Class / Patent application number | Description | Number of patent applications / Date published |
055301000 | Cohesive filter media cleaning | 40 |
20100319307 | DUST COLLECTING APPARATUS OF VACUUM CLEANER HAVING FUNCTION OF REMOVING DUST DETACHED FROM FILTER - A dust collecting apparatus for a vacuum cleaner is provided. The dust collecting apparatus includes a centrifugal separating portion, a dust receptacle to collect dust which is separated by the centrifugal separating portion and a filter portion having a filter unit separating dust from an air current discharged from the centrifugal separating portion. The filtering portion further includes a dust removing unit to detach the filter dust caught in the filter unit, and a dust discharge member to move the filter dust to an upstream of the centrifugal separating portion. | 12-23-2010 |
20110296805 | ELECTRONIC DEVICE AND FILTER UNIT - A cleaner, which automatically cleans an air filter, is coupled to an outer (upstream) side of a partition including an intake port. The air filter is coupled to the intake port through which air is drawn. The partition includes an opening used to electrically connect the cleaner to an inner (downstream) side. A substrate is coupled to the opening | 12-08-2011 |
20120090284 | Vacuum Loader - A vacuum loader system is disclosed. In the vacuum loader system, the air inlet comprises a load-bearing member of a support structure that supports the system. The vacuum loader system also includes a filter chamber with co-located primary and secondary or safety filter elements. A safety filter element is at the center of the filter chamber, surrounded by primary filter elements. After the air flows through the primary and safety filter elements, it is directed downwardly, out of the filter chamber and back toward the blower, beyond which it is ultimately expelled through a silenced outlet. In some embodiments, the conduit that carries air from the filter chamber toward the blower may also be a member of the support structure. | 04-19-2012 |
20130305667 | AIR FILTER ASSEMBLY HAVING VENTURI ELEMENTS WITH EXTENDED PULSE OUTLETS - Air filtering assemblies described herein include one or more venturi elements that include extended pulse outlets. The pulse outlets may, in one or more embodiments, include two regions between the throat of the venturi element and the distal end of the pulse outlet that diverge at different rates. In one or more embodiments, the venturi elements may include openings at the distal ends of their pulse outlets that have non-circular cross-sectional shapes. In one or more embodiments, the non-circular cross-sectional shapes of the openings at the distal ends of the pulse outlets of the venturi elements may be selected to match non-circular openings in the filter elements attached to the pulse outlets of the venturi elements. | 11-21-2013 |
20140373489 | Modular Pulse Jet Fabric Filter - A modular design for large pulse jet fabric filters (PJFF) is divided into similar compartments, which are each “shop-fabricated” in quarter sections prior to delivery to the power plant site. The quarter sections of the compartments are modular and sized so that they can be fabricated at a shop located away from the power plant site and transported by truck over public roads to the power plant site. Once delivered to the site, the quarter sections are bolted together and seal welded to form a PJFF compartment, without requiring additional internal fabrication or welding. The assembled compartment is then lifted onto the support structure as an assembled unit and bolted and/or welded in place. The additional components of the PJFF may also be shop-fabricated offsite to further the benefits of the modular design. | 12-25-2014 |
055302000 | Pneumatic reverse flushing | 26 |
20090183472 | APPARATUS FOR COLLECTING DUST AND A PLEATED-TYPE FILTER THEREFOR - The purpose of this invention is to provide a pleated-type filter used for an apparatus for collecting dust that is optimally designed and to provide the apparatus for collecting dust using the filter, wherein the pleated-type filter can keep the resistance to its ventilation low when the filter is installed in the apparatus for collecting dust so that the pleats are directed vertically, and wherein the area for installing the main bodies of the pleated-type filters can be reduced as much as possible. | 07-23-2009 |
20090211209 | Cartridge element for a dust collector - A cartridge element and a dust collector is provided that can achieve a decrease in the size of a dust collector using a cartridge element, can effectively disperse dust, can be easily used, and has a simple structure. | 08-27-2009 |
20100031616 | Pulse Jet Air Cleaner Components; Features; Assemblies; and, Methods - According to the present disclosure a pulse jet air cleaner components, features and assemblies are described, as well as methods of use. Preferred v-pack configurations, scavenge arrangements, pulse jet arrangements and filter cartridge retention arrangements, are shown and described, for example. | 02-11-2010 |
