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| Number | Title | Issue Date |
| 7759849 | High-power discharge lamp A laser excitation lamp has a discharge tube and a hot cathode in the shape of a pin. The gas space is reduced in the region of the pin cathode. A method is also provided for production of the lamp, in which the gas space or the free cross section around the cathode... | 07/20/2010 |
| 7728494 | Light emission device and display device A light emission device and a display device having the light emission device are provided. The light emission device includes first and second substrates that are arranged to face each other, an electron emission unit that is located on a first surface of the first... | 06/01/2010 |
| 7714487 | Discharge lamp, method for manufacturing the discharge lamp electrode, lighting system It is possible to prolong service life of a discharge lamp of hot-cathode type and to reduce a diameter thereof. A discharge lamp 1 is provided with an electrode 3. The electrode 3 has a heater 4 made up a coil portion 4a, a... | 05/11/2010 |
| 7414356 | Cathode structure including barrier for preventing metal bridging from heater to emitter A cathode structure comprises a heater including a columnar ceramic body and a heating wire that is partially buried in the ceramic body, and a cathode unit disposed at a first end surface of the ceramic body. The heating wire leads out from a second end surface of ... | 08/19/2008 |
| 7141762 | System and method for information handling system peripheral heating element thermal failsafe Information handling system peripherals that use a heating element are protected from catastrophic failure due to overheating by a thermal failsafe associated with the heating element that fails the heating element if excessive temperatures are reached. For instance... | 11/28/2006 |
| 7048233 | Dual conduction heat dissipating system for a spacecraft A system dedicated to dissipating heat produced by amplifier tubes of a spacecraft comprises a radiating panel installed substantially parallel to the amplifier tubes and thermally coupled to them to radiate to the outside a portion of the heat that they produce, a ... | 05/23/2006 |
| 7012376 | Fluorescent lamp lighting device A fluorescent lamp lighting device includes a fluorescent light bulb having an electrode filament and an electronic lighting circuit substrate for lighting the fluorescent light bulb, wherein a capacitor connected in parallel with the fluorescent light bulb, a posit... | 03/14/2006 |
| 6967308 | System and method for information handling system peripheral heating element thermal failsafe Information handling system peripherals that use a heating element are protected from catastrophic failure due to overheating by a thermal failsafe associated with the heating element that fails the heating element if excessive temperatures are reached. For instance... | 11/22/2005 |
| 6858973 | Cooling an electronic tube The invention concerns the electronic amplifier tubes operating at radio-frequency. The electronic tube includes a long tubular sleeve containing an electron beam, a housing supporting the sleeve mechanically, and means to provide heat transfer from the sleeve to th... | 02/22/2005 |
| 6765339 | Infrared lamp and procedure for heating material to be processed An infrared lamp with a closed-off enveloping tube which encloses an emission source joined with contacts for a power supply in the form of a carbon ribbon which, extending in a direction of a long axis of the enveloping tube, determines an irradiation length of the... | 07/20/2004 |
| 6724160 | Ion-source neutralization with a hot-filament cathode-neutralizer In accordance with one embodiment of the present invention, the ion-beam apparatus takes the form of a gridless ion source with a hot-filament cathode-neutralizer, in which the hot filament is heated with a current from the cathode-neutralizer heater. The cathode-ne... | 04/20/2004 |
| 6552479 | Cathode ray tube having an improved heater A cathode ray tube has an electron gun including an indirectly heated cathode structure having a heater therein. The heater has a major heating portion formed of a spirally wound heating wire and two leg portions connected to opposite ends of the major he... | 04/22/2003 |
| 6469447 | Fluorescent lamp lighting apparatus A fluorescent lamp lighting apparatus includes a fluorescent light emitting tube; and an electronic lighting circuit for applying an electric current to the fluorescent light emitting tube. The electronic lighting circuit includes a pair of electrode fila... | 10/22/2002 |
