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| Number | Title | Issue Date |
| 8089333 | Inductor mount method and apparatus The invention comprises an inductor mounting method and apparatus. An about annular inductor is mounted using a non-conducting clamp element passing at least into a center opening of the inductor. Mounting hardware forces the clamp element toward a mounting surface ... | 01/03/2012 |
| 8009008 | Inductor mounting, temperature control, and filtering method and apparatus Methods and apparatus according to various aspects of the present invention may be implemented in conjunction with a inductor mount mounting to a mounting surface. The inductor mount may comprise an inductor having a center opening, and a surface area encompassing a... | 08/30/2011 |
| 7623016 | Snap together multiple phase inductor assembly The magnetic core and electrical coils of a multiple phase inductor are held together by a non-magnetically permeable retainer. The retainer has a base with a cavity that receives the magnetic core and has U-shaped arms that form channels which guide and align the c... | 11/24/2009 |
| 7365625 | Tank for electrical apparatus immersed in fluid A tank for an electrical apparatus immersed in fluid is formed by a couple of long opposite of opposing walls where any of them have one or more supporting folds; and a couple of short opposite or alternate opposing walls joined to the long walls on their lateral en... | 04/29/2008 |
| 7271691 | Method of winding coil and transformer and inverter liquid crystal display having coil wound using the same A method of winding a coil of a transformer in an inverter of a liquid crystal display including a bobbin wound with a coil and a core introduced into the bobbin, the method includes forming a coil winding part having no protrusion member at the bobbin so as to excl... | 09/18/2007 |
| 7135949 | Transformer or inductor containing a magnetic core having abbreviated sidewalls and an asymmetric center core portion An inductor or transformer for mounting on a PCB has a two-part magnetic core structure and at least one coil wound on a bobbin. Each core part has a backwall and an abbreviated outer skirt extending from the backwall and an asymmetric center core element extending ... | 11/14/2006 |
| 7116200 | 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... | 10/03/2006 |
| 7113064 | Active device for damping the vibrations of a vibrating element An active device for damping vibration comprises an actuator comprising a magnetically permeable armature and a coil associated with a magnetically permeable yoke sliding along a displacement axis under the effect of a magnetic field generated by a current conveyed ... | 09/26/2006 |
| 7078995 | Ferrite core A core for minimizing the footprint of a core-based components while also minimizing the total harmonic distortion exhibited by the component. The core (40) includes a back wall portion (42), a central wall portion (44), and an outside wall port... | 07/18/2006 |
| 7048875 | High oleic acid oil compositions and methods of making and electrical insulation fluids and devices comprising the same High oleic acid triglyceride compositions that comprise fatty acid components of at least 75% oleic acid, less than 10% diunsaturated fatty acid component; less than 3% triunsaturated fatty acid component; and less than 8% saturated fatty acid component; and having ... | 05/23/2006 |
| 6940384 | Packaging techniques for a high-density power converter A high-density power converter that benefits from improved packaging techniques and thermal handling capability is provided. The power converter includes a magnetic core. The converter further includes a printed circuit board providing at least one cutout for receiv... | 09/06/2005 |
| 6903647 | Solenoid valve coil having an integrated bobbin and flux ring assembly A coil assembly for a solenoid valve includes a bobbin formed from an electrically insulative material. A bore extends axially through the bobbin. A first flux ring having a sleeve extending axially from an annular base is mounted upon a first end of the bobbin with... | 06/07/2005 |
| 6867676 | Transformer The present invention is a kind of a transformer, equipped with a wire-winding flute on a wire-winding unit that has surrounding grooves added to each end, and adding plug pins to the for sides of a iron slot of a iron core, using the plug pins to attach itself to t... | 03/15/2005 |
| 6847285 | Interlock tabs for laminations A laminated plate assembly in which the laminations in a stack are secured together by means of one or more interlocks or tabs that project from the uppermost lamination in the assembly through holes or slots in all the other laminations in the assembly, or around t... | 01/25/2005 |
| 6847283 | Inductive translator composed of two spools with respective cores The invention concerns an inductive transmitter comprising two coils (1, 2), each with one core (3, 4). The two cores (3, 4) are capable of being moved relative to each other. Two systems are integrated in the transmitter that make it possible t... | 01/25/2005 |
| 6800983 | Magnetic circuit structure, and power-generating device and electronic device using the same Opposing concave structures formed in an end portion 22b of a stator yoke 22 and an end portion 23b of a magnetic core 23 are mated in a staggered manner and are joined. An upper projecting portion 22b-1 | 10/05/2004 |
| 6784781 | Reactor and ballast system An improved reactor and ballast system is provided. The reactor includes a core having an I portion and a rolled portion which forms a core opening, a coil having an electrically insulated coil opening through which the I portion extends, and a spacer between the I ... | 08/31/2004 |
| 6713734 | Image heating apparatus for heating image formed on recording material An image heating apparatus has an excitation coil for generating a magnetic field and a heating member for dissipating heat by an eddy current induced in the heating member by that magnetic field. A core is provided for guiding the magnetic field and the core includ... | 03/30/2004 |
| 6696909 | Circuit module and method for mounting the same A circuit module has a circuit board on which electronic components are mounted and a covering member which has a plate portion and one or more supporting portions. The supporting portions fix the plate portion parallel to the surface of the circuit board... | 02/24/2004 |
| 6690256 | Coil device In order to improve efficiency of core rubbing operation and also to facilitate reduction in thickness of a coil device, a core-combining member includes substantially U-shaped topside and backside cover members, and a pair of core members are clamped and... | 02/10/2004 |
