Stationary Mixing Chamber Patents (Class 366/341)
  • Publication number: 20080316858
    Abstract: The present invention relates to an oscillatory flow mixing reactor (OPM) oscillatory flow which is designed so that a flow with angular momentum is superposed by means effecting circular acceleration on the mixture flowing in with oscillation, with the result that good mixing of the individual phases of the mixture is achieved with the use of low shear forces. A use of the reactor according to the invention is also disclosed.
    Type: Application
    Filed: February 13, 2006
    Publication date: December 25, 2008
    Applicant: DEGUSSA GMBH
    Inventors: Heidi Gron, Rudiger Schutte, Karlheinz Drauz, Klaus Stadtmuller, James Ian Grayson
  • Patent number: 7455889
    Abstract: Holographic data storage media having a sandwiched construction are described in which a holographic recording material is sandwiched between two substrates. The holographic media formulation is often formed of two or more components mixed to obtain a homogeneous formulation. The holographic media formulation may include two or more components which are mixed together prior to injection between the substrates. Curing of the holographic media formulation is substantially avoided during mixing, yet accelerated after the formulation is injected between the substrates. Accordingly, the system and techniques can be used to improve the large scale manufacturability of such media by allowing for fabrication of such media within reasonable cycle times, such as less than one minute, while adhering to stringent requirements for optical clarity and parallelism.
    Type: Grant
    Filed: March 24, 2004
    Date of Patent: November 25, 2008
    Assignee: Imation Corp.
    Inventors: Jathan D. Edwards, Ramon F. Hegel, Thomas J. Adam
  • Patent number: 7442350
    Abstract: An apparatus is disclosed for the generation of hydrogen peroxide. The apparatus is designed to allow for a greater range of tolerances in its manufacture. The apparatus provides for the production of a large scale volume of hydrogen peroxide by the generation of a liquid bearing bubble cloud. The bubbles are generated with a tiny volume before flowing over the reactor bed to generate the hydrogen peroxide.
    Type: Grant
    Filed: May 3, 2004
    Date of Patent: October 28, 2008
    Assignee: UOP LLC
    Inventor: Kurt M. Vanden Bussche
  • Publication number: 20080260660
    Abstract: The invention relates to light-activated teeth whitening compositions, and to the use thereof for lightening teeth. The inventive whitening agent contains riboflavin and or the derivatives thereof, which enable the oxidant in the whitening agent to decompose more rapidly, by means of radiation energy, thus effectively accelerating the whitening action. The invention especially relates to single-constituent or dual-constituent materials that have a stable pasty form and can be optionally additionally chemically activated.
    Type: Application
    Filed: December 16, 2005
    Publication date: October 23, 2008
    Inventors: Jurgen Engelbrecht, J.K. Golich
  • Patent number: 7410288
    Abstract: A fluid mixing device (1) includes a chamber (3) and a bluff body (4) defining one end of the chamber (3). A first fluid inlet (5) is located toward an opposite end of the chamber (3) from the bluff body (4) and arranged to direct fluid toward the bluff body (4). A region substantially surrounding the bluff body (4) has a flow divider (8) defining second fluid inlet(s) (11) to the chamber (3) and mixed fluid outlets (12) from the chamber (3). A fluid flow from the first fluid inlet (5) and/or from the second fluid inlet (11) establishes a recirculating vortex system (14) within the chamber and results in a mixture of fluids from the first fluid inlet (5) and the second fluid inlet(s) (11) being directed through the mixed fluid outlets (12).
    Type: Grant
    Filed: December 24, 1999
    Date of Patent: August 12, 2008
    Assignee: Luminis Pty. Ltd.
    Inventors: Richard Malcolm Kelso, Peter Vernon Lanspeary, Graham J. Nathan, Steven J. Hill, Jordan James Parham, Graham Kelly, Philip Robert Edward Cutler, Moohd Ghazali Budrulhisham
  • Publication number: 20080173060
    Abstract: Method and apparatus for forming conduit or pipe of various sizes into undulating, helical pipe by feeding a length of conduit at a controlled rate through a bending mechanism while also continuously rotating the pipe at a controlled rate so that bending occurs in multiple axis directions and the diameter of the helical path of the conduit centerline of the coil is less than the conduit diameter, the pitch is greater than the pipe diameter, and a straight open channel is retained through the pipe coil.
    Type: Application
    Filed: December 14, 2007
    Publication date: July 24, 2008
    Applicant: Undultec, Inc.
    Inventors: Lubomyr M. Cymbalisty, Frederick Arthur Hemphill
  • Publication number: 20080156899
    Abstract: The present invention provides a slurry spraying or installation system (10) including a gun means (12), a spray nozzle (17) and a conduit (16) connecting said gun means (12) to said spray nozzle (17), said gun means (12) including a pump means to move dry particulate towards said nozzle along said conduit (16), wherein between said gun means (12) and said nozzle (17) is a mixing device (20) which receives said dry particulate and mixes same with liquid under a greater pressure than the pressure that said dry particulate is under, so as to form a liquid and dry particulate mixture; said mixture being fed to said nozzle (17) for dispensing to a target.
