With Discharge Port Patents (Class 210/540)
  • Patent number: 7235183
    Abstract: The present invention provides a method and apparatus for the recovery of salt from a glycerine process, allowing the salt to be used in a brine solution. A salt settling tank is positioned inline between the foots from a crude still bottom and a foot still. Salt settles to the bottom of the settling tank and into a salt receiver positioned below, while clarified liquid overflows to the foot still. Salt from the salt receiver is then semi-continuously transferred into a salt extractor where the salt is removed from the mother liquor. A condensate is then circulated into the salt extractor and the salt slurry is then stored in a brine storage tank.
    Type: Grant
    Filed: June 22, 2004
    Date of Patent: June 26, 2007
    Assignee: Crown Iron Works Company
    Inventor: Hernan D. Paredes
  • Patent number: 7223348
    Abstract: The present invention provides a new and improved method and apparatus for separating a disperse mixture of two non-miscible liquids to increase the separation extent within less time required as per usual. The proposed method includes the steps of providing a tank having an elongated horizontal extension terminated by two end faces (4, 5), creating within said tank an interface (13) between a first layer formed by a volume of one of said two liquids and a second layer formed by a volume of the other of said two liquids with, and supplying said disperse mixture into the tank from one of said end faces (4) thereof directly into said interface (13).
    Type: Grant
    Filed: April 6, 2000
    Date of Patent: May 29, 2007
    Assignee: Lisopharm AG
    Inventors: Alexander Seregin, Victor Ermolov, Vladimir Minaev, Andrey Orlov
  • Patent number: 7208080
    Abstract: A container for receiving and holding effluent water containing oil/grease to be removed has sectional covers. A main sectional cover supports a partially immersed rotatable disk; a drive on the main sectional cover rotates the disk; a trough on the main sectional cover straddles the disk; and a blade on the trough scrapes a side of the disk, to direct oil and grease from the disk along the scraper blade along the trough for collection in a storage container. Efficiencies of construction of the sectional covers, disk and a sensor probe are disclosed.
    Type: Grant
    Filed: September 16, 2004
    Date of Patent: April 24, 2007
    Assignee: Thermaco, Inc.
    Inventors: William C. Batten, Bruce W. Kyles
  • Patent number: 7186346
    Abstract: An oil/grease removal assembly includes a container having an inlet to receive effluent from a kitchen sink. A drain connection spaced above the container bottom defines a static water level for contained liquid and connects to a sewer. A baffle extends downwardly below the static water level so water can flow below the baffle to the drain, while retaining floating oil/grease. Means intermittently raise the liquid level in the container above the static water level. Floating oil/grease can flow out through a port when the liquid level in the container is raised above the static water level.
    Type: Grant
    Filed: January 28, 2004
    Date of Patent: March 6, 2007
    Assignee: Thermaco, Inc.
    Inventors: William C. Batten, Charles Kemp, Bruce W. Kyles
  • Patent number: 7172688
    Abstract: A system to collect by vacuum conveyance, separate, and discharge two mixed immiscible liquids with different specific gravities comprising a prefilter vessel 200, a vacuum tank 100, an optional heavy phase intermediate separation stage 40, and an optional light phase intermediate separation stage 30. Vacuum tank 100 is under a constant regulated vacuum, which sucks mixed immiscible liquids with different specific gravities from their respective remote source(s) through conduit(s) connected to vacuum tank 100. Collection conduits can have manually, mechanically, or electro-mechanically controlled valves at their source ends. Any grit, sediment, particles, and/or floatable debris in the collection conduits is first removed, and then any entrained air in the mixed liquid stream is removed, from the mixed liquid stream prior to undergoing any phase separation stages. Initial phase separation occurs automatically in vacuum tank 100 without any phase interface detection devices.
    Type: Grant
    Filed: December 8, 2003
    Date of Patent: February 6, 2007
    Inventor: Robert N. Petersen
  • Patent number: 7165683
    Abstract: The invention concerns a lamellar clarifier (1) comprising: a) a tank (3) of liquid to be clarified (5); b) means (7) for conveying said liquid (5) into a lower zone (9) of said tank (3); c) means (11) for evacuating said liquid (5) from an upper zone (13) of said tank (3); d) a plurality of clarifying plates (Di) mounted inside said tank (3), defining a plurality of passages extending between said lower (9) and upper (13) zones; and e) means for calibrating said liquid flow (5) between said passages and said upper zone (13). Said calibrating means comprise first tubular members (Ti) mounted inside said tank (3) and integral with said plates (Di), and second tubular members (Tj) arranged substantially staggered relative to said first tubular members (Ti).
