Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 8134286 | Discharge tube, ferrule, lighting device, display device and television receiver In a discharge tube, a conductive ferrule is provided on an end portion of a glass tube. The ferrule includes a body that is to be mounted to the outer circumference of the glass tube and has a contact portion to be electrically conductively fixed to a relay connect... | 03/13/2012 |
| 7382088 | Electron source and image display apparatus To implement an electrode structure which brings about extinction of arc quickly in a reliable manner without maintaining discharge current, and provide an electron source and image display apparatus equipped with the electrode structure. Device electrodes | 06/03/2008 |
| 7378798 | Electric lamp An electric lamp has a lamp vessel accommodating an electric element. The element is connected to current conductors including molybdenum portions which have a coating of material chosen from the group of chromium-manganese, chromium-cobalt, chromium-iron and chromi... | 05/27/2008 |
| 7304421 | Power supply system for a lamp and lamp having this power supply system The subject matter of the disclosure is a power supply system for a lamp, having foils, which are embedded in a gas-tight manner in a pinch seal of the lamp and on which are arranged, in each case on two opposing narrow sides, an inner power supply line and an outer... | 12/04/2007 |
| 7268425 | Thermally enhanced electronic flip-chip packaging with external-connector-side die and method A method and apparatus for making a package having improved heat conduction characteristics and high frequency response. A relatively thick package substrate, such as copper, has a wiring layer bonded to one face, leaving the opposite face exposed, for example, to b... | 09/11/2007 |
| 7218046 | Unitized chemically etched tungsten electrode A method of making a unitized tungsten electrode which exhibits superior mechanical and electrical properties which includes providing a length of cylindrical cut stock having a predetermined diameter and length. The stock is ground to form a rough unfinished electr... | 05/15/2007 |
| 7170230 | Mercury-free arc tube for a discharge lamp A mercury-free arc tube for a discharge lamp has a closed chamber filled with rare gas and a metal halide containing at least Na halide or Sc halide and electrodes disposed on both end portions of the closed chamber so as to be opposed to each other, wherein the ele... | 01/30/2007 |
| 7107676 | One piece foliated leads for sealing in light sources Manufacturing equipment and manufacturing process steps that improve upon prior art processes for the manufacturing of filament tube and arc tube light sources, their components and subassemblies, and lamps employing said light sources. A double ended, tipless filam... | 09/19/2006 |
| 7106003 | Dielectric barrier discharge lamp with pinch seal A dielectric barrier discharge lamp with a discharge vessel (1) has at least one inner electrode (5a; 5b) which is covered with a dielectric layer (6a; 6b) and is arranged on the inner side of the discha... | 09/12/2006 |
| 7098587 | Preventing junction leakage in field emission devices An apparatus and a method for stabilizing the threshold voltage in an active matrix field emission device are disclosed. The method includes the formation of radiation-blocking elements between a cathodoluminescent display screen of the FED and semiconductor junctio... | 08/29/2006 |
| 7097529 | Method for producing a high pressure discharge lamp, with sealing portion having first and second glass members A glass pipe 80 for a discharge lamp is prepared which includes a luminous bulb portion 1′ that will be formed into a luminous bulb of a high pressure discharge lamp and a side tube portion 2′. Subsequently, a glass member 70 made of ... | 08/29/2006 |
| 7097528 | Method for producing a high pressure discharge lamp, with sealing portion having first and second glass members A high pressure discharge lamp 100 comprises a luminous bulb 1 enclosing a luminous substance 6 inside and a sealing portion 2 for retaining the airtightness of the luminous bulb 1. The sealing portion 2 has a first glass po... | 08/29/2006 |
| 7057347 | Electrode, manufacturing method thereof, and metal vapor discharge lamp A first electrode part in a rod shape is placed on an upper side, and a second electrode part in a rod shape having a higher melting point than that of the first electrode part is placed on a lower side, so that ends of the first and second electrode parts are broug... | 06/06/2006 |
