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| Number | Title | Issue Date |
| 7588617 | High efficiency grease filter cartridge A grease filter has a filtering portion configured such that fumes enter a major face thereof and flow through a grease extraction filter therewithin in a direction parallel to the major face. A frame that fits into an opening of a hood defines a box structure that ... | 09/15/2009 |
| 7314495 | Process and device for eliminating the particles contained in a stream of fluid The present invention relates to a process and a device for eliminating particles from a stream of fluid, having a channel for turbulent flow of the fluid and a series of objects placed along the channel. ... | 01/01/2008 |
| 7070636 | Cyclonic vacuum cleaner with filter and filter sweeper A bagless vacuum cleaner (10) includes a nozzle assembly (16) having a suction nozzle for picking up dirt and debris from a surface to be cleaned and a canister assembly (18) including a cavity (32). A dust collection assembly (12)... | 07/04/2006 |
| 7052532 | High temperature nanofilter, system and method A filter, system and method is provided for filtering nanoparticles in a hot gas, namely particles about 200° C. and further particularly >about 450° C. including diesel exhaust. The filter includes filter media material composed of fibro... | 05/30/2006 |
| 6451093 | Centripetal demister A centripetal demister system and method for the removal of moisture from a moisture laden gas stream using both centrifugal and centripetal force to shear the moisture from a inlet gas, the centripetal force also directing the inlet gas radially inward f... | 09/17/2002 |
| 6432179 | Vapor-adsorbent filter for reducing evaporative fuel emissions, and method of using same A filter, for use in removing residual fuel vapors from within an engine's intake system, includes a filter element having a plurality of fibers, for placement in communication with an intake air flow passage. Each of the fibers has an internal cavity for... | 08/13/2002 |
| 6090183 | Method and apparatus for processing exhaust gas produced during manufacturing of semi-conductor devices A method for processing an exhaust gas produced during manufacturing of semiconductor devices including the steps of introducing a thermally disintegrable or thermally oxidizable exhaust gas produced during manufacturing of semiconductor devices into a pr... | 07/18/2000 |
| 6068674 | Removal of suspended fine particles from gases by turbulent deposition An apparatus for removing particles from a fluid stream includes an unobstructed channel for conveying a stream in turbulent flow and a series of objects extending at least along one side of the channel, the objects being closely spaced from each other in... | 05/30/2000 |
| 5922092 | Bottom feed - updraft gasification system A gasification system for solid wastes having a thermal reactor and a mechanical gas cleaner, an indirect heat exchange cooler, and an electrostatic precipitator for cleaning and cooling the produced gas. Feed material is continuously fed to the central s... | 07/13/1999 |
| 5536298 | Method of treating fine particle dust in manufacturing process of semiconductor elements and apparatus therefor In a method of treating a fine particle dust in a manufacturing process of semiconductor elements wherein the fine particle dust is separated and collected from an air which includes the fine particle dust produced from a source of generating the fine par... | 07/16/1996 |
| 5480465 | Air/foreign material separator A device for separating foreign material from air. A main frame includes a chamber having one or more inlet tubes, an air outlet, and a foreign material outlet. An air pump forces the air including the foreign material into the chamber via the inlet tubes... | 01/02/1996 |
| 5464310 | Conveyor conduit for bulk material to be pneumatically conveyed In a conveyor conduit comprising at least one valve having a movable closure body, for loose material which is to be pneumatically conveyed, the closure body of the valve is permeable to the conveying air in the closure position of the valve in which it b... | 11/07/1995 |
| 5329765 | Exhaust pipe assembly for treating the exhaust of an internal combustion engine An exhaust pipe assembly is composed of a circuitous filter route surrounded by a cooling water container for treating the exhaust out of an internal combustion engine, permitting the exhaust to be cooled down, the noise generated to be muffled, and solid... | 07/19/1994 |
| 5219469 | Filter medium having flock islands of fibers anchored by calotte shaped adhesive deposits A unitary filter medium that is composed of a sheet of porous substrate that has bonded to its upstream surface a plurality of separate spaced apart islands of flock fibers, the fibers of adjacent islands at least partially overlapping. The flock fibers a... | 06/15/1993 |
| 5181945 | High-temperature fabric filter media An efficient, highly porous fabric filter medium capable of filtering air at temperatures up to about 500° F. (260° C.) has been provided. The filter medium is made from a polyimide fiber and is especially well suited for use in combination with a rotat... | 01/26/1993 |
| 5145492 | Apparatus for the treatment of filter sludge consisting predominantly of diatomite and method of operating same An apparatus for the treatment of diatomite, especially in a filtration sludge for disposal in a landfill or reuse as a filtration aid, having a flow dryer followed by a cyclone and filter separator. The dry product is then subjected to treatment in a hig... | 09/08/1992 |