20110011042 | Pulse jet air cleaner system; components; and, methods - Pulse jet air cleaner systems components and methods are described. The features relate to air cleaner housings that include a cartridge receiving section. Features described relate to a possible two-stage construction, a pulse jet accumulator section, pulse jet equipment for cleaning a filter cartridge positioned within the air cleaner; evacuation valve arrangements for projection of dust from the air cleaners; and other example features. Methods of assembly and use are also provided. | 01-20-2011 |
20110078985 | FILTER CARTRIDGE WITH CENTERBOARD, DUST COLLECTORS, AND METHODS - An air filter cartridge is provided including an air filter media construction having a first, outlet end, flow face and an opposite, second, inlet end, flow face. The filter media construction comprises fluted media secured to a facing media sheet. The filter media is closed to flow of unfiltered air completely therethrough. A centerboard is provided. The centerboard has a media portion embedded within the media construction. The centerboard has first and second opposite sides. The media portion that is embedded within the media defines an aperture arrangement extending completely through the centerboard from the first side to the second side. An adhering sealant secures the centerboard to the media construction. At least some adhering sealant extends through the aperture arrangement. | 04-07-2011 |
20110113736 | Filter assembly; components therefor; and, methods - Air filter assemblies and components therefor are described. The air filter assembly typically includes an air filter cartridge. Air filter cartridges including a media pack comprising at least a first stack of single facer strips are described. In examples described, at least a portion of the first stack of single facer strips is arcuate. Air filter assemblies are characterized that are configured, for example, to advantageously use such air filter cartridges. Example air filter assemblies are described that include pulse jet air cleaning systems. | 05-19-2011 |
20110154788 | APPARATUS FOR BACKWASHING FILTER - The reliability of backwashing valves constituted of first backwashing valves and second backwashing valves is ensured. A first backwashing valve (backwashing-gas rear valve) ( | 06-30-2011 |
20120073251 | Self-cleaning air filter - The self-cleaning air filter uses reverse pulse self-cleaning for small scale, small volume air filtration applications, such as vehicles and motorized equipment. The self-cleaning air filter includes a filter casing, a filter element housed within a filter casing, an electronically controlled pulse valve that releases the compressed air pulse, and a pulse pressure relief vent. During the cleaning cycle, the pulse pressure vent opens to vent the compressed air pulse to the atmosphere thereby maintaining the positive pressure differential between the inside and outside of the filter element, which sustains the cleaning action for the duration of the compressed air pulse. | 03-29-2012 |
20120198801 | AIR DISTRIBUTION ARRANGEMENT FOR A DUST COLLECTOR SYSTEM - A dust collector system including a plurality of air filters that are at least partially self-cleaning via a pulsed air system. The dust collector system presents a self-aligning, tool-free assembly for providing the pulsed air. The pulsed air system comprises an air distribution assembly including an air distribution manifold having a plurality of purge pipes and a frame for supporting at least some of the purge pipes, wherein at least two or more of the purge pipes are coupled together in a generally unitary assembly; and a positioning assembly for selectively positioning and removably locking the air distribution manifold in either of a service position or an operational position. | 08-09-2012 |
20140020345 | BAG FILTER FOR CLEANING DUST-LADEN GASES AND INJECTOR NOZZLE FOR SUCH A BAG FILTER - A bag filter assembly for cleaning dust-laden gases has a housing, which is divided into a filtered-gas side and an unfiltered-gas side by a bag bottom formed with openings. Several filter bags with a flat cross-section and support baskets are arranged in the bag bottom openings. The filter bags have support baskets and injector nozzle at the open end for conducting and accelerating compressed-air pulses for dedusting. The injector nozzle protrudes at least partially into the openings of the bag bottom. Sealing elements are arranged on the outside of the injector nozzle at the level of the bag bottom in order to form a defined gap for a defined compression of the filter bag between the sealing elements and the jacket surface of the opening in the bag bottom and thus to independently seal the filter bag with respect to the opening of the bag bottom. | 01-23-2014 |
20140059982 | APPARATUS FOR BACKWASHING FILTER - The reliability of backwashing valves constituted of first backwashing valves and second backwashing valves is ensured. A first backwashing valve (backwashing-gas rear valve) ( | 03-06-2014 |
