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| Number | Title | Issue Date |
| 8157897 | Filter purge system utilizing impact wave generating device and vacuum source A system for removing matter from a filtering device is disclosed. The system may have an impact wave generating device. The system may further have a vacuum source to draw matter away from the filtering device. ... | 04/17/2012 |
| 8142553 | Air cleaner scavenge kit The present disclosure provides a method and apparatus for removing debris from an air cleaner of an internal combustion engine. The method includes receiving a flow of air from a source of air flow associated with an internal combustion engine at a first end portio... | 03/27/2012 |
| 8048207 | Method for delivering a fluid to a diesel particulate filter A conduit may be used to deliver a pressurized fluid to a cell of a diesel particulate filter to clean the cell. The pressurized fluid may remove particulate matter from the cell. The conduit may be moved within the cell to dislodge particulate matter within the cel... | 11/01/2011 |
| 8021467 | Cleaning process for cleaning filtration material of a gas filter and a device for carrying out the process A cleaning process for filtration material of a gas filter is disclosed. A first step hinders the gas flow from passing through the filtration material by closing the clean gas side of a single segment or a row of filter segments. A second step provides a slow gas f... | 09/20/2011 |
| 8002879 | Uses of auxetic fibres There is disclosed a method of controlling pore size in a porous material comprising the steps of: providing a porous material comprising a plurality of interconnected auxetic fibres; and applying a tensile or compressive load to the porous material so as to vary th... | 08/23/2011 |
| 7976614 | 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 the filters of a vacuum cleaner. A dirt collecting container of the vacuum cleaner 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... | 07/12/2011 |
| 7462222 | Filter service system According to an exemplary embodiment of the present disclosure, a system for removing matter from a filtering device includes a gas pressurization assembly. An element of the assembly is removably attachable to a first orifice of the filtering device. The system als... | 12/09/2008 |
| 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 |
| 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 |
| 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 |
| 7410529 | Filter service system and method According to an exemplary embodiment of the present disclosure, a system for removing matter from a filtering device of a work machine includes a gas pressurization assembly. An element of the gas pressurization assembly is removably attachable to a first orifice of... | 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 |
| 7371266 | Apparatus for cleaning a diesel particulate filter with multiple filtration stages The present invention is directed to a filter cleaning device, in particular, diesel particulate filters. In one embodiment, the device includes a source of high pressure fluid and a mechanism transport the fluid to a nozzle or nozzles; an actuator for moving the no... | 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 |
| 7351273 | Apparatus and method for separating dust constituents out of an explosive dust-air mixture A method and an apparatus (10) for separating dust constituents out of an explosive dust-air mixture which is passed through a filter housing (26) with filter elements having filter surfaces use a dust container (64), which can be connected in a... | 04/01/2008 |
| 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 |
| 7326265 | Method for cleaning the upstream surface of a particulate filter The invention concerns a method for cleaning the upstream surface (14) of a particulate filter (10) of a heat engine exhaust line, the filter (20) being arranged in a casing (12) having an outlet (22) for exhaust gases. The method ... | 02/05/2008 |
| 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 |
| 7303605 | Snap together filter A fluid filter is provided with a snap-together housing for the filter media. The housing is designed with two main parts that are easily snapped together to encapsulate the filter media. The filter housing is substantially cylindrical, and contains an inlet on one ... | 12/04/2007 |
| 7296402 | Diesel particulate filter service method A diesel particulate filter of a motor vehicle is cleaned of ash, typically using equipment already available in a service shop. The filter apparatus is disconnected from the exhaust system of a motor vehicle. The filter apparatus is reversed and reconnected to the ... | 11/20/2007 |
| 7285247 | Apparatus and method for operating a fuel reformer so as to purge soot therefrom A method of operating a fuel reformer includes advancing a first air/fuel mixture having a first air-to-fuel ratio into the fuel reformer. The method further includes determining if a soot purge is to be performed and generating a purge-soot signal in response there... | 10/23/2007 |
| 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 |
| 7273514 | Apparatus and method for filtering particulate and NOx emissions An apparatus and method for filtering particulate from an internal combustion engine by use of monolithic particulate trap systems having porous walls (2c, 24c). The porous walls (2c, 24c) filter the particulat... | 09/25/2007 |
| 7264652 | Filter for collecting chlorinated organic compound The collecting filter can capture and collect various chlorinated organic compounds in both particulate form and gaseous form contained in a fluid at the same time, and is easy to extract the collected chlorinated organic compounds therefrom. This collecting filter ... | 09/04/2007 |
| 7244281 | Method and apparatus for trapping and purging soot from a fuel reformer A plasma fuel reformer assembly for producing reformate gas includes a fuel reformer having an air/fuel input assembly, an electrode assembly, and a soot trap positioned downstream of the electrode assembly. The electrode assembly includes a first electrode and a se... | 07/17/2007 |
| 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 |
| 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 |
| 7161315 | Self dust-off apparatus and method thereof A self dust-off apparatus includes a fan and a controller. The fan, which can be driven to rotate clockwise or counterclockwise, is installed in a projector. The controller is employed to direct the rotational direction (clockwise or counterclockwise) of the fan. In... | 01/09/2007 |
| 7160355 | Method and system for regenerating diesel particle filters A method of regenerating at least one diesel particle filter, in which exhaust gas is introduced through a supply line into the at least one diesel particle filter and is discharged from it through a discharge line, while heating of the exhaust gas flowing through t... | 01/09/2007 |
| 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 |
| 7150146 | Method of operating an exhaust gas treatment system for an internal combustion engine An exhaust gas treatment system for an internal combustion engine, particularly a diesel internal combustion engine having a catalyst arrangement and also at least one evaporator/burner arrangement upstream of the catalyst arrangement in the exhaust gas flow path, t... | 12/19/2006 |
| 7147683 | Back-flow valve and trigger for a cleaning machine A valve and trigger cyclically connect a vacuum and a blower to a filter. The valve box has three openings, the first connectable to the vacuum, the second connectable to the blower and the third connectable to the filter. A gate inside the box, biased by the blower... | 12/12/2006 |
| 7132017 | Low-pressure cleaning system using high velocity high volume air A method for cleaning a heat exchanging coil in an air conditioning unit using a low-pressure cleaning system to remove foreign particles that have accumulated on the heat exchanging coil. The low-pressure cleaning system discharges air at a low pressure, high veloc... | 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 |
| 7025811 | Apparatus for cleaning a diesel particulate filter with multiple filtration stages The present invention is directed to a filter cleaning device, in particular, diesel particulate filters. In one embodiment, the device comprises a source of high pressure fluid and means to transport the fluid to a nozzle or nozzles; an actuator for moving the nozz... | 04/11/2006 |
| 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 |
| 6955700 | Snap together filter A fluid filter is provided with a snap-together housing for the filter media. The housing is designed with two main parts that are easily snapped together to encapsulate the filter media. The filter housing is substantially cylindrical, and contains an inlet on one ... | 10/18/2005 |
| 6942717 | Venturi effect material return system of a material collection system and appertaining method A material return system of a material collection system and appertaining method permits fine material collected in a fine material collector to be returned to a main debris tank by taking advantage of the venturi effect, thus permitting a relatively trouble-free op... | 09/13/2005 |
