical power from a stationary location to a moving location with a minimum of disturbance forces between the stationary and moveable components. The transformer is particularly adapted to coupling power to a magnetically suspended platform. The transformer includes an enclosed core housing two windings, a stationary primary coil, and a secondary coil free to move linearly and angularly over a limited displacement, where the secondary coil is affixed to the moveable platform, thereby enabling energy to be extracted for powering apparatus mounted within the platform.
    Type: Grant
    Filed: October 7, 1986
    Date of Patent: June 28, 1988
    Assignee: Honeywell Inc.
    Inventor: James A. Kiedrowski
  • Patent number: 4455555
    Abstract: An inductive displacement transducer includes a primary and at least two secondary coils with a movable coupling member for varying the amount of mutual coupling therebetween as a function of the displacement of a movable member. The secondary coils are wrapped around magnetic cores which are embedded in a disc-shaped core structure. The coupling member comprises a pair of magnetic conductive arms disposed on either side of the core structure and attached to a shaft rotatably received by a central axial bore in the core structure. An end of the shaft may be attached to the movable member. A control circuit excites the primary coil with an excitation signal with abrupt repetitive transients so that voltage spikes appear in the secondary coils with an amplitude related to the amount of mutual coupling. The voltage spikes are integrated into a D. C. voltage with an amplitude of the voltage spikes and thus, indicative of the displacement of the movable member.
    Type: Grant
    Filed: October 6, 1980
    Date of Patent: June 19, 1984
    Assignee: Deere & Company
    Inventors: Dean H. Symonds, David E. Brandon
  • Patent number: 4223300
    Abstract: An electromechanical positioner indicator is provided which comprises first and second relatively movable parts, the first part including two oppositely facing surfaces which are everywhere equidistant and the second part including two surfaces which are everywhere equidistant and which are everywhere equispaced from and lie, closely adjacent to respective ones of the two surfaces of the first part. A first coil, preferably in printed circuit form, is secured to the first part and sensing coils, also preferably in printed circuit form, are secured to each of the two surfaces of the second part. The inductive coupling between the coils is dependent on the relative positions of the parts and thus the output of the sensing coils provides an indication of position. In one embodiment, the surfaces in question are formed by cylinders and in another, the first part is a disc and the main coil comprises an annulus. Particular coil and coil conductor shapes are also disclosed.
    Type: Grant
    Filed: February 16, 1978
    Date of Patent: September 16, 1980
    Assignee: AGA Aktiebolag
    Inventor: Klas R. Wiklund