With Pump, Gas Pressure, Or Suction Source Patents (Class 210/416.1)
  • Patent number: 6936172
    Abstract: A water treatment system which comprises a reverse osmosis device having a fluid inlet, a permeate outlet and a concentrate outlet with a pump to pump a fluid through the reverse osmosis device, and a magnetic treatment device situated upstream of the fluid inlet, and filter means arranged to filter fluid from the concentrate outlet prior to recycling the fluid upstream of the magnetic treatment device. When a plurality of passes, the system reduces membrane fouling as the crystal structure of the precipitate is changed to reduce the amount of calcite to a deposit which precipitates mostly as aragonite.
    Type: Grant
    Filed: January 24, 2003
    Date of Patent: August 30, 2005
    Inventor: L. Claude Hebert
  • Patent number: 6936176
    Abstract: A transportable water treatment system comprising: an inlet adapted to receive water having a pressure of between 10 to 60 psig, a primary regenerable filter connected so as to receive water that has flown through the inlet, the primary regenerable filter configured to separate solids from water flowing therethrough, a secondary regenerable filter, the secondary regenerable filter connected downstream from the primary regenerable filter, and a chemical feed unit connected downstream of said secondary regenerable filter, the chemical feed unit configured to treat water flowing through introduction of chemicals to the water, a water discharge pipe adapted to discharge treated water from the chemical feed unit, where said inlet, the primary regenerable filter, the secondary regenerable filter, the chemical feed unit, and the discharge pipe make up a transportable water treatment and the transportable water treatment is adapted to fit within a bed of a sub-compact pickup truck.
    Type: Grant
    Filed: July 15, 2004
    Date of Patent: August 30, 2005
    Assignee: Water Missions International
    Inventors: George C. Greene III, George C. Greene IV, Sean P. Kerrigan
  • Patent number: 6926822
    Abstract: A filtration apparatus includes a laundry waste sump, a primary 50 micron static screen filter, a 9,000 gallon equalization tank, at least one secondary media/carbon filter, a sludge holding tank with a pump to return excess water to the equalization tank, a backwash pump, an air blower, and a clear well tank water source for backwash. An exemplary embodiment of the invention also includes a surge tank between the primary and secondary filters and a surge tank between the secondary filter and the clear well tank.
    Type: Grant
    Filed: January 6, 2004
    Date of Patent: August 9, 2005
    Inventor: James P. Sharkey
  • Patent number: 6913152
    Abstract: A vacuum filtration apparatus (900) for detecting microorganisms and particulates in liquid samples. The apparatus includes a base (901), an absorbent pad (991), a filter (990), a funnel (930), and a lid (960). The funnel is releasably attached to the base, and may contain an integral flexible seal for releasably sealing the filter to the base. The outer wall of the lid may be segmented to make it flexible, this flexibility allows it to be releasably attached to the funnel or the base. The apparatus is designed so that any funnel will fit any base, and any lid will fit any base or any funnel when all parts are manufactured to normal tolerances. The apparatus may be configured to to keep the filter wrinkle free in both the dry and wet states.
    Type: Grant
    Filed: October 3, 2002
    Date of Patent: July 5, 2005
    Inventor: Peter Zuk, Jr.
  • Patent number: 6911145
    Abstract: An apparatus for separating liquid from a slurry comprised of a solid and a liquid is described. The apparatus comprises a container sized and configured to receive the slurry which container comprises a removable cover sized and configured to enclose an atmosphere within the container when the cover is attached to the container, a filter disposed within the container for separating the liquid from the slurry, and a vacuum pump in fluid communication with the enclosed atmosphere of the container which pump is configured to create a vacuum within the container that causes the liquid to move through the filter, which pump is configured to vacuum material comprised of solid material, liquid material, gas or a combination of two or more of the foregoing. Related methods of separating liquid from the slurry using the apparatus of the invention are also described.
    Type: Grant
    Filed: July 19, 2002
    Date of Patent: June 28, 2005
    Assignee: Walker-Dawson Interests, Inc.
    Inventors: Robert J. Hutchinson, Richard F. Dawson
  • Patent number: 6905609
    Abstract: The present invention relates to the treatment and disposal of waste, including sanitary, petroleum, and other organic wastes. More specifically, the present invention treats and disposes of these types of waste from portable and remote waste generating sources, such as passenger carrying vehicles and remote facilities where sewage and septic systems are impractical. The invention makes use of thermal energy liberated from devices that generate a hot exhaust stream, such as internal combustion engines. The invention generally involves the passing of a waste material from a tank through a homogenizing device. The homogenizing device reduces the particle size and thoroughly mixes the waste stream so that it maybe injected into a hot exhaust stream, which converts the waste stream into water vapor, gas and inert ash.
