Vacuumized Filtrate Receiver Patents (Class 210/406)
  • Patent number: 8158009
    Abstract: A flow diverter, vacuum control and tilting of the liquid filtering system are used alternatively or in conjunction to reduce foam production in a filtered liquid sample. A liquid filtering system includes an upper sample reservoir, a filter and a lower storage bottle. A vacuum is applied below the sample filter to draw sample liquid through the sample filter into the storage bottle. A flow diverter may be used to direct flow of the filtered liquid sample onto a sidewall of the storage bottle or guide flow to a bottom of the storage bottle. The vacuum may be regulated to reduce foaming. The liquid filtering system may be tilted to direct fluid to the sidewall of the lower storage bottle and reduce foaming.
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: April 17, 2012
    Assignee: Roush Life Sciences, LLC
    Inventors: Jeffrey F. Kane, Thomas Taylor, Peter Zuk, Jr., Sean Landis Phillips
  • Patent number: 8157104
    Abstract: A portable fixture for supporting a vacuum filtration device includes a cradle portion and a clamping portion. The cradle portion supports the vacuum filtration device. The clamping portion removeably attaches the portable fixture to a support in order to secure and support the filtration device above a workspace. The portable fixture may also provide a vacuum to the filtration device. To that end, the portable fixture may have a vacuum inlet port which may be connected to a vacuum source and a vacuum outlet port that is fluidly connected to the vacuum inlet port.
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: April 17, 2012
    Assignee: Roush Life Sciences, LLC
    Inventors: Jeffrey F. Kane, Thomas Taylor, Vito Lore, Sean Landis Phillips
  • Patent number: 8153003
    Abstract: The invention concerns a belt filter apparatus including a first belt filter section on which a mixture of fine material and a liquid can be placed hydraulically to create partially dry fine material and a second belt filter section on which the partially dry fine material can be placed in order to undergo a second drying cycle. The belt filter apparatus also includes an arrangement for mechanically placing the partially dry fine material from the first belt filter section onto the second belt filter section as well as a liquid collection arrangement for providing fluid communication between the first and second belt filter sections and a vacuum for drying the fine material. The belt filter apparatus includes an agitator formation for increasing the permeability of the fine material to enhance the ability of the liquid to be released from the fine material and be collected by the liquid collection arrangement.
    Type: Grant
    Filed: July 22, 2010
    Date of Patent: April 10, 2012
    Assignee: Cabanga Innovations (pty) Ltd
    Inventor: Kenneth Carl van Rooyen
  • Patent number: 8153001
    Abstract: A liquid vacuuming and filtering device may include a container having an interior sealed from the ambient, a vacuum pump in communication with the interior, a two-way valve connected to the container interior, a flexible hose connected to the valve, a filter positioned within the container interior and connected to the valve and a standpipe positioned within the interior and connected to the valve. The vacuum pump may be adjusted to a filling configuration in which the pump evacuates the container interior to a pressure below ambient, which causes fluid to be drawn through the hose, valve and through the filter, which may collect particulates that contaminate the fluid. Filtered fluid then collects within the container.
    Type: Grant
    Filed: September 15, 2009
    Date of Patent: April 10, 2012
    Assignee: Exair Corporation
    Inventor: Bryan Peters
  • Patent number: 8151997
    Abstract: A horizontal belt filter incorporates a filter web, a belt carrying the web in a substantially horizontal plane, at least one fluid removal member disposed above the web, at least one fluid guide disposed at an end of the fluid removal member and adjacent the web and the belt for receiving liquid runoff channeled to the guide by the fluid removal member, and a rake member disposed above the web on a downstream side of the fluid removal member. The fluid removal member may include at least two linear or straight bars each disposed at an acute angle relative to a respective edge of the filter web, the linear bars being connected to one another to form a V-shaped composite bar having an apex at an upstream side of the direction of belt travel.
    Type: Grant
    Filed: November 30, 2010
    Date of Patent: April 10, 2012
    Assignee: Flsmidth A/S
    Inventor: Robert Marsh
  • Patent number: 8137568
    Abstract: Prior art washer designs have segmented radial ducts feeding the filter valve which collect the filtrate emerging from the longitudinal ducts. Because these ducts are radial, the volume at the periphery is much greater than at the valve entry which creates undesirable conditions such as a large volume where air can escape from the filtrate forming a pocket which will reduce the effectiveness of the vacuum and promote non-uniformity in filtrate velocity. The present invention incorporates a baffle in the radial duct which reduces the volume at the periphery and maintains a uniform cross-sectional area for the filtrate to reach the valve. This maintains a constant filtrate velocity and prevents the possibility of the formation of an air pocket.
