By Non-fluid Energy Field Affecting Input (e.g., Transducer) Patents (Class 137/827)
  • Patent number: 10449538
    Abstract: A specimen processing cartridge includes a reservoir having a fluid inlet, an elastic diaphragm, and a fluid outlet. The reservoir is operable to receive a volume of liquid from the fluid inlet, and the fluid outlet is positioned along a fluid flow path between the reservoir and a downstream reservoir. The cartridge includes a dissolvable membrane that occludes flow through the fluid outlet when the dissolvable membrane is in a first, undissolved state, and that permits flow from the reservoir to the downstream reservoir when in a second, dissolved state. The elastic diaphragm is operable to pressurize the reservoir upon receiving the volume of liquid when the dissolvable membrane is in the first, undissolved state, and is operable to contract and propel at least a portion of the volume of liquid from the reservoir to the downstream reservoir when the dissolvable membrane is in the second, dissolved state.
    Type: Grant
    Filed: February 25, 2019
    Date of Patent: October 22, 2019
    Assignee: PARTUS DIAGNOSTICS, LLC
    Inventors: John Jacob Carrano, John Carrano, Nicole Plata
  • Patent number: 10435985
    Abstract: An autonomous valve includes a fluid-sensitive actuator operable to automatically actuate the valve in response to being exposed to a target fluid. The target fluid may be a fluid whose presence is generally undesirable in a production fluid, such as water, and the valve may be actuated to stop flow from an interval within a wellbore that is no longer expected to produce hydrocarbon-bearing fluids. The valve further includes a protective layer disposed between the fluid inlet and the fluid-sensitive actuator, the protective layer being insoluble in the target fluid. The fluid-sensitive actuator may include a swellable piston that swells to actuate the valve in the presence of the target fluid, a soluble plug that isolates a hydraulic, closing piston until the soluble plug is dissolved into the target fluid, and an electromechanical actuator that closes the valve in response to detecting the target fluid using an electronic sensor.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: October 8, 2019
    Assignee: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Jimmie R. Williamson, Jr., Adam E. Beck
  • Patent number: 9994805
    Abstract: A microfabricated device having at least one gas-entrapping feature formed therein in a configuration that entraps air bubbles upon wetting the feature with a solvent or solution is described. The device includes a sacrificial residue in contact with the gas-entrapping feature, the dissolution of which guides the wetting of the gas-entrapping feature.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: June 12, 2018
    Assignee: The University of North Carolina at Chapel Hill
    Inventors: Nancy Allbritton, Yuli Wang, Christopher Sims
  • Patent number: 9770600
    Abstract: A variety of wearable magnetic assemblies are provided that are configured to produce magnetic fields having high field magnitudes and/or high field gradients. These wearable magnetic assemblies are configured to exert forces on magnetic particles disposed in a portion of subsurface vasculature (e.g., a portion of the ulnar artery near the wrist) proximate to the magnetic assemblies. These magnetic assemblies include a plurality of dipolar permanent magnets. The forces can act to attract, slow, speed, separate, or otherwise influence the magnetic particles in various applications. In some embodiments, the magnetic particles are configured to bind to an analyte of interest. The collection, separation, and/or concentration of the magnetic particles can enable detection of one or more properties of the analyte, modification of the analyte, and/or extraction of the analyte bound to the magnetic particles.
    Type: Grant
    Filed: July 9, 2014
    Date of Patent: September 26, 2017
    Assignee: Verily Life Sciences LLC
    Inventors: Vasiliki Demas, Vikram Singh Bajaj
  • Patent number: 9579653
    Abstract: The present invention relates to a liquid channel device capable of easily opening the liquid channel from the closed mode, including a base plate in which a liquid channel, through which a liquid containing at least one of a sample and a reagent, flows, and a metering chamber for holding the liquid, are formed to at least one side thereof, the metering chamber has a liquid transport section for transporting the liquid inside the chamber downstream, and this liquid transport section is operated by means of external pressing on a cover plate in the area opposite the metering chamber.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: February 28, 2017
    Assignee: Fujikura Kasei Co., Ltd.
