Radio Or High-frequency Energy Patents (Class 34/255)
  • Patent number: 9560859
    Abstract: A system for dehydrating raw produce without introducing excess heat to the produce, including a first chamber for holding warm, moist air, a second chamber connected in fluidic communication with the first chamber for cooling and drying warm, moist air received from the first chamber, and a filter operationally connected between the first and second chambers for removing suspended particulates from warm, moist air flowing therethrough with a drain operationally connected to the second chamber for removing water therefrom. A third chamber is connected in fluidic communication with the second chamber for receiving cool, dry air therefrom and for receiving raw produce for drying, and a wind current generator operationally connected to the second chamber to urge cool, dry air therefrom and into the third chamber.
    Type: Grant
    Filed: June 12, 2014
    Date of Patent: February 7, 2017
    Assignee: Skinny & Co., LLC
    Inventor: Nguyen Tan Duc
  • Patent number: 9447537
    Abstract: A clothes dryer apparatus (99) comprising an electrically conductive, grounded, generally cylindrical rotatable drum (13) having a hollow interior adapted to contain a load (15) of wet clothes to be dried. The drum's (13) exterior surface (27) is partially indented to form one or more integral, generally ring-shaped insulated notches (10). An electrically conductive, generally flat arcuate anode (11) is positioned within each notch (10), with no physical contact between an anode (11) and its corresponding notch (10). Each anode (11) is spatially fixed with respect to the rotatable drum (13), and is electrically isolated from conductive portions of the drum (13). A source (21) of RF power (12), operating at a single fixed frequency, is coupled to each anode (11).
    Type: Grant
    Filed: October 8, 2015
    Date of Patent: September 20, 2016
    Assignee: COOL DRY, INC.
    Inventors: David S. Wisherd, John Alan Eisenberg, Michael Andrew Wohl, Pablo Eugenio D'Anna
  • Patent number: 9200402
    Abstract: Methods and apparatus for heating an object 9 that includes an absorbed medium. A method embodiment comprises: placing the object 9 including the medium into an enclosure 16; initiating a heating process by subjecting the object 9 and medium to a capacitive AC electrical field generated by an RF power source 2 at a single low frequency; controlling the heating process by taking real time measurements; and making real time adjustments to the RF power source 2 in response to the real time measurements. The object 9 substantially absorbs the medium in a first “cool” state, and therefore has a maximum weight in the first “cool” state. The object 9 is substantially free from the medium in a second “heated” state, due to substantial release of the medium from the object 9. The released medium is evaporated during the heating process. The heating process is completed when the object 9 is substantially transitioned into the second “heated” state.
    Type: Grant
    Filed: July 21, 2014
    Date of Patent: December 1, 2015
    Assignee: Cool Dry, Inc.
    Inventors: David S. Wisherd, John A. Eisenberg, Pablo Eugenio D'Anna
  • Publication number: 20150101207
    Abstract: A method for drying laundry with a radio frequency (RF) applicator having a plurality of baffles on a drum rotatable on a non-vertical axis, an anode element in at least one first baffle and a cathode element in at least one second baffle, the method including capacitively coupling the anode element to the cathode element, and energizing the RF applicator to generate a field of electromagnetic radiation (e-field) between the anode element and the cathode element, wherein liquid in the laundry residing within the e-field will be dielectrically heated to effect a drying of the laundry.
    Type: Application
    Filed: October 14, 2013
    Publication date: April 16, 2015
    Applicant: Whirlpool Corporation
    Inventors: MARK L. HERMAN, GARRY L. PETERMAN
  • Publication number: 20150089829
    Abstract: A method and apparatus for drying textile material with a radio frequency (RF) applicator and a controller, the method includes energizing the RF applicator to generate a field of electromagnetic radiation (e-field), measuring a parameter related to the energization of the RF applicator, determining a drying cycle of operation in the controller based on the measured parameter, and controlling the energization of the RF applicator according to the determination of the drying cycle of operation, wherein the textile material is dried.
