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| Number | Title | Issue Date |
| 7071631 | Electromagnetic pulse device An electromagnetic pulse device having a conductive coil, and optionally a conductive core disposed within the coil and spaced apart there from. One or more plasma discharge devices are disposed at least partially along a length of the conductive coil and are spaced... | 07/04/2006 |
| 6650068 | Induction coil core, illumination unit using the same, and polycrystalline ferrite The induction coil core used for an induction coil of a discharge lamp, the discharge lamp including: a bulb containing discharge gas inside; and the induction coil for generating an electromagnetic field with a frequency in a range of 50 kHz to 1 MHz inc... | 11/18/2003 |
| 6130512 | Rf capacitively-coupled electrodeless light source An rf capacitively-coupled electrodeless light source is provided. The light source comprises a hollow, elongated chamber and at least one center conductor disposed within the hollow, elongated chamber. A portion of each center conductor extends beyond th... | 10/10/2000 |
| 6057649 | Illumination unit, electrodeless low-pressure discharge lamp, and coil suitable for use therein An illumination unit including an electrodeless low-pressure discharge lamp (20) and a supply device (50). The lamp has a discharge vessel (30) which encloses in a gastight manner a discharge space (31) which is provided with an ionizable filling. The lam... | 05/02/2000 |
| 5642019 | Safety protector for non-isolated ballasts A protection circuit for non-isolated ballasts that drive gas discharge lamps to prevent shock hazards. The device acts to prevent excessive leakage currents from flowing between the ballast and ground by introducing a higher common mode impedance path in... | 06/24/1997 |
| 5440206 | Plasma processing apparatus comprising means for generating rotating magnetic field In a plasma processing s including a processing chamber and plate-parallel electrodes, provided in the processing chamber, for generating a high-frequency electric field in response to a high-frequency voltage, a ring-shaped core is provided in the periph... | 08/08/1995 |
| 5343126 | Excitation coil for an electrodeless fluorescent lamp An excitation coil for an electrodeless fluorescent lamp of the type having a core of insulating material, is made of a metal having a low thermal expansion coefficient which is plated with a high-conductivity metal. An insulating coating is applied over ... | 08/30/1994 |
| 4745338 | Electromagnetically sustained plasma reactor An improved plasma arc reactor is provided with variably positionable electrodes, including a cylindrical anode electrode having an inner, frustoconical cavity providing a reaction chamber and a spherical cathode ball electrode mounted therein. Between th... | 05/17/1988 |
| 4322661 | Cross-field plasma mode electric conduction control device Crossed-field plasma mode electric conduction control device 10 has an interelectrode space 16 between anode 12 and cathode 14 in which is produced a magnetic field 38 by coil 28. Electrons produced at region 46 travel through the crossed-fields to region... | 03/30/1982 |
| 4162431 | Method and apparatus for controlling the erosion of arc producing electrodes Apparatus and process for reducing the rate of erosion of electrodes between which an arc is sustained by the provision of a field coil around the electrode which is supplied with direct current and the oscillation of that direct current supply at a frequ... | 07/24/1979 |
| 4064418 | Controlled arc stream in high intensity discharge lamps A discharge lamp with minimized upward bowing of the arc in which conductors carrying full arc current are placed in close proximity above and below the arc tube. The conductors run parallel with the longitudinal axis of the arc tube and the conductors ab... | 12/20/1977 |
| 4017764 | Electrodeless fluorescent lamp having a radio frequency gas discharge excited by a closed loop magnetic core An electrodeless fluorescent lamp adapted for economical substitution in place of existing incandescent lamps comprises an ionizable medium contained within a phosphor coated globular envelope. A closed loop, magnetic core, which may be ferrite, is contai... | 04/12/1977 |
| 4005330 | Electrodeless fluorescent lamp An electrodeless fluorescent lamp adapted for economical substitution in place of an existing incandescent lamp comprises an ionizable medium contained within a phosphor coated globular envelope. A closed loop magnetic core transformer, contained within a... | 01/25/1977 |
| 3987335 | Electrodeless fluorescent lamp bulb RF power energized through magnetic core located partially within gas discharge space An induction-ionized, electrodeless fluorescent lamp comprises a phosphor coated, globular envelope. An ionizable gas is contained in the envelope to produce radiation which excites the phosphor to produce light. A closed loop, magnetic core lying partial... | 10/19/1976 |
| 3987334 | Integrally ballasted electrodeless fluorescent lamp An electrodeless fluorescent lamp, suitable for substitution in place of existing incandescent lamps, comprises a gas filled toroidal envelope assembly removably mounted around a cylindrical ballast assembly. The ballast supplies radio frequency energy wh... | 10/19/1976 |
