Patents Examined by Ivars C. Cintins
  • Patent number: 7261816
    Abstract: A fuel cell system includes an ion-exchange filter, which is provided with a cartridge which is filled up with an ion-exchange resin. The cartridge includes one of a pressure-loss emphasizing type cartridge and an ion-exchange efficiency emphasizing type cartridge, which are selectively exchanged with each other, for a common case of the ion-exchange filter. The ion-exchange efficiency emphasizing type cartridge is one for an ion-exchange filter having a high pressure loss and high ion-exchange efficiency and, on the other hand, the pressure-loss emphasizing type cartridge is one for an ion-exchange filter having a pressure loss lower than that of the former ion-exchange filter and an ion-exchange efficiency lower than that of the former ion-exchange filter.
    Type: Grant
    Filed: November 29, 2004
    Date of Patent: August 28, 2007
    Assignees: Toyo Roki Seizo Kabushiki Kaisha, Nissan Motor Co., Ltd.
    Inventors: Koji Suzuki, Shinichiro Takemoto
  • Patent number: 7258785
    Abstract: A method and apparatus for separating oil and debris from urban water run-off, the apparatus being made up of a chamber which is mounted in a storm drain system and has an inner basin with a tilted wire wedge wire screen filter in the path of flow of the run-off, an organic absorber floats on the water as it is collected in the basin, and a discharge plate has a series of slots which are sized to regulate the flow rate of discharge of the water from the basin for removal through an outlet at the lower end of the chamber. The method and apparatus are conformable for use with existing storm drain systems along curbs or gutters as well as parking lots, runways and the like.
    Type: Grant
    Filed: October 7, 2003
    Date of Patent: August 21, 2007
    Inventors: Robert K. Weir, Steve E. Esmond, Larry Quinn
  • Patent number: 7252760
    Abstract: A waste liquid processing method comprising a solvent separation process for separating a chlorine-based organic solvent contained in a waste liquid; a first vaporization process that includes vaporization of the chlorine-based organic solvent remaining in the waste liquid after the solvent separation process; a collection process for collecting substances other than the chlorine-based organic solvent contained in the waste liquid after being vaporized in the first vaporization process; a second vaporization process for vaporizing the chlorine-based organic solvent remaining in the waste liquid after the first vaporization process and the collection process; a photo-oxidative decomposition process where photo-oxidation is used to decompose a chlorine-based organic gas generated in the first vaporization process and in the second vaporization process, and a post-treatment process for carrying out adsorption, absorption, and neutralization of a decomposition product gas generated in the photo-oxidative decompos
    Type: Grant
    Filed: October 22, 2002
    Date of Patent: August 7, 2007
    Assignee: Yamaha Corporation
    Inventors: Jun Yamamoto, Akira Osawa, Yoichi Nagasaki, Kunimasa Muroi
  • Patent number: 7241386
    Abstract: A water cleaner comprises: a filtering canister having a plurality of filtering holes formed through the canister and made of oxidation-reduction alloy for filtering off chlorine and other hazardous materials contained in the water when passing through the filtering holes formed through the canister; and a functional water-treatment material filled in the canister for killing bacteria or fungi, for removing pollutants, and for removing odor in the water for cleaning water in a water tank or reservoir.
    Type: Grant
    Filed: September 9, 2005
    Date of Patent: July 10, 2007
    Inventors: Chuan-Chi Huang, Kuo-Yuan Chan
  • Patent number: 7235179
    Abstract: The present invention relates to methods for the rejuvenation of cupric oxide having adsorbed arsenic from arsenic contaminated water. The rejuvenated cupric oxide may be recycled to again react with and adsorb arsenic in arsenic contaminated water.
    Type: Grant
    Filed: May 9, 2005
    Date of Patent: June 26, 2007
    Assignee: University of Wyoming
    Inventor: Katta Jayaram Reddy
  • Patent number: 7226536
    Abstract: A portable water filtration device includes a liquid-tight filter container and a filtration device mounted in the liquid-tight container. The filtration device includes an inlet opening extending through one of the walls and a first filtration device in liquid transfer connection with the inlet opening operative to receive and filter liquid flowing therethrough. A second filtration device is operative to receive liquid from the first filtration device and further filter the liquid flowing therethrough. The first and second filtration devices are selected from the group including ultraviolet, activated carbon and reverse osmosis filters, and an outlet opening extending through one of the walls then receives the treated water and releases the water from the filtration device. Finally, the liquid-tight filter container is operative to prevent liquid from entering the interior volume thereof thereby preventing contamination of the filtration device from accidental incursion of contaminants.
    Type: Grant
    Filed: July 31, 2006
    Date of Patent: June 5, 2007
    Inventor: Tyran Adams
  • Patent number: 7223347
    Abstract: The present invention provides an apparatus and method for filtering fluids with a compressible filter media within at least a portion of a housing inwardly compressible.