    Type: Application
    Filed: October 2, 2013
    Publication date: April 2, 2015
    Applicant: Whirlpool Corporation
    Inventors: MARK L. HERMAN, DANIEL M. PUTNAM
  • Publication number: 20150052774
    Abstract: An improved method of drying operation for an article using a field of electromagnetic radiation (e-field) generated between an anode element and a cathode element by a radio frequency (RF) applicator between the anode and cathode elements such that liquid in the article will be heated to effect a drying of the article.
    Type: Application
    Filed: August 20, 2013
    Publication date: February 26, 2015
    Applicant: Whirlpool Corporation
    Inventors: MARK L. HERMAN, WALLACE S. HUBBARD
  • Publication number: 20150052775
    Abstract: A radio frequency (RF) laundry dryer includes, amongst other things, an RF generator, a drying surface and a Faraday cage enclosing the drying surface. The drying surface on which textiles are supported further includes an RF applicator having an anode and cathode coupled to the RF generator. At least a portion of the cathode substantially encompasses the anode to electrically shield the anode from the Faraday cage ensuring the formation of an e-field between the anode and cathode instead of the anode and the Faraday cage upon energizing the RF generator.
    Type: Application
    Filed: August 23, 2013
    Publication date: February 26, 2015
    Applicant: Whirlpool Corporation
    Inventors: MARK L. HERMAN, GARRY L. PETERMAN, ARUN RAJENDRAN
  • Publication number: 20150047218
    Abstract: An RF laundry dryer includes, amongst other things, an RF generator, an RF applicator having a perforated body supporting anode and cathode elements, a fan arranged relative to the perforated body to flow or draw air through the perforated body and an electromagnetic shield protecting the fan from the e-field. Both anode and cathode elements are operably coupled to the RF generator to generate an e-field between the anode and cathode upon the energizing of the RF generator.
    Type: Application
    Filed: August 14, 2013
    Publication date: February 19, 2015
    Applicant: Whirlpool Corporation
    Inventors: MARK L. HERMAN, GARRY L. PETERMAN
  • Patent number: 8943705
    Abstract: A method for heating an object having a variable weight that includes a medium is provided. The method comprises: (A) placing the object having the variable weight including medium into an enclosure; (B) initiating a heating process by subjecting medium including the object having the variable weight to a variable AC electrical field; and (C) controlling the heating process. The object has substantially absorbed medium in a first “cool” state and therefore includes a maximum weight in the first “cool” state due to absorption of medium. The object is substantially free from medium in a second “heated” state due to substantial release of medium from the object, wherein the released medium is evaporated during the heating process. The heating process is completed when the object is substantially transitioned into the second “heated” state. The method further comprises using an air flow having an ambient temperature inside the enclosure to carry away the evaporated medium from the enclosure.
    Type: Grant
    Filed: May 20, 2011
    Date of Patent: February 3, 2015
    Assignee: Cool Dry LLC
    Inventors: David S. Wisherd, John A. Eisenberg, Pablo E. D'Anna
  • Publication number: 20150020403
    Abstract: A method for drying an article with a radio frequency (RF) applicator having anode elements and cathode elements includes capacitively coupling the anode elements, capacitively coupling the cathode elements, capactively coupling an anode element to a cathode element, and energizing the RF applicator to generate an RF field between anode and cathode elements wherein liquid residing within the field will be dielectrically heated.
    Type: Application
    Filed: July 17, 2013
    Publication date: January 22, 2015
    Inventors: MARK L. HERMAN, GARRY L. PETERMAN
  • Publication number: 20140368589
    Abstract: Curing apparatus, image forming apparatus and articles of manufacture are disclosed. An example curing apparatus includes a curing unit to heat an area adjacent a substrate travel path, the curing unit having a width less than a width of the substrate travel path, and a controller to reciprocate the curing unit within the substrate width.
