Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 7171986 | Airflow converger An airflow converger belonging to the field of auto parts, that was developed to improve air supply conditions and performance of internal combustion engines includes: a tubular body equipped at an upper end with an air inlet, having parallel fins that direct airflo... | 02/06/2007 |
| 6387156 | Filtration system for collecting and filtering particles and fumes from ablative imaging plates A filtration system, includes a filtration unit and processor. The filtration unit operates to filter ablative particles generated by thermal imaging of media and transmits a signal corresponding to a parameter, such as a pressure or pressure differential... | 05/14/2002 |
| 5683495 | Device for the filtration of a flow of air, in particular for the heating and/or air conditioning plant in a motor vehicle A device for the filtration of an airstream, in particular for a heating and/or air conditioning installation in a motor vehicle. The device provides, on one hand, a filtration that includes as much as possible of the entire airstream, while, on the other... | 11/04/1997 |
| 5660605 | Window fan A window fan incorporating a filter. The fan has a low, flat profile for fitting in a window while occupying limited viewing area of the window. The fan includes laterally projecting extensions for sealing a gap which might otherwise exist at the right an... | 08/26/1997 |
| 5472463 | Pressure side integrated air filter and filtering networks for engines A pressure side integrated air filter assembly for a turbocharged engine includes an air filter carrier which is designed and arranged to receive an air filter element and which is adapted to mount to the intake manifold of the turbocharged engine. The ai... | 12/05/1995 |
| 4925460 | Chabazite for gas separation An improved adsorbent for gas separation comprising a lithium exchanged chabazite having a Si/Al ratio between 2.1 and 2.8 wherein at least 65% of the exchangeable ion capacity is in the lithium form.... | 05/15/1990 |
| 4887936 | Cyclone separator with accelerator plate for pneumatic conveyor A cyclone separator (20) for a pneumatic grain conveyor (10) includes a filter assembly (60) mounted in the upper end thereof. The filter assembly (60) includes a cylindrical casing (62) extending into the separator (20) with a screen (70) therein and an ... | 12/19/1989 |
| 4671810 | Arrangement for the filtering of a supply air flow, especially for motor vehicles For the filtering of supply air, especially in the case of motor vehicles, a filter that is divided into two parts is arranged inside a housing. The two parts of the filter can be swivelled apart around swivel shafts arranged in their end areas so that, w... | 06/09/1987 |
| 4433987 | Air filtration device Apparatus for filtering air laden with dust or other particulate matter including: a filtering area, an air velocity dissipation zone above the filtering area, a lower tube sheet mounted above the dissipation zone and forming a partial boundary therewith,... | 02/28/1984 |
| 4373940 | Air precleaner for internal combustion engine An air precleaning device for use in connection with clean air consumption and ventilation purposes such as with internal combustion engines, compressors, and the like and for ventilation such as in a vehicle cab or in clean air quarters generally, the pr... | 02/15/1983 |
| 4312645 | Separator assembly A filtering assembly for an air intake duct for a turbine device for normally removing particulate matter entrained in the air being introduced to the turbine device through the air duct. The improved filtering assembly comprises a filter element for remo... | 01/26/1982 |
| 4265647 | Air prefilter An air prefilter is disclosed for use with internal combustion engine air filters of the type having replaceable filter elements. The prefilter has a perforated sleeve connected between the usual intake openings and the filter element of the conventional ... | 05/05/1981 |
| 4231769 | Filtered ventilating system A filtered ventilating system for a cooking unit incorporates a hood emplaceable above a cooking unit. An exhaust stack extends from the hood for removing cooking fumes captured by the hood. A barrier wall divides the interior of the hood into inlet and o... | 11/04/1980 |
| 4227903 | Filter cell apparatus A cell filter apparatus of the bag or stocking type having a housing is disclosed. A gas deflector and boundary wall between a raw gas duct and a dust chamber upstream from the filter cells form a tapering duct having an outlet passage for coarse dust par... | 10/14/1980 |
| 4213770 | Engine emission pollutant separator A pollutant separator having a cooling coil and a filter includes a scrubber device. The scrubber has a tube with holes in the walls thereof for the passage of fluid to and from a closed collection chamber. A series of spring biased balls within the tube ... | 07/22/1980 |
| 4133658 | Industrial dust collection system and apparatus An industrial dust collection system for collecting dust created by operation of a machine comprising dust collecting and storage means remote from the machine; a cyclone chamber means associated with the dust collecting and storage means for receiving du... | 01/09/1979 |
| 3992177 | Multi-action particle separator A vertically oriented, sheet metal enclosure includes a frusto-pyramidal lower section forming a hopper for separated particulate matter from an air stream which enters a middle section from a downwardly and inwardly inclined inlet duct fixed to one side ... | 11/16/1976 |
