Did You Know...
...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!
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| Number | Title | Issue Date |
| 7321346 | Method and apparatus for driving plasma display panel There is disclosed a method and apparatus of driving a plasma display panel that is adaptive for improving its contrast and enabling its high speed driving. A driving method of a plasma display panel according to an embodiment of the present invention applies... | 01/22/2008 |
| 7218047 | Indirectly heated electrode for gas discharge tube An indirectly heated cathode for gas discharge tube C1 comprises a heater 1, a double coil 2, a plate member 3, and a metal oxide 10. An electrical insulating layer 4 is formed on the surface of heater 1. Heater 1 | 05/15/2007 |
| 7211953 | Plasma display device having portion where electrical field is concentrated A plasma display device includes a first substrate, an address electrode formed on an upper surface of the fist substrate, a first dielectric layer formed on the upper surface of the first substrate and embedding the address electrode, a second substrate which is tr... | 05/01/2007 |
| 7193367 | Indirectly heated electrode for gas discharge tube, gas discharge tube with this, and its operating device An indirectly heated cathode C1 comprises a heater 1, a double coil 2, a mesh member 3, and a metal oxide 10. An electrical insulating layer 4 is formed on the surface of heater 1. Heater 1 is inserted into and... | 03/20/2007 |
| 7145292 | Discharge lamp for dielectric barrier discharges, with overhanging discharge electrode sections The present invention relates to novel discharge structures for dielectric barrier discharge lamps, in which discharge electrode sections, which are associated with the individual discharges, of the respective electrode strips overhang adjacent sections of the elect... | 12/05/2006 |
| 7034446 | Fluorescent lamp composed of arrayed glass structures The present invention uses at least one array of complex-shaped fibers that contain at least one wire electrode running the length of the glass structure to fabricate a fluorescent lamp. At least one of the complex-shaped fibers has a complex cross-section that form... | 04/25/2006 |
| 6927539 | Device and method for operating a high pressure discharge lamp An ultra-high pressure high pressure discharge lamp device in which the lamp voltage and the distance between the lamp electrodes can be kept stable is achieved by an operating device supplying an alternating current with rectangular waves to the discharge lamp and ... | 08/09/2005 |
| 6924495 | Heat controlled ultraviolet light apparatus and methods of sanitizing objects using said apparatus A heat controlled ultraviolet light apparatus includes a source of ultraviolet light, a cover, and a heating or cooling element that heats/cools the space or gap between the ultraviolet light source and the cover. Accordingly, the ultraviolet light source may be mai... | 08/02/2005 |
| 6916559 | Ceramic material resistant to halogen plasma and member utilizing the same A member used within a plasma processing apparatus and exposed to a plasma of a halogen gas such as BCl3 or Cl2 is formed from a sintered body of metals of Group IIIa of Periodic Table such as Y, La, Ce, Nd and Dy, and Al and/or Si, for example... | 07/12/2005 |
| 6636004 | Dimmable discharge lamp for dielectrically impeded discharges The discharge spacings in discharge lamps for dielectrically impeded discharges are shortened below 3 mm, as a result of which dead times of pulsed active-power injecting can be increased so strongly, for example beyond 50 ms, that the dimming properties ... | 10/21/2003 |
| 6617790 | Metal halide lamp with ceramic discharge vessel A metal halide lamp has a ceramic discharge vessel with two ends (5) which are closed off by sealing means which enclose a capillary tube (11). An electrically conductive lead-through (9) is passed in a vacuum-tight manner through a bore in the capillary ... | 09/09/2003 |
| 6597115 | Light source device A light source device for a video monitor including a concave reflector with a middle opening and an optical axis, said optical axis being positioned tilted obliquely and a discharge lamp including an emission part with a cathode and an anode located oppo... | 07/22/2003 |