    Type: Application
    Filed: July 1, 2011
    Publication date: December 18, 2014
    Applicant: HEWLETT=PACKARD DEVELOPMENT COMPANY, LP
    Inventors: Foo Javier Perez Gellida, Luis Fernando Martinez Nieto, Francisco Javier Rodriguez Escanuela
  • Publication number: 20140345152
    Abstract: A clothes dryer includes a cavity adapted to receive at least one item of clothing, at least one RF feed which feeds RF energy into the cavity, and a spectral imaging module adapted to provide a spectral image comprising input efficiency to the cavity as a function of frequency. A controller controls one or more characteristics of the RF energy to heat a liquid within and/or on fibers of the at least one item of clothing, in which the controller reduces amounts of energy directed to problem areas in the spectral image.
    Type: Application
    Filed: August 8, 2014
    Publication date: November 27, 2014
    Inventors: Eran BEN-SHMUEL, Daniella ATZMONY, Ginadi SHAHAM, Alexander BILCHINSKY
  • Publication number: 20140325865
    Abstract: Methods and apparatus for heating an object 9 that includes an absorbed medium. A method embodiment comprises: placing the object 9 including the medium into an enclosure 16; initiating a heating process by subjecting the object 9 and medium to a capacitive AC electrical field generated by an RF power source 2 at a single low frequency; controlling the heating process by taking real time measurements; and making real time adjustments to the RF power source 2 in response to the real time measurements. The object 9 substantially absorbs the medium in a first “cool” state, and therefore has a maximum weight in the first “cool” state. The object 9 is substantially free from the medium in a second “heated” state, due to substantial release of the medium from the object 9. The released medium is evaporated during the heating process. The heating process is completed when the object 9 is substantially transitioned into the second “heated” state.
    Type: Application
    Filed: July 21, 2014
    Publication date: November 6, 2014
    Applicant: Cool Dry LLC
    Inventors: David S. WISHERD, John A. Eisenberg, Pablo Eugenio D'Anna
  • Publication number: 20140283407
    Abstract: One aspect is a material drying system with a conductive bin at least partially filled with harvested material. A frequency generator is configured to generate radio frequency energy and a controller is coupled to the frequency generator for controlling the radio frequency energy. At least one conductive shape located within the harvested material and coupled to the frequency generator and controller. The frequency generator and controller provide the radio frequency energy to the at least one conductive shape such that a system capacitor is formed by the combination of the at least one conductive shape and the conductive bin and with harvested material forming a dielectric therebetween such that friction of water molecules in the harvested material is induced quickening drying thereof.
    Type: Application
    Filed: March 25, 2014
    Publication date: September 25, 2014
    Applicant: Dry Grain LLC
    Inventors: Nathaniel L. Hultgren, Daniel A. Reek, James Heine
  • Publication number: 20140283406
    Abstract: One aspect is a material drying system with a conductive bin at least partially filled with harvested material. A frequency generator is configured to generate radio frequency energy and a controller is coupled to the frequency generator for controlling the radio frequency energy. At least one conductive shape located within the harvested material and coupled to the frequency generator and controller. The frequency generator and controller provide the radio frequency energy to the at least one conductive shape such that a system capacitor is formed by the combination of the at least one conductive shape and the conductive bin and with harvested material forming a dielectric therebetween such that friction of water molecules in the harvested material is induced quickening drying thereof.
    Type: Application
    Filed: March 25, 2014
    Publication date: September 25, 2014
    Applicant: Dry Grain LLC
    Inventors: Nathaniel L. Hultgren, Daniel A. Reek, James Heine
  • Patent number: 8839527
    Abstract: A method of drying an object comprising, providing an object into an RF cavity; applying broadband RF energy to the object in controlled manner which keeps the object within a desired temporal temperature schedule and within a desired spatial profile; and terminating the drying when it is at least estimated that a desired drying level is achieved.
    Type: Grant
    Filed: February 21, 2008
    Date of Patent: September 23, 2014
    Assignee: Goji Limited
    Inventors: Eran Ben-Shmuel, Daniella Atzmony, Ginadi Shaham, Alexander Bilchinsky
  • Patent number: 8826561
    Abstract: A method for heating a medium that includes an object having a variable weight is provided. The method comprises (A) placing medium including an object having variable weight into a variable enclosure having adjustable dimensions; (B) initiating a heating process by subjecting the medium including the object to a variable AC electrical field; (C) substantially continuously measuring an impedance of medium including the object during the heating process; (D) adjusting dimensions of said variable enclosure to optimize the heating process; (E) adjusting parameters of the variable AC electrical field to optimize the heating process; and (F) controlling the heating process.
