Hinged Core Patents (Class 336/176)
  • Patent number: 8952680
    Abstract: A magnetic sensor includes two sensor units with curved cores including meshing portions at front and base ends thereof and constructs a ring when the meshing portions mesh together. The meshing portions include main meshing portions that entirely overlap in a completely meshed state where the meshing portions overlap to the greatest extent. Auxiliary meshing portions that protrude inside and/or outside the ring are provided on the main meshing portions at the front and/or the base ends. In the completely meshed state, the auxiliary meshing portions do not overlap the main meshing portions or auxiliary meshing portions of the other core. In a non-completely meshed state where the main meshing portions partially do not overlap, the auxiliary meshing portions at least partially overlap the main meshing portions and/or auxiliary meshing portions of the other core.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: February 10, 2015
    Assignee: Hioki Denki Kabushiki Kaisha
    Inventors: Akihiro Nagai, Yoshinori Furuhata, Satoshi Imaizumi
  • Patent number: 8826516
    Abstract: A method for applying at least one magnet, a holding device for such a method, and an arrangement comprising a number of holding devices. The method is used for applying at least one magnet to a surface of a part made of a magnetic material. The at least one magnet is moved towards the surface of the part while being retained in the holding device using a retaining force, and a force of attraction that acts against the retaining force is substantially directed towards the part and is applied to the at least one magnet such that the magnet is transferred to the surface of the part as soon as the magnet has been moved towards the surface of the part so as to be at a certain distance therefrom at which the force of attraction exceeds the retaining force.
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: September 9, 2014
    Assignee: Thyssenkrupp Elevator AG
    Inventors: Stefan Bopple, Thomas Hannusch
  • Patent number: 8766757
    Abstract: The invention relates to a device for detachably fastening a current conductor (10) to a current transformer housing (12) comprising a fastening element (16, 32), wherein the fastening element (16, 32) can be guided such that the fastening element (16, 32) at least partially contacts the surface of the current conductor (10) in a fastening state of the current conductor (10) on the current transformer housing (12). The invention is characterized in that the fastening element (16, 32) is implemented such that it performs a translatory displacement in the direction of the current conductor (10) when transitioning from an unfastened state to the fastened state of the current conductor (10) to the current transformer housing (12).
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: July 1, 2014
    Assignee: Phoenix Contact GmbH & Co. KG.
    Inventors: Christoph Leifer, Carsten Thörner, Dat-Minh Trinh
  • Publication number: 20140097924
    Abstract: A current measuring transducer for measuring the current flowing through an electrical cable, with a ring probe, a sensor and an evaluation device for recording the current value obtained by the ring probe and the sensor, wherein the ring probe has an annular core, wherein the ring probe is divided into a basic ring section and at least one movable ring section, wherein the movable ring section defines an open and a closed state, wherein in the open state, a radial cable insert opening is opened, and wherein a circularly closed arrangement is created in the closed state of the movable ring section in which the annular core surrounds the cable, wherein the radial insertion of a cable extending axially relative to the current measuring transducer into the inside area of the ring probe transfers the ring section from one to the other state, and measurement of the current in the cable inserted into the inside area is made possible in the closed state.
    Type: Application
    Filed: April 24, 2012
    Publication date: April 10, 2014
    Applicant: PHOENIX CONTACT GMBH & CO KG
    Inventors: Carsten Thorner, Christoph Leifer
  • Patent number: 8692540
    Abstract: The size of a status indicator for monitoring a current in a power cable is reduced by integrating a bobbin for the secondary winding with a current transformer core and integrating a circuit board including output terminals with a current transformer assembly.
    Type: Grant
    Filed: August 13, 2008
    Date of Patent: April 8, 2014
    Assignee: Veris Industries, LLC
    Inventor: James Bernklau
  • Patent number: 8572838
    Abstract: Embodiments of a high temperature electromagnetic coil assembly are provided, as are embodiments of a method for fabricating such a high temperature electromagnetic coil assembly. In one embodiment, the method includes the steps of applying a high thermal expansion ceramic coating over an anodized aluminum wire, coiling the coated anodized aluminum wire around a support structure, and curing the high thermal expansion ceramic coating after coiling to produce an electrically insulative, high thermal expansion ceramic body in which the coiled anodized aluminum wire is embedded.
    Type: Grant
    Filed: March 2, 2011
    Date of Patent: November 5, 2013
    Assignee: Honeywell International Inc.
    Inventors: James Piascik, Eric Passman, Reza Oboodi, Robert Franconi, Richard Fox, Gary J. Seminara, Gene Holden, Jacob Harding
  • Patent number: 8549732
    Abstract: A surgical navigation system for navigating a region of a patient includes a non-invasive dynamic reference frame and/or fiducial marker, sensor tipped instruments, and isolator circuits. The dynamic reference frame may be repeatably placed on the patient in a precise location for guiding the instruments. The instruments may be precisely guided by positioning sensors near moveable portions of the instruments. Electrical sources may be electrically isolated from the patient.
