Patents Examined by Jay H. Woo
  • Patent number: 6419836
    Abstract: A composition for treatment of water and soils comprises components A. CaCO3, B. at least one compound selected from the group consisting of calcium salts, including CaCl2 and Ca(NO3)2, and inorganic magnesium compounds, C. at least one compound selected from the group consisting of NaHCO3 and KHCO3, wherein the components A and B are present in a molar ratio of from 0.1:1 to 1:1, and wherein the components B and C are present in a molar ratio of from 1:3 to 1:1.
    Type: Grant
    Filed: August 30, 1996
    Date of Patent: July 16, 2002
    Inventor: Thomas Willuweit
  • Patent number: 6176903
    Abstract: A device for removing gases from fluids, in particular from a dialyzing fluid, includes a container, which in the position of normal use is provided with a bottom first orifice and a bottom second orifice. Disposed inside the container is a partition wall which divides the container into a first chamber having the first orifice and a second chamber having the second orifice. The partition wall extends from the container bottom up to near the container cover, forming a gap-shaped interstitial space between the first and second chamber, and the container cover. Provision is made in the container cover for a venting orifice that is sealed by a hydrophobic filter. In one preferred embodiment, the first and second chamber form a tube-in-tube arrangement. The device according to the invention allows for a high separation rate to be achieved with a compact and simple design.
    Type: Grant
    Filed: May 22, 1997
    Date of Patent: January 23, 2001
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventor: Ralf Wamsiedler
  • Patent number: 6171355
    Abstract: An arrangement for separating a hydrophobic liquid phase from a gaseous stream includes a coalescer filter, a housing, a gas flow direction arrangement, and a liquid collection arrangement. The coalescer filter includes a non-woven media of fibers. The housing includes an interior having a gas flow inlet and a gas flow outlet. The liquid collection arrangement is positioned within the housing construction and is oriented for receiving liquid collected from the coalescer filter and drained therefrom. Methods for conducting the separations are also provided.
    Type: Grant
    Filed: January 21, 1998
    Date of Patent: January 9, 2001
    Assignee: Donaldson Company, Inc.
    Inventors: Steven Scott Gieseke, Robert Allen Dushek
  • Patent number: 6149698
    Abstract: An apparatus, for installing a ventilation fan, highly effective for preventing dust, gas or the like from coming in a room has been provided by the present invention. An apparatus 1 for installing a ventilation fan comprises a L-shaped housing 5, for fixing a ventilation fan 3 therein, having an inside opening 7 positioned inside a wall W, and an outside opening which looks down and is positioned outside the wall W. The inside opening 7 is provided with a filter 11 for exhaust able to be slide vertically, and able to be taken in and out from the housing 5. Further, the inside opening 7 is covered with a metallic lid 13 able to be open or shut. A filter 15 for absorbed air is provided near the outside opening 9. The filter 15 is able to slide horizontally. The ventilation fan F is rotatable clockwise and counterclockwise. The filter 15 for absorbed is installed in absorbing air. The filter 11 for exhaust is installed in exhausting air.
    Type: Grant
    Filed: October 7, 1996
    Date of Patent: November 21, 2000
    Inventor: Kiyomasa Uehara
  • Patent number: 6110379
    Abstract: An apparatus and method for removing contaminating metal ions and sulfate ions from acidic aqueous solution such as waste mine water which features passing the solution between pairs of electrodes, each pair of electrodes impressed with a voltage selected according to specific ion species and then adding chemical agents to raise the pH and form precipitates of the metal and sulfate ions. A magnetic field is applied during at least the first mixing step. The precipitate is then separated from the water with settling and filtering steps. The clarified solution is treated by reverse osmosis to concentrate the ammonium.
