Class 34/474 - Gas or vapor humidity regulation

Subclass of Class 34 - Drying and gas or vapor contact with solids
Definition: Process wherein the percentage of moisture within the treating
No. of patents: 36
Last issue date: 01/31/2012

Number	Title	Issue Date
8104191	Laundry dryer providing moisture application during tumbling and reduced airflow A laundry dryer includes a rotatable drum, an air delivery system selectively operable to provide air into the drum at a first flow rate and a second flow rate that is less than the first flow rate, and a moisture delivery system operable to provide moisture (e.g., ...	01/31/2012
7251906	Drum type washing and drying machine A drum type washing and drying machine includes a rotary drum for accommodating laundry therein; a front frame for forming a front surface of a main body of the washing and drying machine, wherein the front frame is provided with a laundry loading/unloading opening ...	08/07/2007
7247090	System and method for inhibiting moisture and mold in an outer wall of a structure A structure comprises at least one outer wall having an internal wall section and an outer wall section with an air flow passage therebetween. A circulation system circulates air through the flow passage to inhibit moisture accumulation and mold growth. A sensing sy...	07/24/2007
7182268	Method of controlling the absolute humidity of air stream in kilning step and kilning apparatus The present invention relates to a method of controlling the absolute humidity of blown air in a roasting-and-drying process and a roasting-and-drying apparatus. The method makes humidity control for air blown through malt to be proper and makes the variation in the...	02/27/2007
7007402	System and method for drying particulate materials using heated gas A system and method for drying particulate material in a dual flow hopper employs multiple flow paths by which heated gas is inserted into the hopper at different levels. Gas is extracted from the hopper and is divided for flow along two flow paths, one of the flow ...	03/07/2006
6921026	Preservation of intermediate moisture foods by controlling humidity and inhibition of mold growth A humidity control device for use in maintaining a desired humidity in packages of food, the device including a protective case, a water vapor permeable pouch and a thickened saturated solution, the solution having a suitable humidity control point for use within a ...	07/26/2005
6508014	Method of drying substrates A method of removing water from the surface of a silicon wafer or other substrate subjected to wet processing which includes a step of water rinsing. In this method a silicon wafer whose surface includes liquid water is disposed in an atmosphere saturated...	01/21/2003
6484417	Dryer apparatus and dryer control system An improved dryer (10) and drying methods are provided which increase overall dryer efficiency by maintaining substantially constant output air stream adiabatic saturation ratio and temperature values during the course of drying, notwithstanding the occur...	11/26/2002
6453576	Control of solids deposition from used desiccant solution In a gas dryer for use in a gas transmission line in which a bed of desiccant tablets is suspended in the flow of gas, making an aqueous solution of the desiccant salts from the moisture taken from the gas, the solution is inhibited from generating solids...	09/24/2002
6446357	Fuzzy logic control for an electric clothes dryer A method and apparatus for controlling the drying cycle of a dryer by utilizing fuzzy logic control. Control is accomplished by first monitoring the moisture level of a clothes load in the dryer. From the monitored moisture information, variables such as ...	09/10/2002
6391091	Hygroscopic monolith A monolithic hygroscopic material shaped to facilitate a circulation flow of ambient air. The hygroscopic material may be used to remove various compounds from an ambient gas and may be reactivated to restore its drying capacity. The tendency of the mater...	05/21/2002
6383553	Method for monitoring and/or controlling a granulation, coating and drying process A method and a device function for monitoring and/or controlling and regulating a granulation, agglomeration, instantization, coating and drying process in a fluidized layer or a moving bulk by determining the product moisture. At least during one process...	05/07/2002
6374513	Process for the heat treatment of lignocellulosic material A process for the heat treatment of lignocellulosic material where the material is perheated and dried at a temperature close to the vaporization temperature of water, heated in a reducing atmosphere and cooled by the injection of water vapor....	04/23/2002
6328099	Moving bed dryer Free-flowing solid particles are dried in a moving bed dryer by passing the particles adjacent to a heat exchanger plate containing a heated fluid while passing a dehumidified gas into the solid particles from a gas flow manifold in the heat exchanger pla...	12/11/2001
6289606	Apparatus and method for moisture control of particulate material An apparatus and method for control of moisture content of material such as thermoplastic pellets (80) in a hopper (30) is controlled by supplying dehumidified air from a dessicant bed (90) to the hopper (30) and returning air from the hopper (30) to the ...	09/18/2001
6280504	Hygroscopic monolith having a channel therethrough for modifying a gas therein by adsorption or desorption, and processes therefor A hygroscopic material having at least one passageway or channel therethrough. In a dehumidifier embodiment, the material is shaped to provide a surface area to facilitate gas flow, and drying of an ambient gas by creating a chimney effect which facilitat...	08/28/2001
6226890	Desiccation of moisture-sensitive electronic devices A method of desiccating an environment surrounding a moisture-sensitive electronic device sealed within an enclosure, includes selecting a desiccant comprised of solid particles having a particle size range 0.1 to 200 micrometers, the desiccant selected t...	05/08/2001
