Top 100 US Patents in Separation of Substances
section b - performing operations; transporting > physical or chemical processes or apparatus in general > separation
Sorted by IPQ® Score, an objective measure of patent quality. View scores and methodology at PatentRatings.com. You can also view all by publication date instead.
US4908193 (A), filed
Jan 05, 1988
, published
Mar 13, 1990
- PERRY ROBERT A
PCT No. PCT/US87/01029 Sec. 371 Date Jan. 5, 1988 Sec. 102(e) Date Jan. 5, 1988 PCT Filed May 5, 1987 PCT Pub. No. WO87/06923 PCT Pub. Date Nov. 19, 1987.An arrangement for reducing the NO content of a gas stream comprises contacting the gas stream with NHCO...
US6026540 (A), filed
Jul 24, 1998
, published
Feb 22, 2000
- ROYAL APPLIANCE MFG
An upright vacuum cleaner (A) includes an upright housing section (B) and a nozzle section (C). A cyclonic airflow dirt and dust separating chamber (54) is defined in said upright housing section. A suction source (E) pulls air and entrained dirt, dust, and...
US7264730 (B2), filed
Jun 13, 2003
, published
Sep 04, 2007
- BAXTER INT
A number of improvements relating to methods and apparatuses for kidney dialysis are disclosed. These include methods such as supplying a dialysis machine including a touch screen interface to a machine user and supplying to the machine user accessory devices...
US6664101 (B2), filed
Dec 15, 1999
, published
Dec 16, 2003
CO2 is separated from waste gases by known technical methods and stored in underground cavities. By additions to the CO2, according to the invention, of H2 or NH3, methanogenic bacteria, bacteria substrate, catalysators and/or inhibitors the CO2 is reduced...
US5106505 (A), filed
Nov 30, 1989
, published
Apr 21, 1992
- SEPARATION DYNAMICS INC
US6835311 (B2), filed
Nov 01, 2002
, published
Dec 28, 2004
- KOSLOW TECHN CORP
The invention is directed to a microbiological interception enhanced filter medium, preferably having an adsorbent prefilter located upstream from the filter medium. Preferably, the prefilter is adapted to remove natural organic matter in an influent prior to...
US4288235 (A), filed
Jul 06, 1979
, published
Sep 08, 1981
- STONE WEBSTER ENG CORP
This invention relates to an apparatus and method for rapidly separating particulate solids from a mixed phase solids-gas stream which may be at velocities up to 150 ft./sec. and at high temperature. Specifically, the device is designed for incorporation at...
US5038675 (A), filed
Dec 22, 1989
, published
Aug 13, 1991
- BENTZ SOHN MELITTA
A coffee or tea maker has a fresh water container with an outlet opening into a flowthrough heater. There is a water filter for filtering the water used for brewing the coffee or tea. A recess is formed in the fresh water container that is configured to...
US7351340 (B2), filed
Jun 13, 2003
, published
Apr 01, 2008
- BAXTER INT
A number of improvements relating to methods and apparatuses for kidney dialysis are disclosed. These include a method providing an apparatus for dialyzing to a consumer, with the apparatus including a controller for controlling a dialysate parameter, a...
US7053185 (B1), filed
Aug 15, 2000
, published
May 30, 2006
- HAMLET PHARMA AB
A method for producing an oligomeric form of alpha-lactalbumin which is in the molten globule-like state is described. The method suitably comprises exposing a source of alpha-lactalbumin in which the alpha-lactalbumin is preferably in the molten globule-like...
US6759018 (B1), filed
Dec 15, 1998
, published
Jul 06, 2004
- ADVANCED TECH MATERIALS
A system for abating undesired component(s) from a gas stream containing same, such as halocompounds, acid gases, silanes, ammonia, etc., by scrubbing of the effluent gas stream with an aqueous scrubbing medium. Halocompounds, such as fluorine, fluorides,...
US4816155 (A), filed
Jul 14, 1986
, published
Mar 28, 1989
- KLR MACHINES INC
An improved juice drainage system is incorporated into the mash line of juice processing equipment. Fruit or other mash is pumped through a relatively large-diameter, generally horizontal mash pipe. A plurality of relatively smaller-diameter tubes or juice...
