Separating Particles Patents (Class 210/748.05)
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Patent number: 8075786Abstract: An acoustic/pressure wave-driven device for separating a first component from a mixture of the first component and a second fluid component. The device comprises a rich reservoir, a lean reservoir, a pump reservoir, a bridge structure, and an acoustic/pressure wave source. The rich reservoir is for containing a fluid mixture having an elevated concentration of the first component. The lean reservoir is for containing a fluid mixture having a lesser concentration of the first component that is leaner than the concentration of the first component in fluid mixture of the rich reservoir. The pump reservoir contains a fluid mixture of the first component and the second fluid component. The bridge structure has a sidewall defining a gradient channel in fluid communication with the rich reservoir and the lean reservoir and a length extending there between. The gradient channel is for containing a fluid having a concentration gradient of the first component along its length.Type: GrantFiled: September 5, 2007Date of Patent: December 13, 2011Assignee: The Board of Regents of the University of OklahomaInventor: Miguel J. Bagajewicz
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Publication number: 20110262990Abstract: The invention provides a settling device comprising an acoustic wave generator and an inclined settling chamber. The angle ? between the acoustic wave direction and the inclined settling chamber is greater than 0 and less than 90°. The invention also provides a concentration method and a separation method using the device. The invention can be used to concentrate or separate particles such as inorganic particles, organic particles, and biological particles, for example, mammalian cells, bacteria, yeast, algae, and plant cells. The invention exhibits technical merits such as higher efficiency, cost-effectiveness, and large-scale production.Type: ApplicationFiled: April 21, 2011Publication date: October 27, 2011Inventors: Zhaowei Wang, Donald Feke, Joanne Belovich
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Patent number: 8029669Abstract: Apparatus for treating a fluid in a conduit, comprising first and second core elements of magnetically conductive material adapted to be mounted to the conduit to surround same at spaced positions therealong; and means for establishing radio frequency magnetic fluxes in said core elements, for generating respective electromagnetic fields in the fluid to be treated extending from spaced positions along the conduit.Type: GrantFiled: December 20, 2005Date of Patent: October 4, 2011Assignee: Hydropath Holdings LimitedInventor: Daniel Stefanini
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Publication number: 20110123392Abstract: Provided herein are systems and methods for separation of particulate from water using ultrasonically generated acoustic standing waves.Type: ApplicationFiled: November 16, 2010Publication date: May 26, 2011Applicant: FloDesign, Inc.Inventors: JASON DIONNE, Bart Lipkens, Edward Rietman
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Publication number: 20100314332Abstract: The invention provides a method for the separation of solids from a semi-solid viscous mass, the method comprising treating a solids-containing semi-solid viscous mass in an apparatus comprising a separating member incorporating a substantially flat solid surface and a supporting member, wherein the separating member is adapted to selectively impart directional momentum to the solids, thereby facilitating separation of the solids from the semi-solid viscous mass. Preferably the separating member comprises a substantially flat solid surface adapted for vibrational motion, the vibrational motion causing the solids material to be displaced from the remainder of the semi-solid viscous mass.Type: ApplicationFiled: August 20, 2010Publication date: December 16, 2010Applicant: BRITISH NUCLEAR FUELS PLCInventor: Kevin Hodgson
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Publication number: 20100243570Abstract: The present invention relates to a method, device and system for measuring and/or treating contaminating components dissolved in a liquid in a liquid flow, such as in a water treatment, the method comprising the steps of: —carrying at least a part of the liquid from the liquid flow with contaminating components present therein into a container or a conduit; —causing precipitation of at least a part of the dissolved contaminating components, wherein solid particles are formed, and/or treating the quantity of process liquid; optionally followed by: —measuring the presence and/or the quantity of solid particles formed.Type: ApplicationFiled: March 17, 2008Publication date: September 30, 2010Inventors: Mateo Jozef Jacques Mayer, Johannes Kuipers, Maarten Markus Nederlof, Sybrandus Jacob Metz
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Publication number: 20100206818Abstract: The present invention relates to semiconductor processing. In particular, it relates to a tunable ultrasonic filter and a method of using the same for more effective separation of large particles from slurry. In one embodiment a standing wave is produced in the filter and large particles are accumulated at the nodes of the standing waves while the slurry is flowed out of the filter.Type: ApplicationFiled: February 19, 2009Publication date: August 19, 2010Applicant: Chartered Semiconductor Manufacturing, Ltd.Inventors: Lup San Leong, Feng Zhao, Benfu Lin, Haigou Huang, Xianbin Wang
