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| Number | Title | Issue Date |
| 8207812 | System for isolating a medium voltage A signal isolating transformer may be arranged such that a first coil of the signal isolating transformer is located in a medium voltage compartment and a second coil of the signal isolating transformer is located external to the medium voltage compartment. The tran... | 06/26/2012 |
| 7982575 | Insulating member An ignition coil, which includes a primary coil and a secondary coil, has an electrical insulating member. The electrical insulating member includes an insulating material being a base material. The electrical insulating member further includes a reactive agent bein... | 07/19/2011 |
| 7973634 | Electronic component and method for fixing the same Disclosed is an electronic component, especially a coil with a coil core, in which the turns of the coil winding are spaced apart from each other at least at one point in the longitudinal direction of the coil. A plastic retaining element which overlaps both the coi... | 07/05/2011 |
| 7663464 | Inductance component The inductance component has a base material, a coil formed in the base material and an electrode electrically connected to the coil. In addition, an impact-absorption layer is disposed between the electrode and the base material. Forming impact-absorption layer bet... | 02/16/2010 |
| 7477126 | Winding for a transformer or a coil and method for the production thereof The invention relates to a winding for a transformer or a coil. Said winding is made of a winding material comprising a strip-type electric conductor which is connected in a detachable manner to at least one wide side having at least one layer of insulating material... | 01/13/2009 |
| 7356911 | Method for producing an insulated wire A method for producing an insulated wire having a cross section of a desired shape, in which a conductor having a cross section of a desired shape is coated with an insulating film, which method comprises: supplying a raw conductor while passing through a rolling un... | 04/15/2008 |
| 7294941 | Winding coil assembly of reciprocating motor and manufacturing method thereof A winding coil assembly (6) of a reciprocating motor comprising: an outer stator; an inner stator (2) arranged at an inner circumference surface of the outer stator (2) with a certain air gap; a magnet linearly and movably arranged between the o... | 11/13/2007 |
| 7289012 | Electromagnetic coil assembly An electromagnetic coil assembly is provided. The electromagnetic coil assembly includes a bobbin, a coil of magnet wire and a cover piece. The bobbin includes a hub, a first flange and a second flange. The hub has a longitudinal axis. The first and second flanges a... | 10/30/2007 |
| 7280025 | Magnetic element The magnetic element includes a core (20) provided with a through hole (21) passing through a tubular portion, a linear conductor (30) having a plated surface, which is to be inserted through the through hole (21), and a mounting terminal... | 10/09/2007 |
| 7187260 | Electromagnetic device with cover for prevention of damage to conductor of electromagnetic device A stepping motor according to the present invention used in a case containing oil includes a motor having a coil formed with a conductor wound around a bobbin and a cover member enclosing the coil, and a housing which houses the motor. The cover member serves to pro... | 03/06/2007 |
| 7145116 | Induction heating coil An induction heating coil having little high-frequency loss and producing little hast is easily manufactured by covering a conductor with a first insulating material to form a wire, then bundling and twisting such wires to form a stranded wire, covering the outer su... | 12/05/2006 |
| 7118803 | String-like sealing material A string-like sealing material characterized in that (1) the string-like sealing material is a string-like body (a) obtained by forming a thermosetting resin composition comprising a synthetic resin and a heat-curing agent or a string-like composite structure (b) ob... | 10/10/2006 |
| 7108247 | Method and apparatus for lifting and/or conveying The invention relates to a method of operation of and apparatus for a lifting and/or conveying device (1), such as a crane, that comprises at least one cable (2) capable of being rolled (wound) onto or off a dispenser roll (3). To lengthen the s... | 09/19/2006 |
| 7064644 | Winding for a transformer or a coil and method for winding A winding for a transformer or a coil having a ribbon electrical conductor and an insulating material layer composed of ribbon insulation material wound jointly to form turns around a winding core. The individual turns of the winding have a predetermined winding ang... | 06/20/2006 |
| 7061362 | Coils for electrical machines A jig (10) is used to form a coil (50) for an electrical machine. A plurality of conductive wires (56), each covered in a heat-curable electrically insulated material, are wound around a bobbin (12). Each succeeding winding in contra-woun... | 06/13/2006 |
| 7023317 | Cellular transformers The winding of matrix transformers having multiple turn primary windings is made much easier, and the resulting transformer is much more consistent, if a “cellular” insert having a plurality of through holes is placed through each trough hole of the matrix trans... | 04/04/2006 |
| 7023312 | Integrated cooling duct for resin-encapsulated distribution transformer coils A dry-type, resin-encapsulated transformer coil that includes multiple layers formed from a length of conductive material, and multiple cooling ducts that are formed of thermoplastic material and spaced between the layers of conductive material. The thermoplastic ma... | 04/04/2006 |
| 6995646 | Transformer with voltage regulating means A power or regulating transformer with voltage regulator includes regulating windings made of a flexible conductor having an electric field containing mechanism that forces the electric field due to the current in the winding to be contained within the flexible cond... | 02/07/2006 |
| 6975198 | Inductive coil assembly An inductive coil assembly having multiple coils arranged at distinct orientations to provide efficient inductive coupling of power or communications or both to a device when the device is arranged at different orientations with respect to the inductive primary coil... | 12/13/2005 |
| 6970063 | Power transformer/inductor The present invention relates to a power transformer/inductor comprising at least one winding. The windings are designed by means of a high-voltage cable, comprising an electric conductor, and around the conductor there is arranged a first semiconducting layer, arou... | 11/29/2005 |
