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| Number | Title | Issue Date |
| 7871463 | Dust collection device A dust collection device has a tank, a suction unit, a filtering unit, a dust removal unit, a first detection unit, and a control unit. The tank has an air inlet for accommodating dust. The suction unit aspirates the dust through the air inlet. The filtering unit ca... | 01/18/2011 |
| 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 |
| 7258723 | Particulate filter assembly and associated method A particulate filter assembly includes an electrode assembly, a particulate filter positioned in an electrode gap defined between two electrodes of the electrode assembly, a power supply electrically coupled to the electrode assembly, and a controller for controllin... | 08/21/2007 |
| 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 |
| 7077888 | Device for separating dust from flue gases from combustion plants, especially solid fuel combustion plants The invention relates to a device for separating dust from flue gases from combustion plants, especially solid fuel combustion plants, comprising at least one dust filter via which the flue gases are guided, and by means of which the dust from the flue gases can be ... | 07/18/2006 |
| 7029510 | Particle filter with carbon deposit combustion for diesel engines In a particle filter with carbon (soot) deposit combustion for Diesel engines comprising a filter with filter areas of sinter metal through which exhaust gases from the Diesel engine are conducted to remove the soot therefrom, the soot collected at the raw gas side ... | 04/18/2006 |
| 6830599 | Back-flow valve and trigger for 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... | 12/14/2004 |
| 6454834 | Regenerable air cleaning device A regenerable air cleaning device is disclosed which comprises a filter holder supporting a regenerable filter that includes activated carbon fibers (ACF) and a control system that is adapted to determine when to regenerate the regenerable filter. The dev... | 09/24/2002 |
| 6152998 | Automatic filter cartridge An automatic filter cartridge in accordance with the present invention includes a frame which is formed with an aperture and an elongated filter medium which is attached to a supply roller and a take-up roller. Specifically, the supply and take-up rollers... | 11/28/2000 |
| 5711785 | Method and apparatus for controlling the cleaning cycle of air filter elements and for predicting the useful life thereof A method and apparatus are disclosed for cleaning filter elements, such as filter bags in a plurality of baghouses and for predicting the useful life of such filter elements in individual baghouses. The volumetric flow rate of air from each baghouse is co... | 01/27/1998 |
| 5217512 | Apparatus for filtering debris from a moving airstream An improved air filtration apparatus of the rotary prefilter type having a rotating filter screen disposed in a wall of the filter housing is equipped with a constricted suction nozzle which is reciprocable radially across the rotating filter surface to r... | 06/08/1993 |
| 4881176 | Filter analyzing system An in situ apparatus and method to clean filter housing and related piping, sterilize and perform integrity testing of a filter for purifying a gas or liquid to be used within various industrial environments such as chemical, pharmaceutical, food processi... | 11/14/1989 |
| 4874407 | Regenerable filter A regenerable filter for use with exhaust gas streams containing combustible particles, the filter including a filter medium upon which the particles build up as the filter medium removes the particles from the gas stream, a scraper to remove the particle... | 10/17/1989 |
| 4851015 | Muffler apparatus with filter trap and method of use Muffler apparatus for reducing both sound and particulates from exhaust gases from an engine. The apparatus includes resonating chambers, flow distribution structure and a cellular ceramic core filter module. Filter regeneration mechanism includes a heati... | 07/25/1989 |
| 4719662 | Dust-removal apparatus for textile machines and machine rooms A dust-removal apparatus for textile machines and machine rooms includes a chamber containing dust-laden air, a clean-air chamber, a tube disposed between and separating the chamber containing dust-laden air from the clean-air chamber, at least part of th... | 01/19/1988 |
| 4544388 | Apparatus for periodically oxidizing particulates collected from exhaust gases An apparatus is disclosed for regenerating a filter trap used to collect particulates from the exhaust gas of an internal combustion engine. The apparatus comprises: (a) an assembly providing a flow of a heat transfer medium through the filter trap: (b) a... | 10/01/1985 |
| 4521230 | Self-cleaning furnace filter construction A self-cleaning filter construction for a forced air furnace which includes an endless belt filter which passes around and extends between two roller members. A suction system is mounted in a position to clean both the interior and exterior surfaces of th... | 06/04/1985 |
| 4443235 | Self-cleaning cabinet dust collector A compact, self-cleaning, cabinet, dust collector is provided. The collector housing is a single-piece, molded unit having recessed areas and a molded air inlet. Entering dust-laden air is directed into two flows in a passageway surrounding a suspended, f... | 04/17/1984 |
| 4436535 | Method and device for removing soot from exhaust gases A method and device for removing soot from the exhaust gases of a diesel-type internal combustion engine, using a soot filter in the exhaust line and a dosing device which injects a dose of a combustion-inducing substance, for example CuCl, into the soot ... | 03/13/1984 |
| 4359864 | Burn-out type cleaning means for particulate filter of engine exhaust system Apparatus for raising the temperature of internal combustion engine exhaust gases high enough to burn collected particulate material from particulate filter means (27/56) in the exhaust system. An electrical resistance heating element (37/71) which confro... | 11/23/1982 |
| 4322387 | Catalytic exhaust gas torch Filter apparatus for filtering combustible particles from an exhaust gas stream, and for periodically rejuvenating the filter bed and catalyst section thereof, by incinerating retained particles. At least a portion of an engine's exhaust gas stream is ini... | 03/30/1982 |
| 4214878 | Filtering apparatus and methods of exchanging particulate filter materials A filtering apparatus for filtering a fluid comprises two coaxial walls which are provided with openings for the radially-outward passage of the fluid to be filtered, granular filtering material being disposed between the walls. The fluid to be filtered i... | 07/29/1980 |
| 4204846 | Self-cleaning air filter An apparatus for filtering particulate material from air and for removing the particulate material collected upon a filter is disclosed. The apparatus includes a housing having an air inlet and an air outlet. A hollow longitudinally extending filter is se... | 05/27/1980 |
| 4162148 | Filtering apparatus A filtering apparatus for the filtering of fibers and equivalent material from flowing air, and in particular for use in textile operations, has been invented in which the fiber material is firmly compacted so that as much fiber material as possible may b... | 07/24/1979 |
| 4006033 | Trash removal from vacuum system in an open end spinning machine A method and apparatus for removing trash from an air stream in the vacuum system of an open end spinning machine without interrupting operation of the machine. A filter removes the trash from the air stream and a traveling scraper removes the trash from ... | 02/01/1977 |
| 3953961 | Method and apparatus for spinning yarns on open-end spinning machines and pneumatically removing fiber and trash waste incident to spinning A method and apparatus for removing fiber waste from yarn spinning rotors of open-end spinning machines and for removing trash waste liberated from fibers in their paths of travel to the respective rotors, utilizing a common primary airflow for drawing ai... | 05/04/1976 |