    Type: Grant
    Filed: October 25, 2002
    Date of Patent: January 23, 2007
    Assignee: Innova Environnement
    Inventor: Alain Boulant
  • Patent number: 7163107
    Abstract: In-situ cleaning of the bilgewater processing plates of stacks within a treatment tank chamber of a 50-gpm oil/water separator is performed by an injected chemical cleaning agent dispersed by diverted flow of pressurized air introduced into the tank chamber below the plate stacks by emergence of air bubbles from plural branches of an air sparging array system positioned in underlying alignment with crest formations on the processing plates. The air sparging array system consists of an upper and lower tank arrays.
    Type: Grant
    Filed: October 28, 2004
    Date of Patent: January 16, 2007
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Stephan J. Verosto, Mario DiValentin, David O. Ferchau, Michael Honan, J. William Citino, III, David E. Freshcoln
  • Patent number: 7163624
    Abstract: An electrostatic separator intended for separation of liquid phase systems, made up of mixtures of liquids of various electrical permittivity. In particular, the separator is intended for separation of an oil-and-water emulsion. The electrostatic separator contains a vessel, inside which there is suspended a system of electrodes energized from an external voltage source. The electrode system comprises at least one pair of conducting plates (8), which is attached to a supporting frame (7) and electrically connected with the high voltage winding of a feeding transformer (9), which is placed in the supporting frame (7). The supporting frame (7) is preferably a casting of an insulating material. The conducting plates (8) of the electrode system are preferably connected to the winding of the feeding transformer (9) through a capacitive electrical connection.
    Type: Grant
    Filed: December 13, 2002
    Date of Patent: January 16, 2007
    Assignee: Vetco Aibel AS
    Inventors: Pål Jahre Nilsen, Wojciech Piasecki
  • Patent number: 7160448
    Abstract: Contaminated water is disinfected by admixture of a highly reactive gas stream containing ions of oxygen and nitrogen, formed by exposure of air to short-wavelength ultraviolet radiation, and of chlorine, formed by electrolysis of a brine solution. Solids removal can be accomplished by electrophoresis in the same unit employed for electrolysis of brine to release chlorine, or in a separate unit.
    Type: Grant
    Filed: May 14, 2004
    Date of Patent: January 9, 2007
    Assignee: EnerOx Technology LLC
    Inventor: Dennis E. J. Johnson
  • Patent number: 7156988
    Abstract: A system and method for removing floating product from an aquifer. The system includes a groundwater-depressing mechanism configured to create a depression in a groundwater surface that encourages migration of floating product to the depression. The system also includes a floating-product extraction mechanism configured to separate floating product from the groundwater at the depression.
    Type: Grant
    Filed: May 14, 2004
    Date of Patent: January 2, 2007
    Inventor: Steven L. Wilhelm
  • Patent number: 7156241
    Abstract: A composite fluid separator for isolting a first liquid from a second liquid having a different specific gravity. A housing (52) encloses a separation chamber (53). An inlet port (60) delivers the composite fluid into the sump (65) of the chamber. A plurality of stacked baffles (30) is positioned between the inlet and outlet ports, composed of individual inclined separation flow plates (25). The baffles create a flow path in which the fluid flows over each of the plates as it travels upward in the separation chamber toward the outlet port (50).
    Type: Grant
    Filed: February 14, 2003
    Date of Patent: January 2, 2007
    Inventor: Gary David Hanks
  • Patent number: 7147111
    Abstract: A hindered-settling fluid classifier is adapted for processing aggregate entrained in a flowing slurry. The classifier includes a classifier tank defined by walls, and having an inlet at its upstream end and an outlet at its downstream end. A slurry feed pipe is connected to the tank inlet for introducing the aggregate slurry into the classifier tank for processing. A plurality of laterally-extending flow control doors are spaced apart along a length of the classifier tank, and are adapted for interrupting flow of the aggregate slurry downstream from the tank inlet to the tank outlet. The doors define respective material settling zones each located a progressively greater distance downstream from the tank inlet. At least one water line is provided for generating an upwardly rising current in each of the material settling zones to control the settling velocity of aggregate floating downwardly towards a base of the classifier tank.
    Type: Grant
    Filed: August 29, 2003
    Date of Patent: December 12, 2006
    Inventor: Brian K. Fendley
  • Patent number: 7118670
    Abstract: An energy efficient and compact oil and water separator through which the oil and water flow for the purpose of extracting water from the oil and oil from the water made more efficient and compact by incorporating a precise control of the hydrodynamics through the application of permeable barriers on which the permeability is adjustable to compensate for variations in flow rate, density and viscosity of the oil and water, a downward flow of the oil through an electric field to mitigate the problem of high water content causing an electrical short circuiting of the electric field and a heating means with enhanced heat exchange capability.