US4558120 (A), filed
Dec 27, 1983
, published
Dec 10, 1985
- DOW CHEMICAL CO
Dense star polymers having terminal group densities greater than conventional star polymers exhibit greater and more uniform reactivity than their corresponding conventional star polymers. For example, a third generation, amine-terminated polyamidoamine dense...
US5591344 (A), filed
Feb 13, 1995
, published
Jan 07, 1997
- AKSYS LTD
A dialysis machine is disclosed that incorporates a water treatment module, a dialysate preparation module having a dialysate circuit, and an extracorporeal circuit including a dialyzer and arterial and venous blood lines that connect to the patient. The...
US5639373 (A), filed
Aug 11, 1995
, published
Jun 17, 1997
- ZENON ENVIRONMENTAL INC
A vertical skein of "fibers", opposed terminal portions of which are held in headers unconfined in a modular shell, is aerated with a gas-distribution means which produces a mass of bubbles serving the function of a scrub-brash for the outer surfaces of the...
US4256855 (A), filed
Nov 16, 1978
, published
Mar 17, 1981
- DOW CHEMICAL CO
Compounds represented by the formula IMAGE and addition polymers thereof where m is an integer from 2 to about 10, x-is chlorine, hydroxy, carboxy or -AC-R)=CH2 -R is hydrogen or methyl, -R' is an ethylene or propylene group and -AC-R)=CH2 is one of IMAGE ...
US5165395 (A), filed
Feb 14, 1992
, published
Nov 24, 1992
- RICCI MARK R
A germicidal mask system to be worn by a user kills germs, viruses, or other pathogens which are located in the air to be breathed by the user. Before entering the mask, the air is exposed to ultra-violet radiation killing the undesirable germs, viruses, and...
US5059288 (A), filed
Nov 21, 1989
, published
Oct 22, 1991
- HARBORCHEM
High purity isopropyl acetate and ethanol are recovered from a process stream containing isopropyl acetate, ethanol and water by a multiple step process including extracting substantially all of the ethanol from the stream using water as a solvent, stripping...
US5922908 (A), filed
Mar 27, 1997
, published
Jul 13, 1999
- TWENTY FIRST CENTURY RES CORP
This invention relates to methods of preparing dibasic acids, such as adipic acid for example, by oxidizing a hydrocarbon with a gas containing an oxidant, preferably oxygen. A respective hydrocarbon is reacted with a gaseous oxidant to form dibasic acid in a...
US6585806 (B2), filed
May 16, 2000
, published
Jul 01, 2003
- BENDIX COMMERCIAL VEHICLE SYS
An air dryer and reservoir assembly for providing compressed air from an air compressor (20) on a heavy motor vehicle which includes an air dryer (14) connected to receive compressed air from the air compressor (20) and a secondary reservoir (12), including an...
US7303680 (B2), filed
Jun 13, 2003
, published
Dec 04, 2007
- BAXTER INT
A number of improvements relating to methods and apparatuses for kidney dialysis are disclosed. These include checking of dialysate bypass status using flow measurement; using a flow sensor to confirm the absence of ultrafiltration during bypass; automatic...
US4502921 (A), filed
Aug 17, 1982
, published
Mar 05, 1985
- FOXBORO CO
Control of multiple distillation columns for producing anhydrous alcohol suitable for blending with gasoline to produce gasohol. The distillation process involves production of a first-stage distillate containing a predetermined amount of water, followed by...
US4920960 (A), filed
Oct 02, 1987
, published
May 01, 1990
- TECNOL INC
A face mask (10) is provided for covering the mouth and nose of a wearer (14). The mask (10) prevents the passage of liquid from external to the mask to the face of the wearer (14). The mask (10) has four layers including a special low density polyethylene...
US4507466 (A), filed
Jan 07, 1983
, published
Mar 26, 1985
- DOW CHEMICAL CO
Dense star polymers having terminal group densities greater than conventional star polymers exhibit greater and more uniform reactivity than their corresponding conventional star polymers. For example, a third generation, amine-terminated polyamidoamine dense...
