Class / Patent application number | Description | Number of patent applications / Date published |
095286000 | Plural separate media | 42 |
20090120292 | Barrier filter high particulate entry design - A fabric filter (barrier filter) with an inlet design for high particle load that allows for individual compartments in a row to be isolated by closure of a sloped inlet damper by which the sloped design allows particulate during damper closure to flow to the opposing compartment hopper preventing damper failure from the accumulated weight of the particulate load. | 05-14-2009 |
20090193973 | VACUUM AND AMBIENT AIR HEPA FILTRATION SYSTEM - Combining a HEPA air filtration system and a central vacuum system obtains a synergistic effect of cleaning air particulates in a room. The particulate count of the current invention provides an unexpectedly low result that can at best be described as synergistic. | 08-06-2009 |
20090211451 | Ductless fumehood system - A modular filtration column for use with a ductless fumehood, the modular filtration column comprising:
| 08-27-2009 |
20090266234 | Fabric Filter With Fluidised Dust-Bed, and a Method of Maintaining It - A fabric filter ( | 10-29-2009 |
20100154640 | Process and Honeycomb Body for Purifying and/or Regenerating Gases - Process for purifying and/or regenerating gases, in which the gas to be treated is fed to at least one layer of adjacently arranged prismatic honeycomb bodies ( | 06-24-2010 |
20100199843 | IMPACT DIESEL PARTICULATE FILTER - An emission reduction device which may be removably affixed to a diesel engine's exhaust system. The device comprises an outer casing which may be divided into a lower portion and an upper portion, the lower portion of which is removably attachable to the exhaust system of a diesel engine; a carcass for holding a bobbin wherein the carcass is attached to the lower portion of the outer casing at the point where the exhaust enters the outer casing and the carcass has a beveled opening in a diagonal line in its proximal part and a bobbin positioned in its distal part; one or more fibrous blanket cylinders; and a guide for arranging and securing the one or more fibrous blanket cylinders within the outer casing. The fibrous blanket cylinders may be wrapped in a wire mesh. In an alternative embodiment, a second fibrous blanket formed into a cone with the larger diameter of the cone positioned proximally may be removably inserted in the carcass. | 08-12-2010 |
20110017065 | MOBILE AIRBORNE CONTAMINANT CONTROL CHAMBER - The present invention is a mobile air contaminant control system that includes a filter assembly enclosed by a mobile outer chamber. The filter assembly is tapered to create a large volume air way downstream from the filter assembly that enables more even air flow and filter loading. One or more exhaust fans pull the air through the filter assembly and exhaust it to the exterior of the chamber. The system is functionally attached to an exterior structure having at least one air intake and housing a work piece. As airborne contaminants are generated from the work piece(s), the control system exhausts them from the exterior structure through the filter assembly and into the external environment. | 01-27-2011 |
20110146490 | AIR FILTER WITH EXTENDED LIFE - An extended life filter element is provided that may at least double the service interval of a given filtration application utilizing the same or similar filter housing envelope provided. The filter element may include a more open pleated substrate with an efficiency layer and a prefilter on the upstream surface. The filter may be a foam sleeve. One exemplary application is for air filtration of air flow to electrical cabinets on locomotives. | 06-23-2011 |
20110197767 | PORTABLE DUST COLLECTOR - A portable dust collector comprises a rectangular box-shaped housing containing a rectangular box shaped filter chamber having a dust collection volume in a lower portion thereof and providing plenums for operative gas circulation in a compact environment. The filter chamber shares a portion of the floor with the housing and has a pair of internal parallel sidewalls spaced inwardly from the outside sidewalls of the housing. The internal sidewalls define a plurality of filter chamber dirty gas inlets located just under an apertured cell plate from which the filters hang. The system is provided with a pulse jet cleaning system located in the clean air plenum above the cell plate. | 08-18-2011 |
20120079942 | FILTRATION SYSTEM AND METHOD OF DESIGN - A filtration system comprising at least one filter element, at least a first and a second filter media that are different to one another and are arranged in a parallel relationship, wherein fluid flow through the filtration system comprises a first fluid flow portion that flows through the first media and a second fluid flow portion that flows through the second media. | 04-05-2012 |