    Type: Grant
    Filed: April 20, 2004
    Date of Patent: October 10, 2006
    Inventor: Jerry M. Edmondson
  • Patent number: 7104407
    Abstract: An apparatus for separating a first fluid from a mixture of fluids in a container, the first fluid being substantially immiscible with respect to one or more other fluids in the mixture comprises an endless strip of material having an affinity for the first fluid, a pair of members for advancing successive portions of the strip into and out of contact with the first fluid and a means for maintaining the successive portions of the strip in contact with the first fluid as the successive portions of the strip are sequentially advanced. The pair of members have cooperating surfaces that positively engage the strip with sufficient force so that movement of the members relative to one another sequentially advances successive portions of the strip. The apparatus can comprise a tube skimmer that is employed to separate tramp oil from a coolant in a machining operation.
    Type: Grant
    Filed: September 17, 2004
    Date of Patent: September 12, 2006
    Assignee: Zebra Skimmers Corp.
    Inventors: Steven Davidian, Christopher Fenn
  • Patent number: 7083716
    Abstract: The present inventions provide a floating type decanter apparatus that controls the decanting operation through the use of air.
    Type: Grant
    Filed: September 13, 2004
    Date of Patent: August 1, 2006
    Assignee: Aqua-Aerobic Systems, Inc.
    Inventor: David Smith
  • Patent number: 7083736
    Abstract: A system for extracting free oil from industrial processing fluids contains a solids retention cartridge having a plurality of vertically oriented polymeric elements therein. The cartridge fluidly communicates with a retention chamber, wherein the retention chamber provides a predetermined residence time based on fluid flow as established by inlet and outlet pressure and also as established by valved fluid exit orifices. An aggregation chamber fluidly communicates with the retention chamber and provides an area for aggregation of a low density fluid such as oil for example. The low density fluid is then decanted from a decant chamber. The purified bulk fluid is drained from the retention chamber through an associated return chamber. The average cross-sectional area of the aggregation chamber is less than the average cross-sectional area of the retention chamber thereby enhancing the aggregation of a lower density fluid such as oil, prior to decant.
    Type: Grant
    Filed: February 2, 2005
    Date of Patent: August 1, 2006
    Inventor: Gene Hirs
  • Patent number: 7044308
    Abstract: An apparatus for the removal of suspended solids and entrained oil from an aqueous solution is disclosed. The apparatus comprises a vessel having a top, bottom, side walls and end walls, with a flow inlet aperture at an upstream end and a flow outlet aperture at a downstream end. A first baffle extends downwardly from the top of the vessel downstream of the inlet and a second baffle extends upwardly from the bottom of the vessel downstream of the first baffle, with a first hopper for solids collection located upstream of the second baffle and a second hopper downstream of the second baffle. A removable coalescing media pack is located downstream of the second hopper, while a plurality of angled plates are located downstream of the coalescing media pack.
    Type: Grant
    Filed: June 5, 2002
    Date of Patent: May 16, 2006
    Inventor: Allan Clarke Benson
  • Patent number: 7025888
    Abstract: A floating decanter and method for charging supernatant from a vesel without drawing floating solids or scum into the discharge. The decanter includes a weir (16) having a central opening, and a solid bottom side, a float (12) adjacent to an outer edge of the weir, a weir lift and drive (14) having at least two screw jacks (20) attached to the float and a attachment arm (26) extending to the weir, and an discharge pipe (32) attached to the bottom of the weir. The weir is lowered with respect to the float to discharge supernatant.
    Type: Grant
    Filed: May 23, 2002
    Date of Patent: April 11, 2006
    Assignee: Ashbrook Simon-Hartley Operations, LP
    Inventors: James E. Thompson, Jeffrey S. Devine, Michael Combs
  • Patent number: 7014757
    Abstract: An integrated three phase separator for separation of natural gas, hydrocarbon liquids, and water or brine. The separator includes a cylindrical vertical separation unit having a closed top and an opposed, open bottom. A cylindrical horizontal separation unit has a pair of opposed ends, a first, closed end and a second, open end. A tubular elbow connection includes a pair of ends, one end connected to the open bottom of the vertical separation unit and another end connected to the open end of the horizontal separation unit so that the vertical separation unit and horizontal separation unit are in fluid connection with each other. A metering plate within the tubular elbow connection retains natural gas in the horizontal unit while permitting gentle release of liquid into the horizontal unit.
    Type: Grant
    Filed: October 14, 2003
    Date of Patent: March 21, 2006
    Assignee: Process Equipment & Service Company, Inc.
