Utilizing Particular Fluid Patents (Class 137/807)
  • Patent number: 9494498
    Abstract: The invention provides a method of circulating magnetically responsive beads within a droplet in a droplet actuator. The invention also provides methods for splitting droplets. The invention, in one embodiment, makes use of a droplet actuator with top and bottom substrates, a plurality of magnetic fields respectively present proximate the top and bottom substrates, wherein at least one of the magnet fields is selectively alterable, and a plurality of droplet operations electrodes positioned along at least one of the top and bottom surfaces. A droplet is positioned between the top and bottom surfaces and at least one of the magnetic fields is selectively altered.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: November 15, 2016
    Assignee: Advanced Liquid Logic, Inc.
    Inventors: Vamsee K. Pamula, Ramakrishna Sista, Vijay Srinivasan, Michael G. Pollack, Allen Eckhardt
  • Patent number: 9463728
    Abstract: A seat for a vehicle may include a unit foam that is formed so as to have a magnetic property due to a magneto-rheological fluid, and magnetic bodies that are provided on both sides of the unit foam, respectively, to form a magnetic field passing through the unit foam.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: October 11, 2016
    Assignees: Hyundai Motor Company, Industry-University Cooperation Foundation Sogang University
    Inventors: In Ju Lee, Sung Rae Kim, Hyung Joo Kim, Do Young Jeon, Sang Yoon Han, Kook Jin Jang
  • Patent number: 9091323
    Abstract: An orifice plate apparatus for an engine mount filled with magnetorheological (MR) fluid may include a coil assembly having a coil wound thereon and being annular in shape, a core assembly unit housing the coil assembly, formed in a discoid shape, and defining a flow path of which an upper passage may be disposed in a top surface of the core assembly unit, and a lower passage may be disposed in a bottom surface of the core assembly unit, wherein the flow path may be formed annularly along a perimeter of the coil assembly, and a flow path separator installed between the upper passage and the lower passage, such that only a unidirectional circulation may be enabled for the MR fluid passing through the flow path.
    Type: Grant
    Filed: July 12, 2012
    Date of Patent: July 28, 2015
    Assignee: HYUNDAI MOTOR COMPANY
    Inventor: Jang-Ho Kim
  • Patent number: 9075354
    Abstract: A belt fuser assembly which dispenses lubricant oil or other depleted lubricant component to the inner surface of the fuser belt. The belt fuser assembly may include a lubricant dispenser positioned to be heated by the heating element of the fuser assembly for dispensing a lubricant oil to the inner surface of the fuser belt. A controller coupled to the heating element activates the heating element to generate heat at a fusing temperature during a fusing operation and at at least one second temperature greater than the fusing temperature during a lubricant dispensing operation so as to cause lubricant to dispense from the lubricant dispenser.
    Type: Grant
    Filed: February 26, 2013
    Date of Patent: July 7, 2015
    Assignee: Lexmark International, Inc.
    Inventors: Donald Eugene Proffitt, Fangsheng Wu
  • Patent number: 9069297
    Abstract: A belt fuser assembly which dispenses lubricant oil or other depleted lubricant component to the inner surface of the fuser belt. The belt fuser assembly may include a lubricant dispenser positioned to be heated by the heating element of the fuser assembly for dispensing a lubricant oil to the inner surface of the fuser belt. The lubricant dispenser may include a reservoir containing the lubricant oil and an exit port for delivering the lubricant oil from the reservoir to the inner surface of the fuser belt upon the reservoir being heated by the heating element at a temperature above the fusing temperature of the belt fuser assembly.
    Type: Grant
    Filed: February 26, 2013
    Date of Patent: June 30, 2015
    Assignee: Lexmark International, Inc.
    Inventors: Donald Eugene Proffitt, Fangsheng Wu
  • Patent number: 8985149
    Abstract: A valve device is formed with a through-channel and a field generating device. A fluid which can be influenced by a field is provided in the through-channel and the field generating device is configured to act on the field-influenced fluid in the through-channel by way of a field. At least one adjustment device is provided with which the field that is active in the through-channel can be adjusted. A portion of the cross-sectional area of the through-channel can be adjusted, the portion being exposed to a field of a specific intensity so that the through-channel can also only partly be exposed to a field of a specific intensity. Thus, the through-channel, as seen in the direction of the flow, can be divided into regions of different flow resistance, whereby characteristic curves, which were previously attained only with difficulty, are easily obtained when using the valve device in a damper, for example.
