Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 7389576 | Method of manufacturing micro flux gate sensor 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 certa... | 06/24/2008 |
| 7380328 | Method of forming an inductor 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. Em... | 06/03/2008 |
| 7367113 | Method for fabricating a transformer integrated with a semiconductor structure 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 laye... | 05/06/2008 |
| 7360294 | Method of assembling an inductive proximity sensor 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 s... | 04/22/2008 |
| 7312686 | Split core sensing transformer Separable toroidal segments reduce the size of a sensing transformer that can be installed on an electrical conductor while connected to a device. ... | 12/25/2007 |
| 7234229 | Method and apparatus for manufacturing motor coil 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 | 06/26/2007 |
| 7204464 | Medical wire holder A device can easily and releasably secure a medical wire such as a guidewire or a filter wire. In some instances, such a device can include a wire holding device that may be considered to be disposable. A wire holding device may include a base fixture, a clamp fixtu... | 04/17/2007 |
| 7168150 | Method of making a resonant frequency tag 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 whic... | 01/30/2007 |
| 7158003 | Construction of medium voltage power line data couplers 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... | 01/02/2007 |
| 7120993 | Method of manufacturing insulated coil 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 ... | 10/17/2006 |
| 7102478 | Power line coupling device and method of using the same 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 d... | 09/05/2006 |
| 7076858 | Method for controlling resonant tag frequency 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 predetermin... | 07/18/2006 |
| 6990729 | Method for forming an inductor 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 circumfer... | 01/31/2006 |
| 6990725 | Fabrication approaches for the formation of planar inductors and transformers 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 magn... | 01/31/2006 |
| 6925701 | Method of making a series of resonant frequency tags 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 whic... | 08/09/2005 |
| 6903642 | Transformers 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 t... | 06/07/2005 |
| 6794769 | Current mode coupler having a unitary casing 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 enclos... | 09/21/2004 |
| 6683522 | Planar miniature inductors and transformers 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 ... | 01/27/2004 |
| 6566994 | Coil for an AC current sensor 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 prov... | 05/20/2003 |
| 6559748 | Electric noise absorber 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 t... | 05/06/2003 |
| 6469589 | Noise filter with an outer wire fixing portion on the core case 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 p... | 10/22/2002 |
| 6469594 | Attenuation of electromagnetic noise including a permanent magnet 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 perman... | 10/22/2002 |
| 6414579 | Current transformer and method for correcting asymmetries therein 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 ... | 07/02/2002 |
| 6400248 | Device for absorbing electric noise A device for absorbing the electric noise on a cable contains a casing formed from two halves, in each of whose halves can be fixed a ferrite element. The two ferrite elements enclose the cable with the casing closed. A locking device keeps the two casing... | 06/04/2002 |
| 6268787 | Ferrite-core housing case anti-noise component wire harness and electronic equipment A ferrite-core housing case 20 has a first split case half 21, and a second split case half 22 that is openable with respect to the first split case half 22, and houses a ferrite core 1 for a flat cable. A pair of spring portions 27 which press the ferrit... | 07/31/2001 |
| 6262361 | Device for absorbing electrical noise A device for absorbing electrical noise in a cable contains two ferrite cores, each of which is housed in a casing half-shell. The two casing half-shells are placed with the ferrite cores around a cable such that a cylindrical passage is formed. The casin... | 07/17/2001 |
| 6242993 | Apparatus for use in arcing fault detection systems An apparatus for use in arcing fault detection systems within circuit breakers and which is adapted for automated production by top-down assembly. In one embodiment, the apparatus includes a circuit board and a two-piece sensing coil within a two piece ho... | 06/05/2001 |
| 6211764 | Waterproof current transformer A waterproof current transformer for supplying current to electrical cable monitoring devices includes a core assembly for attaching a remote circuit module to a monitored conductor and provides a concentrated magnetic flux indicative of the current level... | 04/03/2001 |
| 6160466 | Electric noise absorber An electric noise absorber provided with first, second and third magnetic body parts in first, second and third housing sections, respectively. Grooves are provided to form a first hollow in which an electric wire is placed between the first and second ma... | 12/12/2000 |
| 6144277 | Electric noise absorber An electric noise absorber comprising at least two ferrite pieces having abutting planes, at least two case members containing the ferrite pieces respectively and being closed by means of engagement members, and a spring member provided in at least one of... | 11/07/2000 |
| 6078241 | Noise absorber A noise absorber capable of preventing a cable from becoming damaged with a high degree of reliability while demonstrating outstanding noise absorbing characteristics is provided with a cover 1 and a pair of ferrites 21 and 22. The cover 1 is constituted ... | 06/20/2000 |
| 6060972 | Method and means for replacing an electrically conducting cable by another electrically conducting cable Method for replacing a first cable (1) by a second cable (2) between a first predetermined point (1a) and a second predetermined point (1b). The cable comprising, the provision of first series impedance means (S1) close to the first end (2a) and second se... | 05/09/2000 |
| 5994979 | Magnetic core noise filter with an integrally formed outer sheath and inner insulator A noise filter has a magnetic core having a pair of magnetic core members each with a coupling surface. Each of the magnetic core members has a dented portion so arranged that, when the magnetic core members are closed together on the coupling surfaces, a... | 11/30/1999 |
| 5990674 | Clamping mechanism for mounting circuit condition monitoring devices on cables of various diameters A clamping mechanism for mounting a circuit condition monitoring device to electrical cables of various diameters includes a core member comprising a plurality of laminations arranged in a generally rectangular configuration. A spring spanning the core me... | 11/23/1999 |
| 5977854 | Electromagnetic noise absorber An electromagnetic noise absorber has a pair of ferrite cores arranged with open ends of the ferrite cores facing each other. Each of the ferrite cores includes an axial portion, an outer cylindrical portion and a bottom portion and is constructed by coup... | 11/02/1999 |
| 5942964 | Noise absorbing apparatus A noise absorbing apparatus includes a pair of ferrite members and a pair of covers. The ferrite members are located to oppose each other in tight contact with each other to clamp a cable therebetween. The covers cover the ferrite members. The covers form... | 08/24/1999 |
| 5920250 | Noise absorber A noise absorber capable of preventing a cable from becoming damaged with a high degree of reliability while demonstrating outstanding noise absorbing characteristics is provided with a cover 1 and a pair of ferrites 21 and 22. The cover 1 is constituted ... | 07/06/1999 |
| 5900796 | Electric noise suppressor An electric noise suppressor is provided for suppressing high-frequency electric noise which comprises a thermoplastic housing and two ferrite members disposed therein. The thermoplastic housing is formed from two hingedly connected case halves, which are... | 05/04/1999 |
| 5896027 | Current ratio device for use in forming a current transformer A current ratio device for use in forming a hand-held openable-core clamp-on type of current transformer. The device employs electronically-aided three-stage circuitry for forming a current transformer capable of accurate low current measurements over a w... | 04/20/1999 |
| 5821845 | Electromagnetic noise absorber Proposed is a reduction of variance in electromagnetic noise eliminating effect with signal conductors arranged in a flat cable to which an electromagnetic noise absorber is attached. The electromagnetic noise absorber is provided with a plate magnetic bo... | 10/13/1998 |