    Type: Application
    Filed: March 31, 2005
    Publication date: July 3, 2008
    Applicant: SHINAGAWA REFRACTORIES AUSTRALASIA PTY LTD
    Inventor: Ronald G. McKew
  • Patent number: 7364701
    Abstract: A liquid homogenizing unit comprising a feed flow channel (56), a discharge flow channel (57), a first intermediate flow channel (58) communicating with the feed flow channel (56), and a second intermediate flow channel (55) communicating will the first intermediate flow channel (58) and discharge flow channel (57). The first intermediate flow channel (58) extends in a direction which crosses the second intermediate flow channel (55).
    Type: Grant
    Filed: September 28, 2000
    Date of Patent: April 29, 2008
    Assignee: Arkray, Inc.
    Inventors: Takanori Kamada, Kazunori Hirose
  • Patent number: 7355172
    Abstract: A liquid chromatography/mass spectrometry apparatus combines a chromatograph having a liquid delivery part for delivering mixed multiple solvents, and a mass spectrometer having an ionization part for spraying and ionizing. The apparatus has a storing part for storing a relationship between a mixture ratio of the multiple solvents in the liquid delivery part and an optimal or nearly optimal voltage applied to the ionization part, a ratio information acquiring part for computing the mixture ratio over time, a voltage value computing part for computing the optimal or nearly optimal applied voltage at any point, and a voltage controlling part for changing the voltage applied to the ionization part over time. By virtue of the ability to adjust the applied voltage during analysis, the ionization efficiency is always high, and the analysis can be performed with high sensitivity for all of the multiple components in the liquid sample.
    Type: Grant
    Filed: November 28, 2005
    Date of Patent: April 8, 2008
    Assignee: Shimadzu Corporation
    Inventors: Mayumi Matsui, Hiroaki Waki
  • Patent number: 7351221
    Abstract: A system for dispensing a medium includes at least a first container to hold the medium, a pressurizing device, such as a pump, in fluid connection with the container for pressurizing the medium, and an agitation mechanism or device to maintain the components of the medium in a mixed state. The container and the pressurizing device can be separate units, as in the case of an bag or bottle in fluid connection with a peristaltic or other type of pump. The container and the pump can also be combined in a single unit, as in the case of a syringe, wherein the syringe barrel of the syringe acts to contain the medium and the syringe plunger pressurizes the medium within the syringe barrel. A method of injecting a multi-component medium includes the step of agitating the medium (for example, as described above) before or during an injection procedure to maintain the components of the medium in a mixed state.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: April 1, 2008
    Assignee: MEDRAD, Inc.
    Inventors: Frederick W. Trombley, III, Arthur E. Uber, III, Edward J. Rhinehart, Rosemary Almon-Martin, Alan D. Hirschman
  • Patent number: 7347617
    Abstract: Mixing of liquids in a microfluidic device is accomplished by dispensing the liquids into a first chamber to produce combined liquid. The liquids are thereafter discharged through at least one capillary from the first chamber into a second chamber for complete mixing.
    Type: Grant
    Filed: August 19, 2003
    Date of Patent: March 25, 2008
    Assignee: Siemens Healthcare Diagnostics Inc.
    Inventors: Michael J. Pugia, Lloyd S. Schulman, Hai Hang Kuo, Gert Blankenstein
  • Publication number: 20080060453
    Abstract: A thermophoresis-resistant dilution apparatus for dilution of gas from an emission source, such as a combustion engine, for example a gasoline, diesel or natural gas engine. The apparatus is designed to simulate atmospheric dilution, mixing and cooling processes, enabling sampled emission gas and dilution air to thoroughly mix and cool to ambient temperature, allowing some volatile and semi-volatile gas-phase organics to nucleate, condense and coagulate to their usual aerosol phase. The apparatus is designed to resist thermophorectic forces acting on the particulate matter in the sampled emission gas, thereby preventing particulate matter losses. In addition, the apparatus evenly distributes the dilution air into the sampled gas for improved mixing.
    Type: Application
    Filed: September 11, 2006
    Publication date: March 13, 2008
    Applicant: CUMMINS FILTRATION IP, INC.
    Inventors: Zhili Gerald LIU, Thaddeus Alan SWOR, James Alan DEBILZEN, Casey Lee SEVERANCE
  • Patent number: 7329391
    Abstract: Microfluidic devices for manipulating relatively dense materials, such as colloidal rod particles, are provided. Microfluidic devices for separating a denser first material from a less-dense second material are provided. Methods of manipulating a relatively dense first material, for example, colloidal rod particles, and separating the first material from a less-dense second material, are provided. Methods of marking samples or sample components with relatively dense materials, are also provided.
    Type: Grant
    Filed: December 8, 2003
    Date of Patent: February 12, 2008
    Assignee: Applera Corporation
    Inventor: David Cox
  • Patent number: 7303732
    Abstract: A tubular reactor characterized by having short static mixing elements separated by coalescing zones is used to conduct multiphase liquid/liquid reactions. Small droplets of one of the phases are dispersed into the other phase by the static mixing elements. These droplets coalesce and at least partially phase separate as the mixture passes through the subsequent coalescing zone. The tubular reactor is particularly suitable for nitrating organic compounds while forming low levels of improperly nitrated by-products and low levels of nitrophenolics.