    Type: Grant
    Filed: July 20, 2010
    Date of Patent: March 24, 2015
    Assignee: Inventus Engineering GmbH
    Inventors: Stefan Battlogg, Juergen Poesel, Gernot Elsensohn
  • Patent number: 8985288
    Abstract: A valve for a magnetorheological fluid is formed with a duct through which the magnetorheological fluid can flow and which can be exposed to a variable magnetic field such that the flow resistance of the duct can be set using the magnetic field in the duct. The magnetic field can be lastingly generated using a magnet device that is made at least in part of magnetically hard material. The magnetization of the magnet device can be lastingly modified by a magnetic pulse of a magnetic field generation device in order to lastingly change the magnetic field in the duct and thus the flow resistance of the duct. A valve of the invention requires energy only to change settings while a specific setting can be lastingly maintained without supplying energy.
    Type: Grant
    Filed: December 23, 2010
    Date of Patent: March 24, 2015
    Assignee: Inventus Engineering GmbH
    Inventors: Stefan Battlogg, Juergen Poesel, Gernot Elsensohn
  • Patent number: 8973613
    Abstract: An ER fluid valve includes a housing and a plurality of parallel flow passages through the housing each defined by spaced electrodes at least one of which is controllable independently of other flow passages electrodes. A controller is configured to selectively establish electrical fields for all of the independently controllable electrodes to close all of the flow passages to ER fluid flowing through the housing. By removing the fields from all of the independently controllable electrodes, all the flow passages are open to the ER fluid flowing through the housing. By establishing fields for select independently controllable electrodes to close their associated flow passages and by leaving other flow passages open, restricted flow of the ER fluid through the housing is accomplished to vary the flow rate through the housing.
    Type: Grant
    Filed: April 27, 2011
    Date of Patent: March 10, 2015
    Assignee: Google Inc.
    Inventors: Michael P. Murphy, Robert Playter
  • Publication number: 20150041012
    Abstract: Provided is a particle control device for controlling fine particles. The particle control device includes: a base with a predetermined area and including an insulator; a first electrode and a second electrode disposed on the base such that they are separated from each other by a predetermined distance; and a fluid flow path disposed on the base so as to pass between the first electrode and the second electrode and to allow a solution to flow. The first electrode includes a plurality of branch electrodes with fine widths, each branch electrode having one end that is adjacent to the second electrode, with the fluid flow path interposed between the branch electrode and the second electrode.
    Type: Application
    Filed: May 16, 2014
    Publication date: February 12, 2015
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Hyun Joon SHIN, Jin Sik KIM
  • Publication number: 20150027574
    Abstract: Disclosed is a valve for field-sensitive liquids having a valve channel and at least one coupling element for coupling a control field into the valve channel. The valve has a control body which can be moved counter to the force of a restoring element in order to change a flow cross section and can be moved by way of the action of the field-sensitive liquid. A hydraulic system comprising the valve is also disclosed.
    Type: Application
    Filed: July 28, 2014
    Publication date: January 29, 2015
    Inventors: Rainer Bruns, Stephan Ulrich, Konstantin Krivenkov, Holger Freyer, Jan Isermann
  • Publication number: 20150028223
    Abstract: The invention relates to an arrangement for transporting radicals. The arrangement includes a plasma generator and a guiding body. The plasma generator includes a chamber (2) in which a plasma may be formed. The chamber has an inlet (5) for receiving an input gas, and one or more outlets (6) for removal of at least one of the plasma and radicals created therein. The guiding body is hollow and is arranged for guiding radicals formed in the plasma towards an area or volume at which contaminant deposition is to be removed. The chamber inlet is coupled to a pressure device (40) for providing a pulsed pressure into the chamber so as to create a flow in the guiding body.
    Type: Application
    Filed: March 20, 2013
    Publication date: January 29, 2015
    Inventors: Pieter Kruit, Marc Smits
  • Publication number: 20140360587
    Abstract: A device for reducing friction of a viscous fluid flow in a conduit includes a body (10,110) positionable to define at least a segment of a flow path for the viscous fluid in or contiguous with the conduit, a cavity (40,140) in the body for retaining lubricating fluid, and at least one port (42,142) in the body for delivering lubricating fluid to the cavity. A fluid outlet arrangement (48,148) from the cavity delivers lubricating fluid to the flow path to form a downstream lubricating film about viscous fluid flowing therein. The fluid outlet arrangement comprises a substantially continuous opening or ring of close spaced openings about the flow path. The cavity comprises an array of passages in the body that includes a plurality of elongate passages (55,155) that extend about the flow path effective collectively to reduce the pressure variation and therefore velocity variation of the delivered lubricating fluid along the outlet arrangement. A corresponding method is also disclosed.