    Type: Grant
    Filed: July 1, 2011
    Date of Patent: October 8, 2013
    Assignee: Medtronic Navigation, Inc.
    Inventors: Bruce M. Burg, John H. Dukesherer, Bradley A. Jascob, Paul Kessman
  • Patent number: 8453318
    Abstract: A method of making a planar coil is disclosed in the present invention. First, a substrate having a trench is provided. Then, a barrier and a seed layer are formed on the substrate in sequence. An isolative layer is used for guiding a conductive material to flow into a lower portion of the trench such that accumulation of the conductive material at opening of the trench is prevented before the lower portion of the trench is completely filled up, thereby avoiding gap formation in the trench.
    Type: Grant
    Filed: October 15, 2012
    Date of Patent: June 4, 2013
    Assignee: Touch Micro-System Technology Corp.
    Inventors: Hung Yi Lin, Ming Fa Chen
  • Patent number: 8359730
    Abstract: A surgical navigation system for navigating a region of a patient includes a non-invasive dynamic reference frame and/or fiducial marker, sensor tipped instruments, and isolator circuits. The dynamic reference frame may be repeatably placed on the patient in a precise location for guiding the instruments. The instruments may be precisely guided by positioning sensors near moveable portions of the instruments. Electrical sources may be electrically isolated from the patient.
    Type: Grant
    Filed: July 1, 2011
    Date of Patent: January 29, 2013
    Assignee: Medtronic Navigation, Inc.
    Inventors: Bruce M. Burg, John H. Dukesherer, Bradley A. Jascob, Paul Kessman
  • Patent number: 8302285
    Abstract: In a sensing unit according to the present invention, a spring portion having a support portion and a movable portion is conductive. A signal of a sensor portion provided on the movable portion of the spring portion is transmitted via the spring portion. Hence, the sensing unit according to the present invention has a simple constitution with a small number of components, and a wire does not necessarily have to be provided for each sensor portion. As a result, a reduction in manufacturing cost, simplification of the manufacturing process, and so on are achieved.
    Type: Grant
    Filed: March 4, 2010
    Date of Patent: November 6, 2012
    Assignees: Headway Technologies, Inc., SAE Magnetics (H.K.) Ltd.
    Inventors: Yoshitaka Sasaki, Tatsushi Shimizu, Takehiro Horinaka, Kazuo Ishizaki, Shigeki Tanemura
  • Patent number: 8230577
    Abstract: In a sensing unit according to the present invention, a spring portion having a support portion and a movable portion is conductive. A signal of a sensor portion provided on the movable portion of the spring portion is transmitted via the spring portion. Hence, the sensing unit according to the present invention has a simple constitution with a small number of components, and a wire does not necessarily have to be provided for each sensor portion. As a result, a reduction in manufacturing cost, simplification of the manufacturing process, and so on are achieved.
    Type: Grant
    Filed: March 4, 2010
    Date of Patent: July 31, 2012
    Assignees: Headway Technologies, Inc., SAE Magnetics (H.K.) Ltd.
    Inventors: Yoshitaka Sasaki, Tatsushi Shimizu, Takehiro Horinaka, Kazuo Ishizaki, Shigeki Tanemura
  • Patent number: 8209850
    Abstract: In a method for manufacturing pencil cores a continuous strip of electrical steel is provided. The continuous strip is cut to create a plurality of starting strips as laminations each having a length longer than a desired length of the pencil cores and at least one of the strips having a strip width at least equal to or larger than a desired diameter of a cross-section of the pencil cores. The starting strips are provided with a bonding layer. The starting strips are stacked and then heated and cured to create a bonded stack. The bonded stack is machined to a substantially circular cross-section. Without a de-burring or de-smearing operation after the machining, the machined bonded stack is cut to create a plurality of pencil cores of the desired length. The pencil cores created by the method are substantially round, and have no welds at end faces.
    Type: Grant
    Filed: March 25, 2010
    Date of Patent: July 3, 2012
    Assignee: Tempel Steel Company
    Inventor: Mark Bender
  • Patent number: 8203328
    Abstract: A current sensor is provided for non-invasively measuring electrical current in an electrical conductor. The current sensor includes a housing having a Hall effect device and circuitry for transmitting a signal indicative of the current flowing through the electrical conductor. The current sensor includes a base having a surface for supporting an electrical conductor. A magnetic shielding member is coupled to the surface to shield the Hall effect device from stray or external magnetic fields. A compliant member is coupled to the magnetic shielding member opposite the surface. The compliant member compresses to allow the current sensor to accommodate a large variety of electrical conductor sizes. The compliant member further acts to bias the electrical conductor against the Hall effect device.
    Type: Grant
    Filed: March 12, 2009
    Date of Patent: June 19, 2012
    Assignees: Consolidated Edison Company of New York, Inc., Softstuf, Inc.