20140245704 | DIVERGING NOZZLES AND FILTER ELEMENT CLEANING SYSTEMS USING DIVERGING NOZZLES - Diverging nozzles and filter element cleaning systems using the diverging nozzles to produce reverse gas pulses in a variety of cleaning methods are described herein. | 09-04-2014 |
20140318087 | VALVE ARRANGEMENT - A fabric filter valve arrangement ( | 10-30-2014 |
20140366493 | FILTER APPARATUS - A filter apparatus including: a casing including, in a sealed space provided therein, a fluid inflow chamber, a filtration chamber and a drain chamber; a filter element provided inside the filtration chamber to let a fluid pass therethrough from inside to outside to perform filtration; a backwash slide member movably provided inside the filter element and removing trapped matter adhering to an inner circumferential surface of the filter element by an inward flow generated by a difference in pressure inside and outside the filter element at the time of backwashing; a backwash pipe that lets the inward flow flow toward the drain chamber; an actuation cylinder that lets the fluid from the backwash pipe flow toward the drain chamber; and a fluid flowing unit allowing a fluid to flow, enabling a piston member to move inside the actuation cylinder. | 12-18-2014 |
20150082755 | FILTER CARTRIDGE WITH CENTERBOARD, DUST COLLECTORS, AND METHODS - An air filter cartridge is provided including an air filter media construction having a first, outlet end, flow face and an opposite, second, inlet end, flow face. The filter media construction comprises fluted media secured to a facing media sheet. The filter media is closed to flow of unfiltered air completely therethrough. A centerboard is provided. The centerboard has a media portion embedded within the media construction. The centerboard has first and second opposite sides. The media portion that is embedded within the media defines an aperture arrangement extending completely through the centerboard from the first side to the second side. An adhering sealant secures the centerboard to the media construction. At least some adhering sealant extends through the aperture arrangement. | 03-26-2015 |
20150343362 | PULSE JET AIR CLEANER SYSTEMS, COMPONENTS, AND, METHODS - Pulse jet air cleaner systems, components and methods are described. The features relate to air cleaner housings that include a cartridge receiving section. Features described relate to a possible two-stage construction, a possible pulse jet accumulator section, pulse jet equipment for cleaning a filter cartridge positioned within the air cleaner; possible evacuation valve arrangements for projection of dust from the air cleaners; and other example features. Methods of assembly and use are also provided. | 12-03-2015 |
20160016103 | AIR FILTER SYSTEMS AND METHODS OF USING THE SAME - The air filter systems described herein include one or more pulse collectors and pulse generators aligned along pulse axes. The pulse generators and filter elements may be arranged along a pulse distance as measured from a pulse outlet to a filter element opening. The pulse collectors and the filter elements may have openings with a relationship between them within parameters described herein. The pulse collectors may have a relationship between their hydraulic diameter and their length within parameters described herein. The pulse collectors may include a filter section and a pulse section that meet at a junction along a length of the pulse collector. The pulse sections may have a hydraulic diameter that increases when moving from the junction to the tube sheet opening of the pulse section. The filter sections may have a hydraulic diameter that remains constant when moving from the junction to the filter end opening of the filter section. Filter elements/cartridges used in the air filter systems may have filter media shaped or formed into ovate cross-sections | 01-21-2016 |
20160084161 | INLET AIR FILTRATION SYSTEM WITH SELF-CLEANING HYDROPHOBIC FILTER BAG - The present application provides a pulse filtration system for use with a compressor of a gas turbine engine. The pulse filtration system may include a pulse filter, a compressed air system in communication with the pulse filter, and a hydrophobic filter bag surrounding the pulse filter in whole or in part. | 03-24-2016 |
20160096134 | FILTERING CHAMBER FOR GAS TURBINES AND METHOD OF MAINTENANCE THEREOF - A filter system for filtering intake air of a gas turbine, comprising a first filter arrangement and a second filter arrangement, located downstream from the first filter arrangement and having a higher collection efficiency than the first filter arrangement. Furthermore, a guard filter arrangement, having a lower collection efficiency than the first filter arrangement, is located between the first filter arrangement and the second filter arrangement. | 04-07-2016 |
