Plate Or Block Being Apertured, Notched, Or Truncated In Shape Patents (Class 366/340)
  • Patent number: 6379035
    Abstract: A primary object of the present invention is to provide a static-type mixing and stirring device which allows for reduction in size of the device and for substantial reduction in the costs of manufacturing the device, while at the same time lowering pressure loss and enhancing the mixing and stirring performance of the device. To achieve the object of the present invention, the static-type mixing and stirring device comprises a cylindrical case body, a plural number of disk-shaped elements—equipped with plural kinds of holes at prescribed intervals—combined and fitted in sequence into the case body, and joint metals removably fitted to the ends of the inlet and outlet of the body case.
    Type: Grant
    Filed: March 3, 2000
    Date of Patent: April 30, 2002
    Assignee: Fujikin Incorporated
    Inventors: Kenji Kubo, Eizo Sugino, Hisayoshi Mese, Shigenohu Saito, Takeshi Yasukochi, Katsutoshi Shoji
  • Publication number: 20010053108
    Abstract: Static mixer module, consisting of a disc which is provided with a multiplicity of orifices (6) and is structured on its front side and on its rear side by means of channels (4, 5), and in which the orifices (6) are made in the flanks (8) of the inlet channels (4) and open into the flanks (9) of the mixing channels (5). Furthermore, a mixer arrangement is described, which consists of at least two static mixer elements arranged one behind the other, at least one mixer element being a disc-shaped static mixer module. The mixer module and the mixer arrangement are used in pipelines and housings through which a flow passes.
    Type: Application
    Filed: March 24, 1999
    Publication date: December 20, 2001
    Inventors: PETER JAHN, HELMUT BROD, KLEMENS KOHLGRUBER
  • Patent number: 6321998
    Abstract: In the process for the continuous dispersion of at least one fluid A constituting the disperse phase and at least one continuous phase constituting the enclosing phase of a fluid B, at least one fluid stream A and at least one fluid stream B are fed into a dispersion apparatus and come into contact therein in a dispersion chamber.
    Type: Grant
    Filed: May 5, 1998
    Date of Patent: November 27, 2001
    Assignee: Bayer Aktiengesellschaft
    Inventors: Klaus Schubert, Wilhelm Bier, Gerd Linder, Erhard Herrmann, Bernd Koglin, Thomas Menzel
  • Patent number: 6305835
    Abstract: Apparatus and processes are provided for handling fluids in numerous industrial applications. Materials addition devices, including venturi hoppers, and other eductor assemblies, are joined in compact, horizontal, and/or vertical configurations, with one or more shearing devices, including, high and low velocity shearing devices individually, as well as, a combination high and low velocity shearing device. Pipe and valve configuration allow several alternate paths through or around such assemblies and devices, in alternate directions, including the option to backflow through the high velocity shearing device for the removal of obstructions. In the high velocity shearing devices provided, a special jet insert is provided, along with jet insert installation related apparatus, by which the jet insert is easily retained in, and removed from, the piping in the high velocity shearing device.
    Type: Grant
    Filed: December 8, 1998
    Date of Patent: October 23, 2001
    Inventors: Joseph Daniel Farrar, Jimmy Phillip Lavoie
  • Patent number: 6305834
    Abstract: A method and a device for producing a dispersed mixture from at least two phases. To do this, the first and the second phase are subdivided into split streams so that the split streams from the first phase are located on a first flat layer and the split streams from the second phase are located on a second flat layer, the split streams of the first phase inside the flat layer being fed onto the split streams of the second phase at an angle in order to bring about a dispersion and mixing process, wherein the flat layers are directly arranged on top of each other, and parallel to each other. The device consists of at least one base unit containing two foils into which a parallel assembly of grooves is inserted on one side of each foil. Both foils are configured in the base unit such that the sides of the foils fitted with grooves lie on top of each other and form an angle with each other.