    Inventors: Sanjay Bose, Anthony T. Giuliante, Amir Makki
  • Patent number: 8191240
    Abstract: A method for winding a lead wire on a multi-winding electronic component is provided. The method can prevent winding slack of the lead wire, a break of the lead wire, and/or a terminal disconnection failure. A lead wire is wound around a winding core by a certain number of turns to form at least one first layer. Next, the lead wire is folded back toward an electrode, is pulled toward the electrode at an end-of-winding side so as to be across the second layer. Then, the lead wire is caught at a bottom part of the collar to form a final terminal part for boding to the electrode.
    Type: Grant
    Filed: May 4, 2011
    Date of Patent: June 5, 2012
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Yoshimitsu Ishido, Ryo Watanabe
  • Patent number: 8193803
    Abstract: A current sensor is provided for non-invasively measuring electrical current in an electrical conductor. The current sensor includes a housing having a Hall effect device and circuitry for transmitting a signal indicative of the current flowing through the electrical conductor. The current sensor includes a base having a surface for supporting an electrical conductor. A magnetic shielding member is coupled to the surface to shield the Hall effect device from stray or external magnetic fields. A compliant member is coupled to the magnetic shielding member opposite the surface. The compliant member compresses to allow the current sensor to accommodate a large variety of electrical conductor sizes. The compliant member further acts to bias the electrical conductor against the Hall effect device.
    Type: Grant
    Filed: March 23, 2009
    Date of Patent: June 5, 2012
    Assignees: Consolidated Edison Company of New York, Inc., Softstuf, Inc.
    Inventors: Sanjay Bose, Anthony T. Giuliante, Amir Makki, John Walsh, Douglas Voda, Timothy Franklin
  • Publication number: 20120038446
    Abstract: An apparatus is provided for securing to and collecting power from an electrical conductor including a wire clamp that clamps and secures to an electrical conductor, a current transformer (“CT”) that clamps to the electrical conductor and collects power from the electrical conductor, and a housing that supports the wire clamp and the current transformer. According to various aspects, the apparatus may include a wire clamp including a compression post and clamp arms that surround and compress an electrical conductor in a closed position of the wire clamp, where each of the clamp arms includes pivot posts, and the clamp arms pivot between closed and open positions. According to other various aspects, the apparatus may include a split magnetic core that surrounds an electrical conductor in a closed position of the current transformer, where the split magnetic core includes pivot posts, and the split magnetic core pivots between closed and open positions.
    Type: Application
    Filed: August 9, 2011
    Publication date: February 16, 2012
    Inventors: Bruce W. McBee, Gregg James Haensgen, John Fredrick Banting, William J. Kostolni, Bryan C. Cochran
  • Patent number: 7971341
    Abstract: A surgical navigation system for navigating a region of a patient includes a non-invasive dynamic reference frame and/or fiducial marker, sensor tipped instruments, and isolator circuits. The dynamic reference frame may be repeatably placed on the patient in a precise location for guiding the instruments. The instruments may be precisely guided by positioning sensors near moveable portions of the instruments. Electrical sources may be electrically isolated from the patient.
    Type: Grant
    Filed: March 25, 2008
    Date of Patent: July 5, 2011
    Assignee: Medtronic Navigation, Inc.
    Inventors: John H. Dukesherer, Bruce M. Burg, Bradley A. Jascob, Paul Kessman
  • Patent number: 7864012
    Abstract: There is provided an inductive coupler for coupling a signal to a conductor. The inductive coupler includes (a) a magnetic core having an aperture through which the conductor is routed, (b) a winding wound around a portion of the magnetic core, where the signal is coupled between the winding and the conductor via the magnetic core, and (c) a member that maintains an electrical connection between the magnetic core and the conductor.
    Type: Grant
    Filed: May 19, 2006
    Date of Patent: January 4, 2011
    Assignee: Ambient Corporation
    Inventors: Erik Steck Merck, Yehuda Cern
  • Patent number: 7859379
    Abstract: It is possible to provide a transformer core which can be mounted on a coil having both ends connected to a substrate or the like and can simplify the step for arranging an adhesive layer and suppress fluctuation of a magnetic gap. The transformer core (1) includes: a rectangular spacer (5, 20) having a region where a first convex portion (10, 21) is formed on the four sides of one of the surfaces as a unitary block and the first convex portion is not provided at least at a part of a pair of two opposing sides; and a sheet-shaped adhesive layer (6) bonded to a region where at least the first convex portion is not provided on the one of the surfaces of the spacer and connecting a soft ferrite core (4) to the spacer.
    Type: Grant
    Filed: May 16, 2007
    Date of Patent: December 28, 2010
    Assignee: Hitachi Metals, Ltd.
    Inventor: Masayasu Uemura
  • Patent number: 7752737
    Abstract: In a method for manufacturing a powder magnetic core, magnetic layer green sheets is formed by using magnetic metal particles having an insulating oxide layer on a surface thereof, and insulating layer green sheets are formed by using insulating particles. The magnetic layer green sheet and the insulating layer green sheet are alternately laminated, and the layers are press molded.