| 5111547 | Method for forming precision liquid/vapor separating bristle assembly A bristle assembly and method for making the same. The bristle assembly is particularly useful for forming into a brush-like arrangement for use in separating the liquid and vapor phases for determining the steam quality in a thermal injection well as des... | 05/12/1992 |
| 5085766 | Filter for cleaning fluids The filling of a filter for removing contaminants from air and other fluid is constituted by hanging freely-moving foil strips coated with active carbon and provided with a microorganism culture for biodegradation of the contaminants. Excess culture and d... | 02/04/1992 |
| 5030263 | Motor vehicle filter element A pleated paper filter element is disclosed which is formed from a mechanically-treated filter paper (10') which has the side thereof opposite to the wire-side (12) mechanically teased so as to form thereon an open, textured layer (18) of raised fibers. T... | 07/09/1991 |
| 4983290 | Slit-tube filter A slit-tube filter has a hollow cylindrical filter element of bent wires which are attached to vertical retaining supports and form horizontal slits between themselves through which the liquid to be filtered passes, the cylindrical inner wall of the filte... | 01/08/1991 |
| 4981501 | Adsorption filter with high air permeability The adsorption filter has a highly air-permeable, three-dimensional carrier framework essentially stable in shape, to which a layer of granular adsorber particles with a diameter of 0.1 to 1 mm is affixed. The carrier framework can be composed of wires, m... | 01/01/1991 |
| 4976934 | Nested, recirculating-fiber filter A recirculating fiber filter (1) and method is provided for removing particulates from moving fluid streams. High aspect ratio fibers (2) are used which readily nest with each other to form the high voidage fiber filter bed. In the method, fibers are cont... | 12/11/1990 |
| 4906263 | Adsorption filter with high air permeability The adsorption filter has a highly air-permeable, three-dimensional carrier framework essentially stable in shape, to which a layer of granular adsorber particles with a diameter of 0.1 to 1 mm is affixed. The carrier framework can be composed of wires, m... | 03/06/1990 |
| 4787920 | Scrubber filter A scrubber filter used, for example, in connection with a flooded bed scrubber system, characterized as a series of nylon or plastic brushes arranged, in rows, within a frame and overlaid with mesh, where the filter is disposed, during use, in a tilted re... | 11/29/1988 |
| 4783259 | Helical coil filter element A fluid filter having a deformable filter body containing a myriad of filter passageways which may be enlarged to clean the filter by deforming the body. The presently preferred filter embodiment has a fluid permeable filter mass comprising a compact mass... | 11/08/1988 |
| 4322232 | Filter bag and method for suppressing electrostatic charges A fabric filter bag, a method of making such a bag, and apparatus using such bags, in which the bag is a tube of yarn knit into stitches defining a ground and stitches defining terry loop pile extending from the ground. In accordance with the present inve... | 03/30/1982 |
| 4289510 | Internal loading cylindrical filter with unsupported tubular filter fabric An internal loading cylindrical air filter apparatus having a circular tubular knit pile fabric filter element extending unsupported between end plates to provide an essentially full length unobstructed filter area, and having a rotating internal suction ... | 09/15/1981 |
| 4284507 | Knit pile filter A filter, and apparatus and methods using the filter, in the form of a knitted fabric having particular characteristics and effective for separating materials from flowing fluid streams.... | 08/18/1981 |
| 4229386 | Mass or heat transfer or separation of solid or immiscible components from fluids A packed column comprising a bed of bodies of fibrous material for the interphase transfer of mass and/or heat and the separation of solids or immiscible phases from fluids. Each body is of generally cylindrical form and includes a centrally disposed axia... | 10/21/1980 |
| 4167482 | Filtering method and apparatus A filtering apparatus has a housing and a brush-like filter element in the housing. The filter element includes a support which is permeable to the liquid or gas to be filtered. A filtering medium is secured to the permeable support and is in the form of ... | 09/11/1979 |
| 4092246 | Helically wound blood filter A filter for the filtration of blood characterized by a high flow rate with low pressure drop, which filter comprises: a filter housing; an inlet in the housing for the introduction of the blood to be filtered; an outlet in the housing for the removal of ... | 05/30/1978 |
| 3977847 | Filtration method and apparatus A particle laden gas stream is cleaned by passing it through an all metal fabric including a base with pile fibers connected to the base. The flowing gas forces the pile fibers to lie down upon each other to form a depth filter media adapted to entrap fin... | 08/31/1976 |
| 3942232 | Vent structure fabrication method A vent structure for reliable long term operation at high temperatures is fabricated by annealing a tubing of predetermined length and size, placing a predetermined number of strands of stabilized zirconium oxide yarn of predetermined diameter longitudina... | 03/09/1976 |
