Microwave Energy Patents (Class 34/259)
  • Patent number: 9810480
    Abstract: Methods and apparatus for processing phyllosilicate minerals are provided. In some embodiments, the phyllosilicate mineral is clay. In some embodiments, the phyllosilicate mineral is bentonite clay.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: November 7, 2017
    Assignee: Targeted Microwave Solutions Inc.
    Inventors: Steve E. Sears, Larry Palmer
  • Patent number: 9585401
    Abstract: A conveyor oven according to some embodiments has a first mode and a second mode of operation and includes a tunnel in which food is cooked, a conveyor for moving the food through the tunnel, a first set and a second set of one or more burners, each set configured to generate heat for the tunnel, and a controller responsive to the detection of an absence of food in the tunnel, the controller configured to change operation of the first set of one or more burners and the second set of one or more burners from the first mode of operation to the second mode of operation based at least in part upon the detection of the absence of food product from the tunnel.
    Type: Grant
    Filed: August 26, 2014
    Date of Patent: March 7, 2017
    Assignee: THE MIDDLEBY CORPORATION
    Inventors: John H. Wiker, Mohan K. Panicker, William S. Schjerven, Sr.
  • Patent number: 9440373
    Abstract: Tray assemblies and methods for manufacturing ceramic articles are provided. In one embodiment, a tray assembly includes a tray body having a supporting surface operable to support a ceramic article for passage through a microwave drying apparatus during a microwave drying process and a microwave coupling cover associated with the tray body. The microwave coupling cover envelopes at least a portion of the ceramic article during the microwave drying process. The microwave coupling cover has a dielectric property such that a greater percentage of microwave energy is coupled into the ceramic article with the microwave coupling cover present during the microwave drying process than with the microwave coupling cover not present. Methods may include rotating the ceramic article when the ceramic article is about 40%-60 dry.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: September 13, 2016
    Assignee: Corning Incorporated
    Inventors: James Anthony Feldman, Jacob George, Nadezhda Pavlovna Paramonova, Michael Dean Seymour
  • Patent number: 9038284
    Abstract: Systems and methods for efficient microwave drying of extruded honeycomb structures are disclosed. The methods include conveying first and second sets of honeycomb structures in opposite directions through multiple applicator cavities. Each honeycomb structure has a moisture content MC, and the honeycomb structures within each cavity define an average moisture content MCA between 40% and 60% therein. The methods include irradiating the first and second sets of honeycomb structures within the cavities with microwave radiation having an amount of input microwave power PI that results in an amount of reflected microwave power PR from the honeycomb structures, where PR<(0.2)PI. This allows for a relatively high microwave power to be maintained in each cavity. Batch microwave drying methods are also disclosed.
    Type: Grant
    Filed: November 29, 2011
    Date of Patent: May 26, 2015
    Assignee: CORNING INCORPORATED
    Inventors: James Anthony Feldman, Jacob George, Amit Halder, Nadezhda Pavlovna Paramonova
  • Publication number: 20150128442
    Abstract: An apparatus and method for microwave vacuum-drying of organic materials such as food products. The dehydration apparatus (20) has a vacuum chamber (24) with an input module (28) at one end and a discharge module (32) at the other. The vacuum chamber has access doors (80) spaced between the input end (30) and the discharge end (34) which provide operator and maintenance access. Microwave generators (86) are mounted on each access door and arranged to radiate through a microwave chamber and microwave-transparent window on the access door into the vacuum chamber. A pair of rollers (60) in the vacuum chamber rotates the container of organic material (112) about a horizontal axis, and a chain drive (64) pulls the containers along the rollers through the vacuum chamber.
    Type: Application
    Filed: December 7, 2012
    Publication date: May 14, 2015
    Applicant: ENWAVE CORPORATION
    Inventors: Timothy D. Durance, Jun Fu, Li Bing Cao
  • Publication number: 20140328867
    Abstract: An apparatus (20) for dehydrating organic material in batches has a processing unit (22) having a microwave-vacuum chamber (34), an input module (28) and an output module (30), with a conveyor (54) for moving the material through the chamber on a microwave-transparent window. A material reservoir (68) is arranged to receive the material exiting the output module. A conveyor (78) external to the vacuum chamber conveys material that exits the reservoir to the input module. The vacuum chamber (34), reservoir (68) and external conveyor (78) are in fluid communication to operate at a common, reduced pressure. The organic material passes through the vacuum chamber multiple times to equilibrate and dry to the desired degree.
    Type: Application
    Filed: July 12, 2012
    Publication date: November 6, 2014
    Inventors: Jun Fu, Timothy D. Durance, Parastoo Yaghmaee
  • Patent number: 8877469
    Abstract: A method for producing foams containing biological materials is described. A solid or semi-solid paste is formed by combining biologically active material with a protecting agent in an aqueous solvent. The paste formed is allowed to set, and may optionally then be apportioned into the desired shape. The paste may be frozen to allow formation of ice crystals to act as porogens. Subsequently, the paste is exposed to travelling wave radiant energy under vacuum (t-REV) for drying. This causes the solvent to boil off, leaving dried material containing the biologically active material, the protecting agent, and a relatively low water content. Biologically active materials which can be used include cells, microbial cultures, live attenuated microbes, probiotics, yeasts, enzymes, vaccines, proteins, and any heat-sensitive biological material. By directing energy via a travelling wave through a sample, good control of temperature and process conditions can be achieved.
