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| Number | Title | Issue Date |
| 7918907 | Cleaning nozzle for dust collector A particulate filtration device having a cleaning assembly including the cleaning nozzle that accelerates gas toward the downstream surface of the filter media. The cleaning nozzle comprises an inlet portion defining a converging inlet path, a throat portion definin... | 04/05/2011 |
| 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 |
| 7323668 | Workpiece carrier for the inductive heating of workpieces, process for producing a ceramic material for the workpiece carrier and process for the inductive heating or hardening of workpieces A workpiece carrier for the inductive heating of workpieces contains ceramic materials at least at bearing surfaces which come into contact with the workpieces. The ceramic materials are distinguished by a high dimensional stability, low thermal and electrical condu... | 01/29/2008 |
| 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 |
| 7282074 | Auxiliary dust collection system An auxiliary dust collection system can be interposed between a sander or other dust producing tool and a vacuum source, e.g., shop vacuum. This auxiliary system has a cyclonic separator connected by a flexible hose to the tool and by another hose to the vacuum sour... | 10/16/2007 |
| 7279137 | Burners and combustion apparatus for carbon nanomaterial production The invention provides improved burners, combustion apparatus, and methods for carbon nanomaterial production. The burners of the invention provide sooting flames of fuel and oxidizing gases. The condensable products of combustion produced by the burners of this inv... | 10/09/2007 |
| 7186281 | Dust-removing device for the dust-collecting tank of a dust-collecting machine A dust-removing device for the dust-collecting tank of a dust-collecting machine includes a guide frame installed inside the dust collecting tank and having a central guide rod for a brush base to move up and down thereon. The brush base has its outer circumferentia... | 03/06/2007 |
| 7174707 | Regeneration of a filter by the use of a tone generator Method and arrangement for a combustion engine having an exhaust pipe, and a particle filter located in the exhaust pipe including a membrane which is permeable to gas components generated by a combustion process in the combustion engine but impermeable to soot and ... | 02/13/2007 |
| 7156332 | Product containment apparatus Self contained filter backpurge systems useful for totally enclosed processing mills and for clean in place (CIP) processing material processing mills. ... | 01/02/2007 |
| 7150863 | Polynuclear aromatic hydrocarbons for fullerene synthesis in flames This invention provides improved methods for combustion synthesis of carbon nanomaterials, including fullerenes, employing multiple-ring aromatic hydrocarbon fuels selected for high carbon conversion to extractable fullerenes. The multiple-ring aromatic hydrocarbon ... | 12/19/2006 |
| 7131165 | 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... | 11/07/2006 |
| 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 |
| 7047664 | Air blower to remove lint from dryer ducting A system and method for blowing lint from clothing dryer exhaust ducting. The system includes a high capacity electric blower, an adapter to connect the blower to a dryer exhaust hook-up, and a lint catcher to capture lint blown from the ducting. The lint catcher ma... | 05/23/2006 |
| 6902592 | Apparatus and method for cleaning an air filter unit Shown is an apparatus and method for cleaning filter units of an air filtering system using a reverse flow pulse of pressurized air. The filter cleaning system includes a venturi element (36) with a narrowed throat portion (56). A blowpipe (46) ... | 06/07/2005 |
| 6890365 | Reverse-flow baghouse An apparatus and method for removing particulate from a particulate-laden gas stream are disclosed. The apparatus and method include a reverse-flow process for cleaning filter bags with a cleaning gas stream. The process includes: flowing a particulate-laden gas str... | 05/10/2005 |
| 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 |
| 6605131 | Integrated active noise control with self-cleaning filter apparatus An air induction system with active noise control includes a self-cleaning air filter that is integrated within an air intake housing. The self-cleaning air filter filters out contaminants such as dust and dirt particulates from air flowing through the in... | 08/12/2003 |
| 6569218 | Self spin-cleaning canister vacuum A method of using vacuum-cleaner filters includes mounting a cylindrical-shaped filter cartridge coaxially on a rotatable spindle. Then air is drawn radially through a filter material wall of the filter cartridge. Periodically, the cartridge filter on the... | 05/27/2003 |
| 6428588 | Filter cleaning apparatus The present invention is concerned with the cleaning of fouled air filters to alleviate the problems caused by disposal of such filters as waste and to reduce the cost of maintenance of the many apparatus requiring air filters. The present invention provi... | 08/06/2002 |
| 6171366 | Control systems for operating gas cleaning devices Systems and methods for cleaning and operating gas cleaning devices using vibration generators wherein the systems include sensors and programs for monitoring and predicting resonant conditions of different surface areas and zones in order to vary the fre... | 01/09/2001 |
| 5958093 | Self-cleaning filter for pneumatic circuits A self-cleaning filter for pneumatic circuits includes a filtering baffle (1) mounted on a drum (2) rotated steadily, the flow (A) of the air to be filtered being from outside to inside the baffle (1), as well as a suction mouth (5) longitudinally positio... | 09/28/1999 |
| 5942016 | Moving cleaner The invention relates to a travelling cleaner (1) for textile machines, in particular spinning and weaving machines, which has a blowing and sucking device (3) and also a filter device (4). The filter device (4) has a tubular filter cartridge with at leas... | 08/24/1999 |
