Three Or More Serially Spaced Patents (Class 55/485)
  • Patent number: 7416574
    Abstract: 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: Grant
    Filed: December 2, 2005
    Date of Patent: August 26, 2008
    Assignee: Nikon Corporation
    Inventors: Kenji Udagawa, Yoshitomo Nagahashi
  • Patent number: 7413587
    Abstract: A fluid handling device having a support frame and a plurality of filter frames attached thereto. Each of the filter frames has an outer frame member that removably secures a filter; the filters being either a planar filter, pocket filter, or multiple pocket filter. The various filters can be arranged to correlate the change-out schedule of all of the filters across the fluid flow area. The filters with the highest particulate capacity can be arranged to be in the zone of the fluid flow area with the highest particulate concentration. The filters are easily constructed from a single piece of filtration media and collapsible to save space when storing or shipping.
    Type: Grant
    Filed: June 27, 2006
    Date of Patent: August 19, 2008
    Inventor: Scott B. Beier
  • Patent number: 7399419
    Abstract: A filter system includes a set of modules, each module including screen assemblies and filter media sandwiched between the screen assemblies. A plurality of control assemblies are associated with each of the modules. Each of the control assemblies is in fluid communication with a corresponding module to control flow through the corresponding module. The control assemblies selectively control fluid in each of the modules between at least one of a forward flow through the screen assemblies to treat an influent flow, a bypass flow to bypass at least one of the modules, and a reverse flow to backwash a given filter media. A method of filtering influent includes providing an influent flow to a set of modules, each module including screen assemblies and filter media sandwiched between the screen assemblies. The influent is filtered by directing the influent through the set of modules. A given module is bypassed when the given module becomes occluded.
    Type: Grant
    Filed: October 29, 2004
    Date of Patent: July 15, 2008
    Assignee: Filtersure, Inc.
    Inventors: Ronald D. Barbaro, Ronald E. McIlwain, David Munyan
  • Patent number: 7387700
    Abstract: A method of manufacturing a filter medium that has a PF value that exceeds 32, the PF value calculated from the pressure loss and the collection efficiency of the filter medium according to the following formula: PF=[?log(permeability (%)/100)/(pressure loss (Pa)]×1000[Formula 1] in which permeability (%)=100?collection efficiency (%). In this method, 380 ml or more of a liquid lubricant at 20° C. is added per 1 kg of a PTFE fine powder, this compound is processed into a tape shape and elongated to obtain a PTFE porous film, and an air permeable support member is heat laminated to at least one surface of the PTFE porous film.
    Type: Grant
    Filed: April 3, 2002
    Date of Patent: June 17, 2008
    Assignee: Daikin Industries, Ltd.
    Inventors: Osamu Tanaka, Kunihiko Inui, Yoshiyuki Shibuya, Hideyuki Kiyotani
  • Patent number: 7384439
    Abstract: A vent for a fluid system includes a chamber through which fluid can flow along either a first flow path or a second flow path, in which the resistance to fluid flow is relatively high when the fluid follows the first flow path and relatively low when the fluid follows the second flow path. In a preferred embodiment the chamber is substantially cylindrical and has two ports, one of which is substantially coaxial with the chamber and the other of which is substantially tangential to the chamber. The fluid flow, at least when flowing the first flow path, may include a component of higher density than the fluid, and the flow of fluid along the first flow path may act to separate the higher density component from the fluid.
    Type: Grant
    Filed: January 11, 2007
    Date of Patent: June 10, 2008
    Assignee: Rolls-Royce plc
    Inventor: John L Broughton
  • Patent number: 7364604
    Abstract: An apparatus and method for gas/liquid separation on an array of jets or streams of liquid is provided. Layers of substantially spherical aggregates of meshed material are provided to “quiet” high-velocity liquid flow with entrained gas to provide a uniform flow at moderate or low velocity from which the gas has been substantially separated from the liquid.