| 6268694 | Cold cathode fluorescent lamp, back-light emitting device with the cold cathode fluorescent lamp and note-type personal computer with the back-light emitting device There is provided a cold cathode fluorescent lamp including a transparent tube including first and second light-emitting areas defined by partitioning an inner space of the transparent tube, a first terminal electrode positioned in the first light-emittin... | 07/31/2001 |
| 6157134 | Lead wires for improved starting of compact fluorescent lamp systems A sealed lamp unit for a fluorescent lamp system includes first and second lamp electrodes located at respective end points of the sealed lamp unit. The lamp electrodes extend into the sealed lamp unit. A first lead wire extends into the sealed lamp unit.... | 12/05/2000 |
| 5990619 | Electrode structures for plasma addressed liquid crystal display devices A plasma addressed liquid crystal display system (10) includes improved electrode structures (90, 100, 130) that are nonuniform parallel to their surfaces and may also be nonuniform perpendicular to their major surfaces. The nonuniformities include surfac... | 11/23/1999 |
| 5864209 | Cathode filament for an ultra-violet discharge lamp A unique cathode (30) for an ultraviolet discharge lamp (10) is described. The cathode includes a triple-coil wire, i.e., the wire has a primary coil (43), a secondary coil (41) wound around the primary coil and a tertiary coil (36) wound around the secon... | 01/26/1999 |
| 5532552 | Metal-halide discharge lamp with ceramic discharge vessel, and method of its manufacture To provide an effective seal for a metal-halide discharge lamp having a ceramic discharge vessel (4), the seal is formed in multiple parts, in which a first part, adjacent the interior or discharge side of the vessel, includes a melt component (14a) which... | 07/02/1996 |
| 5502346 | Apparatus to generate corona discharges An apparatus to generate corona discharges that consists of (a) a ground electrode tube, (b) a single-opening insulating tube inserted into the ground electrode tube, (c) a high-voltage electrode tube inserted into the insulating tube, and (d) two insulat... | 03/26/1996 |
| 5317232 | AC/DC-operable glow discharge starter having two bimetals A glow discharge starter having an hermetically sealed envelope containing an ionizable medium, a bimetallic electrode including a first bimetallic element having a curved portion and a free end, and a counter electrode. A first discharge gap having a pre... | 05/31/1994 |
| 5298834 | Display discharge lamp A first display discharge lamp has a transparent airtight container filled with a discharge gas; a positive electrode disposed in the airtight container and supported by a stem having an air tube therein; a negative electrode of an inverted configuration ... | 03/29/1994 |
| 5272407 | Electric lamp having screens for reducing photo electron emission A single-ended electric lamp having an alkali-halide containing light source which produces ultraviolet radiation and is supported within an outer envelope by metallic support structure having an elongate support rod extending past the arc tube. A tubular... | 12/21/1993 |
| 5258691 | Metal halide lamp having improved operation acoustic frequencies Asymmetric discharge electrode means are provided for a metal halide lamp enabling improved operation at acoustic frequencies. A xenon-metal halide lamp employing such improved discharge electrode means is disclosed together with a reflector lamp unit emp... | 11/02/1993 |
| 5225743 | High voltage switch A switch includes a housing forming a cavity, a first electrode, and a second electrode. The first electrode has an inner surface having a generally circular cross-section perpendicular to an axis and extending along the cavity in a first direction along ... | 07/06/1993 |
| 5218269 | Negative glow discharge lamp having wire anode A glow discharge lamp includes a light-transmitting envelope containing a noble gas fill material. An anode electrode and a cathode electrode are spacedly located within the envelope. The anode electrode includes a single wire having a convoluted portion ... | 06/08/1993 |
| 5214351 | Discharge tube with glow and arc discharge electrodes A discharge tube includes a pair of electrode devices mounted within a discharge tube body in an opposed relation to each other, each of the pair of electrode devices including an arc discharge electrode and a glow discharge electrode. An electron-radiati... | 05/25/1993 |
| 5210468 | Gas-discharge display element driven by using seed discharge In a gas discharge display element according to the present invention, two pairs of electrodes are arranged in a discharge space of a display cell and one of the electrode pairs which forms a first discharge space between the first electrodes is driven su... | 05/11/1993 |