| 5741351 | Apparatus and method for cleaning an air filter of a vehicle An apparatus for cleaning a filter includes a support frame and a turn table for supporting the filter, wherein the turntable rotates in relation to the support frame during a filter cleaning operation. The apparatus also includes an air flow director for... | 04/21/1998 |
| 5681363 | Vacuum cleaner filter shaker A filter shaking arrangement includes a resilient frame disposed around an expandable filter, both of which are expanded by a fan induced air flow. The resilient frame returns resiliently to its original form upon the cessation of this air flow. This cont... | 10/28/1997 |
| 5667682 | Self-cleaning filtration apparatus An apparatus and method for filtering a fluid containing contaminants is provided whereby the apparatus includes an inlet for drawing fluid from a fluid source, a housing having attached thereto the inlet, a contaminant outlet, a clean outlet, a filtering... | 09/16/1997 |
| 5584900 | Apparatus for cleaning cylindrical air filters An apparatus for cleaning a generally cylindrical air filter. The apparatus includes a carriage for receiving the air filter in a generally axially vertical orientation. The carriage is selectively turned to orient the filter generally horizontally. Dirt ... | 12/17/1996 |
| 5322534 | Self-cleaning upside-down air filter A self-cleaning air filter is formed by placing a flexible filter bag in an upside-down position with its open end firmly supported. Air to be cleaned is pulled upwardly through the bag. When the air stream is shut off, the bag collapses, discharging accu... | 06/21/1994 |
| 5199965 | Bag filter A device for cleaning a bag filter, closed on one side, is arranged on a supporting grid within a housing traversed by the fluid to be cleaned and is provided on the clean-gas side with an injector which is directed into the inside of the fabric filter an... | 04/06/1993 |
| 5163786 | Cyclone separator with filter assembly for pneumatic conveyor A cyclone separator (20) for a pneumatic grain conveyor (10) includes a filter assembly (60) mounted in the upper end thereof. The filter assembly (60) includes a cylindrical casing (62) extending into the separator (20) with a screen (70) therein and an ... | 11/17/1992 |
| 5104429 | Self-cleaning gas filtration apparatus and methods A self-cleaning filtration system for removing particulate matter from a particulate laden gas flow includes a housing having an upper end opening for receiving the gas flow, a lower end opening communicating with the interior of a large particulate recei... | 04/14/1992 |
| 5006135 | Self cleaning screen A self cleaning screen particularly for an engine cooling system comprises a housing having a screen front wall and a rear wall in which there is provided a circular opening. The housing is divided by divider plates connecting between the front and rear w... | 04/09/1991 |
| 5003661 | Forced air apparatus for directing filtered air against a surface An apparatus for selectively directing air against surfaces adjacent textile machines to dislodge dust, lint and other textile by-products from such surfaces. The apparatus includes a blower, a support for supporting the blower in a fixed relation to the ... | 04/02/1991 |
| 4915835 | Flushable fiber-filter element for filtering a fluid There is provided a filter element for filtering fluids. The element consists of a body member having at least two openings provided, respectively, access and egress for the fluid and a plurality of fibers of a substantially uniform orientation over at le... | 04/10/1990 |
| 4842624 | Apparatus for cleaning air filters An apparatus for cleaning air filters by a combination of vibration, air pressure, and suction. A support member includes a first inclined wall sloped more steeply than a second inclined wall, providing generally V-shaped supporting surfaces which cause t... | 06/27/1989 |
| 4804481 | Helical spring apparatus and process for detaching filter cake In the filter according to the invention (precoated filter), gap-type filter elements (11) designed in the manner of filter cartridges and consisting of a profile wire wound into a helical spring are used. In order to detach the adhering filter cake, the ... | 02/14/1989 |
| 4764348 | Emission control apparatus An apparatus for removing acid gas and fly ash from hot flue gas includes a housing containing a perforated plate extending thereacross for holding a cool bed of particulate scrubbing material. First means are provided for passing the hot flue gas through... | 08/16/1988 |
| 4726820 | Process for cleaning the dust filter of a silo Filter hoses in a dust filter of a silo are cleaned by blowing air into the hoses in a shocklike manner when there is a predetermined overpressure in the silo. At least one additional cleaning cycle occurs after the overpressure drops.... | 02/23/1988 |
| 4684378 | Method and apparatus for removing paint overspray A method and apparatus are disclosed for removing paint overspray suspended in air exhausted from a paint spray booth, in which the exhausted air is drawn through a conveyor-carried bed of small diameter beads or granules of plastic or other material allo... | 08/04/1987 |
| 4681604 | Multistage fluid filter and method A fluid filter (10) comprises a plurality of separate filtration chamber (14-18) with a fluid inlet (12) and a fluid outlet (13). All of the filtration chambers (14-18) are identical and each contain two vertically-spaced doors (28, 29) on one end and two... | 07/21/1987 |
| 4675032 | Vacuum cleaner bag with oscillating tube A bag is shown for use with an upright vacuum cleaner of the type having a motor fan contained in a main housing for producing an air flow out an air duct of the housing. The bag includes a flexible body having side walls formed of an air pervious materia... | 06/23/1987 |
