Impeller Upstream Of Separating Media Patents (Class 55/473)
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Patent number: 7658190Abstract: A powered air-purifying respirator that includes an enclosure, defining a single contiguous enclosed interior, an inlet duct, including an inlet and a distribution portion, that guides ambient air to the interior of the enclosure, a plurality of filter canisters disposed within the interior of the enclosure, and a blower that forces air through the at least one inlet, into the interior of the enclosure and through the plurality of filter canisters to produce filtered air suitable for breathing. A valve controls the flow of ambient air through the inlet duct. A fluid dam, disposed in an air path between the inlet and the filter canisters prevents liquids from reaching the filter canisters. The enclosure is reinforced and is adapted to provide protection for the filter canister from flame and heat while the filter canister is in use. A recirculation valve recycles previously-filtered air back into the enclosure.Type: GrantFiled: April 6, 2005Date of Patent: February 9, 2010Assignee: STI Licensing Corp.Inventors: Jerry Allen Phifer, William Eugene Parson, Judge W. Morgan, III, Robert Daniel Williams
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Patent number: 7647927Abstract: A breathing apparatus is operable in self-contained and filtered modes of operation. In the self-contained mode of operation, a breathable gas is delivered to a user from a self-contained source of breathing gas. In a second, filtered mode of operation, a suction source draws ambient air through a filter removing contaminants and delivers filtered ambient air to the user. A method of delivering air to a subject is also provided.Type: GrantFiled: August 23, 2004Date of Patent: January 19, 2010Assignee: Wilcox Industries Corp.Inventors: James W. Teetzel, Gary M. Lemire, Daniel A. Desrosiers, Mark A. Hansen
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Patent number: 7641707Abstract: A refrigerator having an air-cleaner is provided. The refrigerator includes a main body with a predetermined storage space defined therein, and an air-cleaner including a case fixed to the main body and having at least an inlet and outlet, a decor panel that linearly reciprocates to selectively open and close the outlet, a filter device that filters air sucked through the inlet, a blower that sucks air through the inlet and discharges the air filtered in the filter device through the outlet, and an anion generator that generates anions which are discharged along with the air through the outlet. The air-cleaner is securely mounted to the upper surface of the refrigerator.Type: GrantFiled: June 15, 2005Date of Patent: January 5, 2010Assignee: LG Electronics Inc.Inventors: Byeong-Gyu Kang, Sang-Ho Park, Jin-Hyun Kim
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Patent number: 7637976Abstract: An air filter insert including at least one filter element (2; 4; 11) and a seal (3; 7) extending along outer edges of one side of the filter insert (2; 4; 11) and via which the filter insert is sealingly seated against housing sections (5, 6) of a surrounding filter housing. The filter insert (2; 4; 11) is configured such that the air can easily flow into or out of the structural space on the one side of the filter element with a minimum pressure drop. The filter insert (11) may be at least partially covered on the inflow and/or discharge side by a semi-permeable component (12), which at least partially equalizes the pressure distribution in the air stream.Type: GrantFiled: June 14, 2006Date of Patent: December 29, 2009Assignee: Mann & Hummel GmbHInventors: Timo Dirnberger, Christoph Baumann, Guenter Jokschas, Markus Roehrig
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Patent number: 7635401Abstract: This system provides an air-ventilating and cleaning element positioned within a housing. The housing contains multiple vents in the housing walls. The vents serve as channels that enable air to flow into and out of the air-ventilating device. The air-ventilating and cleaning element can vary and can range from a simple air ventilator to and an air purifier. The cleaning element can contain a filter element to further facilitate cleaning of the air. The cleaning element can be positioned in the housing on a track or pin to allow for movement of the cleaning element within the housing. Movement of the cleaning element may be desired in order to more efficiently clean air channeled through the device. Because of the ability to move the cleaning element, air flow through the device can be adjusted depending on a particular cleaning application.Type: GrantFiled: April 6, 2006Date of Patent: December 22, 2009Inventor: Dan L. Dietz
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Patent number: 7615090Abstract: A central vacuum unit comprises a cyclonic chamber having a sidewall. A motor causes a swirl of air loaded with debris to centrifugally contact an inner surface of the sidewall of the cyclonic chamber. A lateral outlet is defined through the sidewall to provide for lateral discharge of the debris from the cyclonic chamber.Type: GrantFiled: February 9, 2006Date of Patent: November 10, 2009Assignee: NuEra Solutions Air Inc./NuEra Air Solutions Inc.Inventors: Marc-Antoine Archambault, Dave Plourde