    Type: Grant
    Filed: September 26, 2005
    Date of Patent: March 20, 2012
    Assignee: Andritz Ltd.
    Inventors: Paul Norman Rouillard, Jean Paul Haramboure, John Edward Leddy
  • Patent number: 8119399
    Abstract: A method for determining when sufficient cells of a biological specimen have been collected by a filter is based on measuring an air flow rate between a filter and a vacuum source. The air flow rate can be measured by a mass air flow sensor. The air flow rate dropping below a threshold, such as a certain percentage of an initial or baseline flow rate, indicates that sufficient cells have been collected to provide sufficient filter coverage.
    Type: Grant
    Filed: December 13, 2006
    Date of Patent: February 21, 2012
    Assignee: Cytyc Corporation
    Inventors: Eric V. Duhamel, Tuan Ha
  • Patent number: 8088291
    Abstract: A method of collecting medical waste in a waste collection unit using a disposable manifold and filter assembly. The disposable manifold and filter assembly includes a manifold housing with a plurality of inlets, a neck extending from the manifold housing to define an outlet, and a filter basket disposed in the manifold housing. The method includes inserting the neck into the waste collection unit to direct the medical waste passing through the disposable manifold and filter assembly into the waste collection unit. Tubes are connected to the inlets of the manifold housing to provide a path for the medical waste to travel from a target site, e.g., a patient, to the manifold housing. A vacuum is drawn in the waste collection unit to pull the medical waste through the tubes and into the disposable manifold and filter assembly where the medical waste is processed/filtered in a plurality of stages.
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: January 3, 2012
    Assignee: Stryker Corporation
    Inventors: David Hershberger, Richard F. Huyser, Stephen P Isham, Bruce MacDonald, Michael Noonan, Karen Staley
  • Patent number: 8029670
    Abstract: A device for treating cooling lubricants and chips of machine tools. The device includes a container for receiving the untreated mixture of cooling lubricant liquid and solids, an endless conveyor installed in the container for carrying off the collected solids from the container, at least one filtration unit disposed in the container for separating the cooling lubricant liquid from the solids, whereby the filtration unit is formed so as to be mobile and can be positioned as an insertion in the container over the lower run of the endless conveyor.
    Type: Grant
    Filed: July 13, 2010
    Date of Patent: October 4, 2011
    Assignee: Deckel Maho Pfronten GmbH
    Inventors: Wolfgang Dietenhauser, Robert Schielke
  • Patent number: 8002994
    Abstract: The present invention relates to a method of treating lime mud slurry being generated in a causticizing process in a pulp mill in a disc filter, in which method the lime mud is fed in the filter, thickened on the filter discs and removed from the filter discs. The lime mud is treated in at least two stages in one and the same disc filter in such a way that the lime mud slurry entering the filter is fed onto only a part of the filter discs, on which lime mud is thickened and removed from the discs, and the removed lime mud is re-slurried in liquid, and the lime mud slurry thus obtained is fed onto a second part of the filter discs, on which lime mud is thickened and removed from the filter and led into a subsequent process stage. The invention also relates to an apparatus.
    Type: Grant
    Filed: November 24, 2005
    Date of Patent: August 23, 2011
    Assignee: Andritz Oy
    Inventors: Holger Engdahl, Jouni Jäntti, Markku Lankinen, Antti Mattelmäki, Simo Suutari, Mika Kottila
  • Patent number: 7971728
    Abstract: A filtration system for collecting bone fragments during surgery performed on a patient includes a cylinder having a rotating disk with circumferential arms extending radially in the cylinder to define pockets. The rotating disk includes a longitudinal hub that carries an outlet connected to a central passageway formed in the disk. A plurality of apertures on the disk permit the liquid to flow into the passageway and through the outlet while the pockets retain the bone fragments. The disk is rotated to align circumferential spaced pockets to align with the inlet and outlet ports. The disks includes bearing surfaces that permit the rotation thereof and the arms are spaced from the cylinder inner surface to allow the flow of fluid in the event the pockets fill and clog the apertures and prevent flow into the outlet passage.
    Type: Grant
    Filed: February 28, 2006
    Date of Patent: July 5, 2011
    Assignee: The Anspach Effort, Inc
    Inventors: Thomas D. Anspach, Stephen M. Bucina
  • Patent number: 7943372
    Abstract: The device for microbiological testing of a sample of liquid includes an envelope and a filter membrane, the envelope including a removable body and a support for the membrane in the wetted state; the support including a sponge and the removable body including a flexible wall adapted to move toward the membrane, when the device is subjected to a reduced pressure and to return to its initial position when the reduced pressure ceases. The assembly includes a device of the above kind and a clamp adapted to grip the device in the manner of a vise. The method includes the step of obtaining such a device, of passing the sample between the inlet aperture and the outlet aperture of the device, of subjecting the device to a reduced pressure, of making the reduced pressure cease, and then of detecting the presence of microorganisms on the membrane of the device.
