Class 34/342 - Using multiple treating liquids

Subclass of Class 34 - Drying and gas or vapor contact with solids
Definition: Process wherein more than one treating liquid is applied
No. of patents: 29
Last issue date: 05/15/2007

Number	Title	Issue Date
7216509	Sol-gel process for the production of high dimensions dry gels and derived glasses It is described a sol-gel process that allows to obtain dry gels, and possibly the corresponding dense glassy bodies, having higher dimensions compared to similar known processes. ...	05/15/2007
6729040	Apparatus and method for drying a substrate using hydrophobic and polar organic compounds A dryer for drying a substrate includes: a bath containing a fluid; a chamber; and a delivery system supplying a polar organic compound, such as isopropyl alcohol, and a hydrophobic organic compound, such as hydrofluoroether, to the interface between the substrate a...	05/04/2004
6668239	Track monitoring equipment For monitoring railway tracks on a frequent basis, instrumentation packages are installed in service vehicles (18), for example in passenger carriages. The instrumentation package (16) comprises sensors (35, 36, 42) mounted on a bogie (24) of the vehicle ...	12/23/2003
6427359	Systems and methods for processing workpieces Workpieces requiring low levels of contamination, such as semiconductor wafers, are loaded into a workpiece support or holder within a process chamber. The process chamber has a drain opening, slot or edge. The chamber is closed via a door. A process or r...	08/06/2002
6378229	Method for the sub-critical drying of lyogels to produce aerogels The present invention refers to a method for the sub-critical drying of lyogels to produce aerogels. The method for the sub-critical drying of lyogels to produce aerogels provides for the lyogel particles to be disposed as a fixed bed and for a drying gas...	04/30/2002
6270584	Apparatus for drying and cleaning objects using controlled aerosols and gases Method and apparatus for cleaning and/or drying objects that may have been wetted or contaminated in a manufacturing process. The objects are submerged in a rinse liquid in an enclosed chamber, and aerosol particles from a selected liquid are introduced i...	08/07/2001
6131305	Process for sub-critically drying aerogels The present invention relates to a process for the sub-critical drying of a lyogel to form an aerogel, in which the lyogel is treated with a heat-conveying fluid at a temperature above the boiling point of the pore liquid of the lyogel under system pressu...	10/17/2000
6132811	Procedure for the drying of silicon The invention relates to a procedure applicable for drying substrate surfaces of a large number of materials, such as semiconductors, metals, plastics and, in particular, silicon. The silicon (1) is dipped into a liquid bath (2) and the silicon (1) is sep...	10/17/2000
6119366	Chemical drying and cleaning method Method and apparatus for drying and/or cleaning a workpiece, such as an electronic part, semiconductor wafer, printed circuit board or the like. As the workpiece is withdrawn from a processing liquid, a selected drying liquid, such as hydrofluoroether (HF...	09/19/2000
6041796	Apparatus for drying objects with fluids An apparatus for drying objects with fluids includes the introduction of an object (46) to be dried into a container (12). The container (12) is filled with a first fluid (48) from the bottom (16) of container (12) to a predetermined level. Subsequently, ...	03/28/2000
5989359	Method for drying objects with fluids A method for drying objects with fluids includes the introduction of an object (46) to be dried into a container (12). The container (12) is filled with a first fluid (48) from the bottom (16) of container (12) to a predetermined level. Subsequently, a vo...	11/23/1999
5974689	Chemical drying and cleaning system Method and apparatus for drying and/or cleaning a workpiece, such as an electronic part, semiconductor wafer, printed circuit board or the like. As the workpiece is withdrawn from a processing liquid, a selected drying liquid, such as hydrofluoroether (HF...	11/02/1999
5968285	Methods for drying and cleaning of objects using aerosols and inert gases Methods for cleaning and/or drying objects that may have been wetted or contaminated in a manufacturing process. The objects are submerged in a rinse liquid in an enclosed chamber, and aerosol particles from a selected liquid are introduced into the chamb...	10/19/1999
5964958	Methods for drying and cleaning objects using aerosols Methods for drying and cleaning objects that may have been wetted or contaminated in a manufacturing process. The objects are submerged in a rinse liquid in an enclosed chamber, and aerosol particles from a selected liquid are introduced into the chamber ...	10/12/1999