    Type: Grant
    Filed: June 17, 2010
    Date of Patent: September 9, 2014
    Assignee: Cool Dry LLC
    Inventors: David S. Wisherd, John A. Eisenberg, Pablo E. D'Anna
  • 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
  • Publication number: 20130219737
    Abstract: Some exemplary aspects of the invention may be directed to an apparatus for processing an object by RF energy applied at a plurality of excitation setups. The apparatus may include a controller configured to select one or more excitation setups, from among a plurality of pilot excitation setups, for applying RF energy to a rotating chamber; and cause a source of RF energy to apply RF energy at the one or more selected excitation setups, wherein the controller is configured to both select the one or more excitation setups and cause the source of RF energy to apply RF energy to the one or more selected excitation setups at least twice during a single rotation of the rotating chamber. The apparatus may be a dryer.
    Type: Application
    Filed: February 12, 2013
    Publication date: August 29, 2013
    Applicant: GOJI LTD.
    Inventor: GOJI LTD.
  • 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: 20120291304
    Abstract: A method for heating an object having a variable weight that includes a medium is provided. The method comprises: (A) placing the object having the variable weight including medium into an enclosure; (B) initiating a heating process by subjecting medium including the object having the variable weight to a variable AC electrical field; and (C) controlling the heating process. The object has substantially absorbed medium in a first “cool” state and therefore includes a maximum weight in the first “cool” state due to absorption of medium. The object is substantially free from medium in a second “heated” state due to substantial release of medium from the object, wherein the released medium is evaporated during the heating process. The heating process is completed when the object is substantially transitioned into the second “heated” state. The method further comprises using an air flow having an ambient temperature inside the enclosure to carry away the evaporated medium from the enclosure.
    Type: Application
    Filed: May 20, 2011
    Publication date: November 22, 2012
    Applicant: COOL DRY LLC
    Inventors: David S. Wisherd, John A. Eisenberg, Pablo E. D'Anna
  • Publication number: 20110308101
    Abstract: A method for heating a medium that includes an object having a variable weight is provided. The method comprises (A) placing medium including an object having variable weight into a variable enclosure having adjustable dimensions; (B) initiating a heating process by subjecting the medium including the object to a variable AC electrical field; (C) substantially continuously measuring an impedance of medium including the object during the heating process; (D) adjusting dimensions of said variable enclosure to optimize the heating process; (E) adjusting parameters of the variable AC electrical field to optimize the heating process; and (F) controlling the heating process.
    Type: Application
    Filed: June 17, 2010
    Publication date: December 22, 2011
    Inventors: David S. Wisherd, John A. Eisenberg, Pablo E. D'Anna
  • Publication number: 20110289791
    Abstract: A material supply apparatus for supplying printing materials to a printing system is provided. The apparatus includes a container to store printing material and a source of electromagnetic radiation to cure remnant printing material within the container. The printing system may be a three-dimensional printing system for producing three-dimensional objects.
    Type: Application
    Filed: August 8, 2011
    Publication date: December 1, 2011
    Inventors: Guy MENCHIK, Eliahu M. Kritchman
  • Publication number: 20100236088
    Abstract: An RF timber drying apparatus comprises a pair of capacitor plates within the chamber and spaced from each other across the chamber such that a timber load can be contained into the chamber between the capacitor plates, a resonator circuit, and an RF generating circuit with adjustable power output for adjusting the voltage output from the RF generator to compensate for changes in moisture content as the timber dries.