    Type: Grant
    Filed: January 29, 2004
    Date of Patent: May 29, 2007
    Assignee: WWETCO, LLC
    Inventors: Mark C. Boner, Paula K. Gurney
  • Patent number: 7217363
    Abstract: A filtration system for cleaning a fluid, typically water, that is contained in a tank having a rounded base and which cleans, during the backwash cycle, the filter media and, in particular, cleans the media in a usually stagnant area found in the rounded base of the tank. Most filtration system include a first pipe array located above the rounded base which provide for backwashing of the upper portion of the tank, but leaves the base area below the first pipe array stagnant and subject to the growth of harmful bacteria. The present invention adds a second array which is located in the base area and therefore is able to clean during the backwash cycle, an area that is left stagnant in most other systems. The second array is configured to follow the contours of the base of the tank to give it a greater cross sectional area than a flat array. This configuration results in greatly improved effectiveness over that provided by the conventional single flat array.
    Type: Grant
    Filed: May 14, 2004
    Date of Patent: May 15, 2007
    Inventor: Kevin Mulvey
  • Patent number: 7189326
    Abstract: The invention concerns the use of a material based on organic and/or inorganic fibres and chitosan for fixing metal ions contained in an effluent. The invention is characterised in that chitosan represents between 0.01 and 20% by dry weight of fibres and its degree of deacetylation is higher than 90%.
    Type: Grant
    Filed: July 15, 2002
    Date of Patent: March 13, 2007
    Assignee: Ahlstrom Corporation
    Inventors: Alain Domard, Eliane Espuche, Severine Despond, Noel Cartier
  • Patent number: 7172694
    Abstract: The filter assembly is adapted for use in filtering fluid flow in turbomachinery. The filter assembly includes a cylindrical housing, and a filter element disposed within the housing. The housing is adapted for fluid connection to a turbomachine. The filter element is adapted to filter fluid passing to the turbomachine. The filter element includes a fluid permeable core element defining a central core element flow channel through the filter element, a fluid permeable ion exchange resin layer disposed about the core element and adapted to remove mineral and organic acids from the fluid passing through the filter element, and a pleated filter media disposed about the ion exchange resin layer and core element. In another embodiment, the filter element has the pleated filter media disposed about the core element, and the fluid permeable ion exchange resin layer disposed about the core element and pleated filter media.
    Type: Grant
    Filed: January 26, 2004
    Date of Patent: February 6, 2007
    Assignee: Schroeder Industries, LLC
    Inventor: Christopher B Bortnik
  • Patent number: 7172695
    Abstract: A liquid treating apparatus includes a treating tank having at least two walls formed with a liquid inlet and a liquid outlet through each of which a liquid to be treated flows, respectively, and a filtering layer unit including an antibacterial filtering layer, an adsorptive filtering layer and a filtering layer, the filtering layer unit being disposed between the liquid inlet and outlet.
    Type: Grant
    Filed: March 19, 2004
    Date of Patent: February 6, 2007
    Assignee: Akechi Ceramics Kabushiki Kaisha
    Inventors: Yoshinari Kato, Satoshi Kameshima, Mitsuro Hyakumachi, Yoshihiro Taguchi, Hideki Watanabe, Hayato Horinouchi
  • Patent number: 7166225
    Abstract: A fluid filtering device includes a plurality of filtering wells and an angling mechanism which adjusts the angle of the membranes within the filtering wells relative to a line of a centrifuge where the line is perpendicular to the axis of rotation of a centrifuge and passes through the center of a major plane of the filtering device. The angling mechanism can include a wedge located between the center of rotation of a centrifuge and a swinging bucket of the centrifuge. The angling mechanism can also be located within each filtering well and can provide individually specified angles for each membrane, relative to the line of the centrifuge.
    Type: Grant
    Filed: March 22, 2005
    Date of Patent: January 23, 2007
    Assignee: Millipore Corporation
    Inventors: Aldo M. Pitt, Sara D. Gutierrez, Thomas G. Zermani, Jeffrey Busnach, Joseph J. Raneri, James C. Groves
  • Patent number: 7163625
    Abstract: The present invention provides a filtration device. The invention employs filter media wrapped into spirals about an apertured core. Fluid may flow radially inward or radially outward during filtration. Embodiments using multiple filter media and embodiments achieving a low pressure drop are also disclosed.
    Type: Grant
    Filed: November 14, 2000
    Date of Patent: January 16, 2007
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Bruce S. Williamson, Michael S. Brunner
  • Patent number: 7163621
    Abstract: A device for the treatment of an influent with a nonbonded media, and when the media becomes spent, the media is fluidized with a backwash fluid. Concentric inner and outer perforated cylinders contain a column of media therebetween. The influent is passed radially inwardly through the column of media and into the lower portion of the inner perforated cylinder, where the effluent is removed from the device. During a backwash operation, a backwash fluid is forced into the lower portion of the inner perforated cylinder, radially outwardly into the column of media to provide an upwardly directed drag force. When the drag force exceeds the buoyant weight of the media, the media is fluidized so that the contaminants can be removed therefrom by the backwash fluid.