5749163	Apparatus and method for imparting wrinkle-resistant properties to garments and other articles An apparatus for the manufacture of wrinkle-resistant garments is disclosed which includes a housing enclosing a drum which is rotatable on a generally horizontal axis, whereby when the drum is rotated with garments disposed therein a tunnel defined by th...	05/12/1998
5680713	Process for the subcritical drying of aerogels A process for the subcritical drying of a lyogel to give an aerogel comprises treating the lyogel with a heat transfer liquid which has a temperature above the boiling point of the pore liquid of the lyogel under the pressure of the system and subsequentl...	10/28/1997
4511495	Tumble dryer products for depositing perfume Perfume may be deposited on fabrics by drying wet fabrics in a rotary hot air dryer together with a conditioning composition containing (i) a fabric conditioning agent such as a fabric softener and (ii) particles containing an intimate mixture of a perfum...	04/16/1985
4430807	Process for drying water-wet membranes An improved process for drying water-wet, cellulose ester membranes is described. It has been found that by contacting one side of the membrane with a liquid mixture of a water-miscible, volatile C1 to C6 hydrocarbon and a water-immi...	02/14/1984
4397100	Organic solid substrate dewatering process based on plug flow contact by an extractive fluid A method of removing water from organic solid substrates, such as peat, wherein a primary solvent is used to extract water from the substrate and the primary solvent and the substrate are kept in plug flow during contact, and then a secondary solvent may ...	08/09/1983
4339882	Organic solid substrate dewatering process utilizing primary and secondary solvents A method of removing water from organic solid substrates, such as peat, wherein a primary solvent is used to extract water from the substrate and a secondary solvent is used to separate the primary solvent from the water....	07/20/1982
4259373	Fabric treating articles and process Fabric conditioning articles comprising a double layered porous receptacle releasably containing a fabric softener/antistat composition. Methods of using the conditioning articles are also provided....	03/31/1981
4254559	Method for drying pipelines The interior surface of a pipeline is dried by sequentially passing through the pipeline (a) an aqueous cross-linked gelled pig, (b) a fluid mobility buffer comprising a non-crosslinked gelled ankanol of from one to three carbon atoms, (c) a dessicating a...	03/10/1981
4238067	Drying of cavities Water filled cavities are dried by replacing the water with a first liquid which is miscible with water and this is then replaced by a second liquid which is miscible with the first and which has a high vapor pressure. The second liquid is then replaced b...	12/09/1980
4167594	Combined laundry finishing treatment agent package and method A laundry finishing treatment article for use in a mechanical laundry drier to treat fabrics with a substance of the laundry finishing type and a laundry odorant, the article comprising a hollow bag of two-layer composite sheeting having a pillowlike form...	09/11/1979
4161450	Drying compositions A composition for drying surfaces comprising 90 to 99.95% by weight of an organic solvent at least 50% of which is 1,1,2-trichloro-1,2,2-trifluoroethane, 0.04 to 8% by weight of a hydrophobic substantially water insoluble surface active agent and 0.01 to ...	07/17/1979
4156067	Polyurethane polymers characterized by lactone groups and hydroxyl groups in the polymer backbone Polyurethane polymers characterized by a molecular weight above 6,000 and having lactone groups and hydroxyl groups in the polymer backbone are prepared by reacting a mixture of polyols, a polyfunctional lactone and a polyfunctional isocyanate proportione...	05/22/1979
4090307	Method for removing water from workpieces and apparatus therefor A method for removing water from the surface of workpieces, particularly, glass workpieces, by dipping the workpieces into a boiling dewatering bath composed of an organic solvent which is immiscible with water and which contains surface active agents, an...	05/23/1978
4080743	Membrane drying process Process for drying a water-wet membrane by contacting with a solution of water miscible and water immiscible solvents and then removing the solution....	03/28/1978
3982325	Method of solvent drying Solvent-drying, particularly of water-wetted materials, is accomplished through the use of specific azeotropic mixed-solvent systems. The azeotropic systems used in the method of the invention are those which form two or more separate layers, in which the...	09/28/1976

PatentStorm

Quotables

PatentStorm News

Class 34/342 - Using multiple treating liquids