    Type: Grant
    Filed: May 8, 2008
    Date of Patent: July 13, 2010
    Assignee: Fuji Electric Device Technology Co., Ltd.
    Inventors: Masaharu Edo, Takayuki Hirose, Akira Sato
  • Patent number: 7743482
    Abstract: A semiconductor device and fabricating method thereof are provided. A first substrate with an inductor cell and a through-electrode is connected to a second substrate having an RF device circuit unit. The first substrate can be stacked on the second substrate, and a connecting electrode can electrically connect the inductor cell to the RF device circuit unit.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: June 29, 2010
    Assignee: Dongbu Hitek Co., Ltd.
    Inventor: Jae Won Han
  • Patent number: 7694407
    Abstract: A miniature surface-mount electronic component which can ensure sufficient impact resistance and vibration resistance especially in an application to a severe use environment such as a vehicle-mounted coil, by putting some contrivance into a method for fixing a coil in a molding process and a method for holding a core and terminals. A miniature surface-mount electronic component including a bar-shaped core 2 on which a winding wire 3 is wound, and metal plates 5, with an outer casing 7 made of an insulating resin molded, includes flanges 2b substantially quadrangular in section at both ends of the bar-shaped core 2, and vertical grooves a and b are provided on side surfaces of the flanges 2b of the bar-shaped core 2 as fixing portions for preventing positional displacement occurring when the outer casing 7 is molded.
    Type: Grant
    Filed: July 21, 2008
    Date of Patent: April 13, 2010
    Assignee: Toko Inc.
    Inventors: Masayoshi Yagi, Shingo Shimizu, Shin Murakami
  • Patent number: 7669312
    Abstract: A differential circuit layout can advantageously use step symmetry for inductors and mirror symmetry for the rest of the circuit. Interconnect segments can be used to connect the terminals of the inductors to other components in the circuit. These interconnect segments facilitate the transition from the step symmetry of the inductors to the mirror symmetry of the other components. To provide this transition, the terminals of an inductor and its associated interconnect segments are formed on a middle axis of the inductor. This mixed symmetry can advantageously cancel the common-mode magnetic field, reduce the parasitic inductor coupling, and balance parasitic wiring capacitances between the two sides of the differential circuit.
    Type: Grant
    Filed: June 15, 2007
    Date of Patent: March 2, 2010
    Assignee: Atheros Communications, Inc.
    Inventor: Manolis Terrovitis
  • Patent number: 7663459
    Abstract: A short-circuit indicator is provided for arrangement on an electrical line for electrical power distribution which includes a current transformer. The current transformer has an induction coil and an iron yoke for surrounding the electrical line to be monitored for a short-circuit current. The induction coil is seated on a base web of a U-shaped first yoke part. A second yoke part is connected in the form of a joint which can move between a closed position and an open position to one of two U-limbs of the first yoke part. The second yoke part forms a magnetic return path element for the first yoke part in the closed position. The first yoke part is split into two essentially L-shaped parts in the area of the base web to which the induction coil is fitted.
    Type: Grant
    Filed: June 23, 2008
    Date of Patent: February 16, 2010
    Assignee: Dipl.-Ing. H. Horstmann GmbH
    Inventor: Hendrik Horstmann
  • Patent number: 7571533
    Abstract: A method of manufacturing a micro flux gate sensor and a micro flux gate sensor manufactured according to the method are provided. The method includes operations of forming a lower coil portion of an excitation coil and a magnetic field detecting coil on a wafer, forming connection portions with a certain height at predetermined positions of the lower coil portion, forming a first insulation layer to cover the lower coil portion and the connection portions, forming a magnetic core on the first insulation layer, forming a second insulation layer to cover the magnetic core and forming an upper coil portion electrically connected to the connection portions to form the excitation coil and the magnetic field detecting coil, and forming a third insulation layer to cover the upper coil portion.
    Type: Grant
    Filed: April 21, 2006
    Date of Patent: August 11, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyoung-won Na, Jingli Yuan
  • Patent number: 7536779
    Abstract: A magnetic core portion 16, a residual base material portion 42, and a connecting portion 43 are formed by pressing from a base material 40. Notches 18A are formed at a peripheral edge of the magnetic core portion 16, which is bent in the direction of the plate thickness to form a temporary fixing portion 18. When base materials 40 are overlapped to cut the magnetic core portions 16 from the connecting portion 43, the magnetic core portions 16 are pressed in directions toward one another so that the temporary fixing portion 18 is filled between notches 18A in the other magnetic core portion 16, to fix temporarily the other magnetic core portions 16. Since the magnetic core portions 16 are temporarily and simultaneously fixed by pressing in a cutting step normally carried out, the magnetic core portions can be temporarily fixed with ease.
