Did You Know...
...that the Band-Aid Bandage was invented by a Johnson & Johnson employee whose wife had cut herself? Earl Dickson's wife was rather accident prone, so he set out to develop a bandage that she could apply without help. He placed a small piece of gauze in the center of a small piece of surgical tape, and what we know today as the Band Aid bandage was born!
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| Number | Title | Issue Date |
| 7948341 | Moisture protection for an electromagnetic coil A coil for an inductive sensor, such as a coil which is used in a sensor that operates according to the principle of electromagnetic force compensation for converting an amount of force generated by a load applied to a force-measuring cell into an electrical signal,... | 05/24/2011 |
| 7319717 | Device and method for enabling communications signals using a medium voltage power line In one embodiment, a device for enabling communications signals over a medium voltage power line includes a first modem, a second modem, a third modem, and one or more switches. The first modem is electrically coupled to a medium voltage power line and is adapted to... | 01/15/2008 |
| 7301440 | Power line communication system and method The present invention provides a device for providing communications through power lines comprised of multiple conductors by transmitting the data signals through a plurality of the conductors. One embodiment of the present invention may be comprised of a transmit c... | 11/27/2007 |
| 7250841 | Saucer-shaped half-loop MEMS inductor with very low resistance A micro-electromechanical system (MEMS) inductor is formed in a saucer shape that completely surrounds a magnetic core structure which is formed from a ferromagnetic material. In addition, an array of MEMS inductors can be formed by dividing up the saucer-shaped MEM... | 07/31/2007 |
| 7219416 | Method of manufacturing a magnetic element The present invention provides a composite magnetic body containing metallic magnetic powder and thermosetting resin and having a packing ratio of the metallic magnetic powder of 65 vol % to 90 vol % and an electrical resistivity of at least 104 Ω·cm. W... | 05/22/2007 |
| 7199695 | Multiphase voltage regulator having coupled inductors with reduced winding resistance A multiple phase buck converter or boost converter, or buck-boost converter has an inductor in each phase. A magnetic core with a unique woven topology provides inverse coupling between the inductors. The inductors can comprise straight conductors since the magnetic... | 04/03/2007 |
| 7151422 | 90° hybrid A 90° hybrid for splitting or interconnecting radio frequency power includes four gate connections, capacitances and inductances for electric capacitive coupling and magnetic inductive coupling, an arrangement of strip conductors that are disposed approximately par... | 12/19/2006 |
| 7148783 | Microwave tunable inductor and associated methods The inductor, preferably a microwave tunable inductor, includes first and second wires twisted together to define a double helix having a first end and second end with a plurality of twists therebetween. First and second terminals are at the first end of the double ... | 12/12/2006 |
| 7142086 | Ultra broadband inductor assembly Systems and apparatuses for providing a broadband inductor assembly. One broadband inductor assembly includes a conical coil inductor having a broad end with radius r1 and a narrow end with radius r2, the conical coil inductor also having a bro... | 11/28/2006 |
| 7075414 | Device and method for communicating data signals through multiple power line conductors The present invention provides a device for providing communications through power lines comprised of multiple conductors by transmitting the data signals through a plurality of the conductors. One embodiment of the present invention may be comprised of a transmit c... | 07/11/2006 |
| 7046124 | Power line coupling device and method of using the same The coupler of the present invention couples broadband RF signals to and from a power line conductor. The coupler of one embodiment that is for use with overhead power lines includes a length of URD MV cable with the neutral conductor removed and that is communicati... | 05/16/2006 |
| 6998962 | Power line communication apparatus and method of using the same A communication device for use with a power line communication system is provided. One embodiment forms a bypass device and comprises a low voltage coupler, a low voltage signal conditioner, a controller, a medium voltage modem, a first medium voltage signal conditi... | 02/14/2006 |