    Type: Grant
    Filed: August 2, 1999
    Date of Patent: October 23, 2001
    Assignees: Forschungszentrum Karlsruhe GmbH, Bayer AG
    Inventors: Klaus Schubert, Wilhelm Bier, Gerd Linder, Erhard Herrmann, Bernd Klinksiek, Bernd Krumbach
  • Patent number: 6299657
    Abstract: In the reaction process, at least two educts A, B are divided by a system, assigned to each of them, of slit-like microchannels 1a, 1b into spatially separate fluid lamellae, which then emerge into a common mixing and reaction space 4. The fluid lamellae here have a thickness <1,000 &mgr;m, preferably <100 &mgr;m, at a width thickness ratio of at least 10. It is essential here that educts A, B can emerge as thin fluid lamellae 6a, 6b into the mixing/reaction space 4, each fluid lamella 6a of an educt A being led into the mixing/reaction space 4 in the immediate vicinity of a fluid lamella 6b of another educt B. The adjacent fluid lamellae 6a, 6b then subsequently mix by diffusion and/or turbulence. As a result, the mixing operation is accelerated substantially compared with conventional reactors. In the case of rapid chemical reactions, the formation of undesirable by-products or secondary products is largely prevented in this manner.
    Type: Grant
    Filed: October 15, 1999
    Date of Patent: October 9, 2001
    Assignee: Bayer Aktiengesellschaft
    Inventors: Klaus Schubert, Wilhelm Bier, Gerd Linder, Erhard Herrmann, Bernd Koglin, Thomas Menzel, Christine Maul
  • Patent number: 6281254
    Abstract: A microchannel apparatus includes a plural partition walls 4 formed as extensions of plural microchannels 1 toward a continuous phase, and a flow path 5 is formed between adjacent ones of the partition walls 4. A dispersed phase pumped into a continuous phase via each microchannel 1 generates nearly perfect spheres in the course of passing through the microchannel and the flow path 5 in between the partition walls 4, thereby producing emulsions comprising fine and homogenous microspheres.
    Type: Grant
    Filed: March 1, 1999
    Date of Patent: August 28, 2001
    Assignees: Japan as represented by Director of National Food Research Institute, Ministry of Agriculture, Forestry and Fisheries, Bio-oriented Technology Research Advancement Institution
    Inventors: Mitsutoshi Nakajima, Hiroshi Nabetani, Yuji Kikuchi, Christophe Largueze
  • Patent number: 6264900
    Abstract: A microstructures lamellae mixer comprising a guide component for supplying fluids to be mixed to a mixing chamber, the guide component being composed of a plurality of foils which are layered one above the other and into which microchannels are incorporated such that separate fluids supplied to the guide component are formed into spatially separated microstreams which then emerge adjacent to each other in a mixing chamber.
    Type: Grant
    Filed: May 5, 1998
    Date of Patent: July 24, 2001
    Assignees: Bayer Aktiengesellschaft, Forschungszentrum Karlsruhe GmbH
    Inventors: Klaus Schubert, Wilhelm Bier, Gerd Linder, Erhard Herrmann, Bernd Koglin, Thomas Menzel, Christine Maul
  • Patent number: 6258858
    Abstract: Cross-flow microchannel apparatus for producing emulsions includes a pump 9 and a pump 11 which are driven to respectively supply a continuous phase to a concave portion 4 via a supply pipe 10, a supply hole 6 and a supply port 18 and a dispersed phase to a space between the outside of a base 3 and the inside of a concave portion 2 formed in a case 1 via a supply pipe 12 and a supply hole 7. Then, by applying a predetermined pressure to the dispersed phase, the dispersed phase is formed into fine particles via a microchannels 21 and mixed with the continuous phase, thereby forming emulsions. The emulsions are withdrawn to a tank and so on via a withdrawal port 19, a withdrawal hole 8, and a withdrawal pipe 13 for emulsions.
    Type: Grant
    Filed: March 1, 1999
    Date of Patent: July 10, 2001
    Assignees: Japan as Represented by Director of National Food Research Institute, Ministry of Agriculture, Forestry and Fisheries, Bio-Oriented Technology Research Advancement Institution
    Inventors: Mitsutoshi Nakajima, Yuji Kikuchi, Takahiro Kawakatsu, Hideaki Komori, Toshikuni Yonemoto
  • Patent number: 6234206
    Abstract: Valve (1) has a pressurised movable valve cone (5), valve seat (6) and a valve housing (2) surrounding cone (5) and seat (6). Cone (6) is disposed such that a throttle occurs between them, constituting a homogenisation gap. The gap is concentrically disposed along the throttle.
    Type: Grant
    Filed: February 11, 2000
    Date of Patent: May 22, 2001
    Assignee: Tetra Laval Holdings & Finance S.A.