    Type: Grant
    Filed: December 3, 1997
    Date of Patent: August 29, 2000
    Inventors: James Michael Overton, Stephen Ray Wurzburger
  • Patent number: 6106270
    Abstract: A soap compressor has a movable compressor plate mounted within a container. An extension member is coupled to the compression plate and is forcibly moved along with the compression plate by a drive member to forcibly urge the compression plate into a plurality of small bars of soap to compress the small bars of soap into a single large bar of soap. The drive member is a fluid operated cylinder connectable to the pressurized water system of a building by means of a fluid conduit and quick release valves. Alternately, the drive means is an electric motor having an output shaft rotating a gear along a toothed rack connected to the compression plate.
    Type: Grant
    Filed: May 14, 1997
    Date of Patent: August 22, 2000
    Assignee: Dianne T. Matthews
    Inventor: Jim Hardin
  • Patent number: 6096108
    Abstract: A mounting arrangement for an air cleaner assembly is provided. The mounting arrangement includes a framework construction and a compressible pad arrangement. The framework construction is configured for mounting on the frame of a system to which the air cleaner assembly is to be mounted. The compressible pad arrangement is positioned to be compressed against the air cleaner assembly, by the framework construction, during use, to achieve desirable advantage. Also, a combination of a mounting arrangement and air cleaner assembly is provided, as well as methods of preparation and use.
    Type: Grant
    Filed: October 22, 1997
    Date of Patent: August 1, 2000
    Assignee: Donaldson Company, Inc.
    Inventors: Paul R. Coulonvaux, Johan G. Dewit
  • Patent number: 6074450
    Abstract: A filter assembly for use in filtering air in an air conditioning system has a front grille through which air enters the assembly and a rear grille through which filtered air is exited. A frame is attached to the grilles, joining these grilles together to form a container structure. An air permeable filter element in the form of a pleated or undulating sheet is installed in the container structure, the opposite ends of the pleated sheet being attached to opposing sides of the frame. The pleated sheet runs between the front and rear grilles and extends from the top to the bottom of the grilles. The filter sheet has a filtering media which may be of microglass on the surface thereof which faces the front grille and a stiffened backing on the surface facing the rear grille.
    Type: Grant
    Filed: October 14, 1997
    Date of Patent: June 13, 2000
    Inventor: Robert R. Raber
  • Patent number: 6071418
    Abstract: A method and system for wastewater treatment is described and is particularly suitable for manure lagoons and pits. Specifically, an ozone gas is homogeneously distributed through an upper stratum of a contained liquid thereby creating an aerobic "cap", while still maintaining an anaerobic lower stratum. A perforated tube or plurality of tubes fixed within the upper stratum serves to distribute the ozone. Alternately, a buoyant vehicle propelled across the surface of the liquid may also serve to distribute the ozone and create the ozonated "cap". The vehicle provides an additional benefit of crust fragmentation and prevention thereby inhibiting and eliminating fly propagation, and hygienically improving lagoon or pit operation. In either embodiment, the ability to create an aerobic and anaerobic balance within the liquid facilitates a reduction in odor, a significant improvement of organic digestion and solids control, and a reduction in pathogens sometimes found in water recycled from the containment area.
    Type: Grant
    Filed: October 13, 1998
    Date of Patent: June 6, 2000
    Inventor: Paul Ling Tai
  • Patent number: 6039776
    Abstract: A cleaning device for avoiding dissipation of polluted air due to smoking, including a chair body, a gas-collecting funnel, a sucking device, a filtering box and a control circuit. A main power switch is disposed on the chair body. The gas-collecting funnel can be pulled downward and extensibly opened to restrain the polluted air due to smoking within the funnel. An ash tray is disposed on an arm rest of the chair body. A microswitch is installed at the bottom of the ash tray for controlling the operation of the sucking device. The polluted air is sucked from the funnel through a gas conduit into the filtering box to be filtered and purified by a filtering cotton and active carbon. Therefore, the air can be cleaned and recycled and the dissipation of polluted air is avoided.
