Treating Agent Is Steam Patents (Class 34/411)
  • Patent number: 11484921
    Abstract: A biomass stabilization assembly for managing soft cell organic waste ingredients. Prescribed ingredients are introduced into an inner chamber of a housing, such as through a top hatch, with subsequent unloading of a completed and chemically inert product occurring through a concealed chute and a rear port exhausting H2O gas vapor. The invention includes associated control and processor based components and operates outdoors or indoors of individual facilities and may further incorporate software protocols and algorithms which permit any status monitoring or modification of operational parameters as determined by sensor inputs.
    Type: Grant
    Filed: October 18, 2021
    Date of Patent: November 1, 2022
    Inventor: Kenneth B. Lingo
  • Patent number: 10596719
    Abstract: The present invention relates methods for heat treatment of wood. The invention further relates to wood obtainable by the methods of the invention as well as the use of the method for preparing treated wood. The method comprises the step of pressurising said airtight tank (4) to a predefined pressure (P1) in order to establish a pressurised environment for said wood (6). The method comprises the step of placing said wood (6) in an airtight tank (4) and heating said wood (6) to a predefined temperature (T2, T3). The predefined pressure (P1) is kept so high that the water in the wood (6) cannot evaporate at the predefined temperature (T2, T3).
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: March 24, 2020
    Assignee: DANISH WOOD TECHNOLOGY A/S
    Inventors: Claus Holm, Kell Thomas
  • Patent number: 10344218
    Abstract: A process for the thermal-chemical modification treatment of wood is described, in which such a modification is obtained through multiple chemical reactions of the substances comprising the wood structure generated by exposing the wood to temperatures at which the pyrolysis phenomenon begins, i.e., in the range of 180° C.-240° C., in a vacuum autoclave-cell while always maintaining the internal pressure lower than the atmospheric pressure, in a range of values of 70-350 mBar of absolute pressure, consisting in the steps of pre-heating, actual heat treatment, and cooling of a wood mass.
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: July 9, 2019
    Assignee: WDE MASPELL S.R.L.
    Inventor: Ernesto Pagnozzi
  • Patent number: 8997376
    Abstract: A process of drying moisture containing material having a tendency to create dust when dried, said process including the steps of providing said material in a heated chamber having a steam containing atmosphere at a temperature above the dewpoint of the steam, recirculating a hot gas including a portion of the steam through said chamber in order to evaporate moisture from the material to a predetermined level of dryness.
    Type: Grant
    Filed: June 18, 2012
    Date of Patent: April 7, 2015
    Assignee: Pacific Edge Holdings Pty Ltd
    Inventors: Roderick Howard Carnegie, Brendon Gerrard Cooper, William John Stevens
  • Publication number: 20150082656
    Abstract: The invention concerns a method for the recovery of thermal energy from a steam dryer 2 with a closed circulation 2.1 that produces excess steam SS characterised in that the excess steam SS is condensed to an unclean condensate UC in a steam regeneration unit 3 and in that thermal energy in the unclean condensate UC is recovered by being transferred to a district heating medium HW in a heat exchanger 4 for district heating. The invention concerns also a system for the recovery of thermal energy from a steam dryer 2 with a closed circulation 2.1.
    Type: Application
    Filed: March 21, 2012
    Publication date: March 26, 2015
    Applicant: OUTOTEC OYJ
    Inventor: Bengt-Olof Naslund
  • Patent number: 8869422
    Abstract: The present invention provides methods and apparatus for a Marangoni vapor knife assembly. The assembly includes a base having a channel extending longitudinally through the base and a plurality of passages extending laterally from the channel toward an outer face of the base; a top plate adapted to be removeably coupled to the base with an outer face flush with the outer face of the base; and a shim adapted to be disposed between the base and the top plate and further adapted to form a plurality of spray orifices in the assembly. Numerous additional features are disclosed.
    Type: Grant
    Filed: April 27, 2012
    Date of Patent: October 28, 2014
    Assignee: Applied Materials, Inc.
