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Six-year-old Robert W. Patch granted a patent for a "toy truck".
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| Number | Title | Issue Date |
| 7101420 | Self cleaning air filtration machine and a method for using the same Self cleaning air filtration machine and a method for using same comprising; a filter with a motor driven belt or disk or counter rotating disks that are perforated, a spray bar, a recirculation pump and supply line, a wet tank, a ultrasonic transducer, ultraviolet ... | 09/05/2006 |
| 7018449 | Filtration media Particles may be used to filter oleo material such as grease from a flow of fluid such as a gas. The particles can be arranged into a bed to filter the oleo material from the fluid. The filtrate substance collect on the inorganic particles. The particles are re-usab... | 03/28/2006 |
| 6939398 | Drum scrubber The invention creates a new type of scrubbers: drum scrubber. In the drum scrubber, processed gas passes through a wet fiber filter, but unlike previously invented fiber-bed scrubber, the fiber is constantly cleaned. The cleaning is achieved by using filter material... | 09/06/2005 |
| 6866693 | Washable air filter for internal combustion engine A washable air filter for an internal combustion engine which has high durability and can be washed with ease to reuse it is disclosed. The washable air filter includes an outer cylindrical member 10; an inner cylindrical member 11; a first filter elem... | 03/15/2005 |
| 6814783 | Filtration media of porous inorganic particles Inorganic, porous particles filter a substance or substances from a flow of fluid such as a gas. The particles can be arranged into a bed to filter a substance (filtrate substance) from a fluid. The filtrate substance can collect on or within the pores of the inorga... | 11/09/2004 |
| 6602328 | Gas turbine suction air filter, a gas turbine using the same and a method for using the same A gas turbine suction air filter is provided wherein, despite a large capacity, dust is easily removed by an ultrasonic washer. A gas turbine suction air filter (1) has a box-like frame member (3) and a filter cloth (5) contained in the frame member (3). ... | 08/05/2003 |
| 6162286 | Exhaust cleaning system A main body of exhaust cleaning system 15 is arranged in a hood 8 that is connected to an exhaust duct 14 at an upper part and is opened at a bottom face. A grease filter 23 is arranged at a side plate of a main body case 18 having an inlet 19 into which ... | 12/19/2000 |
| 6102991 | Exhaust gas cleaner and exhaust gas cleaner assembly using a plurality of exhaust gas cleaners An exhaust gas cleaner includes an exhaust gas introducing member having an exhaust gas inlet port into which an exhaust gas is introduced and an exhaust gas outlet port through which the exhaust gas is discharged, an endless filter member provided across... | 08/15/2000 |
| 5902383 | Dust collection apparatus having packed tower A dust collection apparatus includes a tower main body, a filter, a rotating shaft, a rotating mechanism, and a cleaning solution. The tower main body has a suction port through which an exhaust gas containing at least one of a noxious material and dust t... | 05/11/1999 |
| 4292056 | Endless paint separating member for paint spray booths A system for removing paint from the paint-laden air extracted from a paint spray booth includes an endless paint receiving member formed from a plurality of linked channel members. Each channel member has air inlet apertures in the top surface thereof an... | 09/29/1981 |
| 4205412 | Automotive brake dust recovery unit A movable brake dust recovery unit that may be disposed adjacent an automotive shaft after the wheel has been removed therefrom, and thereafter subject the backing plate and associated brake shoe assemblies to a current of air to remove particled foreign ... | 06/03/1980 |
| 4049555 | Reusable filter apparatus Apparatus is disclosed comprising a reusable filter insertable in an enclosure having openings therein for the passage of a cleaning fluid through the filter and out of the enclosure. The enclosure may comprise a cylinder into which the filter is inserted... | 09/20/1977 |
