Gas Or Vapor Flow Varied During Treatment Patents (Class 34/492)
  • Patent number: 10464397
    Abstract: A thermal system with high aspect ratio vents for a vehicle. The thermal system comprises: at least one HVAC unit; a first vent with a first high aspect ratio, the first vent coupled to the HVAC unit and configured to generate a first plane of air in a passenger compartment of the vehicle; and a second vent coupled to the HVAC unit and configured to generate a second plane of air in the passenger compartment, the second vent positioned so that the second plane of air intersects the first plane of air.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: November 5, 2019
    Assignee: Tesla, Inc.
    Inventors: Giacomo Castiglioni, Raffaele N Russo, Joseph Mardall, Nicholas Mancini
  • Patent number: 9879372
    Abstract: A clothes dryer configured to cause air to flow through a drying chamber, an exhaust passage (an air passage) 103 and a filter by a blower to dry clothes includes a heat pump installed in the exhaust passage (103) and having a heat exchanger (122) including a refrigerant pipe (132) and a pin, and a flow velocity sensor (107) of airflow having a hot thermistor (a heat generating body) 107a and a temperature compensation thermistor (a temperature detecting body) 107b and installed downstream from the heat exchanger (122), wherein the thermistors (107a and 107b) are disposed at a refrigerant pipe (132) of the heat exchanger (122) in parallel.
    Type: Grant
    Filed: June 18, 2014
    Date of Patent: January 30, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Eiji Wakizaka, Tomohito Ajiki, Yuji Eifuku
  • Publication number: 20140047734
    Abstract: A prebake equipment for drying a substrate (105) and an air discharge method, the prebake equipment comprising: a bottom plate (105), a periphery frame (101) and an upper cover plate, the bottom plate (105) and the upper cover plate being spaced from each other, the periphery frame (101) being provided between the bottom plate (105) and the upper cover plate such that the bottom plate (105), the periphery frame (101) and the upper cover plate define a cavity, wherein discharge holes are provided at the periphery frame (101) and a filler (104) for filtering moisture and dust in the air stream is provided between the bottom plate (105) and the periphery frame (101).
    Type: Application
    Filed: November 9, 2012
    Publication date: February 20, 2014
    Applicants: HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xudong Cao, Seong Cho Lee, Dongdong Yin, Kun Li, Xinxiao Hua, Lifeng Wu, Chao Li, Wenxu Wang
  • Publication number: 20130145647
    Abstract: A method for dehydrating an evaporator of an air conditioner of a vehicle is provided to drive a blower motor depending on the humidity of the evaporator while monitoring a dry state of the evaporator, thus allowing the evaporator to be appropriately dried and preventing a problem from being caused by the discharge of a battery, therefore minimizing an odor generated by the air conditioner of the vehicle owing to effective drying of the evaporator of the air conditioner, and consequently considerably improving the marketability of the vehicle.
    Type: Application
    Filed: September 6, 2012
    Publication date: June 13, 2013
    Applicants: Kia Motors Corp., Hyundai Motor Company
    Inventors: Tae Han Kim, Jun Kyu Park, Moo Yong Kim
  • Patent number: 8365434
    Abstract: A method for controlling the operation of a dryer comprising dispensing a treating chemistry from a dispensing system into a treating chamber of the dryer based on an output from the environmental drying sensor.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: February 5, 2013
    Assignee: Whirlpool Corporation
    Inventors: James P. Carow, Ryan R. Bellinger, Francesco Jatta
  • Publication number: 20120317832
    Abstract: Energy efficiencies are achieved in a dryer or washer/dryer by selectively varying temperature ranges, time periods, heater power levels, and air flow rates. Efficiency improvements on the order of 16% were obtained over typical constant power, constant temperature, timed drying cycles by varying one or more of these parameters. Efficiencies can also be improved by drawing air from alternative warm sources such as an attic or warm external environment, or by heat recovery from dryer exhaust passages.
