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| Number | Title | Issue Date |
| 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 |
| 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 |
| 6849107 | Air filtration system A new and improved air purifying apparatus having a housing that is adapted to be mounted in-line with an air duct, such as a return air duct of an air-conditioning system. The housing is designed for easy installation without modifying the existing air-conditioning... | 02/01/2005 |
| 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 |
| 6063170 | Air filtration system This invention relates to an air filtration system including four principle segments interconnected in series as one unit through which contaminated air is passed. The first segment includes a prefilter for the removal of dust particles; the second segmen... | 05/16/2000 |
| 4089915 | Self-sterilizing humidifier A self-sterilizing humidifier for air to be breathed, of the type having endless porous media driven to be progressively immersed in a receptacle. Means are shown for periodically providing throughout the effective volume of water in the receptacle heated... | 05/16/1978 |
| 3951625 | Air conditioning apparatus Air conditioning apparatus ventilates room air with environmental air after the environmental air has been filtered, heated and humidified to appropriate levels. Environmental air is drawn into an intake duct, is passed successively through an air filter,... | 04/20/1976 |