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Patent number: 7597731Abstract: The present invention broadly comprises a multiport filter having at least three intake ports and at least two layers—a first layer for containing particles 3 microns or greater and a second layer that contains particles 3 microns or less in size. In alternate embodiments, the filter includes a third layer for trapping odors and gases and a fourth layer for trapping fines. The second layer may be comprised of ULPA material and may have antimicrobial material. The invention also includes a contaminant removal system for the filtering and recirculation of air contaminated with smoke from cautery-type surgical procedures. The invention also broadly comprises a surgical assemblies control service head designed to house powered surgical devices and a vacuum-filtering system for the treatment of air contamination caused by surgical procedures.Type: GrantFiled: September 15, 2004Date of Patent: October 6, 2009Assignee: Medtek Devices, Inc.Inventors: Christopher A. Palmerton, Daniel Palmerton, Robert O. Dean, Jay T. Kajdas, Earnest Moehlau
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Patent number: 7591867Abstract: The present invention provides a compact ventilation system provided with an air purifying function. The present invention includes a case having at least one inlet and outlet communicating with an indoor space, an air supply duct connected to the case to allow the case to communicate with an outdoor environment, a fan provided within the case, the fan sucking air introduced into the case via the air supply duct, the fan blowing out the sucked air to the at least one outlet, an air guide provided within the case to guide the air introduced into the case to the fan and to guide the air blown from the fan to the at least one outlet, and an air purifying member situated next to a lateral side of the fan between the fan and the at least one outlet to purify the air blown from the fan.Type: GrantFiled: June 8, 2005Date of Patent: September 22, 2009Assignee: LG Electronics Inc.Inventors: Keun Hyoung Choi, Jeong Yong Kim
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Patent number: 7550022Abstract: The present invention provides a portable system for capturing airborne pollutants and methods for using the portable system. The apparatus includes at least one flexible and maneuverable source containment means that can be connected to an atomizer, such as a spray gun or aerosol can or can be positioned near or over an open container giving off airborne pollutants. At least one suction generator allows air flow from the source containment means to at least one filter that may be attached or detached from its source of suction. After filtration, the apparatus includes at least one exhaust means to remove the treated air from the proximity of the user.Type: GrantFiled: February 21, 2007Date of Patent: June 23, 2009Inventor: William C. Smith
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Patent number: 7544223Abstract: An inner portion of a filter cleaning portion 300 arranged at an inner portion of an interior unit is respectively arranged with cleaning units 300A, 300B constituted by arranging upper brushes 344a, 344b brought into contact with one face of an air filter and lower brushes 322a, 322b brought into contact with other face of the air filter 5 opposedly to each other at filter inlet/outlet 350a, 350b of the filter cleaning portion 300. Further, a longitudinal frame 54 and a transverse frame 55 of an air filter 5 having a filter sheet 51 in a shape of a meshed sheet for catching dust and a frame 52 for supporting the filter sheet 51 are formed on a rear face side (side of heat exchanger 3) of the filter sheet 51.Type: GrantFiled: September 1, 2005Date of Patent: June 9, 2009Assignee: Fujitsu General LimitedInventors: Masato Oda, Jun Kakudate, Hiroyuki Hamano
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Publication number: 20090107093Abstract: A dust collector includes turbofans with inducers fixed to the shafts of electric motors. The electric motors are fixed to the rectangular body with mounting legs. The dust collector further includes a single dust collecting filter under the turbofans. The turbofans have a diameter ranging from 40% to 50% of the length of the short side of the body.Type: ApplicationFiled: September 15, 2006Publication date: April 30, 2009Applicant: Matsushita Electric Industrial Co., Ltd.Inventors: Kazuo Ogino, Atsushi Nagata, Hitoshi Nozu
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Patent number: 7468084Abstract: A device for conditioning recirculating air in a cleanroom has at least one fan having a housing. A return air conduit is provided through which a first portion of recirculating air is supplied from the cleanroom to the at least one fan. A second portion of the recirculating air is directly supplied to the at least one fan by bypassing the at least one return air conduit.Type: GrantFiled: December 11, 2004Date of Patent: December 23, 2008Assignee: M+W Zander Facility Engineering GmbHInventors: Helmut Bauer, Manfred Renz
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Patent number: 7465327Abstract: A refrigerator having an air-cleaner is provided. The air-cleaner may include a case having at least an inlet and an outlet, and a blower that draws air in through the inlet through a filter unit, and discharges the air through the outlet. The filter unit may include a filter for purifying the air flowing therethrough, a filter basket in which the filter is seated, and a door fixed to the filter basket so that the basket may be drawn in and out in a drawer-like fashion. The air-cleaner may also include fastening means for fastening the basket door to the filter basket, guiding means for guiding the mount and dismount of the filter basket, and locking means for keeping the filter basket positioned in the case.Type: GrantFiled: June 24, 2005Date of Patent: December 16, 2008Assignee: LG Electronics Inc.Inventors: Chan-Kyoo Jang, Sang-Ho Park, Jeong-Youl Lee