    Type: Application
    Filed: June 16, 2011
    Publication date: December 20, 2012
    Inventors: Venkat Ramprasad Lakkineni, Martin Mitchell Zentner, Sanjay Manohar Anikhindi, Steve Bernard Froelicher, Nicholas Okruch, JR., Michael Thomas Beyerle, Joshua Stephen Wiseman, Nemetalla Salameh
  • Publication number: 20120279081
    Abstract: The present invention provides a device and a method, wherein the process conditions can be kept constant in a device for processing tobacco. The device comprises a combining device for combining the tobacco to be processed and a process gas and which is connected to a discharge device for discharging a first quantity of the process gas and a supply device for supplying a second quantity of the process gas; the device having at least one control device for controlling the first quantity of the discharged process gas and/or the second quantity of the supplied process gas.
    Type: Application
    Filed: August 25, 2010
    Publication date: November 8, 2012
    Applicant: JI INTERNATIONAL, S.A.
    Inventors: Noel John Totten, Marc Billette, Elmar Schloeder, Takuji Harai, Oleg Fediushin, Johannes Maerz, Andreas Otto
  • Publication number: 20120227280
    Abstract: A drying apparatus for temporary location within a damp or waterlogged room is disclosed. The apparatus includes sensors to sense the level of temperature and humidity within the room, a heater to provide heat for the room, an air circulation fan for selectively circulating heated air within the room or selectively exhausting warm and humid air from the room and for allowing outside ambient air into the room. The apparatus being adapted to cyclically continue until the sensed humidity reaches a required level, the apparatus thereafter indicating, directly or indirectly, the completion of the drying process. A method of drying a room using such apparatus is also disclosed which employs a technique whereby the rate of change of the temperature increase is used to determine when humid air should be exhausted from the room. A time limit can also be use to determine when said exhausting takes place.
    Type: Application
    Filed: March 6, 2012
    Publication date: September 13, 2012
    Applicant: DBK DAVID + BAADER GMBH
    Inventors: Ian David Hopkin, Jonathan Robert Jayne
  • Publication number: 20120174430
    Abstract: A method for operating a clothes treating apparatus comprising a hot air supplying unit provided with a heater and a blowing device, and having a drying function of drying clothes by supplying hot air into a drum by use of the hot air supplying unit, includes rotating the drum with the clothes introduced therein, and supplying hot air into the drum by using the heater and the blowing device while the drum is rotated, wherein an air flow rate supplied by the blowing device changes during the hot air supplying step.
    Type: Application
    Filed: January 6, 2012
    Publication date: July 12, 2012
    Inventors: Minji KIM, Hyojin KO, Yongcheol JIN, Sanghun BAE
  • Publication number: 20120144693
    Abstract: A heat pump type clothes dryer compensates for pressure loss caused by a radiator to increase the flow rate of air passing around the radiator, and suppressing introduction of ambient air through gaps formed in air flow lines to avoid degradation in drying capacity, while avoiding an increase in the power consumption or noise of a fan. The clothes dryer includes a drum to accommodate clothes, an air suction or intake line to suck air into the drum, an air exhaust line to exhaust air from the drum, a heat pump circuit including a compressor, a radiator, a pressure reducer, and a heat absorber, where the heat absorber is provided in the air exhaust line, and the radiator is provided in the air suction or intake line, a first blowing mechanism provided in the air exhaust line, and a second blowing mechanism provided in the air suction or intake line.
    Type: Application
    Filed: December 8, 2011
    Publication date: June 14, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Eiji WAKIZAKA
  • Publication number: 20120084995
    Abstract: A system for controlling a clothes dryer whereby the user selects a desired time of drying and the heat used to dry the clothes is adjusted during the operational time such that the clothes are not dried unnecessarily quickly. Accordingly, the energy efficiency of the clothes dryer using this invention is improved compared to the prior art.
    Type: Application
    Filed: September 12, 2011
    Publication date: April 12, 2012
    Inventor: PETER SAMUEL VOGEL
  • Publication number: 20110271551
    Abstract: A forced heated air dryer for dental/medical instruments may be used to dry instruments prior to sterilization to prevent water corrosion and the discoloration of instruments. The dryer may also be used to dry damp instruments after the sterilization process to ensure the instruments and packaging are dry prior to storage. This may prevent corrosion and discoloration of instruments between usages. The dryer may allow a medical/dental office to dry their instruments in a single automated step not combined with washing, providing for an economical, efficient and safe solution to dry instruments.