    Type: Grant
    Filed: July 3, 2002
    Date of Patent: December 4, 2007
    Assignee: Dow Global Technologies Inc.
    Inventors: Paul A. Gillis, Helge Braun, Joerg Schmidt, Jan Willem Verwijs, Harald Velten, Kristina Platkowski
  • Patent number: 7300199
    Abstract: A microfluidic device that comprises several microchannel structures in which there are an inlet port, an outlet port and there between a structural unit comprising a fluidic function. The structural unit can be selected amongst units enabling a) retaining of nl-aliquots comprising constituents which has been defined by mixing of aliquots within the microfluidic device (unit A), b) mixing of aliquots of liquids (unit B), c) partition of larger aliquots of liquids into smaller aliquots of liquids and distributing the latter individually and in parallel to different microchannel structure of the same microfluidic device (unit C), d) quick penetration into a microchannel structure of an aliquot of a liquid dispensed to an inlet port of a microchannel structure (unit D), and e) volume definition integrated within a microchannel structure (unit E).
    Type: Grant
    Filed: December 13, 2004
    Date of Patent: November 27, 2007
    Assignee: Gyros AB
    Inventors: Per Andersson, Gunnar Ekstrand
  • Patent number: 7293720
    Abstract: Disclosed herein is a paint circulation system for a painting line, comprising a supply channel, a return channel and a plurality of drop lines downstream of the supply channel and upstream of the return channel, a paint pump means for circulating paint through the supply channel, the drop lines and the return channel with a corresponding flow rate through each drop line, and means for establishing a flow controlling pressure differential between the supply channel and the return channel in each drop line which is directly proportional to the paint flow rate, wherein a change in the flow controlling pressure differential in a given drop line causes a corresponding proportional change in the paint flow rate through the given drop line.
    Type: Grant
    Filed: October 31, 2003
    Date of Patent: November 13, 2007
    Assignee: Honda Motor Co., Ltd.
    Inventor: Paul B. Ramsay
  • Patent number: 7287899
    Abstract: The invention relates to a method for continuously and dynamically mixing at least two fluids. Said method comprises the following steps: a) the rotor (1) of a micromixer is rotatably driven, said micromixer comprising a rotor (1) which is provided with a shaft (2) encompassing blades (3) that are arranged in groups (3a-3g), a stator (4) which is provided with at least one inlet (5) for a first fluid, at least one inlet (6) for a second fluid, and an outlet (7); b) the fluids are fed into the micromixer; and c) a micromixture of the fluids is collected at the outlet (7) of the micromixer. The inventive method is particularly suitable for rapid and/or complex kinetic chemical reactions such as anionic polymerization. The invention also relates to a micromixer for carrying out said method.
    Type: Grant
    Filed: May 23, 2003
    Date of Patent: October 30, 2007
    Assignee: Arkema France
    Inventors: Christophe Navarro, Peter Walzel
  • Publication number: 20070231226
    Abstract: The present invention provides a fluid mixing apparatus having a numbering-up mechanism that distributes plural kinds of fluids and concurrently performs multiple mixing or reactions, comprising: a rectifying section having a plurality of annular channels that rectify the plural kinds of fluids into respective concentric annular flows; a distribution section having a plurality of distribution channels that distribute the plural kinds of fluids rectified by the rectifying section into a plurality of flows; a converging section having a plurality of converging channels that converge different kinds of fluids among the plural kinds of fluids distributed by the distribution section; and a mixing/reaction section having a plurality of mixing/reaction channels that cause mixing or reaction of the plural kinds of fluids converged by the converging section, wherein a plurality of pressure loss increasing devices are provided in the distribution channels.
    Type: Application
    Filed: March 28, 2007
    Publication date: October 4, 2007
    Applicant: FUJIFILM Corporation
    Inventors: Takayuki Fujiwara, Kazuo Okutsu
  • Patent number: 7275858
    Abstract: A microfluidic device that comprises several microchannel structures in which there are an inlet port, an outlet port and there between a structural unit comprising a fluidic function. The structural unit can be selected amongst units enabling a) retaining of nl-aliquots comprising constituents which has been defined by mixing of aliquots within the microfluidic device (unit A), b) mixing of aliquots of liquids (unit B), c) partition of larger aliquots of liquids into smaller aliquots of liquids and distributing the latter individually and in parallel to different microchannel structure of the same microfluidic device (unit C), d) quick penetration into a microchannel structure of an aliquot of a liquid dispensed to an inlet port of a microchannel structure (unit D), and e) volume definition integrated within a microchannel structure (unit E).
    Type: Grant
    Filed: December 13, 2004
    Date of Patent: October 2, 2007
    Assignee: Gyros Patent AB
    Inventors: Per Andersson, Derand Helene
  • Patent number: 7276215
    Abstract: In a vertical reactor vessel through which vapor and liquid flow concurrently, the fluids pass vertically through a horizontal mixing box having internal flow baffles that form at least one mixing orifice through which the process stream flows at high velocity. In the mixing orifices the liquid is dispersed to obtain a large area for interphase heat and mass transfer. Each mixing orifice is followed by structure that divides the process stream into two lower velocity streams, whereby turbulent flow conditions are generated, and wherein hold-up time is provided to allow for heat and mass transfer. The fluids exit the mixing box through an outlet opening in a bottom wall of the mixing box. An impingement plate is located below this outlet opening to spread the liquid and decrease the velocity of the exiting jet. The outlet stream from the mixer is equilibrated regarding temperature and chemical composition.