| 6661323 | Surface mounting device and its used support A support is used to modify an inductive device to a surface mounting device. The inductive device is provided with a core and a coil, and the support includes an electric portion and an isolation portion. The electric portion, having a first surface and ... | 12/09/2003 |
| 6650219 | Ignition coil core isolation A pencil ignition coil assembly module (40) that has a frusto-conically tapered core (46) and encapsulation (280) surrounding the side of the core. Features (216, 230, 234) center the core to a bobbin 48. A retainer (240, 240A) captures the core within th... | 11/18/2003 |
| 6646535 | Magnetic core A core has a plurality of plate-shape core pieces with a magnetic pole tooth and having connecting portions formed at one end and having a first circular arc end surface and having at the other end a second end surface which can mate with the first end su... | 11/11/2003 |
| 6583706 | Toroidal choking coil The invention relates to a toroidal choking coil comprising a substantially annular core, a winding around the core, and a fixing device arranged around the core substantially between the core and the winding. The toroidal choking coil is characterized in... | 06/24/2003 |
| 6578253 | Transformer and inductor modules having directly bonded terminals and heat-sink fins A matrix transformer and/or inductor module has its terminations bonded rigidly to the ferrite core of which it is made. Because the ferrite core is strong and dimensionally stable, the terminations are rugged and precisely located, important criteria for... | 06/17/2003 |
| 6480088 | Common mode choke coil A common mode choke coil is realized in which countermeasures against leakage flux are taken so as to reduce adverse effects on an external apparatus. Coils 291, 292 are wound around a toroidal magnetic core 22 and sandwich a partition plate 27 provided w... | 11/12/2002 |
| 6424246 | Transformer core and coil support A transformer includes a tank having a side wall, a core defining a core window, and a pair of coils, each of which surrounds a portion of the core and includes a portion passing through the core window. The transformer further includes a core and coil su... | 07/23/2002 |
| 6420949 | Core of solenoid actuator A core of a solenoid actuator is provided which is improved in durability, and at the same time ensures high energy efficiency of the solenoid actuator. The core of the solenoid actuator attracts an armature during operation of the solenoid actuator. A pl... | 07/16/2002 |
| 6362717 | Coil assembly A coil assembly comprises a bobbin for supporting a coil. The bobbin supports a metal ferrule. A metal bracket is releasably coupled to the bobbin. The bracket holds the ferrule in place. The ferrule and the bracket are arranged to cooperatively serve as ... | 03/26/2002 |
| 6359542 | Securement for transformer core utilized in a transformer power supply module and method to assemble same An apparatus and method for releasable securement together of a transformer power supply assembly together which includes a stacked arrangement (20) of a first transformer core plate (28) positioned to overlie a circuit board (26), a second transformer co... | 03/19/2002 |
| 6335673 | Current transformer and its manufacturing process The current transformer comprises a magnetic circuit and a secondary winding. The magnetic circuit is formed by stacked metal plates. Each plate comprises a cut-out without an air-gap. The magnetic circuit comprises a fixed first part enabling the seconda... | 01/01/2002 |
| 6326875 | Arrangement for implementing a magnetic circuit on a circuit board The invention relates to an arrangement for implementing a planar magnetic circuit on a circuit board. The arrangement includes (a) printed circuit board (PCB), wherein a conductive wire pattern of an inductive circuit is formed as well as openings throug... | 12/04/2001 |
| 6320492 | Transformer and coil bobbin therefor A transformer comprising: a coil bobbin which includes a pair of core winding portions and a pair of coupling portions for coupling the core winding portions so as to space the core winding portions a predetermined distance from each other and is formed, ... | 11/20/2001 |
| 6292083 | Surface-mount coil A structure of a surface-mount coil is provided which prevents a decrease in the fixing strength between the core and the lead frame of the surface-mount coil when soldering of a surface-mount coil to a mount board. Specifically, the structure of the surf... | 09/18/2001 |
| 6249208 | Chip inductance A chip inductance is composed of a wound coil core (1) that is arranged erect on a system carrier (6). Perpendicularly residing clips (7) are located on the system carrier, whereby the coil core (1) is arranged within the space formed by the clips. The te... | 06/19/2001 |
| 6218926 | Reactor and transformer core assembly A magnetic core assembly and method of assembling a magnetic core assembly. The core assembly includes laminated magnetic core tightly clamped together by a pair of unitized flanged clamps. Each unitized flanged clamp has a generally flat surface and a pe... | 04/17/2001 |
| 6094124 | Ballast for discharge lamp and method and apparatus for manufacturing the same Ballast for a discharge lamp, which can make a sustained power supply to the discharge lamp, and method and apparatus for manufacturing the same, are disclosed. The ballast having a core assembly (4) with one pair of stacks of a plurality of cores (3) sym... | 07/25/2000 |
| 6070317 | Quiet magnetic structures A quiet transformer includes a laminated core having each laminate formed as a flat layer from highly grain oriented silicon steel which is fabricated by laser cutting techniques with each layer including five segments in intimate contact with each other ... | 06/06/2000 |
| 6005468 | Amorphous transformer An amorphous transformer prevents deformation or deflection caused by the repulsion force between an outer coil and an inner coil and prevents formation of a one-turn-current through a reinforcement member and a coil frame. The amorphous transformer inclu... | 12/21/1999 |
| 5952907 | Blind hole pot core transformer device A blind hole pot core transformer comprised of a base member having a toroidal channel with a central post and a cover member also having a toroidal channel with a central post. A bobbin winding is positioned within a cavity defined by the toroidal channe... | 09/14/1999 |