    Type: Application
    Filed: May 3, 2011
    Publication date: November 10, 2011
    Inventor: Robert S. Pearce
  • Patent number: 7900373
    Abstract: The present invention provides a method for conditioning semiconductor wafers and/or hybrids having the steps: preparation of a space (1) which is at least partially enclosed and has a wafer/hybrid holding device (10) which is located therein and has the purpose of holding a semiconductor wafer and/or hybrid; and conduction of a dry fluid through the wafer/hybrid holding device (10) in order to heat-treat the wafer/hybrid holding device (10); wherein at least a portion of the fluid leaving the wafer/hybrid holding device (10) is used to condition the atmosphere within the space (1). The invention also provides a corresponding device for conditioning semiconductor wafers and/or hybrids.
    Type: Grant
    Filed: April 15, 2003
    Date of Patent: March 8, 2011
    Assignee: ERS Electronic GmbH
    Inventor: Erich Reitinger
  • Patent number: 7735239
    Abstract: A drying machine according to the present invention includes an interface unit connected to a separate washing machine with a data communication line for receiving load information from the washing machine, a rotatable drum containing a load of wet clothes which are previously washed by the washing machine, and an air supply system coupled to the drum for supplying dry air into the drum. The machine further includes a heater coupled to the air supply system for heating the dry air, and a dryer controller generating a control signal to the heater in accordance with a set of operation values which are determined based on the load information.
    Type: Grant
    Filed: June 20, 2006
    Date of Patent: June 15, 2010
    Assignee: LG Electronics Inc.
    Inventors: Hae Deog Jeong, In Haeng Cho, Jae Suk Yang
  • Patent number: 7343700
    Abstract: A method and apparatus for drying particulate material in which the drying and discharge of the particulate material may be superimposed in such a way as to permit continuous drying of particulate material even when the supply is not continuous. The quantity of heat supplied to the particulate material is controlled as a function of signals (i; hi) from temperature sensors mounted in the particulate material, which signals represent temperatures detected locally, and also as a function of a preselectable residence time (Tv) of the particulate material at a temperature within a preselectable target temperature range (min, max) and a preselectable throughput of dried particulate material such that the particulate material discharged has a temperature within the target temperature range (min, max) at least during the residence time (Tv).
    Type: Grant
    Filed: January 28, 2005
    Date of Patent: March 18, 2008
    Assignee: Mann & Hummel ProTec GmbH
    Inventor: Michael Zlotos
  • Patent number: 7194822
    Abstract: A system and method are provided for controllably drying moisture-containing work pieces. The system comprises a drying compartment defining an internal workspace for housing and drying the moisture-containing work pieces by introducing heat into the internal workspace and heating the moisture-containing work pieces located in the internal workspace by removing heated moisture from the work pieces and absorbing the heated moisture into the air in the workspace to produce heated humidified air. A multi-directional air flow heat exchanger is employed for receiving heated humidified air and atmospheric air and for recycling waste heat from exhaust air from the drying compartment, and for heating the atmospheric air in the heat exchanger using recovered heat extracted from the heated humidified air to a temperature higher than ambient temperature thereby reducing energy costs and drying time and preventing the loss of circulation air.
    Type: Grant
    Filed: May 11, 2004
    Date of Patent: March 27, 2007
    Assignee: American Wood Dryers, Inc.
    Inventor: Gary L. Kolari
  • Patent number: 7176415
    Abstract: A heating method and apparatus for a band-shaped body transported in a constant conveying direction in a heating zone so as to heat the band-shaped body is provided. The method includes detecting whether a portion of the band-shaped body at which width and/or thickness changes is passing through the heating zone setting a first supplied heat quantity, and supplying heat with the first supplied quantity to the band-shaped body in the heating zone; and setting a second supplied heat quantity, and supplying heat with the second supplied quantity to the band-shaped body in the heating zone. The method also includes increasing or decreasing at least one of air flow rate or temperature of the heated air stream. The apparatus includes an air flow ratio changing unit which maintains a constant sum of introduced air stream flow rate and bypass air stream flow rate.
    Type: Grant
    Filed: December 3, 2004
    Date of Patent: February 13, 2007
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kiyoshi Kamitani, Kenji Hayashi
  • 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: 6938359
    Abstract: A web-formed material (1), preferably a pulp web (1), is passed through a drying plant, comprising blow boxes arranged in a plurality of drying decks, floating above lower blow boxes, which at their upper sides blow out hot process air against the web-formed material (1). Water, in the form of steam, escaping from the web-formed material (1) is discharged by the process air, at least part of which is recirculated (43) whereas the non-recirculated process air is discharged as exhaust air (41) and is replaced by a corresponding portion of supply air (42) with a low water content. The temperature of the process air is controlled (4).
