Did You Know...
...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!
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| Number | Title | Issue Date |
| 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 |
| 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 |
| 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 |
| 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 |
| 7320717 | Industrial scale honeycomb type dust collector A dust collecting filter such as a honeycomb-type industrial filter for the industrial filtering of gas containing solid particles is provided. The filter includes a plurality of collateral inlet and outlet channels separated by shared filtering boundaries. The inle... | 01/22/2008 |
| 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 |
| 7269942 | Wall flow particulate trap system A wall-flow particulate trap system regenerated by reverse flow of filtered exhaust gas through porous walls of a plurality of tubular passages is disclosed. The system includes a particulate trap having an inlet and an outlet, the particulate trap adapted to receiv... | 09/18/2007 |
| 7267382 | Low maintenance vacuum generation The present invention features a system to generate vacuum for picking up and holding a component in a component placement machine wherein the arrangement of the elements comprising the system prevents the flow of foreign matter back through the system. One arrangem... | 09/11/2007 |
| 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 |
| 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 |
| 6989045 | Apparatus and method for filtering particulate and reducing 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... | 01/24/2006 |
| 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 |
| 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 |
| 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 |
| 5514194 | Self-cleaning gas filtering apparatus An improvement to self-cleaning gas filters, gas filter-separators or gas filter-coalescer devices is disclosed. The improvement reduces the waste of gas during a self-cleaning cycle, by utilizing a single cage window rather then the usual plurality of ca... | 05/07/1996 |
| 5405421 | Gas stream filtering system using filtered gas for reverse flow cleaning A fabric-filter baghouse using heated, filtered exhaust gas for reverse-flow cleaning of fabric filter bags. The baghouse includes a housing having an inlet chamber and an outlet chamber therein, a number of fabric filter bags mounted between the inlet ch... | 04/11/1995 |
| 5174797 | Fiber collector A fiber collector collects fiber from a moving airflow having entrained fibers. A primary plenum has a fiber collection zone in its lower portion. Adjacent screens downstream of the primary plenum are slanted with respect to the primary plenum so that fib... | 12/29/1992 |
| 5129125 | Cleaning machine A cleaning machine includes a frame having wheels, a suction blower having an inlet and an outlet mounted on the frame, an intake opening communicated with the inlet of the suction blower for sucking dirt containing relatively large dirt such as fallen le... | 07/14/1992 |
| 5129922 | Method and apparatus for removing contaminated air from an enclosed dirty air space Contaminated air is drawn from a relatively enclosed dirty air space and filtered to remove both contaminants and other particulate materials. A main mechanical filter is positioned between the dirty air space and a surrounding environment which is to be ... | 07/14/1992 |
| 5066317 | Compressed gas dryer system with pressure retention In its broad aspect, the present invention involves a governor-controlled gas compressor system for maintaining gas pressure in a gas reservoir between a predetermined first pressure level at which said compressor commences to compress pressurized intake ... | 11/19/1991 |
| 4778491 | Continuously operated and cleaned filter apparatus Dirty air contaminated with cotton dust or the like is alternately directed against the left-hand section of a filter screen, then the right-hand section by a pair of movable baffle plates or vanes. While the dirty air impinges upon one section of the fil... | 10/18/1988 |
| 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 |
| 4696225 | Air filter arrangement for vehicle air-conditioning system In order to achieve an effective cleaning of the filter in the case of a heating or air-conditioning system of a motor vehicle without having to change the rotating direction of the fan, the fan is installed in the incoming-air flow downstream of the air ... | 09/29/1987 |
| 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 |
| 4668253 | Apparatus for the processing and scrubbing of gas entrained with particulate matter An apparatus for the processing and scrubbing of contaminated gases i.e., gases entrained with particulate matter, is presented. The apparatus comprises a primary dust removal unit which receives a descending gas pipeline originating from a generator or s... | 05/26/1987 |
| 4666472 | Dust collector with deflector means A dust collector comprising a hopper, an exhaust chamber, a wall separating the hopper and the exhaust chamber and including an opening, a hollow filter assembly for filtering contaminated air flowing through the opening from the hopper, the filter assemb... | 05/19/1987 |
| 4600415 | Gas filtering apparatus The present invention is directed to dust filtering apparatus comprising a cylindrical housing separated by a horizontal partition into dirty and clean air chambers with a plurality of radially spaced bags attached to the partition hanging in the dirty ai... | 07/15/1986 |
| 4581135 | Self-cleaning fluid filter with a drain A self-cleaning renewable fluid filter that flushes a permanent filter media while the used oil is pumped out by the engine oil pump through a drain in the housing. The fluid filter has an inlet and a drain, a center core with an outlet, a drain valve nor... | 04/08/1986 |
| 4482365 | Vortex air cleaner and self-cleaning barrier filter assembly for supercharged engines An air cleaner assembly is provided for supercharged engines including a supercharger compressor, comprising a vortex air cleaner upstream of the supercharger compressor, and a rotatable barrier filter cartridge that is self-cleaning downstream of the sup... | 11/13/1984 |
| 4468240 | Filtering separators having filter cleaning apparatus This invention relates to filtering separators of the kind having a housing which is subdivided by a partition, provided with parallel rows of holes or slots, into a dust-laden gas space for receiving filter elements positioned in parallel rows and being ... | 08/28/1984 |
| 4445914 | Industrial dust filter with jet induced reverse air cleaning A self cleaning industrial dust filter includes a housing divided by a tube sheet into an upper clean air chamber and a lower dirty air chamber. Pleated fiber cartridge type filters are supported in the lower chamber from the tube sheet and the interior o... | 05/01/1984 |
| 4378979 | Method and apparatus for purging and isolating a filter compartment within a baghouse installation A method and apparatus for purging hot flue gases from one or more of the filter compartments in a baghouse installation wherein heated ambient air is admitted to the reverse air system of the installation which directs the ambient air into the compartmen... | 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 |
| 4372713 | Bulk material receiver The bulk material receiver and dispenser includes a hopper with a lower material outlet opening and an upper material and air inlet opening. The upper portion or "bonnet" of the hopper includes a pair of air passageways with a filter in each passageway, a... | 02/08/1983 |
| 4364749 | Method and apparatus for sealing the inlet of a filter compartment to isolate the compartment within a baghouse installation A method and apparatus for isolating one or more of the filter compartments in a baghouse installation wherein an inlet damper having a pair of spaced closure members is provided in the inlet duct of each of the compartments. When the inlet damper associa... | 12/21/1982 |
| 4299604 | Air inducer and backwasher for an air cleaner An air cleaner assembly (10) which includes a mechanism (14) for inducing the flow of air through the air cleaner (10) and for backwashing a filter element (18) is disclosed. A filtering chamber (28) is defined between the interior of a housing (12) and a... | 11/10/1981 |
| 4296780 | Apparatus including throttling device for use in ventilation duct An air jet cleaning apparatus for use with throttling devices mounted in ventilation ducts in which the throttling device includes a body having opposite air inlet and outlet sides and a plurality of fine through passages for conveying air flowing from th... | 10/27/1981 |
| 4295867 | Apparatus for separating carbon black from carbon-black aerosol The herein-proposed apparatus for separating carbon black from a carbon-black aerosol stream comprises an apparatus in which a carbon-black aerosol is passed through a granular bed of carbon-black grains in a downflow manner. The carbon-black aerosol is s... | 10/20/1981 |