US5290607 (A), filed
Mar 02, 1992
, published
Mar 01, 1994
- CHITOURAS COSTA G
A method and system for significantly increasing the density of particulates on a substrate includes disposing a particulate material, such as fibers or abrasive material, onto a surface of the substrate, whereby the particles adhere to the substrate. The...
US6248683 (B1), filed
Apr 07, 1999
, published
Jun 19, 2001
- SILICYCLE INC
The present invention is concerned a process for the regeneration of the spent silica gel used in chromatography and for any other kind of silica. The process comprises 5 main steps, namely:washing with an extractant of organic compounds and removing volatile...
US6109092 (A), filed
Jan 05, 2000
, published
Aug 29, 2000
- EASTMAN KODAK CO
A method and apparatus for evaluating the end cap round transducer horn assemblies used in debubbling operations wherein the ECR THA can be evaluated off-line at both high and low power and on-line by making electrical measurements on the ECR THA. The...
US4375414 (A), filed
Jan 21, 1977
, published
Mar 01, 1983
- STRAHILEVITZ MEIR
Immunoassays of psychoactive drugs including psychotomimetic drugs, narcotic drugs, and tetrahydrocannabinols and treatment methods based on the antigenic properties of protein conjugates of these drugs. These methods are based upon treating the psychoactive...
US6253544 (B1), filed
Oct 07, 1999
, published
Jul 03, 2001
- LOCKHEED CORP
A method and apparatus are provided for improving the conversion efficiency of a catalytic converter for treating exhaust gases produced from the combustion of a fuel to at least reduce pollutants from incomplete combustion, wherein the reduction in pollutants...
US4422942 (A), filed
Sep 09, 1981
, published
Dec 27, 1983
- ISCO INC
To stabilize flow rate in a single-stroke, syringe-type high pressure pump to a constant value after turn-on, a control system increases the pump speed until equilibrium conditions are reached and then pumps at the preset rate. In one embodiment, the control...
US6001221 (A), filed
Jan 12, 1998
, published
Dec 14, 1999
- BIG BEANS HOLDING LTD
Apparatus for condensing moisture from an air stream. The condenser includes concentric cylinders having a common wall. The outer cylinder contains a cooling material, such as water, and upon contact therewith, the air stream is cooled and moisture contained...
US4246081 (A), filed
Mar 02, 1979
, published
Jan 20, 1981
- WINNICK JACK
A method of removing sulfur oxides of H2S from high temperature gas mixtures (150 DEG -1000 DEG C.) is the subject of the present invention. An electrochemical cell is employed. The cell is provided with inert electrodes and an electrolyte which will provide...
US5160593 (A), filed
Jul 17, 1991
, published
Nov 03, 1992
- CANDOR JAMES T
An apparatus and method for removing liquid from liquid bearing material are provided, the apparatus comprising a pair of electrode units having portions thereof disposed adjacent each other and defining an inlet to the adjacent portions and an outlet from the...
US6841016 (B1), filed
Mar 02, 2000
, published
Jan 11, 2005
- TNO
The invention is directed to a process for the production of crystalline energetic materials having improved stability and/or decreased sensitivity by crystallization of the energetic materials with ultrasonic vibration having a frequency of between 10 and 100...
US7449424 (B2), filed
Mar 08, 2005
, published
Nov 11, 2008
- GAS TECHNOLOGY INST
A method for producing a catalytically-active material having at least one base component and at least one catalytically-active component in which the at least one base component is heated to a softening or melting temperature to form a softened or molten base...
US5399244 (A), filed
Dec 06, 1993
, published
Mar 21, 1995
- GLITSCH
Benzene and other aromatics are separated from a stream of mixed hydrocarbons containing both aromatics and non-aromatics by extractive distillation with a solvent system containing dimethyl sulfoxide and optionally a co-solvent, preferably water, followed by...