    Type: Grant
    Filed: February 1, 2007
    Date of Patent: November 4, 2014
    Assignee: Enwave Corporation
    Inventors: Timothy D. Durance, Parastoo Yaghmaee, Shafique Ahmad, Guopeng Zhang
  • Patent number: 8826562
    Abstract: A former unit (20) as a drying apparatus includes a horizontally oriented main casing (21). Space inside the main casing (21) is divided into four irradiation zones (31-34). Each of the irradiation zones (31-34) contains one tray unit (10). Each of the tray units (10) contains four metallic transfer trays (14) aligned in the vertical direction, with a distance between the transfer trays (14) set to half a wavelength of a microwave (?/2) or larger. Each of the transfer trays (14) carries wet PTFE powder. In the irradiation zones (31-34), the tray units (10) sequentially move from the first irradiation zone (31) to the fourth irradiation zone (34), and the microwave is laterally applied to the transfer trays (14).
    Type: Grant
    Filed: February 27, 2008
    Date of Patent: September 9, 2014
    Assignee: Daikin Industries, Ltd.
    Inventors: Shinichirou Kobayashi, Tomonori Kikuno, Teruo Kido, Yasuhiro Utsumi, Takayuki Tanaka, Satoshi Tokuno
  • Patent number: 8782921
    Abstract: A method of making a honeycomb structure comprises the step of providing a honeycomb body including a first end face and a second end face, wherein the honeycomb body includes a ceramic and/or a ceramic-forming material. The method further includes the step of providing a first non-metallic extension and a second non-metallic extension along a longitudinal axis of the honeycomb body. The first non-metallic extension is positioned with respect to the first end face and the second non-metallic extension is positioned with respect to the second end face. The method further includes the step of exposing the honeycomb body and the non-metallic extensions to microwaves to dry the honeycomb body.
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: July 22, 2014
    Assignee: Corning Incorporated
    Inventors: Jesus Humberto Armenta-Pitsakis, Valerie Jean Clark, James Anthony Feldman, Jacob George, Amit Halder, Brett Alan Terwilliger
  • Publication number: 20140144040
    Abstract: Methods of reducing transient temperature variations in a microwave drying process for drying partially dried ceramic logs are disclosed. The methods include sending the logs through an output microwave dryer having multiple applicators, each applicator being capable of generating an adjustable amount of microwave power. A transient drying model is employed based on microwave-drying process parameters to determine a predicted log exit temperature at the output end of the output microwave dryer. The exit temperature of each log is measured. The transient drying model, which is used to control the amount of microwave power applied, is adjusted based on a difference between the predicted and measured log exit temperatures.
    Type: Application
    Filed: November 27, 2012
    Publication date: May 29, 2014
    Applicant: CORNING INCORPORATED
    Inventors: Parasuram Padmanabhan Harihara, Meng Li
  • Patent number: 8729436
    Abstract: A method and system for drying a honeycomb structure having an original liquid vehicle content includes exposing the honeycomb structure to a first electromagnetic radiation source until the liquid vehicle content is between about 20% and about 60% of the original liquid vehicle content, exposing the honeycomb structure to a second electromagnetic radiation source different from the first electromagnetic radiation source until the liquid vehicle content is between about 0% and about 30% of the original liquid vehicle content, and exposing the honeycomb structure to convection heating until the liquid vehicle content is between about 0% and about 30% of the original liquid vehicle content.
    Type: Grant
    Filed: May 28, 2009
    Date of Patent: May 20, 2014
    Assignee: Corning Incorporated
    Inventors: Paul Andreas Adrian, Rebecca Lynn Burt, James Anthony Feldman, Elizabeth Marie Vileno
  • Patent number: 8673156
    Abstract: The present invention relates to an apparatus for removing liquid from a suspension. More particularly, the present invention relates to a filtration apparatus using vacuum pressure, compressed air and radiant heat to facilitate extraction of water from a suspension and an air flow within the vacuum chamber to remove the evaporate as a cost-efficient and resource-efficient means of filtering and drying solids in large volumes of suspension to remove interstitial and chemically bound liquids, resulting in up to 100% total solids.
    Type: Grant
    Filed: October 2, 2009
    Date of Patent: March 18, 2014
    Assignee: Gryphon Environmental, LLC
    Inventors: William Tid Smith Griffin, Joshua Michael-James DeArmond
  • Patent number: 8663366
    Abstract: The invention is directed to a device that removes humidity/moisture from a container or enclosed area. The device includes a plastic housing having a cavity chamber. A silica desiccant is in the cavity chamber. A color indicator indicates if the silica desiccant is active. A polyester screen/filter is heat welded to the raised circles on the bottom inside of the cavity chamber of the plastic housing. The polyester screen/filter ensures that the silica desiccant stays inside the housing even when the device is reactivated in a microwave or oven. A cover with a number of holes may be placed over the screen/filter and the screen/filter may be welded to the cover. The cover and housing may be made out of food safe polypropylene.