20120090469 | MULTICARTRIDGE DIESEL SOOT PARTICULATE FILTER - The invention relates to a multicartridge diesel soot particulate filter ( | 04-19-2012 |
20120111199 | DIESEL SOOT PARTICULATE FILTER CARTRIDGE - The invention relates to diesel soot particulate filter cartridge having a central filter cartridge axis. The filter cartridge has a radial flow. The filter cartridge comprises a porous structure. The porous structure is coiled around the central filter cartridge axis. The porous structure comprises non-sintered metal fibers, said fibers having a roughness being higher than 1.7. The invention further relates to a method of manufacturing a diesel soot particulate filter cartridge. Furthermore the invention relates to a multicartridge diesel soot particulate filter. The flow through the multicartridge diesel soot particulate filter is axial while the flow through the filter cartridges is radial. | 05-10-2012 |
20120174788 | WEDGE-SHAPED FILTER ELEMENT WITH TWO LEAF FILTERS - A filter element includes a holding frame with an intake opening, an air intake disposed on the intake opening, and an anti-twist mechanism configured such that the filter element is only insertable into a filter housing in one position. The anti-twist mechanism includes a body with two asymmetrically configured recesses extending along a longitudinal axis of the holding frame. The filter element also includes two bellows disposed on the holding frame, the bellows and holding frame delimiting a cavity. | 07-12-2012 |
20120285324 | Filter with Specified Flow Path Combinations - A filter includes a plurality of annular filter elements arranged in axially staggered relation. An axial flow path includes a plurality of flow path segments, some being filtered by a respective filter element, and others bypassing a respective filter element. Various combinations are provided. | 11-15-2012 |
20120304861 | DEVICE FOR REDUCING SOOT PARTICLES AND METHOD FOR THE SAME - The present invention relates to device and method for reducing soot particles. | 12-06-2012 |
20140360371 | Portable Dust Collector - A portable dust collector comprises a rectangular box-shaped housing containing a rectangular box shaped filter chamber having a dust collection volume in a lower portion thereof and providing plenums for operative gas circulation in a compact environment. The filter chamber shares a portion of the floor with the housing and has a pair of internal parallel sidewalls spaced inwardly from the outside sidewalls of the housing. The internal sidewalls define a plurality of filter chamber dirty gas inlets located just under an apertured cell plate from which the filters hang. The system is provided with a pulse jet cleaning system located in the clean air plenum above the cell plate. | 12-11-2014 |
20150114229 | METHOD AND SYSTEM FOR ONLINE REPLACEMENT OF GAS TURBINE INLET AIR FILTER ELEMENTS - A method and system for online filter element replacement are provided. The system includes a filter chamber and a tubesheet dividing the filter chamber into a dirty air compartment and a clean air compartment, the tubesheet including a plurality of apertures therethrough. The system also includes a plurality of filter elements positioned in the dirty air compartment and coupled to the tubesheet in flow communication with a respective one of the plurality of apertures such that air entering the clean air compartment from the dirty air compartment passes through at least some of the plurality of filter elements and respective apertures and a shutter operatively positioned in the clean air compartment and configured to selectably cover at least one of the plurality of apertures. | 04-30-2015 |
20150328962 | USE OF A FILTER ELEMENT FOR THE ADSORPTION OF HYDROCARBONS - The use of a filter element with a body which has material which is suitable for adsorption of gases and vapors, the body being in the form of a honeycomb body, is, with regard to the object of supplying a substantially closed chamber with filtered inlet air in trouble-free fashion, the inlet air being virtually completely freed from pollutants which are present in the form of aerosols, gases, liquid droplets or solid particles, and a filter element of simple construction being used, wherein the filter element is used for supplying filtered inlet air to an at least partially closed-off chamber, the inlet air being freed from pollutants which are present in the form of aerosols, gases, liquid droplets or solid particles. | 11-19-2015 |