    Inventor: James E. Rhodes
  • Patent number: 7014756
    Abstract: An apparatus for separating a mixture of a less dense fluid, a more dense fluid, and fines. The less and more dense fluids are immiscible with each other. The apparatus comprises a housing having an inlet at an upstream end thereof and an outlet at a downstream end thereof. A separation chamber is located within the housing between the inlet and the outlet. The separation chamber comprises a generally horizontal enclosure and a screw defining a helical passage through the enclosure. The separation chamber has at least one upper aperture located in an upper portion of the helical passage and at least one lower aperture located in a lower portion of the helical passage. A baffle is attached between the housing and the separation chamber for directing at least a portion of the mixture into the separation chamber.
    Type: Grant
    Filed: April 19, 2004
    Date of Patent: March 21, 2006
    Assignee: Genoil Inc.
    Inventor: Paul Costinel
  • Patent number: 7011743
    Abstract: A chamber having an inlet for receiving polluted storm-water runoff and an outlet for the storm water to flow out. Within the chamber are one or more baffles forming gaps and having apertures. The gaps define a longer water flow route through the chamber and the apertures disperse the storm water within the chamber. This increases storm-water residence time which encourages settling of particulate matter such as sand and grit. In alternative embodiments, there are included a screen, a collection reservoir, and/or a pivotal filter for further dispersing, detaining, and/or filtering the storm water.
    Type: Grant
    Filed: December 5, 2002
    Date of Patent: March 14, 2006
    Inventors: Clark Joseph Use, John Sebastian Moll
  • Patent number: 7008546
    Abstract: A cylindrical vertical oil, water and gas separator that incorporates the known advantage of a horizontal flow path, when utilizing the force of gravity to separate a mixture of flowing fluids into distinct laminar layers, while providing a means for maintaining the dynamic equilibrium of the disparate layers of the fluids even when the oil, water and gas separator is swaying back and forth as might happen if the oil, water and gas separator is installed on the deck of a ship.
    Type: Grant
    Filed: January 7, 2003
    Date of Patent: March 7, 2006
    Inventor: Jerry M Edmondson
  • Patent number: 6994783
    Abstract: A chamber having an inlet for receiving polluted storm-water runoff and an outlet for the storm water to flow out. Within the chamber is a screen that is elevated for separating and suspending miscellaneous debris such as vegetative matter, paper, and plastic, and that extends substantially all the way across the chamber to laterally disperse the storm water in the chamber. In alternative embodiments, there are included one or more baffles, a collection reservoir, and/or a pivotal filter for further dispersing, detaining, and/or filtering the storm water.
    Type: Grant
    Filed: December 5, 2002
    Date of Patent: February 7, 2006
    Inventors: Clark Joseph Use, John Sebastian Moll
  • Patent number: 6983852
    Abstract: A desanding vessel is inserted in a high velocity fluid stream containing entrained particulates. The vessel comprises an upper freeboard portion having a large cross-sectional wherein the fluid stream velocity drops and particulates fall from suspension. Preferably the fluid stream is introduced offset upwardly from an axis of a horizontally oriented cylindrical vessel, released particulates falling to accumulate in a lower belly portion. The freeboard portion is maintained using a depending flow barrier adjacent the vessel's outlet which sets the depth of accumulation in the belly portion. A cleanout enables periodic removal of accumulations.
    Type: Grant
    Filed: September 24, 2003
    Date of Patent: January 10, 2006
    Assignee: Specialized Tech Inc.
    Inventors: Christopher A. Hemstock, Bruce G. Berkan, Kevin D. Price
  • Patent number: 6962659
    Abstract: An oil skimmer for removing oil floating on surfaces of bodies of water. The oil skimmer includes a support frame, respective drive pulley and guide pulleys rotatably mounted to the support frame on respective shafts, and a drive train which rotatively drives the drive pulley and guide pulleys. A skimmer hose in the form of a loop to which oil adhere floats on the body of water and is driven by the drive pulley through the guide pulley onto and off the surface of the body of water carrying adhered oil. A skimmer hose scraper disposed between the drive and guide pulleys removes the oil from the skimmer hose into a collection receptacle. The drive and guide pulleys comprise replaceable, quick changing inner and outer pulley halves that sandwich respective central hubs therebetween to space the pulley halves to fit skimmer hoses of different cross-sectional sizes. The central hubs with attached drive and guide pulley halves are affixed to the drive shafts using a quick release nut which threads to the shafts.
    Type: Grant
    Filed: February 21, 2003
    Date of Patent: November 8, 2005
    Assignee: Skimtech, Inc.
    Inventors: Blake W. Rhein, Frances L. Deley, Jr.
  • Patent number: 6951615
    Abstract: A grease removal system includes a solid interceptor fluidly coupled to a grease trap tank, which is fluidly coupled to a secondary tank. The secondary tank contains an enzyme solution which biodegrades the grease. The grease removal system may also include a solid interceptor fluidly coupled to a grease trap tank which is fluidly coupled to a replaceable container. Grease is diverted from the grease trap tank into the replaceable container and thereafter discarded. The grease removal system may include a grease trap tank utilizing a unique arrangement of grease baffles and solids baffles which work together to isolate grease within a single region of the grease trap tank for ease of disposal. Finally, the grease removal system includes two level sensors which detect the level of grease within the grease trap tank and, at the appropriate level direct the accumulated grease from the grease trap tank.