    Type: Grant
    Filed: March 30, 2005
    Date of Patent: April 29, 2008
    Assignee: The Boeing Company
    Inventor: David L. Wait
  • Patent number: 7344580
    Abstract: Converting machines give rise to polluted air which must be removed with the aid of fans and filters. The invention aims at removal of the polluted air in such a way that the servicing interval is greatly extended by the use of a filter unit having a number of part-filters arranged one after the other and formed of pleated fiber mats, the various mats having different filtering properties.
    Type: Grant
    Filed: September 13, 2002
    Date of Patent: March 18, 2008
    Assignee: Absolent AB
    Inventor: Thomas Lindblom
  • Patent number: 7335240
    Abstract: An assembly for installation in a refrigerator provides comprises an enclosure for conducting service lines therethrough and an air filter unit mounted to the enclosure. The air filter unit includes an air filter housing that contains an air filter and includes openings for the ingress of air from the refrigerator which, after passing through the air filter, is discharged to the refrigerator interior through discharge openings in the air filter housing. Means such as a fan is provided to establish a flow of air through the air filter housing. The air filter unit has utility separately from the enclosure for conducting service lines in which case the air filter housing includes first and second portions that are pivotally connected to one another. The air filter within the air filter housing is supported by one of the first and second portions of the air filter housing.
    Type: Grant
    Filed: December 15, 2004
    Date of Patent: February 26, 2008
    Assignee: Electrolux Home Products, Inc.
    Inventors: Rick L. Gunderson, Joseph E. Brand
  • Publication number: 20080034971
    Abstract: An improved air-conditioner filter, including a planar element for entrapping dust particles, and an additional planar porous element impregnated with a bacteriostat, the filter being arranged in an air-handler unit such that inducted air is first filtered for dust, and subsequently treated for remaining micro-sized organic material. A frame element peripherally encloses the element for entrapping dust particles and the additional porous element so that the components of the filter may be readily replaced as a unit.
    Type: Application
    Filed: August 11, 2006
    Publication date: February 14, 2008
    Inventor: Daryl McIntosh
  • Patent number: 7329293
    Abstract: According to the present invention, a bagless vacuum cleaner includes a dust chamber, a primary filter and a second filter. The dust chamber includes an entrance and an exit. The primary filter is disposed in the dust chamber between the entrance and the exit and the second filter is disposed between the entrance and the primary filter. The second filter removes at least some contaminants from the air passing through the entrance. A user can selectively replace the second filter with a new second filter.
    Type: Grant
    Filed: July 1, 2004
    Date of Patent: February 12, 2008
    Inventor: Bonnie-Lou Griffiths
  • Patent number: 7311751
    Abstract: A filter medium includes at least a first and a second layer. Both first and second layers have a layer volume VLq and a layer filtering surface SLq, where SLq is the accumulation of all mantle surfaces of the fibers present in this layer q. The first layer has a SL1/VL1-ratio of less than 32500 m2/m3, and the second layer has a SL2/VL2-ratio being more than 1.1×SL1/VL1.
    Type: Grant
    Filed: December 5, 2002
    Date of Patent: December 25, 2007
    Assignee: NV Bekaert SA
    Inventors: Feng Mei, Willy Marrecau
  • Patent number: 7291205
    Abstract: An air cleaner eliminates moisture laden in air, thus preventing the moisture from being added to a dust collecting filter and, for example, a deodorizing filter, therefore preventing performance of the dust collecting filter and the deodorizing filter from being deteriorated. The air cleaner includes a cabinet having an air inlet port and an air outlet port, a blowing unit provided in the cabinet to circulate air from the air inlet port to the air outlet port, and a filtering unit provided between the air inlet port and the air outlet port to filter the air drawn into the cabinet. The filtering unit includes a dehumidifying filter to adsorb moisture laden in the air, a dust collecting filter to collect dust laden in the air, and a deodorizing filter to remove an odor from the air. In this case, the dehumidifying filter is placed nearer to the air inlet port in comparison with both the dust collecting filter and the deodorizing filter.
    Type: Grant
    Filed: October 6, 2004
    Date of Patent: November 6, 2007
    Assignee: Samsung Electronics, Co., Ltd.
