Downstream Of Filter Medium Patents (Class 210/307)
  • 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: 4304671
    Abstract: A system for treating organic emulsions by separating by coalescence the disperse phase from the dispersion phase of the emulsion includes a single enclosed chamber having therein a lower destabilizing area, a central filtering and coalescence area, and an upper flotation and separation area. An emulsion to be treated is continuously introduced and passed upwardly through the destabilizing area, the filtering and coalescence area and the flotation and separation area. The flotation and separation area includes a center portion positioned vertically above the filtering and coalescence area and at least one lateral portion in flow communication with the center portion and extending laterally downwardly along a side of the filtering and coalescence area and the destabilizing area. The lateral portion of the flotation and separation area is laterally separated from the filtering and coalescence area and from the destabilizing area by a partition.
    Type: Grant
    Filed: September 24, 1979
    Date of Patent: December 8, 1981
    Assignee: Degremont
    Inventor: Herve Labaquere
  • Patent number: 4299706
    Abstract: Separation of a suspension of two immiscible fluid components is accomplished in a cylindrical pressure vessel divided into a main chamber and, at one axial end, a secondary chamber. A series of sinusoidal plates in the main chamber provides a tortuous passage for fluid to the secondary chamber. The two components tend to separate during such passage, the less dense component collecting in the upper part of the main chamber and the denser component passing to the secondary chamber. The vessel is provided with an inlet to the main chamber, a first outlet from the main chamber for the less dense component and a second outlet for the denser component exiting from the secondary chamber.
    Type: Grant
    Filed: November 26, 1979
    Date of Patent: November 10, 1981
    Assignee: Fram Europe Limited
    Inventor: Peter B. Smith
  • Patent number: 4289519
    Abstract: Molten slag is granulated with water to produce a granulated-slag/water sry that is fed into the bottom of a horizontally extending foraminous drum. This drum has radially inwardly extending vanes and is rotated to lift up the granulated slag and separate it from the water, discharging the slag onto a conveyor belt for storage or further use. The water running out of the slag slurry is recirculated for use in the initial granulation step for the molten slag stream.
    Type: Grant
    Filed: January 7, 1980
    Date of Patent: September 15, 1981
    Assignee: SIDMAR Maritieme Staalnijverheid NV., Siderurgie Maritime S.A.
    Inventor: Guido Monteyne
  • Patent number: 4265759
    Abstract: A device for separating a mixture of, for example, oil and water consists of a number of elements treating the mixture in stages, said elements being arranged in overlying position in order to manufacture a compact device.
    Type: Grant
    Filed: February 20, 1980
    Date of Patent: May 5, 1981
    Assignees: Ballast-Nedam Groep N.V., Skimovex B. V.
    Inventors: Willem A. Verpalen, Theodorus A. J. Koot
  • Patent number: 4251369
    Abstract: A coalescer is provided which separates dispersed liquid hydrocarbon phases from continuous liquid aqueous phases by increasing the size of the dispersed phase droplets using a variety of coalescing media, preferably in granular form. The coalescer must contain at least three sides; however any number of sides up to a circle can be used, and a circular cross-section is preferred. Untreated aqueous phase is drawn through the coalescer media, where the dispersed droplets increase in size. The dispersed droplets are coalesced to a sufficiently large degree to rise to the top of the coalescer against the downward flow of the continuous phase, said continuous phase being withdrawn from the bottom portion of the coalescer and the separated, previously dispersed phase withdrawn from the top of the coalescer.
    Type: Grant
    Filed: June 11, 1979
    Date of Patent: February 17, 1981
    Assignee: Conoco, Inc.
    Inventors: Burton M. Casad, R. Leroy Grimsley
  • Patent number: 4243533
    Abstract: Periodically operating pressure filter for the concentration of a solid matter suspension, comprising a filtering tank with an input conduit for introducing the suspension to be filtered under pressure, and a drain conduit for removal of the concentrated sludge, and a number of filtering elements suspended from the ceiling, through which the filtrate flows and which are internally in communication with a filtrate collecting tank located above and which thereby collect sludge on their outer surface. The sludge has been arranged to be periodically detached by making the pressure inside the filtering element higher than on its outside. The filtrate is under atmospheric pressure in the collecting tank.