    Inventors: Edwin Velazquez, Allen L. D'Ambra, Jim K. Atkinson
  • Patent number: 8844160
    Abstract: A modular system according to one embodiment of the invention for treating a fabric load comprises a first module and a second module. The first module can include a chamber having an interior for holding a fabric load, and the second module can have at least one of a fluid delivery system, a fluid removal system, and a fluid recycling system. The modular system can further include conduits for coupling the systems of the second module with the first module.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: September 30, 2014
    Assignee: Whirlpool Corporation
    Inventors: Bruce C. Beihoff, Karl D. McAllister, Janice M. Kaeding, Tremitchell Wright, Alexander V. Minkin, Joel A. Luckman, Colleen M. Doyle
  • Patent number: 8595955
    Abstract: The present invention relates to a laundry dryer. The laundry dryer has a drum rotatably provided to a cabinet, a hot air heater heating air to supply hot air to the drum, a steam generator selectively supplying steam to the drum, and a water supply source provided to one side of the cabinet. And, the water supply source has an accommodating part for storing water supplied to the steam generator and a water supply means for supplying the water within the accommodating part to the steam generator.
    Type: Grant
    Filed: July 27, 2007
    Date of Patent: December 3, 2013
    Assignee: LG Electronics Inc.
    Inventors: Sang Hun Bae, Chul Jin Choi, Dong Hyun Kim, Young Bok Son
  • Patent number: 8365438
    Abstract: The present invention relates to a dryer and a method for controlling the same. The dryer includes a selectably rotatable drum (20), a hot air heater (90) for heating air to supply hot air to the drum (20), a steam generator (200) for generating steam to supply the steam to the drum (20), and a water supply source (220) for supplying water to the steam generator, thereby removing wrinkles from clothes, effectively.
    Type: Grant
    Filed: May 23, 2007
    Date of Patent: February 5, 2013
    Assignee: LG Electronics Inc.
    Inventors: Chul Jin Choi, Chang Woo Son, Sang Hun Bae, Jea Hyuk Wee, Young Bok Son, Young Soo Kim, Dong Hyun Kim, Chong Ryu, Dae Bong Yang
  • Patent number: 8302326
    Abstract: A steam dryer control method controls the amount of water supplied to a heater to adjust an amount of steam. The steam dryer control method includes turning on a steam heater, turning on a water supply valve and counting the number of lapses of unit water supply duration at any time when the unit water supply duration elapses, and rotating a drum when the number of lapses of the unit water supply duration reaches a preset number.
    Type: Grant
    Filed: August 27, 2009
    Date of Patent: November 6, 2012
    Assignee: Daewoo Electronics Corporation
    Inventor: Ju Dong Lee
  • Patent number: 8286367
    Abstract: A system for continuous (re-)drying of wood pieces. A conveyor arrangement receives and carries the wood pieces in file following a course. A moisture content of each wood piece travelling on the conveyor arrangement is measured during the course. The wood pieces whose measured moisture content are above a target content are diverted towards a drying equipment, in particular by high-frequency, whereas the other wood pieces continue their course on the conveyor arrangement. The drying equipment removes a moisture portion from the diverted wood pieces. The moisture contents of the processed wood pieces are again measured. The pieces whose moisture content dropped below the target content are routed towards the conveyor arrangement whereas the other pieces are routed in the drying equipment for a re-drying.
    Type: Grant
    Filed: July 9, 2008
    Date of Patent: October 16, 2012
    Assignee: Hydro-Quebec
    Inventors: James Kendall, Sylvain Chénard, Vincent Lavoie
  • Patent number: 8108074
    Abstract: A method includes determining how to adjust one or more manipulated variables using at least one model. The one or more manipulated variables are associated with a sugar dryer. The method also includes generating one or more control signals to control one or more controlled variables associated with the sugar dryer. The one or more controlled variables include an outfall temperature associated with the sugar dryer, and the one or more manipulated variables include a rate at which wet material is provided to the sugar dryer. The sugar dryer could include multiple sugar dryers. At least two of the sugar dryers could operate using different fuels. The one or more control signals could be generated to control the rates at which the wet material is provided to the multiple sugar dryers based on costs associated with the different fuels.
    Type: Grant
    Filed: February 12, 2008
    Date of Patent: January 31, 2012
    Assignee: Honeywell International Inc.
    Inventor: Howard M. Boder
  • Patent number: 7850904
    Abstract: An object of the present invention is to continuously feed an object to be treated to a high-pressure reactor which treats the object to be treated containing 10 mass % or more of water under high pressure, while preventing backflow of a high-pressure atmosphere from the high-pressure reactor. This is embodied by making a configuration such that the object to be treated is fed to the high-pressure reactor connected to a discharge port of a screw feeder which is provided with a feed unit for the object to be treated and the discharge port on one end side and the other end side respectively and forms a high-pressure atmosphere pressurized to, for example, 2 MPa or higher, while air-tightness between the high-pressure atmosphere and the one end side of the screw feeder is maintained by a sealing action of an accumulation compressed on the other end side of the screw feeder.