    Inventors: Rolf Malmberg, Rikard Hanson
  • Patent number: 6213453
    Abstract: A gasification auxiliary device for high pressure oil ejection is disclosed, especially, a multiple penetrating gasification auxiliary device. The device can be used to atomize oil molecules. The gasification auxiliary device includes an upper case, a lower case, and two banks of gasification blades. The two banks of gasification blades are alternatively arranged with one another. The gasification blades can be provided within the device, so that the lower half edges and upper half edges of alternative gasification blades do not have gasification holes and are tightly connected to the case. Alternatively, the gasification blades can be arranged within the device, so that a gap exists alternatively between the upper and lower edge of the gasification blades and the wall of the case. When oil under high pressure is ejected into the device, the oil molecules will pass through the holes or gaps and gasify.
    Type: Grant
    Filed: July 30, 1999
    Date of Patent: April 10, 2001
    Inventor: Ren-Sheng Ou
  • Patent number: 6207719
    Abstract: A continuous output system makes paper coating by combining an emulsifier with ASA particles having sizes in the low to sub-micron region. A turbine, pump, blender or other device exposes the ASA to a number of repeated episodes of high shear until the resulting ASA is in the form of particles having a mean average diameter in approximately the 1&mgr; range. A manifold provides the system piping in order to minimize the internal areas where ASA may build up. This manifold has a plurality of holes bored in a solid metal block so that each of the bores forms a short pipe which is only an inch or two in length in order to reduce the interior surface area of an ASA transport and conveyance system.
    Type: Grant
    Filed: August 19, 1998
    Date of Patent: March 27, 2001
    Inventor: Dennis G. Pardikes
  • Patent number: 6192939
    Abstract: A pneumatic apparatus and method for driving a microflow is disclosed. The microflow driving apparatus of this invention comprises an external pneumatic driving device that generates an array of airflows; an air gallery to accept airflows of said pneumatic driving device and to generate a suction force and an exclusion force; and a fluid channel connected with said air gallery to allow a fluid to flow inside it. In the air gallery, a trapezoid block is provided to generate an air circle from at least one of said airflows. An open gap is provided in the fluid channel at the connection of the air gallery and the fluid channel. When different combinations of airflows are introduced into the air gallery, a suction force or an exclusion force is generated to drive the reaction fluid inside the fluid channel to proceed, retreat or pause. A method using the apparatus for driving a microflow is also disclosed.
    Type: Grant
    Filed: July 1, 1999
    Date of Patent: February 27, 2001
    Assignee: Industrial Technology Research Institute
    Inventors: Nan-Kuang Yao, Yue-Min Wan, Chi-chen Chen, Lung-Yu Hung, Shin-Hwan Wang, Si-Wei Chang
  • Patent number: 6190034
    Abstract: A micro-mixer is disclosed having at least one mixing point which is connected to an inlet channel arrangement having at least two inlet channels and to an outlet channel arrangement, and a mixing method is disclosed for at least two fluids which are supplied from different directions. With this mixer and method it is intended to achieve a rapid and predeterminable mixing of the fluids. For that purpose, a separating element which extends into a region of the mixing point in which the inlet channels run parallel to one another is provided. By this means the fluids can be kept separate from one another until their flow speeds virtually coincide in respect of value and direction. Only then are they brought into contact with one another.
    Type: Grant
    Filed: November 10, 1998
    Date of Patent: February 20, 2001
    Assignee: Danfoss A/S
    Inventors: Claus Rye Nielsen, Jens Anders Branebjerg, Peter Gravesen, Poul Dyhr-Mikkelsen, Niels Gade
  • Patent number: 6186179
    Abstract: A flow conditioning plate for interposition in a flow line has a pattern of apertures which introduces a flow irregularity characteristic of a commonly encountered irregular flow in a plant, such as the disturbance introduced by one or more junctions or fittings in the upstream flow path. The apertures may introduce a specific flow distribution, asymmetry of flow profile or swirl component, and these may be tuned to simulate a plant condition that occurs downstream of one or more bends, elbows or T junctions. The disturbance persists, or evolves in a known way for a well defined distance along the flow path to simulate field flow conditions, and a flow meter is tested or calibrated in the disturbed segment, preferably at a defined position, under known flow to produce a calibration table. The meter may then be later installed to measure the irregular flow in an unconditioned flow line at a plant.
    Type: Grant
    Filed: September 7, 1999
    Date of Patent: February 13, 2001
    Assignee: Panametrics, Inc.