    Type: Grant
    Filed: February 6, 2003
    Date of Patent: June 14, 2005
    Inventor: Namon A. Nassef
  • Patent number: 6905612
    Abstract: A plasma concentrator for producing plasma concentrate from a plasma from which erythrocytes have been substantially removed. The device comprises a concentrating chamber having an inlet port and an concentrate outlet, the concentrating chamber containing hydrogel beads and at least one inert agitator; and a concentrate chamber having an inlet communicating with the concentrator outlet through a filter, and having an plasma concentrate outlet port. A process for producing plasma concentrate from plasma from which erythrocytes have been substantially removed, comprising the steps of a) moving the plasma into a concentrating chamber containing hydrogel beads and an agitator to form a hydrogel bead-plasma mixture; b) causing the agitator to stir the hydrogel bead-plasma mixture, facilitating absorption of water by the beads from the plasma, until a hydrogel bead-plasma concentrate is formed; and c) separating the plasma concentrate from the hydrogel beads by passing the plasma concentrate through a filter.
    Type: Grant
    Filed: March 21, 2003
    Date of Patent: June 14, 2005
    Assignee: Hanuman LLC
    Inventors: Randel Dorian, Richard Wood Storrs
  • Patent number: 6899811
    Abstract: An apparatus for filtering a liquid in a tank has a plurality of elements and a frame for holding the elements while they are immersed in the liquid. The elements have a plurality of hollow fibre membranes attached to and suspended between an upper header and a lower header. The membranes are in fluid communication with one or more permeate channels in one or more of the headers. Releasable attachments between the headers and the frame allow the frame to releasably hold the elements by their headers. The size and configuration of the frame determines the positions of the upper and lower headers of each element relative to each other. Connections between the permeate channels and one or more permeate collection tubes attached to the frame are releasable and resealable connections which are made or broken automatically by the movements involved in inserting or removing an element into or out of the frame.
    Type: Grant
    Filed: March 2, 2004
    Date of Patent: May 31, 2005
    Assignee: Zenon Environmental Inc.
    Inventors: Pierre Lucien Cote, Steven Kristian Pedersen
  • Patent number: 6896798
    Abstract: A pump and filtration system for a pond or pool. The filtration mechanism has a collapsible bag in which dirty water is forced through it from one direction in order to clean the water while cleaning water is forced through the bag in the opposite direction in order to clean the filter bag. The filter bag is positioned in a housing and separated from the walls of the housing by a mesh or screen-type member. A tapered nozzle (water jet member) is used to increase the flow of the water entering the flotation unit. A tubular member is lowered through the housing in order to clean contaminants from the collapsible filter bag. The dirty water is directed to a flower bed or the like.
    Type: Grant
    Filed: October 1, 2002
    Date of Patent: May 24, 2005
    Assignee: Tetra Holding (US), Inc.
    Inventors: Donald L. Dover, Paul Anthony Moore
  • Patent number: 6893562
    Abstract: A device and method for removal of liquid from the downstream side of a membrane or a well, such as a well of a multiwell plate. More specifically, the present invention is directed to a wicking structure, which channels droplets of liquid away from a membrane in communication with a plurality of wells. In the preferred embodiment, the wicking structure is placed in a manifold.
    Type: Grant
    Filed: May 5, 2000
    Date of Patent: May 17, 2005
    Assignee: Millipore Corporation
    Inventors: Jeffrey S. Busnach, Brian Foley, Phillip Clark, Joseph E. Gabriels
  • Patent number: 6893556
    Abstract: A pretreatment apparatus for performing pretreatment before a painting process includes a treatment tank to be filled with a treatment liquid for degreasing and chemical conversion. A circuit section forms a circulation path for circulating the treatment liquid from the treatment tank to the treatment tank. A purifying section removes dust, chemical sludge and oil from the treatment liquid circulated to the treatment tank through the circulation path.
    Type: Grant
    Filed: September 17, 2002
    Date of Patent: May 17, 2005
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Hideaki Yaegashi, Tsuneo Sakauchi, Osamu Tanaka, Hiroyuki Kishi, Masahiro Obika
  • Patent number: 6893573
    Abstract: A pump and filtration system for a pond or pool. The filtration mechanism has a filter member in which water with suspended solids in it is forced through the filter member to clean the water. The filter member is positioned in a housing and separated from the walls of the housing by a screen-type separation member. A water jet member increases the flow of the water entering the housing. The filter member is cleaned and solids are flushed from the housing in a backflush procedure.
    Type: Grant
    Filed: October 1, 2002
    Date of Patent: May 17, 2005
    Assignee: Tetra Holding (US), Inc.