    Type: Grant
    Filed: December 9, 1998
    Date of Patent: March 21, 2000
    Inventors: Yung-Ho Liue, Kung-An Chiang
  • Patent number: 6033450
    Abstract: The pressure drop through a passageway that flows a compressible fluid that flows axially with a vortex component is reduced by dividing the passageway into smaller parallel passageways. The vortex separator is combined with a deoiler that includes a rotatable inducer and porous media disk(s) in a lubrication system for removing the oil from the air where the oil is contaminated in the bearing compartments and gear boxes of a gas turbine engine.
    Type: Grant
    Filed: December 21, 1995
    Date of Patent: March 7, 2000
    Assignee: United Technologies Corporation
    Inventors: Allan D. Krul, J. Wesley Harris, Jr.
  • Patent number: 6027540
    Abstract: An apparatus for the removal of particulate matter from the gaseous product stream of an entrained flow coal gasifier which apparatus includes an initial screen, an intermediate screen which is aligned with the direction of flow of the gaseous product stream and a final screen transversely disposed to the flow of gaseous product and which apparatus is capable of withstanding at least a pressure differential of about 10 psi (68.95 kPa) or greater at the temperatures of the gaseous product stream.
    Type: Grant
    Filed: March 31, 1997
    Date of Patent: February 22, 2000
    Assignee: Destec Energy, Inc.
    Inventors: Peyton L. Smith, John C. Morse
  • Patent number: 6024775
    Abstract: A substantially sealed case for enclosing objects has at least one openable surface and an inlet-outlet port through a surface of the case, permitting the ingestion and expulsion of air during case thermal expansion and barometric pressure changes. The inlet-outlet port has an inlet passage and an outlet passage therethrough, with a check valve in the inlet passage permitting ingestion of air into the case through an inlet filter and blocking the expulsion of air therethrough. The inlet-outlet port also has a check valve in the outlet passage permits the expulsion of air from the case through an outlet filter and blocks the ingestion of air therethrough. A flexible membrane bag encloses the inlet and outlet filters, and may optionally include air treatment means for controlling the relative humidity and the oxygen content of air in the bag.
    Type: Grant
    Filed: August 6, 1997
    Date of Patent: February 15, 2000
    Inventors: Jack V. Miller, Ruth Ellen Miller
  • Patent number: 6024867
    Abstract: A counter top water filter unit intended for domestic use to be placed adjacent to a sink and having an inlet at its lower end which is coupled to the sink faucet. The filter unit includes a cylindrical-shaped carbon particle filter cartridge which has a longitudinal passage extending from one end to the other, and a removable pre-filter screen coaxial with the cartridge and surrounding the cartridge, both elements being removably mounted within a cylindrical filter housing, the housing being closed at its upper end and open at its lower end. A replaceable electronic display monitor unit is mounted in an outlet housing fitted to the top of the cylindrical filter housing. The state of the life-span of the filter cartridge is shown on the display monitor in terms of colored indicator lights which denote whether the filter cartridge is within, nearing an end to, and outside its expected life-span.
    Type: Grant
    Filed: May 12, 1997
    Date of Patent: February 15, 2000
    Assignee: Water Safety Corp. of America
    Inventor: Michael C. Parise
  • Patent number: 6017447
    Abstract: An oxygenated water cooler and method of operating the same for dispensing oxygen enriched water from a bottle installed on the cooler wherein an oxygen source integrated into the cooler delivers oxygen through the water to a headspace above the water in the bottle to maintain the dissolved oxygen content of water in the bottle at an elevated level during the entire time water is dispensed from the bottle by the cooler, the elevated dissolved oxygen level having been established previously during the water bottling process. The oxygen source preferably comprises an oxygen generator, and such generator preferably comprises pressure swing absorption oxygen generating apparatus.
    Type: Grant
    Filed: July 29, 1998
    Date of Patent: January 25, 2000
    Assignee: Oxygen8, Inc.
    Inventors: R. Glenn Wright, George P. Mravlja, Jr.