| 7047635 | Connecting material and connecting method A connecting material can form a detachable connecting structure. According to the connecting material, a connecting portion between a certain object and another object can be more readily formed, and the certain object can be more readily detached from the another ... | 05/23/2006 |
| 7038386 | High-pressure discharge lamp and fabrication method of the same A high-pressure discharge lamp includes a bulb that is made from glass in which a discharge space has been formed and a pair of electrode assemblies that are sealed in the end portions of this bulb. The electrode assemblies are each provided with an electrode rod fo... | 05/02/2006 |
| 6998776 | Glass package that is hermetically sealed with a frit and method of fabrication A hermetically sealed glass package and method for manufacturing the hermetically sealed glass package are described herein using an OLED display as an example. Basically, the hermetically sealed OLED display is manufactured by providing a first substrate plate and ... | 02/14/2006 |
| 6995514 | Electrode system for a metal halide lamp, and associated lamp The electrode system for a metal halide lamp with ceramic discharge vessel (4) comprises an electrically conductive leadthrough (9, 10) and an electrode connected thereto, the leadthrough having a fusible region with respect to the electrode, in which ... | 02/07/2006 |
| 6992430 | Electric discharge lamp An electric discharge lamp comprising: a light-transmissive ceramic lamp vessel (1); a first and a second current conductor (2,3) entering the lamp vessel (1), and each supporting an electrode (4,5) in the lamp vessel (1); an ioniz... | 01/31/2006 |
| 6931709 | Method of joining non-metallic and metallic components A method of attaching a first member of one of quartz and a ceramic to a metal member. The method includes creating a hole in the metal member, the hole being smaller in size than the size of the first member over a temperature range, heating the metal member to a t... | 08/23/2005 |
| 6930442 | Display device A display device includes a plurality of emitting tubes constituted by elongated tubes each having a phosphor layer disposed and a discharge gas enclosed inside, a supporter for supporting the plurality of emitting tubes while making contact therewith, and a plurali... | 08/16/2005 |
| 6918808 | Arc tube for discharge lamp and method for producing the same A discharge lamp arc tube in which a pair of electrode assemblies each having an electrode rod, a sheet of molybdenum foil and a lead wire integrally series-connected to one another have respective molybdenum foil containing regions pinch-sealed with glass, and elec... | 07/19/2005 |
| 6891332 | Arc tube capable of preventing occurrence of leak due to cracks and manufacturing method therefore An arc tube, which is capable of prolonging the life thereof by preventing occurrence of a leak caused from a crack of an arc-tube body, has the average surface roughness of each of outer surfaces 26Aa and 26Ba of tungsten electrodes 26A and ... | 05/10/2005 |
| 6856091 | Seal for ceramic metal halide discharge lamp chamber A discharge chamber for an arc discharge metal halide lamp having light permeable walls bounding a discharge region in which ionizable materials are provided with at least one electrode accommodation opening therein extending along a selected path between that disch... | 02/15/2005 |
| 6853119 | Double layer electrode coil for a HID lamp and method of making the electrode coil A double-layer electrode coil for a high intensity discharge (HID) lamp and a method of making the electrode coil are provided. A more stable layer of coils is made by front winding, instead of back winding, the layers of wire. The second layer of wire is entirely w... | 02/08/2005 |
| 6686694 | Method for marking quartz glass lamps and quartz glass lamps produced using this method The present invention relates to a method for marking quartz glass lamps having at least one fusible metal foil 10, 12, which is surrounded by quartz glass, for supplying electric voltage to luminous means 15 arranged in the interior chamber of a lamp ves... | 02/03/2004 |
| 6664733 | Electrode for discharge tube, and discharge tube using it A discharge tube is comprised of a glass bulb, a cathode, and an anode. Impregnating porous tungsten with barium makes the cathode tip portion. A clearance between the end face of a lead rod and the end face of the cathode tip portion is filled with a mol... | 12/16/2003 |
