Patents Examined by Charles N. Hart
  • Patent number: 4379054
    Abstract: An open sea skimmer barge for use as a dredge comprising a hull having a bow, bottom, side walls, stern having a substantially horizontal elongate slot extending across a portion thereof and a deck, a spill suction tunnel, a collection tank, secondary oil separation means and tertiary oil separation means.
    Type: Grant
    Filed: March 15, 1982
    Date of Patent: April 5, 1983
    Assignee: Halliburton Company
    Inventor: William M. Ayers
  • Patent number: 4378296
    Abstract: A filter (21) for removing flux from a hot heat transfer liquid-flux mixture. The heat transfers liquid-flux mixture is directed into a chamber (41) having a plurality of spaced, hollow members (64--64) through which a coolant passes. Upon being cooled the flux deposits on the surface of the members (64--64). The liquid, with substantial portions of the flux removed therefrom, then leaves the filter (21).
    Type: Grant
    Filed: June 29, 1981
    Date of Patent: March 29, 1983
    Assignee: Western Electric Co., Inc.
    Inventors: Roy C. Carlson, Jr., Edward J. March
  • Patent number: 4377485
    Abstract: Apparatus and a method for removing suspended particles from water in a circular tank having a distribution and flocculation chamber immersed in the tank of water and carried circularly around the tank by a carriage. Flocculating material and inlet water are introduced into the body of water from the moving flocculating chamber at the same rate as clarified water is discharged through a filter substantially covering the bottom of the tank. A majority of particles in the water is collected by flocs in the water and floated to the water surface by air bubble action. The floating sludge is removed by a spiral scoop carried by the carriage. The water is then passed through the bottom filter which removes the remaining flocs completing the clarification of the water for discharge. Apparatus is provided for selectively back washing sections of the filter while the remainder of the filter is in operation.
    Type: Grant
    Filed: September 15, 1981
    Date of Patent: March 22, 1983
    Assignee: Lenox Institute for Research, Inc.
    Inventor: Milos Krofta
  • Patent number: 4374030
    Abstract: A process for separating a dispersed phase from a continuous phase comprising immersing vertically in the mixed phases an apparatus.
    Type: Grant
    Filed: November 5, 1981
    Date of Patent: February 15, 1983
    Inventor: Grover C. Franklin, Jr.
  • Patent number: 4372860
    Abstract: By a method and an apparatus for cleaning water in a swimming pool, the water is circulated successively through a plurality of flow chambers divided by partitions. In the front chamber bar-shaped heating bodies are located transverse to the flow direction of the water, and in the succeeding chamber ultraviolet radiation lamps are located transverse to the flow direction, said lamps radiating light at .lambda.>300 nm. In a last chamber ultraviolet radiation lamps are located which radiate light at .lambda.<300 nm. When the water passes through the container, skin squames and the like organisms collect on the heating bodies, whereas the ultraviolet radiation lamps in the chamber ensure such a disinfection that only a quite small amount of fresh water need to be supplied to the swimming pool. The ultraviolet radiation lamps serve to kill the bacteria resistant to chlorine.
    Type: Grant
    Filed: February 24, 1981
    Date of Patent: February 8, 1983
    Assignee: H. & P. Kaas System Teknik ApS
    Inventor: Povl Kaas
  • Patent number: 4368125
    Abstract: Apparatus for extracting liquid from a suspension includes a horizontally mounted rotatable filter media covered concentrator drum with an inner drum rotatable about a horizontal axis within the concentrator drum and defining a suspension transition chamber therebetween. The drums are mounted in a common frame and are rotated in opposite directions with the suspension being introduced at one end of the transition chamber. Angularly disposed vanes on the outer surface of the inner drum convey the suspension through the transition chamber and turn and lift the suspension to a maximum elevation below the top of the transition chamber with the suspension falling back before reaching the top of the transition chamber. The filter media is cleaned as it moves at an elevation above the suspension.
    Type: Grant
    Filed: August 3, 1981
    Date of Patent: January 11, 1983
    Assignee: Passavant-Werke AG & Co. KG
    Inventor: James D. Murray
  • Patent number: 4367140
    Abstract: In apparatus for the reverse osmosis purification of water or other fluid in a module containing a membrane, the water is forced into the module under pressure using two piston-cylinder assemblies mechanically interconnected with the pressurized fluid from the module applied to the rear face of the piston which, from its front face, is driving water into the module, a low pressure continuously operating pump providing a low pressure on the other piston to supply the necessary extra pressure. Valve means automatically reverse the functions of the two cylinders at each end of each stroke.
    Type: Grant
    Filed: October 30, 1980
    Date of Patent: January 4, 1983
    Assignee: Sykes Ocean Water Ltd.