    Type: Application
    Filed: February 7, 2013
    Publication date: December 11, 2014
    Inventors: Jie Wu, Lachlan Graham, Gregory Mark Short, Dean William Harris
  • Patent number: 8844570
    Abstract: Methods and devices for using one or more fluidic channels for generating binary states are described. In particular, the present teachings relate to incorporating such fluidic channels into devices that use the generated binary states in various applications.
    Type: Grant
    Filed: February 1, 2011
    Date of Patent: September 30, 2014
    Assignee: California Institute of Technology
    Inventor: Casey G. Glick
  • Patent number: 8771612
    Abstract: The present invention provides a photoresponsive gas-generating material that is to be used in a micropump of a microfluid device having fine channels formed therein, and is capable of effectively generating gases for transporting a microfluid in response to light irradiation and transporting the microfluid at an improved transport efficiency. The present invention also provides a micropump incorporating the photoresponsive gas-generating material. A photoresponsive gas-generating material 13 is to be used in a micropump having fine channels formed in a substrate, and comprises a photo-sensitive acid-generating agent and an acid-sensitive gas-generating agent, and a micropump 10 has the photoresponsive gas-generating material 13 housed therein.
    Type: Grant
    Filed: March 11, 2009
    Date of Patent: July 8, 2014
    Assignee: Sekisui Chemical Co., Ltd.
    Inventors: Masateru Fukuoka, Kazuki Yamamoto, Yoshinori Akagi, Hiroji Fukui
  • Patent number: 8763623
    Abstract: Systems and methods related to handling solids in microfluidic systems are generally described. Many of the systems and methods described herein address the need to inhibit the formation of blockages in microfluidic channels.
    Type: Grant
    Filed: November 5, 2010
    Date of Patent: July 1, 2014
    Assignee: Massachusetts Institute of Technology
    Inventors: Ryan L. Hartman, John R. Naber, Nikolay Zaborenko, Jonathan P. McMullen, Klavs F. Jensen
  • Patent number: 8656950
    Abstract: A method of producing treated liquid hydrocarbons. The method begins by pressurizing a latex in a pressure vessel. This is followed by flowing the latex from the pressure vessel into a pipeline containing liquid hydrocarbons to produce treated liquid hydrocarbons. In this embodiment the latex comprises a drag reducing polymer.
    Type: Grant
    Filed: August 12, 2011
    Date of Patent: February 25, 2014
    Assignee: Phillips 66 Company
    Inventor: Timothy L. Burden
  • Patent number: 8616236
    Abstract: A method begins by obtaining a slipstream of a liquid. The slipstream of liquid is then mixed upstream of an injection pump with a latex comprising a drag reducing polymer to produce a drag reducing mixture. The drag reducing mixture is then injected into a liquid hydrocarbon to produce a treated liquid hydrocarbon.
    Type: Grant
    Filed: August 12, 2011
    Date of Patent: December 31, 2013
    Assignee: Phillips 66 Company
    Inventor: Timothy L. Burden
  • Publication number: 20130340419
    Abstract: An air handling system comprising an air guide in the form of a convergent divergent shroud and/or diffuser defining a path along which air can flow, such as to generate one or more regions of reduced pressure and/or increased mass flow rate of air within the guide in response to the passage of air through the guide, and a manifold extending from the guide and having an inlet and an exhaust, the exhaust being in fluid communication with the one or more regions of reduced pressure and/or increased mass flow rate and the inlet being in fluid communication with an interior of an air handling unit such as a condenser or air conditioning unit.
    Type: Application
    Filed: March 27, 2013
    Publication date: December 26, 2013
    Applicant: c/o NEW WORLD ENERGY ENTERPRISES LTD
    Inventors: James SMYTH, Peter SMYTH, David SMYTH, Gerard SMYTH, Andrew SMYTH
  • Patent number: 8584692
    Abstract: Disclosed embodiments include electromagnetic flow regulators for regulating flow of an electrically conductive fluid, systems for regulating flow of an electrically conductive fluid, methods of regulating flow of an electrically conductive fluid, nuclear fission reactors, systems for regulating flow of an electrically conductive reactor coolant, and methods of regulating flow of an electrically conductive reactor coolant in a nuclear fission reactor.