    Type: Application
    Filed: August 8, 2008
    Publication date: September 23, 2010
    Inventor: Christopher Roy Paice
  • Publication number: 20100088920
    Abstract: A multi-stage harvest dryer (10) is provided for drying an agricultural harvest product (12), such as, for example, corn, sunflowers, beans, seeds, etc. The dryer (10) includes multiple drying stages (14a-14d) connected in sequence to dry a volume of harvest product (12) passed from one drying stage (14) to the next. Heat exchangers (16a, 16b, 18a, 18b, 18c) are located in the stages (14a-14c) to transfer heat to the harvest product (12) in each of the corresponding stages (14a-14d). The heat exchangers (16a and 16b) are radiant heat exchangers that efficiently heat the harvest product (12) via radiant heat transfer, with heaters (19a, 19b) being provided to maintain the heat exchangers (16a, 16b) within a desired temperature range. The heat exchangers (18a-18c) are condensers that efficiently recycle the heat within the dryer (10) by transferring heat back to the harvest product (12) by condensing water that has been evaporated from the harvest product (12) elsewhere in the dryer (10).
    Type: Application
    Filed: October 10, 2008
    Publication date: April 15, 2010
    Inventor: Albert M. LaRou
  • Patent number: 7698116
    Abstract: Manifolds are designed to deliver fluid through multiple orifices of the manifold such that for a given inlet fluid pressure the fluid being output from the multiple orifices has a desired mass flow profile. The desired mass flow profile includes a desired mass flow rate and a desired direction and distribution of flow in three-dimensional space. The manifold is first modeled as a two-dimensional representation to determine manifold parameters necessary to achieve the desired mass flow profile within the two dimensions. Then, the manifold is modeled as a three-dimensional representation based on the parameters previously determined for the two-dimensional representation to determine manifold parameters of the third dimension that are necessary to achieve the desired mass flow profile within the three dimensions.
    Type: Grant
    Filed: May 22, 2006
    Date of Patent: April 13, 2010
    Assignee: 3M Innovative Properties Company
    Inventors: James C. Breister, Andrew W. Chen, William P. Klinzing, Patrick J. Sager, Douglas C. Sundet, Matthew S. Linabery
  • 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
  • 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
  • Publication number: 20080022548
    Abstract: A method of conditioning an organic substrate is described The method involves heating the substrate using RF energy under desired pressure conditions in a constrained environment At a desired time point, the pressure is rapidly reduced causing any water present in the substrate to rapidly boil and convert to steam.
    Type: Application
    Filed: November 19, 2004
    Publication date: January 31, 2008
    Inventors: Nigel Paul Maynard, Anthony John Bergervoet
  • Patent number: 6995345
    Abstract: An RF heating system for generating precision stray RF fields that can be used to heat materials. The RF heating system includes an RF power supply for generating RF signals and an electrode apparatus that is coupled to the RF power supply. An electrode apparatus according to the present invention has many advantages over existing electrode apparatuses. For example, the electrode apparatus is easier to manufacture, easier to duplicate, easier to control the manufacturing tolerances on the electrode system, and easier to correctly place and design the resulting RF stray field.
    Type: Grant
    Filed: September 23, 2004
    Date of Patent: February 7, 2006
    Assignee: Codaco, Inc.
    Inventor: Timothy D. Gorbold
  • Patent number: 6874249
    Abstract: An electromagnetic energy spot curing system is provided which utilizes a template which moves relative to a source of radiation in the electromagnetic spectrum, such as an ultraviolet (UV) lamp. A channel is formed through the template of varying widths so that during the course of relative movement, different intensities of radiation emanating from the source is continuously passed through the channel and applied to a desired location, typically a curable material.
    Type: Grant
    Filed: August 9, 2002
    Date of Patent: April 5, 2005
    Assignee: Henkel Corporation
    Inventor: Mark Holmes
  • Publication number: 20040221473
    Abstract: An apparatus for drying a generally flat substrate that has been cleaned has a rotatable support for supporting the substrate, a substrate drying assembly, and a controller. The substrate drying assembly includes a substrate drying assembly support arm, an outlet for applying liquid to an upper surface of the substrate, and an outlet for applying a drying vapor to the upper surface of the substrate. The substrate drying assembly is configured to position the liquid applying outlet and to position the vapor applying outlet above a portion of the substrate. The controller causes the substrate drying assembly to be retracted over the upper surface of the substrate at a faster rate near a center of the substrate than near a periphery of the substrate.