| 6335590 | Cathode ray tube having an indirectly heated cathode provided with a heater having a structure which substantially prevents cracks in an insulating coating thereof A cathode ray tube include phosphor screen and an electron gun. The electron gun includes an indirectly heated cathode structure and plural grid electrodes arranged in axially spaced relationship. The cathode structure includes a base metal having an elec... | 01/01/2002 |
| 5977692 | Annulus fluorescent lamp with overheat protection An annulus fluorescent lamp comprises two annulus fluorescent tubes formed into shapes having different diameters and disposed substantially concentrically in substantially the same plane. Each of the annulus fluorescent tubes has a first end with an elec... | 11/02/1999 |
| 5844364 | Incandescent light-emitting assemblies A display has a matrix array of cells formed in a silicon plate and each containing a tungsten strip filament. The cells are filled with a halogen gas and are sealed by a double-glazed window with an infra-red reflecting filter to reflect heat back into t... | 12/01/1998 |
| 5818161 | Electron gun cathode holder with manufacturing holes The present invention provides an electron gun cathode for CRTs including a sleeve, on which a cap having an electromagnetic radiation matter applied on its upper face, is fixed. A sleeve supporter that supports and is merged with this sleeve is inserted ... | 10/06/1998 |
| 5444327 | Anisotropic pyrolytic graphite heater A heater for an indirectly heated vacuum tube cathode is formed of anisotropic pyrolytic graphite in which current passes through the graphite in the "c" direction.... | 08/22/1995 |
| 5402035 | Cathode structure for an electron tube An electron tube includes a cathode structure which has a hollow cylindrical sleeve having a heater mounted within the sleeve. There is a cathode cap disposed at the top of the sleeve to contain an electron emission material. A hollow cylindrical cathode ... | 03/28/1995 |
| 5289076 | Cathode structure for a cathode ray tube A cathode structure for supporting a cathode sleeve of a cathode ray tube includes a plurality of metal ribbons for supporting the cathode sleeve, where one end of a ribbon is fixed to an upper end of the cathode sleeve and the other end of the same ribbo... | 02/22/1994 |
| 5095241 | Cooling structure for cathode in electron beam generator In the electron beam generator cooling is provided by the electrical conductors of the incandescent cathode and control electrode which are configured as heat bridges and connected to cooling plates in the interior of the high-voltage insulator which in t... | 03/10/1992 |
| 5033072 | Self-limiting x-ray tube with flat cathode and stair-step focusing device Problems of thermal resistance of the anode of an x-ray tube are solved by constructing a flat cathode which is set within a stair-step focusing device. It is shown that, depending on the shape of this device, the heat output on the anode is limited by a ... | 07/16/1991 |
| 5027029 | Indirectly heated cathode assembly and its associated electron gun structure An indirectly heated type cathode assembly comprises a cathode sleeve having a heater within itself and having an emitter-impregnated type cathode disc fitted at one end, a plurality of straps connected at one end to a lower end portion of the cathode sle... | 06/25/1991 |
| 5015908 | Fast warm-up cathode for high power vacuum tubes In order to bring a high power vacuum tube to full power in a few seconds, it is necessary to heat the cathode quickly to 1100° C. In large tubes, prior art structures cannot be simply enlarged. A novel cathode structure in which the heater element is an... | 05/14/1991 |
| 5001385 | Electron beam apparatus with adjusting mechanism for a thermally emitting cathod tip In order to avoid undesired variations in the emission current intensity of a clamping device for a thermally emitting cathode tip constructed from pyrolytice graphite, a resilient coupling compensating the thermal stresses n the graphite is provided in a... | 03/19/1991 |
| 4972115 | Hot-cathode type low-pressure rare gas discharge lamp A hot-cathode type low-pressure rare gas discharge lamp comprises electrodes each of which operate as hot cathode during lighting and which is heated at a temperature ranging from 800° C. to 1200° C., whereby the lamp with an ordinary simple constructio... | 11/20/1990 |