    Inventors: Shigeru Takahashi, Masaaki Sakurai, Jiro Wakamatsu
  • Patent number: 9486757
    Abstract: Parallel uses of microfluidic methods and devices for focusing and/or forming discontinuous sections of similar or dissimilar size in a fluid are described. In some aspects, the present invention relates generally to flow-focusing-type technology, and also to microfluidics, and more particularly parallel use of microfluidic systems arranged to control a dispersed phase within a dispersant, and the size, and size distribution, of a dispersed phase in a multi-phase fluid system, and systems for delivery of fluid components to multiple such devices.
    Type: Grant
    Filed: May 12, 2015
    Date of Patent: November 8, 2016
    Assignee: President and Fellows of Harvard College
    Inventors: Mark Romanowsky, Adam R. Abate, David A. Weitz
  • Patent number: 9441753
    Abstract: A printed circuit board electrorheological fluid valve and method with spaced, bonded, epoxy printed circuit board laminates defining flow channels therebetween. Electrodes are formed on opposite surfaces of the flow channels and surface pads on a laminate are electrically connected to the electrodes for applying a voltage thereto controlling the flow of electrorheological fluid in the flow channels.
    Type: Grant
    Filed: April 30, 2013
    Date of Patent: September 13, 2016
    Assignee: Boston Dynamics
    Inventors: Marc Strauss, Michael Murphy
  • Patent number: 9283562
    Abstract: The present invention relates to a liquid channel device capable of easily opening the liquid channel from the closed mode, including a base plate in which a liquid channel, through which a liquid containing at least one of a sample and a reagent, flows, and a metering chamber for holding the liquid, are formed to at least one side thereof, the metering chamber has a liquid transport section for transporting the liquid inside the chamber downstream, and this liquid transport section is operated by means of external pressing on a cover plate in the area opposite the metering chamber.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: March 15, 2016
    Assignee: Fujikura Kasei Co., Ltd.
    Inventors: Shigeru Takahashi, Masaaki Sakurai, Jiro Wakamatsu
  • Patent number: 9273644
    Abstract: A magnetic ionization device is disclosed that reduces the toxic effects of diesel emissions. The magnetic ionization device comprises a pair of brackets secured together around a fuel line, and at least two permanent rare earth magnets secured to the pair of brackets. The pair of brackets each comprises an interior surface and an exterior surface, and are generally V-grooved in shape. Furthermore, the brackets comprise a recess for receiving a portion of a fuel line. Once the permanent rare earth magnets are secured to the brackets, the brackets and magnets can be coated with plastic, powder metal, or any other suitable protective layer as is known in the art. The pair of brackets is then secured together around a fuel line via plastic ties, nuts, bolts, and/or washers, etc.
    Type: Grant
    Filed: May 30, 2013
    Date of Patent: March 1, 2016
    Inventor: Roman Kulesza
  • Patent number: 9132425
    Abstract: Electronic-fluidic hybrid form dividers, constructed by a simple planer droplet generation structure, a pair of signal electrodes, and a responsive control valve, which is programmed to respond to only certain signal droplets, by a basic electronic principle: change of voltage share between impedances. Detected fluidic information is addressed in both electronic and fluidic forms, and the fluidic pathway is well-confined in a simple planar structure, although its control valve is in a second layer, thereby minimizing any fluidic disturbance. Various configurations comprise a plurality of identical structures, which can alter their cumulative function by re-assignment of required voltage share. The hybrid divider can be assembled into a fluidic universal logic gate, of a simple two inlet and one outlet signal channels structure, and switch between sixteen functions by re-assigning voltage share.