| 5111109 | Discharge tube for series gap use in ignition apparatus The discharge tube has an insulating tube formed into a hollow cylinder with one end open and the other closed. An anode electrode, which is formed as a flanged electrode, is hermetically fitted to the open end of the insulating tube and a cathode electro... | 05/05/1992 |
| 5061877 | Discharge tube capable of stable voltage discharge An arc discharge device is formed by two electrodes which are hermetically sealed within a glass tube filled with an inert gas. One electrode is cup shaped, with an open end. The other electrode enters the open end and approaches the bottom of the cup sha... | 10/29/1991 |
| 4996465 | Variable color lighting device A variable color lighting device employs two gases having different ionization potentials and sealed in a lamp tube. A cathode and anode are disposed inside the lamp tube opposed to each other and connected to a power supply source for varying applied vol... | 02/26/1991 |
| 4988917 | Hooked electrode for arc lamp A hooked arc discharge lamp electrode may be formed with electrodes slanting towards each other and towards the electrode roots. The hooking back of the electrode tips forms a gap between the electrode tip and the electrode shaft that prevents the arc fro... | 01/29/1991 |
| 4904900 | Glow discharge lamp A glow discharge lamp that includes a light transmitting envelope containing a noble gas fill material and a pair of electrodes disposed in the envelope. Lead-in wires couple to the electrodes and extend to and are hermetically sealed in the envelope. The... | 02/27/1990 |
| 4897577 | Electromechanically triggered spark gap switch A spark gap switch is disclosed. The spark gap switch comprises an anode and a cathode having facing surfaces separated by a predetermined gap, a trigger electrode located in the vicinity of such gap, and a piezoelectric generator connected between the tr... | 01/30/1990 |
| 4740729 | Plural-color discharge lamps A discharge lamp has an outer discharge tube and an inner discharge tube. The outer tube includes an envelope of glass enclosing an inert gas, a first electrode mounted within the envelope, a second electrode formed of a transparent film deposited on the ... | 04/26/1988 |
| 4542316 | Discharge lamps The invention relates to a single ended discharge lamp, such as a CID or CSI lamp having a bi-pin base. The base is such as to fit a socket suitable for lamps such as tungsten halogen filament lamps for which lower voltages are used and is adapted to make... | 09/17/1985 |
| 4490651 | Laser triggered high voltage rail gap switch The laser-triggered high voltage rail gap switch includes two parallel electrodes in a high pressure environment of SF6 and Ar. A pulsed UV laser directs a coherent beam parallel to the electrodes to initiate multichannel breakdown in the gap b... | 12/25/1984 |
| 4413204 | Non-uniform resistance cathode beam mode fluorescent lamp The lamp shown herein is a beam mode fluorescent lamp for general lighting applications. The lamp comprises a light transmitting envelope, having a phosphor coating on its inner surface, enclosing a thermionic cathode for emitting electrons and an anode f... | 11/01/1983 |
| 4401920 | Laser triggered high voltage rail gap switch The laser-triggered high voltage rail gap switch includes two parallel electrodes in a high pressure environment of SF6 and Ar. A pulsed UV laser directs a coherent beam parallel to the electrodes to initiate multichannel breakdown in the gap b... | 08/30/1983 |
| 4329622 | Low pressure gas discharge lamp with increased end illumination A low pressure gas discharge lamp is provided with a pair of high power incandescent electrodes to increase output illumination at the lamp ends. In an alternate construction, the electrodes are of high power, low emissivity and are electrically connected... | 05/11/1982 |
| 3983438 | Spark gap switch A spark gap switch having a central electrode positioned within an annular electrode in a dielectric liquid or saturated vapor flow line, with coaxial or parallel plate electrical connections to said electrodes.... | 09/28/1976 |
| 3957159 | Rotary storage unit A rotary storage and dispensing unit for various small items, especially designed for installation in a service van such as a panel truck, but eminently suitable for use in other environments, such as a retail store, service station or elsewhere. The unit... | 05/18/1976 |