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Patent number: 7462213Abstract: A method of operating a plurality of clean room in a compound within a common enclosure and supplying each room with filtered air by a blower-filter unit by arranging the clean rooms and the blowers connected thereto in two parallel spaced rows with a corridor therebetween, and permitting filtered air to escape the clean rooms from beneath the walls of the clean rooms. Continuous operation of the blowers produces a bubble-like volume of air surrounding the blowers which consists primarily of clean, recirculated air escaping from the clean rooms. By arranging the clean rooms and blowers so that the clean air bubble produced by each blower overlaps the bubbles produced by at least two other blowers, the entire compound can be contained in a highly purified atmosphere consisting primarily of recirculated filtered air. A portion of the air from one or more clean rooms may be discharged in an upward direction through an opening in its top wall.Type: GrantFiled: October 26, 2005Date of Patent: December 9, 2008Inventor: Charles W. Spengler
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Patent number: 7459002Abstract: An example presentation apparatus having a cabinet-like base and a surface coupled to the cabinet-like base and configured to hold an object. The cabinet-like base and the surface are configured to cooperate functionally with a function of the object. A portion of an air processing apparatus is disposed within the cabinet-like base and configured to move ambient air through the cabinet-like base to generate processed air. An exhaust structure is operatively coupled to the cabinet-like base and configured to enable the processed air to exit the presentation apparatus via a flow path that is spatially associated with a substantially predetermined position of the object.Type: GrantFiled: August 31, 2004Date of Patent: December 2, 2008Assignee: Airistar Technologies LLCInventors: D. Scott Kalous, Charles Harris
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Patent number: 7445653Abstract: A centrifugal oil separator which includes a disk separator disposed in a housing and has a plurality of spaced disks between which paths of flow for a gas to be cleaned are provided. The paths of flow connect an intake space located at the radial exterior of the disk separator with an inner, axial discharge channel. The intake space is supplied with pressurized gas via a rotation element that is configured as a compressor wheel and that is disposed in the area of an axial end face of the disk separator.Type: GrantFiled: July 11, 2005Date of Patent: November 4, 2008Assignee: Mann & Hummel GmbHInventors: Pius Trautmann, Michael Durst
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Patent number: 7431753Abstract: An oxygen enrichment apparatus includes a main body including an oxygen enriching unit and a pump unit for supplying oxygen-enriched air obtained by the oxygen enriching unit to a predetermined place; a ventilating unit for suctioning exterior air into the main body and discharging the exterior air out of the main body after supplying the exterior air into the oxygen enriching unit; and a control unit for controlling the pump unit and the ventilating unit. The ventilating unit and the control unit are installed in the main body. The main body further includes therein a secondary battery serving as a power supply for supplying a power to the pump unit, the ventilating unit and the control unit.Type: GrantFiled: January 12, 2005Date of Patent: October 7, 2008Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Toshiyuki Yoshida, Yasuo Oushima, Kazuhisa Morishita
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Patent number: 7416574Abstract: A filter apparatus for improving gas temperature stability while maintaining a high impurity removal capacity. The filter apparatus includes a filter for removing impurities from a gas and a temperature adjuster for adjusting the temperature of the gas to a predetermined temperature. The filter apparatus further includes a humidity detector, arranged at the upstream side of the filter, for adjusting the humidity of the gas before the gas passes through the filter.Type: GrantFiled: December 2, 2005Date of Patent: August 26, 2008Assignee: Nikon CorporationInventors: Kenji Udagawa, Yoshitomo Nagahashi
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Patent number: 7413086Abstract: An inline sifter including a gas-powder mixture receiving module which receives a mixture of a gas and powdery material from an inlet, a sieving module which communicates with a supply chamber of the gas-powder mixture receiving module, a rotating mechanism which is laterally extended inside the supply chamber and the sieving chamber, a cylindrical sieve arranged such that the rotating shaft extended in said sieving chamber passes through a center thereof, a wind power amplifier located in an internal area of the sieve to amplify wind power and press the powdery material out from the sieve, a removal member used to remove a remaining material from the sieve, an outlet used to discharge material which has passed through the sieve, and a support member. The gas-powder mixture, being supplied in a circumferential direction of the supply chamber, flows around the rotating shaft and is fed into the sieving chamber.Type: GrantFiled: June 19, 2006Date of Patent: August 19, 2008Assignee: Tsukasa Industry Co., Ltd.Inventors: Fumio Kato, Teruo Inoue