    Inventor: Euy Sung Chu
  • Patent number: 7270691
    Abstract: 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: Grant
    Filed: March 25, 2005
    Date of Patent: September 18, 2007
    Inventors: Theodore A. M. Arts, Paul J. Chirayath
  • Patent number: 7258728
    Abstract: An apparatus for cleaning air, and a method for cleaning air using the apparatus, includes a housing including an air inlet through which air to be cleaned flows into the housing and an air outlet through which air that has been cleaned is exhausted from the housing, the housing isolating an interior thereof from external surroundings. A first filtering unit is disposed adjacent to the air inlet and includes a plurality of first filters for removing a first group of contaminants from the air to be cleaned. Each of the plurality of first filters is disposed substantially parallel to each other. A fan for drawing the air to be cleaned into the housing from the external surroundings is disposed in the housing.
    Type: Grant
    Filed: August 18, 2004
    Date of Patent: August 21, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang-Su Lim, Yo-Han Ahn, Suk-Hee Im, Sun-Wook Park
  • Patent number: 7255838
    Abstract: An air filter for an internal combustion engine having a rigid type ceramic filter element made by foaming oxygen-rich ceramic powder for creating a plurality of pass-through holes. In this way, the incoming air obtains a thorough contact with the oxygen-rich powder. Meanwhile, the material of the oxygen-rich ceramic releases negative ions to activate the air entering into the internal combustion engine. Moreover, nano-sized platinum black is coated to the surface of the pass-through holes of the ceramic filter element. So, the incoming air passing through the pass-through holes of the ceramic filter element is catalyzed in chemical reactions to divide the water molecule cluster into smaller particles. Meanwhile, the freedom of water molecule is increased to permit an instant decomposition of oxygen and nitrogen molecules, a complete combination with the fuel injected into the internal combustion engine, and a thorough mixing and a better combustion efficiency.
    Type: Grant
    Filed: September 21, 2004
    Date of Patent: August 14, 2007
    Inventors: Andy Yuan, Huan-Pien Li
  • Patent number: 7150778
    Abstract: 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: Grant
    Filed: April 26, 2004
    Date of Patent: December 19, 2006
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Lyle D. Dauber, David R. Peterson, Carl A. Betten, Thomas S. Thoner, D. Michael Reid
  • Patent number: 7144438
    Abstract: A dust collecting container for a vacuum cleaner is removably mounted in a suction chamber of a cleaner body to filter a dust from a dust-laden air being drawn into the suction chamber through an air suction hole that is connected with the outside. The dust collecting container has a dust collecting casing having a connecting hole connected with the air suction hole and a discharge portion for discharging the drawn air, and a filter assembly having at least three filters, and removably mounted at the discharge portion. With the plurality of filters that respectively and consecutively filter from the largest to the most minute particles of the dust-laden air drawn in the dust collecting chamber, the dust collecting container is rarely blocked even for a long period of use.
    Type: Grant
    Filed: July 24, 2003
    Date of Patent: December 5, 2006
    Assignee: Samsung Gwangju Electronics Co., Ltd.
    Inventors: Hyun-Ju Lee, Dong-Hun Yoo
  • Patent number: 7128771
    Abstract: 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: Grant
    Filed: June 23, 2004
    Date of Patent: October 31, 2006
    Assignee: Total Filtration Manufacturing
    Inventor: Charles Michael Harden
  • Patent number: 7118608
    Abstract: 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: Grant
    Filed: April 12, 2004
    Date of Patent: October 10, 2006
    Inventor: William S. Lovell
  • Patent number: 7115156
    Abstract: A filter system for filtering intake air for a combustion engine, in particular an air filter for a commercial vehicle, having a tubular housing, an inlet situated in the housing through which unfiltered air to be cleaned can be supplied, an outlet situated in the housing through which cleaned air can be discharged, an arrangement of filters situated in the housing between the inlet and outlet which form a seal such that air from the inlet must flow through the filter arrangement to reach the outlet, the housing having an opening for replacement of the filter which can be closed and sealed by a housing cover, and in which at least one prefilter, one main filter and one secondary filter are situated in the housing in axial succession one after the other in the direction of air flow through the filter system.
