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| Number | Title | Issue Date |
| 7789929 | Diesel particulate filter and method for forming such filter A method for forming a diesel particulate filter is presented. The method includes provided an extruder for receiving material to be extruded such extruder being configured to converting such material into a honeycomb structure having a lower portion and an upper po... | 09/07/2010 |
| 7513926 | Filter A filter for the removal of dust from gases The filter comprises filter elements, on which a flat filter material assembled in superficial honeycombs is installed, which increases the filtration surface. The increased filtration area increases the output of the filt... | 04/07/2009 |
| 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 |
| 7431900 | Hydrogen peroxide vapor system with replaceable desiccant cartridge A hydrogen peroxide vapor generation unit (10) receives hydrogen peroxide and water solution at an interface (20) and interconnects with an air dryer (14) by way of nipples (72, 92). In one embodiment, the dryer includes a clamping assemb... | 10/07/2008 |
| 7427308 | Honeycomb filter for exhaust gas decontamination and exhaust gas decontamination apparatus A honeycomb filter for purifying exhaust gases that can almost completely burn and remove particulates accumulated on a wall portion by a regenerating process allowing residual ashes on the wall portion to easily move inside a through hole because the ashes are easi... | 09/23/2008 |
| 7371270 | Odour absorbing filters An odor adsorbing or deodorizing filter which comprises a matrix or substrate impregnated with a mixture of particulate chemically modified activated carbon and particulate activated carbon, together with a binder. The filter may be incorporated into an ostomy colle... | 05/13/2008 |
| 7332011 | Equipment air filter assembly A filter assembly for a structure having an air intake, the filter assembly including a filter media that is sized and shaped to cover the air intake. The ends of the filter media are connected by an elastic fastener, such that the filter media and the fastener enci... | 02/19/2008 |
| 7326272 | Synthetic, duolayer, filter element A multilayer, pleatable, filter material is made of at least one melt-blown, fleece layer and at least one carded, fleece layer that are attached to one another without use of adhesives for filtering solid particles out of fluids, in particular, filtering solid part... | 02/05/2008 |
| 7311751 | Filter medium A filter medium includes at least a first and a second layer. Both first and second layers have a layer volume VLq and a layer filtering surface SLq, where SLq is the accumulation of all mantle surfaces of the fibers present in this layer q. The first layer has a SL... | 12/25/2007 |
| 7300486 | Filter elements having injection molded thermoplastic seals and methods of making same Seals for filter elements having filter packs with seals around the periphery thereof adjacent to one of the faces are produced by injection molding the seal onto the filter pack using a cell-less thermoplastic material. Preferably, the thermoplastic material is com... | 11/27/2007 |
| 7294162 | Exhaust filter An exhaust filter having a pleated filter media mounted between end caps is disclosed herein. The filter has a construction suitable for high temperature environments such as engine exhaust systems. ... | 11/13/2007 |
| 7264645 | Plate-shaped filter element A plate-shaped filter element made from several wire cloth layers and having at least one layer in the form of a filter cloth is designed to allow particles of a certain size can be filtered out from a filterable material, whereby, in particular, particles can be fi... | 09/04/2007 |
| 7261755 | Heat-resistant filter layer, filter body, and process for producing the filter layer and the filter body Within the framework of the purification of exhaust gases of mobile internal combustion engines, filter materials are subjected to particularly high thermal and dynamic conditions. As a result, it is advantageous to use filter materials together in a stable and dura... | 08/28/2007 |
| 7255838 | Apparatus with nano-sized platinum black and oxygen-rich ceramic powder for filtering the incoming air into an internal combustion engine An air filter for an internal combustion engine having a rigid type ceramic filter element made by foaming oxygen-rich ceramic powder for creating a plurality of pass-through holes. In this way, the incoming air obtains a thorough contact with the oxygen-rich powder... | 08/14/2007 |
