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| Number | Title | Issue Date |
| 8177874 | Filter assembly A filter assembly for removing material entrained in a fluid stream, comprises a housing for a filter element, having a head part and a body part for receiving a filter element, and inlet and outlet ports for the fluid that is to be filtered. The head part and the b... | 05/15/2012 |
| 8163053 | Housing assembly with bagging ring Embodiments of the invention generally include a filter housing having a bagging ring coated to enhance a bag-to-bagging ring seal. In one embodiment, the housing assembly includes a housing having an inlet, an outlet and an access port. A bagging ring is disposed a... | 04/24/2012 |
| 8152885 | Air passage device having improved accessibility of the filter mat An air passage device, in particular a filter fan or outlet filter for installation in a mounting opening in a wall or in a housing of a switch cabinet, which is essentially formed by a ventilation grating and a main housing, and a filter mat is insertable between t... | 04/10/2012 |
| 8002867 | Housing assembly with bagging ring Embodiments of the invention generally include a filter housing having a bagging ring coated to enhance a bag-to-bagging ring seal. In one embodiment, the housing assembly includes a housing having an inlet, an outlet and an access port. A bagging ring is disposed a... | 08/23/2011 |
| 7364602 | Air cleaner assembly An air cleaner assembly for use with a conventional household air conditioning system with a duct having an opening sized to receive a standard panel filter comprises a peripheral frame sized to be received within the opening in the return duct and sized to receive ... | 04/29/2008 |
| 7323028 | Air intake filter screen assembly A filter screen assembly for use with an air intake structure, the structure including a face within which is formed an air intake opening. The filter screen assembly includes a screen having a flexible mesh material and an outer perimeter edge. The perimeter edge i... | 01/29/2008 |
| 7309369 | Filter module The invention relates to a filter module in the form of a hollow body with at least one chamber. The walls of the hollow body are made of a non-metallic material that can be comminuted and/or disintegrated in a recycling process. The material is a paper product, suc... | 12/18/2007 |
| 7291198 | Filter system; element configuration; and methods A filter element is includes a cylindrical media pack defining a central open volume and a longitudinal axis; a first end cap having a central aperture in flow communication with the central open volume; and a second, closed end cap having a central region closing a... | 11/06/2007 |
| 7235121 | Externally removable vacuum cleaner filter apparatus A method and structure for externally removing a filter apparatus from a vacuum cleaner. The vacuum cleaner comprises a vessel, a lid removably attached to the vessel, a port, a suction apparatus adapted to create a vacuum within the vessel and draw a substance thro... | 06/26/2007 |
| 7176771 | Circuit breaker filter assembly An improved filter assembly for a circuit breaker includes a generally rectilinear filter housing having at least two filter mounting zones for receiving at least two filter assemblies, so as to define, in the aggregate, a filter assembly, and at least two filter as... | 02/13/2007 |
| 7156892 | Filter protection device for preventing damage to an air filter A filter protection apparatus includes a frame of a closed curve defining an inner space isolated from surroundings, the frame having a shape of a filter securing part for securing an air filter, an attaching part for attaching the frame to a filter securing part, a... | 01/02/2007 |
| 7122067 | Intake air filter for an internal combustion engine An intake air filter (1) is for an internal combustion engine, especially in a motor vehicle. The filter has a filter housing (2) having a raw air inlet (4), a pure air outlet (5), and an annular filter element (3) which is arrange... | 10/17/2006 |
| 7115156 | Air filter system A filter system for filtering intake air for a combustion engine, in particular an air filter for a commercial vehicle, having a tubular housing, an inlet situated in the housing through which unfiltered air to be cleaned can be supplied, an outlet situated in the h... | 10/03/2006 |
| 7090711 | Multistage air cleaner including pulse cleaning system A V-pack filter includes a frame construction having a first frame structure and a second frame structure. The V-pack filter also includes first and second panel sections mounted in extension between the first and second frame structures. The first panel section has... | 08/15/2006 |
| 7090710 | Air intake duct for vehicle An air intake duct for a vehicle having a cuttable groove at an external wall of an air exhaust port can be applied to any vehicle regardless of whether an air filter is adopted, thus providing cost-effectiveness, preventing air leakage when the air filter is not us... | 08/15/2006 |
| 7052523 | Bagless canister vacuum cleaner A bagless canister vacuum cleaner includes a selectively removable dirt cup, and an airstream flows rotationally through the dirt cup between an interior wall of the dirt cup and a filter assembly selectively mounted in the dirt cup so that entrained contaminants ar... | 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 |
| 6974491 | Cartridge locking device and method A cartridge locking device (10) for holding a filter media (14) in a plenum (12) in which an actuator (112) movable between a first position and a second position connects to a lever member (122) inwardly of the plenum (12) ... | 12/13/2005 |
| 6949131 | Ventilator or ventilating apparatus with thermal exchanger and air filter A compact ventilator with high efficiency thermal exchanger and a conveniently exchangeable air filter. The conveniently exchangeable filter enables a ventilator with thermal exchanger to be easily and regularly maintained and serviced, thereby enhancing its practic... | 09/27/2005 |
| 6808547 | Air cleaner An air cleaner comprises a filter element, for filtrating air, including a frame structure, a case provided with an opening through which the filter element is inserted into the case and having an abutment surface to which the seal portion of the filter element cont... | 10/26/2004 |
| 6733574 | Filter apparatus A filter apparatus for use with a fluid bed processor includes a movable filter bundle that can be selectively moved within a fluid bed chamber. The movable filter bundle includes one or more filters attached to corresponding filter mounts on a support structure. Th... | 05/11/2004 |