    Type: Grant
    Filed: March 15, 2004
    Date of Patent: October 3, 2006
    Assignee: Mann & Hummel GmbH
    Inventors: Jukka Schaerlund, Reinhard Oelpke
  • Patent number: 7105037
    Abstract: A semiconductor manufacturing process facility requiring use therein of air exhaust for its operation, such facility including clean room and gray room components, with the clean room having at least one semiconductor manufacturing tool therein, and wherein air exhaust is flowed through a region of the clean room. The facility includes an air exhaust treatment apparatus arranged to (i) receive air exhaust after flow thereof through said region of said clean room, (ii) produce a treated air exhaust, and (iii) recirculate the treated air exhaust to an ambient air environment in the facility, e.g., to the gray room of the facility.
    Type: Grant
    Filed: September 26, 2003
    Date of Patent: September 12, 2006
    Assignee: Advanced Technology Materials, Inc.
    Inventors: W. Karl Olander, Joseph D. Sweeney, Luping Wang
  • Patent number: 7094266
    Abstract: A novel sanitary and odor free workstation having two spaced apart, transparent plate members that are operatively interconnected to a vacuum source and in combination define a vacuumed air evacuation area that functions as a workstation between the plate members. Thus, a user can easily position an object of choice within the workstation, or even adjacent thereto, and have hands free controlled access that allows manipulation of the object yet protects the user, and others, from physical or airborne transference of bacterial matter and from any undesirable odors emitting there from and also protects the user's eyes from any potential damage, respectively. Furthermore, the workstation is portable, self-contained, safe, sanitary and is substantially usable with any object of choice.
    Type: Grant
    Filed: April 16, 2004
    Date of Patent: August 22, 2006
    Inventor: Robert D. Montgomery
  • Patent number: 7094270
    Abstract: The invention refers to a composite filter for filtering a stream of ambient air including at least one non-prebonded upstream tier and one non-prebonded downstream tier, wherein the ratio of absolute pore volume of upstream tier to downstream tier RAPV>2, and the absolute projected fiber coverage of upstream tier and of downstream tier APFC>95%. Further, the invention refers to a method of making such a composite filter including the steps of (a) laying down a filtration material onto a support to form the upstream non-prebonded tier, (b) depositing onto the upstream tier the downstream non-prebonded tier, and (c) bonding the tiers to form a composite filter having a unitary stratified structure.
    Type: Grant
    Filed: March 1, 2002
    Date of Patent: August 22, 2006
    Assignee: Airflo Europe N.V.
    Inventors: Jan Schultink, Bas Schultink
  • Patent number: 7090772
    Abstract: A filter bag assembly includes an outer bag having an open end, a closed end opposite the open end, and a longitudinal axis. The open end of the outer bag is sized and shaped for receiving liquid to be filtered. A filter member is loosely mounted in the outer bag and has a pair of opposed open ends and a plurality of longitudinally extending pleats. Each of the pleats projects generally outwardly in a radial direction.
    Type: Grant
    Filed: March 15, 2005
    Date of Patent: August 15, 2006
    Assignee: Eaton Corporation
    Inventors: John Franklin Pearson, Wald Lodewyckx
  • Patent number: 7083663
    Abstract: Filter devices, suitable for rendering pathogenic microorganisms non-viable and capable of regeneration to serve as filter devices for applications such as diesel engines where combustible particulates are trapped, include at least one porous filter element which is capable of electrically resistive heating to a temperature such that pathogens are rendered non-viable, and/or to a regeneration temperature such that combustible particulates are destroyed.
    Type: Grant
    Filed: October 30, 2003
    Date of Patent: August 1, 2006
    Assignee: The Regents of the University of Michigan
    Inventors: Albert J. Shih, Edward J. Cookson
  • Patent number: 7029518
    Abstract: A method and apparatus for preventing contamination of a substrate or a substrate surface, and particularly relates to prevention of contamination of raw materials, semi-finished products, base materials of products and substrate surface in a high-tech industry such as an in the production of semiconductors and liquid crystals. A gas coming into contact with a base material or substrate is purified by dust removing apparatus and adsorption and/or absorption apparatus so that the concentration of fine particles in the gas is below class 1,000 and a non-methane hydrocarbon concentration is below 0.2 ppm. Thereafter, the base material or the substrate surface is exposed to this gas.
