Having Heating Or Cooling Means Patents (Class 34/254)
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Patent number: 8605121Abstract: A dynamic Gamma correction circuit, method thereof and a panel display apparatus are provided. The panel, display apparatus has a timing controller, a dynamic Gamma correction circuit, a display panel and a display driving circuit. The timing controller receives a first image data and then outputs a second image data and a timing control signal. The dynamic Gamma correction circuit receives and analyzes a distribution of gray levels of the first image data so as to dynamically correct and output a plurality of Gamma voltages. The display driving circuit electrically connects to the display panel, the timing controller and the dynamic Gamma correction circuit for receiving the second image data and the Gamma voltage so as to drive the display panel according to the timing control signal.Type: GrantFiled: October 21, 2005Date of Patent: December 10, 2013Assignee: Chunghwa Picture Tubes, Ltd.Inventors: Yi-Nan Chu, Kuan-Hung Liu
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Publication number: 20100043248Abstract: Methods for drying ceramic greenware in a manner that substantially compensates for otherwise non-uniform drying are disclosed. The methods generally include partially drying a piece (22) of greenware such that its end portions (22E) are drier than its middle portion (22C). The method also includes further drying the piece with radio-frequency (RF) radiation (88) generated by an electrode system (130) by conveying the piece through the electrode system. The electrode system has a main planar electrode (131E) with a longitudinal axis (AE), and an electrode concentrator (131C) formed thereon or attached thereto. The electrode concentrator has a central section (140) that runs in the direction of the longitudinal axis of the electrode and is configured so that when the piece is conveyed through the electrode system, the electrode system concentrates more RF radiation at the center portion of the piece than at the end portions of the piece.Type: ApplicationFiled: August 20, 2008Publication date: February 25, 2010Inventors: Ronald A. Cervoni, James Anthony Feldman, Michelle Yumiko Ronco
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Patent number: 7422719Abstract: An improvement in a process of forming ceramic articles comprising oil-based components or extrusion aids, the improvement including removing the oil-based components after drying and prior to firing by flowing a heated gas through the green ceramic honeycomb articles to evaporate and condense the oil-based components, with or without microwave radiation.Type: GrantFiled: October 17, 2003Date of Patent: September 9, 2008Assignee: Corning IncorporatedInventors: Yuk F. Chan, David S. Franzen, Jon A. Passmore, Mark A. Spetseris, Gary G. Squier, Elizabeth M. Vileno, Christopher S. Witte
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Patent number: 7320183Abstract: The invention provides a honeycomb formed structure drying method including causing undried honeycomb formed structures 10 placed on stands 12 to pass through a drying apparatus 1, thereby drying the undried honeycomb formed structures through high-frequency heating, to thereby form dried honeycomb formed structures 11; removing the dried honeycomb formed structures 11 from the stands 12; cooling the stands 12 which have been heated dried in the drying apparatus 1 are cooled to a temperature lower than the gelation temperature of the undried honeycomb formed structures 10; placing newly formed undried honeycomb formed structures 10 on the cooled stands 12; drying the undried honeycomb formed structures by passing through the drying apparatus 1; and repeating these operations. The honeycomb formed structure drying method prevents deformation such as warpage of partition walls of honeycomb formed structures during drying thereof.Type: GrantFiled: September 2, 2004Date of Patent: January 22, 2008Assignee: NGK Insulators, Ltd.Inventors: Takeyuki Ishii, Yuji Asai, Makoto Nakajo
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Patent number: 6914226Abstract: RF energy provided by electrodes positioned between a product is used to heat a product that exhibits a variable impedance during the heating process. As the product's impedance changes during the heating process, RF heating system impedance can be maintained constant by adjusting the distance between the electrodes, adjusting the impedance of a variable impedance device connected between the RF power source and an electrode, or a combination of electrode distance adjustment and impedance adjustment of the variable impedance device. The system is particularly applicable to the heating or pasteurization of bulk food products with multiple heating zones.Type: GrantFiled: December 5, 2001Date of Patent: July 5, 2005Assignee: Comdel, Inc.Inventor: Steven Thomas Ottaway
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Patent number: 6877251Abstract: A drying apparatus for a sheet-fed offset printing machine which dries sheets as they pass along a sheet path with forcefully directed air and/or heat. The drying apparatus of the present invention is adapted for more effective sheet drying by means of an electrode and a corresponding counter electrode, wherein the electrode is connected to a high-voltage source and a high voltage is applied to the electrode by the high-voltage source in dependence on the operation of the sheet-fed printing machine and/or the length of the sheets.Type: GrantFiled: June 12, 2001Date of Patent: April 12, 2005Assignee: MAN Roland Druckmaschinen AGInventor: Andreas Ihme
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Patent number: 6735883Abstract: Apparatus and a method for enhancing the effectiveness of a water spray (30) to cool and/or remoisten a web (12) of material. The apparatus includes a web dryer, preferably a flotation dryer (100), an electrostatic charge generating device (31) or devices, a water spray (30), an integrated power supply (20) to supply high voltage power to the charge device, and a drainage system (35) for handling excess liquid generated during the cooling and/or remoistening of the web. The cooling apparatus is capable of a modular arrangement to optimize spacing and facilitate the addition of cooling capacity where needed, such as with faster web speeds or heavier web weights. One or more temperature sensors can be used to optimize the amount of and rate of fluid fed to the spray nozzles. The spray nozzles and charge bars can be retractable with respect to the web to facilitate web-up procedures.Type: GrantFiled: July 15, 2002Date of Patent: May 18, 2004Assignees: Megtec Systems, Inc., Hurletron, Inc.Inventors: Michael P. Bria, Ed Salmon, David J. Welter, David M. Klein, Steven J. Siler