20160101381 | Enhanced air filtration mechanism - A filtration system which uses a frame being a multi-sided tube positioned substantially horizontal. The tube is closed at a first end and supports a multitude of filters which filter the ambient air flowing into the interior of the multi-sided tube. A motor mechanism rotates the multi-sided tube around a horizontal axis while a fan draws air from the second end of said multi-sided tube, thereby pulling the ambient air through the filters. A pulsed air jet is directed at a bottom group of filters and periodically cleans the filters, allowing the debris to fall into a catch basin where an auger pulls the debris away. | 04-14-2016 |
055303000 | Draft diverted from one side of filter to other | 6 |
20110083408 | FILTER CARTRIDGE, DUST COLLECTORS, AND METHODS - An air filter cartridge has Z-media and a gasket arrangement with a perimeter gasket member against the downstream flow face and a side gasket member adjacent to at least a partial extension of a first side panel. The side gasket member includes no portion against second, third, and fourth side panels of the air filter cartridge. The air filter cartridge can be used in a dust collector having a tubesheet and a frame arrangement extending from the tubesheet. The perimeter gasket member seals against the frame arrangement and the side gasket member seals against the tubesheet. A method of servicing includes orienting the air filter cartridge against a guide ramp and moving the filter cartridge until the side gasket member is engaged against the tubesheet sealing surface. | 04-14-2011 |
20110185689 | FILTER ELEMENT, DUST COLLECTOR, AND METHODS - A filter element includes a media pack and a gasket member. The gasket member includes first and second gasket regions separated by a channel. One or more filter elements are usable in a dust collector. One example dust collector includes a collector housing having a dirty air inlet, a clean air outlet, and a tube sheet dividing the housing between an unfiltered air volume and a clean air volume. At least one filter element is removably mounted and sealed within the tube sheet. A gasket member secured to the element includes first and second gasket regions separated by a channel. At least one projection angled relative to a plane of the tube sheet extends into the channel of the gasket member. A method of servicing a dust collector includes removing a first filter element from the tube sheet in the housing, and then sealing a second filter element against the tube sheet by orienting at least one projection extending from a plane of the tube sheet into a channel defined by a gasket member secured to the second filter element. Next, an axial force is exerted against the gasket member to form a seal between the gasket member and the tube sheet. | 08-04-2011 |
20120324842 | FILTER - A filter bag is longitudinally formed with at least a portion of the filter bag formed in a frusto-conical shape. The filter bag has a plurality of radially extending members that form a propeller shaped cross-section. A lower, frusto conically shaped lower portion balloon or billows during a reverse air cycle enhances dust fall from the exterior for cleaning. A manifold having multiple openings is also disclosed. | 12-27-2012 |
20130152519 | DUST COLLECTOR - A dust collector having a filter for catching dust in air flowing in an intake path is provided. A pair of the intake paths are formed so as to be combined together on an upstream side of an electric blower provided in a main body. A pair of communication paths allow a discharge passage to communicate with each of the intake paths. A first opening and closing member is provided so as to open and close the intake path, and in a normal state, is biased to open the intake path. A second opening and closing member is provided so as to open and close the communication path, and in the normal state, is biased to close the communication path, and opens the communication path in response to a closing operation of the intake path by the first opening and closing member. | 06-20-2013 |
20130219841 | DUST-COLLECTING SYSTEMS AND APPARATUSES - Systems and apparatuses are described that collect dust from the air in a manner that maximizes the volume of air that can be cleaned, while allowing for easier transport of the dust-collecting apparatus to the installation site and improving distribution of air flow within the apparatus so as to provide for a more efficient filtration of the air. In particular, the dust-collecting apparatus includes first and second housing modules that are designed to be joined longitudinally to create a housing. The module having an inlet opening of the apparatus further includes an inlet baffling system that includes multiple baffle plates near the inlet opening that facilitate a cross flow air profile for the air entering the housing. Other components, including a target plate, a baffle support structure having support plates and cross supports, and hopper baffles, may also be provided to secure the baffle plates and enhance the airflow distribution. | 08-29-2013 |