    Type: Grant
    Filed: May 23, 2007
    Date of Patent: May 17, 2011
    Assignee: Millipore Corporation
    Inventor: Stephane Olivier
  • Publication number: 20110062091
    Abstract: A liquid vacuuming and filtering device may include a container having an interior sealed from the ambient, a vacuum pump in communication with the interior, a two-way valve connected to the container interior, a flexible hose connected to the valve, a filter positioned within the container interior and connected to the valve and a standpipe positioned within the interior and connected to the valve. The vacuum pump may be adjusted to a filling configuration in which the pump evacuates the container interior to a pressure below ambient, which causes fluid to be drawn through the hose, valve and through the filter, which may collect particulates that contaminate the fluid. Filtered fluid then collects within the container.
    Type: Application
    Filed: September 15, 2009
    Publication date: March 17, 2011
    Applicant: EXAIR CORPORATION
    Inventor: Bryan Peters
  • Publication number: 20100320134
    Abstract: A liquid filtering system and methods for filtering are disclosed. One embodiment of the system includes a filtering apparatus having a receiving receptacle coupled with an adapter. The adapter has an adapter port for receiving a vacuum and an interface for coupling with an output receptacle that receives filtered liquid from the filtering apparatus. The adapter is between the receiving receptacle and output receptacle when the output receptacle is coupled with the adapter interface. The system also includes a base having a substantially rigid housing containing an internal vacuum channel terminating at a base vacuum delivery port. The adapter is couplable with the base to connect the adapter port to the base vacuum delivery port.
    Type: Application
    Filed: August 26, 2010
    Publication date: December 23, 2010
    Applicant: Roush Life Sciences, LLC
    Inventor: Peter Zuk, JR.
  • Publication number: 20100307967
    Abstract: The present invention provides a vacuum filter device (10) which includes a filter body (11) having two holders (12, 13) on opposite sides of a filter. Each holder contains a closed container (15, 16) in a fluid-tight, sealed relationship. The filter is retained by a compression sealing element that resiliently applies a sealing pressure to the upper surface of the filter. The sealing element is maintained in place by a compression element formed of a ring that applies a desired compressive force to the sealing element. The compression element is bonded to a portion of the body to hold it, the sealing element and filter in place and under a compression seal. Other aspects of the invention include provisions for forming a port in the compression element that can be aligned with the vent of the device. The invention also can provide for an alignment feature on the compression element that ensures the port is in alignment with the vent of the device.
    Type: Application
    Filed: September 16, 2008
    Publication date: December 9, 2010
    Applicant: Millipore Corporation
    Inventors: Phillip Clark, John Doyle
  • Patent number: 7806274
    Abstract: The present invention is a filter assembly for vacuum filtration formed of a housing having an upper portion and lower portion, a filter separating the upper from the lower portion of the housing, an inlet formed in the upper housing, an outlet and a vacuum port formed in the lower portion, a gasket arranged at a lowermost surface of the lower portion and the upper portion is having a height sufficient to trap any air that might enter and keep it away from the membrane surface. Preferably, it is of a curved shape, preferably in the form of a dome. Optionally, the upper portion of the housing may also contain a vent, particularly a vent controlled by a valve, for the removal of air periodically from the upper portion, especially when a large incursion of air has occurred.
    Type: Grant
    Filed: February 2, 2004
    Date of Patent: October 5, 2010
    Assignee: Millipore Corporation
    Inventors: Chris A. Scott, Matthew John Dunleavy, Louis Bonhomme
  • Patent number: 7798333
    Abstract: A liquid filtering system and methods for filtering are disclosed. One embodiment of the system includes a filtering apparatus having a receiving receptacle coupled with an adapter. The adapter has an adapter port for receiving a vacuum and an interface for coupling with an output receptacle that receives filtered liquid from the filtering apparatus. The adapter is between the receiving receptacle and output receptacle when the output receptacle is coupled with the adapter interface. The system also includes a base having a substantially rigid housing containing an internal vacuum channel terminating at a base vacuum delivery port. The adapter is couplable with the base to connect the adapter port to the base vacuum delivery port.
    Type: Grant
    Filed: September 5, 2006
    Date of Patent: September 21, 2010
    Assignee: Roush Life Sciences, LLC
    Inventor: Peter Zuk, Jr.