20160001209 | FLUID FILTERING SYSTEM - A filter system may include a filter housing and a filter. The filter may include layers of impermeable material. Additionally, the filter may include at least one first layer of corrugated filter media situated between layers of the impermeable material. The at least one first layer may at least partially define a first plurality of flutes extending from a first side of the filter to a second side of the filter. The filter may also include at least one second layer of corrugated filter media situated between layers of the impermeable material. The at least one second layer may at least partially define a second plurality of flutes extending from a third side of the filter to a fourth side of the filter. The housing may be configured to direct a first fluid into the first side of the filter, and direct a second fluid into the third side of the filter. | 01-07-2016 |
095287000 | In series | 23 |
20080307971 | Filter Medium, Process for Producing the Same, Method of Use Thereof, and Filter Unit - The present invention provides a filter medium reducing an increase in pressure drop while in use even in an environment where ultrafine particles form a large proportion of the particles to be collected. The filter medium includes a porous polytetrafluoroethylene (PTFE) membrane, an air-permeable supporting member and a web layer made of polymeric fibers formed by electrospinning (charge induction spinning, electrostatic spinning). The filter medium of the present invention may include an air-permeable adhesive layer adjacent to the web layer. | 12-18-2008 |
20090044702 | FILTER ELEMENT AND METHOD - A filter element having multiple formed layers of filtration media is disclosed. The media are layered so as to form a pore size gradient. The filter element is capable of removing both solid and liquid particulates from a moving fluid stream. The filter element has high strength and compressibility. The layers can be supported on a porous or perforate support to provide mechanical stability during filtering operations. The filtration media layers can be formed into various filter element forms such as panels, cartridges, inserts, and the like. | 02-19-2009 |
20090056548 | DUST COLLECTION DEVICE FOR SANDING TOOL - A dust collection device for a sanding tool comprising a bag having a sidewall and a coupler attached to the bag. The sidewall comprising a first filter layer, a second filter layer, and an outer support layer. The first filter layer comprising a plurality of fibrillated electrostatically charged electret fibers forming a nonwoven web; the first filter layer having a total pressure drop between about 0.1 to about 4.0 mm H | 03-05-2009 |
20090084264 | REMOVAL OF TOXIC AIRBORNE PARTICLES IN WAXING APPLICATIONS - Systems are described for use in removing toxic airborne contaminants from a waxing environment where wax is being applied to sporting equipment. The systems include a base, at least one platform coupled to the base and an airflow generator. The at least one platform is configured to securely receive sporting equipment to be waxed. Each platform includes a first surface that is in contact with the waxing environment, an opposing second surface and at least one opening that extends between the first and second surfaces of each platform. The airflow generator is configured to generate an airflow for pulling harmful airborne contaminants through the at least one opening in each platform in a direction from the first surface to the second surface. | 04-02-2009 |
20090173228 | SUBSTRATE HAVING CORRUGATED SHEET(S) AND CHANNEL(S) FOR TREATING EXHAUST GASES OF COMBUSTION ENGINES - A substrate has corrugated sheet(s) and channel(s) for treating exhaust gases of combustion engines. The present invention also relates to methods for manufacturing and using the substrate having the open channel(s). The substrate ( | 07-09-2009 |
20090282979 | LOW-PROFILE SURFACE MOUNT FILTER - Embodiments of the present invention provide low-profile surface mount filters. One embodiment of the present invention includes a filter housing adapted to mount on a substrate block having a plurality of flow paths and a filter cavity defined therein. The filter cavity is defined to extend in a generally horizontal direction when the low-profile filter is in use. A first flow passage is defined to connect an inlet of the filter housing to a first section of the filter cavity and a second flow passage is defined to connect a second section of the filter cavity to an outlet of the filter housing. A filter assembly is disposed in the filter cavity and sealed to the surface of the filter cavity separating the filter cavity into adjacent sections including the first section of the filter cavity and second section of the filter cavity. | 11-19-2009 |
