Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 7537628 | Exhaust trap device Three exhaust trap units are arranged in series in an exhaust trap device for trapping substances solidified from exhaust gas and exhaust gas paths are formed inside the exhaust trap units. One or more collision plates are placed in each trap unit. The collision pla... | 05/26/2009 |
| 7377954 | Performance air filtration cartridge An air filtration cartridge has annular filter media having a hollow interior and extending axially between first and second distally opposite end caps. The first end cap is an outlet end cap having flow straightening structure integrally formed therewith and spanni... | 05/27/2008 |
| 7314495 | Process and device for eliminating the particles contained in a stream of fluid The present invention relates to a process and a device for eliminating particles from a stream of fluid, having a channel for turbulent flow of the fluid and a series of objects placed along the channel. ... | 01/01/2008 |
| 7291196 | Filamentary pad for improved mist elimination and mass transfer An apparatus and method of making a filamentary pad for improved mist elimination and mass transfer comprising a plurality of layers of mesh, each layer of mesh having a plurality of mesh openings defined therein. A plurality of preferential gas flow openings, each ... | 11/06/2007 |
| 7265669 | Networks with sensors for air safety and security Airborne particles are impacted on a collection surface, analyzed, and then the collection surface is regenerated. Thus, the same collection surface can be used in numerous cycles. The analysis can be focused on one or more properties of interest, such as the concen... | 09/04/2007 |
| 7261008 | Air sampler An air sampler having a fan; an air inlet tube; a main body having a cyclonic cup, a stripping column and a demister; and fluidic circuitry for inputting fluids to the main body and the air inlet tube, and for outputting fluids from the main body. Air flow through t... | 08/28/2007 |
| 7258716 | Microimpactor system having optimized impactor spacing A microimpactor device for separating particles from a fluid stream includes a plurality of microimpactor in a two-dimensional array. Individual microimpactors are separated by a distance of about 3 to 20 times the microimpactor width. This spacing provides a device... | 08/21/2007 |
| 7166140 | High capture efficiency baffle A baffle is disclosed which comprises a plurality of substantially S-shaped baffle members and a frame configured to hold the baffle members substantially parallel to each other. The baffle is configured to separate one or more entrained substances from an air strea... | 01/23/2007 |
| 7141095 | Precursor material delivery system for atomic layer deposition A precursor delivery system includes a flow path from a precursor container to a reaction space of a thin film deposition system, such as an atomic layer deposition (ALD) reactor. A staging volume is preferably established between the precursor container and the rea... | 11/28/2006 |
| 7077887 | Low pressure impact separator for separation, classification and collection of ultra-fine particles Impact type gas-particle separation is applied to ultra-fine particles by judiciously altering the aerodynamic drag on the particles with respect to their inertia by operation at sub-atmospheric pressures. An impact separator has a housing having a channel in which ... | 07/18/2006 |
| 6936086 | High conductivity particle filter A high conductivity particle filter provides a flow path to subject a fluid stream to a series of turns. The turns require an abrupt directional change for the fluid stream. Traps are positioned in proximity to the turns to capture particles, which have greater iner... | 08/30/2005 |
| 6929670 | Sand separating apparatus for a thermal sand removal oven An apparatus for the separation of sand from an air stream in a thermal sand removal oven is disclosed. The preferred embodiment of the apparatus comprises a plurality of members comprising two planar members joined to form “V” shaped members. The vertex of the ... | 08/16/2005 |
| 6875257 | Particle filter for microelectromechanical systems A particle filter for microelectromechanical systems is provided that includes a particle trap formed on a substrate material. The particle trap includes an array of multidimensional geometric structures in an adjacent relationship. The geometric structures further ... | 04/05/2005 |
| 6840975 | Grease filter The grease filter is made with components that are secured together about the periphery of the filter by a seam with smooth surfaces. In one embodiment, the filter is constructed of three components, namely, a pair of plates and a rectagular or square frame. The per... | 01/11/2005 |
| 6830602 | Device for a ventilation system Device for extraction of greases in aerosol form from an air flow in a ventilation system, which device includes a number of intermediate plates which define both an increased surface of deposition for the greases, and an extended flow path in the ventilation system... | 12/14/2004 |
| 6790397 | Filter apparatus and methods The invention provides a filter apparatus for removing air entrained particles comprising a pleated filter media. A first media member has a plurality of alternating upstream and downstream folds and a wall connecting the folds. A pair of slits forms an aperture and... | 09/14/2004 |
| 6572687 | Gas dryer A gas dryer particularly useful for natural gas transmission lines has a sump vessel including a splash plate for intercepting incoming gas, a lower region for collecting water removed from the gas, at least one tower or other vessel for holding desiccant... | 06/03/2003 |
| 6224654 | Method for enhancement of duct removal out of chimney gases A method of removing dust from dust laden gases said method including the sequential steps of: (1) passing a flow of gases laden with dust particles, at a selected first gas stream velocity through a first dust removing mechanism capable of creating multi... | 05/01/2001 |
| 6193774 | Reflow solder convection oven with a passive gas decontamination subsystem A reflow solder convection oven with a passive gas decontamination subsystem. This subsystem includes an intake duct in fluid communication with the gas outtake of a heating zone of the oven, at least one decontamination duct connected on one end to the i... | 02/27/2001 |
| 6156087 | Dust collection system A dust collection system includes a frame defining an opening through which a particulate material is inserted; a plurality of hollow supports extending across the opening; at least one plate extending along a length of each of the plurality of hollow sup... | 12/05/2000 |
