Did You Know...
...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!
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| Number | Title | Issue Date |
| 8048205 | Lint filter device and method for cleaning a lint filter device A lint filter device for an airflow in a tumble dryer, comprising an endlessly circulating element, arranged around at least two deflector elements and positioned such as to be crossed by the airflow. The circulating element has an upper edge and a lower edge and fi... | 11/01/2011 |
| 7399337 | Continuous air monitor filter changeout apparatus An apparatus and corresponding method for automatically changing out a filter cartridge in a continuous air monitor. The apparatus includes: a first container sized to hold filter cartridge replacements; a second container sized to hold used filter cartridges; a tra... | 07/15/2008 |
| 7357334 | Method and apparatus for separating a solution In a method and apparatus for separating a solution, the solution containing a target substance is atomized into a mist in an atomizer (1) to produce a mixed fluid of mist and air. In the collection of the mist from this mixed fluid, an air transmission membr... | 04/15/2008 |
| 7318848 | Dust collector for a vacuum cleaner A dust collector is disposed between an intake port and an exhaust port in a vacuum cleaner. Air flows from the intake port into the exhaust port along an airflow path in the dust collector. The dust collector includes a dust-collecting net disposed in the path, and... | 01/15/2008 |
| 7296402 | Diesel particulate filter service method A diesel particulate filter of a motor vehicle is cleaned of ash, typically using equipment already available in a service shop. The filter apparatus is disconnected from the exhaust system of a motor vehicle. The filter apparatus is reversed and reconnected to the ... | 11/20/2007 |
| 7285149 | Oil separator for vehicle air system An oil separator for use in a vehicle air system includes a recycling valve for removing coalesced oil. The recycling valve may include a piston movable in a cylinder in response to a control air pressure to open the recycling valve and thus drain coalesced oil from... | 10/23/2007 |
| 7282155 | Device and a method for filtering a fluid A device for filtering a fluid includes a fiber housing having an inlet end with at least one inlet and an outlet end with at least one outlet. The fiber housing surrounds and defines an outer bound for a plurality of fibers extending longitudinally in the fiber hou... | 10/16/2007 |
| 7258715 | Air cleaner An improved filter element for use in an electrostatic precipitation air cleaning device, the filter element including rod electrodes arranged through a stack of alternating fluted plastic sheets and plate electrodes. Successive plate electrodes are arranged to make... | 08/21/2007 |
| 7188599 | Sump for cooling package air intake housing of an agricultural machine An apparatus is configured for supplying air to a cooling package for an internal combustion engine that powers an agricultural machine. The apparatus includes an air intake housing defining an air intake opening and a sump. The sump has a wall and a port. A gating ... | 03/13/2007 |
| 7186290 | Filter system with automatic media refresh A filter system includes a source of clean filter media adjacent a channel through which fluid passes. The filter media is automatically advanced from the source to the channel and eventually to a sealed container adjacent the channel. The filter media is automatica... | 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 |
| 7052532 | High temperature nanofilter, system and method A filter, system and method is provided for filtering nanoparticles in a hot gas, namely particles about 200° C. and further particularly >about 450° C. including diesel exhaust. The filter includes filter media material composed of fibro... | 05/30/2006 |
| 6994522 | Fan blade A fan blade includes a shaft base and plural wind guiders formed integral with the shaft base. The wind guiders are fixed spaced apart equidistantly on the peripheral edge of the shaft base. Each wind guider is formed integral with one or more than one netted portio... | 02/07/2006 |
| 6966935 | Filter cleaner for wet/dry vacuum A filter cleaner for wet/dry vacuum is provided for effectively cleaning filter cartridges employed for use in a class of vacuum cleaners commonly referred to as “wet/dry vacs.” The filter cleaner apparatus includes a cylindrical catch tank supported by a base. ... | 11/22/2005 |
| 6863715 | Method for cleaning air and apparatus therefor, and method for humidifying air and apparatus therefor A method for cleaning air and an air cleaner utilizing it are disclosed, by which the air cleaner can be made smaller than the conventional air cleaners when the performances are the same. According to the method of the invention, a filter formed on peripheral porti... | 03/08/2005 |
| 6858056 | Oil separator An oil separator includes a casing 1 and a rotor 2, said rotor being arranged rotatably within said casing and having a flow chamber 3 through which oil-laden air 4 can pass, with porous material being arranged in the flow chamber 3 | 02/22/2005 |
| 6846349 | Air filter and method of using same An air filter suitable for use on an engine is provided. The air filter includes a hollow filter body into which is positioned a filter installation unit capable of turning within the filter body and constructed to receive a filtering filter. A main air flow opening... | 01/25/2005 |
| 6843834 | Self-renewing air filter The replacement of filters for Heating, Ventilating, and Air Conditioning (HVAC) is often time-consuming and labor-intensive. Organizations having responsibility for many apartment or dormitory units can spend a significant fraction of their man-hours replacing such... | 01/18/2005 |
| 6632269 | Furnace filter assembly A furnace filter assembly for removing dirt and contamination from air entering an existing furnace is installable on the existing furnace without the need for modification thereof, and includes a filter frame, a supply roll for supporting a continuous le... | 10/14/2003 |
| 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 |
| 6517612 | Centrifugal filtration device This invention is directed to a continuously cleanable, high performance filtration apparatus and a method for using the apparatus. The apparatus is a radial inflow centrifugal filtration device, which includes a filter element located within a chamber an... | 02/11/2003 |