    Type: Application
    Filed: June 10, 2004
    Publication date: November 11, 2004
    Inventors: Jeffrey M. Lauerhaas, Thomas J. Nicolosi, Paul Mertens, William Fyen
  • Patent number: 6812445
    Abstract: An RF heating system for generating precision stray RF fields that can be used to heat materials. The RF heating system includes an RF power supply for generating RF signals and an electrode apparatus that is coupled to the RF power supply. An electrode apparatus according to the present invention has many advantages over existing electrode apparatuses. For example, the electrode apparatus is easier to manufacture, easier to duplicate, easier to control the manufacturing tolerances on the electrode system, and easier to correctly place and design the resulting RF stray field.
    Type: Grant
    Filed: March 14, 2003
    Date of Patent: November 2, 2004
    Assignee: Codaco, Inc.
    Inventor: Timothy D. Gorbold
  • Patent number: 6751887
    Abstract: A system for dying material, in which system the material to be dried is located in a drying space isolated from its surroundings, in which space drying is done by way of negative pressure and a high-frequency electromagnetic field generated by electrodes. The drying space used is a drying batch-specific film package that is substantially separate from the rest of the equipment and that can be brought to an electromagnetic field generated by external electrodes. The film package serving as the drying space comprises nozzles, and for the period of drying, the package can be connected by tubes from the nozzles to equipment for removing moisture released from the material.
    Type: Grant
    Filed: September 9, 2003
    Date of Patent: June 22, 2004
    Assignee: Lahden Ammattikorkeakoulu
    Inventor: Kalle Hanhi
  • Patent number: 6725567
    Abstract: A method of drying honeycomb structural bodies in which a dielectric drying is performed by moving the honeycomb structural bodies in a dielectric drying apparatus under a condition such that vapor is flowed in the dielectric drying apparatus, includes the steps of: covering a surrounding area of the honeycomb structural body by a sheet with a constant space; and performing the dielectric drying under such a condition.
    Type: Grant
    Filed: February 1, 2002
    Date of Patent: April 27, 2004
    Assignee: NGK Insulators, Ltd.
    Inventors: Masashi Yano, Kenichi Tanaka
  • Patent number: 6679272
    Abstract: The present invention provides a megasonic cleaning apparatus configured to provide effective cleaning of a substrate without causing damage to the substrate. The apparatus includes a probe having one of a variety of cross-sections configured to decrease the ratio of normal-incident waves to shallow-angle waves. One such cross-section includes a channel running along a portion of the lower edge of the probe. Another cross-section includes a narrow lower edge of the probe. Another cross-section is elliptical. Another cross-section includes transverse bores originating in the lower edge of the probe. As an alternative to, or in addition to, providing a probe having a cross-section other than circular, the present invention may also provide a probe having a roughened lower surface.
    Type: Grant
    Filed: August 3, 2001
    Date of Patent: January 20, 2004
    Assignee: Verteq, Inc.
    Inventors: Mario E. Bran, Michael B. Olesen, Yi Wu
  • Patent number: 6539644
    Abstract: A method for controlling differential shrinkage during drying of ceramic honeycomb substrates by heating the ceramic honeycomb substrate with a vapor-insulating guard disposed substantially about the ceramic honeycomb substrate.
    Type: Grant
    Filed: September 15, 2001
    Date of Patent: April 1, 2003
    Assignee: Corning Incorporated
    Inventor: Carlos R. Araya
  • Publication number: 20030015218
    Abstract: Semiconductor wafers are cleaned using megasonic energy to agitate cleaning fluid applied to the wafer. A source of energy vibrates an elongated probe which transmits the acoustic energy into the fluid. The probe has a solid cleaning rod and a flared or stepped rear base. In one form, the probe is made of one piece, and in another, the rod fits into a socket in the base. This enables a rod to be made of material which is compatible with the cleaning solution, while the base may be of a different material. A heat transfer member acoustically coupled to the probe base and to a transducer conducts heat away from the transducer. A housing for the heat transfer member and the transducer supports those components and provides means for conducting coolant through the housing to control the temperature of the transducer. In another arrangement, an end of the housing is coupled between the transducer and the probe.