    Inventor: James A. Hill
  • Patent number: 6186660
    Abstract: Microfluidic devices, systems and methods of using same which incorporate channels where some portion or all of the channels have aspect ratios less than 1. Devices with such channel dimensions are optionally configured to provide uniform flow rates through the channels.
    Type: Grant
    Filed: July 26, 1999
    Date of Patent: February 13, 2001
    Assignee: Caliper Technologies Corp.
    Inventors: Anne R. Kopf-Sill, John Wallace Parce
  • Patent number: 6149293
    Abstract: The invention features an emulsifying module comprising a cylindrical body (1) with a direct input block (5) or mixing block (4), at one of its ends, and an adjustable output block (3) at its other end. The body (1) contains one or more hollow cylindrical cartridges (8) allowing the mixture to pass through the cartridge from one end to the other. The cartridges (8), linked with one another and with the end blocks of the tubular body (1) via resilient spring linking mechanisms (14 to 18), each contain a plurality of vibrating discs (24) slidingly mounted on a hollow central axle (25). The hollow central axle (25) has a plurality of oscillating discs which cover and uncover lateral outlets provided in the axle to facilitate mixing. This invention is useful for emulsifying numerous liquid or gas products, in particular greasy liquid products, fuels, motor fuels, oils in various applications, heating, energy, compound products, and engines.
    Type: Grant
    Filed: November 18, 1998
    Date of Patent: November 21, 2000
    Inventor: Guy C. Pavese
  • Patent number: 6145544
    Abstract: The flow conditioner for a gas transport pipe comprises at least one perforated plate disposed essentially perpendicularly to the axis XX' of the pipe and comprising a central hole and sets of additional holes that are regularly distributed over at least three concentric rings centered on the axis of the pipe so as to define a perforated plate that is axially symmetrical. Within any one ring all of the circular holes are of the same diameter d.sub.1, d.sub.2, d.sub.3. On going away from the central hole and on passing from any one ring to an adjacent concentric ring, the diameter of the holes changes alternately in a reduction direction and in an increase direction. Each ring has a number of holes that is equal to or greater than six. The perforated plate is advantageously associated with a porous plate situated upstream from the perforated plate and parallel thereto.
    Type: Grant
    Filed: February 16, 1999
    Date of Patent: November 14, 2000
    Assignee: Gaz de France
    Inventors: Dominique Dutertre, Vincent De Laharpe
  • Patent number: 6135632
    Abstract: A static mixing dispenser provides a circuitous flowpath for plural components to be mixed between the inlet and the outlet of a conduit. Coextensive exterior sheets forming a tube can be attached to an interior sheet having openings communicating through the interior sheet. The sheets are sealed together at interior obstructions, forming mixing stages that subdivide and recombine the stream of material. The interior obstructions comprise sheets having openings formed through the thickness of each sheet. The openings each have a flap of sheet material, the partial detachment of which from the sheet forms the opening, leaving a connection of limited area around which the flap can pivot.
    Type: Grant
    Filed: June 16, 1999
    Date of Patent: October 24, 2000
    Inventor: Theodore R. Flint
  • Patent number: 6114415
    Abstract: A batchwise or continuous process for producing coagulated particles of polymer latex, involves partially or completely filling at least one receptacle with a fluid A which can be water, a polymer latex emulsion or a coagulant solution, the receptacle being equipped with baffles containing at least one orifice, injecting into the receptacle at least one fluid other than the fluid of the preceding stage, the injected fluid being a polymer latex emulsion and/or a coagulant solution, and in then creating and maintaining within the receptacle an oscillatory flow or an impulsive flow, in conjunction with the formation of eddies or of vortices.
    Type: Grant
    Filed: June 3, 1998
    Date of Patent: September 5, 2000
    Assignee: Elf Atochem, S.A.
    Inventors: Chris Bertelo, Laurent Gervat, Jerome Laffont, Malcolm Robert Mackley, Gilles Meunier
  • Patent number: 6106146
    Abstract: The invention relates to a method for mixing and/or thermal homogenization of at least one free-flowing fluid of plastic and/or natural substances, in which the fluid is distributed into a layer (34), the width (36) of which transversely to the conveyance direction (35) of the fluid is greater by a multiple than its thickness (33), and individual partial areas lying in the conveyance direction (35) of the fluid adjacent to one another, in cross-sectional planes in succession in the conveyance direction (35) and aligned vertically to the conveyance direction (35), have a different cross-sectional surface. Respective partial areas extending parallel in the conveyance direction (35) and directly adjacent to one another of the cohesive layer (35) are differently spatially deformed and a cross-sectional surface in the partial area is greater than in relation to a greater flow path length between two cross-sectional planes with a rectilinear connection in the conveyance direction (35).