    Type: Grant
    Filed: June 2, 2004
    Date of Patent: December 14, 2010
    Assignee: The Japan Steel Works, Ltd.
    Inventors: Katsuaki Osato, Muneo Omura, Yoshinori Suto, Koji Tamura, Masao Tsurui, Takeshi Yamaguchi, Jin Ogawa, Yoshihiko Iwamoto, Jun Kakizaki
  • Patent number: 7846373
    Abstract: A method for treating a wooden material includes applying steam and vacuum to the wooden material.
    Type: Grant
    Filed: October 3, 2005
    Date of Patent: December 7, 2010
    Assignee: Xorella AG
    Inventors: Peter R. Philipp, Fritz Steiner
  • Publication number: 20080005923
    Abstract: An apparatus and method for drying instruments using superheated steam. The apparatus comprises a chamber for receiving the instruments, a distribution means for distributing superheated steam within the chamber and an exhaust means for purging vaporized moisture from the chamber. The chamber has at least one inlet port which is connected to the distribution means. The method comprises sterilizing the instruments using saturated steam generated by the steam generation means and drying the instruments using superheated steam generated by the steam generation means to vaporize moisture within the chamber and purging the vaporized moisture from the chamber using the exhaust means.
    Type: Application
    Filed: July 7, 2006
    Publication date: January 10, 2008
    Inventors: Arthur Zwingenberger, Gabriel Gheorghe Naghi, David Bryant Snaith, Andy Kwan-Leung Sun, Michel Stanier
  • Patent number: 7146747
    Abstract: A multichamber timber drying kiln in which different conditions are maintained in each chamber and methods of drying timber using such a kiln. In one aspect timber is rapidly heated within a first chamber (2; 202; 207) and then transferred to a further chamber (3; 203; 208) for further drying. Timber may be transferred from the first chamber (2; 202; 207) when the moisture content of the timber approaches the fibre saturation point A preheating chamber (1; 201; 206) may be provided to preheat the timber before passing to the first chamber (2; 202; 207). A conditioning chamber (4; 204; 209) may be provided after the further chamber (3; 203; 208) to condition the timber. Energy transfer means (49–53; 54–58) may be provided to transfer energy between chambers.
    Type: Grant
    Filed: September 25, 2001
    Date of Patent: December 12, 2006
    Assignee: Windsor Engineering Group
    Inventors: William Paul Studd, Vaughan Raymon Furniss, Peter Gibbs
  • Patent number: 7125516
    Abstract: A method of sterilizing and drying a dialyzer or other device, wherein a vacuum drying phase is interrupted by interspersed pulses of air or other gas. The pulses lessen the evaporative cooling effect, to thereby reduce differential shrinkage that can structurally damage the dialyzer.
    Type: Grant
    Filed: April 23, 2003
    Date of Patent: October 24, 2006
    Assignee: Fresenius USA, Inc.
    Inventors: Marion Andersen, Marvin Lyon, G. Neivell Allan, Wade Paskett
  • Patent number: 6865821
    Abstract: A lumber drying kiln employs outside air pressure uses a flexible collapsing bag or cover alone or in combination with walls. The collapsing bag seals against a base to maintain the vacuum. The air pressure against the flexible top keeps the lumber layers from warping or cupping during drying. The lumber stack has alternating layers of hot plates or stickers separating layers of lumber. A bag having an open bottom and made of nylon-reinforced rubber or other strong flexible material is placed over the wood and sealed to the stainless steel platform. A vacuum pump is connected with the bag by means of a manifold and operated to remove air from the enclosed lumber stack, the vacuum strengthening the seal between the base and the bottom of the bag. This chamber design is easily scaled up or down to provide a desired drying capacity.