| 6135367 | Atomizing boards with asymmetrically distributed atomizing holes An atomizing board includes a board surrounded by a peripheral frame that is configured to allow stacking of two atomizing boards. The board includes a number of atomizing holes defined therein. A periphery that defines each atomizing hole includes an ann... | 10/24/2000 |
| 6120573 | Micromachined teardrop-shaped virtual impactor A separation plate (10) includes a first surface (10a) and an opposing second surface. A plurality of teardrop-shaped virtual impactor projections (12) are provided on the first surface, preferably in a plurality of rows (13a, 13b, 13c). Each projection i... | 09/19/2000 |
| 6110247 | Micromachined impactor pillars A plurality of micropillars (2) arranged in a plurality of rows (4, 6, 8) are provided. When a particle-laden fluid stream is caused to flow through the micropillars, at least a portion of the particles impacts and becomes deposited on the micropillars' s... | 08/29/2000 |
| 6101886 | Multi-stage sampler concentrator Atmospheric Samplers are disclosed using aerogel filter material. The samplers include one or more cascaded impact sample stations with discs of aerogel as the targets. Ambient air carrying particulate matter is introduced into the sampler and the particl... | 08/15/2000 |
| 6063165 | Process and device for eliminating the particles contained in a stream of fluid The present invention relates to a process and a device for eliminating particles from a stream of fluid, having a channel for turbulent flow of the fluid and a series of objects placed along the channel.... | 05/16/2000 |
| 6048376 | Combination baffle and filter element system for removing oil from an oil/gas mixture A separator tank for removing oil from a gas/oil mixture includes a lower chamber for collecting the oil removed from the gas/oil mixture, an intermediate chamber overlying the lower chamber and an upper chamber overlying the intermediate chamber. The sep... | 04/11/2000 |
| 6022392 | Droplet separator A droplet separator including a plurality of droplet separating members configured for the formation of packs which are disposed at a supporting structure. The packs are connected to the supporting structure in an upwardly tiltable manner. Accordingly, th... | 02/08/2000 |
| 5928426 | Method and apparatus for treating exhaust gases from CVD, PECVD or plasma etch reactors A method and apparatus for removing gas species which can be deposited thermally from a semiconductor process exhaust gas is provided. To treat the exhaust gas, an exhaust gas reactor comprising an artificial substrate which is heated is used. The artific... | 07/27/1999 |
| 5912368 | Air filter assembly for automotive fuel vapor recovery system In a vehicle with an internal combustion engine and a fuel vapor recovery system including a carbon canister connected to the fuel tank for collecting fuel vapors from the fuel tank as the tank is being refilled, an air filtering apparatus is provided to ... | 06/15/1999 |
| 5882383 | Gas drying apparatus Apparatus for drying flowing gas includes a generally cylindrical vessel having a gas inlet and a gas outlet, two perforated plates of different metals in contact with each other transverse the interior of the vessel, and a third perforated plate downstre... | 03/16/1999 |
| 5753013 | Gas drying apparatus and method Apparatus for drying flowing gas includes a generally cylindrical vessel having a gas inlet and a gas outlet, two perforated plates of different metals in contact with each other transverse the interior of the vessel, and a third perforated plate downstre... | 05/19/1998 |
| 5690763 | Integrated chemical processing apparatus and processes for the preparation thereof An integral structure is provided for chemical processing and manufacture, in which a plurality of laminae are joined together and having inlet and outlet ports connected by a three dimensionally tortuous channel. Chemicals are introduced through the inle... | 11/25/1997 |
| 5626651 | Method and apparatus for removing suspended fine particles from gases and liquids A method of removing particulates from a gas stream involves introducing the gas stream in a turbulent flow condition into and through a flow passage situated over spaced surfaces defining a plurality of stagnant, turbulent-free regions of gas in which th... | 05/06/1997 |
| 5584901 | Dispersed phase separator A device for separating particulate matter from a fluid in which such particles are dispersed by causing the fluid to flow longitudinally through a conduit of uniform cross-section and in which a plurality of elements are disposed, with the first of the e... | 12/17/1996 |
| 5534328 | Integrated chemical processing apparatus and processes for the preparation thereof An integral structure is provided for chemical processing and manufacture, in which a plurality of laminae are joined together and having inlet and outlet ports connected by a three dimensionally tortuous channel. Chemicals are introduced through the inle... | 07/09/1996 |
| 5512252 | Dissipator for flue gas desulfurization system A dissipator for percolating a mixture of flue gases and powdered lime through a body of water to remove SO2 from the flue gases includes an elongate tubular body having first and second ends. The first end of the tubular body has an inlet thro... | 04/30/1996 |
| 5487769 | Integral apparatus for separating lubricant from a hot compressed gas and for cooling the separated lubricant An integral separator and cooling apparatus is provided for removing a lubricant from a heated, compressed lubricant and gas mixture, and for cooling the separated lubricant. The apparatus includes a lubricant reservoir for containing a liquid lubricant. ... | 01/30/1996 |
| 5484575 | Catalytic converter for the catalytic treatment of exhaust gas The catalytic converter has a casing with an inlet and an outlet and a gas-permeable catalyst element which is arranged in the casing and has an exhaust gas entry surface. A guide surface which faces the orifice of the inlet, is a distance away from its e... | 01/16/1996 |
| 5407456 | Exhaust gas purifying device for vehicles An exhaust fume purifying device includes a separator for receiving exhaust fumes and cooling water from the engine of a vehicle to mix the exhaust fumes and water so as to dissolve the toxic component of the exhaust fumes and allow cleaned gas separated ... | 04/18/1995 |
| 5320652 | Steam separating apparatus A liquid-vapor separator for two-phase fluids in general and specifically a steam-water separator in a steam drum of a steam generator includes axial or radial spinner blades to create a centrifugal motion which causes liquid to be forced outward against ... | 06/14/1994 |