    Type: Grant
    Filed: September 21, 2010
    Date of Patent: March 4, 2014
    Inventor: Jeffrey Brent Collins
  • Patent number: 8640357
    Abstract: The drying oven of the present invention comprises a holey plastic plate that can make planetary rotation. The drying mechanisms may consist of classical resistance heaters, blowing heaters and/or coolers, and ultraviolet, infrared and microwave radiation sources in horizontal, vertical or intermediate angle arrangements. There is an absorbent material in a reservoir so as to absorb the excess energy transmitted by the system. The present system completes the drying procedure quickly with full automatization within a standard period without deteriorating the sample and reveals a product which is ready to further processing.
    Type: Grant
    Filed: March 23, 2010
    Date of Patent: February 4, 2014
    Inventor: Hasan Huseyin Engin
  • Publication number: 20140000123
    Abstract: A method of making a honeycomb structure comprises the step of providing a honeycomb body including a first end face and a second end face, wherein the honeycomb body includes a ceramic and/or a ceramic-forming material. The method further includes the step of providing a first non-metallic extension and a second non-metallic extension along a longitudinal axis of the honeycomb body. The first non-metallic extension is positioned with respect to the first end face and the second non-metallic extension is positioned with respect to the second end face. The method further includes the step of exposing the honeycomb body and the non-metallic extensions to microwaves to dry the honeycomb body.
    Type: Application
    Filed: June 28, 2012
    Publication date: January 2, 2014
    Inventors: Jesus Humberto Armenta-Pitsakis, Valerie Jean Clark, James Anthony Feldman, Jacob George, Amit Halder, Brett Alan Terwilliger
  • Publication number: 20130318811
    Abstract: Microwave drying of ceramic honeycomb logs using a customizable cover that can take the form of a flexible wrap or a rigid cover is disclosed. The cover can be in the form of a wrap disposed directly in contact with the leading edge of the log surface. The cover can also be a rigid cover disposed adjacent but not in contact with the leading edge of the log surface. At least a portion of the trailing edge of the log can remain uncovered either by having windows in the wrap or by the rigid cover only covering the leading edge of the log surface. The customizable cover can be configured to compensate for log shape deformities as well as or in addition to the adverse effect on log shape cause by the drying differential created by passing a log through a microwave drying station leading-edge first.
    Type: Application
    Filed: May 29, 2012
    Publication date: December 5, 2013
    Inventors: Colby William Audinwood, Brett Alan Terwilliger, David Robertson Treacy, JR., Chauncey James Watches
  • Patent number: 8590173
    Abstract: A microwave source is used in conjunction with a waveguide and microwave window aperture to direct controlled microwave energy into the housing of a filter. The microwave energy will heat and vaporize any fluid present on the filter material, preventing the filter from “wetting” and becoming unusable.
    Type: Grant
    Filed: March 1, 2011
    Date of Patent: November 26, 2013
    Inventor: Tobi D. Mengle
  • Patent number: 8561314
    Abstract: An installation for drying organic matter, especially kitchen and food wastes or other biological matter, including matter that contains packaging residues, napkins, straws or the like. The installation comprises the following components: (a) a vacuum mixer (M) having a closable charging opening for introducing the organic matter and a closable discharge opening, disposed at the bottom or laterally towards the bottom, for the dried matter, (b) at least one vacuum pump (VP) for evacuating the air in the mixer to generate the vacuum, the pump being connected to at least one evacuation tube mounted above the maximum filling level in the housing of the mixer (M), (c) a heater (H) for heating the organic matter, (d) at least one condenser (K), connected to the air evacuation duct (AL) of the vacuum pump (VP) and having a cooling unit (KA) connected thereto to condense the evacuated air, and (e) a discharge duct (AW) for the condensate obtained from the evacuated air by cooling in the condenser (K).
    Type: Grant
    Filed: January 21, 2008
    Date of Patent: October 22, 2013
    Assignee: Inotec GmbH Co. Holding und Handels-KG
    Inventor: Günter Krüger
  • Patent number: 8518615
    Abstract: A method of drying an organic pigment is provided which includes an under-depressurization microwave drying step of irradiating the organic pigment with microwaves under depressurization and drying the organic pigment. A method of processing a phthalocyanine pigment and a method of manufacturing an electrophotographic photosensitive member are also provided each of which utilizes the drying method.
    Type: Grant
    Filed: September 27, 2010
    Date of Patent: August 27, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventor: Masato Tanaka
  • Publication number: 20130196040
    Abstract: A method for cooking a product in an electromagnetic oven. In one embodiment product is conveyed to a convection oven. The product is then cooked to a moisture content of between about 3% and about 20%. The product is then conveyed to an electromagnetic oven where the moisture content is reduced to below 2.5%. The combination of the convection oven and the electromagnetic oven reduces the moisture gradient within the product which results in decreased post packaging stress cracks.