  • Patent number: 7795011
    Abstract: A bio sample processing apparatus and method using vacuum chambers in which a bio sample is injected into a first vacuum chamber connected with one end of a bio processor and, after processing, is ejected into a second vacuum chamber connected with the other end of the bio processor. The vacuum chambers and bio processor are connected with each other to form an environment with a pressure lower than atmospheric pressure, and the bio sample moves toward the second vacuum chamber due to the pressure difference created by the injection of the bio sample into the first vacuum chamber.
    Type: Grant
    Filed: July 25, 2005
    Date of Patent: September 14, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Tae-sik Park, Sung-hee Lee, Jung-ho Kang, Young-il Kim, Moon-chul Lee
  • Patent number: 7789246
    Abstract: A biological sample collector is adapted to a collect several biological samples in a plurality of filter wells. A biological sample collector may comprise a manifold plate for mounting a filter plate thereon, the filter plate having a plurality of filter wells therein; a hollow slider for engaging and positioning a tube that slides therethrough; and a slide case within which the hollow slider travels to allow the tube to be aligned with a selected filter well of the plurality of filter wells, wherein when the tube is aligned with the selected filter well, the tube is pushed through the hollow slider and into the selected filter well to sealingly engage the selected filter well and to allow the tube to deposit a biological sample onto a filter in the bottom of the selected filter well. The biological sample collector may be portable.
    Type: Grant
    Filed: February 13, 2007
    Date of Patent: September 7, 2010
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: Gloria A. Murphy
  • Patent number: 7780815
    Abstract: In a rotary drum for condensing pulp from a pulp slurry vat, the drum including radial conduits delivering filtrate from a pulp mat on an outer surface of the drum to at least one filtrate conduit coaxial with a drum rotational axis, a valve segment in the filtrate conduit including: an outer surface juxtaposed against drainage outlets of the radial conduits as the conduits pass through an angular range extending from an upper drum position to an immersed in a vat position, wherein the valve segment does not block the drainage outlets during a majority of the rotation of the drum; at least one inlet aperture on the outer surface aligned with the drainage outlets, said inlet aperture extending at least a majority of a width of the valve segment, and a closed passage extending from the inlet aperture to a gas vent external to the filtrate conduit, wherein the closed passage is offset from and below a centerline of the filtrate conduit.
    Type: Grant
    Filed: June 13, 2007
    Date of Patent: August 24, 2010
    Assignee: Andritz Inc.
    Inventor: Todd S. Grace
  • Patent number: 7753214
    Abstract: A liquid extraction unit for extracting liquid from an aqueous material is described. The unit includes a filter that is configured to allow passage of the liquid and prevent passage of the aqueous material. The unit also includes a first vacuum that is configured to extract air from the extraction unit. The unit further includes a second vacuum that is configured to pull the liquid through the filter. The first vacuum and the second vacuum are located after the filter.
    Type: Grant
    Filed: September 5, 2008
    Date of Patent: July 13, 2010
    Assignee: Concrete Slurry Environmental, Inc.
    Inventor: Charles Davie Tomlinson
  • Patent number: 7749395
    Abstract: An apparatus removes liquid from a liquid and solids mixture. The apparatus may include a bowl-shaped, rigid container having an upper portion, a lower portion, and a sidewall forming a chamber for receiving the liquid and solids mixture. The container includes a plurality of conduits extending radially outwardly along an inner portion of the sidewall. A filter separates the conduits from the liquid solids mixture in the chamber. Means is also provided for reducing pressure in the chamber, which causes at least liquid to be drawn from the mixture through the filter and conduits. Related systems and methods may be follow from use of the apparatus.
    Type: Grant
    Filed: May 31, 2007
    Date of Patent: July 6, 2010
    Assignee: Gryphon Environmental, LLC
    Inventor: William Tid Smith Griffin
  • Patent number: 7744759
    Abstract: A downflow sand filter used for treating wastewater which has degraded in function from its original design is at least in part rejuvenated by flowing air downwardly through the bed during time when flow of wastewater is ceased. The low velocity air flow helps dewater the bed and leads to the removal of accumulated organic material which has clogged the pores of the bed. In accord with different embodiments, air flow is alternated with water flow in particular ways, for instance, so the water flow is sufficient to create ponding or is sufficient to maintain moisture content within the bed.
