Did You Know...
...that the first rickshaw was invented in 1869 by an American Baptist minister, the Rev. E. Jonathan Scobie, to transport his invalid wife around the streets of Yokohama?
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| Number | Title | Issue Date |
| 7438736 | Filter bag structure A filter bag structure for use in a baghouse that has a tubesheet with a plurality of openings. The filter bag structure includes a substantially cylindrical filter bag having an axial end portion formed into a cuff. The filter bag has filtration media of a substant... | 10/21/2008 |
| 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 |
| 6949188 | Filter assembly having improved sealing features A filter assembly including a filter housing defining an interior chamber with an open end, a filter disposed within the interior chamber, and a cover removably positioned over the open end to enclose the interior chamber. The filter housing defines an axially-facin... | 09/27/2005 |
| 6694727 | Exhaust processor An exhaust processor includes a soot filter and a filter regenerator. The filter regenerator is configured to burn off particulate matter collected in the soot filter to regenerate the soot filter.... | 02/24/2004 |
| 6290752 | Device and process for adsorption or chemisorption of gaseous constituents from a gas flow A filter device for adsorption of gaseous constituents from a gas flow includes a filter chamber with filters arranged therein, a clean-gas chamber connected to the first chamber in a fluid-conducting manner via the filters, and a collection chamber arran... | 09/18/2001 |
| 6245130 | Filter system A bag filter system for filtering fluid has been invented which has, in certain aspects, a mount apparatus having at least one mount opening therethrough for emplacement therethrough of part of a bag filter, at least one bag filter having a support member... | 06/12/2001 |
| 6233926 | Apparatus and method for filtering particulate in an exhaust trap An apparatus and method are disclosed for removing or filtering particulate from an internal combustion engine exhaust and/or for regenerating through flow particulate traps with the incoming flow of exhaust gas. The particulate trap modules have through ... | 05/22/2001 |
| 6090173 | Air filter assembly for filtering air with particulate matter A method of cleaning a filter element includes discharging a quantity of pressurized air from a blow pipe into a Venturi element in air flow communication with a filter element to provide a positive cleaning pressure differential along greater than 95% of... | 07/18/2000 |
| 5904743 | Dust collector bag fastening apparatus An improved baghouse which is adapted to remove particulate matter from an air flow. The baghouse has three main chambers being the plenum, the receiving chamber, and a hopper. The three chambers are separated from each other using tubesheets having multi... | 05/18/1999 |
| 5453116 | Self supporting hot gas filter assembly A device and method for maintaining a clean gas stream includes a particulate filter comprising of support tube made from a formed textile. The formed textile is constructed from a continuous filament inorganic yarn and is porous to allow gas and particul... | 09/26/1995 |
| 5417855 | Filter bag subassembly A filter apparatus having a filter bag subassembly for collecting contaminating material. The filter bag sub-assembly includes five diametrically and axially-spaced bags and an integral collar. The five spaced bags form five spaced chambers and the integr... | 05/23/1995 |
| 5277704 | Mist collector A mist collector for separating liquid components from a mist-laden gas stream to include a housing which houses three filter or separation stages. The stream is pumped through ducts into the bottom of the housing, and is pulled upwardly through the filte... | 01/11/1994 |
| 5269835 | Baghouse floater purge system Apparatus and method for purging floaters in top inlet baghouse construction wherein the upper plenum of a baghouse compartment and the clean exhaust gases duct are operably connected with a purge duct, a controllable purge damper inserted therein. At ter... | 12/14/1993 |
| 5178655 | Vacuum cleaning device A vacuum cleaning device comprising an enclosure (20) containing a chamber (30) in which is located at least one flexible wall such as a bag (2) designed to stop solid particles while letting through the air, and containing a compartment (40) provided wit... | 01/12/1993 |
| 5120333 | Recycling system for industrial vacuum machine Industrial vacuum machines such as those shown in U.S. Pat. No. 4,150,913 employ cloth filters in the last stage of separation of fine particles from the air stream. Such filter are cleaned inside the machine by vibration. In accordance with this inventio... | 06/09/1992 |
| 4929262 | Down draft re-circulating system A down draft air re-circulating filtration system for auto body shops and the like companies a filtration unit intaking air from the floor and having a series of three filters removing particles greater than about 1 micron and a fabric ducting distributin... | 05/29/1990 |
| 4874410 | Vacuum producing apparatus A vacuum producing apparatus includes a bag separator having a cylindrical housing containing a plurality of filter bags supported by and extending between upper and lower bag heads. A radially disposed inlet conduit projects through the wall of the separ... | 10/17/1989 |
| 4824450 | Air filter apparatus A filter device, usable as a self-contained or freestanding unit or in association with an associated air treatment installation such as a furnace or air conditioner. A preferred embodiment has a housing in which is supported a parallel-arranged plurality... | 04/25/1989 |
| 4822430 | Method and apparatus for cleaning boiler burners A method and apparatus for use in cleaning residue from boiler tubes including a housing having an upper chamber and a lower chamber separated by a wall having a plurality of openings permitting airflow from the lower chamber into the upper chamber. A vac... | 04/18/1989 |
| 4681607 | Dust removal A dust pre-precipitator centrally supports a plurality of filters with dry filter elements; raw gas flows down in the pre-precipitator and emerges from the bottom thereof in a dust bag, and a reversal of gas flow obtains as it flows through the dust bag a... | 07/21/1987 |