    Type: Grant
    Filed: March 25, 2004
    Date of Patent: October 4, 2005
    Assignee: Zurn Industries, Inc.
    Inventors: Joseph Tripodi, Carl R. Nicolia, Douglas R. Wroblewski, Robert J. Burnham
  • Patent number: 6951607
    Abstract: A mobile chamber has an inlet for receiving polluted water and an outlet for pollution-free water to flow out. A mobile trap operating system includes an output pump, an input pump, a pollution tank, and a liquid tank, all operably connected to the chamber. Within the chamber is a collection reservoir with a skimming edge for skimming off floating pollutants such as motor oil, other hydrocarbons, and detergents. Alternative embodiments include a screen, baffles, and/or pivotal filter for further separating the pollutants from the water. A method for separating the pollutants from the water includes directing the water from the water tank at the pollutants and into a collection pool of polluted water, drawing the polluted water into the chamber, receiving the skimmed pollutants from the collection reservoir into the pollution tank, and receiving the pollutant-free liquid from the chamber into the liquid tank.
    Type: Grant
    Filed: December 5, 2002
    Date of Patent: October 4, 2005
    Inventors: Clark Joseph Use, John Sebastian Moll
  • Patent number: 6939461
    Abstract: A chamber has an inlet for receiving polluted storm-water runoff and an outlet for the storm water to flow out. Within the chamber is a collection reservoir having an adjustable weir with a skimming edge for skimming off floating matter such as motor oil, other hydrocarbons, and detergents. In alternative embodiments, there are included a screen, one or more baffles, and/or a pivotal filter for further dispersing, detaining, and/or filtering the storm water.
    Type: Grant
    Filed: December 5, 2002
    Date of Patent: September 6, 2005
    Inventors: Clark Joseph Use, John Sebastian Moll
  • Patent number: 6936163
    Abstract: A chamber having an inlet for receiving polluted storm-water runoff and an outlet for the storm water to flow out. Within the chamber is a pivotal filter that catches clay during typical storm flows and pivots out of the way during higher flows. In alternative embodiments, there are included a screen, one or more baffles, and/or a collection reservoir for further dispersing, detaining, and/or filtering the storm water.
    Type: Grant
    Filed: December 5, 2002
    Date of Patent: August 30, 2005
    Inventors: Clark Joseph Use, John Sebastian Moll
  • Patent number: 6905611
    Abstract: The invention refers to a device for separating a surface layer of a liquid by a container submerged in the liquid. The container includes a bottom, a wall member, connected to the bottom and having a variable length, and a separating member, which is connected to the wall member and communicates with a space in the container via an opening. An overflow portion of the separating member is located below a free liquid surface of the surface layer and permits the flowing of liquid. A discharge conduit extends from the space for liquid discharge. A floating member, connected to the separating member, floats on the liquid outside the container and exerts a lifting force upon the separating member in a direction prolonging the wall member. A submerging member is connected to the separating member and located below the over flow portion.
    Type: Grant
    Filed: March 9, 2001
    Date of Patent: June 14, 2005
    Assignee: Alfa Laval Corporate AB
    Inventor: Bengt Gustafsson
  • Patent number: 6902678
    Abstract: A system and method for treating and removing hydrocarbon and other contaminants in bilge and ballast water, utilizing a multiple progressive process that chemically and electrically treats-and removes contaminants. Wastewater, received by a sump, is transmitted to a holding tank and treated, over a period of time while-influent wastewater continues off loading. The wastewater is pumped to an oil/water separator tank that decants free-floating oil from the wastewater to an oil retention tank. The wastewater then undergoes an electrocoagulation process where emulsions are broken and compounds that further aid treatment are created. The treated water flows to a retention/separation tank where contaminant particles coalesce and separate. Water is decanted and transferred to a clean water holding tank through an ozone injection system and an activated carbon filter. Treated water is recirculated until it exits the system meeting discharge limits for organics and metals allowing release into the environment.
    Type: Grant
    Filed: September 30, 2003
    Date of Patent: June 7, 2005
    Inventor: Gary A. Tipton
  • Patent number: 6899231
    Abstract: A settling device (1) for liquid treatment including a plurality of inclined, spaced-apart panels (5) each providing an upper settling surface for receiving settled out solid contents of the liquid to be treated, wherein the panels (5) are supported in a box-like structure (2,3,4) including two side walls, and wherein said device includes an inlet or inlets for liquid to be treated and an outlet or outlets for purified liquid. At least one of the side wall sides of the box-like structure (2,3,4) is provided, at the top, with a top portion to be positioned vertically so as to obtain a purified liquid level inside the device between a low level which is below a upper portion of the inclined panels and a high level which is above said upper portion of the panels.