    Inventor: Leslie P. S. Wilson
  • Patent number: 4367142
    Abstract: A ladder-like grate for use in drainage ducts, which grate includes a main surface portion and opposed, upright longitudinal edges extending along respective longitudinal sides of the main surface portion, is produced from two sheet metal components at least one of which is provided with slits and each of which is provided with supporting bars. One component is an inner component which includes longitudinal bars extending along opposite sides thereof. The other component is an outer component which includes angled longitudinal edge parts extending along opposite sides thereof. The components are assembled together with the inner component within the outer component, the longitudinal bars held in the longitudinal edge parts, and the supporting bars of the inner component resting against those of the outer component.
    Type: Grant
    Filed: March 22, 1982
    Date of Patent: January 4, 1983
    Assignee: TWB-Pressteile GmbH
    Inventor: Peter Blecher
  • Patent number: 4354939
    Abstract: A method of desalinating solutions by reverse osmosis into a salt-poor permeate and a salt-rich concentrate is disclosed. The method includes the steps of supplying solution to a reverse osmosis unit, supplying concentrate leaving the reverse osmosis unit to a treatment container or containers while simultaneously withdrawing a predetermined amount of solution. Some of the solution is also supplied to another space of one of the containers so that practically pressure-less concentrate is conveyed to the environment. The sequence of steps can be reversed in which the containers are supplied so that concentrate collected in the space of the container not being supplied with solution is available for being conveyed to the environment.
    Type: Grant
    Filed: February 13, 1981
    Date of Patent: October 19, 1982
    Assignee: L. & C. Steinmuller GmbH
    Inventor: Kurt M. Pohl
  • Patent number: 4351724
    Abstract: A plate-type filter press has sidebars carried on fixed frames, and the filter press plates, the queen end and the king end are all supported on the sidebars by means of pins projecting laterally from the plates and the king and queen ends and resting on the bars. The plates and the queen end are able to slide along the bars on their pins, and even the king end is allowed a limited amount of float between stops on the bars. The press is opened and closed by means of double-acting hydraulic piston-and-cylinder units which are mounted on the king end and are coupled to the queen end by longitudinally extending tie rods so as to close the press by pulling the queen end towards the king end.
    Type: Grant
    Filed: February 5, 1980
    Date of Patent: September 28, 1982
    Assignee: Johnson-Progress, Limited
    Inventor: Paul F. Jones
  • Patent number: 4347138
    Abstract: Serum albumin and a serum .gamma.-globulin are separated by filtration from each other in a solution of a mixture thereof by using an ultrafiltration membrane. The ultrafiltration membrane has a fractionation molecular weight of about 100,000. The total protein concentration and salt concentration in the mixture solution to be forced through the membrane are adjusted to not more than 4 g/dl and not more than 0.6 mole/l, respectively. Also, the pH of the solution is adjusted to a value of from about 3.8 to about 4.7.
    Type: Grant
    Filed: December 3, 1980
    Date of Patent: August 31, 1982
    Assignee: Toyo Soda Manufacturing Co., Ltd.
    Inventors: Shotaro Ohno, Kenji Koyama, Mitsutoshi Fukuda
  • Patent number: 4346006
    Abstract: A diffusion membrane unit comprising: in a first embodiment, a planar arrangement of parallel separate capillary membrane tubes and junction lines of adhesive material extending continuously across said parallel membrane tubes and continuously along the entire length of said arrangement; and in a second embodiment a plurality of planar single-layered arrays of parallel capillaries defining out of phase sinuous paths.
    Type: Grant
    Filed: March 24, 1980
    Date of Patent: August 24, 1982
    Assignee: Baxter Travenol Laboratories, Inc.
    Inventors: Clinton V. Kopp, Dilip Shah
  • Patent number: 4343698
    Abstract: A water intake for example for taking cooling water for industrial installations from a river, a lake or the sea, has a sieve with a filter element and a recovery channel associated with the filter element for collecting and saving elements of the biomass which become stuck to the filter element. Electrodes are associated with the recovery channel 25 and are designed to induce an electrical field, at right angles to the recovery channel in the water to be tapped, so as to compel fish either to swim by themselves in the direction of this recovery channel or to allow themselves to be carried towards the recovery channel by a reverse water current induced at right angles thereto.
    Type: Grant
    Filed: January 23, 1981
    Date of Patent: August 10, 1982
    Assignee: E. Beaudrey & Cie, Societe Anonyme
    Inventor: Philip Jackson
  • Patent number: 4341538
    Abstract: A filter for intravenous solutions including a flat, rectangular housing formed of two pieces sandwiching a filter sheet diagonally from end to end with support ribs on one side of the sheet and luer connections in the large end of each piece of the housing.
