Patents Examined by Julia L. Wun
  • Patent number: 10258928
    Abstract: A spiral wound membrane module adapted for hyperfiltration and including at least one membrane envelope and feed spacer sheet wound about a central permeate tube to form an inlet and outlet scroll face and an outer periphery, wherein the feed spacer sheet includes: i) a feed entrance section extending along the permeate collection tube from the inlet scroll face toward the outlet scroll face, ii) a feed exit section extending along the outer periphery from the outlet scroll face toward the inlet scroll face, and iii) a central feed section located between the feed entrance section and the feed exit section; and wherein the feed entrance section has a median resistance to flow in a direction parallel to the permeate collection tube that is less than 25% of the median resistance to flow of the central feed section in a direction perpendicular to the permeate collection tube.
    Type: Grant
    Filed: March 18, 2015
    Date of Patent: April 16, 2019
    Inventors: Steven D. Jons, Michael S. Koreltz, Luke Franklin
  • Patent number: 10260997
    Abstract: A microorganism concentrator includes a water storage part that stores water sample therein and a filter that partitions the water storage part into a supply side and a drain side for the water sample. The microorganism concentrator concentrates microorganisms that are too large to pass through the filter on the supply side by moving the water sample on the supply side to the drain side of the water storage part. In the microorganism concentrator, the filter is arranged in such a way that no vertically downward force is applied to a surface of the filter on the supply side.
    Type: Grant
    Filed: July 2, 2014
    Date of Patent: April 16, 2019
    Inventors: Yasuo Fukuyo, Yukio Hosaka, Akira Eto, Akiko Nakata
  • Patent number: 10189498
    Abstract: A power steering tank baffle includes a filter member, a hood member and a rib member. The filter member includes an inflow portion and an outflow portion, the inflow portion including a first plurality of openings and a second plurality of openings. The hood member is disposed over the inflow portion. The rib member connects the filter member and the hood member, the rib member being disposed on the inflow portion so as to separate the first plurality of openings and the second plurality of openings.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: January 29, 2019
    Assignee: Nissan North America, Inc.
    Inventors: Travis James Parak, Tok Lau
  • Patent number: 10183236
    Abstract: A chromatography column distribution system includes a set of first bed support ribs extending radially from an inner, first radial position near the center of the plate to an outer radial position nearer to the periphery of the plate and at least one set of intermediate bed support ribs starting at an intermediate radial position and extending to an outer radial position nearer to the periphery of the plate. Channels are formed between adjacent bed support ribs. The desired local effective channel height varies in accordance with a predetermined formula from the first radial position to the outer radial position. The transverse cross-sectional areas of the ribs or the channels are adapted such that the actual local effective channel height is within 15% of the desired local effective channel height over portions of the distribution system situated between the first radial position and the outer radial position.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: January 22, 2019
    Assignee: GE Healthcare Bio-Sciences AB
    Inventor: Klaus Gebauer
  • Patent number: 10179302
    Abstract: A filter system has a filter element in a filter housing having a coupling device configured to detachably couple and mount the filter system onto a receiving member external to the filter system. The coupling device has one or more inwardly projecting coupling elements which lockably engage with coupling contours of the receiving member by a sliding-rotating movement.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: January 15, 2019
    Assignee: MANN+HUMMEL GmbH
    Inventors: André Roesgen, Robert Hasenfratz, Fabian Wagner, Christian Thalmann, Frank Pflueger, Petra Skorpíková
  • Patent number: 10179743
    Abstract: A device for controlling injection of chemical into a boiler and a chemical injection method can control an injection amount such that a chemical concentration is obtained as per a target even in a boiler feed-water facility where a flow rate of feed-water varies to a large extent in a short period. The device controls an amount discharged by a chemical injection pump in proportion to a flow rate measured by a flowmeter. An average chemical concentration in a feed-water is calculated from an amount of feed-water per predetermined period obtained by the flowmeter and a reduction in the amount of chemical in a tank per predetermined period obtained by a sensor. The chemical injection pump is controlled on the basis of the calculated average chemical concentration and a preset target chemical concentration of the feed-water so that the average chemical concentration is within the target chemical concentration range.