    Type: Grant
    Filed: April 11, 2011
    Date of Patent: September 15, 2015
    Assignee: THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Weijia Wen, Limu Wang, Xiang Wang, Shunbo Li
  • Patent number: 9108173
    Abstract: A droplet-generating device is provided. The droplet-generating device comprises a first microchannel and a second microchannel. The first microchannel includes a first fluid inlet and a second fluid inlet. The second microchannel crossing over and communicating with the first microchannel at an intersectional region includes a third fluid inlet, a fourth fluid inlet, a fluid outlet, a three-way junction and a side wall. The intersectional region is configured between the third fluid inlet and the three-way junction, and the side wall is disposed between the fourth fluid inlet and the fluid outlet and extended downward. A method of producing a droplet is also provided.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: August 18, 2015
    Assignee: NATIONAL CHENG KUNG UNIVERSITY
    Inventors: Denz Lee, Chin-Yao Chen
  • Patent number: 9103502
    Abstract: A device and method of laminar flow patterning of at least one sample fluid in a main channel in a microfluidic device are provided. A first input channel is provided in the microfluidic device. The first input channel has an output end communicating with the first end of the main channel and an input end communicating with a first input port. A buffer fluid is deposited in the main channel and the first input channel and a first sample fluid is deposited in the first input port. A first pressure is generated in response to the depositing of the first sample fluid in the first input port so as to cause laminar flow of the first sample fluid in the main channel.
    Type: Grant
    Filed: April 19, 2012
    Date of Patent: August 11, 2015
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: David J. Beebe, Jay Warrick, Erwin Barthler
  • Patent number: 9044036
    Abstract: The present invention relates to a method and an apparatus for producing a chocolate product. The method includes delivering liquid chocolate having a viscosity through a pipe along a delivery path to a production station for producing the chocolate product. The liquid chocolate includes solid particles suspended within the liquid chocolate. The method changes the viscosity of the liquid chocolate by applying an electric field to the liquid chocolate in a direction along the delivery path of a strength and duration determined to aggregate the suspended solid particles into streamlined shapes extending along the direction of the delivery path.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: June 2, 2015
    Assignee: Temple University-of the Commonwealth System of Higher Education
    Inventors: Rongjia Tao, Hong Tang
  • Publication number: 20150116939
    Abstract: A structure and method of using the structure. The structure including an integrated circuit chip having a set of micro-channels; an electro-rheological coolant fluid filling the micro-channels; first and second parallel channel electrodes on opposite sides of at least one micro-channel, the first channel electrode connected to an output of an auto-compensating temperature control circuit, the second channel electrode connected to ground; the auto-compensating temperature control circuit comprising a temperature stable current source connected between a positive voltage rail and the output and having a temperature sensitive circuit connected between ground and the output, a leakage current of the temperature stable current source being essentially insensitive to temperature and a leakage current of the temperature sensitive circuit increasing with temperature.
    Type: Application
    Filed: October 31, 2013
    Publication date: April 30, 2015
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Kerry Bernstein, Kenneth J. Goodnow, Clarence R. Ogilvie, John Sargis, Jr., Sebastian T. Ventrone, Charles S. Woodruff
  • Patent number: 9016318
    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: Grant
    Filed: January 24, 2012
    Date of Patent: April 28, 2015
    Assignee: GM Global Technology Operations LLC
    Inventors: Nilesh D. Mankame, Alan L. Browne, John C. Ulicny
  • 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
  • Publication number: 20150075632
    Abstract: Provided are magneto-cryogenic valves, methods and systems that extract thermal energy from a fluid within a conduit such that the temperature of at least a portion of the fluid is reduced to a temperature below which at least a portion of the fluid becomes a solid thereby forming a frozen plug of fluid and magnetically susceptible particles that reversibly plugs the conduit, preventing flow of fluid past the plug. Also provided are methods and systems for temporarily preventing the flow of fluid in a conduit.