    Type: Grant
    Filed: March 15, 2005
    Date of Patent: April 18, 2006
    Assignee: Ebara Research Co., Ltd.
    Inventors: Toshiaki Fujii, Tsukuru Suzuki, Hidetomo Suzuki, Kazuhiko Sakamoto
  • Patent number: 7008468
    Abstract: A vacuum system is enclosed in a housing having two vertically spaced chambers, the lower one enclosing the vacuum generating motor means and the upper chamber defining the vacuum chamber and having therein prefilter and filter means as well as at least two vacuum ports to which vacuum wands are selectively attached, each port being sealed when not in use.
    Type: Grant
    Filed: October 1, 2002
    Date of Patent: March 7, 2006
    Inventor: Kevin Ashe
  • Patent number: 6979359
    Abstract: 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: Grant
    Filed: July 16, 2003
    Date of Patent: December 27, 2005
    Inventor: Peter J. Laiti
  • Patent number: 6966939
    Abstract: The invention describes a multi-layer filter structure and the use of a multi-layer filter structure for the dust removal from gases, wherein a coarse dust filter layer, a fine dust filter layer, and a support layer are disposed behind one another in the direction from the inflow side to the outflow side, and which is designed such that the fiber diameter distribution within the coarse dust filter layer and fine dust filter layer has a gradient, and that the fiber diameters of the coarse dust filter layer and fine dust filter layer continually decrease from the inflow side to the outflow side. This multi-layer filter structure may be used in a filter cassette for industrial dust removal, as well as in a stationary or mobile home dust cleaning device.
    Type: Grant
    Filed: April 23, 2003
    Date of Patent: November 22, 2005
    Assignees: Branofilter GmbH, Sandler AG
    Inventors: Jürgen Rammig, Uwe Schmierer, Ulrich Hornfeck, Roland Straub
  • Patent number: 6962619
    Abstract: An air decontamination system that cleans air which has been contaminated by a terrorist attack or other means of contamination. The air is drawn into the system, cleaned through the use of filters, and exits the system into an enclosed area where people have gathered to await passage of the danger. The unit is easily turned on and off via a switch.
    Type: Grant
    Filed: June 24, 2004
    Date of Patent: November 8, 2005
    Inventors: Richard DeRosa, Robert Hockenberry
  • Patent number: 6949131
    Abstract: A compact ventilator with high efficiency thermal exchanger and a conveniently exchangeable air filter. The conveniently exchangeable filter enables a ventilator with thermal exchanger to be easily and regularly maintained and serviced, thereby enhancing its practical utility.
    Type: Grant
    Filed: January 2, 2004
    Date of Patent: September 27, 2005
    Inventor: Kui Wong Yeung
  • Patent number: 6929684
    Abstract: An air cleaning apparatus includes an air cleaning unit moved in a vertical direction to clean room air, allowing the room air to be effectively and uniformly cleaned in a short period of time. The air cleaning apparatus includes a longitudinal cabinet to stand on a support surface. An air cleaning unit is installed in the cabinet to move in the vertical direction, and is provided with a blowing unit and a filtering unit to clean air. An elevating unit is provided at at least one of the cabinet and the air cleaning unit to move the air cleaning unit in the vertical direction. The air cleaning apparatus also includes upper and lower sensors, and a control unit. The upper and lower sensors are provided on upper and lower portions of the cabinet, respectively, to sense air pollution levels of upper and lower parts of a room. The control unit controls the air cleaning unit so that the air cleaning unit moves upward or downward, according to data obtained from the upper and lower sensors.