| 4899078 | Thermionic hairpin cathode A thermionic hairpin cathode with a long operating life is made of a high melting metal wire, in which the temperature distribution along the legs is influenced either by locally increasing the radiation at a distance of 10 to 50% of the leg length from t... | 02/06/1990 |
| 4583023 | Electron beam heated thermionic cathode A preferably fully impregnated dispenser cathode member or the like forming part of an electron tube, electron beam generator or the like is initially heated by any suitable means to a temperature sufficient for low level electron emission from its rear s... | 04/15/1986 |
| 4551648 | Line cathode heater and support structure for a flat panel display device A heater and support structure for a line cathode includes heater electrodes and an S-shaped cathode support member arranged between the heater electrodes. The heater electrodes and the S-shaped support member have a higher resistance than the cathode and... | 11/05/1985 |
| 4546286 | Electron tube, in particular a transmitter tube In a cathode for a heavy-duty electron tube, the cathode wires (5) lying on the surface (11) of a cylinder between two rigidly constructed connector rings (7, 8) have the form of a surface line with changing pitch. The cathode wires are connected by a sup... | 10/08/1985 |
| 4409512 | Incandescent electric lamp with etalon type transparent heat mirror An incandescent lamp utilizing an etalon type transparent heat mirror on the lamp envelope for transmitting radiation in the visible range produced by the lamp filament and reflecting infrared thermal radiation back to the filament for increasing its temp... | 10/11/1983 |
| 4370588 | Cathode assembly A cathode assembly for cathode-ray tube which comprises a cathode sleeve with a blackened surface, a first cylindrical reflective member fixedly put on the top end portion of the cathode sleeve with a fixing point therebetween and having one end portion c... | 01/25/1983 |
| 4236097 | Ion source having fluid-cooled supply conductors Two current supply conductors connected to an emissive filament located within a vacuum enclosure are each constituted by a leak-tight tube formed of material other than a heavy metal which traverses the enclosure wall through a leak-tight bushing, and by... | 11/25/1980 |
| 4216405 | Large, indirectly heated, oxide-coated cathode for producing uniform plasmas A large cathode structure having a diameter on the order of 50 cm for producing uniform plasmas in a magnetic field. The cathode is oxide-coated and indirectly heated by a plurality of heater wires disposed in insulating tubes arranged parallel to each ot... | 08/05/1980 |
| 4189656 | Cathode structure for a high power laser A cathode structure for a high power laser is formed from a first sheet of a hard metallic material such as molybdenum, which is joined to a second sheet of the same material by brazing, these first two sheets being brazed to a support structure of the sa... | 02/19/1980 |
| 4009409 | Fast warmup cathode and method of making same A fast warmup cathode comprises a substrate of nickel or cathode nickel alloy having an outer and an inner surface. At least an area of the outer surface is formed to receive an electron emissive material. The inner surface is provided with a high heat ra... | 02/22/1977 |
| 3995187 | Electrode type glow discharge apparatus There is disclosed herein an electrode type glow discharge apparatus, such as that used for sputtering material from a cathode to provide a coating or the like on materials such as a substrate or substrates. Several exemplary embodiments are disclosed inv... | 11/30/1976 |
| 3974414 | Cathode ray tube cathode A fast warm up, die-drawn, low mass cathode cap is substantially cup-shaped having a closed end and an upstanding side wall integral therewith. The thickness of the side wall is less than that of the closed end, permitting more of the heater energy to be ... | 08/10/1976 |
| 3958146 | Fast warm up picture tube cathode cap having high heat emissivity surface on the interior thereof Performance of fast warm up cathodes can be improved by providing a black heat radiating surface on the interior of the cathode cap. A particular material can be nichrome which is a nickel chromium alloy. The cathode cap material can be selected from any ... | 05/18/1976 |
| 3947715 | Fast warm up cathode for a cathode ray tube A fast warm up cathode comprises a substantially cup-shaped top cap and a hollow cylindrical sleeve axially displaced from the top cap. Means are provided for joining the sleeve and the top cap into an integral unit. The means comprise a plurality of indi... | 03/30/1976 |
