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| Number | Title | Issue Date |
| 8152913 | Dust collecting apparatus for compressing dust A dust collecting apparatus for compressing dust is provided. The dust collecting apparatus for compressing dust may include a centrifugal dust separating device having a dust outlet, a compressing device formed inside the dust receptacle, and including a compressin... | 04/10/2012 |
| 7892337 | Operating room smoke evacuator with integrated vacuum motor and filter A service head for use in connection with a medical procedure in an enclosure such as an operating room. In one aspect, a service head comprises a filter adapted to be punctured by a timing pin in connection with the determination and/or communication of filter life... | 02/22/2011 |
| 7837773 | Air treatment system An air treatment system includes features for maximizing efficiency and effectiveness. In one embodiment, a sensor air passage utilizes a low pressure region created by the blower to draw air through the passage. In another embodiment, a filter frame includes a plur... | 11/23/2010 |
| 7390346 | System and apparatus for producing primary standard gas mixtures Provided is a novel system and apparatus for producing primary standard gas mixtures. The system includes providing a gas permeation device having a constant diffusion rate into a temperature controlled enclosure; connecting a supply source of a component to the per... | 06/24/2008 |
| 7364610 | Air filter sensor The present invention is directed towards a sensor including, inter alia, a body having first and second spaced-apart apertures, the first aperture having a shape producing an audible noise upon a fluid passing therethrough; a piston positioned within the body; and ... | 04/29/2008 |
| 7306661 | Service recording device for a filter of an extraction hood A service recording device for a filter is particularly suited for an extraction hood with an air flow device with a variable volumetric flow. The service recording device has a counter device with a variable counting speed. The counting speed of the air flow device... | 12/11/2007 |
| 7276104 | Installation for producing products using a fluid An apparatus and method for producing products using a fluid, which enables one to control the quality of the fluid from the point of production to the point of use, monitored on a microbiological, physical, and chemical basis. At least one sensor for the acquisitio... | 10/02/2007 |
| 7261762 | Technique for detecting and predicting air filter condition A method and system for detecting and predicting air filter condition for an air handling system operates by determining a system resistance to air flow. The system resistance is utilized to determine a detection statistic indicative of current filter condition and ... | 08/28/2007 |
| 7253743 | Techniques for identifying when to change an air filter A method is performed in an electronic system having (i) hardware configured to perform electronic operations and (ii) an air filter configured to remove contamination from an air stream that cools the hardware. The method, which identifies when to change an air fil... | 08/07/2007 |
| 7244290 | Electrostatic room air cleaner An electrostatic room air cleaner includes a housing having a given profile and a plurality of electrostatic precipitation collector units arrayed in the housing with a common fan to circulate room air through the plurality of electrostatic precipitation collector u... | 07/17/2007 |
| 7166259 | Air purifier with control sensors An air purifier (10) held in a housing (12, 14) with an ambient air inlet (16) and an air outlet (18) and defining an airflow path therethrough for treating ambient air, a filter (disposed in the airflow path and having an air permeable m... | 01/23/2007 |
| 7156332 | Product containment apparatus Self contained filter backpurge systems useful for totally enclosed processing mills and for clean in place (CIP) processing material processing mills. ... | 01/02/2007 |
| 7153347 | Device and method for controlling air cleaning operation of air conditioner The present invention provides device and method for controlling air cleaning operation, in which an air conditioner with an air cleaner is made to clean air effectively proper to different pollutants. The device includes a memory having a plurality of operation mod... | 12/26/2006 |
| 7118613 | Method and apparatus for cooling the components of a control unit of an emission abatement assembly A control unit for controlling operation of a fuel-fired burner includes a housing having an air inlet which is open to an interior chamber of the housing. An air pump is positioned in the interior chamber of the housing and has an air inlet which is open to the int... | 10/10/2006 |
| 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 |
| 7079388 | Baffles for high capacity air-cooling systems for electronics apparatus An improved air-cooling system for high performance, high density electronic equipment comprises, in one embodiment, a single fan having a radial impeller, a baffle having an inlet portion to efficiently direct air into the fan intake, and a two-tiered outlet plenum... | 07/18/2006 |
| 7025810 | Method and apparatus for shutting down a fuel-fired burner of an emission abatement assembly A method of operating a fuel-fired burner of an emission abatement assembly includes supplying a reduced amount of fuel to the fuel-fired burner in response to detection of a burner shutdown request. Such a reduced fuel supply continues for a predetermined time peri... | 04/11/2006 |
| 6991674 | Monitoring arrangement for compartment air contamination An air quality monitoring arrangement is associated with an enclosed cab of an agricultural tractor used for towing or carrying spraying implements for treating crop with substances which might be toxic or otherwise harmful to people. A signal from a contaminant sen... | 01/31/2006 |
| 6984256 | System for collecting and filtering imaging by-products An operational state of a system for filtering imaging by-products from an airflow is monitored by comparing a measurement of the flow rate of the airflow to a threshold. Additionally, an operational state of a filtration element is monitored by accumulating a count... | 01/10/2006 |
| 6926761 | Electronic breather bag filter A breather bag filter assembly for use with an electronic enclosure, such as a hard disk drive enclosure containing a rotating disk, is disclosed. The filter assembly provides filtration of air entering and exiting an electronic enclosure through a breather hole. Th... | 08/09/2005 |