    Type: Application
    Filed: January 31, 2012
    Publication date: August 1, 2013
    Applicant: FRITO-LAY NORTH AMERICA, INC.
    Inventors: Ramonica GREEN, Ponnattu Kurian JOSEPH, Baninder S. SROAN
  • Publication number: 20130171364
    Abstract: A wood treatment method and apparatus employing a bundle support structure to support a bundle of wood during transportation and treatment of the bundle. The bundle support structure rests on a movable cart during transportation of the bundle, but is detached from the movable cart during treatment of the bundle.
    Type: Application
    Filed: November 29, 2012
    Publication date: July 4, 2013
    Applicant: Eastman Chemical Company
    Inventor: Eastman Chemical Company
  • Patent number: 8469196
    Abstract: Methods and apparatuses for separating metal values, such as nickel and nickel compounds, from mineral ores, including lateritic ores are disclosed. The method includes providing a mixture of particles (e.g., crushed and sized ore) that is composed of at least a first group of particles and a second group of particles. Group members have similar chemical composition, while particles belonging to different groups have dissimilar chemical compositions. The mixture of particles is concurrently, or generally concurrently, heated (using microwave/millimeter wave energy) and exposed to a reactant. The wave energy and the reactant act to increase the difference in either the magnetic susceptibility or other separation properties between the first and second group of particles. The mixture of particles is then passed through an appropriate separator to separate the particles of interest. Optional steps are disclosed for purifying selected particles.
    Type: Grant
    Filed: July 9, 2009
    Date of Patent: June 25, 2013
    Assignee: Wave Separation Technologies, LLC
    Inventor: Stephen Birken
  • Publication number: 20130133220
    Abstract: Systems and methods for efficient microwave drying of extruded honeycomb structures are disclosed. The methods include conveying first and second sets of honeycomb structures in opposite directions through multiple applicator cavities. Each honeycomb structure has a moisture content MC, and the honeycomb structures within each cavity define an average moisture content MCA between 40% and 60% therein. The methods include irradiating the first and second sets of honeycomb structures within the cavities with microwave radiation having an amount of input microwave power PI that results in an amount of reflected microwave power PR from the honeycomb structures, where PR<(0.2)PI. This allows for a relatively high microwave power to be maintained in each cavity. Batch microwave drying methods are also disclosed.
    Type: Application
    Filed: November 29, 2011
    Publication date: May 30, 2013
    Inventors: James Anthony Feldman, Jacob George, Amit Halder, Nadezhda Pavlovna Paramonova
  • Patent number: 8407915
    Abstract: Tray assemblies and methods for manufacturing ceramic articles are provided. In one embodiment, a tray assembly includes a tray body having a supporting surface operable to support a ceramic article for passage through a microwave drying apparatus during a microwave drying process and a microwave coupling cover associated with the tray body. The microwave coupling cover envelopes at least a portion of the ceramic article during the microwave drying process. The microwave coupling cover has a dielectric property such that a greater percentage of microwave energy is coupled into the ceramic article with the microwave coupling cover present during the microwave drying process than with the microwave coupling cover not present. Methods may include rotating the ceramic article when the ceramic article is about 40%-60 dry.
    Type: Grant
    Filed: February 22, 2011
    Date of Patent: April 2, 2013
    Assignee: Corning Incorporated
    Inventors: Jacob George, James Anthony Feldman, Nadezhda P Paramonova, Michael Dean Seymour
  • Publication number: 20120304482
    Abstract: The present disclosure relates to a method for drying flexible tubular casings by microwaves, in particular for drying coated or uncoated food casings, and also to the use of microwaves for drying such casings. In addition, the invention relates to an integrated system for producing and drying flexible tubular casings by microwaves.
    Type: Application
    Filed: January 11, 2011
    Publication date: December 6, 2012
    Applicant: CASETECH GMBH
    Inventors: Andreas Willers, Hartmut Fuhrmann
  • Patent number: 8282788
    Abstract: The invention relates to extraction apparatus and method for obtaining essential oils and essence and pigments from odorous raw materials by microwave radiation heating under sub-critical conditions, which has advantages of easy operation, higher extracting temperature and efficiency. The microwave chamber has a power level of 100 W to 1,500 W and its microwave radiation has a frequency at 915 MHz or 2,450 MHz. The extraction process can be performed without any preheating necessary. A condenser unit is operated at temperatures between ?20° C. and 15° C. for cooling the gas extractive flowing out of the extraction unit. Because both volatile aromatic compounds and pigments of the odorous raw materials can be extracted successfully, the extracted essence is colorful. Since the extraction process by microwave radiation heating is free from adding any organic solvent and/or any artificial chemical compound, the extraction apparatus and method applied are really environmentally friendly.