US4782625 (A), filed
Apr 03, 1987
, published
Nov 08, 1988
- CANONIE ENVIRONMENTAL SERVICES
A method and apparatus for on-site remedial soil restoration activity of a work site contaminated with volatile organic compounds. Soil is removed from the ground and hauled to an initial feed hopper whereat it is conveyed to an inlet end of a hollow rotating...
US4568737 (A), filed
Aug 17, 1984
, published
Feb 04, 1986
- DOW CHEMICAL CO
Dense star polymers having terminal group densities greater than conventional star polymers exhibit greater and more uniform reactivity than their corresponding conventional star polymers. For example, a third generation, amine-terminated polyamidoamine dense...
US4282287 (A), filed
Jan 24, 1980
, published
Aug 04, 1981
- GIESE ROGER W
A multiple-layer process for applying, in alternate, successive layers, the protein, avidin, and a biotin-containing extender material to a solid surface to modify the properties of the surface and to the multiple-layer product so prepared.
US5795474 (A), filed
Mar 06, 1995
, published
Aug 18, 1998
Disclosed is a method and apparatus for the continuous remediation of a site contaminated with a hazardous substance. The remediation apparatus includes a material selectively permeable to the hazardous substance located at the site. Once isolated, the...
US5798497 (A), filed
Jun 19, 1995
, published
Aug 25, 1998
- BATTELLE MEMORIAL INSTITUTE
The present invention provides a relatively compact self-powered, tunable waste conversion system and apparatus which has the advantage of highly robust operation which provides complete or substantially complete conversion of a wide range of waste streams...
US5660680 (A), filed
Mar 07, 1994
, published
Aug 26, 1997
- UNIV CALIFORNIA
This invention relates to the area of microelectromechanical systems in which electronic circuits and mechanical devices are integrated on the same silicon chip. The method taught herein allows the fabrication of thin film structures in excess of 150 microns...
US5632791 (A), filed
Dec 06, 1994
, published
May 27, 1997
- BHA GROUP INC
A filter cartridge according to the present invention is provided having a unitary structure with a pleat pack formed securely about an interior screen. Opposite ends of the pleat pack and interior screen are integrally formed within a bottom end cap and an...
US6964735 (B2), filed
Dec 10, 2001
, published
Nov 15, 2005
- ACLARA BIOSCIENCES INC
Devices and methods are disclosed for moving charged molecules through a medium by the application of a plurality of electrical fields of sufficient strength and applied for sufficient amounts of time so as to move the charged molecules through the medium. The...
US6773589 (B2), filed
Apr 01, 2002
, published
Aug 10, 2004
A filtration apparatus includes a tank having an upper chamber and a lower baffle, layers of stone and carbon between the upper chamber and the lower baffle, a water inlet to the upper chamber, and a water outlet below the lower baffle. The upper chamber is...
US5244482 (A), filed
Mar 26, 1992
, published
Sep 14, 1993
- UNIV TENNESSEE RES CORP
A method for post-treating a precursor nonwoven web including consolidating the web laterally and thereby reducing the maximum pore size measure of the web. The resultant nonwoven web is also disclosed as is utilization of the product web as a filter.
US4476246 (A), filed
Jan 26, 1983
, published
Oct 09, 1984
- GRACE W R CO
Catalysts are made from supports which are doubly promoted with ceria and an alkali metal oxide by adding these promoters and the catalytic noble metal components in a specified order. The ceria is first applied to the support. It can be applied in a salt form...
US7204370 (B2), filed
Jun 19, 2006
, published
Apr 17, 2007
- PARKER INTANGIBLES LLC
A filter assembly includes housing enclosing a replaceable filter element. A support core is provided in the housing, and includes an extension and locking assembly. The element includes a ring of filtration media with a pair of end caps. The first end cap...
US4473474 (A), filed
Oct 23, 1981
, published
Sep 25, 1984
- AMF INC
A cationic charge modified microporous membrane, process for producing said membrane and use thereof are provided. The membrane comprises a hydrophilic organic polymeric microporous membrane and a charge modifying amount of a primary cationic charge modifying...