    Inventors: Donald L. Dover, Paul Anthony Moore
  • Patent number: 6890428
    Abstract: A fryer filtration arrangement includes an oil drain pan and associated filter assembly. The filter assembly may be removably connected to the pan by a friction fit coupling arrangement. The pan may be positioned in latch-free movable drawer. The fryer vat may be shaped such that particulate matter settles therein along a substantially linear region and oil circulated during a filtration operation may flow along the substantially linear region to push the settled particulate matter to the pan and filter assembly.
    Type: Grant
    Filed: April 23, 2003
    Date of Patent: May 10, 2005
    Assignee: Illinois Tool Works, Inc.
    Inventor: Alfred Edward Mullaney, Jr.
  • Patent number: 6890427
    Abstract: A waste water outlet unit, for a shower tray having a drain opening, comprises a base element which is locatable on the underside of the shower tray to cover the drain opening, and a clamp element which is locatable on the topside of the shower tray and which is engageable with the base element to clamp the base element to the underside of the shower tray. The clamp element has an aperture through which waste water from the shower tray can pass into the base element, and a filter element which is positionable over the aperture and which can be removed to enable access to the interior of the unit while maintaining the engagement between the base and clamp elements.
    Type: Grant
    Filed: February 24, 2003
    Date of Patent: May 10, 2005
    Assignee: DLP Limited
    Inventors: James Edward Self, Graham Robin Lock
  • Patent number: 6887376
    Abstract: A hydraulic system includes a storage tank, a cover assembly and a filter assembly for filtering hydraulic fluid, gasses and air. The tank includes an opening and an attachment ring bounding the opening. The cover assembly has an inlet port and is removably connected to the attachment ring to support and enclose the filter assembly in the tank. The filter assembly includes a filter element having a filter media ring for filtering hydraulic fluid, and an annular breather filter surrounding the filter media ring at one end of the ring for filtering vent gas and air. The filter element is supported in a diffuser tube received in the tank opening. The diffuser tube includes a stand-off ring with a convoluted groove or channel to provide a vent path between the diffuser tube and the tank opening to direct vent gasses and ambient air through or around the breather filter.
    Type: Grant
    Filed: March 17, 2003
    Date of Patent: May 3, 2005
    Assignee: Parker-Hannifin Corporation
    Inventors: Albert F. Cella, Donald J. Gembolis, Daniel W. Miller
  • Patent number: 6875364
    Abstract: A self-cleaning, back-washable filter apparatus and method for use with a pumping apparatus which is lowered into a well casing. The filter apparatus includes a filter basket having a manifold with several tubes extending therefrom. A filter sock encases at least a portion of the filter basket to block sand or other solid particles from entry into the pump intake. Pressurized gas or fluid is directed to the manifold and then through perforations or jets distributed along the length of the tubes. Bursts of the pressurized gas are directed from the perforations or jets to the interior of the filter apparatus and then sprayed from the perforations or jets in an outwardly direction against interior surfaces of the filter sock. Air or fluid bursts from the perforations impinge upon the interior surfaces of the filter sock and dislodge or expel entrapped particulate material.
    Type: Grant
    Filed: October 18, 2002
    Date of Patent: April 5, 2005
    Assignee: Gordon Construction, Inc.
    Inventor: Robert R. Gordon
  • Patent number: 6863807
    Abstract: An apparatus and method are provided for removing accumulated underwater debris from a reservoir for a recirculating water system, such as used for a golf course sprinkler system. An eductor is provided which is driven by a high pressure water pump. The high pressure creates a vacuum which is utilized to actuate a vacuum line. The vacuum line is moved to and fro in the reservoir to entrain the debris from the reservoir in water and to carry the entrained debris to the eductor. The entrained debris is discharged from the eductor into a separator having a permeable membrane which traps the debris and allows the water to return to the reservoir. Various separators are provided. The eductor includes an adjustably mounted nozzle to adapt to different sized debris being removed from the reservoir.
    Type: Grant
    Filed: September 24, 2003
    Date of Patent: March 8, 2005
    Inventor: William Randall Crawford, III
  • Patent number: 6857162
    Abstract: The present invention relates to a cleaning and/or treatment device for cleaning and/or treating surfaces such as floors, pavements and carpets. The invention particularly relates to a cleaning and/or treatment device using cleaning/treatment solution, wherein the solution is recirculated and thereby used more than one time. The cleaning device comprises a filter unit for cleaning dirt from a dirty solution tank and means for recirculating said cleaned solution to a clean solution tank, wherein said filter unit comprise at least one cross-flow filter, said cross-flow filter preferably being a membrane filter. The invention also relates to a process of cleaning and/or treating surfaces using such a device.
