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| Number | Title | Issue Date |
| 8011519 | Mullite module for liquid filtration The disclosure relates to a material suitable for forming a honeycomb monolith for liquid filtration and, more particularly, to a mullite material for forming a cross-flow filtration device for separating a feed stock into filtrate and retentate, methods for forming... | 09/06/2011 |
| 7946431 | Ultrafiltration process An inorganic membrane suitable for ultrafiltration or nanofiltration, and methods for making and using the membrane. The membrane has a organic polymer deposited on the feed surface, but is not able to perform separations by solution-diffusion. ... | 05/24/2011 |
| 7784621 | Ultrafiltration membrane and process An inorganic membrane suitable for ultrafiltration or nanofiltration, and methods for making and using the membrane. The membrane has a organic polymer deposited on the feed surface, but is not able to perform separations by solution-diffusion. ... | 08/31/2010 |
| 7632403 | Liquid filtration system In some embodiments, a filtration system may include one or more of the following features: (a) a housing having a bottom portion, a middle portion coupled to the bottom portion and an upper portion, and a cap coupled to the upper portion, (b) a sediment storage are... | 12/15/2009 |
| 7591947 | Porous membrane microstructure devices and methods of manufacture A membrane microstructure device is disclosed. The membrane microstructure device includes a first glass, ceramic or glass-ceramic plate defining a first recess, a second glass, ceramic or glass-ceramic plate defining a second recess, and a non-metallic porous membr... | 09/22/2009 |
| 7491330 | Silver chloride treated water purification device containing the porous grog and method for making same A porous grog with a body composition of water, clay and combustible material. Further, an earthenware water purification filter utilizing the porous grog in the body composition of the filter. Further, an earthenware filter utilizing silver chloride treatment for w... | 02/17/2009 |
| 7441664 | Water treatment devices and cartridges therefor A cartridge for treating water, the cartridge capable of releasably engaging a water treatment device. The cartridge includes a housing, an inlet for introducing untreated water into the cartridge, an outlet port for egress of treated water from the cartridge, and a... | 10/28/2008 |
| 7442303 | Microporous filter membrane, method of making microporous filter membrane and separator employing microporous filter membranes A filter membrane, methods of making such filter membrane and apparatus employing such filter membrane are disclosed, in which the filter membrane is a monolithic polymeric membrane that includes a polymeric filter layer including a micron-scale precision-shaped por... | 10/28/2008 |
| 7419060 | Integrated fuel container and impurity removal cartridge A fuel supply for a fuel cell including a fuel container and an impurity removal cartridge connected to the fuel container, where both the fuel container and the impurity removal cartridge are integrated into a single unit. ... | 09/02/2008 |
| 7396461 | Filter cartridge for gravity-fed water treatment device A filter cartridge for use in gravity-fed water treatment systems wherein filter elements include a dome-shaped hydrophilic porous particulate carbon powder block filter in a polymeric binder. The filter has a closed upper end and an open lower end with sidewalls ex... | 07/08/2008 |
| 7390343 | Drinking water filtration device The invention is a device for purifying drinking water that has at least one fibrous structure. Preferably, there is an upstream and downstream fibrous structure. Each fibrous structure is a mixture of nano alumina fibers and second fibers arranged in a matrix to cr... | 06/24/2008 |
| 7361272 | Anisotropic porous material The present invention is to provide an anisotropic porous material for a fluid filter which can perform a separation process of a large amount of fluid with high accuracy, which can achieve high flux, and which can improve detergent properties. The anisotropic porou... | 04/22/2008 |
| 7357868 | Nanocrystal-containing filtration media The invention relates to filtration media having nanocrystals of metal oxides, encapsulated in or impregnated into a binder matrix, which binds together particles of activated carbon. The filtration media can be compressed into a filtration block, has low pressure d... | 04/15/2008 |
| 7339653 | System for a pellicle frame with heightened bonding surfaces A method and apparatus for maintaining an optical gap between optical structures in a photolithography system is described. A frame defines first and second opposing surfaces. The first opposing surface defines a first opening and the second opposing surface defines... | 03/04/2008 |
| 7329311 | Porous sintered composite materials The present invention is directed to porous composite materials comprised of a porous base material and a powdered nanoparticle material. The porous base material has the powdered nanoparticle material penetrating a portion of the porous base material; the powdered ... | 02/12/2008 |
| 7316780 | Range separation devices and processes Separation device comprising a feed channel including a shear region, permeate passage(s) extending perpendicular to the direction of the feed flow and a porous medium positioned between the shear region of the feed channel and the permeate passage(s). Separation pr... | 01/08/2008 |
| 7316323 | Filters having improved permeability and virus removal capabilities A filter block having a permeability of greater than about 3.0*10−9 cm2, and a F-VLR of greater than about 99% is provided. The filter block may be made of filter particles having a median particle size of less than about 50 microns and havin... | 01/08/2008 |
| 7311752 | Electrostatic air filter The invention is a filter for gaseous media in which nano alumina fibers and second fibers are arranged in a matrix to create asymmetrical pores. The filter is a high efficiency, high capacity particulate filter that intercepts pathogens and other particulate matter... | 12/25/2007 |
| 7306642 | High CTE reaction-bonded ceramic membrane supports A porous ceramic support for a gas separation membrane formed by sintering a green body containing grains of a refractory ceramic oxide with a high coefficient of thermal expansion and grains of a reactive binder precursor. Upon sintering, the reactive binder precur... | 12/11/2007 |
| 7300579 | Flocculation apparatus A flush mixing tank is provided with a flocculant mixing section in which a raw water a to be treated is introduced and a flocculant such as known aluminum sulfate or polychlorinated aluminum is injected, and then they are agitated and mixed; and a floc growing sect... | 11/27/2007 |