US6818254 (B1), filed
Jul 16, 1996
, published
Nov 16, 2004
- ENGELHARD CORP
A method and apparatus for treating the atmosphere comprising moving a vehicle through the atmosphere, the vehicle having at least one atmosphere contacting surface and a pollutant treating composition located on said surface. A specific embodiment comprises...
US5988397 (A), filed
Jul 17, 1997
, published
Nov 23, 1999
- TUBOSCOPE I P INC
A screen for a vibratory shaker having a frame with multiple openings. Screen modules or plugs are disposed in each opening. Further disclosed is a mounting apparatus for securing the screen plugs in the openings and a support strip for supporting part of a...
US5021136 (A), filed
Jan 16, 1990
, published
Jun 04, 1991
- CANDOR JAMES T
An apparatus and method for removing liquid from liquid bearing material are provided, the apparatus comprising a pair of movable electrodes having portions thereof disposed adjacent each other and defining an inlet to the adjacent portions and an outlet from...
US6003196 (A), filed
Jan 09, 1998
, published
Dec 21, 1999
- ROYAL APPLIANCE MFG
An upright vacuum cleaner (A) includes an upright housing section (B) and a nozzle section (C). A cyclonic airflow dirt and dust separating chamber (54) is defined in said upright housing section. A suction source (E) pulls air and entrained dirt, dust, and...
US6983851 (B2), filed
Nov 16, 2004
, published
Jan 10, 2006
- PARKER INTANGIBLES LLC
A filter assembly includes housing enclosing a replaceable filter element. A support core is provided in the housing, and includes an extension and locking assembly. The element includes a ring of filtration media with a pair of end caps. The first end cap...
US7216767 (B2), filed
Mar 03, 2005
, published
May 15, 2007
- VARCO INT
A screen mounting basket for a vibratory separator for separating components of material introduced into the basket, the vibratory separator including a collection receptacle beneath the basket, the basket including two opposed spaced-apart side walls having...
US5102643 (A), filed
Jan 25, 1990
, published
Apr 07, 1992
- MOBIL OIL CORP
This invention relates to a new synthetic composition of ultra-large pore crystalline material, a method for its preparation and use thereof as sorbent and in catalytic conversion of organic compounds. The new crystalline material exhibits unusually large...
US5114553 (A), filed
Aug 29, 1990
, published
May 19, 1992
- CANDOR JAMES T
An apparatus and method for removing liquid from liquid bearing material are provided, the apparatus comprising a pair of electrodes having portions thereof disposed adjacent each other and defining an inlet to the adjacent portions and an outlet from the...
USRE40070 (E1), filed
May 27, 2005
, published
Feb 19, 2008
- SMITHKLINE BEECHAM CORP
This invention relates to the application of hydrophobic interaction chromatography combination chromatography to the purification of antibody molecule proteins.?insert-start id="INS-S-00001" date="20080219" ?The questions raised in reexamination request,...
US6986426 (B2), filed
Jan 13, 2005
, published
Jan 17, 2006
- PARKER INTANGIBLES INC
A filter assembly includes housing enclosing a replaceable filter element. A support core is provided in the housing, and includes an extension and locking assembly. The element includes a ring of filtration media with a pair of end caps. The first end cap...
US4726903 (A), filed
Apr 18, 1986
, published
Feb 23, 1988
- DICKEY LELAND C
A continuous process for separating charged components of a fluid mixture is disclosed which comprises forming a sorption zone and a desorption zone, said sorption and desorption zones being separated by a boundary of a sorbent material which continuously...
US6156868 (A), filed
May 13, 1999
, published
Dec 05, 2000
- RPC INC
This invention relates to methods of preparing dibasic acids, such as adipic acid for example, by oxidizing a hydrocarbon with a gas containing an oxidant, preferably oxygen. A respective hydrocarbon is reacted with a gaseous oxidant to form dibasic acid in a...
US4848223 (A), filed
Aug 01, 1988
, published
Jul 18, 1989
- MANSFIELD PETER W
A drainage system for expressing liquids and fluids from fibrous materials. The system includes a plurality of spaced apart compression elements each retained in juxaposition one to another so as to have a fluid escape slot between each adjacent compression...