| 7250067 | Gas and odour treatment The present invention relates to a product for, and a method of, treating gases, fumes and vapors with fragments of crustacean shell so as to extract one or more components/pollutants from the gases. ... | 07/31/2007 |
| 7208026 | Heat-resistant filter To provide a heat resistant filter of which the reduction of tensile strength and folding endurance is small even when used as a filter material for a filter used at high temperatures, failure of the filter material is difficult even when used at high temperatures, ... | 04/24/2007 |
| 7135134 | Method for forming microscopic polymer interconnections Polymer fiber interconnects are produced between microscale features on substrate using only electrostatic forces. In one embodiment, electric field driven directed growth of fibers is achieved between microscale droplets of a concentrated polymer solution deposited... | 11/14/2006 |
| 7112272 | Liquid and gas porous plastic filter and methods of use The filtration device of the present invention relies on materials and methodologies that achieve the formation of a structural matrix that may later accommodate the addition of other adsorbent materials as opposed to merely binding adsorbent materials together thro... | 09/26/2006 |
| 7097682 | Ventilation filter medium for container, and container and container cap equipped with ventilation filter medium The present invention provides a culture container and a cap for a container having a ventilation filter medium or a medium similar thereto that can exchange carbon dioxide gas in the culture container with atmospheric air, and prevent the contamination of sterilize... | 08/29/2006 |
| 7077884 | Hydrogen sulfide scrubber using polymeric amine and associated methods A hydrogen sulfide scrubber includes first and second scrubber tanks with scrubber media contained therein. Scrubbing solution circulators each include a dispenser for dispensing scrubbing solution into contact with the scrubber media, a sump for collecting the scru... | 07/18/2006 |
| 7052809 | Membrane and reticle-pellicle apparatus with purged pellicle-to-reticle gap using same A gas porous media which comprises a material having a low coefficient of thermal expansion that is capable of retaining 99.99% or more of particles of a size of about 0.003 microns and larger at 0.2 slpm/cm2 while demonstrating a permeability of 3.5×10 | 05/30/2006 |
| 7041146 | Pre-filters for engine air cleaning systems An air cleaner for a vehicular engine includes a pre-filter which receives air flow containing particulates and a primary filter which receives the air from the pre-filter. The pre-filter removes a first proportion of particulates from the air, and the primary filte... | 05/09/2006 |
| 7037359 | Grease containment system A device, system, and method for collecting grease on rooftop exhaust fans, comprising a gasket formed of sorbent material. The gasket is dimensioned for placement between an exhaust fan and a base for the exhaust fan. When placed between the exhaust fan and the bas... | 05/02/2006 |
| 7025800 | Methods of measuring the diffusion rate and partition coefficient of an analyte into a polymer and methods of forming a filter media A method of determining the diffusion rate of a given analyte into a polymer film using an optical waveguide interferometer is disclosed. A method of forming a filter media by selecting a polymer for the sorbent system of the filter media based on the diffusion rate... | 04/11/2006 |
| 7014693 | Filters employing both acidic polymers and physical-adsorption media A filter includes at least two different adsorptive media. First, chemisorptive media, which is porous and includes an acidic functional group, is used to remove molecular bases, including ammonia, organic amines, imides and aminoalchols, from the atmosphere used in... | 03/21/2006 |
| 6921594 | Exhaust treatment and filtration system for molten carbonate fuel cells A filter system for adsorbing contaminants from an exhaust stream from a molten carbonate fuel cell including a filter substrate, a high surface area inorganic adsorbent secured to the filter substrate by an inorganic binder and an inorganic acid secured to the filt... | 07/26/2005 |
| 6883321 | Filter assembly for exhaust gases An in-line filter assembly for filtering engine exhaust gases utilized by turbocharged internal combustion engine systems. The filter assembly includes an external housing having a lower housing section and an upper housing section. The upper housing section further... | 04/26/2005 |