| 6402822 | Furnace filter system A furnace filter system or kit for installation on an existing furnace duct includes upper and lower supply roll supports respectively mountable on the top and bottom walls of the duct adjacent one side wall of the duct for removably receiving a supply ro... | 06/11/2002 |
| 6391073 | Air cleaner An air cleaner includes a cylindrical cleaning filter, and a case rotatably receiving the cleaning filter therein. A dust-removing brush is disposed to contact with a filter portion of the cleaning filter, and a manipulating device coupled to the cleaning... | 05/21/2002 |
| 6368390 | Automatic filter rotating device An improved dust collector having a housing that encloses clean-air and dirty-air chambers with an elongate non-vertical annular hollow filter with an end accommodating the flow of clean air positioned in the housing, and a nozzle connected to an air sour... | 04/09/2002 |
| 6365119 | Method of operating a catalytic converter Constantly high efficiency of a catalytic converter can only be ensured when the configuration is maintained relatively free of particulate matter. A screen is disposed on the inflow side of the catalytic converter, which continuously or discontinuously t... | 04/02/2002 |
| 6277176 | Moving filter device having filter elements with flow passages and method of filtering air There is provided an air delivery device and method of moving and filtering air. The air delivery device comprises a housing having an air inlet and an air outlet. Between the air inlet and the air outlet is located an air delivery fan having at least two... | 08/21/2001 |
| 6217637 | Multiple stage high efficiency rotary filter system An apparatus and method for filtration of particulate matter in fluid streams. A unique high efficiency, two element filter embodying an enclosure containing a tandem rotary disk and drum filter mounted on a common shaft is described. A method of operatio... | 04/17/2001 |
| 6036750 | Separator with rotating filter A secondary separator stage for separating material conveyed in a fluid stream. A material collecting receptacle includes an inlet conduit and an exhaust vent. The stream of fluid with materials flow via the inlet conduit into the receptacle. An exhauster... | 03/14/2000 |
| 5906752 | Self-cleaning belt filter with edge sealing means and method A self-cleaning filter apparatus for use in removing particulate matter from a transport fluid, such as air, which includes a housing having a pair of spaced pulleys over which an endless filter belt is positioned to present two generally straight filter ... | 05/25/1999 |
| 5795131 | Fan air cleaner A ceiling fan for cleaning air in a room wherein each blade of the ceiling fan has a cavity open to the top and bottom surfaces of each fan blade and a filter unit in each of the cavities but within the confines of the fan blade such that, when the ceilin... | 08/18/1998 |
| 5785936 | Simultaneous control of SO2, NOx, HCl, and particulates by in-furnace high-temperature sorbent injection and particulate removal A method for the simultaneous control of SO2, NOx, HCl, air toxins, metal fumes, and particulate emissions (ash, soot, metal oxides) from fossil fuel burning combustion processes is provided by injecting a sorbent upstream of a filte... | 07/28/1998 |
| 5681364 | Rotating element fume collection apparatus An air filtering, fume collecting mechanism is disclosed in which the contaminated air is drawn by a fan through a filter element which spins transversely across the flow of air being drawn by the fan. The filter element may be a disc removeably mounted o... | 10/28/1997 |
| 5679136 | Reduced fluff drum filter enclosure and method thereof A rotary drum filter having a reduced amount of fluff in the enclosure during operation. The volume of the enclosure and the mass flow rate of fluff coming into the enclosure are taken into account when determining a proper speed for the rotary drum so th... | 10/21/1997 |
| 5677193 | Method and apparatus for processing a test sample to concentrate an analyte in the sample from a solvent in the sample A method of processing a test sample to concentrate an analyte in the sample from a solvent in the sample includes: a) boiling the test sample containing the analyte and solvent in a boiling chamber to a temperature greater than or equal to the solvent bo... | 10/14/1997 |
| 5560835 | Pleated belt filter with suction means to remove debris A self-cleaning filter apparatus for use in removing particulate matter from a transport fluid, such as air, which includes a housing having a pair of spaced pulleys over which an endless filter belt is positioned to present two generally straight filter ... | 10/01/1996 |
| 5536298 | Method of treating fine particle dust in manufacturing process of semiconductor elements and apparatus therefor In a method of treating a fine particle dust in a manufacturing process of semiconductor elements wherein the fine particle dust is separated and collected from an air which includes the fine particle dust produced from a source of generating the fine par... | 07/16/1996 |
| 5529593 | Filter screen assembly for use with an air intake unit A filter screen assembly for use with an air intake unit, the air intake unit having a top, a bottom and at least one side wall. A flexible screen is provided as a roll wound onto a spindle. The spindle is held within a vertically extending container secu... | 06/25/1996 |
| 5514197 | Air filter device for an air-conditioning apparatus An air filter device for an air-conditioning apparatus includes a mounting frame unit, an axle mounted rotatably to the mounting frame unit, and a plurality of blade-like frames mounted axially on and projecting radially from a peripheral surface of the a... | 05/07/1996 |
| 5474598 | Multi-line drum filter A rotary drum filter for multiple lines. The filter includes distinct cells for each production line so that fluff or particulate may be recirculated within its own production line. A balancing fan is included which provides static pressure from selected ... | 12/12/1995 |
| 5411579 | Auto filter curb This invention relates to a method and apparatus for the rooftop support of an airconditioning unit and for the automatic continuous cleaning of the treated air that circulates through the supported air conditioning unit, thus an Auto Filter Curb. The uni... | 05/02/1995 |