    Type: Grant
    Filed: January 16, 2002
    Date of Patent: September 6, 2005
    Assignee: Andritz Technology and Asset Management GmbH
    Inventors: Jonas Birgersson, Per Holmberg
  • Patent number: 6842998
    Abstract: A system, method, and apparatus for supplying a gas-liquid vapor to a process tank for performing semiconductor manufacturing. In one aspect, the invention is a method of supplying a gas-liquid vapor to a process tank comprising: supplying a gas stream through at least one hydrophobic tube; exposing the outside surface of the hydrophobic tube to a liquid so that the liquid permeates the hydrophobic tube and enters the gas stream, forming a gas-liquid vapor inside the tube; and transporting the gas-liquid vapor to the process tank. In another aspect, the invention is an apparatus for supplying a gas-liquid vapor to a process tank comprising: at least one hydrophobic tube adapted to carry a gas; and a housing forming a chamber that surrounds the tube, the chamber adapted to receive a liquid that can permeate the tube, forming a gas-liquid vapor.
    Type: Grant
    Filed: April 5, 2002
    Date of Patent: January 18, 2005
    Assignee: Akrion LLC
    Inventors: Ismail Kashkoush, Richard Novak, Larry Myland
  • Patent number: 6729042
    Abstract: A method is described for enhancing mass and heat transport of fluids in a fine pore structure through an appropriate modulation of the fluid pressure. For example, in an air drying process for a porous material that contains liquid, the air pressure is modulated throughout the volume of the drying chamber. Alternatively, the fluid pressure is modulated in a process stream. As an example, this method can be used for rapid drying of any open porous substances ranging from small pored materials such as aerogels and xerogels, to larger pored substances or articles such as industrial articles, agricultural articles (e.g., densely stacked vegetables, coffee beans, hops and other grains), paper-based products, thin films, pharmaceuticals, cloth, and clothing.
    Type: Grant
    Filed: April 16, 2002
    Date of Patent: May 4, 2004
    Assignee: Aspen Systems, Inc.
    Inventor: Kang P. Lee
  • Publication number: 20040040177
    Abstract: A first gas nozzle and a second gas nozzle are fixedly provided in the vicinity of the forward end of a nozzle arm. The nozzle arm is rotated along a locus R while a substrate rinsed with deionized water is rotated, for discharging nitrogen gas from the first and second gas nozzles. Visible moisture is loosely expelled from the upper surface of the substrate by spraying the nitrogen gas from the first gas nozzle, and moisture slightly remaining on a fine pattern or the like can also be completely removed by spraying the nitrogen gas from the second gas nozzle to the same region of the substrate as that sprayed with the nitrogen gas by the first gas nozzle. Consequently, the surface of the substrate can be stably and reliably dried. Thus, a substrate processing apparatus capable of stably and reliably drying the surface of the substrate is provided.
    Type: Application
    Filed: August 5, 2003
    Publication date: March 4, 2004
    Applicant: Dainippon Screen Mfg., Ltd.
    Inventor: Akira Izumi
  • Publication number: 20030226277
    Abstract: An apparatus and method for generating water vapor or humidity, useful in a variety of applications, including a wood drying kiln. The apparatus may contain a hydrophilic disk, a water supply structure that supplies water so that the water is deposited on the hydrophilic disk, and a motor for rotating the disk at a speed sufficiently high so that water which is deposited on the disk is caused to leave the disk in the form of a mist of particles or droplets which are sufficiently small to evaporate rapidly to generate the water vapor. The disk may be made hydrophilic by covering with a fabric.
    Type: Application
    Filed: June 10, 2002
    Publication date: December 11, 2003
    Inventor: Evan E. Koslow
  • Patent number: 6519870
    Abstract: A method for heating bulk materials, especially granular plastic material, in which the bulk material is fed to a vessel and exits the vessel based on the consumption. A heat-transfer gas flow is simultaneously fed to the vessel and conducted either cocurrently with or countercurrently to the flow of granular material. The gas inlet temperature or quantity of gas are thereby varied in such a way that the temperature of the granular material at the outlet corresponds to a target temperature value required for the granular material.