    Type: Grant
    Filed: November 10, 2003
    Date of Patent: October 2, 2007
    Assignee: Morten Muller Ltd. ApS
    Inventor: Morten Müller
  • Patent number: 7270470
    Abstract: A feed device extends the run time for manufacturing explosive materials. The feed device includes a feed hopper for retaining processing materials where the feed hopper includes an access at the top of the feed hopper for inputting processing materials and an extender attached to the top of the feed hopper. The extender includes at least one baffle fixed within the interior of the extender. Processing material is conveyed from the extender through the access and into the feed hopper.
    Type: Grant
    Filed: April 9, 2004
    Date of Patent: September 18, 2007
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Sharperson G. Johnson
  • Patent number: 7207712
    Abstract: A device and method for creating hydrodynamic cavitation in fluid is provided. The device can include a flow-through chamber having a first portion and a second portion, and a plurality of baffles provided within the second portion of the flow-through chamber. One or more of the plurality of baffles can be configured to be selectively movable into the first portion of the flow-through chamber to generate a hydrodynamic cavitation field downstream from each baffle moved into the first portion of the flow-through chamber.
    Type: Grant
    Filed: September 7, 2004
    Date of Patent: April 24, 2007
    Assignee: Five Star Technologies, Inc.
    Inventor: Oleg V. Kozyuk
  • Patent number: 7165881
    Abstract: Methods and apparatus for high shear reacting and/or mixing of moving fluid streams of materials employ an interdiffusing and reacting zone formed in the space between two stationary surfaces, the surfaces being spaced apart a maximum distance of the sum of the thicknesses of the back-to-back boundary layers of the materials and/or resulting materials on the surfaces, to a value such that any third layer between the two boundary layers is too thin to support agitation characterized by turbulent convection and/or to cause channeling. The materials are interdiffused by high speed laminar shear produced by the flow of the materials rather than mixed by macroscopic convection, the materials being driven by high velocity inlet feeds, auxiliary high pressure gas flow pumped into the reaction/mixing zone, or auxiliary high pressure gas flow created as an evolving gaseous byproduct of any chemical reaction that may occur.
    Type: Grant
    Filed: September 11, 2003
    Date of Patent: January 23, 2007
    Assignee: Holl Technologies Corporation
    Inventor: Richard A. Holl
  • Patent number: 7160025
    Abstract: Microfluidics mixing apparatus and methods of using same are disclosed for mixing fluids using increasing centrifugal force as the fluids being mixed traverse a mixing channel. One inventive apparatus comprises a generally planar substrate having a top major surface and a bottom major surface generally parallel to the top major surface, and a cover plate over the top major surface. The substrate has at least one inlet port that routes fluid to the top major surface, and at least one outlet port for mixed fluid. The substrate comprises a mixing channel having a depth measured from the top surface and a width, the mixing channel adapted to route fluids to be mixed therein in laminar flow and in a substantially spiral flow pattern that is parallel to the top surface. Apparatus of the invention can mix fluids flowing serially, or two or more fluids entering the device from different feed channels.
    Type: Grant
    Filed: June 11, 2003
    Date of Patent: January 9, 2007
    Assignees: Agency for Science, Technology and Research, National University of Singapore
    Inventors: Hongmiao Ji, Victor Samper
  • Patent number: 7147364
    Abstract: The invention provides a mixer capable of mixing two kinds of liquids with each other while varying a mixing ratio in a wide range of the flow rates thereof by causing the two liquids in trace amounts to come into contact with each other, or a mixer capable of mixing in short time. The mixer comprises a mixing chamber very low in profile for effecting mixing reaction, and micro-nozzles, provided at a high density in the upper face and lower face thereof, respectively. The mixer is a mixer wherein micro-nozzles are provided in the inner walls of a mixing chamber, respectively, so as to oppose each other, and two liquids are spurted from the micro-nozzles, respectively, thereby implementing mixing by taking advantage of a diffusion phenomenon. Since the two liquids in trace amounts are ejected from the micro-nozzles, respectively, in such a way as to oppose each other, the two liquids in trace amounts come into contact with each other, thereby enabling diffusion mixing in short time.
    Type: Grant
    Filed: July 30, 2004
    Date of Patent: December 12, 2006
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Tomoki Oohashi, Yasuhiko Sasaki, Masahito Ito, Hironori Kaji
  • Patent number: 7144170
    Abstract: A device for applying a coating comprising a multi-component cartridge comprising at least two cylindrical cartridges, each cylindrical cartridge comprising an aperture and an open filling end that is disposed opposite the aperture and that is slidingly sealed by a cartridge piston seal, a static mixing nozzle in fluid communication with each aperture, and at least one paint applicator selected from the group consisting of a roller, a brush and a spray tip, in fluid communication with the nozzle, wherein at least one flexible hose is disposed between and in fluid communication with the cartridge and the nozzle.