    Type: Grant
    Filed: January 13, 2005
    Date of Patent: May 26, 2009
    Assignee: Seiko Epson Corporation
    Inventors: Tatsuo Hara, Toshiaki Yanagisawa, Hiroyuki Kojima, Eiichi Nagasaka, Kenichi Michibata, Yoshiaki Oguchi
  • Publication number: 20090115403
    Abstract: The size of a status indicator for monitoring a current in a power cable is reduced by integrating a bobbin for the secondary winding with a current transformer core and integrating a circuit board including output terminals with a current transformer assembly.
    Type: Application
    Filed: August 13, 2008
    Publication date: May 7, 2009
    Inventor: James Bernklau
  • Patent number: 7513031
    Abstract: A method for making an embedded toroidal inductor (118) includes forming in a ceramic substrate (100) a first plurality of conductive vias (102) radially spaced a first distance from a central axis (101) so as to define an inner circumference. A second plurality of conductive vias (104) is formed radially spaced a second distance about the central axis so as to define an outer circumference. A first plurality of conductive traces (110) forming an electrical connection between substantially adjacent ones of the first and second plurality of conductive vias is formed on a first surface (106) of the ceramic substrate. Further, a second plurality of conductive traces (110) forming an electrical connection between circumferentially offset ones of the first and second plurality of conductive vias is formed on a second surface of the ceramic substrate opposed from the first surface to define a three dimensional toroidal coil.
    Type: Grant
    Filed: June 1, 2005
    Date of Patent: April 7, 2009
    Assignee: Harris Corporation
    Inventors: Michael D. Pleskach, Andrew J. Thomson
  • Patent number: 7492245
    Abstract: An inductive coupler provides an interface between a power line and a communication device which communicates via the power line. The power line operates at a potential between four and 140 kilovolts while accommodating a current having a frequency between 45 and 65 hertz, and the communication device operates substantially at ground potential. The inductive coupler includes a split ferrite core having material selected to provide a substantially flat frequency response between one and 50 megahertz. The coupler also includes a clamping mechanism allowing the inductive coupler to clamp around the power line or around a utility line connected to the power line. Further, the coupler includes at least one lead for communicatively connecting the inductive coupler to the communication device. The inductive coupler forms an air gap when the inductive coupler is clamped. If the coupler is insulated, the insulation is also used for the air gap.
    Type: Grant
    Filed: January 31, 2006
    Date of Patent: February 17, 2009
    Assignee: Amperion, Inc.
    Inventors: Bruce A. Renz, David Long, Todd W. Sandahl
  • Patent number: 7389576
    Abstract: A method of manufacturing a micro flux gate sensor that has a good electrical connection and can be easily manufactured includes operations of forming a metal pattern, forming a first insulation layer to cover the metal pattern and forming viaholes to expose a certain portion of the metal pattern, applying an electrical signal through the metal pattern and plating the viaholes with a metal material to form a connection portion, forming a magnetic core on an upper portion of the first insulation layer, forming a second insulation layer to cover the magnetic core and forming an upper coil portion electrically connected to the connection portion to form the excitation coil and the magnetic field detecting coil, forming a third insulation layer to cover the upper coil portion, and removing a certain portion of the metal pattern to leave only the lower coil portion of the metal pattern.
    Type: Grant
    Filed: April 14, 2006
    Date of Patent: June 24, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyoung-won Na, Jingli Yuan
  • Patent number: 7380328
    Abstract: The invention includes a stacked open pattern inductor fabricated above a semiconductor substrate. The stacked open pattern inductor includes a plurality of parallel open conducting patterns embedded in a magnetic oxide or in an insulator and a magnetic material. Embedding the stacked open pattern inductor in a magnetic oxide or in an insulator and a magnetic material increases the inductance of the inductor and allows the magnetic flux to be confined to the area of the inductor. A layer of magnetic material may be located above the inductor and below the inductor to confine electronic noise generated in the stacked open pattern inductor to the area occupied by the inductor. The stacked open pattern inductor may be fabricated using conventional integrated circuit manufacturing processes, and the inductor may be used in connection with computer systems.
    Type: Grant
    Filed: November 25, 2003
    Date of Patent: June 3, 2008
    Assignee: Micron Technology, Inc.
    Inventors: Kie Y. Ahn, Leonard Forbes
  • Patent number: 7367113
    Abstract: A substrate is provided and a top interconnection metal layer and a primary winding layer are formed thereon. Then a passivation layer having a plurality of via exposed parts of the top interconnection metal layer is formed on the substrate. A secondary winding layer and at least a bonding pad are formed on the passivation layer. The bonding pad electrically connects to the top interconnection metal layer through the via.
    Type: Grant
    Filed: April 6, 2006
    Date of Patent: May 6, 2008
    Assignee: United Microelectronics Corp.