    Type: Grant
    Filed: November 22, 2002
    Date of Patent: May 31, 2005
    Assignee: Nordic Water Products AB
    Inventor: Hans F. Larsson
  • Patent number: 6887387
    Abstract: A skimmer for removing oil and paramagnetic chips from a contaminated body of machine tool coolant. The skimmer includes a frame and an endless tube partially trained within the frame that defines a travel path. The path of the tube includes a first section within the body of coolant and a second section out of the body of coolant. The skimmer further includes a magnet disposed within the tube, a drive system mounted to the frame and operatively coupled to the tube to power travel of the tube, and a wiper connected to the frame at a position along the travel path. The wiper is advantageously positioned adjacent to the tube such that the wiper removes oil and metal chips carried by the tube. A receptacle is includes that delineates a collection space positioned below the wiper to receive oil and metal chips.
    Type: Grant
    Filed: August 25, 2003
    Date of Patent: May 3, 2005
    Assignee: Abanaki Corporation
    Inventor: Mark T. Hobson
  • Patent number: 6881329
    Abstract: The invention relates to a gravity separator for an effluent made up of a multi-phase fluid mixture comprising at least a heavy first phase and a supernatant second phase. According to the invention, said separator includes adjustment means for adjusting its geometrical separation characteristics.
    Type: Grant
    Filed: April 26, 2001
    Date of Patent: April 19, 2005
    Assignee: Schlumberger Technology Corporation
    Inventors: Jul Amado, Baptiste Germond, Pierre Le Foll
  • Patent number: 6878270
    Abstract: A low cost oil, grease removal assembly includes a rotomolded plastic container having an inlet and an outlet; a rotomolded plastic basket support located at the inlet inside the container; a rotomolded plastic outlet baffle located in the container at the outlet; a plurality of container cover sections including a first section to cover the basket support, a second container cover section having an oil, grease removal mechanism downstream of the basket support and upstream of the outlet baffle, and a third container cover section to cover the outlet baffle.
    Type: Grant
    Filed: January 29, 2004
    Date of Patent: April 12, 2005
    Assignee: Thermaco, Inc.
    Inventors: William C. Batten, Bruce W. Kyles
  • Patent number: 6868974
    Abstract: For increasing the capacity of a continuously operating sedimentation filtration device, the processing liquid to be cleaned is supplied before or adjacent to the filter body on opposed sides into the sedimentation container. Underneath the filter body, a comparatively high settling chamber is formed and between the filter body and the supply lines a separating plate is provided so that the processing liquid to be cleaned is guided mandatorily into the settling chamber. The cross-sections of the supply lines provided on opposed said are comparatively large so that only minimal flow velocities of the incoming medium will occur.
    Type: Grant
    Filed: March 10, 2003
    Date of Patent: March 22, 2005
    Inventor: Klaus Hoffmann
  • Patent number: 6866778
    Abstract: A drainage tank for granular material/liquid mixture includes a low part and a high part provided with a lid. A device for separating the liquid and the granular material is arranged in the low part. A device for evacuating excess liquid is arranged in the high part and includes a number of overflow sleeves passing through the lid. The overflow sleeves have, above the lid, an overflow edge that is adjustable in height.
    Type: Grant
    Filed: December 24, 2001
    Date of Patent: March 15, 2005
    Assignee: Paul Wurth S.A.
    Inventors: Guy Kerschenmeyer, Wolfgang Van Hooff, Jean Hartz
  • Patent number: 6849176
    Abstract: An oil/grease separator separates a lighter liquid from a mixture of the heavier liquid and a lighter liquid. A housing has an inner volume, an inlet to receive influent flow, an outlet to discharge the heavier liquid, which defines a static liquid level, and an outlet port above the static liquid level to discharge substantially all of the lighter liquid and portions of the heavier liquid. The lighter liquid floats on the heavier liquid, so that large volume flows into the inlet raises the liquid level in the housing, flowing the floating lighter liquid through the outlet port.
    Type: Grant
    Filed: September 4, 2003
    Date of Patent: February 1, 2005
    Assignee: Thermaco, Inc.