US6294689 (B1), filed
Sep 19, 2000
, published
Sep 25, 2001
- RPC INC
This invention relates to oxidative methods for controlling the oxidation of a class of compounds, including hydrocarbons, such as cyclohexane for example, alcohols, such as cyclohexanol for example, ketones, such as cyclohexanone for example, and peroxides,...
US5417858 (A), filed
May 14, 1993
, published
May 23, 1995
- DERRICK MFG CORP
A screen assembly for a vibratory screening machine including a frame in the nature of a plate having spaced apertures therein, spaced frame members on opposite sides of the apertures, a screen formed in an undulating shape having substantially parallel ridges...
US6053028 (A), filed
Jan 28, 1999
, published
Apr 25, 2000
- EASTMAN KODAK CO
A method and apparatus for evaluating the end cap round transducer horn assemblies used in debubbling operations wherein the ECR THA can be evaluated off-line at both high and low power and on-line by making electrical measurements on the ECR THA. The...
US5547551 (A), filed
Mar 15, 1995
, published
Aug 20, 1996
- GORE ASS
An ultra-thin composite membrane is provided which includes a base material and an ion exchange resin. The base material is a membrane which is defined by a thickness of less than 1 mil (0.025 mm) and a microstructure characterized by nodes interconnected by...
US4668393 (A), filed
May 14, 1985
, published
May 26, 1987
- PARKER HANNIFIN CORP
A fuel filter has a semipermeable spiral baffle with an open circuitous spiral channel between spiral flights of filter media. Fuel may pass radially (inwardly or outwardly) through the media which preferentially slows water and other contaminants such that...
US6875256 (B2), filed
Dec 10, 2003
, published
Apr 05, 2005
- DONALDSON CO INC
Methods for cleaning air intake for a gas turbine system include utilizing filter arrangements that include a barrier media, usually pleated, treated with a deposit of fine fibers. The media is particularly advantageous in high operating temperature (140 to...
US6143927 (A), filed
Mar 12, 1999
, published
Nov 07, 2000
- RPC INC
This invention relates to methods for controlling the oxidation of hydrocarbons to intermediate oxidation products, such as adipic acid for example, by removing the catalyst from the reaction mixture, outside the reaction zone, after the oxidation has taken...
US6794440 (B2), filed
Jul 20, 2002
, published
Sep 21, 2004
- APPLIED ELASTOMERICS INC
A soft gelatinous elastomer composition and article useful as fishing bait formed from one or a mixture of two or more of a hydrogenated styrene isoprene/butadiene block copolymer(s) and one or more plasticizers being in sufficient amounts to achieve a gel...
US4606968 (A), filed
Jul 25, 1983
, published
Aug 19, 1986
- STERN AND STERN TEXTILES INC
An electrostatic dissipating fabric constructed of a woven or knitted base fabric having an integrally woven or knitted grid structure which is raised above the surface of the base fabric thereby resulting in increased electrostatic dissipation performance....
US5159039 (A), filed
Mar 21, 1990
, published
Oct 27, 1992
- POLYSEP SURFACE TECHNOLOGIES I
Method of chromatographically separating a mixture by contacting said mixture under chromatographic separation conditions with a chromatographic separation stationary phase comprising an N-acyl diazepine polymer. In a preferred from, the polymer has been...
US6112572 (A), filed
Jan 05, 2000
, published
Sep 05, 2000
- EASTMAN KODAK CO
A method and apparatus for evaluating the end cap round transducer horn assemblies used in debubbling operations wherein the ECR THA can be evaluated off-line at both high and low power and on-line by making electrical measurements on the ECR THA. The...
US4628037 (A), filed
Jun 13, 1985
, published
Dec 09, 1986
- ADVANCED MAGNETICS INC
A process is provided for the preparation of magnetic particles to which a wide variety of molecules may be coupled. The magnetic particles can be dispersed in aqueous media without rapid settling and conveniently reclaimed from media with a magnetic field....
