"The wireless music box has no imaginable commercial value. Who would pay for a message sent to nobody in particular?"
David Sarnoff, American radio pioneer ; 1921
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| Number | Title | Issue Date |
| 7753997 | Cleaning device for cleaning process gas of a reflow soldering system The present invention is directed to a cleaning device for process gases of a reflow soldering system that includes a plurality of cleaning chambers. The plurality of cleaning chambers contain a cleaning liquid for the process gas, where each of the cleaning chamber... | 07/13/2010 |
| 7189281 | Method and system for treating contaminants and odors in airborne emissions A second-generation rotating biofilter employing microorganisms in a microbiological film (biofilm) “mineralizes” contaminants, such as VOCs and odoriferous contaminants. Contaminated fluid, such as air from manufacturing processes, is directed radially outward ... | 03/13/2007 |
| 7115155 | Air filtration apparatus and aromatizer An air filtration and aromatizer apparatus which includes a housing, a motor in the housing with a fan for drawing air through an inlet toward an outlet through a pollution-collecting chamber, and an elongated hollow tubular perforated member having an upper end con... | 10/03/2006 |
| 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 |
| 6946018 | Method and apparatus for cleaning a gas A method and apparatus for cleaning a gas comprising a rotatable centrifugal cylinder having passageways for flowing a gas stream with a liquid stream through the cylinder to centrifugally remove the particulates from the gas stream with the liquid stream; turbine b... | 09/20/2005 |
| 6899750 | Method and apparatus for cleaning a gas A system and method of cleaning a gas of undesired particulate, aromas, and gases is disclosed. The invention uses a centrifugal scrubbing space to liquid wet a gas and includes a container for containing a liquid with a pump to circulate the liquid. The gas is pump... | 05/31/2005 |
| 6078846 | Calibration and compensation of robot-based gauging system The non-contact sensor employs a structured light source that emits light in a predefined planar configuration and an optical receiver for reading reflected light produced by the structured light source within a predefined field of view. A tetrahedron tar... | 06/20/2000 |
| 5908491 | Air cleaner An air cleaner for efficiently providing clean air for a structure is comprised of a housing having an intake port and an exhaust port. At least one air chamber having a liquid reservoir at its base is disposed within the housing. A fan draws air through ... | 06/01/1999 |
| 4762539 | Universal/scrubber/precipitator for scrubbing smoke A universal/scrubber/precipitator comprises at least one, or a plurality of rolls or circular cylinders concentric and rotatable in one direction about their common axis. The rolls are perforate with perforations less each in span than the span supported ... | 08/09/1988 |
| 3971641 | Gas scrubber of the wet collector type A gas scrubber of the wet collector type induces a gas flow under a negative pressure through a housing between a gas inlet and a gas outlet. The housing includes a scrubbing liquid reservoir, and means in the housing cooperating therewith to define a gas... | 07/27/1976 |