    Type: Grant
    Filed: October 12, 1999
    Date of Patent: February 22, 2005
    Assignee: Nilfisk Advance A/S
    Inventor: Erik Rasmussen
  • Patent number: 6852219
    Abstract: A fluid separation and delivery apparatus and method are provided for filtering a fluid from a source and delivering a filtrate derived therefrom to a first destination, and delivering a decantate derived therefrom to a second destination. The fluid separation and delivery apparatus for the method comprises a filter device having an inlet port for connecting to a fluid source, a first outlet port for directing filtrate to a first destination, and a second outlet port for directing decantate to a second destination; an inlet pump connected between the inlet port of the filter device and the fluid source for pumping fluid at a flow rate of Qin into the filter device; and an outlet pump connected between the second outlet port of the filter device and the second destination for pumping fluid at a flow rate of Qout out of the filter device to the second destination.
    Type: Grant
    Filed: March 3, 2003
    Date of Patent: February 8, 2005
    Inventor: John M. Hammond
  • Patent number: 6846409
    Abstract: The present invention provides a liquid filtration device with internal flow paths that facilitate the purging of air bubbles from the device. The device includes internal channels that collect bubbles from fluid entering the filtration device and more efficiently direct fluid to sweep bubbles from the device during operation. The present invention also provides for an automatic means to minimize fluid loss during a vent process.
    Type: Grant
    Filed: September 13, 2001
    Date of Patent: January 25, 2005
    Assignee: Mykrolis Corporation
    Inventors: Marc Laverdiere, Michael Clarke
  • Patent number: 6843924
    Abstract: A water filtering system includes: a water intake system including a plurality of inlets in fluid communication with a water intake pump; and a containment/exclusion boom including (i) a support system positioned in a body of water, (ii) a curtain including a sheet of flexible fabric material that allows movement of water therethrough, the curtain having upper and lower ends with the upper end being connected to the support system, and (iii) means for maintaining the lower end of the curtain substantially against the floor of a body of water; wherein the curtain surrounds substantially all of the plurality of inlets and wherein, upon operation of the water intake pump, water is drawn through the curtain at which time the water is filtered, and subsequently filtered water is drawn through the plurality of inlets for delivery into the water intake system.
    Type: Grant
    Filed: December 8, 2003
    Date of Patent: January 18, 2005
    Assignee: Gunderboom, Inc.
    Inventors: Harold B. Dreyer, Todd Nottingham
  • Patent number: 6841076
    Abstract: The invention concerns a method for desalting water by reverse osmosis, in particular for desalting sea water, whereby salt water at a first pressure level is introduced into a pressure compensating device, and is conveyed from the pressure-compensating device at a second, higher pressure level into a membrane module, whereby desalted water and concentrated salt water are discharged from the membrane module. In order to increase the efficiency and consequently the energy balance of such a method, the invention proposes to continuously introduce the concentrated salt water, which has been discharged from the membrane module, at a second pressure level into the pressure-compensating device, wherein it is used to subject the salt water introduced into the pressure compensating device to the second pressure level, and to discharge the salt water and convey it to the membrane module. The invention also concerns a device for implementing this method.
    Type: Grant
    Filed: March 18, 2000
    Date of Patent: January 11, 2005
    Inventor: Aloys Wobben
  • Patent number: 6837990
    Abstract: A new vacuum cyclone seafood collection retainer is disclosed. Two men easily assemble this new cyclone collection retainer, made in portable sections, and the sections can be rotated for best orientation of the hose connections. This vacuum cyclone facilitates the use of a large-scale vacuum system to offload shrimp from the holds and bins of shrimp boats and trawlers up onto the dock and into collection tubs for weighing and processing. This new vacuum cyclone system will offload shrimp and other small seafood much faster, cheaper, and with less damage to the shrimp than the conventional methods now employed. One large-scale vacuum supply pump can be connected through a common vacuum supply tank to multiple vacuum cyclone collection retainers providing multiple unloading dockside facilities.
    Type: Grant
    Filed: May 30, 2003
    Date of Patent: January 4, 2005
    Inventor: Joseph Layne Orillion
  • Patent number: 6835353
    Abstract: A centrifuge tube assembly includes an elongate tubular receptacle and a cap that attached to the receptacle. The cap includes a pair of ports formed therethrough for communicating with an interior of the tubular receptacle. A pair of aspiration pipes having different lengths are engaged with the respective ports and extend longitudinally through the cylindrical receptacle. One of the pipes extends to a point proximate the bottom of the tubular receptacle and the other pipe extends to a level spaced above the bottom of the tube.
    Type: Grant
    Filed: June 6, 2002
    Date of Patent: December 28, 2004
    Assignee: Perfusion Partners and Associates, Inc.