    Type: Grant
    Filed: February 23, 2015
    Date of Patent: January 15, 2019
    Inventors: Chikako Shimpo, Yukimasa Shimura
  • Patent number: 10112858
    Abstract: Media beds containing worms living in an oxygenated aqueous environment are provided for the remediation of water containing excreted and other oxidizable organic or chemical waste. The media beds may include cultivated plant life in addition to the cultivated worm population for the uptake of nitrates, as well as other nutrients rendered soluble through digestion of the worms to remediate water to levels sufficient to be safely returned to the environment; alternatively the water may be remediated to higher nitrate levels in the absence of plants so that the water can be used in subsequent fertilization operations outside the waste treatment system. The system further includes cultivated microbial populations that may be present in the media beds and/or in separate bioreactors within the system.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: October 30, 2018
    Inventors: Paul W. Nickerson, David K. Foster
  • Patent number: 10112151
    Abstract: A functional polymer membrane including a porous support and a crosslinked polymer electrolyte, in which the film thickness of the functional polymer membrane is smaller than 100 ?m, the crosslinked polymer electrolyte is a crosslinked polymer formed by subjecting a composition including a monomer having a (meth)acrylamide skeleton to a polymerization curing reaction, and the proportion of elemental oxygen in the elemental composition excluding elemental hydrogen and helium at the surface of the porous support is from 14.0 atom % to 25.0 atom %; and a method for producing the same are provided.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: October 30, 2018
    Assignee: FUJIFILM Corporation
    Inventors: Tetsufumi Takamoto, Kuniyuki Kaminaga
  • Patent number: 10099181
    Abstract: In a hollow fiber membrane module including a housing case, potting material loaded into the housing case, a cap attached to each of both ends of the housing case, and an O-ring closely held by the potting material and the cap, a whole area of the O-ring between a first contact point and a second contact point is exposed when the area is viewed from a central axis passing through a center of the ring shape of the O-ring, the first contact point being a point of contact between the O-ring and the cap, which faces inner cavity defined by an end surface of the potting material facing the cap, an inner circumferential surface of the O-ring and an inner circumferential surface of the cap, and the second contact point being a point of contact between the O-ring and the potting material, which faces the inner cavity.
    Type: Grant
    Filed: August 15, 2016
    Date of Patent: October 16, 2018
    Inventor: Tohru Taniguchi
  • Patent number: 10065139
    Abstract: A filter module has hollow fibers which are combined into fiber bundles having end face pottings. The pottings of the fiber bundles are received into a common end disk.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: September 4, 2018
    Assignee: MANN+HUMMEL GmbH
    Inventors: Frank Ehlen, Tobias Woerz, Sabine Giesselmann, Jasmine Jarczak, Marcel Mayer, Steffen Schuetz
  • Patent number: 10065878
    Abstract: A method for the forced dewatering, by pressing, of saline residues produced by drinking water production, or by the treatment of municipal or industrial wastewaters, in which method the saline residues are introduced into the cylinder (12a) of a piston press (12) comprising flexible drains (12e) formed by flexible sheaths from a material that is permeable to liquid but impermeable to solids, each drain (12e) comprising an inner passage that opens into an associated opening (12g), the press operating in batches, and characterized in that during pressing, the piston carries out reciprocal movements and applies alternating and variable pressures to the sludge, while the flexible drains are deformed, the liquid pressed out from the product passing through the wall of the drains and being discharged as a filtrate, while the dewatered sludge remains outside the drains and is discharged by opening the press.
    Type: Grant
    Filed: May 19, 2014
    Date of Patent: September 4, 2018
    Assignee: DEGREMONT
    Inventor: Jean-Michel Faccioli
  • Patent number: 10046998
    Abstract: The invention relates to a surface-treated calcium carbonate for binding and bioremediating hydrocarbon-containing compositions, to a method for binding and bioremediating hydrocarbon-containing compositions as well as to the use of surface-treated calcium carbonate for binding and bioremediating hydrocarbon-containing compositions and to a composite material comprising the surface-treated calcium carbonate and a hydrocarbon-containing composition.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: August 14, 2018
    Assignee: Omya International AG
    Inventors: Nicola Di Maiuta, Patrick Schwarzentruber, Michael Skovby
  • Patent number: 9987573
    Abstract: An internally fed drum filter for treating waste water, includes an inlet distribution arrangement for distributing waste water entering the drum filter via an inlet duct, characterized in that the inlet distribution arrangement includes an adjustable flow deflection member arranged near the outflow opening of the inlet duct, downstream thereof, for adjusting the flow characteristics of waste water entering the drum filter via the inlet duct.