    Type: Grant
    Filed: May 18, 2009
    Date of Patent: October 9, 2012
    Inventor: Bing-Nan Lee
  • Patent number: 8191281
    Abstract: A method of drying a honeycomb formed article, in which the honeycomb formed article can be dried in a short time while prohibiting occurrence of defects such as deformation, breakage and the like. There is provided a drying method of an unfired honeycomb formed article including raw material composition containing ceramics raw material, water, and binder, and having a plurality of cells, the cells being separated by partition walls to be passage of fluid, and electromagnetic wave drying is performed to dry the honeycomb formed article after the honeycomb formed article is preheated by steam.
    Type: Grant
    Filed: September 2, 2009
    Date of Patent: June 5, 2012
    Assignee: NGK Insulators, Ltd.
    Inventors: Yasuhiro Horiba, Hiromi Shimada, Yohei Takemori, Shinzou Hayashi
  • Publication number: 20120086153
    Abstract: A manufacturing method of a ceramic fired body includes forming a composition of ceramic raw material containing water to make a ceramic molded body. The ceramic molded body is irradiated with a microwave under a depressurized atmosphere of about 1 KPa or more and about 50 kPa or less to dry the ceramic molded body. The ceramic molded body is fired to make the ceramic fired body.
    Type: Application
    Filed: September 23, 2011
    Publication date: April 12, 2012
    Applicant: IBIDEN CO., LTD.
    Inventors: Ryoichi KUDO, Tsubasa Sonoo, Tadafumi Ohashi, Yuji Haga
  • Publication number: 20120066867
    Abstract: A seed cotton dryer comprises an array of electromagnetic wave energy generators in a cotton gin, a cotton picker/stripper. An appropriate amount of energy is used to evaporate a considerable amount of moisture in the seed cotton without producing enough energy to pop the cotton seeds. Seed cotton dried by wave energy is much easier to separate the cotton seeds and lint from leaves, stems and other plant parts. The seed cotton is preferably transported through the dryer in a conduit having flat sides which reflects the wave energy more efficiently than through a round conduit. Provisions are made to prevent arcing in the transport conduit when extraneous metal pieces are inadvertently mixed with the seed cotton. In some embodiments, heated air from a diesel engine is used to dry crops as they are being harvested.
    Type: Application
    Filed: October 28, 2011
    Publication date: March 22, 2012
    Inventor: Ronnie J. Nimmo
  • Patent number: 8075829
    Abstract: There is provided a method for drying a honeycomb formed article 1. The method has the first step, where an unfired honeycomb formed article 1 having a plurality of cells separated by partition walls made from raw material composition containing a ceramic raw material, water, and a binder is heated and dried by microwave drying or dielectric drying, and a second step, where the honeycomb formed article 1 is dried by hot air drying, where hot air whose humidity was adjusted to have a wet-bulb temperature of 50 to 100° C. using a hot air drying apparatus 11 after the first step is passed through the cells. The method can dry a honeycomb formed article in a shorter period of time with inhibiting generation of a defect such as a deformation or breakage.
    Type: Grant
    Filed: August 7, 2009
    Date of Patent: December 13, 2011
    Assignee: NGK Insulators, Ltd.
    Inventors: Shuichi Takagi, Yasuhiro Horiba
  • Publication number: 20110277337
    Abstract: A method of drying fresh plant material wherein the fresh plant material containing a desired heat labile compound is exposed to microwave energy at an intensity and for a time sufficient to remove a majority of the water from the plant material without degrading a majority of the heat labile compound. The method is particularly suited to in-field drying of freshly harvested plant material to reduce the weight and volume of the plant material for savings transportation costs to an extraction facility while preserving at high levels the amount and activity of the desired heat labile compound.
    Type: Application
    Filed: May 10, 2011
    Publication date: November 17, 2011
    Applicant: KEMIN INDUSTRIES, INC.
    Inventors: Susan Ruden, Brindha Narasimhamoorthy, John A. Greaves, Sarah Wildgen
  • Patent number: 8020314
    Abstract: Methods and apparatus for drying ceramic green bodies include providing one or more ceramic green bodies in a microwave heating chamber operatively connected to a microwave source and a PLC. The total mass of the ceramic green bodies present in the microwave heating chamber is determined. Microwave energy is generated with the microwave source and transmitted from the microwave source to the microwave heating chamber. A transmitted power of the microwave energy transmitted from the microwave source to the microwave heating chamber is measured with power sensors. The reflected power of reflected microwave energy reflected back from the microwave heating chamber is also measured. The power of the microwave energy transmitted from the microwave source to the microwave heating chamber is adjusted based on the total mass of ceramic green bodies present in the microwave heating chamber, the measured transmitted power and the measured reflected power.
    Type: Grant
    Filed: October 31, 2008
    Date of Patent: September 20, 2011
    Assignee: Corning Incorporated
    Inventors: Jacob George, Parasuram Padmanabhan Harihara, Min Shen
  • Publication number: 20110224474
    Abstract: Systems and methods for reducing the volume of radioactive waste materials through desiccation, pyrolysis and vitrification carried out by microwave heating. The final product of the advanced microwave system is a dryer, denser, compacted waste product. The invention comprises systems in which a layer of waste material is treated by microwaves within a hopper before deposited within the final waste container; systems in which a thin layer of waste material is treated by microwaves after it has been deposited within the final waste container; and systems in which waste material is treated by microwaves within a hopper before being deposited within the final waste container.