    Type: Grant
    Filed: February 8, 2005
    Date of Patent: January 16, 2007
    Inventor: John D. Martin
  • Patent number: 7160441
    Abstract: The apparatus and methods of the present invention enable efficient and appropriate treatment of Urban Water Runoff, so that the treated Urban water Runoff can be can be introduced into public waterways without contaminating such waterways. The system apparatus utilizes adsorptive Organoclay media, mechanical filtration and ultraviolet sterilization. The methods and apparatus of the present invention remove contaminants from Urban Water Runoff to a level which enable the resulting effluent to meet appropriate standards for introducing the treated Urban water Runoff in to public waterways. The method and apparatus of water treatment of the present invention does not utilize chlorine containing compounds which, when combined with organic compounds can produce THM's that can become problematic when re-introduced to the downstream environment. The systems of the present invention can be made sufficiently compact so as to enable their use in remote locations.
    Type: Grant
    Filed: March 29, 2002
    Date of Patent: January 9, 2007
    Assignee: Clear Creek Systems, Inc.
    Inventors: Guy Timothy Gannon, Joseph Charles Gannon
  • Patent number: 7160467
    Abstract: An oil-water separator for use in a trench, which surrounds an oilfield. The separator is positioned in the ground such that an inlet conduit extends at about the same level as the bottom of the trench. The trench water is admitted into the housing, where it contacts a plurality of buoyant oil-absorbing members, causing the oil particles to adhere to the surface of the oil-absorbing members. An outlet conduit located downstream from the oil-absorbing members is connectable to a pump to cause the oil-free water to be pumped from the housing and diverted away from the trench.
    Type: Grant
    Filed: November 30, 2004
    Date of Patent: January 9, 2007
    Inventor: Rene James Landry, Sr.
  • Patent number: 7160468
    Abstract: A cooling system for a fuel cell system is provided with a circulation system including a circulation pump for circulating coolant, the coolant essentially consisting of water and glycol, a fuel cell connected to the circulation system so as to be cooled by the coolant, a heat exchanger connected to the circulation system so as to radiate heat from the coolant and a filter connected to the circulation system and configured to remove oxidation reaction product of the glycol from the coolant.
    Type: Grant
    Filed: March 23, 2004
    Date of Patent: January 9, 2007
    Assignee: Calsonic Kansei Corporation
    Inventor: Tsutomu Matsuzaki
  • Patent number: 7160453
    Abstract: A filter for removing contaminants from water. The filter has a first porous filter part formed by setting an active carbon in a high-molecular low-melt index polymeric binder. An inlet directs water to be filtered to the first porous filter part. An outlet directs water filtered by passage through the first porous filter part to a point of use.
    Type: Grant
    Filed: June 15, 2000
    Date of Patent: January 9, 2007
    Assignee: Mitsuboshi Belting Ltd.
    Inventors: Toshio Matsumura, Tsuyoshi Urabe, Shin-Ichi Sakata
  • Patent number: 7160452
    Abstract: A filtration device that enables efficient cleansing and rinsing of filtration media within a short time, in which filtration sand is not likely to become clogged, and in which unevenness within filtration sand is not likely to occur comprising a screw conveyor 32 provided within a cleansing tank 38, which is suspended from the upper portion of a filtration tank 2, a space 52 being formed between a filter bed 4 and a wire mesh 50, which are vertically separated, filtration media 14 provided on the wire mesh 50, and filtration media 54, having larger particle sizes than the filtration media 14, provided within the space 52 and a plurality of strainers 12 provided in the filter bed 4 and cleansing water spraying pipes 58 provided on an outer wall surrounding the space 52 and after the screw conveyor 32 is rotated and the filtration media 14 has been cleansed, cleansing water is sprayed from a filtered water discharge pipe 46 and the cleansing water spraying pipes 58, to expel contaminants through a raw water su
    Type: Grant
    Filed: July 29, 2003
    Date of Patent: January 9, 2007
    Assignee: Nihon Genryo Co., Ltd.
    Inventor: Yasuhiro Saito
  • Patent number: 7156994
    Abstract: A drinking water filter for filtering major water contaminates from tap water and other drinking water sources. The water filter a cylindrical cartridge for receiving a plurality of sponge filters used as dividers between different layers of filtration material and along a length of the cartridge. The sponge filters are designed to remove large and small sediments in the water from 1 to 100 microns in size and greater when the water is introduced through the cartridge. The layers of filtration material includes a layer of granulated zinc and copper alloy, a fine mesh carbon block, a layer of granulated ion exchange resin, a layer of granulated activated carbon and layer of granulated activated calcite. The carbon block and the granulated carbon material is used for removing chlorine, odor, color, cysts, protozoa and organic contaminants such as pesticides, herbicides, arsenic, mercury, and trihalomnethanes.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: January 2, 2007
    Inventor: Virgil L. Archer