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| Number | Title | Issue Date |
| 8125752 | Coaxial broadband surge protector A high voltage surge protection device having a characteristic impedance includes a center conductor defining an axis, an electrically conductive outer body concentrically disposed in surrounding relation to the inner conductor, and a dielectric layer disposed betwe... | 02/28/2012 |
| 8064182 | Overvoltage protection plug An overvoltage protection plug is disclosed. The plug includes a housing forming a body, a handle, and an insertion portion. The plug further includes a circuit board mounted at least partially within the body. A portion of the circuit board protrudes from the housi... | 11/22/2011 |
| 7872844 | Composite electronic device A composite electronic device includes: a coil conductor arranged on at least one of a plurality of insulating layers; a drawing conductor arranged on another insulating layer and partially facing the coil conductor and having one end electrically connected to one e... | 01/18/2011 |
| 7733622 | Surge absorber and production method therefor This surge absorber includes an insulating part upon which is formed a conductive layer which is divided into two separate portions by a discharge gap (micro gap) around its circumferential surface; a pair of terminal electrodes which are arranged to oppose the insu... | 06/08/2010 |
| 7719815 | Surge absorber In a surge absorber, a pair of protrusion electrodes is fixed to a pair of terminal electrode members at positions shifted from the center of the terminal electrode members to be point-symmetrical with the center of a ceramic insulator tube and a distance between th... | 05/18/2010 |
| 7663856 | Spark gap comprising an optically triggered power semiconductor component A surge protector (1) has a spark gap (2) that is provided with two opposite electrodes (3), a circuit (5) for triggering the spark gap (2), and a light source connected to a protective device (13) on ground potential in ord... | 02/16/2010 |
| 7660095 | Surge protector A surge protector coated with an oxide layer having an excellent chemical stability at the high temperature range and excellent adherence with respect to main discharge electrodes. The surge protector includes a column-shaped ceramic member that has a conductive fil... | 02/09/2010 |
| 7646577 | Power plugging device with a function of releasing charges from electric surges A power plugging device with a function of releasing charges from electric surges serves for resolving problems caused by the switching surge generated by the electric system load switch, or the lightning surge generated directly or indirectly by the lightning. Acco... | 01/12/2010 |
| 7643265 | Gas-filled surge arrester, activating compound, ignition stripes and method therefore A gas-filled surge arrester includes at least two electrodes, a gas filling and an activating compound applied to at least one of said electrodes. The activating compound can include: (i) nickel powder in an amount of about 10% to about 35% by weight; (ii) potassium... | 01/05/2010 |
| 7570473 | Surge absorber There is provided a surge absorber which has excellent chemical stability in a high-temperature region upon a sealing process and main discharge and has a long life span, by applying an oxide layer having excellent adhesion to a main discharge surface. A columnar ce... | 08/04/2009 |
| 7564669 | Protective device A protective device for transmitting electromagnetic signals of a desired frequency band from a source to a load comprises an outer conductor, an inner conductor extending coaxially within the outer conductor and a quarter wavelength shunt conductor. The shunt condu... | 07/21/2009 |
| 7564668 | Overvoltage protection means An overvoltage protection device for use in power supply, especially low voltage systems, is described, with a housing (2), a first electrode (3), at least one second electrode (4), an arc chamber (5) within the housing (2) between... | 07/21/2009 |
| 7545619 | Overload protection device A surge protection device includes a first electrode and a second electrode. An air breakdown spark gap is between the second and first electrodes, an arc being formed upon an ignition of the air breakdown spark gap. A series arrangement of a potential dividing elem... | 06/09/2009 |
| 7532450 | Surge suppressor An overvoltage protection means having a first electrode (1), a second electrode (2), a breakdown spark gap between the two electrodes (1, 2), and a housing (3) which holds the electrodes (1, 2). When the breakdown spark gap is ign... | 05/12/2009 |
| 7369390 | Gas-insulated surge arrester The surge arrester contains a tubular encapsulation (1) of electrically conductive material that is filled with an insulating gas, an insulator (17) that is held on the encapsulation (1) and serves for supporting a current conductor (R) that is ... | 05/06/2008 |
| 7355832 | Methods and arrangements for reducing partial discharges on printed circuit boards Methods and arrangements for reducing partial discharges on a printed circuit board are provided. A method of reducing partial discharge in a printed circuit board includes providing a conducting surface coupled to a component under at least one of electrical and th... | 04/08/2008 |
| 7336464 | Power limiting circuit A power limiting circuit is disclosed. The power limiting circuit includes a temperature sensing circuit that outputs a temperature signal that is proportional to temperature over a temperature range. The power limiting circuit also includes a regulation circuit cou... | 02/26/2008 |
| 7336474 | Microelectromechanical devices An apparatus includes a switch comprising microelectromechanical elements, the microelectromechanical elements including a sealed chamber containing a dielectric element, and conductors in the sealed chamber. The conductors are arranged such that application of grea... | 02/26/2008 |
| 7332906 | Vacuum circuit interrupter including circuit monitoring leakage or loss of vacuum and method of monitoring a vacuum interrupter for leakage or loss of vacuum A method monitors a vacuum interrupter for leakage or loss of vacuum. The vacuum interrupter includes a line side, a load side and separable contacts electrically connected therebetween. The line side has a line side voltage and the load side has a load side voltage... | 02/19/2008 |
| 7324319 | Surge protection device A surge protection device includes a first electrode and a second electrode. An air breakdown spark gap is between the second and first electrodes, an arc being formed upon an ignition of the air breakdown spark gap. A series arrangement of a potential dividing elem... | 01/29/2008 |