    Type: Grant
    Filed: December 28, 2010
    Date of Patent: November 19, 2013
    Assignee: The Invention Science Fund I, LLC
    Inventors: Roderick A. Hyde, Muriel Y. Ishikawa, Jon D. McWhirter, Ashok Odedra, Joshua C. Walter, Kevan D. Weaver, Lowell L. Wood, Jr.
  • Publication number: 20130186473
    Abstract: A magnetorheological fluid-based device and method may include the use of magnetorheological (MR) fluid, a primary magnetic field to control the viscosity of the fluid, and a secondary magnetic field to reduce clumping of ferromagnetic particles.
    Type: Application
    Filed: January 24, 2012
    Publication date: July 25, 2013
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Nilesh D. Mankame, Alan L. Browne, John C. Ulicny
  • Publication number: 20130174930
    Abstract: The present invention describes methods and apparatus for generating a controlled amount of Hydroxy Gas “HHO Gas” and supplying the HHO Gas upon demand to a combustion engine, in an effective manner that is conducive to increasing the efficiency of combustion engine and significantly reducing the amount harmful gas emitted to the environment. The efficiency and constant generation of controlled amounts of HHO Gas capabilities due to the inclusion of an electrolyte solution and concentric coil designs.
    Type: Application
    Filed: July 14, 2012
    Publication date: July 11, 2013
    Inventors: Roberto Lara Arroyo, Luis Gutierrez Murguia
  • Patent number: 8453330
    Abstract: Embodiments include electromagnetic flow regulators for regulating flow of an electrically conductive fluid, systems for regulating flow of an electrically conductive fluid, methods of regulating flow of an electrically conductive fluid, nuclear fission reactors, systems for regulating flow of an electrically conductive reactor coolant, methods of regulating flow of an electrically conductive reactor coolant in a nuclear fission reactor, and methods of fabricating an electromagnetic flow regulator for regulating flow of an electrically conductive fluid.
    Type: Grant
    Filed: December 28, 2010
    Date of Patent: June 4, 2013
    Assignee: The Invention Science Fund I
    Inventors: Roderick A. Hyde, Muriel Y. Ishikawa, Jon D. McWhirter, Ashok Odedra, Joshua C. Walter, Kevan D. Weaver, Lowell L. Wood, Jr.
  • Patent number: 8430129
    Abstract: Disclosed embodiments include electromagnetic flow regulators for regulating flow of an electrically conductive fluid, systems for regulating flow of an electrically conductive fluid, methods of regulating flow of an electrically conductive fluid, nuclear fission reactors, systems for regulating flow of an electrically conductive reactor coolant, and methods of regulating flow of an electrically conductive reactor coolant in a nuclear fission reactor.
    Type: Grant
    Filed: December 28, 2010
    Date of Patent: April 30, 2013
    Inventors: Roderick A. Hyde, Muriel Y. Ishikawa, Jon D. McWhirter, Ashok Odedra, Joshua C. Walter, Kevan D. Weaver, Lowell L. Wood, Jr.
  • Patent number: 8418819
    Abstract: A movement damping apparatus has a flow path through which a magnetorheological fluid is pressed. A device that generates a variable magnetic field has a core around which a coil is wound as well as pole surfaces in the flow path. The magnetic field acts on the magnetorheological fluid by way of the pole surfaces. The coil is arranged within the flow path along with the core, the axis of the coil extending perpendicular to the direction of flow of the magnetorheological fluid. The flow path has a jacket made of a magnetically conducting material.
    Type: Grant
    Filed: August 21, 2009
    Date of Patent: April 16, 2013
    Assignee: Inventus Engineering GmbH
    Inventors: Stefan Battlogg, Juergen Poesel, Gernot Elsensohn
  • Patent number: 8397760
    Abstract: Disclosed embodiments include electromagnetic flow regulators for regulating flow of an electrically conductive fluid, systems for regulating flow of an electrically conductive fluid, methods of regulating flow of an electrically conductive fluid, nuclear fission reactors, systems for regulating flow of an electrically conductive reactor coolant, and methods of regulating flow of an electrically conductive reactor coolant in a nuclear fission reactor.
    Type: Grant
    Filed: October 6, 2010
    Date of Patent: March 19, 2013
    Inventors: Roderick A. Hyde, Muriel Y. Ishikawa, Jon D. McWhirter, Ashok Odedra, Joshua C. Walter, Kevan D. Weaver, Lowell L. Wood, Jr.
