With Heating Patents (Class 34/315)
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Patent number: 8584374Abstract: The invention relates to a method for removing water from a mixture containing at least one compound having at least one group reactive towards isocyanate and containing water, the mixture being applied to the surface of a rotating body A, the mixture flowing over the surface of the rotating body A to an outer region of the surface of the rotating body A and water evaporating from the mixture. In particular, this method is suitable for removing water from alcohols and amines.Type: GrantFiled: May 28, 2009Date of Patent: November 19, 2013Assignee: Construction Research & Technology GmbHInventors: Simone Klapdohr, Burkhard Walther, Helmut Mack, Zhizhong Cai, Laurent Marc, Jochen Mezger, Tobias Austermann, Silke Flakus
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Patent number: 7972520Abstract: The present invention relates to a process for operating a centrifuge which has a drive shaft used for loading, a drum which is connected to the drive shaft and has a drum casing and a drum base, a filter with a working region situated within the filter, an annular space formed between the filter and the drum casing, at least one drum base opening which is formed in the drum base and opens out into the annular space, and at least one swirl nozzle which is arranged in such a manner that it injects a fluid through the at least one drum base opening into the annular space.Type: GrantFiled: January 30, 2007Date of Patent: July 5, 2011Assignee: Fima Maschinenbau GmbHInventor: Joachim Schmid
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Patent number: 7877896Abstract: The present invention refers to a process for drying solid organic substances in aqueous phase including the steps of: feeding a continuous flow of such organic substances having a water content=50% by weight into a turbodrier having a cylindrical tubular body with horizontal axis, equipped with inlet and outlet openings, a heating jacket for bring the inner wall of the tubular body to a predetermined temperature, a bladed rotor extending inside the cylindrical tubular body (1) where it is made to rotate at speeds between 15 and 40 m/s, so as to disperse the continuous flow of organic substances into a flow of particles of organic substances; centrifuging the particles of organic substances against the inner wall of the turbodrier heated to a temperature above 130° C.Type: GrantFiled: September 27, 2007Date of Patent: February 1, 2011Assignee: Geoline S.R.L.Inventor: Guiseppina Cerea
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Publication number: 20090113754Abstract: The present invention refers to a process for drying solid organic substances in aqueous phase including the steps of: feeding a continuous flow of such organic substances having a water content=50% by weight into a turbodrier having a cylindrical tubular body with horizontal axis, equipped with inlet and outlet openings, a heating jacket for bring the inner wall of the tubular body to a predetermined temperature, a bladed rotor extending inside the cylindrical tubular body (1) where it is made to rotate at speeds between 15 and 40 m/s, so as to disperse the continuous flow of organic substances into a flow of particles of organic substances; centrifuging the particles of organic substances against the inner wall of the turbodrier heated to a temperature above 130° C.Type: ApplicationFiled: September 27, 2007Publication date: May 7, 2009Applicant: GEOLINE S.R.L.Inventor: Guiseppina Cerea
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Patent number: 7498175Abstract: A method is described for evaporating liquid samples contained in sample holders mounted within a chamber and rotated by the rotor during an evaporation process in which the pressure in the chamber is reduced below atmospheric and the sample holders are rotated at high speed so as to exert centrifugal force on the contents of the holders. Heat is supplied to elevate the temperature of the liquid component of the samples to assist in the evaporation process. The temperature of the sample material is continuously or regularly monitored during the evaporation process and temperature signals are transmitted to a remote computing means which is programmed to generate a control signal for controlling the supply of heat to the samples and controlling the evaporation process. The temperature may be sensed by a probe in a sample holder containing an evaporating liquid sample, or in an adjoining sample holder containing a buffer liquid.Type: GrantFiled: August 10, 2004Date of Patent: March 3, 2009Assignee: Genevac LimitedInventor: Michael Cole