    Type: Application
    Filed: February 28, 2011
    Publication date: September 15, 2011
    Applicant: KURION, INC.
    Inventor: Mark S. DENTON
  • Publication number: 20110204548
    Abstract: Tray assemblies and methods for manufacturing ceramic articles are provided. In one embodiment, a tray assembly includes a tray body having a supporting surface operable to support a ceramic article for passage through a microwave drying apparatus during a microwave drying process and a microwave coupling cover associated with the tray body. The microwave coupling cover envelopes at least a portion of the ceramic article during the microwave drying process. The microwave coupling cover has a dielectric property such that a greater percentage of microwave energy is coupled into the ceramic article with the microwave coupling cover present during the microwave drying process than with the microwave coupling cover not present. Methods may include rotating the ceramic article when the ceramic article is about 40%-60 dry.
    Type: Application
    Filed: February 22, 2011
    Publication date: August 25, 2011
    Inventors: Jacob George, James Anthony Feldman, Nadezhda P. Paramonova, Michael Dean Seymour
  • Patent number: 7966744
    Abstract: The present invention relates to a food waste treatment apparatus that can effectively dispose food waste containing a large amount of water, rapidly dry food waste using microwaves, and remove odors and vapors generating during the drying process, thereby discharging clean air. The food waste treatment apparatus comprises a pulverizer (10) for pulverizing food waste, an endless track (20) for transferring food waste, a plurality of containers (30) installed on the upper surface of the endless track (20) for storing pulverized food waste, and a microwave dryer installed above the endless track for drying the pulverized food waste by making microwaves pass through the endless track in a direction perpendicular to the moving direction of the endless track (20).
    Type: Grant
    Filed: March 24, 2006
    Date of Patent: June 28, 2011
    Inventors: Soo Dong Kim, Sung Hwa Kim
  • Patent number: 7913417
    Abstract: A system and method of controlling energy that is input to a material substance, for the controlled removal of moisture from the material substance, is disclosed. A controlled air flow is blown onto the material substance at a specified air flow rate over at least one specified time period such that the material substance absorbs thermal energy from the controlled air flow via at least one outer surface of the material substance. The controlled air flow is of a specified humidity level at a specified temperature level. The material substance is also irradiated with microwave energy at a first specified power level for at least a first specified time duration such that the material substance absorbs at least a part of the microwave energy and converts the absorbed microwave energy to thermal energy within the material substance. As a result, moisture is removed from the material substance in a controlled manner.
    Type: Grant
    Filed: November 22, 2006
    Date of Patent: March 29, 2011
    Assignee: The Sherwin-Williams Company
    Inventors: John J. Patka, Sr., Sharon L. Judge
  • Publication number: 20100226629
    Abstract: Described are roll-to-roll or reel-to-reel thermal or rapid thermal processing tools (reactors) are used to react a precursor layer on a continuous flexible workpiece. Variants of the reactors are described, including a reactor having multiple exhaust outlets connected to a process gap of the reactor between an entrance opening and an exit opening of the process gap; a reactor including multiple gas inlets and exhaust outlets connected to a process gap of the reactor between an entrance opening and an exit opening of the process gap; a reactor including multiple gas inlets and exhaust outlets connected to a process gap of the reactor between an entrance opening and an exit opening of the process gap; and a reactor including multiple gas inlets and exhaust outlets connected to a process gap of the reactor between an entrance opening and an exit opening of the process gap.
    Type: Application
    Filed: March 10, 2010
    Publication date: September 9, 2010
    Applicant: SOLOPOWER, INC.
    Inventors: Bulent M. Basol, Howard Zolla, Mustafa Pinarbasi, Gregory Norsworthy
  • Patent number: 7745568
    Abstract: A process is provided for recovering polymer solids from a polymerisation reactor effluent. The process comprises extracting the polymerisation effluent from a polymerisation reactor; passing the effluent, or a part thereof, to a flash vessel for flashing liquid in the effluent to vapour, and removing said vapour from said flash vessel; passing the polymer solids from the flash vessel to a transfer apparatus which comprises a transfer vessel; passing the polymer solids from the transfer vessel to a purging means for removing residual liquid from the polymer solids; wherein the polymer solids are passed from the flash vessel to the purging means in a continuous flow such that a quantity of polymer solids is maintained in the transfer vessel. An apparatus for performing the process is also provided.