    Type: Grant
    Filed: September 30, 2003
    Date of Patent: August 16, 2005
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jun Eui Chang, Kyung Ho Chai
  • Patent number: 6926828
    Abstract: A fluid filter is provided with a case body defining therein a holder and having pressing portions formed on the internal wall surface of the case body. The pressing portions can compress a filter medium housed in the holder. The pressing portions are pressed against the filter medium housed in the holder to compress it and form a compressed region at a desired position of the filter medium, where the rate of capturing extraneous substances is increased. Thus, even if various sizes of the extraneous substances are contained in a fluid introduced through the inlet into the holder, the filter medium can capture the extraneous substances in its entirety. The degree of compression of the compressed region in the filter medium changes depending on the height of each pressing portion.
    Type: Grant
    Filed: January 23, 2003
    Date of Patent: August 9, 2005
    Assignee: INOAC Corporation
    Inventors: Teruo Shiraishi, Fuminori Horio
  • Patent number: 6869458
    Abstract: A bioclean room is formed surrounded by a frame body with side portions of the frame opened and curtains to be selectively opened and shut to cover opened side portions of the frame body. An air flow passage is equipped with an air cleaning device to deliver the air in the frame body along a top plate to an air blow duct above the patient's head through which clean air is blown into the bioclean room. The frame body is equipped with an opening on the head side of the patient through which a medical console can be received inside the bioclean room when the frame body is brought into abutment against a wall.
    Type: Grant
    Filed: May 5, 2003
    Date of Patent: March 22, 2005
    Assignee: Sanki Engineering Co., Ltd.
    Inventors: Kazuaki Iijima, Takashi Yachi, Saburo Takagi
  • Patent number: 6866693
    Abstract: A washable air filter for an internal combustion engine which has high durability and can be washed with ease to reuse it is disclosed. The washable air filter includes an outer cylindrical member 10; an inner cylindrical member 11; a first filter element 30 formed from a stainless mesh sheet which is folded in a pleated-form having peaks and valleys arranged alternately and provided between the outer cylindrical member 10 and the inner cylindrical member 11; and a second filter element 33 provided between the outer cylindrical member 10 and the first tilter element 30. Since the washable air filter uses the filter element made from the stainless mesh sheet, it is possible to effectively remove dust particles from air. Further, the washable air filter can be reused because dust particles are removed off the filter element by washing after use.
    Type: Grant
    Filed: June 6, 2002
    Date of Patent: March 15, 2005
    Assignee: Shuetsutechnica Co., Ltd.
    Inventor: Tsutomu Igarashi
  • Patent number: 6852184
    Abstract: An apparatus for fixing the position of a metal end cap on a filter element includes a filter support, an inductive heater, and a drive system for moving the heater relative to the filter support. Preferably, the apparatus also includes a second inductive heater. Where two heaters are used, the drive system simultaneously moves the first and second inductive heaters in substantially opposite directions, using a control shaft extending between first and second support pillars. Each end of the control shaft is threaded, and the threading on the second end is formed in an opposite direction to the threading on the first end. Each of the heaters is threadably connected to the control shaft. A motor is provided for rotating the control shaft. A method of forming a filter cartridge, using the disclosed apparatus, is another aspect of the invention.
    Type: Grant
    Filed: November 7, 2001
    Date of Patent: February 8, 2005
    Assignee: Honeywell International, Inc.
    Inventors: Gary J. Osterfeld, Gary G. Parent
  • Patent number: 6827763
    Abstract: A method and apparatus for filtering particulate and condensation are provided. The filter is a multi-state filter that reduces contamination from sources other than the desired source by having its filtering components encased and compacted together.
    Type: Grant
    Filed: December 19, 2002
    Date of Patent: December 7, 2004
    Assignee: SPX Corporation
    Inventors: Phillip McGee, Robert Kochie, Durval S. Ribeiro
  • Patent number: 6825136
    Abstract: A filtering screen comprises a fine woven wirecloth filtering mesh (4) disposed above a coarse woven wirecloth support mesh (2). An intermediate woven wirecloth mesh (3) is disposed between the fine woven mesh (4) and the coarse woven mesh (2), the intermediate mesh (3) extending over a proportion of the area of the screen at or towards the rear thereof, said proportion being in the range of 20% to 40% of the area of the screen, and preferably substantially one third of the area of the screen.