20100050874 | Exhaust after treatment system and method - An exhaust after treatment system includes a wall-flow particulate filter and a flow-through substrate positioned upstream of the filter. The substrate has a plurality of channels defining a mean channel length, a first flow-through region including a first portion of the channels, and a second flow-through region including a second portion of the channels. The first flow-through region includes unplugged channels having lengths less than the mean channel length and the second flow-through region includes unplugged channels having lengths greater than the mean channel length. | 03-04-2010 |
20100126351 | METHOD FOR PRODUCING A MATERIAL FOR CHEMICAL VAPOR DEPOSITION - A material for chemical vapor deposition of the present invention contains a precursor composed of a metal compound, and has 100 or less particles having a size of 0.5 μm or more in 1 ml, in particle measurement by a light scattering type submerged particle detector in a liquid phase. A thin film can be prevented from being contaminated by particles even when a highly degradable metal compound is used as the precursor. | 05-27-2010 |
20100132558 | Exhaust Gas Purification System for an Internal Combustion Engine - An exhaust gas purification system for an internal combustion engine of a motor vehicle is provided. The system includes a first particulate filter element and a second particulate filter element, which is connected downstream of the first particulate filter element and through which flows the exhaust gas that emanates from the first particulate filter element. The first particulate filter element operates as a system filter and the second particulate filter element operates as a diagnostic filter. A charge of the diagnostic filter can be determined, and the functional capability of the system filter can be deduced based thereon. | 06-03-2010 |
20110214570 | AIR FILTRATION MEDIUM WITH IMPROVED DUST LOADING CAPACITY AND IMPROVED RESISTANCE TO HIGH HUMIDITY ENVIRONMENT - A method for filtering particles from water mist laden air involves passing the air through a medium that has a nanoweb layer in fluid contact with a hydrophobic nonwoven web. The hydrophobic web can be made of an intrinsically hydrophobic material, or can be coated with a hydrophobic coating. The medium does not undergo the large pressure drops normally associated with filtration of water mists and retains its efficiency well. | 09-08-2011 |
20120031272 | SYSTEMS AND METHODS OF DUST MITIGATION - There is provided an exemplary dust trap and a system and method for filtering air. An exemplary dust trap comprises a housing with an air intake. The exemplary dust trap also comprises a plurality of screens disposed within the housing downstream of the air intake and configured to pass air and capture airborne contaminants, wherein the screens are configured to provide an unscreened air passage between the screens. | 02-09-2012 |
20120103195 | MACHINE TOOL MOUNTED MIST COLLECTOR - One example embodiment includes a system for removing cooling liquid from a mist. The system includes an intake, where the intake is configured to receive the cooling mist. The system also includes a mist filter, where the mist filter is configured to remove cooling liquid from the mist. The system further includes an exhaust, where the exhaust is configured to output the demisted air. | 05-03-2012 |
20120160105 | STRUCTURAL REINFORCEMENTS FOR FILTER ASSEMBLIES - A filter assembly is described herein for controlling the air passing therethrough. The filter assembly can include a housing comprising a cavity formed therein. The filter assembly can also include a filter positioned within the cavity and coupled to the housing. Further, the filter assembly can include a reinforcement structure coupled to an end of the housing and adjacent to a top end of the filter | 06-28-2012 |
20120192718 | RECIRCULATING FILTRATION SYSTEMS FOR MATERIAL PROCESSING SYSTEMS AND ASSOCIATED METHODS OF USE AND MANUFACTURE - Embodiments of recirculating filtration and exhaust systems for material processing systems are disclosed herein. A material processing system configured in accordance with one embodiment includes an enclosure for processing a workpiece, the enclosure having an enclosure inlet and an enclosure outlet. The system also includes a first flow path fluidly coupled to the enclosure inlet and the enclosure outlet, and a first filtration assembly in the first flow path. The first filtration assembly draws airflow from the enclosure and returns the airflow to the enclosure. The system further includes a second flow path in fluid communication with the first flow path upstream from the enclosure inlet, and a second filtration assembly in the second flow path. The second filtration assembly draws airflow from the first flow path and returns airflow to the first flow path. | 08-02-2012 |