    Inventors: Cheng-Chou Hung, Hua-Chou Tseng, Victor-Chiang Liang, Yu-Chia Chen, Tsun-Lai Hsu
  • Patent number: 7360294
    Abstract: A method of assembling an inductive proximity sensor maintains inductive coil wound bobbins in fixed relation to an inductive core within a housing. The method includes configuring two inductive coil wound bobbins with an integral ledge cantilevered from an inside surface thereof for forming a pocket under the integral ledge at a bottom of each bobbin; disposing each inductive coil wound bobbin around a corresponding leg of the inductive core; containing a foot of each core leg into the pocket of the corresponding bobbin; inserting each of two legs of a thruster element into a corresponding bobbin so that each leg rests upon the ledge of the corresponding bobbin; disposing the inductive core, inductive coil wound bobbins, and thruster element into the housing; disposing a spring element on a top surface of the thruster element; and compressing the spring element against the top surface of the thruster element.
    Type: Grant
    Filed: January 5, 2007
    Date of Patent: April 22, 2008
    Assignee: Simmonds Precision Products, Inc.
    Inventors: Robert D. LaClair, David Henry Crowne, Christopher Spagnoletti, Eric Carter
  • Patent number: 7234229
    Abstract: The present invention provides a process and an apparatus for the preparation of a motor coil by which a longitudinally wound motor coil, so called, can be easily prepared. First, a molded product 10 comprising a column part 11, and a fin part 12 projected in the form of flat plate from an outer peripheral surface 11A, 11B, 11C, 11D of the column part to an outer side in a radial direction of the column part and helically continuing in an axis direction of the column part at predetermined intervals along the outer peripheral surface of column part is prepared. The column part 11 of the first molded product is punched out in an axis direction of the column part with retaining the fin part 12 to remove the column part, and the fin part 12 having helical shape left after the removal is coated with an insulating film.
    Type: Grant
    Filed: April 2, 2004
    Date of Patent: June 26, 2007
    Assignee: Fuji Jukogyo Kabushiki Kaisha
    Inventors: Jiro Maruyama, Motoyuki Fujiwara, Nobuyuki Mabuchi, Koji Etoh
  • Patent number: 7168150
    Abstract: A method of making a resonant frequency tag which resonates at a predetermined frequency. The method involves providing a first conductive pattern having an inductive element and a first land and a second conductive pattern having a second land and a third land which are joined together by a link. The second conductive pattern is overlaid the first conductive pattern such that the second land is positioned over the first land. The third land is in electrical communication with the inductive element of the first conductive pattern. The formed resonant frequency tag is energized to determine if the tag resonates at the predetermined frequency. If the tag resonates properly, the third land is electrically coupled to the inductive element. If it does not, the second conductive pattern is adjusted so that overlapping portions of the first and second lands are changed, altering the capacitance to adjust the resonant tag frequency.
    Type: Grant
    Filed: October 19, 2004
    Date of Patent: January 30, 2007
    Assignee: Checkpoint Systems, Inc.
    Inventors: Eric Eckstein, Gary Mazoki, Peter Lendering, Luis Francisco Soler Bonnin, Takeshi Matsumoto, Lawrence Appalucci
  • Patent number: 7158003
    Abstract: There is provided an inductive coupler for coupling a data signal to a phase line of a power line. The inductive coupler includes a split magnetic core having an aperture formed by an upper magnetic core and a lower magnetic core. The aperture permits the phase line to pass therethrough as a primary winding, the upper magnetic core is for making electrical contact with an outer surface of the phase line, and the lower magnetic core makes electrical contact with the upper magnetic core.
    Type: Grant
    Filed: May 2, 2003
    Date of Patent: January 2, 2007
    Assignee: Ambient Corporation
    Inventors: Yehuda Cern, Ramdas S. Rao
  • Patent number: 7120993
    Abstract: On a surface of a glass cloth adhered a mica layer sheet, a mixture of inorganic particles having a thermal conductivity of at least 5 W/mK, a resin, and a solvent is applied to form a layer of the mixture of the inorganic particles, the resin, and the solvent; the layer of the mixture is reduced in thickness using a doctor blade, followed by pressurizing to form a high thermally conducting layer; the mica layer sheet on which the high thermally conducting layer is disposed is cut to obtain a mica insulating tape; and the mica insulation tape is wound around a coil conductor. As a result, an insulated coil that is excellent in the voltage endurance characteristics and has a high thermal conductivity is manufactured.
    Type: Grant
    Filed: June 8, 2004
    Date of Patent: October 17, 2006
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Shigeyuki Yamamoto, Wataru Bito, Toshio Isooka, Koichi Goshima
  • Patent number: 7102478
    Abstract: The coupling device of the present invention includes a housing, a first fastening member attached to said housing and coupled to the power line, a second fastening member attached to the housing and coupled to the power line, an inductor providing an impedance to data transmissions between the first fastening member and the second fastening member; a first conductor having a first end electrically coupled to the first fastening member; and a second conductor having a first end electrically coupled to the second fastening member. The second ends of the first conductor and second conductor providing data signals to a connector. In addition, the housing may include a transformer secured therein for coupling power transmissions to the connector.