    Type: Grant
    Filed: February 8, 2005
    Date of Patent: June 29, 2010
    Assignee: Total Petrochemicals Research Feluy
    Inventor: Hugo Vandaele
  • Publication number: 20100132210
    Abstract: An installation for drying organic matter, especially kitchen and food wastes or other biological matter, including matter that contains packaging residues, napkins, straws or the like. The installation comprises the following components: (a) a vacuum mixer (M) having a closable charging opening for introducing the organic matter and a closable discharge opening, disposed at the bottom or laterally towards the bottom, for the dried matter, (b) at least one vacuum pump (VP) for evacuating the air in the mixer to generate the vacuum, the pump being connected to at least one evacuation tube mounted above the maximum filling level in the housing of the mixer (M), (c) a heater (H) for heating the organic matter, (d) at least one condenser (K), connected to the air evacuation duct (AL) of the vacuum pump (VP) and having a cooling unit (KA) connected thereto to condense the evacuated air, and (e) a discharge duct (AW) for the condensate obtained from the evacuated air by cooling in the condenser (K).
    Type: Application
    Filed: January 21, 2008
    Publication date: June 3, 2010
    Applicant: INOTEC GMBH CO. HOLDING UND HANDELS-KG
    Inventor: Gunter Kruger
  • Publication number: 20100126035
    Abstract: A former unit (20) as a drying apparatus includes four irradiation zones (31-34) in a main casing (21). Each of the irradiation zones (31-34) contains one tray unit (10). Each of the tray units (10) contains four transfer trays (14) aligned in the vertical direction. Each of the transfer trays (14) carries wet PTFE powder. In the former unit (20), the tray units (10) sequentially move from the first irradiation zone (31) to the fourth irradiation zone (34). A microwave is applied to the transfer trays (14) in the tray unit (10) from the left in the first irradiation zone (31), from behind in the second irradiation zone (32), from the front in the third irradiation zone (33), and from the right in the fourth irradiation zone.
    Type: Application
    Filed: February 27, 2008
    Publication date: May 27, 2010
    Inventors: Shinichirou Kobayashi, Tomonori Kikuno, Teruo Kido, Yasuhiro Utsumi, Takayuki Tanaka, Satoshi Tokuno
  • Patent number: 7721461
    Abstract: An undried honeycomb formed body 41 is subjected to high-frequency heating in an atmosphere where humidity and temperature are maintained at 30 to 65% and 75 to 130° C., respectively, such that 50 to 99 mass % of water contained in the undried honeycomb formed body 41 is evaporated at the end of high-frequency heating, whereby the amount of water vaporized from the outer part of the undried honeycomb formed body 41 is increased, thereby reducing a difference between amount of water vaporized from the inner part of the undried honeycomb formed body 41 and that of water vaporized from the outer part thereof as well as reducing a difference between drying degree of the inner part of the undried honeycomb formed body 41 and that of the outer part thereof, thereby producing a dried honeycomb formed body 42 in which deformation of the partition walls is suppressed.
    Type: Grant
    Filed: September 2, 2004
    Date of Patent: May 25, 2010
    Assignee: NGK Insulators, Ltd.
    Inventors: Takeyuki Ishii, Yuji Asai, Makoto Nakajo
  • Publication number: 20100107435
    Abstract: Methods and apparatus for drying ceramic green bodies include providing one or more ceramic green bodies in a microwave heating chamber operatively connected to a microwave source and a PLC. The total mass of the ceramic green bodies present in the microwave heating chamber is determined. Microwave energy is generated with the microwave source and transmitted from the microwave source to the microwave heating chamber. A transmitted power of the microwave energy transmitted from the microwave source to the microwave heating chamber is measured with power sensors. The reflected power of reflected microwave energy reflected back from the microwave heating chamber is also measured. The power of the microwave energy transmitted from the microwave source to the microwave heating chamber is adjusted based on the total mass of ceramic green bodies present in the microwave heating chamber, the measured transmitted power and the measured reflected power.
    Type: Application
    Filed: October 31, 2008
    Publication date: May 6, 2010
    Inventors: Jacob George, Parasuram Padmanabhan Harihara, Min Shen
  • Patent number: 7694432
    Abstract: The present invention concerns a method and apparatus for dehumidifying, drying or the like of different materials. The invention is developed primarily for dehumidification of sewage sludge (7), but it may be utilized for many different materials including foodstuffs as crispbread and pasta. The sludge (7) or other material is dehumidified or dried in a chamber (1) by means of thermal radiation. The thermal radiation is given by means of one or more elements (2) for thermal radiation. The thermal radiation is concentrated to one or more distinct wavelength ranges at which water has peaks for absorption of radiation energy. Air is circulated in the chamber (1), to take up moisture evaporated from the material.
    Type: Grant
    Filed: November 14, 2006
    Date of Patent: April 13, 2010
    Inventors: Niclas Eriksson, Lars Svenningsson
  • Publication number: 20100058607
    Abstract: A process for removing water and solutes from the lumens of green wood, while leaving the cell walls throughout the wood uniformly fully swollen, comprises subjecting the green wood to supercritical carbon dioxide.