| 7297271 | Titanium powder sintered compact Provided are a porous sintered compact suitable for a filter, a power feeder in a polymer electrolyte membrane type water electrolyzer, a current collector in a solid polymer fuel cell and in addition a liquid dispersion plate, especially an ink dispersion plate for... | 11/20/2007 |
| 7297263 | Efficient water filters Water treatment devices that include filtration media with specified grain size distributions are provided. In one arrangement, the device contains a volume of grains such that between about 1 and 15 vol % of the grains have a grain size in a range between a first g... | 11/20/2007 |
| 7294164 | Narrow pore size distribution aluminum titanate body and method for making same This invention relates to an aluminum titanate body having a narrow pore size distribution as characterized by the relation (d50−d10)/d50 being less than 0.50 corresponding to a high degree of interconnected porosity. The body also... | 11/13/2007 |
| 7288199 | Ceramic filter and method for purifying water A ceramic filter is provided including a substrate, a separation layer comprising titania and having an average pore size in a range of 0.08 to 1 μm and a thickness in a range of 5 to 20 μm, and an intermediate layer formed between the substrate and the separation... | 10/30/2007 |
| 7285214 | Honeycomb structure and method of manufacturing the same There are disclosed a honeycomb structure which is preferably usable as a filter, for example, for trapping particulates in an exhaust gas of an internal combustion engine, boiler or the like or for filtering liquids such as city water and sewage and in which an inc... | 10/23/2007 |
| 7282148 | Porous silicon composite structure as large filtration array A novel asymmetric filter membrane, and process for making is disclosed in several exemplary versions. The membrane structure is physically robust and suitable for use in a wide variety of applications. The support membrane is may be comprised of material such as a ... | 10/16/2007 |
| 7276163 | Membrane devices with controlled transmembrane pressure and method of use A crossflow membrane device that receives a feedstock at a feed end face and separates the feedstock into permeate and retentate. The device has a membrane support containing at least one monolith of porous material defining a plurality of passageways extending long... | 10/02/2007 |
| 7264726 | Nanocrystal-containing filtration media The invention relates to filtration media having nanocrystals of metal oxides, encapsulated in or impregnated into a binder matrix, which binds together particles of activated carbon. The filtration media can be compressed into a filtration block, has low pressure d... | 09/04/2007 |
| 7261813 | Monolithic structures comprising polymeric fibers for chemical separation by liquid chromatography Monolithic cartridges including a plurality of nominally aligned polymer fibers can be used as stationary phase materials for liquid chromatography separations. Bundles of fibers are packed together so as to form capillary channels between the fibers. Different poly... | 08/28/2007 |
| 7258784 | Solid liquid filtration apparatus and method A method and system for separating a particulate contaminate from a contaminated liquid medium involves filtering the contaminated liquid medium with a filter element having an afflux surface made of plastic particles that are sintered together. The contaminated liq... | 08/21/2007 |
| 7240482 | System for minimizing the impact of poisoning of automotive exhaust aftertreatment systems An exhaust aftertreatment system for an internal combustion engine is disclosed which mitigates deleterious poisoning of a catalytic converter or exhaust gas oxygen sensor by phosphorus containing species. ... | 07/10/2007 |
| 7238402 | Glass fibers and mats having improved surface structures in gypsum boards A gypsum board having roughened surface glass fiber reinforcement. The roughened surface of glass fiber is created by incorporating nano or micro particles of colloidal silica or clay or other inorganic particles in a silane based sizing composition. The sizing coat... | 07/03/2007 |
| 7208081 | Gutter foam filter The gutter foam filter elements are generally triangular, four-foot lengths of flexible plastic open-cell foam material placed in and extending the full length of a conventional “K” type or similar roof gutter. The foam filter elements may be inserted within the... | 04/24/2007 |
| 7201212 | Investment casting A method and apparatus are used to cast a number of elements such as turbine engine blades. The blades have an airfoil and a root for securing the blade to a disk. A number of mold sections each have internal surfaces for forming an associated at least one of the el... | 04/10/2007 |
| 7201841 | Composite materials for fluid treatment This invention relates generally to composite materials and to devices which may alter fluid parameters. Devices incorporating the composite materials of the invention are used to deliver, remove, and generate, fluid treatment agents, and combinations thereof. These... | 04/10/2007 |
| 7172076 | Internal die filters with multiple passageways which are fluidically in parallel An internal filter includes a lower substrate and an upper substrate. Fluid passages are formed by etching grooves into the surfaces(s) of the upper and/or lower substrates and/or in one or more intermediate layers. The filter pores extending between the fluid passa... | 02/06/2007 |
| 7169213 | Multi-channel cross-flow porous device A multi-channel modular device (10) processes between two fluid streams of different compositions. The device (10) includes a porous body (150) having a first plurality of feed-flow pathways (110) disposed in the body (150) for tra... | 01/30/2007 |
| 7160453 | Filter for removing contaminants from water A filter for removing contaminants from water. The filter has a first porous filter part formed by setting an active carbon in a high-molecular low-melt index polymeric binder. An inlet directs water to be filtered to the first porous filter part. An outlet directs ... | 01/09/2007 |
| 7157043 | Bonded particle filters An apparatus for filtering molten metal held in a vessel before the metal enters the dosing tube. The filtering apparatus includes an attachment portion that mounts to the dosing tube, a filter body connected to the attachment portion and a planar surface attached t... | 01/02/2007 |
| 7140495 | Layered sheet construction for wastewater treatment Described is an apparatus for the removal of organic substances and/or nitrogen sources from an aqueous medium by exposing the aqueous medium to the action of microorganisms supported on a gas permeable, water impermeable layer, or on and/or in a three dimensional m... | 11/28/2006 |