    Type: Application
    Filed: September 12, 2014
    Publication date: March 19, 2015
    Inventors: Daniel X. Wray, Reed Nicholas Liu, Ericson C. Ceniceros
  • 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: 20150047732
    Abstract: A fluidic system having a first volume, a second volume and a membrane geometrically separating the two volumes, which has an open-pore microstructure for the passage of a first medium and a second medium. There is a contact angle (?) between the interface of the media and the pore surface. A first electrical field in the region of the membrane and a first electromagnetic radiation and a first heating of the membrane define a first state (Z1), in which the membrane is not wetted or is less wetted by the first medium and is more heavily wetted by the second medium such that a first contact angle ?1>90° is formed between the pore surface and the interface. The first medium and the second medium and the pore surface have a surface energy of which at least one surface energy can be reversibly changed in such a way that a second contact angle ?2<?1 occurs between the pore surface and the interface in a second state (Z2).
    Type: Application
    Filed: March 27, 2013
    Publication date: February 19, 2015
    Inventors: Michael Bassler, Klaus Stefan Drese, Daniel Latta
  • Patent number: 8944083
    Abstract: A microfluidic device for generation of monodisperse droplets and initiating a chemical reaction is provided. The microfluidic device includes a first input microchannel having a first dimension and including a first phase located therein. The device also includes a second input microchannel having a second dimension and including a second phase located therein. In accordance with the present disclosure, the second dimension is different from the first dimension and the first phase is immiscible in the second phase. A microchannel junction is also present and is in communication with the first input microchannel and the second input microchannel. The device further includes an output channel in communication with the microchannel junction and set to receive a monodisperse droplet. In the present disclosure, the difference in the first dimension and the second dimension creates an interfacial tension induced force at the microchannel junction which forms the monodisperse droplet.
    Type: Grant
    Filed: June 15, 2011
    Date of Patent: February 3, 2015
    Assignee: UT-Battelle, LLC
    Inventors: Charles Patrick Collier, Scott T. Retterer, Seung-Yong Jung
  • Patent number: 8939171
    Abstract: A system and method for controlling fluid flow within a microchannel includes a fluid circuit comprising a fluid outlet well and one or more fluid inlet wells, all in communication with a microchannel. A negative pressure differential is applied to the outlet well and fluid flow from an inlet well into the microchannel is controlled by opening or closing the inlet well to atmospheric pressure. To stop fluid flow from the inlet well, a negative pressure differential may be applied to the inlet well to equalize pressure between the inlet and outlet wells. By sequentially opening and closing different inlet wells to atmosphere, controlled amounts of different reagents can be serially introduced into the microchannel.
    Type: Grant
    Filed: February 15, 2012
    Date of Patent: January 27, 2015
    Assignee: Canon U.S. Life Sciences, Inc.
    Inventors: Shulin Zeng, Gregory A. Dale
  • Publication number: 20140373952
    Abstract: A microchannel formed at the interface of two layers of material, at least one of the two materials being a substrate. A volume of the microchannel contains a film of polymer fixed by covalent bonding to the substrate layer. The film of polymer being formed from a hydrogel material susceptible to undergoing changes in volume under the action of an external stimulus. The hydrogel polymer is chosen from those which are sensitive to changes in temperature, light, electrical field or pH. A method for producing the microchannel.
    Type: Application
    Filed: February 22, 2013
    Publication date: December 25, 2014
    Inventors: Clemence Vergne, Patrick Tabeling, Yvette Tran, Fabrice Monti, Lucie Devys
  • 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
  • Publication number: 20140251477
    Abstract: In accordance with one embodiment, a method for automatically coordinating droplets for optically controlled microfluidic systems, comprising using light to move one or a plurality of droplets simultaneously, applying an algorithm to coordinate droplet motions and avoid droplet collisions, and moving droplets to a layout of droplets. In another embodiment, a system for automatically coordinating droplets for optically controlled microfluidic systems, comprising using a light source to move one or a plurality of droplets simultaneously, using an algorithm to coordinate droplet motions and avoid droplet collisions, and using a microfluidic device to move droplets to a layout of droplets.