US7172693 (B2), filed
Aug 09, 2005
, published
Feb 06, 2007
- REID ROGER P
A bracket system holds a filter(s) in quick-attach and quick-release fashion. Brackets are combined in modular fashion, with conduit between the brackets, to create a "bank" of filters easily changed in number, arrangement, and flow scheme. Top brackets and...
US6288270 (B1), filed
Mar 06, 1997
, published
Sep 11, 2001
- RPC INC
Methods for controlling the reaction rate of a hydrocarbon to an acid by making phase-related adjustments are disclosed. In order to improve reaction rate of the oxidation, a single phase at the operating temperature is attained and maintained by adjusting one...
US7048878 (B2), filed
Mar 24, 2003
, published
May 23, 2006
- ABTECH IND INC
A process for forming an oil-sorbent composition of matter with bound combinations of styrene-butadiene-styrene (SBS) and ethylene propylene diene monomer (EPDM) utilizes a low-temperature extrusion process. The SBS, or both materials, may be in the form of...
US7229560 (B2), filed
Dec 06, 2004
, published
Jun 12, 2007
- ABTECH IND INC
One or more water- and oil-porous containers or sacks are made of a pair of mesh sheets affixed together and stiffened around their perimeter. The sacks can be partially filled with a multitude of tubular bodies made of an oil-entrapping polymer, which have...
US5186914 (A), filed
Mar 15, 1991
, published
Feb 16, 1993
- SOCIAL WELFARE FOUNDATION HOKK
An activated carbon has a pencil hardness of B-6B, pore size of 100-400 ANGSTROM , specific surface area of 150-500 m2/g, pore volume of 1.3-5.0 ml/g, and if desired, CEC of 8-13 and is composed of carbon microcrystals irregularly arranged. The activated...
US7276166 (B2), filed
Aug 19, 2004
, published
Oct 02, 2007
- KX TECHNOLOGIES LLC
A fiber-fiber composite is disclosed herein comprising majority fibers and minority fibers, the minority fibers having a softening point lower than said majority fibers such that when the admixture of majority fibers and minority fibers are wet laid to form a...
US5792227 (A), filed
Mar 27, 1997
, published
Aug 11, 1998
- DONALDSON CO INC
Constructions and methods are described for collecting particulate material from gas streams. In one arrangement, there is an outer, air permeable cylindrical liner, and a first region of fibrous depth media positioned immediately adjacent to the air permeable...
US5076915 (A), filed
Jun 22, 1990
, published
Dec 31, 1991
- CHEVRON RES
Disclosed is a gravity settler for separating finely divided solids such as coal fines from a liquid such as a mixture of coal oil and agglomerating agent by agglomeration. A feed slurry comprising finely divided solids and a liquid mixture of product oil and...
US6977043 (B2), filed
Mar 17, 2004
, published
Dec 20, 2005
- MYKROLIS CORP
Hollow fiber membranes having a skinned surface on one diameter, and a porous surface on the opposite diameter are produced from perfluorinated thermoplastic polymers by extruding a heated solution of the polymer having a low critical solution temperature...
US5800587 (A), filed
Feb 12, 1997
, published
Sep 01, 1998
- DONALDSON CO INC
Constructions and methods are described for collecting particulate material from gas streams. In one specifically described arrangement, a region of depth media is oriented upstream of a second region of depth media. A surface loading media is positioned...
US6019809 (A), filed
Mar 06, 1998
, published
Feb 01, 2000
- DONALDSON CO INC
Constructions and methods are described for collecting particulate material from gas streams. In one specifically described arrangement, a region of depth media is oriented upstream of a second region of depth media. A surface loading media is positioned...
US7012136 (B2), filed
Jul 07, 2003
, published
Mar 14, 2006
- TERUO OKANO
A separation material characterized by supporting, in its surface, a linear or crosslinked stimulus responsive polymer to which a substance A having specific affinity for a target substance and a low-molecular substance B having specific affinity for the...