    Type: Grant
    Filed: July 29, 2009
    Date of Patent: June 29, 2010
    Inventor: David A. Potts
  • Patent number: 7736526
    Abstract: The present disclosure is directed to a filter support having a surface with a plurality of perforations therein. At least one spray bar may be substantially fixed adjacent to the surface of the filter support. A spray bar may include a plurality of nozzles for directing a pressured fluid toward the filter support. The filter support may further include a motor for causing the filter support to move in a cyclical manner while the spray bar directs pressurized fluid toward the filter support.
    Type: Grant
    Filed: October 3, 2008
    Date of Patent: June 15, 2010
    Assignee: Thompson Industrial Services, LLC
    Inventors: Gary Lee Smith, Jimmy Dwayne Jackson
  • Patent number: 7731036
    Abstract: A reversible vacuum filter cartridge for connection to a pair of tubes or other entities to filter a liquid medium placed in one of the tubes or other entities is described. The filter cartridge is comprised of a male coupling and a female coupling. The couplings are interconnected to one another by simply pushing a mating projection of the male coupling into a mating cavity of the female coupling. A connecting port is provided in the male and female coupling and has a conduit communicating with tube connecting ends of each of the couplings which communicate with an open end of a tube connected to each of the couplings. The connecting port is identical in each of the couplings and serves either as vacuum port or an air intake port. A filter disk is retained captive between perforated outer walls of each of the couplings when interconnected together in fluid-tight relationship.
    Type: Grant
    Filed: February 15, 2007
    Date of Patent: June 8, 2010
    Assignee: SCP Science
    Inventors: Arthur Ross, George Feilders
  • Publication number: 20100038303
    Abstract: The disposable polymer-structured filtering kit includes a disposable, polymer-structured filtering funnel with a stem having a distal tip. A flow discharge end is formed at the distal tip. Preferably, a polymer fritted filter disc is positioned in the funnel, providing filtering for liquids passing therethrough. The kit preferably also includes a glass vacuum take-off adapter having a port for connecting to a vacuum source for providing negative pressure. The adapter securely and snuggly receives the funnel and maintains position of the distal tip thereof with the flow discharge end below the port, thus preventing contaminants from entering the adapter. A reusable, glass round bottle flask or a disposable vial receives the adapter and the stem of the funnel. The funnel and fritted disc are formed from disposable materials, thus removing the necessity of cleaning them following use. The adapter is reusable, since no contaminants come in contact therewith during filtering.
    Type: Application
    Filed: August 12, 2009
    Publication date: February 18, 2010
    Inventors: Jianjian Cai, Xiaogao Liu
  • Patent number: 7658839
    Abstract: A device for purifying liquid in a reservoir and including a vacuum chamber (1) having an inflow opening (2) and an outflow opening (3) adapted to communicate with the liquid in the reservoir through a feed conduit (4) and a return conduit (5), respectively. The return conduit (5) is provided with a pump (6) and the vacuum chamber is connected with a vacuum pump (7). The device further includes a filter cartridge (8) provided with a plurality of filter elements, each having a flow side communicating with a central passage (26) and a flow side opening into the periphery of the filter cartridge (8). The filter cartridge (8) is arranged inside the vacuum chamber, the central passage (26) of the filter cartridge communicating with the inflow opening (2) of the vacuum chamber.
    Type: Grant
    Filed: October 22, 2002
    Date of Patent: February 9, 2010
    Assignee: C.C. Jensen A/S
    Inventor: Carl Aage Jensen
  • Patent number: 7651619
    Abstract: A method and an apparatus for separating dry matter from liquid includes an enclosed separation environment capable of being pressure regulated. Within the enclosed separation environment, a suspension is brought into contact with at least one filter so as to accumulate dry matter on the at least one filter. The filter with the dry matter passes through at least one set of rollers such that liquid is removed from the dry matter on the at least one filter to form a substantially dry filter cake. Thereafter, the substantially dry filter cake is removed from the at least one filter. The above steps are performed in the enclosed separation environment either under vacuum or overpressure. The invention may be used in various fields such as the food industry.
    Type: Grant
    Filed: December 23, 2002
    Date of Patent: January 26, 2010
    Inventors: Preben Bøje Hansen, Peter Stubbe, Hanne Birch, Kirsten Grønning Sørensen
  • Publication number: 20100006504
    Abstract: A liquid separation device is provided, and is capable of suppressing the lowering of filtration function due to an increase in flow channel resistance of permeated liquid which results in a separation membrane falling in a groove of a permeated liquid flow channel material along with accompanied breakage of the separation membrane surface. A permeated liquid flow channel material is disposed on the back side of a separation membrane composed of a sheet-like material having a linear groove and a linear crest alternately arrayed on one surface or both surfaces, wherein a groove width of the linear groove in the sheet-like material is 10 to 200 ?m, and a ratio of the groove width of the linear groove to the pitch of the linear groove is 0.45 or more.