  • Patent number: 6010323
    Abstract: A vacuum pressure forming apparatus which is capable of uniformly heating a sheet member and preventing the occurrence of wrinkles or rain drops in the sheet member. The apparatus is equipped with an endless belt having a number of air holes and is stretched between a heating drum and a cooling drum. After preheating, the sheet member is placed closely into contact with a surface of the endless belt through the use of a pressing roller and the sheet member is clamped between the endless belt and a metal pattern having a plurality of cavities formed therein. The apparatus further includes a pressure difference producing device which supplies pressurized air from a rear surface side of the endless belt toward the sheet member such that pressure on an upper surface of the sheet member becomes higher than pressure on a lower surface thereof. Consequently, the sheet member is formed into configurations corresponding to the configurations of the cavities of the metal pattern.
    Type: Grant
    Filed: April 11, 1997
    Date of Patent: January 4, 2000
    Assignee: Masaki Ooba
    Inventor: Michio Sekino
  • Patent number: 6007596
    Abstract: An air filter kit for residential and light commercial air filtration applications including a user assembled, dimensionally adjustable, air filter frame assembly capable of telescopic adjustment of both length and width. Telescopic adjustment is facilitated by a plurality of slidably engaged frame members which together form an adjustable peripheral filter frame defining a recessed channel for receiving a quantity of filter media therein. Adjustment of the frame members is further facilitated by the use of a lubricating substance such as a friction reducing synthetic tape between the members. A quantity of spongy filter media is secured cut to size and secured within the recessed channel by a quantity of hook material projecting into the filter media. A perimeter gasket anchors the frame dimensions while providing a positive seal between the frame and a filter track.
    Type: Grant
    Filed: November 5, 1996
    Date of Patent: December 28, 1999
    Inventor: Richard M. Rosen
  • Patent number: 6001145
    Abstract: The invention relates to an air purification apparatus substantially comprising a suction part, a ventilator housing with one or several ventilators and one or more air filters disposed before or after the ventilator, wherein a housing implemented with a base comprises modular function parts disposed tower-like one above the other, one engaging the other in sealing fit and readily detachable one from the other and at least one pivoted lever disposed pivotably on the lateral portion of the housing by means of a pivot receptor in the direction of the arrow and extending over all parts of the housing from the outside and clamping them together. The air purification apparatus additionally fastenable on the ceiling is usable in particular as spot suction, as ventilation or overpressure or as clean-air purification apparatus.
    Type: Grant
    Filed: October 31, 1997
    Date of Patent: December 14, 1999
    Assignee: Clinix GmbH
    Inventor: Frank Hammes
  • Patent number: 5997753
    Abstract: The inability to settle mining tailings, pulps, slurries, and other wastes in form of hard sediments and forced storage of jelly-like sludge in tailings ponds have a great economic and environmental impact. This feature is caused by suspension force arising due to high neutral pressure. The drag caused by friction between sinking solid particles and immovable water generates the upward directed suspension force that decreases the unit weight of solid particles, and they settle extremely slowly. On sufficient concentration of solid particles they become weightless and further settling is ceased. The solid particles remain suspended for a long time. The suspension force can be destroyed by greater oppositely directed seepage force. For this purpose the suspension is supplied into a container with permeable member, low pressure acting on its downstream surface is ensured, and passage of liquid through the permeable member is initiated. A downward directed seepage force is formed in the permeable member.
    Type: Grant
    Filed: January 28, 1999
    Date of Patent: December 7, 1999
    Inventor: George Ter-Stepanian
  • Patent number: 5992642
    Abstract: A filtering apparatus and filtering system where a hinge belt 10 of a hinge-belt type filtering apparatus 100 is continuously rotated by driving of a drive motor 65 such that hinge scrapers are rotated along a bottom plate 6b of the hinge filtering apparatus main body, from a horizontal part to a slope part of the hinge filtering apparatus main body.
    Type: Grant
    Filed: May 1, 1997
    Date of Patent: November 30, 1999
    Assignee: Kabushiki Kaisha Syst
    Inventor: Seizo Ota