  • Publication number: 20120299905
    Abstract: A fluidic actuator includes a chamber filled with a fluid, an element movable in relation to the chamber and in contact with the fluid, as well as a passage for circulating the fluid between the inside and the outside of the chamber in order to vary the amount of fluid in the chamber, thus causing movement of the movable element. The fluid is magnetorheological and the fluidic actuator includes a magnetic field generator arranged so as to generate, in the passage, a controlled magnetic field.
    Type: Application
    Filed: December 14, 2010
    Publication date: November 29, 2012
    Applicant: Commissariat a l'energie atomique et aux energies alternatives
    Inventors: Samuel Roselier, Gwenael Changeon, Jose Lozada
  • Patent number: 8302327
    Abstract: A valve for magnetorheological fluids is formed with a control duct in which the magnetic field of a magnetic device, consisting of a permanent magnet and coil, acts on the fluid. The viscosity of the fluid is directly proportional to the magnetic field strength, with the result that the flow resistance of the valve can be varied via the coil current. The respective control duct is arranged in the end-face region of the coil and runs radially with respect to the center line of the valve, with the result that high flux densities can be achieved in the control duct. A permanent magnet is arranged in the inner space of the coil and, even under currentless operating conditions, can close the valve up to a certain blocking pressure.
    Type: Grant
    Filed: March 18, 2010
    Date of Patent: November 6, 2012
    Assignee: Inventus Engineering GmbH
    Inventor: Stefan Battlogg
  • Publication number: 20120261013
    Abstract: A microfluidic system includes a bubble valve for regulating fluid flow through a microchannel. The bubble valve includes a fluid meniscus interfacing the microchannel interior and an actuator for deflecting the membrane into the microchannel interior to regulate fluid flow. The actuator generates a gas bubble in a liquid in the microchannel when a sufficient pressure is generated on the membrane.
    Type: Application
    Filed: June 19, 2012
    Publication date: October 18, 2012
    Applicant: CYTONOME/ST, LLC
    Inventors: John Richard Gilbert, Sebastian Böhm, Manish Deshpande
  • Patent number: 8210209
    Abstract: A microfluidic system includes a bubble valve for regulating fluid flow through a microchannel. The bubble valve includes a fluid meniscus interfacing the microchannel interior and an actuator for deflecting the membrane into the microchannel interior to regulate fluid flow. The actuator generates a gas bubble in a liquid in the microchannel when a sufficient pressure is generated on the membrane.
    Type: Grant
    Filed: May 12, 2006
    Date of Patent: July 3, 2012
    Assignee: Cytonome/ST, LLC
    Inventors: John R. Gilbert, Sebastian Böhm, Manish Deshpande
  • Publication number: 20120138179
    Abstract: Disclosed embodiments include electromagnetic flow regulators for regulating flow of an electrically conductive fluid, systems for regulating flow of an electrically conductive fluid, methods of regulating flow of an electrically conductive fluid, nuclear fission reactors, systems for regulating flow of an electrically conductive reactor coolant, and methods of regulating flow of an electrically conductive reactor coolant in a nuclear fission reactor.
    Type: Application
    Filed: October 6, 2010
    Publication date: June 7, 2012
    Inventors: Roderick A. Hyde, Muriel Y. Ishikawa, Jon D. McWhirter, Ashok Odedra, Joshua C. Walter, Kevan D. Weaver, Lowell L. Wood, JR.
  • Publication number: 20120085447
    Abstract: Disclosed embodiments include electromagnetic flow regulators for regulating flow of an electrically conductive fluid, systems for regulating flow of an electrically conductive fluid, methods of regulating flow of an electrically conductive fluid, nuclear fission reactors, systems for regulating flow of an electrically conductive reactor coolant, and methods of regulating flow of an electrically conductive reactor coolant in a nuclear fission reactor.
    Type: Application
    Filed: December 28, 2010
    Publication date: April 12, 2012
    Inventors: Roderick A. Hyde, Muriel Y. Ishikawa, Jon D. McWhirter, Ashok Odedra, Joshua C. Walter, Kevan D. Weaver, Lowell L. Wood, JR.
  • Publication number: 20120085448
    Abstract: Disclosed embodiments include electromagnetic flow regulators for regulating flow of an electrically conductive fluid, systems for regulating flow of an electrically conductive fluid, methods of regulating flow of an electrically conductive fluid, nuclear fission reactors, systems for regulating flow of an electrically conductive reactor coolant, and methods of regulating flow of an electrically conductive reactor coolant in a nuclear fission reactor.