    Type: Application
    Filed: March 6, 2014
    Publication date: September 11, 2014
    Inventors: Srinivas Akella, Zhiqiang Ma
  • Publication number: 20140034141
    Abstract: A microactuator may be configured by activating a source of electromagnetic radiation to heat and melt a selected set of phase-change plugs embedded in a substrate of the microactuator, pressurizing a common pressure chamber adjacent to each of the plugs to deform the melted plugs, and deactivating the source of electromagnetic radiation to cool and solidify the melted plugs.
    Type: Application
    Filed: October 4, 2013
    Publication date: February 6, 2014
    Applicant: The Regents of The University of Michigan
    Inventors: Zhishan Hua, Erdogan Gulari, Mark A. Burns, Rohit Pal, Onnop Srivannavit
  • Patent number: 8616239
    Abstract: There is disclosed apparatus and processes for increasing fluidity of a flowing fluid. The apparatus may have a number of treatment chambers adapted to receive and pass the flowing fluid. In each treatment chamber a field is applied to the fluid. The fields may be parallel to the fluid's direction of flow, and may alternate in sequence. The fluidity of the fluid is increased through exposure to the fields.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: December 31, 2013
    Assignee: Save The World Air, Inc.
    Inventor: Douglas Bell
  • Publication number: 20130312857
    Abstract: Drag experienced by a vehicle traveling through an environmental media, such as air or water, may be modified by one or more energy beams which may increase or decrease drag. A control system smay be used to actively modulate the drag of the vehicle by selectively transmitting energy beams. Energy beams may include electric pulse signals, pulsed air, piezoelectric, infrared, ultraviolet, laser, optical band, microwave, thermal other known acoustic, electric, optical, or other electromagnetic energy and any combination thereof. This could be a constant or pulsed energy beam and adjusted for the speed and/or vertical lift, frequency, density, angle, pulse and wavelengths experienced by the vehicle. Charged particles may be emitted from the vehicle itself and then utilized in front or behind the vehicle via electric current to improve the boundary layer, boundary flow.
    Type: Application
    Filed: August 6, 2013
    Publication date: November 28, 2013
    Applicant: P Tech, LLC
    Inventor: Peter M. Bonutti
  • 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: 20130284956
    Abstract: The present disclosure provides a mini-scale microfluidic valve including a valve housing disposed at a fluid dispensing orifice of a mini-scale microfluidic system dispensing nozzle. The valve housing comprises a base member having a base member orifice that aligns with the fluid dispensing orifice to provide a fluid dispensing pathway through which a system-fluid is dispensed from the system dispensing nozzle to an external ambient environment. The housing additionally comprises an open valve channel exposed to the external ambient environment and intersecting the fluid dispensing pathway. The valve further includes a liquid-film movably disposed within the open valve channel such that the liquid-film is exposed to the external ambient environment. The liquid-film comprises a substantially non-volatile, immiscible liquid, and a valve control subsystem structured and operable to control movement of the liquid-film within the open valve channel to selectively cover and uncover the base member orifice.
    Type: Application
    Filed: June 28, 2013
    Publication date: October 31, 2013
    Applicant: THE CURATORS OF THE UNIVERSITY OF MISSOURI
    Inventor: Jae Wan Kwon
  • Publication number: 20130255812
    Abstract: A fluidic actuator includes a basic arrangement having at least one cavity formed therein, an activatable substance within the cavity, and a deformable seal arrangement. The activatable substance, exemplarily an electrolyte, may be converted, at least partly, by suitable activation and thus cause a change in pressure in the cavity. The deformable seal arrangement serves for sealing the cavity. The seal arrangement includes an element containing paraffin and may be deformed when activating the activatable substance due to the change in pressure of the activatable substance. A corresponding method of manufacturing includes the following steps: providing the basic arrangement; forming a cavity, which is open on at least one side, in the basic arrangement; introducing the activatable substance into the cavity; and sealing the cavity using the deformable seal arrangement which includes an element containing paraffin.