    Inventors: Emery Smith, Patrick Pennie, David K. Buzenius
  • Publication number: 20040256308
    Abstract: A fluid filtration system includes a filter receiver located in a fluid reservoir housing and a replaceable filter module adapted to mount in the filter receiver. Fluid to be filtered is exposed to a filter media included in the filter module and mounted in a filter chamber provided in the filter receiver. The filtered fluid is discharged into a fluid reservoir located in the fluid reservoir housing and outside the filter receiver. Fluid is then pumped from the fluid reservoir to a fluid user and fluid discharged from the filter user is conducted to the filter chamber for filtration in the filter media.
    Type: Application
    Filed: July 19, 2004
    Publication date: December 23, 2004
    Inventor: Brian Glenn Yates
  • Patent number: 6833067
    Abstract: A drain device for draining flat roofs, balconies, terraces or other flat structures, has an inflow body provided with a collar rim. When the inflow body is mounted, the collar rim lies on the surface of the roof. A loose flange can be introduced into the inflow body. The flange also has a collar rim. A connector film can be tensed between the collar rims of the inflow body and the loose flange for establishing a tight connection of a covering layer between said two elements. In order to allow for abnormally large amounts of water to be drained, the inflow body is provided with a cavity, into which two drain pipes and lead. One of the drain pipes co-operates with a pressurized, i.e., a pumped drainage system, and the other one of the drain pipes cooperates with a free-flowing drainage system.
    Type: Grant
    Filed: May 14, 2003
    Date of Patent: December 21, 2004
    Assignee: Sita Bauelemente GmbH
    Inventor: Markus Dresmann
  • Patent number: 6833072
    Abstract: A flexible dip tube for a hand held sprayer has a filter element with a projection extending into the distal end of the dib tube for frictionally mounting the filter element thereto, the other end of the filter element extending beyond the distal end and containing filter material in communication with the interior of the tube, and a weight surrounding both the distal end and the projection of the filter element or weighting down the distal end during use.
    Type: Grant
    Filed: October 31, 2003
    Date of Patent: December 21, 2004
    Assignee: Saint-Gobain Calmar Inc.
    Inventors: Joseph R. Krestine, Linn D. Wanbaugh
  • Patent number: 6830679
    Abstract: A filtration device is provided in which wastewater, in the form of a colloidal solution containing microparticles, is guided to tank, circulated, and filtrated using a second filter. The device includes a gel film that is formed by suction on the surface of a first filter. The suction pressure in this process is made extremely weak to maintain the filtration capacity while extending intervals prior to clogging of second filter 2. Furthermore, a filtration device is realized with which the gel film of second filter that becomes adsorbed onto the surface of first filter can be separated readily by stopping the suction and filtration can be continued again thereafter.
    Type: Grant
    Filed: October 31, 2002
    Date of Patent: December 14, 2004
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Motoyuki Tsuihiji, Hirofumi Iinuma, Hiroyuki Umezawa, Masahiro Iseki
  • Patent number: 6827853
    Abstract: The present invention provides a method for removing an oil contaminant from a surface of an aqueous solution, comprising manually controlling a surface skimmer from a remote location to remove a layer or a batch of an oil contaminant from an oil-aqueous solution mixture by the skimmer, where the aqueous solution is contaminated by the oil as a result of an industrial process. The present invention also provides a system for carrying out the method, which comprises a surface skimmer, a collection means which is preferably a separator, a conduit connecting the skimmer to the collection means in an airtight fashion, and means for creating negative pressure in the skimmer, where the skimmer is capable of manual control from a remote location; in further embodiments, the system further comprises an air filtering means.
    Type: Grant
    Filed: July 1, 2003
    Date of Patent: December 7, 2004
    Assignee: Universal Separators, Inc.
    Inventors: Richard J. Terrien, David T. Walker
  • Patent number: 6821416
    Abstract: A decorative or landscape pond system which includes the skimmer assembly and a substantially horizontally-positioned, submersible and rotary pump in the skimmer assembly and supported on a bottom wall thereof. The skimmer assembly includes a side opening and a net and mat filter positioned within the skimmer below the opening and above the bottom wall. The pump is in elongated structure having an inlet/outlet section at one end, an electrical inlet section at the other end and an elongated electric motor section there between. A lubrication section is positioned between and sealingly engages the inlet/outlet section and motor section. A plurality of O-ring and face seals are provided for sealing the sections. The securement of the sections is either radially outward or radially inward of the O-rings and face seals to minimize leakage between sections or into the pump itself.
    Type: Grant
    Filed: September 19, 2002
    Date of Patent: November 23, 2004
    Assignee: Aquascape Designs, Inc.
    Inventors: David R. Kelly, Matthew J. Gulisano, Allan R. Kishpaugh, Donald J. Holder, Bruce B. Ordway
  • Publication number: 20040226871
    Abstract: A filter apparatus is provided for the filtering of substances from a fluid having a filter housing (2) which bounds a filter space (6) and which has an inlet (3) and an outlet (4) for the fluid to be filtered and having a filter element (5) which is provided in the filter space (6) and which is designed and arranged such that the filtering fluid can only flow through the filter element (5) from the inlet (3) to the outlet (4) of the filter housing (2) in operation, wherein a heating device (10) is provided for the heating of the fluid which includes a microwave source (11) in order to act on the fluid by microwaves.