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Patent number: 7396390Abstract: An oxygen enrichment apparatus includes an oxygen enriching unit for generating oxygen-enriched air and a discharge unit for discharging the oxygen-enriched air transferred from the suction unit. The oxygen-enriched air generated by the oxygen enriching unit has an oxygen concentration ranging from about 25% to 35%. The apparatus also includes a suction unit for suctioning the oxygen-enriched air from the oxygen enriching unit and a control unit for controlling the operation of the suction unit. The main body is provided with a display unit for indicating a state that the oxygen-enriched air is being discharged out by the discharge unit. The oxygen enriching unit has at least one oxygen enriching membrane for generating the oxygen-enriched air and a condensed water treating unit is installed at an air passage for guiding the oxygen-enriched air from the oxygen enriching unit to the discharge unit via the suction unit.Type: GrantFiled: September 25, 2003Date of Patent: July 8, 2008Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Nobuhiro Hayashi, Toshiyuki Yoshida, Yasuo Oshima, Yoshitaka Murata, Teruyuki Yasuda, Hiroyuki Senoo
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Patent number: 7377952Abstract: An air decontamination system including a sealed room to hold at least one person and the sealed room having an air inlet. The system further including a vacuum unit to create a negative pressure within the sealed room, by suctioning air through the air inlet into the sealed room and then from the sealed room into an inlet of the vacuum unit. The system still further including a work surface disposed in the sealed room at a predetermined height above a floor of the sealed room and the work surface to receive at least one mail piece and the air to be suctioned downwardly over the at least one mail piece and the work surface; and a filter unit to filter the air as the air is drawn out of the sealed room.Type: GrantFiled: September 1, 2005Date of Patent: May 27, 2008Assignee: American Safe Air, Inc.Inventors: David A. Stout, William R. Lehman
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Patent number: 7323026Abstract: A safety cabinet which can prevent contaminated air from leaking from a working space through the periphery of a front shutter, and which can prevent outside air from entering the working space has a peripheral structure part surrounding the working space formed with air suction ports in a part opposed to the inner surface of the front shutter connected to a negative pressure passage formed outside of the working space. The negative pressure passage guides air sucked through the air suction ports from the inside and the outside of the working space, toward a filter for purification of the air.Type: GrantFiled: February 28, 2006Date of Patent: January 29, 2008Assignee: Hitachi Industrial Equipment Systems Co., Ltd.Inventor: Keiichi Ono
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Patent number: 7320719Abstract: A filter device adapted for filtering fluids flowing one of into or out of a fluid duct. In one embodiment, the filter device comprises a container having one or more walls, wherein at least one of the walls is at least partially rigid and a first opening and a filter element mounted in the first opening so that the filter element forms at least a portion of one of the walls. The one or more container and the interior face of the filter element define an interior adapted for collecting contaminants in a fluid flowing out of the fluid duct. The container further comprises a second opening adapted for sealingly and removably connecting the filter device to the fluid duct so as to provide fluid communication between the interior of the filter device and the fluid duct, wherein the second opening is further adapted for being closed when the filter device is removed from the fluid duct.Type: GrantFiled: February 5, 2003Date of Patent: January 22, 2008Assignee: 3M Innovative Properties CompanyInventors: Peter van de Graaf, Johannes Valkenburg
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Patent number: 7316720Abstract: A securing device for a filter element, which can be detachably mounted on an extractor hood, has a connecting implement for detachably connecting the filter element to the associated extractor hood. The connecting implement catches the filter element when detaching the filter element from the extractor hood and prevents it from falling down. The connecting implement has a fixing element with a rod-like section and with a thickening connected thereto. The connecting implement also has a closure element with a U-shaped slot. The rod-like section of the fixing element is formed so that it fits the U-shaped slot of the closure element.Type: GrantFiled: June 21, 2004Date of Patent: January 8, 2008Assignee: BSH Bosch und Siemens Hausgeraete GmbHInventors: Fabiana Cuppari, Egon Feisthammel, Dieter Rosmann, Sven Wlodarczyk
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Patent number: 7314495Abstract: 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.Type: GrantFiled: October 21, 2005Date of Patent: January 1, 2008Assignees: Institut Francais du PetroleInventors: Francis A. L. Dullien, Jean-Charles Viltard
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Patent number: 7309365Abstract: A vacuum cleaner including an electric blower for generating suction air, a collecting unit for collecting dust contained in the suction air, a dust removing unit for removing dust adhered to the collecting unit, and a dust removing stop unit for stopping an operation of the dust removing unit. The dust removing stop unit stops the operation of the dust removing unit in response to a user's selection or an operation mode of the vacuum cleaner, thereby saving a power consumption of the dust removing unit.Type: GrantFiled: October 15, 2003Date of Patent: December 18, 2007Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yasuhiro Yuasa, Akihito Ito, Takafumi Ishibashi, Kazuhisa Morishita