    Type: Application
    Filed: March 23, 2007
    Publication date: January 14, 2010
    Applicant: TORAY Industries , Inc.
    Inventors: Yoshifumi Odaka, Toshimasa Katayama, Tsunemitsu Kitagawa
  • Publication number: 20100000933
    Abstract: A vacuum filtration apparatus for detecting microorganisms and particulates in liquid samples. The apparatus includes a base, an absorbent pad, a filter means, a funnel and a lid. The funnel is releasably attached to the base, and may contain an integral flexible seal for releasably sealing the filter means 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 contain a means to keep the filter means wrinkle free in both the dry and wet states.
    Type: Application
    Filed: June 15, 2009
    Publication date: January 7, 2010
    Applicant: ROUSH LIFE SCIENCES, LLC
    Inventor: Peter Zuk, JR.
  • Patent number: 7614503
    Abstract: The present invention relates to a device for separating liquid and solid material from a mixture which includes a filter cloth for allowing through the liquid and holding back the solid material; a carrier belt for supporting the filter cloth with the mixture thereon, wherein the carrier belt is provided with one or more openings close to at least one of the side edges or at least eccentrically thereof; a support construction for supporting the carrier belt movable relative thereto; and a suction box arranged under the support construction and/or on the side of the carrier belt and connected to the optional openings in the carrier belt for extracting liquid from the mixture.
    Type: Grant
    Filed: August 29, 2007
    Date of Patent: November 10, 2009
    Assignee: Pannevis B.V.
    Inventor: Jan Marinus Marchal
  • Patent number: 7588732
    Abstract: The present invention includes a harvesting and irrigation device, a method and a kit for the collection of viable fat cells and/or adipose tissue with decreased handing and improved yield and viability.
    Type: Grant
    Filed: March 25, 2005
    Date of Patent: September 15, 2009
    Assignee: Genesis Biosystems, Inc.
    Inventor: Brian Buss
  • Patent number: 7546925
    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 keep the filter wrinkle free in both the dry and wet states.
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: June 16, 2009
    Assignee: Roush Life Sciences, LLC
    Inventor: Peter Zuk, Jr.
  • Patent number: 7500569
    Abstract: A device for separating plasma from whole blood is provided having an evacuated primary collection chamber capable of fluid communication through a porous filter to an evacuated secondary collection chamber. An agglutinating agent is provided within the primary collection chamber so as to aggregate blood cells within a whole blood sample. The porous filter has a pore size which is small enough to capture the aggregated blood cells therein, yet large enough to permit plasma to transfer therethrough under pressures associated with conventional evacuated blood collection tubes. The primary and secondary collection chambers may be provided in separate containers or tubes, with transfer occurring therebetween through a transfer device including the porous filter therein.
    Type: Grant
    Filed: December 17, 2004
    Date of Patent: March 10, 2009
    Assignee: Becton, Dickinson and Company
    Inventors: Dimitrios Manoussakis, Robert J. Losada
  • Publication number: 20090026126
    Abstract: Liquid filter assemblies including an upper sample reservoir, a sample filter and a lower storage bottle are supported by a vacuum base. The base has a vacuum inlet port and, for connection to the liquid filter assembly, a vacuum outlet port. A vacuum is provided through the base to below the sample filter to draw sample liquid through the sample filter into the storage bottle. The base may include an auxiliary vacuum outlet port for connection with additional devices. The bases may be connected from one to another through auxiliary vacuum outlets and the vacuum inlets to make a chain of liquid filter assemblies supplied from one vacuum source. Alternatively, one base may include multiple vacuum outlet ports so that it may support and supply vacuum to a plurality of liquid filter assemblies.
    Type: Application
    Filed: January 31, 2008
    Publication date: January 29, 2009
    Applicant: NYPRO INC.
    Inventors: Thomas Taylor, Jeffrey F. Kane, Vito Lore, Sean Landis Phillips
  • Publication number: 20090026153
    Abstract: A method of removing a filtrate storage bottle from a water bath includes inserting at least two finger underneath a radially protruding lip of a filtrate storage bottle sealing cap and raising the at least two fingers to lift the bottle from the water bath. A side wall portion of the filtrate storage bottle sealing cap is smaller in perimeter than a circle surrounding the radially protruding lip. The cap creates a liquid tight seal with the filtrate storage bottle.
    Type: Application
    Filed: January 31, 2008
    Publication date: January 29, 2009
    Applicant: NYPRO INC.