    Type: Grant
    Filed: November 25, 2002
    Date of Patent: November 30, 2004
    Assignee: United Wire Limited
    Inventor: Gordon James Cook
  • Publication number: 20040211160
    Abstract: The invention describes a multi-layer filter structure and the use of a multi-layer filter structure for the dust removal from gases, wherein a coarse dust filter layer, a fine dust filter layer, and a support layer are disposed behind one another in the direction from the inflow side to the outflow side, and which is designed such that the fiber diameter distribution within the coarse dust filter layer and fine dust filter layer has a gradient, and that the fiber diameters of the coarse dust filter layer and fine dust filter layer continually decrease from the inflow side to the outflow side.
    Type: Application
    Filed: April 23, 2003
    Publication date: October 28, 2004
    Applicants: BRANOFILTER GmbH, SANDLER AG
    Inventors: Jurgen Rammig, Uwe Schmierer, Ulrich Hornfeck, Roland Straub
  • Patent number: 6805729
    Abstract: A manifold assembly including a unitary manifold body including at least two component ports and an integral channel system connecting the component ports in series, and at least two fluid-treating components directly connected to the component ports in a substantially gas-tight manner. The fluid-treating components can include at least one of a coalescer, an adsorber, an absorber, a strainer, and a filter. At least one of the component ports includes an inner port section and an outer port section, the outer port section including a flow distributor arranged around and concentric to the inner port section.
    Type: Grant
    Filed: October 29, 2002
    Date of Patent: October 19, 2004
    Assignee: H2Gen Innovations, Inc.
    Inventors: Kim Hong Lim, Franklin D. Lomax, Jr., John S. Lettow, Khalil M. Nasser
  • Patent number: 6793717
    Abstract: The present invention includes a filtered mask enclosure having an exterior portion and interior regions within the exterior portion such that the interior regions have a filtering region and a purging region connected to the filtering region. The present invention further includes a method of removing a first contaminant in a gas phase, a second contaminant in a solid phase, and a third contaminant having an electrical charge from a purge gas and flowing the purge gas through a vicinity of a mask while exposing a wafer with light through the mask.
    Type: Grant
    Filed: June 11, 2003
    Date of Patent: September 21, 2004
    Assignee: Intel Corporation
    Inventors: Han-Ming Wu, Giang Dao
  • Publication number: 20040173178
    Abstract: An intake air filter for an internal combustion engine is provided. The intake air filter has at least one main filter, at least one fine filter, and a circumferential sealing member that is formed on the main filter. The fine filter is fixedly connected with the sealing member.
    Type: Application
    Filed: February 18, 2004
    Publication date: September 9, 2004
    Applicant: Andreas Stihl AG & Co., KG
    Inventors: Heinz Hettmann, Sebastian Friedrich
  • Publication number: 20040163368
    Abstract: A dust collecting container for a vacuum cleaner is removably mounted in a suction chamber of a cleaner body to filter a dust from a dust-laden air being drawn into the suction chamber through an air suction hole that is connected with the outside. The dust collecting container has a dust collecting casing having a connecting hole connected with the air suction hole and a discharge portion for discharging the drawn air, and a filter assembly having at least three filters, and removably mounted at the discharge portion. With the plurality of filters that respectively and consecutively filter from the largest to the most minute particles of the dust-laden air drawn in the dust collecting chamber, the dust collecting container is rarely blocked even for a long period of use.
    Type: Application
    Filed: July 24, 2003
    Publication date: August 26, 2004
    Applicant: SAMSUNG GWANGJU ELECTRONICS CO., LTD.
    Inventors: Hyun-Ju Lee, Dong-Hun Yoo
  • Publication number: 20040159239
    Abstract: According to the present invention, the multi-phase HVAC filtration system provides a unitary device which performs basic filtration, odor-elimination, high-efficiency filtration and adds fragrance to the climate-controlled area.