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Patent number: 7300485Abstract: An apparatus includes a rigid housing having a plurality of sides removably engaged with the electronic device and a plurality of passageways for effectively channeling air through first and second directions. The apparatus further includes at least one rotary fan moving in a selected radial path situated along one of the sides, a disposable electrostatic filter bifurcating the passageways wherein the contaminants are trapped and a power supply source electrically coupled to the fans.Type: GrantFiled: October 12, 2004Date of Patent: November 27, 2007Inventors: Franklin R. Moore, Andrew J. Collins
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Patent number: 7279021Abstract: A manually-guided, portable suction device/blower is provided, and includes a blower unit having a motor for driving the blower unit, a blower tube that extends from the blower unit, a collection bag, wherein during suction operation of the suction device/blower, the blower tube opens out into the collection bag, and a potential-equalizing device disposed within the collection bag, wherein the potential-equalizing device is electrically conductively connected with an electrical ground connection of the suction device/blower.Type: GrantFiled: March 1, 2005Date of Patent: October 9, 2007Assignee: Andreas Stihl AG & Co. KGInventor: Jürgen Häberlein
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Patent number: 7270691Abstract: In accordance with an embodiment of the invention, an integrated air processing device includes a housing defining an air inlet, an air outlet, and a pathway from the inlet to the outlet. An air decontamination section, an air conditioning section, and a heating section are provided along the pathway. A blower is also provided along the pathway, to drive air from the inlet to the outlet, along the pathway. In another example, an integrated air processing device includes a housing as above, and an air conditioning section and a heating section along the pathway. An air decontamination section and/or a blower may also be provided along the pathway. In accordance with another embodiment, a portable isolation containment system includes one or more portable containment enclosures coupled to the integrated air processing devices described above. Methods are disclosed, as well.Type: GrantFiled: March 25, 2005Date of Patent: September 18, 2007Inventors: Theodore A. M. Arts, Paul J. Chirayath
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Patent number: 7208031Abstract: The apparatus is a portable paint spray capture apparatus that limits dispersion of sprayed paint and permits spray painting small surfaces in unenclosed areas without harming the environment or nearby objects. An open top container is located below the surface being painted and hoses interconnect the container to a vacuum device drawing air from the container and through a water trap that collects paint particles. Air leaving the water trap passes through an underwater mesh screen to form smaller bubbles to help separate out the paint particles. Air movers push air from opposite sides of and toward the center of the surface being painted. Significant air flow paths are thereby established from the sides of the spray area into the container below it, and virtually all of the paint not adhering to the surface being painted is collected by the water trap.Type: GrantFiled: June 3, 2005Date of Patent: April 24, 2007Inventor: Daniel E. Hendrickson
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Patent number: 7201787Abstract: An air cleaner and method of controlling an operation of the same is disclosed. The air cleaner includes a cabinet having an inlet and an outlet; a filter assembly removing dust and smell particles from a room air; a fan; a sensor assembly sensing the composition of the room air; a supplier assembly providing at least one of insufficient components of the room air to a cleaned air; and a controller controlling the supplier assembly on the basis of data regarding the composition of the room air. In another aspect, the method of controlling the operation of the air cleaner includes steps of sensing a room air; measuring insufficient components of the room air and the amount thereof; and providing at least one of the insufficient components of the room air to a cleaned air.Type: GrantFiled: April 22, 2004Date of Patent: April 10, 2007Assignee: LG Electronics Inc.Inventors: Ho Seon Choi, Ju-Yeon Lee
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Patent number: 7195660Abstract: A travel pillow has one or more air filters and a body with a soft material coupled to the one or more air filters. The air filters can be powered by a power source located within the pillow. The one or more air filters can have an air intake and an air outflow in communication with an exterior surface of the body. The air filters may be an electrostatic precipitator filter or use a filtering material to clean the air.Type: GrantFiled: April 20, 2004Date of Patent: March 27, 2007Assignee: Brookstone Purchasing, Inc.Inventors: Baird M. Little, Steven H. Schwartz
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Patent number: 7175699Abstract: A filter assembly including a filter medium installed in at least one receptacle. The filter assembly includes a heating system to heat the filter medium. The filter medium includes metal fibers. The receptacle or receptacles are provided with at least one air inlet and with at least one air outlet and a device to eliminate the air and free space around and in the filter medium. The receptacles may include at least two deformable walls, which are membranes made of a polymeric or elastomeric material, and the filter medium may include at least one sintered, non-woven metal fiber web.Type: GrantFiled: September 6, 2001Date of Patent: February 13, 2007Assignee: NV Bekaert SAInventor: Bruno Aubert