    Type: Application
    Filed: October 29, 2007
    Publication date: March 11, 2010
    Inventors: Robert Arthur Franich, Sheryl Suzanne Gallagher, Hendricus Wilhelmus Kroese
  • Patent number: 7665226
    Abstract: An apparatus and a method for drying under reduced pressure using microwaves. The apparatus comprises a chamber (13) for housing an object (11), a depressurizing pump (22) connected to the chamber (13) for depressurizing the inside of the chamber (13), a microwave irradiating device (12) for irradiating microwaves to the object (11) in the chamber (13), an airflow generating device for generating an airflow in the chamber (13) by introducing a gas from the outside to the inside of the chamber (13), and a control device (35) for controlling the above components. The object (11) in the chamber (13) is dried at temperatures below a deterioration temperature of the object (11) by intermittent irradiation of the microwaves under reduced pressure while the airflow is generated around the object (11).
    Type: Grant
    Filed: April 11, 2005
    Date of Patent: February 23, 2010
    Assignees: Kitakyushu Foundation for the Advancement of Industry, Science & Technology, Fukuoka Prefectural Government
    Inventors: Takaharu Tsuruta, Tadahisa Hayashi
  • Publication number: 20100005682
    Abstract: A former unit (20) as a drying apparatus includes a horizontally oriented main casing (21). Space inside the main casing (21) is divided into four irradiation zones (31-34). Each of the irradiation zones (31-34) contains one tray unit (10). Each of the tray units (10) contains four metallic transfer trays (14) aligned in the vertical direction, with a distance between the transfer trays (14) set to half a wavelength of a microwave (?/2) or larger. Each of the transfer trays (14) carries wet PTFE powder. In the irradiation zones (31-34), the tray units (10) sequentially move from the first irradiation zone (31) to the fourth irradiation zone (34), and the microwave is laterally applied to the transfer trays (14).
    Type: Application
    Filed: February 27, 2008
    Publication date: January 14, 2010
    Inventors: Shinichirou Kobayashi, Tomonori Kikuno, Teruo Kido, Yasuhiro Utsumi, Takayuki Tanaka, Satoshi Tokuno
  • Publication number: 20100000110
    Abstract: A vacuum microwave drying apparatus, includes: a tank (1); a tank enclosure (2), which defines an accommodate space with the tank; a vacuum system, which is communicated with the accommodate space through a vacuum pipe (5); a continuous feed-in mechanism (9), including a feed-in pipe (902) communicated with the accommodate space, the continuous feed-in mechanism (9) sending materials into the accommodate space through the feed-in pipe (902) continuously; a continuous feed-out mechanism (10), which sends the materials out of the accommodate space continuously; at least two layers of material sending mechanisms (3), each of which is arranged in the accommodate space in parallel along the longitudinal direction of the tank, to send the materials from the continuous feed-in mechanism (9) into the continuous feed-out mechanism (10); and a plurality of microwave heating devices (4), each of which has a microwave feed-in port (403), which is located in the accommodate space, to send microwave to the accommodate spac
    Type: Application
    Filed: August 24, 2007
    Publication date: January 7, 2010
    Inventor: Sheng Li
  • Publication number: 20090313846
    Abstract: A method of drying a honeycomb formed article, in which the honeycomb formed article can be dried in a short time while prohibiting occurrence of defects such as deformation, breakage and the like. There is provided a drying method of an unfired honeycomb formed article including raw material composition containing ceramics raw material, water, and binder, and having a plurality of cells, the cells being separated by partition walls to be passage of fluid, and electromagnetic wave drying is performed to dry the honeycomb formed article after the honeycomb formed article is preheated by steam.
    Type: Application
    Filed: September 2, 2009
    Publication date: December 24, 2009
    Applicant: NGK INSULATORS, LTD.
    Inventors: Yasuhiro HORIBA, Hiromi SHIMADA, Yohei TAKEMORI, Shinzou HAYASHI
  • Publication number: 20090302030
    Abstract: A composite material that increases in temperature upon exposure to electromagnetic radiation comprising single crystal silicon carbide whiskers and fibrils in a matrix material. Also, heat-generating objects comprising the composite material, and a method of generating heat.
    Type: Application
    Filed: June 12, 2009
    Publication date: December 10, 2009
    Applicant: Advanced Composite Materials Corporation
    Inventors: Thomas E. QUANTRILLE, William M. Rogers
  • Publication number: 20090294440
    Abstract: Systems and methods for controlling drying of ceramic greenwares in a manner that accounts for the load presented to a radio-frequency (RF) source of an RF applicator to reduce the risk of overheating greenware during drying. The method includes partially drying the greenware and then substantially drying the greenware with RF radiation. The amount of RF radiation provided to an electrode region is controlled based on the number of greenware pieces within the electrode region at a given time. The system includes a control unit electrically connected to the electrode and configured to provide a select RF voltage to the electrode based on the number of greenwares within the electrode region. The system adjusts at least one input voltage from a power supply. The adjusted voltage is stepped-up, DC-rectified to form a plate voltage, and then is converted by a high-frequency DC/AC convertor to the select high-frequency AC RF voltage needed to dry the greenwares without overheating.
    Type: Application
    Filed: May 28, 2009
    Publication date: December 3, 2009
    Inventors: Paul Andreas Adrian, James Anthony Feldman, Michelle Yumiko Ronco, Terri A. Waschezyn