| 6954129 | Wire core inductive devices having a flux coupling structure and methods of making the same An inductive device (10) comprises a magnetic core (16) including a portion of a plurality of wires (18), an electric winding (20) extending around said magnetic core, with one or more of the plurality of wires (18) at least partia... | 10/11/2005 |
| 6943466 | Stator for a dynamoelectric machine A stator winding is prepared by inserting U-shaped conductor segments into pairs of slots from a first end surface end of a stator core and welding together end portions of the conductor segments projecting outward at a second end surface end of the stator core. Joi... | 09/13/2005 |
| 6938325 | Methods of fabricating electromagnetic meta-materials In one embodiment, a method for fabricating electromagnetic meta-materials includes applying first and second array of electromagnetically reactive patterns to first and second non-conducting surfaces, wherein the first array includes at least one of a split ring re... | 09/06/2005 |
| 6907872 | Ignition coil apparatus for internal combustion engine An ignition coil apparatus for an internal combustion engine does not generate a discharge between a high-voltage terminal and an iron core even if a high-voltage cable falls off from a high-voltage side connector, and the overall height thereof can be reduced. An i... | 06/21/2005 |
| 6885277 | Externally adjustable impedance transformer An externally adjustable RF impedance matching mechanism comprises an upper lid and a base containing a circuit element board therebetween. One or more than one precise adjustment device for adjusting impedance value are provided under the upper lid. Impedance adjus... | 04/26/2005 |
| 6778053 | Powder coated generator field coils and related method A field coil for an electromagnetic rotor comprising multiple windings, each substantially entirely coated with a powder resin having a dielectric strength of at least in the range of 1000-1500 v/mil. A method of manufacturing a field coil for an electromagnetic rot... | 08/17/2004 |
| 6737949 | Electromagnetic clutch coil assembly and manufacturing method thereof A method of manufacturing an electromagnetic clutch coil assembly provided in a compressor of an air conditioner for an automobile is achieved by forming a coil winding by winding a coil coated with an adhesive, heating the coil winding in a state of being pressed i... | 05/18/2004 |
| 6734777 | Transformer with improved insulation A transformer with good insulation is disclosed. The transformer includes a bobbin, an insulating shell and a core structure. The bobbin is wound with a secondary winding. The insulating shell encloses the bobbin and the insulating shell is wound with a primary wind... | 05/11/2004 |
| 6707365 | Electromagnetic coupling apparatus An electromagnetic coupling apparatus includes a ring case, a coil and a connector. The ring case has an annular groove. The coil is an electrical wire and is disposed in the annular groove of the ring case. An opening is formed through the ring case in its closed e... | 03/16/2004 |
| 6624734 | DC voltage/current heating/gelling/curing of resin encapsulated distribution transformer coils An internal heating method for drying, gelling and final curing of epoxy resin insulation systems used for encapsulating dry type cast distribution transformer coils is disclosed. The internal method uses a Direct-Current (DC) power source to control and ... | 09/23/2003 |
| 6594885 | Method of making a coil A method of assembling a coil includes forming a ferrite core having a top end, a bottom end, an inner opening extending from the top end to the bottom end, a cylindrical outer surface, and a step portion formed near the bottom end, the step portion exten... | 07/22/2003 |
| 6583698 | Wire core inductive devices The magnetic core of an inductive device is formed of a plurality of wires that extend through the inductive device, and beyond the electric winding. The ends of the wires are formed around the electric winding, meet, and are connected together enveloping... | 06/24/2003 |
| 6492892 | Magnet wire having differential build insulation A magnet wire having differential build insulation for use in transformer coils is disclosed. The wire has a rectangular conductor with an insulation that is thicker on the top and bottom surfaces of the wire than it is on the sides. With the thicker coat... | 12/10/2002 |
| 6449830 | Method of manufacturing wire wound electronic component A wire wound electronic component includes a bobbin having a core 1a having a substantially circular cross-section and rectangular flanges 1b formed at both ends of the core. A groove 2 is formed in each side of each flange 1b. A conductive film or extern... | 09/17/2002 |
| 6411188 | Amorphous metal transformer having a generally rectangular coil A dry-type power distribution transformer has a generally rectangular, wound amorphous metal core and a resin encapsulated, generally rectangular coil. The core has a generally rectangular core window within which is located a substantially straight secti... | 06/25/2002 |
| 6404316 | Magnetic device and method of manufacture therefor A magnetic device and a method of manufacture therefor. In one embodiment, the magnetic device includes: (1) a bobbin having a winding guide and molded-in margins proximate opposing inside flanges of the bobbin, each of the opposing inside flanges having ... | 06/11/2002 |
| 6343595 | Ignition coil for internal combustion engine In an independent ignition type ignition coil for an internal combustion engine which is used being directly coupled to a corresponding ignition plug, a center core 1, a secondary coil 3 wound around a secondary coil bobbin 2 and a primary coil 5 wound ar... | 02/05/2002 |
| 6310533 | Water-resistant encapsulation of solenoid This invention relates to the resin encapsulation of solenoids to achieve water resistance at pressure depth. When a compatible and bondable resin is used to form a solenoid bobbin, to insulate the lead-in wires and to encapsulate the solenoid, the result... | 10/30/2001 |
| 6308401 | Transformer coil and method An improved transformer coil of the type characterized as a shell-form or pancake coil used in large scale power transmission transformers. The improvement adds strength to resist lateral edge coil deformation as a result of handling the coil during trans... | 10/30/2001 |
| 6300857 | Insulating toroid cores and windings A transformer and method of making a transformer is disclosed. The transformer has a magnetic core, a first winding and a second winding. The first and second windings are wound about the core, and an insulating jacket, which includes a plurality of protr... | 10/09/2001 |