    Type: Application
    Filed: April 19, 2004
    Publication date: November 18, 2004
    Applicant: Levitronix LLC
    Inventor: Reto Schob
  • Publication number: 20040226870
    Abstract: An improved outdoor aquatic pond having a installation template, a pond liner, a plenum unit chamber, a pump, a canister filter, and at least one artificial rock for connection with the rim of said pond. This invention provides for increased ease of installation as well as increased ease of maintenance.
    Type: Application
    Filed: March 15, 2004
    Publication date: November 18, 2004
    Inventor: Rick Sonnenberg
  • Publication number: 20040222167
    Abstract: A method and apparatus for particulate removal from liquids is disclosed and includes a Coanda tilted wedge wire screen in combination with a liquid-flow velocity control orifice mounted within a cylindrical air-tight vessel that can be operated under pressure. The liquid flow velocity control orifice and Coanda tilted wedge wire screen in combination with the pressurized system provides for highly efficient and uniform removal of particulate matter that includes a self-cleaning feature.
    Type: Application
    Filed: May 5, 2003
    Publication date: November 11, 2004
    Inventor: Robert K. Weir
  • Patent number: 6814868
    Abstract: A process for reducing hair, trash or fibrous materials concentration in a waste water treatment system having a membrane filter in conjunction with a bioreactor comprises flowing a portion of mixed liquor through a screen in a side stream. The flow rate of the mixed liquor through the screen is about no more than the average design flow rate of the waste water treatment system. The screenings can be either treated or disposed of directly or in combination with the waste activated sludge. The openings of the screen are between about 0.10 mm and about 1.0 mm in size as can be provided by, for example, a rotary drum screen. The invention can be used to provide both screening and sludge thickening.
    Type: Grant
    Filed: June 28, 2001
    Date of Patent: November 9, 2004
    Assignee: Zenon Environmental Inc.
    Inventors: Deonarine Phagoo, Pierre Coté, Hidayat Husain, Doug Thompson, Baoqiang Ling
  • Publication number: 20040217059
    Abstract: Filtration cells capable of direct sampling of a fluid from a container and which may be used for microfiltration of both small and large microvolumes of a fluid to be filtered are provided. Also a process for directly transferring a fluid to be filtered from a container to a filtration cell is described. The filtration cells have one or more reservoirs and are in communication with fluid in a container to be filtered through a piercing instrument connected to a base and support for a reservoir that receives the fluid to be filtered after it passed across a filter membrane. The filtration cell may then be pressurized and vented to allow fluid to be filtered to reciprocally and tangentially pass across a filter membrane between either a container having a fluid to be filtered and a single reservoir for small volume filtrations or between two reservoirs after pressurizing a fluid to be filtered into the reservoirs from a container using a piercing instrument.
    Type: Application
    Filed: May 25, 2004
    Publication date: November 4, 2004
    Applicant: Bio/Data Corporation
    Inventors: William E. Coville, David M. St. Onge
  • Patent number: 6811687
    Abstract: The present invention aims at improving pool cleaners. The improved pool cleaners utilize toroidal vortex technology to provide efficient fluid flow in a sealed system. The sealed system prevents dirt from escaping into surrounding fluid and retains kinetic energy of the flowing fluid. The present invention is also quieter, lighter, and simpler than conventional designs.
    Type: Grant
    Filed: January 17, 2002
    Date of Patent: November 2, 2004
    Assignee: Vortex Holding Company
    Inventor: Lewis Illingworth
  • Patent number: 6808626
    Abstract: A system for separating solids from a fluid stream. The system includes a first separator device mounted to a container. The container includes a settling compartment and baffle plate module, with the initial settling compartment receiving the fluid from the first separator device. The fluid stream proceeds through the baffle plate module. The solids within the fluid stream will descend to the bottom of the container. A spiral blade is positioned at the bottom of the container, with the spiral blade adapted to convey solids to a first pump member. The speed of rotation of the spiral blade may be varied. The first pump member discharges the slurry to a second separator device. The second separator device will discharge the separated fluid stream into the baffle plate module. In one embodiment, the first separator device is a linear shaker and the second separator device is a cyclone separator and linear shaker mounted in tandem.
    Type: Grant
    Filed: November 4, 2002
    Date of Patent: October 26, 2004
    Assignee: Del Corp.