    Type: Grant
    Filed: June 29, 1998
    Date of Patent: August 22, 2000
    Assignee: C.A. Greiner & Sohne Gesellschaft m.b.H.
    Inventors: Gunter R. Langecker, Purstinger Franz
  • Patent number: 6082891
    Abstract: In a static micromixer a flow guide structure consisting of a stack of foils provided with passages formed into alternate foils so as to extend between a mixing chamber at one end of the flow guide structure and different admission chambers at the opposite end of the flow guide structure, the passages are curved so that they are all parallel at their exit ends adjacent the mixing chamber and, at their entrance ends, the flow guide structure has face areas which are inclined with respect to the exit end face of the flow guide structure at such an angle that the curved passages have all about the same length.
    Type: Grant
    Filed: April 17, 1998
    Date of Patent: July 4, 2000
    Assignees: Forschungszentrum Karlsruhe GmbH, Bayer AG
    Inventors: Klaus Schubert, Wilhelm Bier, Erhard Herrmann, Thomas Menzel, Gerd Linder
  • Patent number: 6073975
    Abstract: A hollow body and method for making the same are proposed for a sanitary fitting such as a mixing valve for hot and cold water lines. The hollow body may be fabricated as a simple sheet material part and contains water guides in its interior. The water guides are produced by inserting a simple sheet material part into the interior of the hollow body. The sheet material part is fixed in place and subsequently welded to the inner side of the hollow body. Welding can be done more particularly with the aid of a laser enabling the weld to be made from the outer side of the hollow body, as a result of which, welds can be produced at positions which would otherwise not be accessible.
    Type: Grant
    Filed: January 20, 1998
    Date of Patent: June 13, 2000
    Assignee: Hansgrohe AG
    Inventor: Dieter Katzer
  • Patent number: 6042263
    Abstract: A mechanical device that dynamically, through the change in velocity-caused sheer planes, effectively produces a more homogenized mixed phase flow stream downstream from a non-homogenized phase concentrated stream. The device is unique in that it does not rely on physical contact with mechanical surfaces of each phase in the stream to re-direct the phases into a re-distributed mixture. This effect is generated dynamically with the pressure differentials caused by sheer planes and dynamic recirculation zones at different velocities. This differential pressure gradient is developed by inserting a pre-designed non-aerodynamic symmetrical device in a mixed phase flow path to produce a re-circulating flow disrupting the laminar flow characteristics. The diffuser design is based on a proprietary calculation methodology based on the physical arrangement of the stream containment. This arrangement may be rectangular, conical, round, oval, multi-sided or annular in configuration.
    Type: Grant
    Filed: April 29, 1998
    Date of Patent: March 28, 2000
    Inventors: Marvin R. Mentzer, Diane Mentzer, legal representative
  • Patent number: 6027241
    Abstract: A stationary material mixing apparatus for mixing various components in a fluid stream. The mixing apparatus is in the form of a cone-shaped module containing a plurality of openings therethrough where within the openings are located mixing elements which induce a rotational angular velocity to the fluid stream. As preferred embodiments, the mixing apparatus, located within a conduit, can also contain a biscuit with further mixing elements and a series of either helically wound tubes or vanes further enhancing the mixing operation.
    Type: Grant
    Filed: April 30, 1999
    Date of Patent: February 22, 2000
    Assignee: Komax Systems, Inc.
    Inventor: Leonard Tony King
  • Patent number: 5984519
    Abstract: In a fine particle producing device, particles of a substance contained in a fluid are caused to collide with each other under extremely high pressure, whereby the particles are emulsified, dispersed or reduced to finer particles in the fluid in an instant. One of the blocks mounted in a cylindrical sealed casing has a pair of curved channel portions for guiding converging high-speed fluid streams and a turbulence pocket formed at a position where the curved channel portions are joined for temporarily holding fluid turbulence caused by collision of the high-speed fluid streams.
    Type: Grant
    Filed: December 22, 1997
    Date of Patent: November 16, 1999
    Assignees: Genus Corporation, Hakusui Tech Co., Ltd.