    Inventors: William C. Batten, Bruce Kyles, Charles Kemp
  • Patent number: 6821415
    Abstract: A self-adjusting fluid surface skimmer and a wastewater treatment system incorporating the same are provided. In one embodiment, the skimmer includes an intake passage and an outlet passage. The intake passage comprises first and second passageways connected by a flexible coupling. A collar is positioned around the first passageway near an intake opening. At least one buoyant member is attached to the collar and facilitates self-adjustment of the skimmer. A gas inlet is disposed in the outlet passage and allows for the movement of gas through the outlet passage, which creates a suction effect in the intake passage. The wastewater treatment system comprises an aeration tank disposed in a settling tank such that a clearance is created between the two tanks. A skimmer according to the present invention is disposed within the clearance. The skimmer enables further removal of solids from treated fluid within the settling tank prior to leaving the treatment system.
    Type: Grant
    Filed: February 13, 2002
    Date of Patent: November 23, 2004
    Inventor: Matthew L. Sharb
  • Patent number: 6817476
    Abstract: A water clarification system for removing suspended solids from a fluid, such as sewage, using gravity. The water clarification system may include a plurality of settling plates releasably coupled to a housing. The housing positions the settling plates at acute angles relative to a substantially horizontal line using a plurality of guides. The settling plates are kept in position using one or more flanges that are releasably coupled to side walls of the housing. The water clarification system operates by receiving a fluid through an inlet orifice located near bottom sections of the plurality of settling plates. The fluid travels in the spaces between adjacent settling plates and through apertures in top flanges of the settling plates. The fluid collects in an exit channel that is formed by the top flanges of the settling plates.
    Type: Grant
    Filed: January 31, 2003
    Date of Patent: November 16, 2004
    Assignee: Aerex Industries, Inc.
    Inventors: Thomas A. Donnick, Jr., Robert E. Brayton
  • Patent number: 6800195
    Abstract: A low cost oil, grease removal assembly includes a rotomolded plastic container having an inlet and an outlet; a rotomolded plastic basket support located at the inlet inside the container; a rotomolded plastic outlet baffle located in the container at the outlet; a plurality of container cover sections including a first section to cover the basket support, a second container cover section having an oil, grease removal mechanism downstream of the basket support and upstream of the outlet baffle, and a third container cover section to cover the outlet baffle.
    Type: Grant
    Filed: June 4, 2002
    Date of Patent: October 5, 2004
    Assignee: Thermaco, Inc.
    Inventors: William C. Batten, Bruce W. Kyles
  • Patent number: 6797161
    Abstract: A chamber having an inlet for receiving polluted storm-water runoff and an outlet for the storm water to flow out. Within the chamber are a screen, one or more baffles, a collection reservoir, and a pivotal filter. The screen is elevated for separating and suspending miscellaneous debris such as vegetative matter, paper, and plastic. The baffles increase storm-water residence time to encourage settling of particulate matter such as sand and grit. The collection reservoir has an adjustable weir for skimming off floating matter such as motor oil, other hydrocarbons, and detergents. And the pivotal filter catches clay during typical storm flows and pivots out of the way during higher flows. In addition, a method for maintaining the pollution trap includes removing the screen for cleaning, suctioning out the particulate matter and oil, and replacing the pivotal filter member.
    Type: Grant
    Filed: August 12, 2002
    Date of Patent: September 28, 2004
    Inventors: Clark Joseph Use, John Sebastian Moll
  • Publication number: 20040168967
    Abstract: A floating decanter and method for charging supernatant from a vesel without drawing floating solids or scum into the discharge. The decanter includes a weir (16) having a central opening, and a solid bottom side, a float (12) adjacent to an outer edge of the weir, a weir lift and drive (14) having at least two screw jacks (20) attached to the float and a attachment arm (26) extending to the weir, and an discharge pipe (32) attached to the bottom of the weir. The weir is lowered with respect to the float to discharge supernatant.
    Type: Application
    Filed: November 24, 2003
    Publication date: September 2, 2004
    Inventors: James E Thompson, Jeffrey S Devine, Michael Combs
  • Publication number: 20040164014
    Abstract: An oil skimmer for removing oil floating on surfaces of bodies of water. The oil skimmer includes a support frame, respective drive pulley and guide pulleys rotatably mounted to the support frame on respective shafts, and a drive train which rotatively drives the drive pulley and guide pulleys. A skimmer hose in the form of a loop to which oil adhere floats on the body of water and is driven by the drive pulley through the guide pulley onto and off the surface of the body of water carrying adhered oil. A skimmer hose scraper disposed between the drive and guide pulleys removes the oil from the skimmer hose into a collection receptacle. The drive and guide pulleys comprise replaceable, quick changing inner and outer pulley halves that sandwich respective central hubs therebetween to space the pulley halves to fit skimmer hoses of different cross-sectional sizes. The central hubs with attached drive and guide pulley halves are affixed to the drive shafts using a quick release nut which threads to the shafts.