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Patent number: 7153347Abstract: 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 modes set and stored therein for controlling operation of a fan proper to characteristics of air pollution sources, first means for selecting one of the plurality of operation modes stored in the memory, and a controlling part for controlling the fan according to a control program of the operation mode. The method includes the steps of selecting one of a plurality of operation modes, changing setting of an operation time period of the selected operation mode, reading the selected operation mode from the memory, and changing the operation time period of the operation mode to the set value, and controlling the fan according to the value of the changed operation time period and the value of the operation mode read from the memory.Type: GrantFiled: November 6, 2003Date of Patent: December 26, 2006Assignee: LG Electronics Inc.Inventors: Tae Wook Kang, Jae Keun Lee, Ju Ho Ock
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Patent number: 7150778Abstract: The present invention is a system and method for improving the useful life of sorbent beds, such as activated carbon filter beds. It is known that breakthrough in carbon filter beds first occurs at the low gas velocity regions of the filter bed, i.e., at the filter's edges. A recirculation jacket filter system diverts already filtered air from the downstream side of the filter bed toward the peripheral region of the upstream side of the filter bed so that contaminants near the filter's edges are reduced and filter life is improved.Type: GrantFiled: April 26, 2004Date of Patent: December 19, 2006Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Lyle D. Dauber, David R. Peterson, Carl A. Betten, Thomas S. Thoner, D. Michael Reid
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Patent number: 7138008Abstract: A filter assembly for removing particulate contaminants and chemical contaminants from an incoming dirty air stream for a fuel cell. The filter assembly also includes a noise suppression element that reduces sound waves or noise emanating from any equipment, such as a compressor. The filter assembly can include a particulate filter portion for removing physical or particulate contaminants, a chemical filter portion for removing chemical contaminants, or can have both portions.Type: GrantFiled: September 14, 2004Date of Patent: November 21, 2006Assignee: Donaldson Company, Inc.Inventors: Eivind Stenersen, William Michael Nyman, Richard Thomas Canepa
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Patent number: 7128771Abstract: A filter retaining system formed from multiple filter retaining frames is disclosed. Each of the frames is formed from either a female type extrusion or a combination of male and female type extrusions. Specifically, each frame has either a tongue or a groove which is engageable into a corresponding groove or tongue of an adjacent frame. The tongue and groove engagement provides added rigidity to the retaining system, as well as preventing air from bypassing the filters retained within each frame.Type: GrantFiled: June 23, 2004Date of Patent: October 31, 2006Assignee: Total Filtration ManufacturingInventor: Charles Michael Harden
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Patent number: 7118608Abstract: A self-powered, personally wearable air purifier includes a sequence of packed bed filter media packets having filter media therein of specifically targeted types that will absorb those ambient air pollutants that have been identified as being particularly dangerous to human health. A HEPA filter is included for the removal of particulate matter that will have adhered thereto many of such pollutants. Media types can be selected to meet different environmental circumstances, including normal highway or city center air, or terrorist attacks of chemical, biological or “dirty bomb” types as on a battlefield or similar environments. Shoulder straps and a chest strap are provided for wearing the apparatus on a user's back, or other means such as a shoulder pouch can also be employed. Emergency substitution of filter media using thermal insulation from the clothing of the user is available upon depletion of the normal media material.Type: GrantFiled: April 12, 2004Date of Patent: October 10, 2006Inventor: William S. Lovell
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Patent number: 7112232Abstract: An air cleaning apparatus includes a blowing unit and a filtering unit which are easily removed from and installed in a cabinet, allowing the air cleaning apparatus to be easily cleaned. The cabinet included in the air cleaning apparatus may be used as a table. The cabinet is provided with a top panel of a predetermined area, is opened at a bottom thereof, and is provided on at least one side wall thereof with an air outlet port. A fan casing is installed in the cabinet to be drawn out from the cabinet in a horizontal direction. A blowing fan is installed in the fan casing to move air to the air outlet port. A filter casing is installed under the fan casing to be drawn out from the cabinet in the horizontal direction, and at least one filter is installed in the filter casing.Type: GrantFiled: September 30, 2003Date of Patent: September 26, 2006Assignee: Samsung Electronics Co., Ltd.Inventors: Jun Eui Chang, In A Chae, Jin Soon Park