| 7319191 | Signal adapter A signal adapter comprising an explosion proof housing, a circuit member disposed on an inside of the explosion proof housing, a signal input connector electrically connected to the circuit member, a signal output connector electrically connected to the circuit memb... | 01/15/2008 |
| 7312970 | Low cost surge protection A motor drive for an electric machine includes a live line, a second line, and a ground line. A surge protector includes a first varistor and a gas discharge tube (GDT) that is non-conductive below a trigger voltage and that is conductive above the trigger voltage. ... | 12/25/2007 |
| 7295416 | Device and method for triggering a spark gap A device for quick closing of an electric high-voltage circuit. A main spark gap is provided with a first and a second main electrode, and a triggering device. The triggering device includes an auxiliary electrode gap provided with a first and a second auxiliary ele... | 11/13/2007 |
| 7289309 | Isolation apparatus The apparatus is intended for disconnection of a live electrical conductor and has an enclosure (3) and two power connections (1, 2) which are passed out of the enclosure (3). A conductor section (7) which connects the two power connectio... | 10/30/2007 |
| 7280338 | Power supply circuit, back-pack power supply module and circuit interrupter including the same A back-pack power supply module is for a circuit interrupter including an elongated line conductor. The back-pack power supply module includes a housing having an opening therethrough. The opening receives the elongated line conductor, which passes through the openi... | 10/09/2007 |
| 7277003 | Electrostatic discharge protection component An electrostatic discharge protection component of an array type includes ceramic insulating substrate 12; varistor region 10 which is pasted on ceramic insulating substrate 12 and then is sintered integrally with ceramic insulating substrate | 10/02/2007 |
| 7256978 | Gapped ground safety device A gapped ground safety device is provided to protect workers on de-energized underground distribution cable from ground faults or accidental energization. The device comprises a combination precision gap and an MOV surge arrester. ... | 08/14/2007 |
| 7251114 | Overvoltage protecting circuit in a steady state The invention relates to an overvoltage protection circuit comprising an MOV (Metal Oxide Varistor) voltage limiting device (3) which is disposed in series with a GDT (Gas Discharge Tube) voltage limiting device (4). The invention is characterized in t... | 07/31/2007 |
| 7218051 | Discharge tube A discharge tube includes a cylinder having first and second end planes, first and second discharge electrodes coupled to the respective first and second end planes, the first and second discharge electrodes having respective upper and lower discharge planes forming... | 05/15/2007 |
| 7189934 | Self-healing liquid contact switch A self-healing liquid contact switch and methods for producing such devices are disclosed. An illustrative self-healing liquid contact switch can include an upper actuating surface and a lower actuating surface each having a number of liquid contact regions thereon ... | 03/13/2007 |
| 7161784 | Spark gap apparatus and method for electrostatic discharge protection An apparatus for providing electrostatic discharge protection includes a first conductive trace and a second conductive trace. The first conductive trace defines a first conductive periphery and is deposited on a first surface. The second conductive trace defines a ... | 01/09/2007 |
| 7154061 | Interrupter assembly for a circuit breaker A preferred embodiment of an interrupter assembly for a circuit breaker includes a first contact, a conductor, and a second contact mounted on the conductor. The second contact and the conductor are movable in relation to the first contact between a first position w... | 12/26/2006 |
| 7148677 | Vacuum circuit interrupter including circuit monitoring leakage or loss of vacuum and method of monitoring a vacuum interrupter for leakage or loss of vacuum A method monitors a vacuum interrupter for leakage or loss of vacuum. The vacuum interrupter includes a line side, a load side and separable contacts electrically connected therebetween. The line side has a line side voltage and the load side has a load side voltage... | 12/12/2006 |
| 7123463 | Surge lightning protection device A lightning surge protector configured for use with coaxial lines is disclosed. The lightning surge protector includes an inner conductor comprising two conductive portions mechanically and capacitively coupled together, and displaced from one another, by a dielectr... | 10/17/2006 |
| 7116081 | Thermal protection scheme for high output vehicle alternator A system and a method for thermally protecting a high output vehicle alternator are provided. The high output vehicle alternator includes a duty cycle control system. The duty cycle control system includes an alternator temperature signal generator and an alternator... | 10/03/2006 |
| 7116542 | Micro-switches for downhole use A downhole tool includes a device to be activated by electrical energy and a micro-switch that includes conductors and an element between the first and second conductors selected from the group consisting of: a dielectric element capable of being modulated to provid... | 10/03/2006 |
| 7113382 | Practical plasma arrester The present invention relates to practical plasma. Because in the plasma lightning arrester of the prior art, the intensity of the balancing charge is usually insufficient and disappear quickly, there is no sufficient time and intensity to balance out the induced ch... | 09/26/2006 |
| 7092230 | Interference filter and lightning conductor device The interference suppression filter and lightning current diverter device (1) comprises an inner conductor (3) and a housing (2) disposed approximately coaxially with it. At both ends of the housing (2) connectors (7, 8) are provid... | 08/15/2006 |
| 7082022 | Circuit for diverting surges and transient impulses A circuit for attenuating a surge is disclosed that might include a conductor for receiving the surge, a capacitor, positioned along the conductor, for blocking the surge, and a gas tube having a first end coupled to the conductor and a second end coupled to a groun... | 07/25/2006 |
| 7052768 | Solid insulator and method for manufacturing a solid insulator Solid insulator for gas-insulated encapsulated high voltage installations with an insulator body, which is supporting at least one central conductor that is provided for carrying high voltage and that is arranged in an outer enclosure. The insulator body comprises a... | 05/30/2006 |