    Type: Grant
    Filed: June 21, 2002
    Date of Patent: September 5, 2006
    Assignee: Current Technologies, LLC
    Inventors: Charles Franklin Pridmore, Jr., Joseph C. Roesch, James D. Mollenkopf, Brett Gidge, Steven R. Baker
  • Patent number: 7076858
    Abstract: A method of making a resonant frequency tag having a predetermined frequency comprises forming a first conductive pattern comprising an inductive element and a first land having a first end connected to an inductive element end, and a second end spaced a predetermined distance from the first end; separately forming a second conductive pattern comprising a second land having a predetermined width and a link element; placing the second conductive pattern proximate the first conductive pattern at a first location wherein the second land overlies a portion of the first land with a dielectric therebetween establishing capacitive element plates having a first capacitance along with the inductive element forming a resonant circuit; measuring the resonant circuit frequency and comparing the measured and predetermined frequencies moving the second land along of the first land length to match the resonant frequency; and securing the second conductive pattern to the first conductive pattern.
    Type: Grant
    Filed: October 19, 2004
    Date of Patent: July 18, 2006
    Assignee: Checkpoint Systems, Inc.
    Inventors: Eric Eckstein, Gary Mazoki, Peter Lendering, Luis Francisco Soler Bonnin, Takeshi Matsumoto, Lawrence Appalucci
  • Patent number: 6990725
    Abstract: This invention relates to the fabrication of planar inductive components whereby the design in cross-section describes a conductor surrounded by magnetic material along the length of the conductor; an electrical insulator is placed between the conductor and the magnetic material. Cases also apply where more than one independent conductor is used. The planar form allows integration of inductive components with integrated circuits. These inductive components can be embedded in other materials. They can also be fabricated directly onto parts.
    Type: Grant
    Filed: October 4, 2002
    Date of Patent: January 31, 2006
    Inventors: Mark D. Fontanella, Paul Greiff, Donato Cardarelli, Joseph G. Walsh
  • Patent number: 6990729
    Abstract: A method for making an embedded toroidal inductor (118) includes forming in a ceramic substrate (100) a first plurality of conductive vias (102) radially spaced a first distance from a central axis (101) so as to define an inner circumference. A second plurality of conductive vias (104) is formed radially spaced a second distance about the central axis so as to define an outer circumference. A first plurality of conductive traces (110) forming an electrical connection between substantially adjacent ones of the first and second plurality of conductive vias is formed on a first surface (106) of the ceramic substrate. Further, a second plurality of conductive traces (110) forming an electrical connection between circumferentially offset ones of the first and second plurality of conductive vias is formed on a second surface of the ceramic substrate opposed from the first surface to define a three dimensional toroidal coil.
    Type: Grant
    Filed: September 5, 2003
    Date of Patent: January 31, 2006
    Assignee: Harris Corporation
    Inventors: Michael D. Pleskach, Andrew J. Thomson
  • Patent number: 6925701
    Abstract: A method of making a resonant frequency tag which resonates at a predetermined frequency. The method involves providing a first conductive pattern having an inductive element and a first land and a second conductive pattern having a second land and a third land which are joined together by a link. The second conductive pattern is overlaid the first conductive pattern such that the second land is positioned over the first land. The third land is in electrical communication with the inductive element of the first conductive pattern. The formed resonant frequency tag is energized to determine if the tag resonates at the predetermined frequency. If the tag resonates properly, the third land is electrically coupled to the inductive element. If it does not, the second conductive pattern is adjusted so that overlapping portions of the first and second lands are changed, altering the capacitance to adjust the resonant tag frequency.
    Type: Grant
    Filed: March 13, 2003
    Date of Patent: August 9, 2005
    Assignee: Checkpoint Systems, Inc.
    Inventors: Eric Eckstein, Gary Mazoki, Peter Lendering, Luis Francisco Soler Bonnin, Takeshi Matsumoto, Lawrence Appalucci
  • Patent number: 6903642
    Abstract: A transformer includes at least two magnetically coupled cores with a common axis. The cores have cross sectional configurations transverse to the common axis which are not rectangular. An exciting voltage is to be applied across a first winding provided on one of the cores. A second winding provided on one of the cores includes first and second terminals across which a voltage is to be induced in response to the exciting voltage. A first device provides a relatively higher impedance between the first and second terminals of the second winding. The first device is coupled between the first and second terminals. Third, fourth and fifth windings have respective first and second terminals. The third and fourth windings are wound on one of the cores with a first polarity. The fifth winding is wound on one of the cores with a second polarity opposite to the first polarity.
    Type: Grant
    Filed: December 3, 2002
    Date of Patent: June 7, 2005
    Assignee: Radian Research, Inc.