    Inventor: Robert M. Kulbeth
  • Patent number: 6805160
    Abstract: A flow control device to be coupled to the intake of a pump including a base, an outlet plate having an outlet formed therein generally opposing the base, and a plurality of annular baffles carried between the base and the outlet plate. The annular baffles are spaced apart to define a plurality of inlets. Each of the plurality of annular baffles has an inner diameter, the inner diameters defining an interior void.
    Type: Grant
    Filed: March 8, 2002
    Date of Patent: October 19, 2004
    Inventor: William H. Keichler
  • Publication number: 20040200763
    Abstract: A pipe mounting apparatus for a water filter includes a first half body with a top, a first pipe assembly, a second half body with a top, a second pipe assembly and a mounting bracket. The first pipe assembly is formed on the top of the first half body and has a pump inlet and a pump outlet. The second half body is attached to the first half body. Likewise, the second pipe assembly is formed on the top of the second half body and communicates with the first pipe assembly to form a water filtering loop. The mounting bracket is mounted over the two half bodies to support a booster pump. Consequently, the booster pump will be quickly and easily connected to the pump inlet and the pump outlet with fittings or pipes to pump the water into the water filter.
    Type: Application
    Filed: April 11, 2003
    Publication date: October 14, 2004
    Inventor: Po-Chi Liang
  • Patent number: 6797173
    Abstract: An apparatus and method suitable for use in a reverse osmosis system has a process chamber having a feed inlet, a low pressure outlet and a high pressure outlet. A feed pump is used to increase the feed pressure to process the process chamber. A common shaft having rotatably coupled thereto a booster pump fluidically coupled between the feed pump and the feed inlet and an energy recovery turbine fluidically coupled to the high pressure concentrate outlet. The energy recovery turbine drives the booster pump.
    Type: Grant
    Filed: October 31, 2000
    Date of Patent: September 28, 2004
    Inventor: Eli Oklejas, Jr.
  • Publication number: 20040182788
    Abstract: A plasma concentrator for producing plasma concentrate from a plasma from which erythrocytes have been substantially removed. The device comprises a concentrating chamber having an inlet port and an concentrate outlet, the concentrating chamber containing hydrogel beads and at least one inert agitator; and a concentrate chamber having an inlet communicating with the concentrator outlet through a filter, and having an plasma concentrate outlet port. A process for producing plasma concentrate from plasma from which erythrocytes have been substantially removed, comprising the steps of a) moving the plasma into a concentrating chamber containing hydrogel beads and an agitator to form a hydrogel bead-plasma mixture; b) causing the agitator to stir the hydrogel bead-plasma mixture, facilitating absorption of water by the beads from the plasma, until a hydrogel bead-plasma concentrate is formed; and c) separating the plasma concentrate from the hydrogel beads by passing the plasma concentrate through a filter.
    Type: Application
    Filed: March 21, 2003
    Publication date: September 23, 2004
    Inventors: Randel Dorian, Richard Wood Storrs
  • Patent number: 6793813
    Abstract: A sealed filtration system includes a housing, having two chambers, that can be submerged. One chamber houses a plurality of subchambers in which various filter media are located, and the other chamber houses a submersible pump or additional filer media. A drain chamber and port is also defined within the housing for each chamber. An external pump can be to the housing.
    Type: Grant
    Filed: October 28, 2002
    Date of Patent: September 21, 2004
    Inventors: Oscar H. Ethridge, Charlotte S. Ethridge
  • Patent number: 6790349
    Abstract: A waste treatment apparatus for the treatment and processing of wet material is provided. The apparatus comprises an inlet hopper adapted for receipt of the wet material. A pre-conditioning unit is provided having an input and an output end wherein the wet material is received from the inlet hopper at the input end and is conveyed to the output end wherein the wet material is processed to reduce moisture and pathogen content. A blower is provided for providing a forced air stream to direct the flow of the wet material and for directing the flow from the output end of the pre-conditioning unit. A pre-separation cyclone is provided and is operatively positioned for receiving the wet material from the output end of the pre-conditioning unit via the air stream powered by the blower, wherein the wet material is processed under the influence of cyclonic forces that further reduce the moisture content, pathogen content, and reduce the particle size of the wet material.
    Type: Grant
    Filed: May 5, 2003
    Date of Patent: September 14, 2004
    Assignee: Global Resource Recovery Organization, Inc.
    Inventor: Bud Sawyer
  • Patent number: 6790360
    Abstract: A filtering element has ultrafiltration or microfiltration hollow fiber membranes extending horizontally between a pair of opposed horizontally spaced, vertically extending headers. Side plates extending between the pair of vertically extending headers define a vertical flow channel through the element. Modules are created by placing the elements in place without obstructing the vertical flow channels. Each element may be released from the frame, however, and removed by sliding it in a direction substantially normal to its headers without disassembling the remainder of the module. The elements have associated releasable water tight fittings between the elements and a permeate collector, the releasable water tight fittings being releasable by removing an element from the frame. An aerator below the module has a plurality of air holes located to provide a line of air holes below each element or below a side plate between each pair of elements.