    Type: Grant
    Filed: July 12, 2013
    Date of Patent: June 5, 2018
    Inventor: Arie Kluit
  • Patent number: 9987578
    Abstract: Composite filter media is formed from multiple layers of media material including a nanofiber media layer, where the layers are laminated, bound, or otherwise composited to each other. The composite filter media can comprise at least one nanofiber layer comprising polymeric media material having a geometric mean fiber diameter of about 100 nm to 1 ?m, and fibers configured in a gradient such that ratio of the geometric mean diameter of fibers at the upstream face of the nanofiber layer to the geometric mean diameter of fibers at the downstream face of the nanofiber layer is about 1.1 to 2.8, preferably about 1.2 to 2.4.
    Type: Grant
    Filed: August 1, 2014
    Date of Patent: June 5, 2018
    Inventors: William C. Haberkamp, Eric A. Janikowski, Barry Mark Verdegan, Christopher E. Holm, Huanling Liu, Kyle Ellison, Mark T. Wieczorek
  • Patent number: 9962656
    Abstract: A method is provided for using forward osmosis to remove impurities dissolved in an aqueous-based feed solution, where the method includes directing a solvent past a first side of a forward osmosis membrane and the feed solution is directed past a second side of the forward osmosis membrane, the solvent having a higher osmotic pressure than the feed solution so as to draw water across the membrane thereby diluting the solvent and concentrating the impurities in the feed solution, where the solvent is an amine-terminated branched PEG, such as amine-terminated glycerol ethoxylate, amine-terminated trimethylolpropane ethoxylate, or amine-terminated pentaerithritol ethoxylate, for example. The method further includes regenerating the solvent by exposing the diluted solvent to a gas containing CO2, whereby the CO2 is absorbed by the solvent, facilitating substantial separation of the solvent from water.
    Type: Grant
    Filed: September 21, 2016
    Date of Patent: May 8, 2018
    Assignee: NRGTEK, INC.
    Inventor: Subramanian Iyer
  • Patent number: 9957931
    Abstract: The present disclosure provides a suction filter that filters a fuel inside a fuel tank of a vehicle. The suction filter includes a filter element, a partitioning wall element, a passage element, and an open/close valve. The filter element is disposed in and exposed inside of the fuel tank. The filter element filters a stored fuel stored in the fuel tank. The partitioning wall element is arranged in the inside space to divide the inside space into a first space and a second space that is lower than the first space. The inlet to take in the filtered fuel is open in the second space. The passage element defines an inflow opening open in the first space, an outflow opening to which a negative suction pressure is applied through the inlet, and a flow passage through which the filtered fuel flows.
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: May 1, 2018
    Inventors: Kiyomori Kobayashi, Norihiro Hayashi
  • Patent number: 9850150
    Abstract: A subsurface sewage is provided and includes a plurality of leaching members oriented substantially vertically. A first volume defined within each of the plurality of the leaching members forms a void therein and includes a periphery, a top face that defines a first substantially horizontal plane, and a bottom face that defines a second substantially horizontal plane. A permeable enclosure is wrapped substantially around the periphery of each leaching member and a system frame maintains a location and a position of the plurality of the leaching members. A filter media is disposed in a second volume defined between at least two of the plurality of the leaching members. A leaching member balancing pipe is configured to hydraulically connect at least one of the plurality of the leaching members to at least one other of the plurality of the leaching members. A distribution pipe is configured to hydraulically connect at least one of the plurality of the leaching members to a source of an effluent flow.
    Type: Grant
    Filed: October 4, 2013
    Date of Patent: December 26, 2017
    Inventor: Richard Couch
  • Patent number: 9828271
    Abstract: Disclosed is a modified activated sludge-based two-compartment treatment method for processing nitrate-contaminated drinking water. Raw water is firstly sent to a first TiO2-modified denitrifying activated sludge bioreactor (2), wherein organic carbon source is added in a controlled amount, and nitrate is partly reduced with nitrite being accumulated. Then, the effluent from the first bioreactor is sent to a second TiO2-modified denitrifying activated sludge bioreactor (3), wherein organic carbon source and hydrogen gas are supplemented, and remaining nitrate and accumulated nitrite are reduced to nitrogen gas. The denitrified effluent from the second bioreactor is sent to a settling tank (4), and TiO2-containing precipitates collected from the settling tank receive sequential alkaline and acidic treatment before being injected into the first bioreactor (2) for TiO2 recycling.
    Type: Grant
    Filed: December 12, 2012
    Date of Patent: November 28, 2017
    Assignee: Shenyang Institute Of Applied Ecology, Chinese Academy of Sciences
    Inventors: Bin Huang, Jianlin Li, Yi Shi, Xin Chen