    Type: Application
    Filed: February 14, 2003
    Publication date: August 19, 2004
    Inventor: Daniel A. Nagem
  • Patent number: 6776824
    Abstract: The invention provides a portable or hand-held vacuum cleaner that includes a filtration system or filtration module that can pick up particles and contaminants. It has a first passive stage (such as a HEPA filter) to collect dust particles, and contaminants over a predetermined size. The invention also includes an active stage filter(such as an ozone generator) which may include one or more chemical (or biological) agents effective to kill bacteria, viruses, and the like.
    Type: Grant
    Filed: January 11, 2002
    Date of Patent: August 17, 2004
    Inventor: Sheree H. Wen
  • Patent number: 6766636
    Abstract: The invention provides a gas turbine intake air filter unit, wherein flow resistance of intake air passing through a tertiary filter layer does not become unreasonably great despite the filter layers are increased from two stages to three stages, and a balance of collecting efficiency of the filter layers and the intake air flow resistance is optimized. A weather louver 10, a primary filter layer 11, a secondary filter layer 12, and a tertiary filter layer 13 are sequentially disposed from an upstream side in the filter unit 1 installed at an upstream side end portion of an intake duct 2 communicating with a gas turbine 3, at least a recess 13e is formed toward a downstream side of the intake air flow A′ on an end face filter layer portion 13a that is a constituent of the tertiary filter layer 13 and is disposed orthogonally to the intake air flow A′ inside the intake duct 2.
    Type: Grant
    Filed: January 8, 2003
    Date of Patent: July 27, 2004
    Assignee: The Kansai Electric Power Co., Inc.
    Inventors: Noriya Shingu, Mitsuru Dougahara, Hidemasa Takashima, Shigeru Yoshitake
  • Patent number: 6764527
    Abstract: A honeycomb structure comprising at least one main honeycomb structure 10 and sub-honeycomb structures 21, 22 axially disposed, in series, on both end surfaces of the main honeycomb structure 10. Partial plugs 15 are constituted for some of the cells 11 of the main honeycomb structure 10 by facing the intersecting portions of partitioning walls 211, surrounding the cells of the sub-honeycomb structure 21 disposed adjacent to the main honeycomb structure with some of the cells of main honeycomb structure, and the arrangement of the partial plugs 15 at one end surface 101 of the main honeycomb structure differs from that at the other end surface of the main honeycomb structure 10.
    Type: Grant
    Filed: February 5, 2002
    Date of Patent: July 20, 2004
    Assignee: Denso Corporation
    Inventors: Mikio Ishihara, Mamoru Nishimura
  • Patent number: 6764532
    Abstract: A particulate filter for an exhaust system having an exhaust flow and a nominal flow area includes a housing and a plurality of plates arranged parallel to each other within the housing. Each plate has a plurality of orifices and a plurality of micropockets configured to trap exhaust particulates.
    Type: Grant
    Filed: March 3, 2003
    Date of Patent: July 20, 2004
    Assignee: General Motors Corporation
    Inventor: Shi-Wai S. Cheng
  • Patent number: 6746504
    Abstract: A gas filler device for use in medical procedures such as laparoscopy is disclosed. Preferably, the gas filter device includes a housing having a first side wall and a second side wall, and a gas filter including a porous element including a hydrophobic membrane, the gas filter device allowing gas to pass through the porous filter element and the first side wall.
    Type: Grant
    Filed: May 8, 2003
    Date of Patent: June 8, 2004
    Assignee: Pall Corporation
    Inventor: Charles S. Booth
  • Publication number: 20040089154
    Abstract: An inline air filter for fuel injected engines that provides for the installation of the air filter into the air intake line of an air intake system of a fuel injected engine. The inline air includes a foam filter, a foam filter mesh, and a mesh filter. The foam filter is made from a flexible reticulated polyurethane foam material that allows proper air flow while maintaining good filtering capability. The inline air filter is installed onto an air intake assembly of the fuel injected engine by splicing the inline air filter into an air intake tube.
    Type: Application
    Filed: June 27, 2003
    Publication date: May 13, 2004
    Inventors: Hung T. Le, Hieu T. Le, Tung T. Le