| 6995645 | Igniter transformer An igniter transformer includes a secondary coil and a primary coil which are closely coupled. A plurality of round single-core wires disposed substantially parallel to one another in a common plane are bonded side by side to form a flat multicore wire that is subst... | 02/07/2006 |
| 6980090 | Device and method for coupling with electrical distribution network infrastructure to provide communications A device for providing communications through power lines that are communicatively coupled to an electrical distribution network infrastructure and to the internal wiring of at least one customer premises having one or more communication devices therein is provided.... | 12/27/2005 |
| 6980091 | Power line communication system and method of operating the same The present invention provides a system for operating a power line communications system that is comprised of a plurality of network elements, which may take the form of repeaters, bypass devices, backhaul devices, wireless backhaul devices, enhanced bypass device, ... | 12/27/2005 |
| 6965302 | Power line communication system and method of using the same The communication system of one embodiment is for communicating data through a power distribution system having a medium voltage power line and low voltage power line and comprises a first device comprising a first wireless transceiver, a first modem in communicatio... | 11/15/2005 |
| 6965303 | Power line communication system and method A method of communicatively coupling power line communication (PLC) devices to a first and second overhead power line conductor that travel in a substantially parallel physical arrangement and in spaced-apart relation is provided. The method may comprise coupling a ... | 11/15/2005 |
| 6950567 | Method and apparatus for providing inductive coupling and decoupling of high-frequency, high-bandwidth data signals directly on and off of a high voltage power line The present invention is drawn to an electrically “closed” method and apparatus for transmitting and receiving data signals over a high voltage power line. Inductive coupling is employed for coupling and decoupling the data signal directly on to and off of a sin... | 09/27/2005 |
| 6933828 | Devices and methods for protecting windings around a sharp edged core Electromagnetic devices are provided including an electrically conductive core having an inner diameter defining an opening therethrough and an outer diameter, the core having sharp edges extending circumferentially around the inner diameter and around the outer dia... | 08/23/2005 |
| 6906609 | Planar transformer A transformer having at least one primary winding and one secondary winding. The windings are disposed between walls of a first and second bobbin member. In preferred eombodiments, the creepage distance between the windings can be increased by providing a flange on ... | 06/14/2005 |
| 6646531 | Coated coil assembly of a transformer A method for forming a resin molding on a coil of a transformer is disclosed. The method comprises the steps of inserting a coil into an auxiliary spacing apparatus, inserting the auxiliary spacing apparatus into a mold, and forming a resin molding for th... | 11/11/2003 |
| 6509821 | Lumped element microwave inductor with windings around tapered poly-iron core A microwave inductor including a coil with windings tapered from a first end of the coil to a second end of the coil to reduce resonant loss glitches found in conventional inductors which have uniform diameter windings. The coil further includes a core co... | 01/21/2003 |
| 6434057 | Memory device with a sense amplifier detection circuit to control an output buffer amplifier A memory device has an output buffer. The output buffer is electrically connected to a data output port of a sense amplifier of the memory device for amplifying an output signal from the data output port. The output buffer has a detector for producing a c... | 08/13/2002 |
| 6337615 | Electrical coil, especially for a relay, and method for producing the same The inventive coil comprises a coil body (1) on which an exciter winding (7) is arranged. A peripheral insulation winding (8) consisting of an insulating fiber is formed over the exciter winding, the individual windings of the insulating winding being bon... | 01/08/2002 |
| 6078239 | High frequency transformer A high-frequency transformer, comprises: a ring core made of amorphous magnetic material; a core protection box made of conductive material and enclosing the ring core; and a high-voltage winding, consisting of enamel-insulated wire wound on the core prot... | 06/20/2000 |
| 5982263 | Higher frequency switch mode transformer Transformer (1) for switched-mode power supply, equipped with a former (6) having chambers (9), each chamber (9) containing windings (15, 16), each winding (15, 16) having an outer side surface (18) generated by a straight line moving parallel to an axis ... | 11/09/1999 |
