Did You Know...
...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 7767003 | Removal of contaminants from a contaminated gas or vapour stream A method of removing contaminants from a contaminated gas or vapor stream, which method includes passing a contaminated gas or vapor stream through a bed of curled separating media linearly in an upward direction at a linear velocity of up to 6 m/s; allowing a conta... | 08/03/2010 |
| 7357831 | Method and apparatus for controlling humidity and mold An apparatus for reducing a relative humidity of air inside an enclosed space includes a portable outside air heat exchanger unit having a fan operative to create an air stream by drawing outside air from an intake and discharging the air stream through an outlet in... | 04/15/2008 |
| 7351273 | Apparatus and method for separating dust constituents out of an explosive dust-air mixture A method and an apparatus (10) for separating dust constituents out of an explosive dust-air mixture which is passed through a filter housing (26) with filter elements having filter surfaces use a dust container (64), which can be connected in a... | 04/01/2008 |
| 7332007 | Dusting device with multiple stream nozzles A dedusting device 1 with a demister 15 advantageously arranged standing obliquely has a very compact construction because sufficient moistening or wetting of dust-containing crude air 24 is possible through the use of intensively acting multipl... | 02/19/2008 |
| 7329308 | Air handling and chemical filtration system and method The present invention relates to systems and methods for controlling humidity and temperature in gases or air streams used in semiconductor processing systems. These systems and methods can be used in combination with systems and methods for contaminant detection an... | 02/12/2008 |
| 7238332 | Material and process for the filtration of nitric acid and NOfrom streams of air A material for filtering NO2 and nitric acid vapors from air over a wide range of humidities and temperatures including a porous hydrophobic substrate and an amine is provided. ... | 07/03/2007 |
| 7160460 | System and method for treating wastewater using coir filter A wastewater treatment system includes a septic tank having a discharge in flow communication with one or more biofilter containers having filter media therein. Wastewater or effluent from the septic tank is allowed to contact the filter media and each container inc... | 01/09/2007 |
| 7152430 | Method of separating COfrom hydrocarbon gas A method of separating CO2 from a hydrocarbon gas inlet stream that is within predetermined pressure and temperature ranges including the steps of subjecting the inlet stream to fractional distillation providing a bottom product stream and a distillation ... | 12/26/2006 |
| 7125437 | Method and apparatus for enhanced particle collection efficiency A method and apparatus for particle collection (30) that is characterized by co-aerosolizing fluids (62) into an air stream (34) containing the particles to be analyzed to significantly enhance their collection and identification efficiency is p... | 10/24/2006 |
| 7124605 | Membrane/distillation method and system for extracting CO2 from hydrocarbon gas A method of separating CO2 from a hydrocarbon gas inlet stream that is within predetermined pressure and temperature ranges, including the steps of subjecting the inlet stream to fractional distillation providing a CO2 bottom product stream and... | 10/24/2006 |
| 7108737 | Method for the purification of corrosive gases The present invention relates to a novel process for the preparation of high-purity chemicals with an extremely low particle count, such as ammonia gas, hydrogen fluoride and hydrogen chloride, which are also used as aqueous solutions in semiconductor technology the... | 09/19/2006 |
| 7025803 | Methane recovery process A system and a process for recovering high concentrations of methane from crude natural gas and solid waste landfill exhaust gas uses a sequential combination of a pressure swing adsorber unit operation to remove volatile organic compounds from the crude feed gas mi... | 04/11/2006 |
| 7025809 | Dual-type air purification system An air purification system for treating pollutants in a gas stream. The air purification system includes a housing with a plurality of nozzles, an acidic water supply device and an alkaline water supply device. The housing introduces the gas stream. The acidic water... | 04/11/2006 |
| 6955715 | Water-based air filter system A water-based air filter system for recycling and cleaning the air found in industrial plants, in particular. The water-based air filter system includes a support base; and also includes a tank being disposed in the support base and being at least partially-filled w... | 10/18/2005 |
| 6923003 | Power generating apparatus having combustion turbine inlet air flow temperature sensor for sensing a drybulb temperature and related methods A power generating apparatus 20′ includes an electrical generator 22′ and a combustion turbine 24′ for driving the electrical generator. The combustion turbine 24′ may have a combustion turbine air inlet 30′ for receiving... | 08/02/2005 |
| 6890372 | Denuder assembly for collection and removal of soluble atmospheric gases A denuder assembly is adapted for the collection and removal of a gaseous analyte from a sample gas. The denuder includes a housing including an internal cavity, a sample gas inlet fluidly coupled with a sample gas source, a denuder liquid inlet fluidly coupled with... | 05/10/2005 |
| 6863716 | Trap-type air purification system An air purification system which is well-suited to removing particles from outside air as the air flows into a cleanroom used in the fabrication of semiconductor integrated circuits. A housing provides at least one spray nozzle for spraying fine mist water droplets.... | 03/08/2005 |
| 6846348 | Compressor/drier system and absorber therefor A system for delivering dry compressed gas is provided, the gas being separated from any entrained liquid lubricant and then passed through a moisture absorber column to interact with a moisture-removing fluid. The fluid is a liquid lubricant or is maintained in a s... | 01/25/2005 |
| 6699369 | Apparatus and method for thermal desalination based on pressurized formation and evaporation of droplets A method for removing dissolved solids, particularly salts, from water. An apparatus for performing the inventive method is disclosed. The aqueous solution to be treated, for example sea water, is atomized using special non-pneumatic nozzles, and sprayed ... | 03/02/2004 |
