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| Number | Title | Issue Date |
| 8142554 | Method for cleaning the filters of a vacuum cleaner and vacuum cleaner for carrying out the method The invention relates to a method for cleaning filters of a vacuum cleaner having a dirt collecting container, which has a suction inlet and is in flow connection with at least one suction unit via at least one filter and at least one suction extraction line, and at... | 03/27/2012 |
| 8114196 | Gas turbine inlet filter house cleaning apparatus and method A pulse cleaning system for one or more hollow filter elements having an inlet and an outlet includes an air supply manifold adapted to extend across the outlet of the filter element, a conduit extending substantially perpendicular to the manifold and adapted to ext... | 02/14/2012 |
| 8075674 | Filter apparatus with pulse cleaning and methods for pulse cleaning filters A method of pulse cleaning filter media in panel, cylindrical, conical, or V-pack style filter in an opening of a tubesheet is provided. The method includes directing a fluid pulse at the filter media at an angle that is: (i) not normal to a plane of the opening of ... | 12/13/2011 |
| 8070857 | Particulate removal tool A particulate removal tool and method are provided to remove the particulates such as ash and soot from a particulate filter. The particulate filter can be placed on a filter holder in a housing of the tool where a quick burst of air can be provided to clean the par... | 12/06/2011 |
| 8057582 | System configuration of pulsed cleaned panel-style filter elements and methods An air cleaner is provided including a housing having a dirty air inlet, a clean air outlet, and an interior. A tubesheet is in the housing interior and has a plurality of openings. The tubesheet is oriented in one of either a generally horizontal or a generally ver... | 11/15/2011 |
| 8029607 | Cleaning pressure reduction through blowpipes A system for cleaning at least one filter in a baghouse and an associated method for providing the system. The at least one filter separate a dirty gas chamber from a clean gas chamber, and filters at least one substance from a gas. The system includes a supply of c... | 10/04/2011 |
| 7967898 | Z-filter media with reverse-flow cleaning systems and methods A method for cleaning a filter having Z-media includes providing a filter having Z-media and cleaning the media construction by directing a pulse of compressed gas into the media construction through the downstream flow face. Filter elements useable with such method... | 06/28/2011 |
| 7909916 | Maintenance method for particulate filter Provided is a method for performing maintenance of a particulate which can reliably remove combustion residue by means of backwash air without use of hot water and the like while cutting equipment expenses, so that substantial increase in exhaust pressure and deteri... | 03/22/2011 |
| 7582141 | Diesel particulate filter pulse cleaner flow director system and method A cone (36) and a ring (38) are accessories separately used during respective phases of cleaning a diesel particulate filter (10, 10′) in a cleaning machine that uses compressed air pulses to clean the substrate (12) where particulate m... | 09/01/2009 |
| 7517393 | Jet pulse chamber venturi dust collector A jet pulse chamber venturi collector wherein a venturi is provided between the upper end portions of adjacent columns of filter stacks mounted in a dust collector housing wherein particulate laden gases flow downwardly through the venturi and are accelerated to suc... | 04/14/2009 |
| 7438735 | Filter apparatus with automatic cleaning A filter apparatus includes a gas-impermeable outer conduit having an open end and a closed end. The interior of the outer conduit is axially divided into first and second sides. A first clean and first dirty flow path are defined within the first side. A first gas-... | 10/21/2008 |
| 7422626 | Method and device for declogging filter A method of declogging at least one filter of a plant for manufacturing uranium oxide from uranium hexafluoride, including separating, from the wall of the filter, uranium oxyfluoride particles deposited, by a stream of inert gas such as nitrogen, injected into the ... | 09/09/2008 |
| 7410530 | Apparatus for cleaning exhaust aftertreatment devices and methods The present disclosure relates to a pulse cleaner for cleaning a diesel exhaust treatment device. The pulse cleaner includes a cabinet, a diesel exhaust treatment device mount positioned within the cabinet for mounting the diesel exhaust treatment device during puls... | 08/12/2008 |