    Type: Grant
    Filed: April 24, 2002
    Date of Patent: February 18, 2003
    Assignee: Mann & Hummell ProTec GmbH
    Inventors: Achim Becker, Michael Zlotos
  • Patent number: 6289607
    Abstract: A method and flotation dryer unit effects drying of a web such as a coated paper web. The flotation dryer unit advantageously includes several nozzle boxes extending across the web for feeding drying air toward the web to be dried, a distribution chamber for drying air for leading the dry air into the nozzle boxes, and a suction chamber for gathering the drying air led toward the web from the web area and for directing it to the side of the web. The suction chamber is divided into an equalizing space and an air transport chamber by a perforated plate for equalizing the return air flow occurring from the web area.
    Type: Grant
    Filed: November 26, 1999
    Date of Patent: September 18, 2001
    Assignee: Metso Paper, Inc.
    Inventors: Rami Aaltonen, Roland Banecki, Pertti Heikkila, Bertel Karlstedt, Richard Solin
  • Publication number: 20010015021
    Abstract: While being transferred in substantially horizontal state along a predetermined path of transfer by a conveyer means, a substrate plate is dried by a jet of compressed air which is spurted out from a slit-like mouth of an air knife nozzle crosswise of the entire width of the substrate plate and at a predetermined angle of incidence with respect to a drying surface of the substrate plate to scrape off a liquid. The angle of incidence of jet air is made shallower as soon as the substrate on the conveyer means comes to a point of entry to an air blasting zone and is made deeper at latest when the substrate plate comes to a position immediately before a point of disengagement from the air blasting zone.
    Type: Application
    Filed: February 12, 2001
    Publication date: August 23, 2001
    Applicant: Hitachi Electronics Engineering Co., Ltd.
    Inventors: Kazuhiko Gommori, Kazuto Kinoshita, Isamu Akiba, Masao Sugiyama
  • Patent number: 6189238
    Abstract: A portable purge system for transporting materials, such as semiconductor wafers used in the manufacture of ICs, comprises a carrier having compartments for releasably receiving and enclosing the materials therein. The carrier is flooded with an inert gas such as nitrogen so as to adsorb the nitrogen on the surface of the materials, dilute contaminants, and purge the contaminants from the carrier. The carrier and the flooding means are mounted in a transport case. A humidifier is connected to the flooding means so that the materials will adsorb water and thereby further resist adsorption of hydrocarbon contaminants.
    Type: Grant
    Filed: November 30, 1998
    Date of Patent: February 20, 2001
    Assignee: Lucent Technologies Inc.
    Inventors: Mindaugas F. Dautartas, Ofer Sneh
  • Patent number: 6122839
    Abstract: A method of contacting an article placed in a chamber with a gas flowing through the chamber includes the step of displacing at least one interior surface in or of the chamber relative to the article so that the surface and the article are positioned adjacent one another to inhibit the flow of gas between them and to encourage the flow of gas into contact with the article.
    Type: Grant
    Filed: January 13, 1999
    Date of Patent: September 26, 2000
    Inventor: Gilbert Franciscus Evarist D'Hollander
  • Patent number: 5906862
    Abstract: A method and apparatus for coating and drying coated substrates without introducing significant surface imperfections while running at higher web speeds than known drying methods. The substrate is preferably coated within the drying enclosure or the coating bead may form a closure at the entrance of the drying enclosure. The substrate is moved through a first drying enclosure along a first axis. The first drying enclosure is substantially isolated from an external environment. A first low velocity, substantially laminar flow field of a drying gas is directed across the front surface of the substrate. The first flow field is generally parallel to the front surface and generally perpendicular to the first axis to minimize the formation of surface imperfections during the evaporation of the coating solvent. The substrate may then be moved to subsequent drying enclosures through transition enclosures that minimize surface imperfections due to high velocity interaction between the adjacent drying enclosures.