| 4671812 | Tensioning device for bag filters For an inside to outside dust collector, a self tensioning device for bag filters for connecting the upper end of a fabric sleeve filter to an overhead support. The device includes a modified double draw bar spring assembly interposed between the overhead... | 06/09/1987 |
| 4655806 | Dust separator A dust separator including a cylindrical housing that is separated by a pair of spaced apart tube sheets into an upper incoming air distributor, an intermediate tube compartment and a lower settling chamber. Large diameter air permeable filter tubes are s... | 04/07/1987 |
| 4648889 | Top inlet baghouse construction A baghouse dust collector for top inlet operation, having an upper tubesheet and a lower tubesheet and a hopper below the lower tubesheet for collecting dust, includes an improved top end inflow thimble for the filter bags, each thimble having a generally... | 03/10/1987 |
| 4618353 | Filter bag assembly An improved filter bag assembly is shown for use in a filter bag housing having a plurality of filter bags, each of the filter bags being anchored at a lower end and being suspended within the bag housing in a tensioned relation by an upper end thereof. A... | 10/21/1986 |
| 4597783 | Tensioning device for bag filters For an inside to outside dust collector, a tensioning device for bag filters for connecting the upper end of a fabric sleeve filter to an overhead support. The device includes a modified double draw bar spring assembly having a conical spring therein inte... | 07/01/1986 |
| 4590039 | Auto-preseparation of carbon black Aerosols such as a carbon black containing smoke are subjected to an auto-preseparation by passing the aerosol or smoke through loose particles collected and accumulated and only thereafter passing the aerosol or smoke through a separator such as a filter... | 05/20/1986 |
| 4584003 | Apparatus for treating dust-containing gas An apparatus for treating a dust-containing gas which comprises at least one vertically arranged filtration tube made of a solid porous material, a first filration tube supporter provided at the outer and upper part of the at least one filtration tube, a ... | 04/22/1986 |
| 4579570 | Shaking mechanism for filter bags The shaking mechanism for the filter bags in the dust removal section of an abrasive blast cabinet includes a shaker rod from which the filter bags are suspended. The shaker rod is mounted for both axial movement along and rotational movement about its lo... | 04/01/1986 |
| 4539025 | Filtering system A filter system wherein a cylindrical shell having open ends and a gas-impervious wall with means for supporting a filter tube coaxially within the shell to form an annular chamber therebetween has means for securing the filter tube to the other open end,... | 09/03/1985 |
| 4465498 | Gas cleaning installation A gas cleaning installation, such as might be used to filter particulate material from exhaust gases of a power generating boiler or the like, which comprises a pair of gas cleaning chambers each containing filtration means for a gas stream passing throug... | 08/14/1984 |
| 4411674 | Continuous clean bag filter apparatus and method A continuously cleaned bag filter provides a second filter stage for removing dust from air discharged from a cyclone or other primary separator. The primary separator removes the majority of particulate matter from air delivered thereto. In the bag filte... | 10/25/1983 |
| 4401446 | Method and apparatus for increasing the efficiency of internal collection filter bags One or more hollow tubular air channeling members are positioned in the interior of an internal collection type filter bag to separate the incoming dirty air into a plurality of portions essentially confined from each other and to direct these separated a... | 08/30/1983 |
| 4396590 | Auto-preseparation of carbon black Aerosols such as a carbon black containing smoke are subjected to an auto-preseparation by passing the aerosol or smoke through loose particles collected and accumulated and only thereafter passing the aerosol or smoke through a separator such as a filter... | 08/02/1983 |
| 4378728 | Coating booth for electrostatic application of pulverized materials A coating booth for the electrostatic application of powdery materials onto workpieces. The coating booth has a generally tubular configuration which when viewed in side elevation is generally oval but with a spiral curved bottom front wall which melds in... | 04/05/1983 |
| 4373939 | Air-filter vacuum sweep apparatus Vacuum sweep apparatus in an air-filter system which includes a horizontally disposed plate having an array of openings, a plurality of filter bags mounted on the upper side of the plate and communicating with the openings, and a vacuum sweep arm mounted ... | 02/15/1983 |
| 4370153 | Apparatus for cleaning filter bags Apparatus for filtering entrained particulate matter from a gaseous fuel embodies an upstanding housing having a hopper adjacent its lower end for receiving dislodged particulate matter. At least one upstanding, porous tubular filter bag is mounted within... | 01/25/1983 |
| 4356007 | Automatic filter network protection, failure detection and correction system and method This invention provides an automatic sensing and correction feature for each fabric type filter element in a filtering system with a multiplicity of separate filter elements, that operates when the filter develops a leak to take only an individual filter ... | 10/26/1982 |
| 4354528 | Poppet damper with gas flow turning means Rectangular poppet damper or valve has particular utility as an isolation damper in a fabric filter dust collector and includes integral gas flow turning means which are positioned so as to minimize pressure drop. The poppet plate is pivoted at one end to... | 10/19/1982 |
| 4339251 | Filter bag tensioning arrangement A movable winch adapted to be aligned on a guide track above each of the filter bags in a baghouse to secure the bags at a predetermined tension within the baghouse.... | 07/13/1982 |
| 4338105 | Bearing for filter bag support arrangement A bearing assembly for supporting one end of a shaker shaft from which a plurality of filter bags are suspended in a baghouse. The bearing assembly includes a stationary bracket mounted within the gas cleaning chamber of the baghouse, a supporting member ... | 07/06/1982 |