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Patent number: 7204928Abstract: A process for the fractional distillation of crude oil, which comprises the steps of: feeding a continuous current of crude oil at 310–400° C. into a turbomixer comprising a tubular cylindrical body (1) provided with a rotor (9) formed with helically oriented paddles (10) and rotatably supported inside the body, along with a continuous current of steam; subjecting both currents to the mechanical action of the paddled rotor (9), so as to create a thin tubular dynamic turbulent layer, which is discharged and fed continuously into a fractioning column, at a predetermined height level in the column, to produce an upward-flowing vapor current and a downward-flowing liquid current therein; and optionally discharging the downward-flowing liquid current continuously from the column bottom, and feeding it continuously into the turbomixer in the same direction as the crude oil current.Type: GrantFiled: September 24, 2001Date of Patent: April 17, 2007Assignee: Vomm Chemipharma S.r.l.Inventor: Giuseppina Cerea
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Patent number: 7127828Abstract: A rotor that may be used by itself or in a processing machine for processing semiconductor wafers includes two pairs of combs. A lock down mechanism has a lock bar, temporarily engaged and moved by a loading/unloading robot, drives a retainer against the edges of the wafers, to better hold them in place during processing. Contamination via generation of particles is reduced. Combs on the rotor have a resilient strip. The lower edges of the wafers compress slightly into or deflect the resilient strip, when urged into place by the lock down mechanism.Type: GrantFiled: March 12, 2002Date of Patent: October 31, 2006Assignee: Semitool, Inc.Inventors: Robert Weaver, Ronald Schlagenhauser
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Patent number: 6993855Abstract: The present invention provides: a method for drying compacts containing water so as not to cause explosion and powdering; a method for reducing the compacts after being dried with great efficiency in a rotary-hearth-type reducing furnace; and a rotary-hearth-type metal reducing furnace. In the present invention, when compacts comprising powder containing metal oxide and carbon are dried, the critical value of a water evaporation rate, beyond which explosion occurs, is determined from the size and porosity of the compacts, then the water evaporation rate is controlled to a value not exceeding the critical value and, by so doing, the increase in the internal pressure of the compacts caused by the generation of water vapor is prevented. By the method, the explosion and cracking of the compacts are prevented.Type: GrantFiled: April 1, 2002Date of Patent: February 7, 2006Assignee: Nippon Steel CorporationInventors: Tetsuharu Ibaraki, Takashi Yamamoto, Yoichi Abe, Shigeki Takahashi, Kazunori Nagai
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Patent number: 6837969Abstract: A method for the concentration of liquid mixtures includes the step of causing a continuous stream of the liquid mixtures to flow in the form of a turbulent thin layer in contact with a heated wall; for that purpose, a continuous stream of liquid mixture is fed into a turbo-concentrator including a cylindrical tubular body (1), a heating jacket (4) and a bladed rotor (8) rotatably supported in the cylindrical tubular body (1), and is centrifuged to form a dynamic and tubular thin layer, the thin layer advancing inside the cylindrical tubular body (1) then being discharged continuously in the form of a stream of concentrated liquid mixture.Type: GrantFiled: October 17, 2000Date of Patent: January 4, 2005Assignee: Vomm Chemipharma S.r.l.Inventor: Corrado Vezzani
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Patent number: 6829843Abstract: The present invention provides a process for preparing vinylpyrrolidone polymer powder, which has high bulk density and favorable powder flowability and can be handled with ease. Specifically, the present invention relates to a process for preparing vinylpyrrolidone polymer powder, which comprises spraying an aqueous solution of a vinylpyrrolidone polymer into a drying tower using a disc atomizer and then drying.Type: GrantFiled: January 8, 2004Date of Patent: December 14, 2004Assignee: Dai-Ichi Kogyo Seiyaku Co., Ltd.Inventor: Keiichi Fujise
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Patent number: 6757987Abstract: A method for producing powder paints which comprises the steps of: a) preparing a paste comprising at least one thermosetting plastic resin, at least one curing agent, at least one pigment and water and making the paste flow in the form of a thin layer and under conditions of high turbulence in contact with a wall at a predetermined temperature; b) drying the paste by making it flow into a thin and turbulent layer in contact with a heated wall and optionally with a flow of heated gas.Type: GrantFiled: March 1, 2002Date of Patent: July 6, 2004Assignee: Vomm Chemipharma S.r.l.Inventor: Giuseppina Cerea