    Type: Application
    Filed: May 23, 2013
    Publication date: October 3, 2013
    Applicants: Technische Universitaet Chemnitz, Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Thomas OTTO, Joerg NESTLER, Thomas GESSNER
  • 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: 8397762
    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: Grant
    Filed: February 4, 2008
    Date of Patent: March 19, 2013
    Assignee: BioScale, Inc.
    Inventors: Brett P. Masters, Peter Wight Falb, Michael F. Miller
  • 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.
  • Patent number: 8356631
    Abstract: A fluid transport device transports fluid containing electrolytes within a flow channel. At least a portion of the inner walls of the flow channels are hydrophilic from the inlet to the outlet thereof except at at least one valve portion. The device also includes: the valve portions, which are hydrophobic and function to block transport of at least one fluid; electrodes, which are provided at the at least one valve portion and function to reduce the surface tension of the fluid; and air vents, which are provided at the at least one valve portion and function to introduce air in order to block the fluid.
    Type: Grant
    Filed: September 9, 2008
    Date of Patent: January 22, 2013
    Assignees: Riso Kagaku Corporation, University of Tsukuba
    Inventors: Hiroaki Suzuki, Wataru Satoh, Jun Nakamura
  • Publication number: 20120291874
    Abstract: An airflow control device 10 in an embodiment includes: a vortex shedding structure portion 20 discharging an airflow flowing on a surface in a flow direction as a vortex flow; and a first electrode 40 and a second electrode 41 disposed on a downstream side of the vortex shedding structure portion 20 via a dielectric. By applying a voltage between the first electrode 40 and the second electrode 41, flow of the airflow on the downstream side of the vortex shedding structure portion 20 is controlled.
    Type: Application
    Filed: March 13, 2012
    Publication date: November 22, 2012
    Inventors: Motofumi Tanaka, Hisashi Matsuda, Hiroyuki Yasui, Shohei Goshima, Naohiko Shimura, Kunihiko Wada, Tamon Ozaki, Toshiki Osako, Masahiro Asayama, Yutaka Uchida
  • Publication number: 20120180894
    Abstract: A valve 25 includes: a passage 33 having a first passage 31 which communicates an atmosphere-communicating passage 24 and outside of a cartridge body 10, and a second passage 32 which branches from the first passage; an electrode 35 provided on a wall surface forming the second passage 32; an electrode 37 provided on a wall surface of a bottom wall lid forming the first passage 31; a driver IC 44 which applies a predetermined voltage selectively to one of these two kinds of electrodes 35, 37; an insulating film 36 provided on a surface of the electrode 35; and an insulating film 38 provided on a surface of the electrode 37. Accordingly, there is provided a valve which is capable of opening and closing a passage communicating two spaces separated from each other, which has no movable part, and which has a simple construction.
    Type: Application
    Filed: March 28, 2012
    Publication date: July 19, 2012
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Hiroto SUGAHARA
  • Patent number: 8206994
    Abstract: The invention relates to a method for treating drops in a microfluid circuit, comprising at least one microchannel (12) through which the drops flow, characterized in that a laser (26) is brought to bear on the interface of said drops in the transport liquid (F3), or on the interface of drops in contact, in order to carry out a sorting of the drops, to form nanodrops from a larger drop or to fuse drops (60, 64) in contact and initiate reactions between the fluids contained in said drops.
    Type: Grant
    Filed: May 16, 2007
    Date of Patent: June 26, 2012
    Assignees: Centre National de la Recherche Scientifique, Ecole Polytechnique
    Inventors: Charles N Baroud, Jean-Pierre Delville
  • Publication number: 20120152198
    Abstract: A plasma actuator (1) includes four electrodes (11) and three dielectrics (10) and is disposed on the side of an object surface (B). When a high voltage is applied to the electrodes (11), a plasma (15) is generated at an end (10a) of each dielectric (10) exposed so as to be accessible to a gas. In the plasma actuator (1), the electrodes (11) and dielectrics (10) are alternately stacked one on another. The plasma actuator (1) includes a stepped exposed portion (X). The plasma actuator (1) in which the electrodes (11) and dielectrics (10) are arranged such that the ends (10a) of the dielectrics (10) are exposed in the normal line direction of the object surface (B) in the stacked order in the stepped exposed portion (X) can suppress the flow of the generated plasma even when the plasma actuator is exposed to a high-speed airflow under high pressure. This stabilizes the plasma.