    Type: Grant
    Filed: August 5, 2003
    Date of Patent: March 15, 2005
    Inventor: John R. Merschat
  • Patent number: 6782638
    Abstract: A method for increasing the drying capacity of a steam group (6) in a drying section of a pulp or paper machine. According to the method, a main steam flow (3) having a first steam pressure is fed to the steam group (6), the main steam flow (3) is conducted to at least one thermocompressor (9), which is driven by motive steam (4) having a second steam pressure, which is driven by motive steam (4) having a second steam pressure, which is higher than the first steam pressure, and the output steam (13) of said at least one thermocompressor (9) is fed to the steam group (6), the steam pressure of the steam that is fed to the steam group (6) being higher than the first steam pressure.
    Type: Grant
    Filed: May 14, 2002
    Date of Patent: August 31, 2004
    Assignee: Stora Enso AB
    Inventor: Torsten Svenland
  • Patent number: 6630031
    Abstract: By a simple apparatus construction and process, it is made possible to “clean precisely” a surface at the molecular/atomic level, and the purification degree of the surface processed minutely is made into 1012 molecules/cm2 or less. A steam-spraying nozzle is disposed such that a line slit nozzle is in a diameter direction, and mist-containing steam is sprayed onto the surface of a substrate. Thereby, particles in the steam-spraying surface (the particles were made to adhere by dipping the substrate in a solution containing polystyrene (particle diameter of 0.6 &mgr;m) or alumina (particle diameter of 0.3 &mgr;m to 0.5 &mgr;m) particles at 105 particles/ml.) are removed by about 90% to 95% after ten-seconds spraying, and by 99% or more, that is, to less than the detection limit of a wafer inspection device, after twenty-seconds spraying.
    Type: Grant
    Filed: October 12, 1999
    Date of Patent: October 7, 2003
    Assignee: Sipec Corporation
    Inventors: Nobuhiro Miki, Takahisa Nitta
  • Patent number: 6557267
    Abstract: A heat treatment process for fiber feedstock, comprises repeatedly subjecting the bale to a reduced pressure atmosphere followed by the introduction of steam which permeates the bale. The interior of the bale may ultimately reach a temperature of about 80° C., which conditions and sanitizes the cotton fibers. Reduced pressure in the range of 20-200 mbar and steam treatment time in the order of 5 minutes can be employed.
    Type: Grant
    Filed: April 27, 2001
    Date of Patent: May 6, 2003
    Inventor: Freddy Wanger
  • Publication number: 20030005597
    Abstract: Wood is disposed in a container having at least one flexible wall, and vacuum is applied to the container. The flexible wall presses against a surface of the wood. The container and wood are them immersed in a heated bath (e.g. comprising water, air, or other fluids). The wood is heated by conduction through the flexible wall, and maintained at accurate temperature by the bath. The wood is thereby rapidly dried by heat and vacuum. The present invention is energy efficient, and provides rapid, uniform drying of the wood without checking.
    Type: Application
    Filed: June 28, 2002
    Publication date: January 9, 2003
    Inventors: Zhangjing Chen, Fred M. Lamb
  • Patent number: 6397492
    Abstract: The present invention relates to an apparatus and method for separating and processing solid waste, often but not necessarily from municipalities (and so will be generically referred to herein as municipal solid waste or “MSW”), into useful products, and for reducing biohazards and putrid odors derived from MSW. The MSW is loaded into an elongated, generally cylindrically shaped rotating pressure vessel and is subjected to heat and pressure by the application of steam in specified amounts to break down the organic portion of the MSW into a cellulose feedstock, or a de-manufactured paper product, of uniform particle size and density. This product is then easily separable from other constituents of MSW, such as glass, aluminum and other metals, and plastics. The recyclables are recovered and sold in the market. The waste water from the process is reduced by processing through a water vamping apparatus.
    Type: Grant
    Filed: May 23, 2000
    Date of Patent: June 4, 2002
    Assignee: MSW Patents, Inc.
    Inventor: Donald E. Malley
  • Patent number: 5970624
    Abstract: The invention aims to provide a lumber drying method which can dry lumbers in a short period without causing cracks and a lumber impregnation method to permeate processing agents deep into the lumbers at a low cost. The lumber drying method comprises a process to place lumbers in an airtight container and to heat them, a process to vacuum the inside of the airtight container, and a process to restore the air pressure after the vacuuming process. And, the lumber impregnation method comprises a process to heat lumbers, a process to place the heated lumbers under a vacuumed pressure, a process to immerse the heated lumbers in processing agents under the vacuumed pressure, and a process to restore the pressure of the lumbers immersed in the processing agents under the vacuumed pressure to the air pressure, and to immerse the lumbers in the processing agents under the air pressure.