    Type: Grant
    Filed: April 2, 1997
    Date of Patent: May 25, 1999
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Robert A. Yapel, Omar D. Brown, Wayne P. Ray, Daniel V. Norton, Bernard A. Scheller, Manley C. Marcellus
  • Patent number: 5893218
    Abstract: An automatically controlled seed dryer of the present invention is adapted to efficiently and precisely dry seed by automatically controlling the temperatures directions and air flow rate; of air flow through the seed within the bin. The invention includes an upper plenum for supplying a source of hot airs a lower plenum for supplying a source of ambient air, and a mixing plenum for mixing various proportions of hot and ambient air from the upper and lower plenums. The mixing plenum has upper and lower supply doors formed between the mixing plenum and the bin for supplying the mixed air to the bin either above or below the seed. Upper and lower exhaust doors are formed in the bin above and below the seed such that by controlling the operation of the supply and exhaust doors, the direction and air flow rate of the mixed air through the seed can be precisely controlled by an electronic controller. A plurality of linear actuators control the operation of the doors.
    Type: Grant
    Filed: April 15, 1997
    Date of Patent: April 13, 1999
    Assignee: Pioneer Hi-Bred International, Inc.
    Inventors: James L. Hunter, Cyrille Precetti, Paul Chicoine
  • Patent number: 5599229
    Abstract: By enhancing the natural instabilities in the boundary layer and in the free shear layer of a wall jet, the boundary is minimized thereby increasing the transport of heat and mass. Enhancing the natural instabilities is accomplished by pulsing the flow of air that creates the wall jet. Such pulsing of the flow of air can be accomplished by sequentially occluding and opening a duct that confines and directs the flow of air, such as by rotating a disk on an axis transverse to the flow of air in the duct.
    Type: Grant
    Filed: May 8, 1995
    Date of Patent: February 4, 1997
    Assignee: Midwest Research Institute
    Inventors: Scott D. Claunch, Robert B. Farrington
  • Patent number: 5551167
    Abstract: A continuous-flow grain steeping and slow grain cooling process and apparatus. The continuous charging of hot, partially dried grain from a heated-air dryer into the top of a grain container in a layer of approximately uniform thickness is accomplished by use of grain spreading equipment. The downward flow of grain through the grain container is regulated by thermostatically controlled sweep and discharge augers located in the bottom of the bin. The grain flows at a rate that allows the grain to remain in a top steeping zone for a predetermined period of time, typically from four to twelve hours. After the initially charged grain is held at the steeping temperature for a predetermined steeping time, a continuous upward flow of ambient air is provided by a fan to cool the grain in a bottom cooling zone. The air flow is controlled by a thermostat to provide air flow at a rate that allows grain to remain in the cooling zone for a predetermined cooling time which is dependent on the airflow rate in cfm/bu.
    Type: Grant
    Filed: July 1, 1994
    Date of Patent: September 3, 1996
    Assignee: Iowa State University Research Foundation, Inc.
    Inventor: Larry van Fossen
  • Patent number: 5551168
    Abstract: A continuous-flow, slow grain cooling process including the charging of hot, partially dried grain from a heated-air grain dryer into the top of a grain container in an even layer. The downward flow of grain through the grain container is regulated at a rate that allows the grain to remain in a top steeping zone for from four to twelve hours. After the initially charged grain is held at the steeping temperature for a predetermined steeping time, a controlled upward flow of ambient air is provided to cool the grain in a bottom cooling zone. The air flow is provided at a rate that allows grain to remain in the cooling zone until it is cooled close to the ambient air temperature, but the upward flow is controlled such that it will not cool any grain until it has been properly steeped. Cooled dry grain from a layer near the bottom is then discharged from the bottom of the grain container.
    Type: Grant
    Filed: July 1, 1994
    Date of Patent: September 3, 1996
    Assignee: Iowa State University Research Foundation, Inc.
    Inventor: Larry Van Fossen
  • Patent number: 5454171
    Abstract: A clothes dryer includes a drum for accommodating clothes to be dried, a heater and a fan for supplying hot air into the drum in a drying operation, and a temperature sensor sensing the temperature in the drum. A drying operation includes a drying step in which hot air is supplied into the drum and a cooling step in which the heater is deenergized. An intermittent operation is initiated upon completion of the drying operation. The intermittent operation is completed when the temperature sensed by the temperature sensor has reached a predetermined value set for preventing occurrence of creases in the clothes.
    Type: Grant
    Filed: June 23, 1994
    Date of Patent: October 3, 1995
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hiroshi Ikeda, Yoshiyuki Makino