| 7410521 | Filter service system and method A system for removing matter from a filtering device includes a flow receiving device having a plurality of blocking portions. Each of the plurality of blocking portions is configured to substantially block a flow directed by a corresponding at least one of a plural... | 08/12/2008 |
| 7393387 | Particle filter cleaning apparatus The invention is an apparatus for cleaning one or more cylindrical filters. An enclosure contains the entire apparatus in which each filter is supported on its own pair of rotating horizontal rollers. An assembly of air nozzles adjacent to a first end of each rotati... | 07/01/2008 |
| 7384455 | Filter service system and method According to an exemplary embodiment of the present disclosure, a method of detecting matter within a filtering device includes measuring a metric indicative of a first quantity of matter within the filtering device and removing a portion of the matter from the filt... | 06/10/2008 |
| 7371342 | Method for unlocking nozzles of reactors Method intended to unblock enriched air blow or reaction gases nozzles in reactors or fusion converters for mining industry pyrometallurgy CHARACTERIZED by the injection of discrete air impacts with time intervals regulated to high pressure and rate through the enri... | 05/13/2008 |
| 7357829 | Diesel particulate filter cleaning device and method Multiple storage tanks and multiple valves that open simultaneously allow gas charges stored at superatmospheric pressure in the tanks to simultaneously discharge and form a single substantial percussion pulse that dislodges particulate matter from a diesel particul... | 04/15/2008 |
| 7354469 | Vacuum conveyor device with a multi-stage filter system A Vacuum conveyor device (10) with a multi-stage filter system, has at least one inner filter (10A), one outer filter (10B), and one filter adapter (20) especially for air-tight and/or fluid-tight insertion of at least one of the filters,... | 04/08/2008 |
| 7354466 | Collector and separator apparatus for lawn and garden An apparatus for collection and reduction of twig-containing yard debris combining a frontally facing twig breaker with a chipper-shredder-blower unit to induce airflow for entraining debris collected at the vacuum pick up; reduce the entrained debris to a more mana... | 04/08/2008 |
| 7338544 | Z-filter media with reverse-flow cleaning systems and methods A method for cleaning a filter having Z-media includes providing a filter having Z-media and cleaning the media construction by directing a pulse of compressed gas into the media construction through the downstream flow face. Filter elements useable with such method... | 03/04/2008 |
| 7309366 | Bag cleaning compressed air nozzle A process and apparatus for cleaning filter cake from the interior of a baghouse bag. A nozzle through which compressed gas flows is positioned on the interior of a bag such that gas is directed to, and thereby disrupts, the filter cake. The compressed gas flows in ... | 12/18/2007 |
| 7300481 | Method and device for cleaning filters for dust-laden waste gases The invention relates to a method for cleaning filters for dust-laden waste gases, including several filter elements (2) which are arranged vertically in a filter housing (1) and which have an upper open end (16) and a lower closed end (15 | 11/27/2007 |
| 7282075 | Z-filter media with reverse-flow cleaning systems and methods A method for cleaning a filter having Z-media includes providing a filter having Z-media and cleaning the media construction by directing a pulse of compressed gas into the media construction through the downstream flow face. Filter elements useable with such method... | 10/16/2007 |
| 7234818 | Dust detection device for air filter and projector utilizing the same A projector and a dust detection device for an air filter thereof. The projector comprises a lamp, a fan, an filter, and a dust detection device. The lamp comprises a housing with an inlet and an exit. The fan is disposed in front of the inlet of the housing, and ge... | 06/26/2007 |
| 7217307 | Dust collector with an invertible wind exhausting case A dust collector with an invertible wind exhausting case includes a wind exhausting case having an upper and lower cover, which is respectively provided with two threaded holes of the same size in two lateral sidewalls. Two bolts combine tightly the lower cover with... | 05/15/2007 |