20130255202 | FLUID FILTERING UNIT AND SYSTEM - Provided is a fluid filtration assembly including a housing configured with one or more filter units extending in fluid flow between a raw fluid inlet port and a filtered fluid outlet port, a filter rinsing assembly being in fluid communication with a rinsing fluid inlet port, and propulsion fluid inlet port being in flow communication with a propulsion mechanism for propelling one or both of the filter rinsing assembly and the filter unit with respect to one another. Further provided is a thread tensioning mechanism for controlling tension of coiled threads of a thread-type filtering cartridge. | 10-03-2013 |
055304000 | Filter manipulation, shaking or flexing for precluding or removing encrustation | 9 |
20080264007 | Dust collecting apparatus for vacuum cleaner - A dust collecting apparatus for a vacuum cleaner is provided. The dust collecting apparatus includes a dust collecting unit detachably mounted in a main body of the vacuum cleaner, to separate and collect dust from drawn-in air flowing therein; a filter unit disposed above the dust collecting unit, the filter unit comprising a filter to filter fine dust particles contained in air from which the dust has been separated by the dust collecting unit; a top cover to cover the filter unit and to discharge the air filtered through the filter; a rotating unit, which is disposed inside the filter unit, to strike a portion of the filter and to remove the fine dust particles attached to the filter; and a dust compression plate to compress the collected dust while being moved up and down inside the dust collecting unit by power transferred from the rotating unit. | 10-30-2008 |
20080271419 | Filter Cleaning Apparatus - A filter cleaning mechanism for a cylindrical filter within a filter box of a surface maintenance machine having a shaker plate engaging a top end of the filter and having vibrations induced via a motor and eccentric mass combination. In one example, the motor and eccentric mass are mounted to a hinged cover plate via a vibration isolating connection. A pair of slot structures may limit movement of the filter to a generally vertical direction relative to ground. | 11-06-2008 |
20090049808 | GAS FILTRATION APPARATUS - In order to maintain the dust collection efficiency, it comprises: a filtration chamber | 02-26-2009 |
20090113858 | Filtration - A filtration unit having an inlet to, and outlet from, a filtration zone in which one or more filter elements are located, the filtration zone being located above a collection zone, the collection zone comprising powered movement means operable to cause particulate matter contacting such movement means to be urged towards storage means. | 05-07-2009 |
20120247073 | RECYCLABLE PARTICULATE FILTER - An exhaust gas filter for a vehicle having a heat engine that includes, inside a filter body, at least one soot-filtering pleated medium, and a mechanism for unsealing the medium. | 10-04-2012 |
20140020346 | SYSTEMS AND METHODS FOR CONTROLLING PARTICULATE RELEASE FROM LARGE EQUIPMENT - A containment system for reducing the release of harmful respirable particles through surface openings in equipment that carries sand includes a filter-receiving member configured to be coupled over an opening in a surface of the equipment and a filter member configured to be coupled to the filter-receiving member. The filter-receiving member can have a first side, a second side, and a passageway extending from the first side to the second side. The filter can have a porosity that permits air to flow through the filter member and restricts the flow of solid particulates. | 01-23-2014 |
20140102053 | FILTER SHAKER SYSTEM AND METHOD - An air filter cleaning system comprises a filter shaker plate having a top surface and a bottom surface, a motor mount extending from the top surface of the filter shaker plate, a motor mounted on the motor mount, a first filter clamp configured to be positioned adjacent to a first side of the filter shaker plate, and a second filter clamp configured to be positioned adjacent to a second side of the filter shaker plate. | 04-17-2014 |
20140311106 | DUST CLEANING APPARATUS - A dust cleaning apparatus comprising a sieve, a beater and a driver is provided. The beater includes a moving part and a beating part. The moving part rotates around a shaft for a circular motion or vibrates relative to a supporting rod for a vibration motion. The beating part is disposed on the moving part and beats the sieve by the movement of the moving part. The driver connects the shaft or the supporting rod to drive the moving part in motion. | 10-23-2014 |
20140360143 | CANISTER WOODWORKING FILTER CLEANER - A cleaner for a canister woodworking filter of a dust collector includes a vibrating unit magnetically attached to the top of a canister woodworking filter. The vibrating unit may have a sufficiently compact profile (i.e., low height) to avoid interference with the existing handle. The vibrating unit may be controlled by a controller. The controller may include a remote control unit to remotely wirelessly activate the vibrating unit. The controller may be configured to automatically activate the vibrating unit for a determined period of time after the dust collector ceases running. | 12-11-2014 |