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Patent number: 7093718Abstract: A booster 8 extending in an internal area 53 of a sieve 7 is attached to the outer circumferential face of a rotating shaft 6. The booster 8 has four blades 82, which are radially extended from the outer circumferential face of the rotating shaft 6 and are arranged at preset angles (for example, 90 degrees) to form a pi shape from the front view. The booster 8 has multiple (for example, two) cross-shaped radial members 81 that are arranged radially at a little angle (for example, 3 degrees) and are located on both ends of the rotating shaft 6 via a preset space, the blades 82 that are set in and fixed to the respective ends of each of the radial members 81 and are inclined at a preset angle to the axial direction of the rotating shaft 6, and sheet-like scrapers 83 that are attached to the blades 82 to be a little projected outward in the radial direction. The end of each scraper 83 faces the inner circumferential face of the sieve 7 across a little gap.Type: GrantFiled: November 8, 2001Date of Patent: August 22, 2006Assignee: Tsukasa Industry Co., Ltd.Inventors: Fumio Kato, Teruo Inoue
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Patent number: 7090709Abstract: A safety cabinet which can prevent contaminated air from leaking from a working space through the periphery of a front shutter, and which can prevent outside air from entering the working space has a peripheral structure part surrounding the working space formed with air suction ports in a part opposed to the inner surface of the front shutter connected to a negative pressure passage formed outside of the working space. The negative pressure passage guides air sucked through the air suction ports from the inside and the outside of the working space, toward a filter for purification of the air.Type: GrantFiled: August 29, 2003Date of Patent: August 15, 2006Assignee: Hitachi Industrial Equipment Systems Co., Ltd.Inventor: Keiichi Ono
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Patent number: 7025798Abstract: A personal tabletop-type air cleaner is provided which is user-friendly and can improve smoke sucking efficiency in a simple configuration. The disclosed personal tabletop-type air cleaner has a front opening portion to suck air containing smoke of a cigarette, a blower to forcedly feed air having been sucked into the front opening portions in a centrifugal manner, a pair of right and left peripheral opening portions each being placed in a fringe portion on the right and the left at a front of the air cleaner and forming an air curtain by emitting air fed forcedly from the blower ahead of the front of the air cleaner, a dust collecting filter being placed between the front opening portion and the blower to remove cigarette odor, and a deodorizing filter being placed between the blower and each peripheral opening portion making up the pair of right and left peripheral opening portions to remove cigarette odor.Type: GrantFiled: August 5, 2003Date of Patent: April 11, 2006Assignee: O-DEN CorporationInventor: Kiyomu Endo
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Patent number: 7022151Abstract: A safety cabinet which can prevent contaminated air from leaking from a working space through the periphery of a front shutter, and which can prevent outside air from entering the working space has a peripheral structure part surrounding the working space formed with air suction ports in a part opposed to the inner surface of the front shutter connected to a negative pressure passage formed outside of the working space. The negative pressure passage guides air sucked through the air suction ports from the inside and the outside of the working space, toward a filter for purification of the air.Type: GrantFiled: November 5, 2004Date of Patent: April 4, 2006Assignee: Hitachi Industrial Equipment Systems Co., Ltd.Inventor: Keiichi Ono
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Patent number: 7014672Abstract: According to the present invention, in a carrying system comprising a carrying vehicle and a manufacturing apparatus the interior of which is kept cleaner than a surrounding environment, manufactured articles to be transferred are prevented from being contaminated by foreign matter or the like attached to transfer ports. A carrying vehicle includes a running unit 14 that runs along a predetermined carrying path, a cleaning unit 12 that supplies cleaned air, a housing section 13 to which the cleaned air is supplied and in which manufactured articles are housed, a transfer port 11 which is formed in a side of a housing and through which a manufactured article is loaded into or unloaded from the housing section 13, and an air injecting section 19A that blows out air toward the transfer port 11.Type: GrantFiled: June 17, 2003Date of Patent: March 21, 2006Assignees: Advanced Display Inc., Murata Kikai Kabushiki KaishaInventors: Hiroyuki Ishihara, Takao Shimizu, Takashi Nakao, Ryosuke Tahara, Hidetoshi Takeuchi
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Patent number: 6984259Abstract: An air purification and disinfection apparatus incorporates an air inlet filter (1) spanning the intake of the apparatus, an ultraviolet light source (2) for treating the air within a chamber (14) of the apparatus, and an equalising screen (3) spanning the outlet of the apparatus. The chamber (14) is lined with a reflective sheet (11) or coating such that the ultraviolet light is reflected around the chamber (14). The air inlet filter (1) removes larger airborne particles from the airflow prior to entering the chamber (14). The light source (2) may be located in the chamber (14) or in a housing (16) which communicates with the chamber (14). With the reflective surface of the chamber (14), the intensity of the light source (2) can be maintained when dirt begins to build up on the light source (2), thereby extending the length of time that passes between each cleaning of the light source (2).Type: GrantFiled: April 17, 2001Date of Patent: January 10, 2006Assignee: UVGI Systems LimitedInventor: Gordon Hurst