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Patent number: 6605474Abstract: A method is described for evaporating liquid samples contained in sample holders mounted within a chamber and rotated by the rotor during an evaporation process in which the pressure in the chamber is reduced below atmospheric and the sample holders are rotated at high speed so as to exert centrifugal force on the contents of the holders. Heat is supplied to elevate the temperature of the liquid component of the samples to assist in the evaporation process. The temperature of the sample material is continuously or regularly monitored during the evaporation process and temperature signals are transmitted to a remote computing means which is programmed to generate a control signal for controlling the supply of heat to the samples and controlling the evaporation process. The temperature may be sensed by a probe in a sample holder containing an evaporating liquid sample, or in an adjoining sample holder containing a buffer liquid.Type: GrantFiled: March 8, 2000Date of Patent: August 12, 2003Assignee: Genevac LimitedInventor: Michael Cole
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Patent number: 6460269Abstract: A wafer dryer for drying a wafer includes a chamber and a support adapted to support the wafer in the chamber. A spray nozzle is disposed in the chamber. A source gas supply tank is in fluid communication with the spray nozzle. At least one heater is operable to heat the chamber and the source gas supply tank. A pumping line is in fluid communication with the chamber. Drive means are operable to rotate the chamber and the spray nozzle. A method for drying a wafer using a wafer dryer including a chamber and a revolving spray nozzle includes the steps of: loading the wafer in the chamber; reducing the pressure in the chamber in which the wafer is loaded to a near vacuum state; creating a temperature controlled atmosphere in the pressure-reduced chamber to quicken drying of the wafer; and spraying the source gas on the wafer while rotating the chamber and the revolving spray nozzle in opposite directions in the pressure-reduced temperature controlled atmosphere.Type: GrantFiled: March 6, 2001Date of Patent: October 8, 2002Assignee: Samsung Electronics Co., Ltd.Inventors: Yong-joon Cho, Gyu-hwan Kwag
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Patent number: 6408536Abstract: The present invention relates to a process for drying protein crystals starting from an aqueous protein crystal suspension, which comprises drying the protein crystal suspension in a centrifugal dryer, where the protein crystals, after they have been filtered off from the protein crystal suspension, are brought into contact with a drying medium which consists of a mixture of water and a nonaqueous solvent which is miscible with water in any ratio and which has a lower vapor pressure than water. In the process, a drying gas which has been moistened with water is advantageously used. The protein crystal suspension is advantageously converted into a fluidized bed for the purpose of drying.Type: GrantFiled: January 13, 2000Date of Patent: June 25, 2002Assignee: Aventis Pharma Deutschland GmbHInventors: Rolf Deusser, Peter Kraemer, Horst Thurow
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Patent number: 6385862Abstract: An apparatus for use in drying articles defining internal cavities within a conventional clothes dryer includes a manifold and a plurality of tubes extending therefrom. Each of the tubes is provided with various, circumferentially spaced and longitudinally extending ribs. The apparatus is adapted to be mounted within the clothes dryer, with the manifold being seated about an exhaust outlet of the dryer and a shoe, glove or the like to be dried being placed over a respective tube. Air flow into the dryer is caused to flow along the tubes, between adjacent ribs, into an internal cavity of the article, then into the manifold through the tube, and finally out of the dryer through the exhaust outlet.Type: GrantFiled: June 6, 2001Date of Patent: May 14, 2002Assignee: Maytag CorporationInventor: Evan R. Vande Haar
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Patent number: 6378228Abstract: To monitor the linen drying in a clothes drier, the residual moisture level of the linen inside the drier is measured and compared to a maximum permissible threshold, which is adjustable and authorization to open the door (14) of the drier is not allowed until the moisture level measured is below said threshold.Type: GrantFiled: November 20, 2000Date of Patent: April 30, 2002Assignee: Electrolux Systemes de BlanchisserieInventor: André Maziere
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Patent number: 6212792Abstract: A basket or dryer liner that has the usual basket shape, i.e, generally cylindrical, but is resiliently compressible or deformable along multiple axes for reshaping into irregular shapes. It has perforate bottom wall and side walls and an open top and is generally symmetrical about x, y, and z axes that are orthogonal to each other. The basket may be manually compressed alone these axes and then allowed to return to its normal shape when released. Thus, it has a non-compressed, relaxed state wherein it has maximum exterior dimensions and can stand-alone and serve the normal functions of a basket. The basket also has a compressed condition wherein at least certain of the dimensions of the basket are less than said maximum dimensions so that it can be fitted into a dryer, allowed to expand, and serve as a dryer liner. Wet clothes and other items can then be placed in the basket through the dryer opening in the normal manner.Type: GrantFiled: July 1, 1999Date of Patent: April 10, 2001Inventor: Rosalie J. Bier