| 6875257 | Particle filter for microelectromechanical systems A particle filter for microelectromechanical systems is provided that includes a particle trap formed on a substrate material. The particle trap includes an array of multidimensional geometric structures in an adjacent relationship. The geometric structures further ... | 04/05/2005 |
| 6827764 | Molded filter element that contains thermally bonded staple fibers and electrically-charged microfibers A filter element that comprises a porous molded web 10′ that contains thermally bonded staple fibers 12 and non-thermally bonded electrically charged microfibers 14. The molded web is retained in its molded configuration, at least in part, by ... | 12/07/2004 |
| 6797041 | Two stage air filter A two stage air purification system is provided for the removal of airborne impurities from an airflow prior to the airflow entering a building's ductwork. In particular, a primary air filter is mounted within the hood of, for example, a cooking area and operable to... | 09/28/2004 |
| 6755016 | Diesel engine particle filter A diesel particle filter for lowering the emission of particles contained in the exhaust gas of a Diesel engine, is disclosed with the impaction surface of the diesel particle filter is developed such that binding forces of the ash to filter is lowered. Therefore, t... | 06/29/2004 |
| 6749656 | Heating, ventilating and/or air conditioning device comprising at least an air diffusing element in a motor vehicle passenger compartment The invention concerns a heating, ventilating and/or air conditioning device comprising at least an air distribution channel having a downstream end, and at least an air diffusing element arranged at said one downstream end. The invention is characterized in that th... | 06/15/2004 |
| 6746504 | Filter for use in medical procedures A gas filler device for use in medical procedures such as laparoscopy is disclosed. Preferably, the gas filter device includes a housing having a first side wall and a second side wall, and a gas filter including a porous element including a hydrophobic membrane, th... | 06/08/2004 |
| 6723147 | Air-permeable filter for ink cartridge and ink cartridge comprising same An air-permeable filter for an ink cartridge includes at least one porous material layer including at least one resin selected from the group including fluororesin and polyolefin resin, and at least one air-permeable substrate layer having a tensile strength of 1 MP... | 04/20/2004 |
| 6716512 | Honeycomb structure and process for production thereof A honeycomb structure having, in the axial direction, a number of through-channels separated by partition walls, which honeycomb structure contains refractory particles and a vitreous component and is porous. Although the honeycomb structure contains refractory part... | 04/06/2004 |
| 6681412 | PTFE membrane filter for exhaust air of vacuum toilet system A filter arrangement for a vacuum toilet system includes a filter element arranged in a filter housing connected to a waste water tank of the vacuum toilet system. The filter element includes a polytetrafluoroethylene (PTFE) filter membrane on the inlet s... | 01/27/2004 |
| 6680028 | Portable air purifier apparatus and system A portable air purifier system and apparatus which includes a multi-element filter pack that is replaceable as a single unit, thus facilitating health safety of maintenance personnel. By serially disposing filter elements in order of descending sizes of p... | 01/20/2004 |
| 6616723 | Method and apparatus for spinning a web of mixed fibers, and products produced therefrom A fiber spinning device and process for manufacturing a web of fibers including a homogeneous mixture of fibers of different characteristics. Monocomponent fibers of different polymers can be extruded side-by-side from the same die system. Sheath/core bic... | 09/09/2003 |
| 6602311 | Method and apparatus for spinning a web of mixed fibers, and products produced therefrom A fiber spinning device and process for manufacturing a web of fibers including a homogeneous mixture of fibers of different characteristics. Monocomponent fibers of different polymers can be extruded side-by-side from the same die system. Sheath/core bic... | 08/05/2003 |
| 6596049 | Method and apparatus for spinning a web of mixed fibers, and products produced therefrom A fiber spinning device and process for manufacturing a web of fibers in the nature of a homogeneous mixture of fibers of different characteristics. Monocomponent fibers of different polymers can be extruded side-by-side from the same die system. Sheath/c... | 07/22/2003 |