    Type: Grant
    Filed: March 12, 1979
    Date of Patent: January 6, 1981
    Assignee: Enso-Gutzeit Osakeyhito
    Inventors: Jaakko Savolainen, Holger Engdahl, Yrjo Luukkainen, Martti Tolvanen, Jorma Surakka
  • Patent number: 4204855
    Abstract: Molten slag is granulated with water to produce a granulated-slag/water sry that is fed into the bottom of a horizontally extending foraminous drum. This drum has radially inwardly extending vanes and is rotated to lift up the granulated slag and separate it from the water, discharging the slag onto a conveyor belt for storage or further use. The water running out of the slag slurry is recirculated for use in the initial granulation step for the molten slag stream.
    Type: Grant
    Filed: April 11, 1979
    Date of Patent: May 27, 1980
    Assignee: SIDMAR Maritieme Staalnihverheid N.V. Siderurgie Maritime S.A.
    Inventor: Guido Monteyne
  • Patent number: 4170558
    Abstract: A liquid cleaner incorporating a driven impeller rotatably mounted in a perforated cage whereby liquid to be purified is introduced into the cage adjacent the center thereof, the impurities suspended in the liquid tending, by the centrifugal action of the impeller acting on the liquid in the cage, to move outwardly through apertures in the circular side wall of the cage, and downwardly into a lower sedimentation trap area outside the influence of the centrifugal action, the purified liquid then leaving the cage area through a suitable orifice at a predetermined distance from the axis of the cage.
    Type: Grant
    Filed: December 12, 1977
    Date of Patent: October 9, 1979
    Inventor: Lawrence L. Kerby
  • Patent number: 4151087
    Abstract: An oily-water separator comprises a single vessel having a partition wall dividing the interior of the vessel into an upper and a lower chamber, a filter device disposed coaxially within the vessel and extending into the both chamber, an oil-water mixture inlet opened at a lower portion of the upper chamber, a first oil outlet opened at a top portion of the upper chamber, a second oil outlet connected to a top of the filter device, a third oil outlet opened at an upper portion of the lower chamber and a water outlet opened at a lower portion of the lower chamber.
    Type: Grant
    Filed: July 11, 1977
    Date of Patent: April 24, 1979
    Inventor: Jun Sakaguchi
  • Patent number: 4072614
    Abstract: Oily water is introduced into the lower ends of outer vessels and flows upwardly in annular spaces between the outer vessels and inner separating vessels and into the inner vessels below inwardly spaced, shallowly cupped, annular separating discs. Larger particles of oil flow past the discs directly to the tops of caps on the outer vessels. The smaller particles of oil coalesce on and flow slowly along the bottoms of the discs to central openings in the discs, and up into the caps. The oil flows out of the caps when valves are opened by ultrasonic sensing probes actuated by accumulation of predetermined quantities of oil in the caps. The water flows out of outlets positioned near the bottoms of the inner vessels. In an alternate embodiment, a filter member of foam plastic is inclined to the flow toward the water outlet and coalesces any oil yet remaining in the water.
    Type: Grant
    Filed: February 17, 1976
    Date of Patent: February 7, 1978
    Inventor: Frank N. Harris
  • Patent number: 4057496
    Abstract: A device for filtering slurries comprises a bag-shaped filter medium accommodated in a filter chamber of a filter tank, in which a slurry is supplied, a baffle plate for separating the filter chamber into a side filter chamber and a bottom filter chamber, said side and bottom filter chambers each having an outlet port which can be freely opened and shut, the upper end of said baffle plate being located above the upper surface of a filter cake sedimented on the bottom of the bag-shaped filter medium and a method of filtration by means of the device.
    Type: Grant
    Filed: June 15, 1976
    Date of Patent: November 8, 1977
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Sadayoshi Itagaki
  • Patent number: 4043915
    Abstract: A filter used in irrigation systems comprises a hollow screening and filtering body with inlet and outlet ports. A Venturi pipe is connected with the interior of said body. The screening and filtering body is placed in a casing which has an outlet. A conduit leads from the interior of the screening and filtering body into a container. From the interior of that container a further conduit leads to a point substantially co-incident with the throat of the Venturi pipe. The said further conduit is closed at its end positioned within the container. That portion of the said further conduit which extends within the container is permeable to liquid. The container has a flushing inlet and a flushing outlet.