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Publication number: 20100193407Abstract: A device for manipulating particles present in a fluid medium is disclosed. The device comprises a planar substrate, formed with at least one primary microchannel to allow passage of the fluid medium therethrough. The primary microchannel(s) has walls and a base and being in fluid communication with a plurality of secondary microchannels via at least one branching point. The device further comprises one or more ultrasound transmission pairs, positioned at opposite sides of the walls to generate ultrasound waves propagating through the fluid medium, substantially parallel to the planar substrate, such as to form a standing wave within the primary microchannel.Type: ApplicationFiled: January 9, 2007Publication date: August 5, 2010Applicant: Yeda Research and Development Co., Ltd.Inventors: Victor Steinberg, Vasily Kantsler, Sophie Matlis-Steinberg, Sergey Kapishnikov
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Patent number: 7766121Abstract: A method and apparatus are provided for the controlled application of ultrasonic energy for conditioning of mixtures of gas and liquids by evolving and/or agglomerating gas bubbles existing with or in a liquid or for coalescing droplets of liquid dispersed in another liquid. The invention in preferred embodiments thereof comprises a coalescing apparatus for increasing the droplet size of a mixture formed as a liquid dispersed in another liquid, and a de-gassing apparatus arranged to evolve and/or agglomerate gaseous bubbles in a gas/liquid mixture. In the apparatuses, ultrasonic transducers are used to impart vibrational energy to the mixtures.Type: GrantFiled: December 20, 2005Date of Patent: August 3, 2010Assignee: Cyclotech LimitedInventors: David Hadfield, Alastair Sinker, Ian Charles Smyth
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Patent number: 7708895Abstract: A method for demulsifying water-oil emulsions through ultrasonic action, comprises a step of making the water-oil emulsions flow through at least one ultrasonic acting region in a flow direction, wherein: within the ultrasonic acting region, a concurrent ultrasonic wave whose traveling direction is the same as the flow direction of the water-oil emulsions is generated by at least a one first ultrasonic transducer provided at the upstream end of the ultrasonic acting region, and at same time, a countercurrent ultrasonic wave whose traveling direction is opposite to the flow direction of the water-oil emulsions is generated by at least a one second ultrasonic transducer provided at the downstream end of the ultrasonic acting region; and the concurrent ultrasonic wave and the countercurrent ultrasonic wave act simultaneously on the water-oil emulsions which flow through the ultrasonic acting region, so as to demulsify the water-oil emulsions.Type: GrantFiled: August 27, 2004Date of Patent: May 4, 2010Assignee: China Petroleum & Chemical CorporationInventors: Shequan Gou, Jianwen Da, Yougui Zhang, Ping Han, Jingyi Zhang
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Patent number: 7703382Abstract: A water dispenser including a water inlet adapted to receive water from a water supply, a water filter operative to filter water received from the water supply via the water inlet, a water outlet operative to provide filtered water received from the water filter, a water spill collector and a pivotably mounted drainage-equipped water container support having a first operative orientation underlying the water outlet and defining a downwardly inclined water spill drainage pathway communicating with the water spill collector and a second, non-operative, orientation not underlying the water outlet.Type: GrantFiled: November 24, 2008Date of Patent: April 27, 2010Assignee: Tana Industries (1991) Ltd.Inventors: Michael Oranski, Avner Sadot, Israel Heifetz, Yoav Dracher
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Publication number: 20100078384Abstract: A method for separating, or removing, particulate material, e.g., blood cells, from a sample of fluid, e.g., whole blood of a patient, in which the particulate material is suspended. In the case of separating blood cells from blood plasma or blood serum, the resulting samples of blood plasma or blood serum can be used for in vitro diagnostic applications. In normal practice, a whole blood sample of a patient are provided and then introduced into an apparatus that contains a flow channel. An acoustic field, which contains acoustic standing waves from external ultrasonic transducers, is located within the flow channel. Laminar flow is maintained in the flow channel. Blood cells and platelets are separated from blood plasma or blood serum at the end of the flow channel and collected. The method described herein allows fluid components to differentially migrate to areas of preferred acoustic interaction.Type: ApplicationFiled: September 26, 2008Publication date: April 1, 2010Applicant: ABBOTT LABORATORIESInventor: Tahua Yang