    Type: Application
    Filed: September 12, 2002
    Publication date: January 23, 2003
    Inventor: Mario E. Bran
  • Patent number: 6463677
    Abstract: Method and device for moisture profiling of fibrous material web to be dried in machines for manufacturing and/or refining of fibrous material web. Method includes subjecting fibrous material web to electromagnetic waves in the form of high-frequency waves. Device includes a fibrous material web support that supports travel of fibrous material web and a rotating cylinder. Rotating cylinder receives fibrous material web from fibrous material web support, and fibrous material web support is arranged outside fibrous material web in relation to the surface of the rotating cylinder. At least one electromagnetic wave transmitter is also included.
    Type: Grant
    Filed: September 18, 2001
    Date of Patent: October 15, 2002
    Assignee: Voith Sulzer Papiertechnik Patent GmbH
    Inventors: Robert Wolf, Markus Oechsle, Wolfgang Mayer, Roland Mayer, Frank Wegehaupt
  • Patent number: 6449871
    Abstract: A process chamber 25 for processing a semiconductor substrate, comprises a support for supporting a substrate 50. A gas distributor 90 provided for introducing process gas into the chamber 25, comprises a gas nozzle for injecting process gas at an inclined angle relative to a plane of the substrate 50, into the chamber 25. Optionally, a gas flow controller 100 controls and pulses the flow of process gas through one or more gas nozzles 140. An exhaust is used to exhaust the process gas from the chamber 25.
    Type: Grant
    Filed: September 8, 2000
    Date of Patent: September 17, 2002
    Assignee: Applied Materials Inc.
    Inventors: Arnold Kholodenko, Dmitry Lubomirsky, Guang-Jye Shiau, Peter K. Loewenhardt, Shamouil Shamouilian
  • Patent number: 6425190
    Abstract: A method and device for moisture profiling of a fibrous material web to be dried in machines for manufacturing and/or refining this web that includes subjecting the fibrous material web to electromagnetic waves in the form of microwaves and/or high-frequency waves.
    Type: Grant
    Filed: September 10, 1999
    Date of Patent: July 30, 2002
    Assignee: Voith Sulzer Papiertechnik Patent GmbH
    Inventors: Robert Wolf, Markus Oechsle, Wolfgang Mayer, Roland Mayer, Frank Wegehaupt
  • Patent number: 6423955
    Abstract: 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: Grant
    Filed: July 13, 2001
    Date of Patent: July 23, 2002
    Assignee: Heatwave Technologies Inc.
    Inventors: Glenn Craig Blaker, Terry Albert Enegren, Yiu Kwan (Eugene) Ho, Scott Ronald Spencer
  • Patent number: 6401356
    Abstract: A method of drying veneer sheets by continuously shingling discrete wood veneer-sheets to form a layup where the leading edges of adjacent sheets are offset by a distance X with the lower, veneer sheet leading in the direction of movement the one there above and continuously feeding the so formed layup in the direction of movement into a drier where the veneer sheets while still in the layup are dried. The dried veneer sheets are then separated into discreet dried veneer sheets and are thereafter individually tested.
    Type: Grant
    Filed: July 18, 2001
    Date of Patent: June 11, 2002
    Assignee: Weyerhaeuser Company
    Inventors: Mark Trelawny Churchland, Robert Leeson Pike, Norbert Kott
  • Patent number: 6346693
    Abstract: A grain containment vessel equipped with one or more antennas and a vapor extraction system is disclosed. An electromagnetic heating pattern is established throughout the grain volume elevating the bulk temperature, while an air flow is applied throughout the grain volume. The electromagnetic energy desorbs the water and increases the vapor pressure and the air flow carries the heat and water from the containment vessel. A controlled amount of electromagnetic energy is introduced into the grain volume to reduce or eliminate fungus infestation and increase insect mortality.
    Type: Grant
    Filed: December 14, 1999
    Date of Patent: February 12, 2002
    Assignee: KAI Technologies, Inc.