    Type: Grant
    Filed: August 18, 1978
    Date of Patent: July 27, 1982
    Assignee: Gelman Instrument Company
    Inventors: Attila Vadnay, Mary K. Boomus
  • Patent number: 4341631
    Abstract: An improved multi-tubular module is provided for use in ultrafiltration and reverse osmosis devices. Improved mechanical strength is achieved in the module by bonding the individual tubes to each other at spaced intervals along their total length whereby lateral and axial movement of individual tubes with respect to one another is eliminated, resulting in a coherent monolith of tubes. Additionally, improved resistance to thermal cycling is imparted to the module by connecting the tube sheet or header to the module shell in a manner which allows for slight movement of the tube sheet with respect to the module shell and yet provides a device which can be easily sanitized or sterilized when used for food or drug applications.
    Type: Grant
    Filed: December 1, 1980
    Date of Patent: July 27, 1982
    Assignee: Union Carbide Corporation
    Inventor: Bartholomew Hargitay
  • Patent number: 4340481
    Abstract: The invention concerns a membrane filtration type hollow fiber. It is composed of a single material phase which material is a chain high polymer and capable of forming fibers by the spinning of the high polymer. The cylindrical wall defining the hollow fiber represents a three-dimensional net-like structure of fine filtering passages of 0.05 to 1 micron, preferably 0.1 to 1 micron. This structure occupies substantially the whole mass of the tubular wall or a closed ring band zone when seen in any cross-section of the wall, providing thus an effective and active filtering zone. The pore rate amounts to at least 55%, and active points of the filtering passages for governing minimum passable sizes of the passages for solids included in a filtering liquor to be treated upon are distributed at random throughout at least the active zone. These sizes are nearly uniform.
    Type: Grant
    Filed: December 28, 1979
    Date of Patent: July 20, 1982
    Assignee: Asahi Kasei Kogyo Kabushiki
    Inventors: Mashahiro Mishiro, Tokio Nishikawa, Shigeyasu Ohashi, Yasuo Yokokawa
  • Patent number: 4339334
    Abstract: The invention provides a tubular membrane separation apparatus useful for ultrafiltration and reverse osmosis. A tubular separation element (1) is fitted in a porous pressure-resistant tube (2) which is inserted in a liquid collector tube (3) of larger diameter. The collector tube (3) is detachably connected to connector tubes (6) by joints (4). Each end of the separation element (1) is held between the inner surface of the joint (4) and the end of the connector tube (6) and thereby sealed. The separation element (1) is replaceable, and the apparatus can be disassembled for cleaning.
    Type: Grant
    Filed: March 28, 1980
    Date of Patent: July 13, 1982
    Assignee: Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
    Inventors: Tamiyuki Eguchi, Michinobu Izumi
  • Patent number: 4337695
    Abstract: The filter press includes pressing members for pressing the liquid out of a slurry of a solid in a liquid to form a solid cake. The pressing members are then separated to drop the cake through open diverter doors. The pressing members are washed after the diverter doors are again closed.The diverter doors are pivotally mounted with one diverter door having a portion thereof overlapping the top of the other diverter door in the closed position. Means are provided for pivoting the overlapping diverter door from the closed position in a first rotational direction and then in the opposite rotational direction while simultaneously pivoting the other diverter door in said first rotational direction.
    Type: Grant
    Filed: January 26, 1981
    Date of Patent: July 6, 1982
    Assignee: Ingersoll-Rand Company
    Inventor: W. Richard Clendaniel
  • Patent number: 4334989
    Abstract: In an automobile fuel system and particularly for a diesel powered vehicle, it is desirable to provide a water separator to prevent passage of water to the engine and particularly the fuel induction components. It is also desirable to provide ejection means for the separated water which may include a provision to prevent the ejected water from falling to the ground.
    Type: Grant
    Filed: December 29, 1980
    Date of Patent: June 15, 1982
    Assignee: Chrysler Corporation
    Inventor: John F. Hall
  • Patent number: 4332686
    Abstract: An ultrafiltration membrane comprised of a linear polyurethane having a hydraulic permeability for water of about 50 to 500 1/m.sup.2 .multidot. h and a separation factor .alpha. of about 2.times.10.sup.-3 to 1.times.10.sup.-4, the permeability being based on determination with a membrane of a thickness of about 0.02 mm, a pressure differential of 1 bar and a temperature of C. and the separation factor .alpha. being established with a 2% oil-water emulsion at C. The membrane is particularly suited for operation of oil-water mixtures or emulsions.
    Type: Grant
    Filed: April 30, 1980
    Date of Patent: June 1, 1982
    Assignee: Akzo N.V.
    Inventors: Klaus Gerlach, Joachim Behnke, Wolfgang Rosener, Ewald Hohm