    Type: Grant
    Filed: December 6, 2004
    Date of Patent: December 5, 2006
    Assignee: Richard Parks Corrosion Technologies, Inc.
    Inventors: Richard Parks, Heather Parks
  • Patent number: 7121535
    Abstract: The present invention includes a horizontal foam fractionation protein skimmer for removing organic waste material (dissolved organic compounds) from organic loaded water. The protein skimmer includes a horizontal reaction chamber connected to a foam collection chamber in which protein-loaded foam containing organic waste material is collected. The reaction chamber is comprised of a series of horizontally-directed, nested, concentric tubes for increasing the number and decreasing the size of bubbles to facilitate efficient removal of dissolved organic compounds. Each horizontal tube has either one or several small openings that are offset from the openings on the adjacent tube at a small angle, typically 10°. The openings are formed by either a single slit that runs along the length of each tube, or by a series of holes that runs along the length of each tube. Organic-loaded water is pumped through tubing into the reaction chamber. As water moves through the tubing, gas (e.g.
    Type: Grant
    Filed: November 20, 2004
    Date of Patent: October 17, 2006
    Assignee: Mote Marine Laboratory
    Inventors: Richard Kevin Curlee, Richard H. Paetsch
  • Patent number: 7115187
    Abstract: The invention relates to a method for continually producing a suspension of cellulose in an aqueous tertiary amine oxide. The method includes (a) mixing cellulose and an amine oxide-free aqueous phase to form a cellulose suspension in a mass ratio in the range of 1:3 to 1:40, (b) dehydrating the cellulose suspension, wherein the dehydrated cellulose suspension has a cellulose content in the range of 20 to 80 percent-by-mass; (c) mixing the cellulose suspension with an aqueous amine oxide while the cellulose suspension is falling through a vertical fall zone to obtain an aqueous amine oxide-cellulose suspension with an amine oxide content in the range of 70 to 80 percent-by-mass; and (d) conveying the aqueous amine oxide-cellulose suspension through a horizontal shear zone. The invention also relates to a device for carrying out this method.
    Type: Grant
    Filed: September 29, 2000
    Date of Patent: October 3, 2006
    Assignee: Alceru Schwarza GmbH
    Inventors: Ralf-Uwe Bauer, MUwe Kind
  • Patent number: 7104406
    Abstract: A micro-filter for filtering blood cells has a plurality of filtering channel structures, each having a first through hole and a first concave portion connecting to each other, and a plurality of through channel structures respectively connect to the filtering channel structures. Each defines a second through hole opposite the first concave portion, whereby the filtering channel structures are respectively attached to the through channel structures to provide more than two filtering effects.
    Type: Grant
    Filed: August 18, 2003
    Date of Patent: September 12, 2006
    Assignee: Industrial Technology Research Institute
    Inventors: Wae-Honge Chen, Kai Cheng Chang, Guang-Chyeng Fan, Pei-Fang Liang
  • Patent number: 7097347
    Abstract: A novel mixing apparatus and process for mixing at least two fluids are disclosed. Excellent mixing and superior pressure drop characteristics are achieved in a device comprising at least two supply channels to feed a mixing chamber and create a vortex. The alignment of the supply channels is such that fluids are introduced into the chamber at both tangential and radial directions. In the case of gas/liquid mixing, particularly advantageous is the injection of the liquid stream tangentially and the gas stream radially. When two liquid streams are mixed, it is desirable to distribute them into fine, interdigitated channels prior to introduction into a supply channel and finally into the chamber. The mixed stream is generally withdrawn from the center of the swirling vortex and in a direction perpendicular to the plane of the vortex.
    Type: Grant
    Filed: November 19, 2003
    Date of Patent: August 29, 2006
    Assignee: UOP LLC
    Inventors: Kurt M. Vanden Bussche, Suheil F. Abdo, Volker Hessel, Holger Löwe, Steffen Hardt
  • Patent number: 7080937
    Abstract: In one embodiment, a mixing apparatus for mixing a flowable material comprises a first body having a first mating surface and a plurality of first cavities formed on the first mating surface. The plurality of first cavities are arranged along a first path to provide a variation in depth measured from the first mating surface. A second body has a second mating surface configured to mate with the first mating surface of the first body. The second body includes a plurality of second cavities formed on the second mating surface. The plurality of second cavities are arranged along a second path to provide a variation in depth measured from the second mating surface. The first mating surface of the first body is mated with the second mating surface of the second body to align the first path with the second path. The first cavities fluidicly communicates with the second cavities to form an internal flow path from an inlet through the first cavities and second cavities to an outlet.
    Type: Grant
    Filed: November 13, 2003
    Date of Patent: July 25, 2006
    Assignee: Automatic Bar Controls, Inc.
    Inventors: Juha K. Salmela, Bret Baker
  • Patent number: 7078002
    Abstract: The invention relates to a mixing device for mixing fluids in a multiple bed downflow reactor comprising: (i) a substantially horizontal collection tray; (ii) a swirl chamber for mixing liquid arranged below the collection tray, having an upper end part that is in direct fluid communication with the upper surface of the collection tray and an outlet opening at its lower end, wherein the swirl chamber has a length that is at least 0.35 times its inner diameter; and (iii) a substantially horizontal distribution tray located below the swirl chamber, which distribution tray is provided with a plurality of openings or downcomers for downward flow of liquid and gas. The invention further relates to a multiple bed downflow reactor comprising such a mixing device and to the use of such a reactor in hydrocarbon processing.