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Patent number: 6979359Abstract: Portable, rapidly deployable filter unit for use in air filtering methods providing high efficiency filtration of airborne toxins. The filter unit includes a fan section and a filter section that are releasably attachable at their respective lateral ends permitting the filter unit to be reconfigurable to properly handle a variety of threat scenarios involving protecting the occupant(s) and equipment in an enclosure against an airborne release of toxic chemical, biological, or radiological agents that threaten to contaminate the air supply, or, alternatively, for decontaminating the air of an isolation room occupied by contaminated or contagiously ill persons or materials and protecting the occupants or equipment located outside the isolation room.Type: GrantFiled: July 16, 2003Date of Patent: December 27, 2005Inventor: Peter J. Laiti
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Patent number: 6953491Abstract: A portable, light-weight exhaust fan that can be easily and quickly carried to and set up in a localized area to safely, efficiently and substantially remove airborne materials thereby overcoming the above and other drawbacks of conventional exhaust fans. Exhaust fans in accordance with aspects of the present invention may be used to ventilate a localized area such as an enclosed room and may be placed in any aperture such as a window or doorway to remove substantially all airborne material from the air passing therethrough, and to exhaust filtered air directly or indirectly to the surrounding environment. An exhaust fan constructed such that air traveling along an exhaust path through the fan is prevented from contacting components of the fan that can be damaged by exposure to the airborne materials. This enables the exhaust fan to efficiently remove airborne materials from a localized area while preventing the same materials from adversely affecting the operation of the fan.Type: GrantFiled: April 18, 2003Date of Patent: October 11, 2005Inventor: Michael E. Goyetche
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Patent number: 6945868Abstract: A camouflaged outdoor fan system includes a housing, a fan inserted into the housing, and a camouflaged lid removably connected to the housing. The housing is buried in the ground, or in alternative embodiment, mounted to the underside of a deck, the fan is inserted into the housing, and the camouflaged lid is placed over the fan to hide the fan and housing from view. The fan is operable to generate and propel an air stream out of the housing that can be used for cooling purposes. The system also may include optional features, such as a water-misting device, a heater, motion detectors, an evaporative cooling assembly, a temperature switch, a humidity switch, a rain gauge switch, a wind sensor switch, a dc power source, solar cells, or a remote control system.Type: GrantFiled: December 10, 2003Date of Patent: September 20, 2005Inventor: James Cameron Gautney
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Patent number: 6929671Abstract: The present invention relates to a combination air purifier and wind generator. The combination air purifier and wind generator includes a wind-receiving unit installed on a central shaft for driving an electric generator mounted in a housing, and an air purifier. The wind-receiving unit includes a governor fixed to an upper end of the central shaft, a spherical blower installed in the middle of the central shaft, and planar magnetic rotary plates installed at a lower end of the central shaft for receiving both artificial and natural winds. Lower magnets are attached to the top of the housing while upper magnets having the same polarity as the lower magnets are attached to the bottoms of the magnetic rotary plates to face the lower magnets. The air purifier includes two air inlets; one air outlet; a copper net, a silver net and a hard charcoal/zeolite net disposed within the air purifier for purifying air introduced thereinto; and a blower interposed between the silver net and the hard charcoal/zeolite net.Type: GrantFiled: May 28, 2002Date of Patent: August 16, 2005Inventors: Eung-Pil Kim, Kwang-Sik Kim
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Patent number: 6911060Abstract: The present invention relates to a floor standing treatment device that has a front panel and a mainframe assembly adapted to be removably attachable to the front panel. The mainframe assembly has an integrally molded latching mechanism having a latch and one or more L shaped guides configured to cooperate with one or more pairs stops for limiting lateral movement of the latch. The latch is adapted to engage a portion of the front panel for securely attaching the front panel to the mainframe assembly. The air purifier may also have a cavity positioned along a bottom edge of a back housing to house an electrical cord provided with the air purifier. Additionally, the air purifier may also have an elongated slot positioned at the apex of the mainframe assembly for allowing one or two handed carrying of the air purifier.Type: GrantFiled: March 20, 2003Date of Patent: June 28, 2005Assignee: Whirlpool CorporationInventors: Ali Kaylan, Guolian Wu, Armando Luisi, Andrew D. Litch, Paul B. Allard