    Inventor: Raymond S. Kasevich
  • Patent number: 6243968
    Abstract: A turning device (8) for sludge and deposits (3) is proposed which moves along differing paths spread out on a floor (6), through the sludge or deposit (3). The turning device (8) can be used in a solar drier for sewage sludge or other deposits.
    Type: Grant
    Filed: November 17, 1999
    Date of Patent: June 12, 2001
    Inventors: Tilo Conrad, Markus Bux
  • Patent number: 6205676
    Abstract: An apparatus for removing particles from a surface of an article, such as a semiconductor wafer in a clean room. The particles are supplied with an electric charge. Subsequently, an ultrasonic wave or a gas stream is applied onto the surface of the article while an electric field is applied for driving away the electrically charged particles from the surface, thereby removing particles having a dimension smaller than 1 micrometer from the surface. The presence of a collecting member allows the removal of resulting, floating particles.
    Type: Grant
    Filed: August 10, 1998
    Date of Patent: March 27, 2001
    Assignee: Ebara Corporation
    Inventors: Toshiaki Fujii, Kikuo Okuyama, Manabu Shimada
  • Patent number: 6192599
    Abstract: A process for the drying of woven glass fabric to be used in a reinforcing laminate in sensitive electronic equipment is disclosed. The process adopts a drying technique of utilizing dielectric or radio frequency heating which results in a cleaner product.
    Type: Grant
    Filed: September 23, 1998
    Date of Patent: February 27, 2001
    Assignee: BGF Industries, Inc.
    Inventors: Michael I. Bryant, Charles E. Jones
  • Patent number: 6185839
    Abstract: A process chamber 25 for processing a semiconductor substrate, comprises a support for supporting a substrate 50. A gas distributor 90 provided for introducing process gas into the chamber 25, comprises a gas nozzle for injecting process gas at an inclined angle relative to a plane of the substrate 50, into the chamber 25. Optionally, a gas flow controller 100 controls and pulses the flow of process gas through one or more gas nozzles 140. An exhaust is used to exhaust the process gas from the chamber 25.
    Type: Grant
    Filed: May 28, 1998
    Date of Patent: February 13, 2001
    Assignee: Applied Materials, Inc.
    Inventors: Arnold Kholodenko, Dmitry Lubomirsky, Guang-Jye Shiau, Peter K. Loewenhardt, Shamouil Shamouilian
  • Patent number: 6079120
    Abstract: The invention relates to a method for making the drying finely divided materials, more effective in a suction drier provided with a fine porous suction surface, where the radii of the fine pores of the suction surface are essentially within the range of 0.5-2 micrometers, and in which method, of a slurry containing liquid and solids there is made a filter cake (2,12,22) onto a fine porous liquid suction surface constituting the filter surface of the filter medium (1,11,21), According to the invention, the filter cake (2,12,22) and an oscillator (6,15,25) are arranged, in relation to each other, so that in between the filter cake (2,12,22) and the oscillator (6,15,25), there is generated an acoustic field by virtue of a mechanical contact between the filter cake (2,12,22) and the oscillator (6,15,25) or a structural element (7,16,26) connected to the oscillator.
    Type: Grant
    Filed: June 4, 1999
    Date of Patent: June 27, 2000
    Assignee: Outokumpu Oyj
    Inventors: Bjarne Ekberg, Goran Norrg.ang.rd, Juan A. Gallego Juarez, German Rodriguez Corral, Luis Elvira Segura
  • Patent number: 6063751
    Abstract: A process for preparing a low density detergent composition is disclosed. The process includes the steps of agglomerating a detergent surfactant paste and dry starting detergent material in a high speed mixer to obtain detergent agglomerates wherein the detergent agglomerates include at least 3% by weight water and dielectrically heating the detergent agglomerates so as to form the detergent composition having a density of below 600 g/l.
    Type: Grant
    Filed: April 5, 1999
    Date of Patent: May 16, 2000
    Assignee: The Procter & Gamble Company
    Inventors: Paul Amaat France, Larry Rudolph Genskow, Wayne Edward Beimesch