    Type: Grant
    Filed: December 11, 2001
    Date of Patent: July 18, 2006
    Assignee: Shell Oil Company
    Inventors: Willem Van Vliet, Maria Den Hartog-Snoeij, legal representative, Arie Pieter Den Hartog, deceased
  • Patent number: 7077906
    Abstract: An apparatus for continuously introducing a substance in liquid phase into plastics granules includes a supporting structure adapted to support in series and in substantial vertical alignment a feeding section, at least one mixing chamber, and at least one drying chamber. The feeding section is provided with means for feeding the granules to at least one spraying chamber provided with means for spraying the substance onto the granules. The at least one mixing chamber of the granules partially or totally coated with the substance includes substantially static mixing means supported in the at least one mixing chamber. The at least one drying chamber is adapted to receive a predetermined amount of the granules coated with the substance. The substantially static mixing means may include, for example, at least one static mixer, a plurality of mixing bars, or at least two superimposed groups of mixing bars.
    Type: Grant
    Filed: January 11, 2005
    Date of Patent: July 18, 2006
    Assignee: Pirelli Cavi e Sistemi S.p.A.
    Inventors: Giuseppe Colombo, Pierluigi Folcini, Giovanni Pozzati, Marcello Del Brenna
  • Patent number: 7070745
    Abstract: The invention relates to a multiple bed downflow reactor comprising vertically spaced apart reaction beds, preferably beds of catalyst particles, and, between adjacent beds, a mixing device for mixing fluids, the mixing device comprising: (i) a substantially horizontal collection tray, (ii) a swirl chamber for mixing liquid arranged below the collection tray, having an upper end part that is in direct fluid communication with the upper surface of the collection tray and an outlet opening at its lower end, and (iii) a substantially horizontal distribution tray located below the swirl chamber, which distribution tray is provided with a plurality of openings or downcomers for downward flow of liquid and gas, in which reactor each reaction bed rests upon a support tray provided with a central opening and which reactor further comprises open-ended pipes extending through each central opening such that a vertical chute is formed from the reaction bed above the mixing device to the reaction bed below the mixing d
    Type: Grant
    Filed: December 11, 2001
    Date of Patent: July 4, 2006
    Assignee: Shell Oil Company
    Inventors: Jurjen Wietze Van Der Meer, Marjanne Clara Zonnevylle
  • Patent number: 6986846
    Abstract: The present invention provides a method and an apparatus for forming particles using supercritical fluid. The method includes the steps of mixing a load material with a first flow of a supercritical fluid in a first mixing chamber having a primary mixing device disposed therein to form a melt, transferring the melt from the first mixing chamber to a second mixing chamber having a secondary mixing device disposed therein, mixing the melt with a second flow of the supercritical fluid in the second mixing chamber to form a lower viscosity melt, expanding the lower viscosity melt across a pressure drop into an expansion chamber that is at a pressure below the critical pressure of the supercritical fluid to convert the supercritical fluid to a gas and thereby precipitate the load material in the form of particles.
    Type: Grant
    Filed: September 2, 2004
    Date of Patent: January 17, 2006
    Assignee: Ferro Corporation
    Inventors: Boris Y. Shekunov, Pratibhash Chattopadhyay, Jeffrey S. Seitzinger
  • Patent number: 6986832
    Abstract: The invention relates to a method and a mixer for mixing flows of a papermaking process. In the invention, a first flow is conveyed through a tube, and turbulence is generated in it by means of form parts located on the inner periphery of the tube. The mixing zone of the mixer comprises feed openings on the inner periphery of the tube for feeding a second flow from a feed channel outside the tube into the first flow, whereby the flows are mixed as a result of the turbulence generated by the form parts. According to a preferred embodiment of the invention, at least one form part comprises a feed opening.
    Type: Grant
    Filed: February 19, 2002
    Date of Patent: January 17, 2006
    Assignee: Metso Paper Inc.
    Inventors: Perttu Lamminen, Matti Hietaniemi, Juhani Sams, Kati Lindroos
  • Patent number: 6982064
    Abstract: Known static micromixers that work according to the principle of multilamination allow for a rapid mixing by diffusion. The invention provides a means for substantially increasing the throughput of known micromixers. To this end, the inventive micromixer for mixing two or more reactants comprises microstructures that define mixer cells. Each of said mixer cells is provided with a feeding chamber which adjoins at least two groups of digital channels. Said channels intermesh with the digital channels of the groups adjoining the feeding channels in a comb-like manner, thereby producing mixing zones]. Outlet ports are located above said mixing zones, said outlet ports extending perpendicularly to the digital channels and discharging the product. The inventive micromixer is especially useful for the large-scale production of mixtures, dispersions and emulsions.