    Inventors: Tadao Onodera, Chikara Kannari, Akikazu Koyano, Yoshihiro Furukawa, Kazutoshi Mitake, Fumio Yasuda, Fuminori Miyake, Fusamitsu Fujishima
  • Patent number: 5971604
    Abstract: A mixer for a fluid flow in a pipe connection, especially for homogenizing a multiphase flow, has a housing to be inserted in the pipe connection for the fluid to flow through. In the housing there are at least one and preferably two or more adjoining and individually displaceable regulating elements having cooperating wall portions with flow passages. At an upstream side radial flow passages cause the fluid to converge into a central chamber. In the cooperating wall portions, a number of flow channels can be aligned or misaligned with one another and/or the inlet and outlet openings to regulate and control flow by movement of the regulating elements. The regulating elements also define a full cross-section opening at 90.degree. to the flow passages, which can clear the passage between the inlet and outlet for passage of a pipe pig.
    Type: Grant
    Filed: March 11, 1996
    Date of Patent: October 26, 1999
    Assignee: Sinvent A/S
    Inventors: Harald Linga, Gisle Onsrud, Jan Richard Sagli
  • Patent number: 5971601
    Abstract: A method and apparatus for producing a liquid disperse system in a flow-through channel is described. The flow-through channel has first and second chambers. The liquid in the first chamber is maintained at a steady pressure P.sub.1. The liquid is passed through a localized flow constriction creating cavitation liquid jets that flow into the second chamber. The dynamic pressure of the liquid jets is govern by the equation .rho..nu..sup.2 /2.gtoreq.0.15 P.sub.1 where .rho. is the density of the cavitation liquid jet and .nu. is the velocity of the cavitation jet. Cavitation bubbles are produced in the cavitation liquid jets between 1.times.10.sup.-6 m and 1.times.10.sup.-2 m. The pressure in the second chamber P.sub.2 is maintained such that P.sub.1 /P.sub.2 is .ltoreq.9.8. The liquid disperse system is produced by the collapsing of cavitation bubbles under static pressure P.sub.2 in the second chamber. The pressure P.sub.
    Type: Grant
    Filed: February 6, 1998
    Date of Patent: October 26, 1999
    Inventor: Oleg Vyacheslavovich Kozyuk
  • Patent number: 5957579
    Abstract: The present invention is generally directed to improved microfluidic devices, systems and methods of using same, which incorporate channel profiles that impart significant benefits over previously described systems. In particular, the presently described devices and systems employ channels having, at least in part, depths that are varied over those which have been previously described. These varied channel depths provide numerous beneficial and unexpected results.
    Type: Grant
    Filed: September 30, 1998
    Date of Patent: September 28, 1999
    Assignee: Caliper Technologies Corp.
    Inventors: Anne R. Kopf-Sill, John Wallace Parce
  • Patent number: 5944419
    Abstract: The mixer arranged in a tube contains at least one or a plurality of mixing elements which have two axial sections each. To each section is assigned at least one separating flange subdividing the section. The separating flanges of the two sections cross one another. The tube cross section is divided into subareas by the separating flanges. At the boundary between the sections both open subareas and subareas covered by deflection plates are provided. On both sides of each separating flange is placed exactly one open subarea. With respect to successive mixing elements, neighboring separating flanges cross each other as well, and the open subareas are arranged so as to be offset with respect to one another.
    Type: Grant
    Filed: June 7, 1996
    Date of Patent: August 31, 1999
    Assignee: Sulzer Chemtech AG
    Inventor: Felix Streiff
  • Patent number: 5921678
    Abstract: A micromachined, high Reynolds number, sub-millisecond liquid mixer for the study of chemical reaction kinetics. This bulk micromachined silicon mixer is capable of initiating and quenching chemical reactions in intervals as short as 100 .mu.s. The mixer chip contains two tee mixers connected by one channel which serves as a reaction chamber. Each tee mixer consists of opposing channels where liquids meet head-on and exit into a third channel forming the base of a "T".
    Type: Grant
    Filed: February 5, 1998
    Date of Patent: July 13, 1999
    Assignee: California Institute of Technology
    Inventors: Amish Desai, Xing Yang, Yu-Chong Tai, Elaine Marzluff, Dirk Bockenkamp, Stephen Mayo
  • Patent number: 5904424
    Abstract: A device for mixing very small quantities of liquids comprises at least one mixing element with at least one inlet channel and at least one outlet channel; at least two microchannels issue from the inlet channel, all such issuing channels lying in a single branching plane. The microchannels are led to a confluence element in a plane which is rotated 90 degrees in relation to the branching plane. The mixer element is arranged in the planar surface of a substrate, the planar surface being hermetically sealed by a covering. The invention concerns a device for mixing liquids in which mixing is effected by the flow of the liquids to be mixed through narrow channels.