    Type: Grant
    Filed: January 17, 1977
    Date of Patent: August 23, 1977
    Inventor: Nahum Man
  • Patent number: 4040933
    Abstract: An improved filter assembly is advantageously utilized in association with an apparatus which electrolytically removes material from a workpiece. The apparatus includes one or more nozzles each of which tapers from a relatively large inside diameter to a relatively small inside diameter to direct a flow of electrolyte toward a workpiece. The improved filter assembly is utilized to remove particles from the electrolyte before it is conducted to the nozzles. The filter assembly includes a housing which is divided into an inlet chamber and an outlet chamber by a transverse wall. A plurality of tubes extend through the wall and are effective to conduct electrolyte from the inlet chamber to the outlet chamber along a plurality of spaced apart flow paths. Each of these tubes has an inlet end portion with a cross sectional area which is less than the minimum cross sectional area of each of the nozzles.
    Type: Grant
    Filed: October 26, 1976
    Date of Patent: August 9, 1977
    Assignee: TRW Inc.
    Inventor: James D. Andrews
  • Patent number: 4040961
    Abstract: The invention is an apparatus and method for separating solid particles from a liquid, including both light particles which tend to flow on or close to the surface of the liquid and heavy particles which tend to sink to the bottom of the liquid. The apparatus includes: a separation tank, an inlet means, a weir, a heavy particle outlet means, and a substantially clear liquid outlet means.
    Type: Grant
    Filed: June 26, 1975
    Date of Patent: August 9, 1977
    Assignee: Coaltek Associates
    Inventors: Rufus F. Davis, Jr., Donald G. Marting
  • Patent number: 3992297
    Abstract: This invention provides a separator for two relatively insoluble mixed liquids of different specific gravities as, for example oil and water. More particularly the invention relates to a bilge oil separating system (BOSS), or apparatus and includes a float controlled bilge pump for pumping the oil contaminated bilge water from a ship's bilge into a splatter chamber, that, to considerable measure, undoes the globularization of the oil caused by the bilge pump. This is effected by changing the rather rapid downward flow of the mixed liquids out of the delivery tube to a hollow jet type outwardly and upwardly directed flow that then changes to a hollow cylindrical downward flow against the inner cylindrical surface of the wall of a splatter chamber.
    Type: Grant
    Filed: February 18, 1976
    Date of Patent: November 16, 1976
    Inventors: Elisha J. Baughcom, Daniel C. Lee, Sr.
  • Patent number: 3957647
    Abstract: This invention relates to water pollution control and concerns a system for removing dispersed oil from water by contacting the oily water with sulfur to cause the oil to coalesce or agglomerate. In a preferred embodiment, the water containing the dispersed oil is passed through a bed of granular media presenting a surface area of solid phase sulfur to coalesce the dispersed oil. The coalesced oil is then separated from the water.
    Type: Grant
    Filed: September 3, 1974
    Date of Patent: May 18, 1976
    Assignee: Amoco Production Company
    Inventor: Loyd W. Jones
  • Patent number: 3948768
    Abstract: A method and apparatus are provided for separating fine oily particles from aqueous liquids at very high flow velocities by passing the mixture upwardly through an unconfined mass of oleophilic granules in a column with adequate velocity to separate and lift the individual granules into the upwardly flowing mixture within the column where movement of the individual granules serves to collect and coalesce the fine oily particles, and finally to release large oil drops back into the mainstream of the upwardly flowing mixture column. These large oil drops are then intercepted and extracted by a steeply inclined screen and caused to flow to storage in the form of a fine oil film propelled by the force of the flow of the aqueous liquid through the screen.
    Type: Grant
    Filed: July 7, 1975
    Date of Patent: April 6, 1976
    Inventor: Willis F. Chapman
  • Patent number: 3948767
    Abstract: A method and apparatus are provided for separating oily particles from an emulsion thereof in an aqueous liquid. The emulsion is passed through a bed of oleophilic granules supported on a foraminous support, the oleophilic granules, by virtue of their density, pressing against the foraminous support and the bed is unconfined downstream thereof so that the granules in the bed are fluidized by the passage of liquid therethrough. The oily particles are removed from the emulsion by the oleophilic granules in the bed, and the oily material accumulates and agglomerates and is transported out of the bed by the passage of liquid therethrough. The movement of the liquid then carries the oily droplets which are formed in the bed and deposits them upon a screen positioned downstream of the bed, the aqueous liquid passing through the screen in purified form. The oil accumulates on the screen and is propelled by the moving liquid into an oil reservoir positioned downstream of the screen.
    Type: Grant
    Filed: February 6, 1974
    Date of Patent: April 6, 1976
    Inventor: Willis F. Chapman