    Type: Grant
    Filed: June 10, 2000
    Date of Patent: January 3, 2006
    Assignee: Institut fur Mikrotechnik Mainz GmbH
    Inventors: Wolfgang Ehrfeld, Frank Michel, Astrid Lohf, Volker Graeff
  • Patent number: 6942792
    Abstract: Three metal plate materials, each having penetration holes, are united together in this order as a set at such positions that penetration holes can penetrate through the three metal plate materials so as to form a mixing portion. A plurality of sets, each having the mixing portion, are integrated together at such positions that all of the penetration holes can penetrate through the respective sets of plate materials. The mixing portions of the respective sets are connected in parallel to one another.
    Type: Grant
    Filed: August 8, 2003
    Date of Patent: September 13, 2005
    Assignee: Shimadzu Corporation
    Inventor: Yoshiaki Aso
  • Patent number: 6942785
    Abstract: A system for automated treatment of fluids having interchangeable process modules (39, 40, 41, 42, 43), which are arranged next to each other, and which are respectively provided with a control unit and a fluid unit. The fluid unit is controlled by the control unit in order to carry out a module-specific process function during the treatment of the fluids. The control units are interconnected via a data bus (48), which is common to the process modules (39, 40, 41, 42, 43), and the fluid units are interconnected by a fluid bus (49) that has several channels. A fluid bus section is provided for at least one part of the channels inside each process module (e.g., 42). This section has fluid bus interfaces (52) at the ends thereof. A connection unit (51) is configured to be mounted between the respectively adjacent fluid bus interfaces (52) of two successive process modules (e.g., 41, 42) in at least two different mounting positions.
    Type: Grant
    Filed: August 13, 2003
    Date of Patent: September 13, 2005
    Assignee: Siemens Aktiengesellschaft
    Inventors: Thomas Bayer, Klaus-Dieter Fiebelkorn, Axel Gerlt, Joerg Hassel, Richard Mateman, Arno Steckenborn, Jeroen Wissink
  • Patent number: 6935772
    Abstract: Microfluidic devices capable of efficiently mixing two or more fluid are provided. Two or more microfluidic inlet channels defined in different sheets of material meet at an overlap region in fluid communication with an outlet channel. The channels are defined through the entire thickness of stencil sheets. The overlap region may include an aperture-defining spacer layer, and/or an impedance element, such as a porous membrane, adapted to distribute at least one fluid across the entire width of the outlet channel to promote reliable fluid mixing.
    Type: Grant
    Filed: May 21, 2003
    Date of Patent: August 30, 2005
    Assignee: Nanostream, Inc.
    Inventors: Christoph D. Karp, Stephen D. O'Connor, Paren P. Patel
  • Patent number: 6935768
    Abstract: The invention relates to a procedure and a micromixer for mixing at least two fluids. The aim of the invention is to reduce the mixing time of the micromixer compared to micromixers known to the art while maintaining high mixing quality and small structural dimensions. The inventive procedure is characterized by the following steps: a plurality of separated fluid currents of both fluids are brought together and alternately adjacent fluid lamellae of both fluids are formed: the combined fluid currents are carried away and a focused total fluid current is formed; the focused total fluid current is fed as fluid jet into an expansion chamber; and the resulting mixture is drawn off. The micromixer comprises a plurality of alternately adjacent fluid channels which open into an inlet chamber. A focusing channel is in fluid connection with said inlet chamber and opens into an expansion chamber.
    Type: Grant
    Filed: August 23, 2001
    Date of Patent: August 30, 2005
    Assignees: Institut fur Mikrotechnik Mainz GmbH, Mikroglas Chemtech GmbH
    Inventors: Holger Löwe, Jōrg Schiewe, Volker Hessel, Thomas Dietrich, Andreas Freitag
  • Patent number: 6910797
    Abstract: A mixing device includes a mixing chamber, inlet and outlet paths, and circulators adapted to change shape or temperature in response to electric current. The change in shape or temperature causes substances to circulate within the mixing chamber to form a mixture. The circulators include heating elements such as resistors, and/or piezoelectric devices or other devices. Mixing systems and methods also are disclosed.
    Type: Grant
    Filed: August 14, 2002
    Date of Patent: June 28, 2005
    Assignee: Hewlett-Packard Development, L.P.
    Inventor: Roberto Falcon
  • Patent number: 6907895
    Abstract: Disclosed is an apparatus and method for the mixing of two microfluidic channels wherein several wells are oriented diagonally across the width of a mixing channel. The device effectively mixes the confluent streams with electrokinetic flow, and to a lesser degree, with pressure driven flow. The device and method may be further adapted to split a pair of confluent streams into two or more streams of equal or non-equal concentrations of reactants. Further, under electrokinetic flow, the surfaces of said wells may be specially coated so that the differing electroosmotic mobility between the surfaces of the wells and the surfaces of the channel may increase the mixing efficiency. The device and method are applicable to the steady state mixing as well as the dynamic application of mixing a plug of reagent with a confluent stream.
    Type: Grant
    Filed: July 1, 2002
    Date of Patent: June 21, 2005
    Assignee: The United States of America as represented by the Secretary of Commerce
    Inventors: Timothy J. Johnson, David J. Ross, Laurie E. Locascio
  • Patent number: 6902313
    Abstract: A micro mixer for use in a microdevice which utilizes time-varying force fields to induce bulk fluid and/or sample component motion leading to homogenization of sample components. Time-varying force fields employed includes at least one of a physical displacement field, electrical field, pressure field or magnetic field to generate transverse forces which induce the mixing of samples within the micro mixer.