    Type: Application
    Filed: December 28, 2010
    Publication date: April 12, 2012
    Inventors: Roderick A. Hyde, Muriel Y. Ishikawa, Jon D. McWhirter, Ashok Odedra, Joshua C. Walter, Kevan D. Weaver, Lowell L. Wood, JR.
  • Publication number: 20110203771
    Abstract: A heat exchange system includes an electrode configured to electrostatically control a flow of a heated gas stream in the vicinity of a heat transfer surface and/or a heat-sensitive surface.
    Type: Application
    Filed: January 13, 2011
    Publication date: August 25, 2011
    Applicant: CLEARSIGN COMBUSTION CORPORATION
    Inventors: DAVID GOODSON, THOMAS S. HARTWICK, CHRISTOPHER A. WIKLOF
  • Patent number: 8003062
    Abstract: A microchannel has a substrate body; a separation channel which is formed within the substrate; at least two (first and second) connection ports which are formed at one end of the separation channel close to the thickness direction perpendicular to the longitudinal direction of the substrate body; and first and second branch channels connected respectively to the first and second connection ports. When the substrate body is perpendicular to gravity, a blood sample containing blood cells and plasma, flows from one end of the separation channel. Before the blood sample gets to the other end of the separation channel, the blood cells in the blood sample settle out. The blood cells having settled out are then separated into the branch channel.
    Type: Grant
    Filed: May 22, 2007
    Date of Patent: August 23, 2011
    Assignee: Kyoto University
    Inventors: Hidetoshi Kotera, Masao Washizu, Hidehiro Oana
  • Publication number: 20110174406
    Abstract: The invention relates to a method and device for regulating the flow rate and for slowing down non-ferromagnetic, electrically conducting liquids and melt streams through magnetic fields, in particular in the tapping of metallurgical containers such as blast furnaces and melt furnaces.
    Type: Application
    Filed: February 7, 2011
    Publication date: July 21, 2011
    Inventor: Hans-Uwe MORGENSTERN
  • Patent number: 7850907
    Abstract: Forming a structure attached to a micro-fluidic channel based on hydrodynamic focusing is disclosed. In one aspect, a polymerizable fluid and a focusing fluid may be introduced into a hydrodynamic focusing system. The polymerizable fluid may be hydrodynamically focused with the focusing fluid. Then the focused polymerizable fluid may be polymerized to form a structure attached to a channel of the hydrodynamic focusing system.
    Type: Grant
    Filed: September 29, 2005
    Date of Patent: December 14, 2010
    Assignee: Intel Corporation
    Inventor: Narayanan Sundararajan
  • Patent number: 7811521
    Abstract: A testing microchip includes a specimen storage section; a reagent storage section; a reaction section; a testing section for a test of a reaction product obtained from the reaction; a liquid feed control section; and a gas bubble trapping structure. The sections are connected continuously by a series of flow channels. The liquid feed control section stops passing of liquid until a liquid feeding pressure reaches a predetermined pressure, and passes the liquid when the liquid feeding pressure becomes higher than the predetermined pressure; and the gas bubble trapping structure traps a gas bubble in the liquid that flows in the flow channel so that the gas bubble does not flow to the downstream side and only the liquid passes to the downstream side. A testing apparatus that performs testing in the testing section of the testing microchip, wherein the testing microchip is attachably and detachably mounted to the apparatus.
    Type: Grant
    Filed: March 21, 2006
    Date of Patent: October 12, 2010
    Assignee: Konica Minolta Medical & Graphic, Inc.
    Inventors: Yasuhiro Sando, Akihisa Nakajima, Kusunoki Higashino
  • Publication number: 20100252118
    Abstract: Microfluidic structures and methods for manipulating fluids, fluid components, and reactions are provided. In one aspect, such structures and methods can allow production of droplets of a precise volume, which can be stored/maintained at precise regions of the device. In another aspect, microfluidic structures and methods described herein are designed for containing and positioning components in an arrangement such that the components can be manipulated and then tracked even after manipulation. For example, cells may be constrained in an arrangement in microfluidic structures described herein to facilitate tracking during their growth and/or after they multiply.