| 7195659 | Reverse-flow cleaning systems and methods A device and method for cleaning a filter element. The device including a valve interconnected to a blowpipe. A nozzle is positioned at an end of the blowpipe and to direct a pulse of compressed gas into the filter element. The nozzle includes a body and a diffuser ... | 03/27/2007 |
| 7182799 | Filter assembly comprising filter elements and a filter grid A filter assembly having a plurality, preferably at least substantially vertically mounted, longitudinal elongated filter elements that are suitable for separating fluid from solid particles, having an open upper end sealed into a sealing device and a closed bottom ... | 02/27/2007 |
| 7159393 | Device for exhaust gas purification A device for purifying exhaust gases from a combustion engine (1) is provided with a first filter (10) arranged in an exhaust conduit (7) between the engine (1) and an exhaust outlet (8) for removing particular constituents from th... | 01/09/2007 |
| 7146681 | Upright vacuum cleaner with cyclonic airflow A vacuum cleaner includes a first housing defining a cyclonic airflow chamber and a second housing defining a main suction opening that is in communication with an inlet of the cyclonic chamber. A suction source has a suction airstream inlet in communication with an... | 12/12/2006 |
| 7114842 | Controlling ready mixed concrete sludge water Method and system for concrete wash-out water re-use, wherein an apparatus such as a mixing truck (1) is washed out and sludge (2) water re-used. The invention comprises providing sensors (11), in a communication system connected with a control ... | 10/03/2006 |
| 7097694 | High performance, high efficiency filter A high performance, high efficiency filter is provided by a multi-stage filter having combinations of tribologically different fibers, nanofibers, and layering. ... | 08/29/2006 |
| 7094265 | Cleaning device for a bundle of tubular filter elements designed with one end open, preferably of an industrial dust filter A cleaning device for a bundle of tubular filter elements designed with one end open, preferably of an industrial dust filter, is proposed. Injectors for delivery of a pulse-like compressed-air jet into the filter elements are arranged above the openings of the filt... | 08/22/2006 |
| 7082640 | Ambient air backflushed filter vacuum A vacuum cleaning machine has a cannister with an inlet port and at least two outlet ports. At least two filters are disposed inside of the cannister, one in pneumatic communication through each of the outlet ports. At least two valves are disposed outside of the ca... | 08/01/2006 |
| 7056372 | Air treatment device having various selections An air treatment device includes a housing, a filter element disposed in the housing, an air forcing device for forcing air to flow through the filter element, and a light device disposed in front of the filter element for generating light and for germ killing purpo... | 06/06/2006 |
| 7008465 | Cleanable high efficiency filter media structure and applications for use An improved cartridge, typically in cylindrical or panel form that can be used in a dry or wet/dry vacuum cleaner. The cartridge is cleanable using a stream of service water, or by rapping on a solid object, or by using a compressed gas stream, but can provide excep... | 03/07/2006 |
| 6966935 | Filter cleaner for wet/dry vacuum A filter cleaner for wet/dry vacuum is provided for effectively cleaning filter cartridges employed for use in a class of vacuum cleaners commonly referred to as “wet/dry vacs.” The filter cleaner apparatus includes a cylindrical catch tank supported by a base. ... | 11/22/2005 |
| 6962169 | Device for generating a pulsating stream of fluid In order to provide a device for producing a pulsating fluid stream, which is of simple construction and is easily producible and which enables a pulsating fluid stream to be produced at a comparatively high frequency, there is proposed a device for producing a puls... | 11/08/2005 |
| 6960241 | Paper trap A paper trap includes a trap chamber. An outlet of the trap chamber is preferably connected to an inlet of the exhaust bypass damper. An inlet of the trap chamber is coupled to dust capture hoods and an outlet of the bypass chamber is coupled to a dust collector. A ... | 11/01/2005 |
| 6949130 | Dust and dirt separation assembly A dust and dirt separation assembly for use in a vacuum cleaner having a housing having a dirt collection chamber, a dirty air inlet, a clean air outlet, and an airflow path existing therebetween, a first separation means for separating articles of dirt from dirty a... | 09/27/2005 |