    Type: Grant
    Filed: August 7, 2001
    Date of Patent: June 7, 2005
    Assignee: University of California
    Inventors: Chih-Ming Ho, Patrick Tabeling, Yi-Kuen Lee, Joanne Helene Deval
  • Patent number: 6889924
    Abstract: A household appliance, in particular, a food processor, includes a drive unit installed in a housing, a container having a tool is placed on the housing at the point thereon provided with a output shaft. The tool is capable of being coupled to the output shaft when the container is placed in position. Placement of the container in the correct position is ensured by providing an element, fitting together with a counter-element provided on the container, in a region of the placement point on the housing. The elements engage one another when the container is placed on the housing.
    Type: Grant
    Filed: September 30, 2002
    Date of Patent: May 10, 2005
    Assignee: BSH Bosch und Siemens Hausgerate GmbH
    Inventors: Henrik Pavlovic, Jurij Pesec, Darko Rudez, Igor Zibret
  • Patent number: 6890093
    Abstract: Robust microfluidic mixing devices mix multiple fluid streams passively, without the use of moving parts. In one embodiment, these devices contain microfluidic channels that are formed in various layers of a three-dimensional structure. Mixing may be accomplished with various manipulations of fluid flow paths and/or contacts between fluid streams. In various embodiments, structures such as channel overlaps, slits, converging/diverging regions, turns, and/or apertures may be designed into a mixing device. Mixing devices may be rapidly constructed and prototyped using a stencil construction method in which channels are cut through the entire thickness of a material layer, although other construction methods including surface micromachining techniques may be used.
    Type: Grant
    Filed: January 11, 2002
    Date of Patent: May 10, 2005
    Assignee: Nanostream, Inc.
    Inventors: Christoph D. Karp, Joseph F. Covington
  • Patent number: 6878400
    Abstract: A method for continuously introducing a substance in liquid phase into plastics granules comprising: a) feeding a substantially continuous flow of the plastics granules to at least one substantially static spraying chamber, b) spraying the substance in liquid phase onto the plastics granules, c) passing the granules partially or totally coated by the substance in liquid phase by a substantially static mixing means supported in at leas one mixing chamber provided downstream of the spraying chamber, d) submitting the mixed granules to drying for a time sufficient to allow a substantially complete absorption of the substance in liquid phase by the granules.
    Type: Grant
    Filed: June 28, 2001
    Date of Patent: April 12, 2005
    Assignee: Pirelli Cavi e Sistemi S.p.A.
    Inventors: Giuseppe Colombo, Pierluigi Folcini, Giovanni Pozzati, Marcello Del Brenna
  • Patent number: 6877892
    Abstract: Robust microfluidic mixing devices mix multiple fluid streams passively, without the use of moving parts. In one embodiment, these devices contain microfluidic channels that are formed in various layers of a three-dimensional structure. Mixing may be accomplished with various manipulations of fluid flow paths and/or contacts between fluid streams. In various embodiments, structures such as channel overlaps, slits, converging/diverging regions, turns, and/or apertures may be designed into a mixing device. Mixing devices may be rapidly constructed and prototyped using a stencil construction method in which channels are cut through the entire thickness of a material layer, although other construction methods including surface micromachining techniques may be used.
    Type: Grant
    Filed: May 3, 2002
    Date of Patent: April 12, 2005
    Assignee: Nanostream, Inc.
    Inventor: Christoph D. Karp
  • Patent number: 6851846
    Abstract: Disclosed herewith is a microchip having a micromixer therein. The mixromixer employs a mixing or extracting structure having (1) a first flow pass provided at a first level of the microchip; (2) a second flow pass provided at a second level of the microchip, which is different from the first level; (3) a third flow pass having a plurality of sub flow passes separately layered at the first level and each having a first end and second end thereof, each sub flow pass being connected to one of the first and second flow passes at the first end thereof; and (4) a fourth flow pass, provided at the first level, connected to the second ends of the sub flow passes so that, at least connecting portions between the fourth flow pass and the sub flow passes of the third flow pass, an extending direction of the fourth flow pass is substantially identical to those of the sub flow passes.
    Type: Grant
    Filed: June 14, 2002
    Date of Patent: February 8, 2005
    Assignee: Minolta Co., Ltd.
    Inventors: Yasuhisa Fujii, Shigeo Yamashita, Yasuhiro Sando, Koji Yamamoto, Shunichi Hayamizu
  • Patent number: RE40407
    Abstract: A method for entraining and mixing gas with liquids within a conduit or drop structure, comprising the channeling of one or more liquid flows into spiral flows of predetermined radius (radii), reducing the predetermined radius (radii) to increase the centrifugal forces acting upon the spiral flow(s) as the spiral flow(s) enter the conduit, and allowing gas access to the conduit to mix with and entrain within the spiral flow within the conduit or drop structure. The method can facilitate the mixing of gas with one or more fluid flows and/or reduce the release of gas emissions from the fluid(s) into the surrounding environment.
    Type: Grant
    Filed: October 14, 2005
    Date of Patent: July 1, 2008
    Assignee: Vortex Flow, Inc.
    Inventor: Eugene M. Natarius