    Type: Application
    Filed: August 23, 2010
    Publication date: June 21, 2012
    Applicant: DAIHATSU MOTOR CO., LTD.
    Inventors: Yoonho Kim, Takeshi Serizawa, Akira Nakajima
  • 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.
  • Patent number: 8101921
    Abstract: A method for inducing a controllable jet in a transparent liquid is disclosed. The method comprises providing a gas-liquid interface, providing a laser source and generating a beam comprising a sequence of laser pulses, and focusing the beam to a target location within the liquid at a predetermined distance from the gas-liquid interface and creating a plurality of cavitation bubbles, yielding a jet directed away from the gas-liquid interface. Other methods and apparatus are also described and claimed.
    Type: Grant
    Filed: June 4, 2008
    Date of Patent: January 24, 2012
    Assignee: Carl Zeiss SMS Ltd
    Inventors: Sergey Oshemkov, Vladimir Dmitriev, Lev Dvorkin
  • Patent number: 8100672
    Abstract: A microfluidic structure with an electrically controlled pressure source is shown. The pressure source is an electrolyte connected with electrodes. Dissociation of the electrolyte generates the pressure, which is used to obtain a valve-like or pump-like behavior inside the microfluidic structure. A process for manufacturing the microfluidic structure and a method to circulate fluids in a microfluidic channel are also described.
    Type: Grant
    Filed: January 6, 2009
    Date of Patent: January 24, 2012
    Assignee: California Institute of Technology
    Inventors: Sameer Walavalkar, Axel Scherer
  • Patent number: 8037902
    Abstract: Novel fluid logic devices are disclosed. Certain examples of the fluid logic devices include two or more fluid logic gates that are each operative to select and/or direct analytes in a sample into one or more fluid flow channels in communication with the fluid logic gates. The fluid logic device can be part of a larger system, such as a chromatography system, or can be stand-alone device.
    Type: Grant
    Filed: May 19, 2004
    Date of Patent: October 18, 2011
    Assignee: Protasis Corporation
    Inventors: David Strand, Dan M. Leatzow
  • Patent number: 8021961
    Abstract: A process for fabricating multiple microfluidic device chips. The process includes fabricating multiple micromachined tubes in a semiconductor device wafer. The tubes are fabricated so that each tube has an internal fluidic passage and an inlet and outlet thereto defined in a surface of the device wafer. The device wafer is then bonded to a glass wafer to form a device wafer stack, and so that through-holes in the glass wafer are individually fluidically coupled with the inlets and outlets of the tubes. The glass wafer is then bonded to a metallic wafer to form a package wafer stack, so that through-holes in the metallic wafer are individually fluidically coupled with the through-holes of the glass wafer. Multiple microfluidic device chips are then singulated from the package wafer stack. Each device chip has a continuous flow path for a fluid therethrough that is preferably free of organic materials.
    Type: Grant
    Filed: May 12, 2009
    Date of Patent: September 20, 2011
    Assignee: Integrated Sensing Systems, Inc.
    Inventor: Douglas Ray Sparks
  • Patent number: 8016208
    Abstract: An ultrasound apparatus capable of mixing and/or atomizing fluids is disclosed. The apparatus includes a horn having an internal chamber through which fluids to be atomized and/or mixed flow. Connected to the horn's proximal end, a transducer powered by a generator induces ultrasonic vibrations within the horn. Traveling down the horn from the transducer, the ultrasonic vibrations induce the release of ultrasonic energy into the fluids to be atomized and/or mixed as they travel through the horn's internal chamber. As the ultrasonic vibrations travel through the chamber, the fluids within the chamber are agitated and/or begin to cavitate, thereby mixing the fluids. Upon reaching the front wall of the chamber, the ultrasonic vibrations are reflected back into the chamber, like an echo. The ultrasonic vibrations echoing off the front wall pass through the fluids within the chamber a second time, further mixing the fluids.