    Inventors: Glenn A. Mayfield, Shannon Edwards
  • Patent number: 6794769
    Abstract: A current mode coupler includes a unitary casing, a stub cable connector, a circuit board, a magnetic structure, a wire core holder, an enclosing lid and an E-core situated in a cavity in the unitary casing and an I-core affixed to the enclosing lid. When the enclosing lid is in a closed position, the E-core and the I-core contact, forming a transformer. When electrical current is present in a data bus that is situated within the E-core/I-core arrangement, the coupler magnetically couples the current mode doublets on the data bus to the circuitry enclosed in the unitary casing. The current mode doublets sensed on the data bus is then converted to voltage mode doublets and transmitted to the stub interface. The current mode coupler also receives voltage mode doublets through the stub interface, converts the voltage mode doublets to current mode doublets, and transmits the current mode doublets via the E-core/I-core arrangement.
    Type: Grant
    Filed: April 19, 2002
    Date of Patent: September 21, 2004
    Assignee: Sanmina-SCI Corporation
    Inventor: Ricky C. Black
  • Patent number: 6683522
    Abstract: The planarization of inductive components by reducing standard coiled designs to single turn, open ended designs from which the required parameters are obtained by scaling the length. Single turn designs having magnetic material encircling the conductors along their full length enable the thinnest form. The single turn, open ended form also enables the inductive component to be routed according to any shape in the plane or on any conformal surface. The single turn inductors do not need to coil hence there is no overlap necessary in the plane. The planar form allows integration of inductive components with integrated circuits. These inductive components can be embedded in other materials. They can also be fabricated directly onto parts.
    Type: Grant
    Filed: May 21, 2001
    Date of Patent: January 27, 2004
    Assignee: Milli Sensor Systems & Actuators, Inc.
    Inventor: Joseph G. Walsh
  • Patent number: 6566994
    Abstract: An improved formable coil for an AC sensor having a predetermined length and a predetermined number of turns. The coil is wound in multiple passes in opposite directions, with a predetermined number of passes in each direction to fill in any gaps and provide a stable helical-wound coil. A preferred embodiment is wound on a collapsible mandrel to facilitate free removal of the coil from the mandrel.
    Type: Grant
    Filed: March 17, 1997
    Date of Patent: May 20, 2003
    Assignee: Fluke Corporation
    Inventor: Charles R. Jensen
  • Patent number: 6559748
    Abstract: An electric noise absorber for clamping to a cord of an electronic device comprises a holding case composed of two box-shaped case members. Each case member contains a magnet having a hemi-cylindrical groove at the upper part of the magnet for receiving the cord. It is possible to easily and securely attach and detach the electric noise absorbing magnet to the cord by simply closing and opening the case members.
    Type: Grant
    Filed: March 24, 1994
    Date of Patent: May 6, 2003
    Assignee: Kitigawa Industries Co., Ltd.
    Inventor: Yoshihito Nakano
  • Patent number: 6469589
    Abstract: A noise filter is provided with a cylindrical ferrite core having a wire insertion through-hole, the ferrite core being received within a case. A wire passing once through the wire insertion through-hole is looped to surround an exterior of the case and passes back through the wire insertion through-hole. A wire fixing portion is provided on the outer surface of the case so as to hold and fix a portion of the wire to the exterior of the case. The wire fixing portion includes a pressing surface and a pressing portion that faces the pressing surface, and the pressing portion is opened from and closed toward the pressing surface. Thus, the noise filter is prevented from displacement or sliding on the wire. Further, a method of mounting the noise filter on the wire is provided.
    Type: Grant
    Filed: November 29, 2000
    Date of Patent: October 22, 2002
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventor: Yasuto Takeda
  • Patent number: 6469594
    Abstract: A device and a method for its use to attenuate electromagnetic noise, such as that caused in power supply line current by back-emf from devices being powered, in order to provide cleaner, or more regular alternating current and voltage waveforms. A permanently magnetized magnet is held close to a conductor cable for an alternating current, in a case, which may also hold a permeable material extending from the magnet and at least partly surrounding the cable. Multiple magnets may be included, arranged parallel with each other and with like poles adjacent or facing each other, forming a tubular arrangement about the cable.
    Type: Grant
    Filed: January 4, 2000
    Date of Patent: October 22, 2002
    Assignee: Audio Prism, Inc.
    Inventor: Victor M. Ticarano
  • Patent number: 6414579
    Abstract: A current transformer for a ground fault circuit breaker used on a circuit having at least one line conductor and a neutral conductor includes a toroidal core having a circular opening defining a center point and a multi-turn winding wound on the core. A first guide member is disposed on one side of the core, and a second guide member is disposed on another side of the core. The first and second guide members each have a hole for receiving the line conductor and a hole for receiving the neutral conductor formed therein. The guide members thus position the conductors with respect to the core. Also included is a method of correcting asymmetries in the current transformer. The method includes measuring the magnitude and orientation of any asymmetries, and then altering the current transformer based on the measured magnitude and orientation of the asymmetries so as to eliminate the asymmetries.
    Type: Grant
    Filed: December 6, 1999
    Date of Patent: July 2, 2002
    Assignee: General Electric Company
    Inventors: Jerome Johnson Tiemann, Richard Dudley Baertsch