20130305926 | FILTER SYSTEMS WITH DIRTY AIR CHAMBER SPACER ELEMENTS AND METHODS OF USING THE SAME - Filter systems and methods described herein include one or more spacer elements positioned in the dirty air chamber along with the filter elements attached to the spacer elements. The dirty air inlet delivers a dirty air stream into the dirty air chamber along a dirty air flow axis. | 11-21-2013 |
20140090560 | APPARATUS AND METHODS FOR LARGE PARTICLE ASH SEPARATION FROM FLUE GAS USING SCREENS HAVING SEMI-ELLIPTICAL CYLINDER SURFACES - Apparatus for separating ash particles from a flue gas. The apparatus includes a screen that has a plurality of semi-elliptical cylinder surfaces. The semi-elliptical cylinder surfaces having holes through which said flue gas flows and through which the ash particles will not pass. The screen has a single layer for performing the separation in a manner such that the ash particles fall away from the screen and collect outside of the screen. A method of reducing velocity of a flue gas passing through screening apparatus for separating flue gas from ash particles. The method includes replacing a first screen of the screening apparatus with a second screen that has a plurality of semi-elliptical cylinder surfaces. | 04-03-2014 |
20140150655 | INTAKE SYSTEM INCLUDING REMOTELY LOCATED FILTER ASSEMBLIES AND METHOD FOR OPERATION OF AN INTAKE SYSTEM - An intake system for an engine including a first air filter assembly in fluidic communication with an intake manifold and a second air filter assembly spaced away from the first air filter assembly and in fluidic communication with the intake manifold. | 06-05-2014 |
20140216257 | AIR CONTAMINANT FILTRATION SYSTEM FOR A CABIN - An air contaminant filtration system ( | 08-07-2014 |
20140251143 | FILTRATION SYSTEM FOR A GAS TURBINE AIR INTAKE AND METHODS - A gas turbine air filter system includes a housing having an interior, an inlet arrangement, and an outlet hood having an outlet arrangement. The inlet arrangement defines an inlet flow face for taking in unfiltered air. The outlet arrangement defines an outlet flow face for exiting filtered air. The inlet flow face and the outlet flow face are angled relative to each other. The angle can range between 45-135° relative to each other. The system includes at least first and second stages of filter element arrangements held within the interior of the housing. The first and second stages of filter element arrangements are operably sealed within the housing such that air flowing through the inlet arrangement must pass through the first and second stages of filter element arrangements before exiting through the outlet arrangement. The outlet hood is free of the first and second stages of filter element arrangements. | 09-11-2014 |
20140260984 | DUST COLLECTOR WITH MONITOR AIR FILTER - A dust collector having a monitor air filter and method for filtering are provided. In one embodiment, a dust collector includes a housing having an inlet, an outlet, a main air filter access port sealable by a main air filter door, and a monitor air filter access port sealable by a monitor air filter door. A first tube sheet and a second tube sheet are disposed in the housing. The first tube sheet separates a dirty air plenum from a clean air plenum, and has at least one first filter aperture. The second tube sheet separates the clean air plenum from an exhaust air plenum, and has at least one second filter aperture. | 09-18-2014 |
20140290487 | DEVICE AND METHOD FOR FILTERING UNTREATED AIR, BEVERAGE BOTTLING AND/OR BEVERAGE CONTAINER PRODUCTION SYSTEM AND USE OF AT LEAST ONE PRESSURE DIFFERENTIAL VALUE MEASURED BY MEANS OF A PRESSURE AT ONE FILTER ELEMENT OF FILTER ELEMENTS THAT ARE CONNECTED IN SERIES - A device for filtering untreated air in an air supply of a clean room of a beverage treatment system, having more than one filter element and a pressure differential measuring assembly, in which the filter elements are connected to the pressure differential measuring assembly for pressure measurement such that a respective first pressure pick-up is arranged upstream of the respective filter element and a second pressure pick-up. | 10-02-2014 |
20150101486 | AIR FILTER COMPRISING A MICROPERFORATED FILM, AND METHOD OF USING - Filter media including a microperforated film with tapered microperforations, and a nonwoven web positioned upstream of the microperforated film. Framed air filters incorporating such filter media, and methods of using such filter media. | 04-16-2015 |
20150128803 | Assembly and Method for a Bag Filter - The present application provides a filtration unit for filtering a flow. The filtration unit may include one or more first layers and a second layer. The one or more first layers may include a prefilter layer and a wave layer. | 05-14-2015 |