| 6639361 | Metal halide lamp A metal halide lamp using a ceramic arc tube in which less lamp flickering occurs, the flux maintenance factor during the lifetime is high and the possibility of lamp break-off is low. The metal halide lamp includes an arc tube 1 in which iodide pellet of... | 10/28/2003 |
| 6590342 | Metal halide lamp having halide resistant current conductors The electric lamp has a ceramic lamp vessel (1) having a filling of rare gas and metal halide. Current conductors (2, 3) which support electrodes (4, 5) inside the discharge vessel (1) enter the discharge vessel (1) in a gastight manner through a ceramic ... | 07/08/2003 |
| 6590341 | Discharge lamp with foil-stiffening crease A discharge lamp having a pair of electrodes (2) within a light-emitting tube (30) with air-tight seals (31) formed covering a metallic foil (1) is bonded to each electrode (2). To stiffen the metallic foil, it is provided with a length-wise crease (M).... | 07/08/2003 |
| 6583536 | Multiple, sequential filament lamp An improvement to the current-carrying components of a lamp includes two filaments connected to two different electrodes and one common electrode, and a switch for directing current through the secondary filament upon the failure of the primary filament. ... | 06/24/2003 |
| 6555750 | Electrical cable connector By providing two integrated components, an outer housing and an inner sleeve member, with the inner sleeve member being securely mounted to the outer housing in a manner which prevents its separation from the housing, an efficient, easily manufactured and... | 04/29/2003 |
| 6548959 | Discharge tube with substantially exposed cathode tip portion for use as a light source In order to meet various requirements for discharge tubes for use as light sources, including easiness of production, stability of discharge, long lifetime, etc. without any contradiction between them, a discharge tube of the present invention involves an... | 04/15/2003 |
| 6426592 | High-voltage discharge lamp with cylindrical member to mitigate thermal stress A high-voltage discharge lamp has a bulb made of quartz glass, a pair of electrodes and molybdenum foils, wherein the pair of electrodes are arranged so as to oppose each other and are joined to respective ones of the molybdenum foils, and the bulb and mo... | 07/30/2002 |
| 6380676 | Discharge lamp with end of life arc extinguishing structure A discharge lamp comprises a discharge tube having discharge electrodes (10) at both ends thereof. Two lead wires (8) are connected to each of said electrodes (10) that lead to the outside atmosphere from the inside of the discharge tube. The discharge tu... | 04/30/2002 |
| 6307320 | High pressure discharge lamp with bent tip electrodes A high pressure discharge lamp in which the total length of the discharge tube can be shortened without changing the discharge length of the electrodes by the ends of a fused silica glass discharge tube having hermetically sealed portions being bent essen... | 10/23/2001 |
| 6229257 | Fluorescent lamp sealed with glass bead A fluorescent lamp includes a glass bulb whose inner surface is coated with a fluorescent substance, a glass bead attached to an end of the glass bulb so as to seal the glass bulb, an exhaust tube provided in the glass bead and sealed, a filament coil arr... | 05/08/2001 |
| 6191526 | Electric lamp having a current lead-in wire with a flattened U-shaped end segment The invention relates to the fastening of incandescent coil filaments to current lead-in wires in electric lamps. One end (41) of the current lead-in wires is flattened and U-shaped. The U-shaped segment (41) of the current lead-in wire forms a gap-like s... | 02/20/2001 |
| 6168289 | Straight fluorescent tube that has an electronic ballast housed in the sockets on both sides Fluorescent lighting tubes which incorporate an electronic ballast housed in the sleeves or sockets at each end of the lighting tube. The sockets electrically connect the pins at each end of the fluorescent tube to one another and contain a plurality of e... | 01/02/2001 |
| 6087770 | Image forming apparatus and a method for manufacturing the same An image forming apparatus, according to the present invention, comprises a first substrate whereon are provided a functional element and electric wiring that is connected to the functional element, and a second substrate whereon is an area where an image... | 07/11/2000 |
| 6078140 | Electric lamp having seals with metal foil therein The electric lamp has a vacuumtight seal (4) on the longitudinal axis (2) of a glass lamp vessel (1). An internal (12) and an external conductor (13) each have an end (14) inside the seal (4) and extend through a common axial region (5) of the seal (4) in... | 06/20/2000 |