    Type: Grant
    Filed: February 8, 2008
    Date of Patent: September 13, 2011
    Assignee: Bacoustics, LLC
    Inventor: Eilaz Babaev
  • Publication number: 20110100495
    Abstract: A fluid transport/containment apparatus includes a fluid-bearing module and an actuation module. The fluid-bearing module includes a substrate and fluid transport/containment elements distributed therein, with one or more of the fluid transport/containment elements having microfluidic dimensions. The actuation module is detachably secured to the fluid-bearing module such that the actuation elements are operatively interfaced with the fluid transport/containment elements.
    Type: Application
    Filed: July 19, 2010
    Publication date: May 5, 2011
    Inventor: Richard P. Welle
  • Publication number: 20100307601
    Abstract: Methods comprising: providing a suspension comprising magnetizable particles; and delivering the suspension through a gap (3), wherein a magnetic field is applied in the gap, such that the suspension is sheared in the gap in the presence of the magnetic field to form a conditioned suspension; and devices for conditioning suspensions containing magnetizable particles, the device comprising a gap (3) through which the suspension containing magnetizable particles flows and in which a shear force is applied to the suspension containing magnetizable particles, wherein the device furthermore contains a magnet for generating a magnetic field in the gap (3).
    Type: Application
    Filed: November 25, 2008
    Publication date: December 9, 2010
    Inventors: Claus Gabriel, Günter Oetter, Christoffer Kieburg, Jürgen Pfister, Martin Laun
  • Publication number: 20100277721
    Abstract: An optofluidic device forming a liquid grating, a liquid detector or a liquid emitter and method(s) of operation.
    Type: Application
    Filed: April 30, 2009
    Publication date: November 4, 2010
    Applicant: ALCATEL-LUCENT USA Inc.
    Inventors: Paul KOLODNER, Tom KRUPEKIN, Oleksandr SYDORENKO, Joseph TAYLOR
  • Patent number: 7819138
    Abstract: The microfluidic device includes a rotatable platform, a plurality of connection ports disposed at a portion of the platform proximate to a shaft connection hole, the plurality of connection ports capable of being connected to an external connector for selectively injecting and discharging fluid and being closed by the connector, a trap chamber disposed at a portion of the platform further away from the shaft connection hole than the plurality of connection ports, the trap chamber including an inlet connected with at least one connection port of the plurality of connection ports, an outlet connected with another connection port of the plurality of connection ports and structures which enlarge a contact area with the fluid and a temporary storage including an inlet connected with the outlet of the trap chamber and an outlet connected with another connection port of the plurality of connection ports.
    Type: Grant
    Filed: October 10, 2007
    Date of Patent: October 26, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hun-joo Lee, Nam Huh, Soo-suk Lee, Sung-ouk Jung, Soo-hyung Choi
  • Patent number: 7803432
    Abstract: The present invention fundamentally differs from conventional methods in which an external force is directly applied to a surface of an article to be modified, and relates to a method of hydrophobilization (increasing a contact angle of water) which comprises bringing a hydrophobilization substance (a substance for increasing a contact angle of water) released from a material of another location into contact with a surface of an article, especially an article surface being hydrophilic (having a small contact angle of water) in its initial state without applying an external force on the article surface, further a method of control being capable of noncontact switching of a contact angle of water, which comprises conducting hydrophilization of an article surface subjected to hydrophobilization by the above-mentioned method in a noncontact manner and repeating these hydrophobilization and hydrophilization, and a method of pattern formation using the mentioned methods.
    Type: Grant
    Filed: October 1, 2004
    Date of Patent: September 28, 2010
    Assignees: Daikin Industries, Ltd., National Institute of Advanced Industrial Science and Technology
    Inventors: Junko Takahashi, Hidenori Nagai, Shinichi Wakida