    Type: Application
    Filed: April 18, 2008
    Publication date: October 7, 2010
    Inventors: Seth Fraden, Hakim Boukellal, Yanwei Jia, Seila Selimovic, Amy Rowat, Jeremy Agresti, David A. Weitz
  • Publication number: 20100024887
    Abstract: An air purge apparatus and method is presented to protect an imaging system from contamination by particulate matter and other substances in the ambient environment. The apparatus is adapted to be placed adjacent to a viewing window, lens or optics of an imaging system and to provide a protective flow of air. The apparatus includes a curved surface to direct air from a first plenum toward an imaging path in front of the apparatus. The apparatus also includes one or more openings nearer the lens to direct air from a second plenum into the imaging path. The air from the first plenum entrains air from the second plenum and ambient air to create a fluid stream away from the viewing window, lens, or optics and may form a fluid barrier to reduce contamination of a volume of air in the imaging path of the imaging sensor.
    Type: Application
    Filed: July 31, 2008
    Publication date: February 4, 2010
    Inventors: Derek Williams, Gary Garnier, Kent Stemer, Paul Carlson
  • Publication number: 20090294231
    Abstract: Please replace the Abstract with the following amended Abstract: A magneto-rheological fluid valve includes a magnetic field generator having at least one electromagnetic coil and at least one magnetic pole having a pole length Lm. The magneto-rheological fluid valve further includes at least one flow channel adjacent to the magnetic field generator. The at least one flow channel has a gap width g, wherein the ratio Lm/g is greater than or equal to 15.
    Type: Application
    Filed: June 2, 2009
    Publication date: December 3, 2009
    Applicant: LORD CORPORATION
    Inventors: J. David Carlson, Mark R. Jolly, Douglas E. Ivers
  • Patent number: 7585816
    Abstract: A method for inhibiting the formation of gas hydrates in a petroleum fluid having hydrate-forming constituents is claimed. More specifically, the method can be used to treat a petroleum fluid, such as natural gas conveyed in a pipe, to inhibit the formation of a hydrate flow restriction in the pipe. The preferred hydrate inhibitors used for practicing the method comprise substantially water soluble homopolymers and copolymers of isopropylmethacrylamide derivatives which have a bimodal molecular weight distribution.
    Type: Grant
    Filed: June 15, 2004
    Date of Patent: September 8, 2009
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Karla S. Colle, Larry D. Talley, John M. Longo
  • Publication number: 20090194181
    Abstract: The invention relates to a fluidic system that includes a body structure having a chamber disposed therein. The fluidic system includes at least one fluid input at a first end of the chamber and at least one fluid output at a second end of the chamber. The fluidic system also includes a sensor device (e.g., an acoustic device) having a surface defining a portion of a surface of the chamber. The fluidic system also includes a first surface at the first end of the chamber oriented at an oblique or arcuate (e.g., curved) angle relative to the surface of the sensor device to direct fluid through the chamber.
    Type: Application
    Filed: February 4, 2008
    Publication date: August 6, 2009
    Applicant: BioScale, Inc.
    Inventors: Brett P. Masters, Peter W. Falb, Michael F. Miller
  • Publication number: 20080255007
    Abstract: The invention relates to a substrate material for analyzing one or more fluid samples for the presence, amount or identity of one or more analytes in the samples, whereby the substrate material is adapted in that way that a flow of the sample or parts thereof in and/or with the substrate material is influenced and/or caused by phase transitions, preferably photoinducable phase transitions, in selected areas of the substrate material.
    Type: Application
    Filed: August 17, 2006
    Publication date: October 16, 2008
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS, N.V.
    Inventors: Dirk Jan Broer, Roel Penterman, Emiel Peeters, Ralph Kurt
  • Patent number: 7412990
    Abstract: Provided is a microfluidic control device and method for controlling the microfluid, and a fine amount of fluid is controlled even with natural fluid flow and solution injection, wherein a pressure barrier of a capillary is removed by a surface tension change resulted from the solution injection to thereby obtain transport, interflow, mixing, and time delay of the microfluid, and to detail this, solution is injected to meet the boundary surface of the stopped fluid when the fluid is stopped by the stop valve, so that a function of the stop valve is removed to obtain the transport, interflow, and mixing of the fluid, and the method for controlling the microfluid may be applied to the microfluidic control device for biochemical reaction, and it uses only the capillary force change resulted from solution injection to thereby have its structure simplified.