    Type: Grant
    Filed: July 17, 2001
    Date of Patent: September 14, 2004
    Assignee: Zenon Environmental Inc.
    Inventors: Steven Pedersen, Pierre Cote
  • Patent number: 6790368
    Abstract: A method and system for the recuperation of the content of septic tank where the supernatant is returned to the septic tank after the recuperation of the sludge and of the scum is described herein. According to the method of the present invention, a major portion of the supernatant is advantageously recuperated from the top of the septic tank to the bottom thereof, and stored in a first reservoir of the system. The sludge, the remainder of the supernatant and the scum are then recuperated and stored in a second reservoir. The supernatant is filtered, either upon its recuperation or before its return to the septic tank. Finally, the filtered supernatant is returned to the septic tank.
    Type: Grant
    Filed: February 6, 2002
    Date of Patent: September 14, 2004
    Assignee: Groupe SNS (Service de nettoyage sanitaire) Inc.
    Inventors: Tony Vachon, Erick Vachon
  • Patent number: 6790345
    Abstract: An underwater filtration operator which can be suspended in a river, lake, pond or other water body to filter water from the water body. The underwater filtration operator may be electrically charged to discharge impurities in the water body and increase filtering efficiency and the operator includes a housing having a selected configuration and divided into one or more filtration units, each of which includes a filter medium for filtering water from the water body. A pump is provided in the housing for receiving the filtered water from the filtration units and pumping the filtered water to a collection tank or dispenser or directly to an end user or to a reverse-osmosis water filtration unit for further filtration.
    Type: Grant
    Filed: July 12, 2002
    Date of Patent: September 14, 2004
    Inventor: Ronney L. Broussard
  • Publication number: 20040173531
    Abstract: A fluid separation and delivery apparatus and method are provided for filtering a fluid from a source and delivering a filtrate derived therefrom to a first destination, and delivering a decantate derived therefrom to a second destination. The fluid separation and delivery apparatus for the method comprises a filter device having an inlet port for connecting to a fluid source, a first outlet port for directing filtrate to a first destination, and a second outlet port for directing decantate to a second destination; an inlet pump connected between the inlet port of the filter device and the fluid source for pumping fluid at a flow rate of Qin into the filter device; and an outlet pump connected between the second outlet port of the filter device and the second destination for pumping fluid at a flow rate of Qout out of the filter device to the second destination.
    Type: Application
    Filed: March 3, 2003
    Publication date: September 9, 2004
    Inventor: John M. Hammond
  • Publication number: 20040173517
    Abstract: A water filtration and pumping apparatus typically for use with swimming pools includes a pump casing having mounted therein an electric motor driving an impeller within an impeller housing. The impeller housing has a water inlet. A filter casing mounted directly atop of the pump casing has a water outlet. The filter casing is attached to the pump casing via a number of support legs extending between the two casings. One of the support legs provides a water flow passage between the impeller housing and the filter casing via which water from the water inlet pumped by the impeller passes en route to the filter casing for filtration and dispensation via the water outlet.
    Type: Application
    Filed: March 3, 2003
    Publication date: September 9, 2004
    Inventor: Kuang Cheung Yuan
  • Publication number: 20040168992
    Abstract: A water recycling solution for gray water is provided, which may include upper and lower water tanks placed at high and low points, respectively, of for example a building or residence. Piping and valves (which may be low pressure) may be incorporated to enable efficient low-pressure water flow throughout the system. Mechanical filters and/or traps, colorants and anti-bacterial chemicals etc. may be utilized to, for example, prevent clogging and reduce contaminants within the gray water utilized.
    Type: Application
    Filed: December 15, 2003
    Publication date: September 2, 2004
    Inventor: Ori Ben-Amotz
  • Patent number: 6783687
    Abstract: A method and apparatus for separating ions from a stream of fluid containing ions. A magnetic field and an electrostatic field are established across a processing zone through which the fluid stream flows so that the flow vector of the fluid stream, the flux lines of the magnetic field, and the vector of the electrostatic field are mutually orthogonal. The resulting high and low ion effluents may be further processed. No thermal input is required. No vacuum, reverse osmosis or reduced pressure distillation is involved. Large volumes of fluid may be processed at relatively low cost. The disclosed method and apparatus is suitable for desalinating seawater, or for removing arsenic or other contaminants from ground water, to produce potable water. Additionally, the invention permits the recovery of valuable constituents from ground or sea water; precious metals may be recovered from sea water and gypsum may be collected from ground water.
    Type: Grant
    Filed: October 11, 2002
    Date of Patent: August 31, 2004
    Inventor: Gordon L. Richard