    Inventors: Jeffrey F. Kane, Thomas Taylor
  • Publication number: 20090026154
    Abstract: A portable fixture for supporting a vacuum filtration device includes a cradle portion and a clamping portion. The cradle portion supports the vacuum filtration device. The clamping portion removeably attaches the portable fixture to a support in order to secure and support the filtration device above a workspace. The portable fixture may also provide a vacuum to the filtration device. To that end, the portable fixture may have a vacuum inlet port which may be connected to a vacuum source and a vacuum outlet port that is fluidly connected to the vacuum inlet port.
    Type: Application
    Filed: January 31, 2008
    Publication date: January 29, 2009
    Applicant: NYPRO INC.
    Inventors: Jeffrey F. Kane, Thomas Taylor
  • Patent number: 7473375
    Abstract: The residual material in a filter-dryer (1) is removed from the screen (15) by careful scraping with a lasso like belt (20). The scraped material will be removed through a side opening (16). To gain this remaining material adds to the yield of the process by reducing loss of product, and does not endanger personnel unnecessarily and therefore save process costs.
    Type: Grant
    Filed: May 11, 2005
    Date of Patent: January 6, 2009
    Assignee: Rosenmund VTA AG
    Inventor: Robert Gerard Stoerzer
  • Patent number: 7468163
    Abstract: The invention relates to a mechanical support for a drainage device of a filter unit for microbiological testing of liquid substances. Said filter unit is provided with a membrane and adapted to be mounted on said mechanical support so that said membrane faces a reception surface of said mechanical support. The mechanical support comprises: a passage one end of which discharges externally of said reception surface and the other end of which discharges internally said reception surface; and selectively operable means for closing said passage, movable between a first position in which they close said passage and a second position in which they open said passage.
    Type: Grant
    Filed: October 24, 2003
    Date of Patent: December 23, 2008
    Assignee: Millipore Corporation
    Inventor: Christian Clauss
  • Publication number: 20080290040
    Abstract: A flow diverter, vacuum control and tilting of the liquid filtering system are used alternatively or in conjunction to reduce foam production in a filtered liquid sample. A liquid filtering system includes an upper sample reservoir, a filter and a lower storage bottle. A vacuum is applied below the sample filter to draw sample liquid through the sample filter into the storage bottle. A flow diverter may be used to direct flow of the filtered liquid sample onto a sidewall of the storage bottle or guide flow to a bottom of the storage bottle. The vacuum may be regulated to reduce foaming. The liquid filtering system may be tilted to direct fluid to the sidewall of the lower storage bottle and reduce foaming.
    Type: Application
    Filed: January 31, 2008
    Publication date: November 27, 2008
    Applicant: NYPRO INC.
    Inventors: Jeffrey F. Kane, Thomas Taylor, Peter Zuk, JR., Sean Landis Phillips
  • Patent number: 7384548
    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: December 7, 2004
    Date of Patent: June 10, 2008
    Inventors: Richard J. Terrien, David T. Walker
  • Patent number: 7374929
    Abstract: This concerns a device whose filtering membrane (4) is gripped annularly at the periphery between an annular transverse wall (32) forming part of a drainage body and an axially oriented cylindrical wall (9) of an intake body, which lateral wall has an elastomer seal (13) which forms the edge thereof and by means of which this wall comes into contact with the membrane (4), this device being provided with a second seal (55) which has an arched profile, the external annular end (61) of which bears against said annular transverse wall (32) radially beyond said membrane (4), and the internal end (57) of which is connected to said seal (13) on the lateral wall (9) of said reservoir (5), hereinafter referred to as the first seal.
    Type: Grant
    Filed: October 9, 2002
    Date of Patent: May 20, 2008
    Assignee: Millipore Corporation
    Inventors: Christian Schann, Gérard Muller, Frédéric Reynes, Christian Clauss
  • Patent number: 7354758
    Abstract: Device and method for sterility testing, in particular of pharmaceutical products, includes a closed sterility test system having at least two test containers, in each case having an integrated test filter, an outlet connecting branch arranged below the test filter and an inlet connecting branch which is arranged above the test filter and can be connected with a tube connection via a sampling device to a sample container. The tube connection of the test container in each case has a distributing component via which a fixed tube connection to an associated nutrient medium container is formed and can be used to feed an associated nutrient medium to the test container.