6167638	Drying of grain and other particulate materials Very dry air is made for drying grain and other particulates. The air is dried by first cooling under pressure to remove moisture, then contacted with a drying device such as a vessel containing desiccant, then heated and released into a bed of particulat...	01/02/2001
6158147	Method and apparatus for drying of grain and other particulates using a membrane Very dry air is made for drying grain and other particulates. The air is dried by first cooling under pressure to remove moisture, then contacted with a drying device such as a vessel containing desiccant, then heated and released into a bed of particulat...	12/12/2000
6128832	Method and system for providing conditioned air A system and method for providing conditioned air to a yarn traveling on a textile machine includes an air conditioning unit local to said textile machine and configured to receive input air and to condition the air to a first desired relative humidity. A...	10/10/2000
5970625	Automated air filtration and drying system for waterborne paint and industrial coatings An automated air filtration and drying system including an energy and environmental management system for controlling, monitoring and supervising the operation and performance of the air filtration and drying system, a capture apparatus for capturing and ...	10/26/1999
5915816	Method and apparatus for preparing an adsorbent A method of preparing an adsorbent which contains a medium, which medium may comprise water. The medium is removed from the adsorbent by a hot regeneration gas, and the adsorbent is then cooled, wherein heat recovered during said cooling is used to heat t...	06/29/1999
5673496	Dry charge machine and method The dry charge machine and method disclosed carefully monitor the temperature above and below the plates as well as the water temperature exiting the machine and introduce cooling water at a flow rate and temperature so as to maximize thermal efficiency i...	10/07/1997
5659974	Method for regeneration of an adsorbent material containing moisture and apparatus therefor A method and apparatus for preparing and regenerating an adsorbent material which material contains a medium (particularly moisture). The medium is removed from the adsorbent material by a hot regeneration gas, following which the adsorbent material is co...	08/26/1997
5588225	Method of drying an injection molding tool A method for drying the surface of a tool, particularly an injection molding tool, by feeding dry air from a drying device into a lower area of a chamber defined by a housing enclosing the tool. Moist air is removed from an upper area of the chamber and r...	12/31/1996
5526581	Process for adjusting the moisture content of organic materials A process for reordering tobacco or other suitable hygroscopic organic material, which results in no significant decrease in the equilibrium CV of the tobacco or other hygroscopic organic material, or significant degradation of the tobacco or other hygros...	06/18/1996
5456022	Batch-type sludge drier A drier having a boxlike housing (12) for receiving a hopper (13) therein which contains a batch of wet sludge. The hopper (13) cooperates with the housing, when closed therein, to define a closed air recirculation system which supplies dry pressurized wa...	10/10/1995
5433019	Process and an apparatus for producing teas A new kind of teas named "dry fresh tea" is prepared by drying tea leaves in circulating air at low temperature and low humidity. Quality of teas is improved by preserving volatile flavors....	07/18/1995
4808365	Method for reducing edge curl on green sheets A process for reducing edge curl in green sheets in which the sheets are first placed in a chamber at about 95% relative humidity for a period of about 2 weeks at room temperature. In this part of the process, the sheets absorb water which causes the inte...	02/28/1989
4772439	Process of quickly manufacturing critically shaped concrete products of high strength A fast-cure process of manufacturing concrete products of critical shapes and strength requirements such as block, tile and pipe provides substantially maximum strength in a few hours as compared with the many months it would take in an ambient atmosphere...	09/20/1988
4644665	Process for supervising and/or controlling of physical treatment processes and bioreactions in ventilation systems as well as device for executing the process In a process, the humidity of at least the exhaust air is measured and used for the regulation of the product humidity of water activity during a treatment process. Therefore, it is possible to directly register the humidity taken on by the inlet air or c...	02/24/1987
4536970	Procedure for boosting the ventilation in the hood of a paper machine A procedure for boosting the ventilation in drying sections of paper machines provided with a closed hood (1). In the procedure, air is blown on such surfaces which are susceptible to condensate precipitation. Air jets (F1,F2) are bl...	08/27/1985
4270280	Rice drying machine Rice drying apparatus, a dryer directing heated air through the rice being dried, a control maintaining predetermined differential between the wet bulb and dry bulb temperature of the air used in drying, a modulating apparatus controlling the heat of the ...	06/02/1981
4241515	Method and apparatus for conditioning tobacco The moisture content of tobacco, particularly greenleaf tobacco, is reduced to an accurately determined value by conveying a continuous tobacco stream through three successive sections of a transporting system wherein the tobacco is contacted by air curre...	12/30/1980
4099337	Method of curing concrete articles by water vaporization Concrete articles to be cured are charged into a kiln. A hot water bath is maintained on the kiln floor and the water is circulated through a heat exchanger and sprayed beneath the level of the concrete articles into the water bath to maintain the water b...	07/11/1978
3972128	Process for drying hygroscopic materials A process for drying hygroscopic materials in which the atmospheric condition for removing the humidity from the hygroscopic materials by a suitable drying means is automatically adjusted to maintain a predetermined temperature difference between the dry ...	08/03/1976

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Class 34/474 - Gas or vapor humidity regulation