| 6865780 | Method of and apparatus for controlling the suction in a thread-breakage suction unit of a textile machine A method and a device for controlling the suction, by speed alteration of a blower motor, in a unit for suctioning away thread breakage in a textile machine. A standard speed of the blower motor without speed control is established to achieve the suction, after whic... | 03/15/2005 |
| 6734801 | Switch frame electronic air filter alarming device An alarming apparatus and methods for use with an air filter are disclosed herein. A filament can be stretched across a portion or section of an air filter frame, wherein the portion or section comprises a first locus and a second locus located diagonally opposite t... | 05/11/2004 |
| 6712889 | Air filtration device An air filtration device for intake of atmospheric air, removal of contaminants from the atmospheric air, expulsion of filtered air, includes a housing configured for application directly to an electrical outlet and provides air intake from the front surface of the ... | 03/30/2004 |
| 6660070 | Air purifier An air purifier includes a cabinet, an electrically driven fan, a replaceable filter element, and an air quality sensor. A display provides a visual indication of the air quality condition. A microprocessor is programmed to control the speed of the fan au... | 12/09/2003 |
| 6645277 | Filtering apparatus for filtering compressed air A filter device for the filtration of compressed air, which is provided with a filter means (6) able to be deinstalled for cleaning and/or renewal purposes. Furthermore there is a detection means (52) which renders possible detection of the filter means (... | 11/11/2003 |
| 6620222 | Computer air filtering system A system for filtering air entering the housing of a computer. A filter is placed in the path of air entering the computer housing. A timing program is installed on the computer to keep track of the total amount of time the computer has run since installa... | 09/16/2003 |
| 6616736 | Air purifier An air purifier (10) is provided having a housing (11) having a grilled air inlet (12), a grilled air outlet (13), and a control panel (14). The air purifier (10) also includes a pre-filter (16), a main filter (17), a blower (18) and a controller (19), al... | 09/09/2003 |
| 6508868 | Air filtration device including filter change indicator An air filtration device for intake of atmospheric air, removal of contaminants from the atmospheric air, expulsion of filtered air, includes a housing configured for application directly to an electrical outlet and provides air intake from the front surf... | 01/21/2003 |
| 6447587 | Air filtration device An air filtration device for intake of atmospheric air, removal of contaminants from the atmospheric air, expulsion of filtered air, includes a housing configured for application directly to an electrical outlet and provides air intake from the front surf... | 09/10/2002 |
| 6391102 | Air filtration system with filter efficiency management A filtration system for trapping airborne contaminants as exemplified in evacuating smoke generated during a surgical procedure wherein operation efficiency thereof is automatically reported in relation to filter structure cumulative use time and cumulati... | 05/21/2002 |
| 6328791 | Air filtration device An air filtration device for intake of atmospheric air, removal of contaminants from the atmospheric air, expulsion of filtered air, includes a housing configured for application directly to an electrical outlet and provides air intake from the front surf... | 12/11/2001 |
| 6315821 | Air filtration device including filter change indicator An air filtration device for intake of atmospheric air, removal of contaminants from the atmospheric air, expulsion of filtered air, includes a housing configured for application directly to an electrical outlet and provides air intake from the front surf... | 11/13/2001 |
| 6284020 | Method of maintaining cleanliness of substrates and box for accommodating substrates A method of maintaining cleanliness of substrates including a first step for accommodating at least a piece of substrate having a gaseous impurity-trapping filter arranged close thereto in a hermetically sealed box, and a second step for circulating the a... | 09/04/2001 |
| 6203590 | Surgical smoke evacuation system with replaceable filter cartridge module and accumulated filter usage display An evacuation system is provided for removing smoke generated during a surgical procedure performed in a surgical room. The evacuation system includes a pre-filter assembly and a replaceable filter cartridge module disposed in the surgical room to permit ... | 03/20/2001 |
| 6152998 | Automatic filter cartridge An automatic filter cartridge in accordance with the present invention includes a frame which is formed with an aperture and an elongated filter medium which is attached to a supply roller and a take-up roller. Specifically, the supply and take-up rollers... | 11/28/2000 |
| 6077336 | Air filter system An air filter system that includes a mechanism for notifying a user when a proper filter replacement period had elapsed that further includes a scenting mechanism for scenting the air flowing through the filter system with a pleasant odor. The air filter ... | 06/20/2000 |
| 6036757 | Portable room air purifier A portable air purifier including a housing defining an air inlet, an air outlet and an air flow passage extending therebetween; a filter mechanism disposed to filter air circulating through the flow passage; and a fan retained by the housing and activata... | 03/14/2000 |
| 6024780 | Method and apparatus for degassing a fluid in a reusable vaccum chamber with microprocessor based controls An automatic apparatus for substantially reducing gas levels in a fluid is provided. The apparatus comprises: (a) an upper portion comprising a reusable vacuum chamber with a resealable opening thereto; the vacuum chamber being capable of containing a sui... | 02/15/2000 |
| 5961919 | Deodorizing and sterilizing device having catalyst deterioration sensing function A deodorizing and disinfecting apparatus having catalyst deterioration detection function of the present invention comprises: an air supply portion for inhaling air inside; an ozone generating portion for discharging ozone to the inhaled air: a catalyst f... | 10/05/1999 |
| 5951746 | Suction device for cleaning purposes In order to develop a suction device for cleaning purposes having a collecting container, which includes a closable suction inlet, a suction outlet and a filter disposed therebetween and is connected to a suction unit by a suction line emanating from the ... | 09/14/1999 |