    Type: Grant
    Filed: August 12, 2004
    Date of Patent: April 8, 2008
    Assignee: Sartorius Stedim Biotech GmbH
    Inventors: Oliver Guenec, Eric Jallerat
  • Patent number: 7214314
    Abstract: A portable cleaning device for removing sediment from an enclosure retaining water. The cleaning device includes a pump, a housing, and a receptacle. The pump creates a fluid flow through the cleaning device. The cleaning device draws water from the enclosure into the housing through a tube. The housing includes an inlet passage and an outlet passage defined within the housing. The fluid flow path through the cleaning device is at least partially defined by the inlet passage, the receptacle and the outlet passage. The inlet passage receives the fluid flow from the tube and empties the fluid flow into the receptacle. The outlet passage receives fluid flow out of the receptacle. A filter is connected to the outlet passage and prevents relatively large particles in the water from entering the outlet passage. The fluid flow proceeds from the outlet passage toward the pump through an outlet tube.
    Type: Grant
    Filed: February 24, 2003
    Date of Patent: May 8, 2007
    Inventor: Lance A. Reyniers
  • Patent number: 7175757
    Abstract: In a treatment liquid supply system that supplies treatment liquid used for coating industrial objects for film formation including a semiconductor substrate, a display substrate, a glass and the like, a nozzle connected to a treatment liquid tank vacuum-sucks and injects the treatment liquid from the treatment liquid tank due to a negative pressure occurring in the nozzle, wherein supply control of a small flow amount of the treatment liquid to the nozzle can be performed due to a difference pressure between pressure in the treatment liquid tank and the negative pressure occurring in the nozzle.
    Type: Grant
    Filed: September 25, 2003
    Date of Patent: February 13, 2007
    Assignee: Fujimori Technical Laboratory Inc.
    Inventors: Yuki Hamada, Kay Fujimori
  • Patent number: 7160473
    Abstract: The present invention provides a method for removing an oil contaminant from the 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.
    Type: Grant
    Filed: September 3, 2004
    Date of Patent: January 9, 2007
    Assignee: Universal Separators, Inc.
    Inventors: Richard J. Terrien, David T. Walker
  • Patent number: 7112281
    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: November 29, 2005
    Date of Patent: September 26, 2006
    Assignee: Millipore Corporation
    Inventors: Jeffrey S. Busnach, Brian Foley, Phillip Clark, Joseph E. Gabriels
  • Patent number: 7089681
    Abstract: The present invention relates to a method and apparatus for filtering and drying a product. In a preferred embodiment, the apparatus comprises a container having a plurality of porous walls and a plurality of solid walls that divide the container into a plurality of product chambers, a plurality of vacuum chambers, and, preferably, a plurality of heat transfer chambers. Each product chamber shares at least one porous wall with an adjacent vacuum chamber. Each product chamber preferably shares at least one solid wall with an adjacent heat transfer chamber. According to the method of the present invention, a product is introduced into the product chambers, where the product is held while a substance is filtered from the product through the porous walls and the product is dried by reducing the pressure in the vacuum chambers and the product chambers.
    Type: Grant
    Filed: November 26, 2002
    Date of Patent: August 15, 2006
    Assignee: Alkermes Controlled Therapeutics, Inc.
    Inventors: Paul F. Herbert, Douglas M. Bissonnette, Gregory C. Troiano
  • Patent number: 7083729
    Abstract: A device for cleaning a fluid comprises at least one set of a first membrane cloth and a second membrane cloth, each being permeable to water over substantially their entire length. The membrane cloths are held taut, substantially parallel to one another in a frame delimiting between them a movement path for fluid. The cloths are displaceable with respect to one another between a first position, in which the mutually facing surfaces substantially touch one another, and a second position, in which the cloths lie at a distance from one another and the width of the movement path for the fluid is greater than in the first position. At least one of the cloths, on the side which faces towards the adjacent cloth is provided with grooves or webs for the purpose of forming channels between the cloths in the longitudinal direction of the cloths, in the first position.
    Type: Grant
    Filed: November 23, 2001
    Date of Patent: August 1, 2006
    Assignee: Paques B.V.
    Inventor: Sjoerd Hubertus Josef Vellinga
  • Patent number: 7059480
    Abstract: This invention provides a continuous blood filtration apparatus capable of filtering a plurality of blood samples continuous by using blood filter units to prepare plasma or serum samples in a short period, which comprises, a conveyor conveying a plurality of blood reservoirs each of which contains a blood sample and in which a suction nozzle of a blood filter unit has been put, a manifold connected to a suction line, couples of a valve and a connector for connecting the manifold to the blood filter unit provided on the end of each branch of the manifold, and a mechanism of moving the blood reservoirs in vertical direction.
    Type: Grant
    Filed: September 30, 2003
    Date of Patent: June 13, 2006
    Assignee: Fuji Photo Film Co., Inc.
    Inventors: Osamu Seshimoto, Kenichiro Yazawa