| 6712868 | Bagless canister vacuum cleaner A bagless canister vacuum cleaner includes a selectively removable dirt cup, and an airstream flows rotationally through the dirt cup between an interior wall of the dirt cup and a filter assembly selectively mounted in the dirt cup so that entrained contaminants ar... | 03/30/2004 |
| 6648947 | Method and apparatus for replacing a filter The present invention provides a method and apparatus for replacing a filter. The apparatus includes a receptacle adapted to receive a filter that is capable of filtering a first area. The apparatus further includes at least one supporting member to suppo... | 11/18/2003 |
| 6508865 | Method and apparatus for compressing atmospheric air, and corresponding air distillation and gas turbine installations Atmospheric air passes through a droplet separator and then through one or more filtration stages. The first filtration stage is made of bag-filter elements with filter medium made up of synthetic fibres with a density which increases in the direction of ... | 01/21/2003 |
| 6419720 | Modular power coating booth A modular powder recovery apparatus includes a base unit, one or more cartridge filters, and a wrapper that at least partially encloses the cartridge filters. The wrapper is designed to allow additional wrappers to be vertically stacked thereon to increas... | 07/16/2002 |
| 6159259 | Filter for compressed air A filter device including a first filter having a first packing accommodated in a first sleeve thereof, and a second filter having a second packing accommodated in a second sleeve thereof, each one of the first and second packings cooperating with two ret... | 12/12/2000 |
| 6019822 | Apparatus for air dehumidification having a unitary casing for a cyclone separator, a primary filter, a secondary filter, and a separation membrane element An air dehumidifying apparatus having a cyclone separator, a primary filter, a secondary filter, and a separation membrane element made of a special high polymer for passing steam smoothly and hardly passing air. The elements of the apparatus are disposed... | 02/01/2000 |
| 5968215 | Combined inlet outlet air filter element An air filter element for internal combustion engines includes a filter media having an inlet portion and an outlet portion positioned adjacent to one another, so that a single filter element may be used with an air filter assembly; the filter element hav... | 10/19/1999 |
| 5931988 | Cabinet filter assembly and methods A filter assembly includes a filter cabinet defining an interior. A filter component is suspended within the filter cabinet interior. The filter component includes an outer frame having first and second rigid frame sections. The first and second rigid fra... | 08/03/1999 |
| 5888259 | Filter device for compressed air A filter device for compressed air in which the filter packings can be easily and quickly replaced. A first packing is accommodated in a first sleeve, a second packing is accommodated in a second sleeve, and an inlet passage portion defines an inlet passa... | 03/30/1999 |
| 5776211 | Jacktop cleaner A vacuum waste removal system including a waste receiving container including a tank having an intake conduit, a dome carrying an air knife and having an outlet conduit and a filter screen removably located between an upper end of the tank and a lower end... | 07/07/1998 |
| 5683495 | Device for the filtration of a flow of air, in particular for the heating and/or air conditioning plant in a motor vehicle A device for the filtration of an airstream, in particular for a heating and/or air conditioning installation in a motor vehicle. The device provides, on one hand, a filtration that includes as much as possible of the entire airstream, while, on the other... | 11/04/1997 |
| 5669947 | Latch for modular air handling system A substantially sealed modular air handling system that has a plurality of modules enclosing a plurality of air handling units. Each of the modules has generally parallelpiped shaped cabinetry having two opposed sides and opposed front and rear faces. The... | 09/23/1997 |
| 5599364 | Filter locking/support system for dust collectors A filter locking/support system for releasably urging and maintaining a plurality of separate depending filter elements in a dust collector into and in sealing engagement with the partition between the "dirty" and "clean" sections of said dust collector, ... | 02/04/1997 |
| 5597393 | Displaceable filtering apparatus for airborne contaminates An apparatus for filtering airborne contaminates that has a frame member and a collection duct attached thereto. A discharge duct assembly is pivotally connected to the frame member and is pivotable between a first position wherein it can be removably con... | 01/28/1997 |
| 5167683 | Intake air filter for the internal combustion engine of a motor vehicle An air intake filter for the internal combustion engine of a motor vehicle in which a substantially cylindrical housing contains an annular filter insert through which the air flows radially from the outside to the inside. At one end of the housing an end... | 12/01/1992 |
| 5141541 | Jack top receiver for a vacuum waste removal system A vacuum cleaning arrangement having a collecting tank in which a jack system is arranged about its periphery which is operative to lift and separate an upper portion of the tank from a lower portion of the tank and also to move the upper and lower portio... | 08/25/1992 |
| 5108381 | Tissue sample collection trap A tissue sample collection trap for trapping tissue samples for use with a suction sample collecting device comprising a cylindrical container either translucent or opaque with a suction connector element with a port provided at one end to connect to and ... | 04/28/1992 |
| 5100444 | Hollow body, in particular a pipe segment or a cylindrical body The invention relates to a hollow body, in particular a pipe segment or a cylindrical body which contains gases or fluids or through which these can flow and comprises at least one opening in its wall surrounding the hollow space of the hollow body, the o... | 03/31/1992 |
| 5047348 | Apparatus for housing radioactive items during incubation An apparatus for housing radiation-emitting items to be incubated, such as radio-labeled cell cultures, in order to prevent contamination of the interior of an incubator and the surrounding environment. The apparatus is nonporous and preferably relatively... | 09/10/1991 |