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Patent number: 6199298Abstract: A process for drying semiconductor wafers includes loading a wafer wetted with rinsing fluid into a rotor and orientating the wafer along a substantially vertical plane. A gas saturated with a solvent vapor is passed over the wafer surfaces until condensation forms on the wafer and displaces residual fluid. The rotation of the wafer by the rotor at a first rotation speed to aids the flushing and displacement of residual fluid. The passage of a dry gas over the wafer combined with the rotation of the wafer at a second rotation speed promotes drying of solvent condensed on the wafer. The first rotation speed is limited to a rate that does not cause the condensed solvent film to evaporate as quickly as it forms. The second rotation speed may exceed that of the first rotation speed to complete the drying of the wafer. The rotor and process chamber are optionally pre-saturated with condensed solvent vapor prior to the introduction of a wafer to hasten the drying process.Type: GrantFiled: October 6, 1999Date of Patent: March 13, 2001Assignee: Semitool, Inc.Inventor: Eric J. Bergman
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Patent number: 6161305Abstract: A process and apparatus for mechanical and thermal dewatering of solid-liquid mixture, particularly industrial and sewage sludges, feeds the sludge to a dewatering device to produce a dewatered material which is then dried in a thermal drier. The dewatered sludge is reduced to a granulate-like structure without any intermediate stage and is then dried immediately afterwards. An apparatus for implementing the process includes a mechanical dewatering device being directly connected to a feed unit to produce a granulate-like structure and which is permanently connected to the thermal drier.Type: GrantFiled: February 24, 1999Date of Patent: December 19, 2000Assignee: Andritz-Patentverwaltungs-Gesellschaft m.b.H.Inventors: Christian Maier, Erwin Brunnmair
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Patent number: 6122837Abstract: A dryer for processing semiconductor substrates which rotates a carrier containing the substrates within a housing in combination with a bubbler which heats and directs a gas containing a water tension reducing vapor to the housing to contact the substrates and thereby hasten drying, decrease water marking, and decrease contamination.Type: GrantFiled: June 24, 1998Date of Patent: September 26, 2000Assignee: Verteq, Inc.Inventors: Michael B. Olesen, Mario E. Bran
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Patent number: 5891347Abstract: Centrifugal filtration capable of improving recovery of crystal in a baskey. The basket is so arranged that a central axis thereof is inclined with respect to a horizontal direction to obliqely downwardly orientate a bottom wall of the basket. A crystal recovery auction pipe is arranged which includes a pivotally movable section pivotally moved in the basket, of which a distal end is advanced into crystal in the basket. Crystal in the basket is recovered by suction through the distal end of the suction pipe, which is ultimately displaced to a corner of the basket between a lowermost portion of a peripheral wall of the basket and a bottom wall thereof. This permits crystal collected to a lowermost section of the basket to be substantially recovered by suction through the suction pipe, to thereby improve crystal recovery.Type: GrantFiled: January 14, 1997Date of Patent: April 6, 1999Assignee: Matsumoto Machine Mfg. Co., Ltd.Inventor: Takashi Matsumoto
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Patent number: 5617649Abstract: A device and method for drying a fluorescent material are provided. The device includes a container having a predetermined space for containing a fluorescent material, a first driver for rotating the container, a heater for heating the container, a vacuum unit for creating a partial vacuum in the container to discharge moist air from the container, a supplier for supplying dry air to the container, an exhausting unit for exhausting the fluorescent material dried in the container, and a controller for controlling the respective device and the first dryer. The drying method includes the steps of placing a cleaned fluorescent material into a dryer, heating the dryer while rotating the dryer, injecting dry air into the dryer and exhausting moist air from the dryer, and vacuum-transferring the fluorescent material from the dryer to a predetermined storage tank.Type: GrantFiled: May 7, 1996Date of Patent: April 8, 1997Assignee: Samsung Display Devices Co., Ltd.Inventor: Won-geun Joo