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Publication number: 20040045187Abstract: Apparatus and method for drying articles either free of applied heat or with a significantly reduced heating requirement. The apparatus includes a drying gas source is operative to dehumidify a moisture-laden gas, such as ambient air, flowing in the flow path to provide a drying gas to a drying chamber of a receptacle holding the articles. The drying gas removes moisture, or other cleansing liquid, from articles held in the chamber. The drying gas and moisture entrained in the drying gas are exhausted from the receptacle. The apparatus may optionally be equipped to provide a cleansing liquid, such as water, to the receptacle for mixing with the articles before the drying gas is supplied.Type: ApplicationFiled: September 10, 2002Publication date: March 11, 2004Applicant: Andrew CorporationInventors: John Michael Curry, Troy Inslee Vanderhoof, Brian Douglas Cross
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Patent number: 6651356Abstract: An air ionizing drying includes an elongated housing that has an interior, an inlet opening, and an elongated outlet opening. A microcontroller is positioned in the interior of the housing. A control panel is coupled to the housing and operationally coupled to the microcontroller. An intake conduit is positioned in the housing and extends from the intake opening. A heating assembly is positioned in the interior of the housing for receiving air passing through the intake conduit. The heating assembly is operationally coupled to the microcontroller. A manifold is environmentally coupled to the heating assembly for receiving air passing through the heating assembly. A fan assembly has a plurality of fans and is coupled to the manifold for drawing air through the manifold. An outlet conduit extends between the fan assembly and the outlet opening. An ionizing assembly is coupled to the outlet conduit for ionizing air passing through the outlet conduit.Type: GrantFiled: September 6, 2002Date of Patent: November 25, 2003Inventor: Alice C. Buehring
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Patent number: 6423955Abstract: A method and apparatus for dielectric drying is disclosed wherein a load to be heated positioned on a carrier the bottom of which provides a secondary electrode is moved with the carrier a dielectric heating chamber having a primary electrode positioned above load when said load on said carrier is moved into an operative position in the chamber. The carrier and load are elevated into heating position and this movement simultaneously connects the secondary electrode to ground, so that when high frequency power is applied to the primary electrode the circuit is made to dielectrically heat the load.Type: GrantFiled: July 13, 2001Date of Patent: July 23, 2002Assignee: Heatwave Technologies Inc.Inventors: Glenn Craig Blaker, Terry Albert Enegren, Yiu Kwan (Eugene) Ho, Scott Ronald Spencer
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Patent number: 6124584Abstract: A method of determining the moisture content of charge of wood having a moisture content below fiber saturation and being subjected to a Radio Frequency dielectric heating process to the degree required to control the process (e.g., terminate drying) by measuring the wood product package dimensions and monitoring the RF power KW and RF voltage KV being applied to the charge at the electrode(s) and further controlling (i.e., terminating) the process when the KW and KV being applied based on a pre-selected function indicates that the charge has reached a preselected moisture content.Type: GrantFiled: June 18, 1999Date of Patent: September 26, 2000Assignee: HeatWave Drying Systems IncInventors: Glenn Craig Blaker, Terry Albert Enegren, Gary Kenneth Kooznetsoff, Robert Lewis Zwick
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Patent number: 6076466Abstract: A web-offset printing press is provided with a first rotatable printing cylinder adapted to print a first image on a web by applying a heat-settable ink to the web, a second rotatable printing cylinder adapted to print a second image on the web, the second image being printed on the web subsequent to the first image being printed on the web by applying a heat-settable ink to the web, a drying station for drying the heat-settable ink applied to the web by the first and second rotatable printing cylinders by heating the web to an initial temperature, and a cooling station disposed adjacent the drying station, the cooling station receiving the web after the web has been heated by the drying station, the cooling station causing the initial temperature of the web to be reduced by at least about 20.degree. F.Type: GrantFiled: May 28, 1999Date of Patent: June 20, 2000Assignee: Hurletron, IncorporatedInventors: Steven J. Siler, David M. Klein
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Patent number: 5881647Abstract: A web-offset printing press is provided with a first rotatable printing cylinder adapted to print a first image on a web by applying a heat-settable ink to the web, a second rotatable printing cylinder adapted to print a second image on the web, the second image being printed on the web subsequent to the first image being printed on the web by applying a heat-settable ink to the web, a drying station for drying the heat-settable ink applied to the web by the first and second rotatable printing cylinders by heating the web to an initial temperature, and a cooling station disposed adjacent the drying station, the cooling station receiving the web after the web has been heated by the drying station, the cooling station causing the initial temperature of the web to be reduced by at least about 20.degree. F.Type: GrantFiled: August 29, 1997Date of Patent: March 16, 1999Assignee: Hurletron, IncorporatedInventors: Steven J. Siler, David M. Klein