    Type: Application
    Filed: February 21, 2003
    Publication date: August 26, 2004
    Inventors: Blake W. Rhein, Frances L. Deley
  • Patent number: 6763952
    Abstract: A composite fluid separator capable of isolating a first liquid from a composite fluid having a first and second liquid, in which the first and second liquids have differing specific gravities. An outer housing encloses a separation chamber. An inlet port delivers the composite fluid through an elongated spillway into the sump of the chamber. Positioned between the inlet port and the outlet port is a plurality of stacked baffles, composed of individual separation flow plates, placed in an inclined relationship. The plurality of baffles creates a flow path in which the composite fluid is forced to flow over each of the individual separation flow plates as it travels upward in the separation chamber toward the outlet port.
    Type: Grant
    Filed: February 14, 2002
    Date of Patent: July 20, 2004
    Inventor: Gary David Hanks
  • Patent number: 6763950
    Abstract: A method of and an apparatus for rejuvenating a wastewater treatment system of the type including a septic tank, an aerobic treatment unit or the like connected by a pipe to a plugged downstream soil absorption system includes a wastewater treatment unit which is interposed between the septic unit/aerobic treatment unit and the downstream soil absorption system. The wastewater treatment unit includes a single piece or a multiple piece solids settling and retention basin within which is suspendingly supported a wastewater treatment mechanism essentially of the type disclosed in U.S. Pat. No. 5,264,120. The wastewater treatment mechanism includes filters for filtering and settling solids from wastewater and flow equalization ports for effecting flow equalization thereby eliminating flow surges to the downstream plugged soil absorption system.
    Type: Grant
    Filed: June 11, 2002
    Date of Patent: July 20, 2004
    Assignee: Norwalk Wastewater Equipment Company
    Inventor: Jan D. Graves
  • Patent number: 6758965
    Abstract: The invention relates to an apparatus for treating wastewater from catering industry, especially restaurants. Said apparatus comprises a single reactor tank, said reactor tank comprising: an inlet; an outlet; and an oil-tight tank therein an upper oil film zone, an anoxic zone below said oil film zone and an anaerobic zone below said anoxic zone are divided; an upper net and a lower net are respectively located in the anoxic and anaerobic zones; and some plastic suspending media as biocarriers are introduced in the anoxic and anaerobic zones. The apparatus requires minimal space, energy and operation costs.
    Type: Grant
    Filed: August 19, 2002
    Date of Patent: July 6, 2004
    Assignee: Great Vision Bioenvironmental Engineering Limited
    Inventor: Guang Hao Chen
  • Patent number: 6755978
    Abstract: The invention relates to an apparatus for separation of a first fluid from a mixture of at least the first fluid and a second fluid and a method for doing the same. The apparatus is preferably located downhole, but also can operate on the surface. According to the invention, the apparatus comprises:—a production pipe for flowing the mixture;—at least one settling chamber surrounding the production pipe;—at least one aperture allowing the mixture flowing into the production pipe to flow into the settling chamber; and—an exit pipe, connected to the settling chamber, allowing the first fluid to flow out of the settling chamber.
    Type: Grant
    Filed: April 18, 2002
    Date of Patent: June 29, 2004
    Assignee: Schlumberger Technology Corporation
    Inventor: Gary Martin Oddie
  • Publication number: 20040118774
    Abstract: A liquid reconditioning system separates mixtures of two liquids that are insoluble in one another, such as a coolant and tramp oil from a machining operation. The mixtures of the two liquids are delivered from a sump, or collection basin, to a separator by means of a venturi pump. A tank is provided for holding the two liquids after they are separated whereby they may be individually removed from the holding tank. One of the separated liquids, in the case of a coolant and tramp oil, the coolant, is pumped through the venturi pump to create the vacuum, or negative pressure, that draws the mixtures of the two liquids from the sump to the separator.
    Type: Application
    Filed: December 11, 2003
    Publication date: June 24, 2004
    Inventors: Steven Davidian, Christopher Fenn
  • Patent number: 6743358
    Abstract: A skimmer apparatus for collecting material, particularly oil, floating on the surface of a body of water, comprises collecting vessel with a collection compartment. The collection compartment includes an upper subcompartment delimited laterally by an inner wall having a skimming weir forming an inlet to the collection compartment and a lower subcompartment which is delimited laterally by an outer wall and communicates with a bottom outlet. Connected with the collection compartment is means for discharging water therefrom through the bottom outlet. The inner wall and the outer wall delimit a separation compartment for the floating material. This compartment is in open communication with the upper subcompartment of the collection compartment. A valve is provided at the top of the separation compartment and when in an open position connects the separation compartment with the upper subcompartment of the collection compartment.
    Type: Grant
    Filed: February 19, 2002
    Date of Patent: June 1, 2004
    Assignee: Surfcleaner AB
    Inventor: Stig Lundbäck