    Type: Grant
    Filed: July 27, 2004
    Date of Patent: August 19, 2008
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Kwang Hyo Chung, Hae Sik Yang, Dae Sik Lee, Yong Taek Lim, Sung Jin Kim, Se Ho Park, Kyu Won Kim, Yun Tae Kim
  • Publication number: 20080118370
    Abstract: Provided is an electrohydrodynamic (EHD) micro-pump and a method of operating the same. The EHD micro-pump includes a plurality of electrodes alternately disposed on a substrate, an insulating layer covering the electrodes on the substrate, a carbon nanotube (CNT) layer formed on the insulating layer, a cover that forms a chamber with the substrate to accommodate the plurality of electrodes on the substrate where the cover includes a fluid inlet and a fluid outlet, an upper electrode formed on an inner surface of the cover facing the plurality of electrodes, and a power supplier that applies a voltage to the plurality of electrodes.
    Type: Application
    Filed: April 16, 2007
    Publication date: May 22, 2008
    Inventors: Andrei Zoulkarneev, Jun-Hee Choi
  • Publication number: 20080105315
    Abstract: Low pressure off gases such as from dry gas seals may be recompressed to a higher pressure using multiple tandem supersonic ejectors in which upstream ejectors operate at a higher nozzle exit Mach number than down stream ejectors and all ejectors are operated at exit Mach numbers greater than 1.
    Type: Application
    Filed: May 31, 2007
    Publication date: May 8, 2008
    Inventors: Kamal K. Botros, John Geerligs, Hasan Imran
  • Patent number: 7216660
    Abstract: The invention is directed to a method and device for routing, mixing, or reacting droplets or liquid microstreams along the surface of a flat substrate. The flow of liquid microstreams or microdroplets along designated pathways is confined by chemical surface patterning. Individually addressable heating elements, which are embedded in the substrate, can be used to generate flow via thermocapillary effects or to trigger or quench chemical reactions. The open architecture allows the liquid to remain in constant contact with the ambient atmosphere. The device can be used for microfluidic applications or as a surface reactor or biosensor, among other applications.
    Type: Grant
    Filed: November 2, 2001
    Date of Patent: May 15, 2007
    Assignee: Princeton University
    Inventors: Sandra M. Troian, Anton A. Darhuber, Sigurd Wagner
  • Patent number: 7216671
    Abstract: A method of fabricating an elastomeric structure, comprising: forming a first elastomeric layer on top of a first micromachined mold, the first micromachined mold having a first raised protrusion which forms a first recess extending along a bottom surface of the first elastomeric layer; forming a second elastomeric layer on top of a second micromachined mold, the second micromachined mold having a second raised protrusion which forms a second recess extending along a bottom surface of the second elastomeric layer; bonding the bottom surface of the second elastomeric layer onto a top surface of the first elastomeric layer such that a control channel forms in the second recess between the first and second elastomeric layers; and positioning the first elastomeric layer on top of a planar substrate such that a flow channel forms in the first recess between the first elastomeric layer and the planar substrate.
    Type: Grant
    Filed: February 10, 2005
    Date of Patent: May 15, 2007
    Assignee: California Institute of Technology
    Inventors: Marc Unger, Hou-Pu Chou, Todd Thorsen, Axel Scherer, Stephen Quake, Markus Enzelberger, Mark Adams, Carl Hansen
  • Patent number: 7204263
    Abstract: A method of simply controlling the flow of fluid in a micro system without using a complicated value structure, comprising the steps of adding the substance transformed from sol-gel by stimulation to the fluid flowing through the micro flow passage of the micro system, and adding the stimulation to the fluid at a desired position on the micro flow passage to transform the fluid into gel for flow control.
    Type: Grant
    Filed: November 8, 2001
    Date of Patent: April 17, 2007
    Assignee: Japan Science and Technology Corporation
    Inventors: Shouichirou Tsukita, Takashi Funatsu, Shuichi Shouji
  • Patent number: 7159618
    Abstract: The invention relates to an electrically-opened micro fluid-valve. The inventive valve comprises: at least one planar support (12); at least one afferent microchannel (14); at least one efferent microchannel (16), said microchannels being arranged in the support (12); such that at least one of the ends (141 and 161) thereof touch the inner face (121) of the support close to one another; at least one deposit (18) of a heat-sensitive material which is disposed on the inner face (121) of the support (12); and at least one heating means (20). According to the invention, the aforementioned deposit (18) of heat-sensitive material at least partially seals the space separating the ends (141 and 161) of the microchannels (14 and 16), thereby preventing same from intercommunicating.
    Type: Grant
    Filed: June 15, 2004
    Date of Patent: January 9, 2007
    Assignees: Bio{acute over (m)}erieux, SNPE Matériaux Energétiques
    Inventors: Patrick Broyer, Bruno Colin, Denis Roller