| 6645447 | Devices and method for chemical reactive filtration A gas contaminant is filtered using fibers having internal cavities containing a chemically reactive oxidizing agent, an acid or base, a coordinating agent, a complexing agent, or a deliquescing agent. Where the contaminant is basic, the reagent is prefer... | 11/11/2003 |
| 6645273 | Method for removing impurity contents in the air A method for removing impurity substances in air flowing in a flow passage includes filtering the air in a first filter for removing solid substances; cooling the air in a first cooler to not higher than its dew-point temperature; capturing gaseous substa... | 11/11/2003 |
| 6627166 | Gas filtering device The invention concerns a device for filtering gas comprising a microporous or microfibrous adsorbent filter (6) and means for forcing an air flow between an exhaust hood (2) and outlet duct (3) for the filtered air. The invention is characterized in that ... | 09/30/2003 |
| 6623715 | Complex shaped fiber for particle and molecular filtration An ultra-efficient multilobal cross-sectioned fiber filter for chemical contaminant filtering applications is described. An absorptive chemically reactive reagent, preferably an acid or base and in liquid or an adsorptive chemically reactive reagent (an a... | 09/23/2003 |
| 6391093 | Welding filtration system A weld chamber has an air intake and an exhaust or evacuating ductwork for evacuating gases and other particles from the welding chamber. The evacuating ductwork is connected to a vacuum source to remove gases and by products from the weld chamber during ... | 05/21/2002 |
| 6375724 | Humidifilter The invention is a humidification and filtration mask having an open cell foam reservoir attached to the facial or inner surface of a paper filtration mask. The reservoir provides for evenly wetting the paper mask by capillary action, after being charged ... | 04/23/2002 |
| 6336958 | Method for purifying gas loaded with dust A Method for purifying gas loaded with dust particles of various sizes, which method includes the following steps: (a) the gas loaded with dust particles is subjected to wet gas scrubbing at or above the dew point, during which operation any acid gaseous compo... | 01/08/2002 |
| 6312504 | Rotary washer with obliquely positioned demister For purifying dust-containing air, particularly in underground mining and tunnel construction, a dust separator 1 in the form of a rotary washer 1 is proposed. The drive 5 of said rotary washer 1 is equipped with a gear unit 10 in order to enable long-ter... | 11/06/2001 |
| 6248155 | Combination humidifier and air purifier A humidifier/air purifier including a housing defining a water reservoir, an air inlet opening and an air outlet opening; a generally V-shaped wicking element in fluid communication with the reservoir; an air filter with a generally V-shaped air filter me... | 06/19/2001 |
| 6174349 | Continuous effluent gas scrubber system and method A method and apparatus is provided which continuously filters scrubbed gases prior to emission to the atmosphere. In particular, the method and apparatus can continuously scrub the effluent stream from a chemical vapor deposition process, such as the proc... | 01/16/2001 |
| 6068686 | Scrubber system and method of removing pollutants from a fluid A scrubber for removing pollutants from a fluid and having an inlet for receiving the fluid and an outlet for emitting the fluid, the scrubber comprising a first scrubber coupled with the fluid intermediate the inlet and the outlet for removing a first me... | 05/30/2000 |
| 5935299 | Apparatus and method of spray dryer/bag filter using circulating shield air A spray dryer/bag filter apparatus for removing flue gas from an incinerator, which is structurized to re-circulate the purified gas as the shield air for protecting the slurry spraying nozzle thermally from hot gas without using any additional blower to ... | 08/10/1999 |
| 5893943 | Method and apparatus for decreased undesired particle emissions in gas streams The present invention discloses a process for removing undesired particles from a gas stream including the steps of contacting a composition containing an adhesive with the gas stream; collecting the undesired particles and adhesive on a collection surfac... | 04/13/1999 |
| 5855649 | Liquid additives for particulate emissions control The present invention discloses a process for removing undesired particles from a gas stream including the steps of contacting a composition containing an adhesive with the gas stream; collecting the undesired particles and adhesive on a collection surfac... | 01/05/1999 |
| 5846299 | Recovering water soluble, volatile, organic compounds from bakery and other plant emissions Recovery of ethanol from the exhaust stacks of a bread-baking oven is achieved by passing the stack emissions through an adiabatic humidifier where the emissions are humidified to near saturation. The unevaporated water content of the humidifier is collec... | 12/08/1998 |
| 5843214 | Condensable vapor capture and recovery in industrial applications An apparatus for extracting condensable materials from exhaust gases which are produced by combustion. In a steam injected gas turbine driven powerplant, water is extracted from the exhaust gasses and returned to the cycle for steam raising and injection ... | 12/01/1998 |
| 5833736 | Method for removing undesired particles from gas streams The present invention discloses a process for removing undesired particles from a gas stream including the steps of contacting a composition containing an adhesive with the gas stream; collecting the undesired particles and adhesive on a collection surfac... | 11/10/1998 |
| 5743939 | Waste gas processing apparatus and method for semiconductor fabricating equipment The waste gas processing apparatus and method thereof for semiconductor device fabricating equipment includes a water spraying chamber, and an exhaust tube. A demister and an external gas introducer, for causing external gas to enter the exhaust tube adja... | 04/28/1998 |
| 5725635 | Method to remove organic halogenated molecules from gaseous currents and relative plant Method to remove organic halogenated molecules from gaseous currents arriving as a residue of industrial working processes or not, the gaseous current being delivered into a reactor (16) containing a fluid bed consisting of at least one solid adsorbent el... | 03/10/1998 |
| 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 |
| 5618333 | Method for volatile organic compound recycling In the method of the instant invention, volatile organic compounds (VOCs) liberated in the course of solvent-based painting of a workpiece, are recovered. The atmosphere within a closed spray-booth is maintained at a fixed humidity such that vaporized wat... | 04/08/1997 |