    Type: Grant
    Filed: December 3, 1997
    Date of Patent: October 26, 1999
    Assignee: Common Facility Co-Operatives Forest Nishikawa
    Inventor: Kazuo Moriya
  • Patent number: 5675912
    Abstract: A dryer system has a combustion chamber, a dryer and a separator. The combustion chamber supplies heated gas to the dryer. Wet material is mixed with the heated gas in the dryer. The dried material is then separated from the gas in the separator. A method is used to increase the safety of the system. The method includes sensing the temperature of the dryer system. Further, if the temperature reaches a predetermined value, the combustion chamber is extinguished. Additionally, upon the temperature reaching the predetermined value, steam is introduced into the dryer system.
    Type: Grant
    Filed: March 25, 1996
    Date of Patent: October 14, 1997
    Assignee: Beloit Technologies, Inc.
    Inventor: Stanley P. Thompson
  • Patent number: 5656178
    Abstract: A method is provided for the treatment of contaminated materials such as impounded sludges and contaminated soils by thermal desorption wherein a solid matrix is subjected to the action of superheated steam in a closed vessel, a gas stream comprising superheated steam is recirculated to the vessel and recirculation of the superheated steam is continued until organic constituents are separated therefrom to predetermined concentrations that are environmentally insignificant and within the limits prescribed by governmental regulations.
    Type: Grant
    Filed: April 29, 1993
    Date of Patent: August 12, 1997
    Assignee: American Color And Chemical Corp.
    Inventors: Primo Marchesi, George M. Goyak
  • Patent number: 5642671
    Abstract: A method of printing a material web includes the steps of applying ink to the material web, subsequently drying the material web with the use of heat and subsequently drying the material web, and, after cooling and prior to further processing, moistening the material web while simultaneously applying heat to the material web, and subsequently once again cooling the material web. An apparatus for carrying out the method includes, in a travel direction, a printing unit, a drying section following the printing unit, a cooling section following the drying section, a moistening section following the cooling section, and an after-cooling section following the moistening section.
    Type: Grant
    Filed: April 24, 1996
    Date of Patent: July 1, 1997
    Assignee: V.I.B. Apparatebau GmbH
    Inventor: Stefan Winheim
  • Patent number: 5537759
    Abstract: A process for the drying of water-containing materials which are suitable for use as wetting agents, detergents or cleaning products. An aqueous solution, emulsion or suspension of the materials is dried using superheated steam as the drying gas wherein the drying gas is recycled to the drying zone after removal therefrom of evaporated water and the energy required for the evaporation of water is supplied to the superheated steam by heat exchangers.
    Type: Grant
    Filed: October 12, 1994
    Date of Patent: July 23, 1996
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Wilfried Raehse, Johann-Friedrich Fues, Otto Koch, Joerg-Martin Schmidt
  • Patent number: 5537760
    Abstract: In a combined system or method for extending the life expectancy of an article of cellulosic material such as a book or other paper, the book or other paper is put in preservation storage at subnormal temperature and subnormal humidity. The resulting loss of flexibility of the paper is remedied upon withdrawal of the book or other paper from storage through its accelerated simultaneous exposure to a partial vacuum of about 5 to 50 torr and to water vapor; a partial vacuum of about 12 to about 30 torr is preferred. This procedure restores both the temperature and moisture content of the paper to normal values.
    Type: Grant
    Filed: November 22, 1994
    Date of Patent: July 23, 1996
    Assignee: The United States of America as represented by the Librarian of Congress
    Inventor: Donald K. Sebera
  • Patent number: 5392530
    Abstract: A three step process to season lumber to reduce cracks in the lumber and reduce warping of the lumber. In a first step, the lumber is piled up into a pressure vessel for seasoning. The vessel is charged with saturated steam, the pressure of which fluctuates within the pressure vessel. This is done to enable any contained water within the vessels capillary tubes and cell cavities to evaporate at the same rate. Thereafter, as a second step the lumber is taken out of the pressure vessel in order to allow free water to evaporate from the lumber. The lumber in a third step is placed into the pressure vessel again and charged by a super saturated steam by using a flow of super saturated steam until remaining water is evaporated, thus forming lumber that is seasoned.
    Type: Grant
    Filed: November 4, 1992
    Date of Patent: February 28, 1995
    Inventor: Hyogo Izumi