US5578219 (A), filed
Apr 07, 1995
, published
Nov 26, 1996
- AMCOL INTERNATIONAL CORP
A method of treating a water-swellable clay after the clay has been mined and dried to improve its properties when in contact with contaminated water. After the common initial drying of the clay to a moisture content of 12% by weight or less, the clay is...
US5207896 (A), filed
Feb 09, 1990
, published
May 04, 1993
- NORWALK WASTEWATER EQUIPMENT C
A mechanism for wastewater treatment which includes a plurality of solids settling chambers, at least a primary, secondary and a tertiary filter for selectively filtering wastewater and effecting settling of solids of different sizes in the settling chambers...
US4867876 (A), filed
Oct 02, 1987
, published
Sep 19, 1989
- KOPF HENRY B
US5231980 (A), filed
Jan 11, 1991
, published
Aug 03, 1993
- PRAXAIR CANADA INC
A process for the recovery of halogenated hydrocarbons from a gas stream comprises passing the gas stream through a bed of hydrophobic molecular sieve adsorbent, preferably of the high silica zeolite type. Such adsorbent has pore diameters large enough to...
US6924028 (B2), filed
Sep 30, 2003
, published
Aug 02, 2005
- DONALDSON CO INC
Disclosed are improved polymer materials. Also disclosed are fine fiber materials that can be made from the improved polymeric materials in the form of microfiber and nanofiber structures. The microfiber and nanofiber structures can be used in a variety of...
US4329435 (A), filed
May 23, 1980
, published
May 11, 1982
- ASAHI CHEMICAL IND
A novel fluorinated copolymer is prepared by copolymerization of a fluorinated olefin with a novel sulfur containing fluorinated vinyl ether of the formula: IMAGE wherein k is 0 or 1 and l is an integer of 3 to 5, which is prepared from starting materials...
US4359510 (A), filed
Jul 31, 1980
, published
Nov 16, 1982
- CELANESE CORP
The present invention is directed to microporous membranes having a surfactant impregnated therein which is coated on at least one surface thereof with a polymer coating, such as cellulose acetate. The polymer coating possesses functional groups in the...
US4533529 (A), filed
Oct 21, 1983
, published
Aug 06, 1985
- STANDARD OIL CO
Sulfur species are removed from a Claus plant tail gas stream by contacting with zinc oxide in the presence of sufficient reducing equivalents for conversion of sulfur compounds to hydrogen sulfide. In another aspect, sulfur compounds are converted to hydrogen...
US4554307 (A), filed
Nov 16, 1984
, published
Nov 19, 1985
- ALLIED COLLOIDS LTD
US5951863 (A), filed
Jun 20, 1994
, published
Sep 14, 1999
- ABBOTT LAB
Medical drug formulation and delivery system includes a reverse osmosis device for purifying water from a source comprising a housing having an inlet for passage of water from the source, a first outlet for passage of purified water from the housing and a...
US4692245 (A), filed
Oct 07, 1985
, published
Sep 08, 1987
- PARKER HANNIFIN CORP
A filter assembly and associated collection bowl for a dual contaminant collection zone arrangement use a self-sealing o-ring in combination with a threaded mating arrangement in order to withstand high pressure differentials. The filter assembly includes an...
US6197767 (B1), filed
Oct 07, 1998
, published
Mar 06, 2001
- PARACURE INC
The invention provides various derivatives of arglabin, a sesquiterpene lactone isolated from Artemisia glabella. These compounds are effective for suppressing tumor growth in mammals. A method of suppressing tumor growth in humans is also described.
US5154809 (A), filed
Oct 06, 1989
, published
Oct 13, 1992
- MILLIPORE CORP
A process is provided for removing ions from water which is passed through an ion depletion compartment of an electrodeionization apparatus. The electrodeionization apparatus contains an ion depletion compartment containing mixed ion exchange resin beads and...
US6161418 (A), filed
Jan 05, 2000
, published
Dec 19, 2000
- EASTMAN KODAK CO
A method and apparatus for evaluating the end cap round transducer horn assemblies used in debubbling operations wherein the ECR THA can be evaluated off-line at both high and low power and on-line by making electrical measurements on the ECR THA. The...