| 5705971 | Low leakage coaxial transformers A transformer including a core; a concentric inner primary tube passing through the core and running up and over at least a portion of the core, the concentric inner primary tube defining a longitudinal axis within the core; and a concentric outer seconda... | 01/06/1998 |
| 5559486 | Bobbin for high frequency core Disclosed a high-frequency core bobbin which comprises: a winding bobbin member on which a wingding is to be wound; a first bobbin member for accommodating therein a predetermined portion of the winding bobbin; a second bobbin member coupled with the firs... | 09/24/1996 |
| 5477027 | Electrical soldering device with a split cylinder transformer secondary An electrical soldering device in the form of a soldering gun has a transformer disposed in a housing with a primary winding and a secondary winding. The transformer is supplied from an A.C. source, such as a voltage mains. The soldering tip is in the for... | 12/19/1995 |
| 5469334 | Plastic quad-packaged switched-mode integrated circuit with integrated transformer windings and mouldings for transformer core pieces A switching power supply embodiment of the present invention includes a plastic leaded chip carrier (PLCC) that has two rectangular holes joined by a channel on the bottom surface that allow the PLCC to be surface mounted on a printed circuit board over a... | 11/21/1995 |
| 5459395 | Reduced flux current sensor An alternating current sensor for measuring a primary alternating current inducing a magnetic flux density defined over a known region comprises: a first sensor for measuring changes in magnetic flux due to the primary current over a first predetermined a... | 10/17/1995 |
| 5453681 | Current sensor employing a mutually inductive current sensing scheme An alternating current sensor employing a mutually-inductive current sensing scheme comprises a conductive pipe and a cylindrical-shaped conductive element at least partially surrounded by the pipe. The pipe is substantially concentric to the conductive e... | 09/26/1995 |
| 5416408 | Current sensor employing a mutually inductive current sensing scheme with a magnetic field substantially uniform in angular direction An alternating current sensor employing a mutually-inductive current sensing scheme comprises a conductive pipe and a cylindrical-shaped conductive element at least partially surrounded by the pipe. The pipe is substantially concentric to the conductive e... | 05/16/1995 |
| 5302931 | Coil for a transformer, in particular a high-voltage transformer A method of manufacturing a coil for a transformer and in particular a high voltage transformer in which the starting end of a wire with a bondable thermoplastic sheet is electrically conductively connected to an axially slit sleeve of non-magnetic metal ... | 04/12/1994 |
| 5122773 | Device for injecting an electromagnetic signal into a conductive wire A device for injecting an electromagnetic signal into a conductive cable to be tested, the device being generally cylindrical and having a central bore through which the cable passes. A plurality of concentric cylinders is arranged around the central bore... | 06/16/1992 |
| 5066904 | Coaxial current sensors A sensor for measuring large magnitudes of A.C. current utilizes a current divider having parallel conductors and a current comparator coupled to one of the conductors so arranged as to perform first and second stages of scaling of the A.C. current to obt... | 11/19/1991 |
| 4868533 | Transformer with a one-piece primary winding and housing Described is a transformer wherein the primary winding is formed from the same unitary piece of electrically conductive metal that comprises the housing of the transformer.... | 09/19/1989 |
| 4868532 | Transformer with a two-piece primary winding and housing Described is a transformer having a two-piece primary winding and housing wherein the second piece is mechanically received within the first piece and electrically coupled together.... | 09/19/1989 |
| 4839616 | Broadband impedance transformer A transformer for modifying the characteristics impedance of a transmission line. The transformer provides non-integer-squared impedance transformation ratios without the need for tapping one of the windings or the use of other non-balanced techniques.... | 06/13/1989 |
| 4624884 | Heat radiating insulation for coil A thermosetting synthetic resin composition consisting mainly of, for example, an epoxy resin is melted at a temperature of 70° to 130° C. After adding a filler to the resin composition, the resultant mixture is kneaded and rapidly cooled. The compositi... | 11/25/1986 |