    Type: Grant
    Filed: September 30, 1997
    Date of Patent: May 18, 1999
    Assignee: Merck Patent Gesellschaft Mit Beschrankter Haftung
    Inventors: Norbert Schwesinger, Thomas Frank
  • Patent number: 5887977
    Abstract: An apparatus to mix various liquids in fluid streams includes an outer casing with a plurality of fluid inlets and a fluid outlet, and a plurality of discs bearing a plurality of different holes or groove arrangements stacked one upon another between the fluid inlets and outlet to induce a rotational angular velocity to the fluid streams.
    Type: Grant
    Filed: September 30, 1997
    Date of Patent: March 30, 1999
    Assignee: Uniflows Co., Ltd.
    Inventor: Hideyuki Morikawa
  • Patent number: 5863129
    Abstract: A series of flow control mixing devices used in a mixing chamber in a spray gun, or the like, to more thoroughly mix multi-components in a mixing chamber, consists of three different types of cylindrical mixing elements sealingly held in the chamber. Each of the mixing elements contains a pair of inlets, a central chamber and an outlet, connected together so as to mix entering components therein, and passing these mixed components to the outlet. Two of the types of mixing elements include a mixing reservoir or chamber formed on a top surface thereof. A plurality of second mixing elements are secured over a first or downstream mixing element, and a final or third mixing element is provided upstream of the other elements. The first element includes a spacing member on the lower surface, and all the mixing elements include O-ring seals held in grooves formed on the outer periphery thereof.
    Type: Grant
    Filed: January 5, 1998
    Date of Patent: January 26, 1999
    Assignee: Gary A. Smith
    Inventor: Gary L. Smith
  • Patent number: 5842787
    Abstract: The present invention is generally directed to improved microfluidic devices, systems and methods of using same, which incorporate channel profiles that impart significant benefits over previously described systems. In particular, the presently described devices and systems employ channels having, at least in part, depths that are varied over those which have been previously described. These varied channel depths provide numerous beneficial and unexpected results.
    Type: Grant
    Filed: October 9, 1997
    Date of Patent: December 1, 1998
    Assignee: Caliper Technologies Corporation
    Inventors: Anne R. Kopf-Sill, John Wallace Parce
  • Patent number: 5839828
    Abstract: A static mixer which is adapted for disposition in a pipe having a fluid flow direction including a circumferential flange radially inwardly extending from the internal pipe surface and in turn having at least a pair of opposed flaps extending therefrom and inclined in the direction of the fluid flow.
    Type: Grant
    Filed: May 19, 1997
    Date of Patent: November 24, 1998
    Inventor: Robert W. Glanville
  • Patent number: 5803600
    Abstract: In a static micromixer for mixing at least two fluids including a flow guide structure having a longitudinal axis extending in the general flow direction of the fluids through the guide structure, separate fluid admission areas disposed at the entrance end of the flow guide structure and a mixing chamber disposed at the exit end of the flow guide structure, the flow guide structure is formed by foils of a thickness of about 100 .mu.m disposed on top of each other and having parallel grooves extending in one foil from one of the fluid admission areas at an angle with respect to the general fluid flow direction through the flow guide structure to the mixing chamber and in an adjacent foil from another of the fluid admission areas to the mixing chamber such that in the mixing chamber the fluid exits of different foils are disposed adjacent each other, the grooves having a width of less than 250 .mu.m and being spaced from each other by less than 70 .mu.
    Type: Grant
    Filed: October 9, 1996
    Date of Patent: September 8, 1998
    Assignee: Forschungszentrum Karlsruhe GmbH
    Inventors: Klaus Schubert, Wilhelm Bier, Gerd Linder, Dieter Seidel
  • Patent number: 5782557
    Abstract: Described herein is an improved homogeniz head in which a variable orifice can be readily provided. The head (10) comprises a casing section (12) and a plug section (14). The casing section (12) has an internally threaded portion (120) which has a series of notches (126) formed in the threads (124). The plug section (14) has an externally threaded portion (14) which has a series of flats (154) formed on the threads (152). The two threaded portions (120, 140) are engaged and the cooperation of the notches (126) and flats (154) define homogeniz orifices through which the material being homogeniz passes. The orifices so formed are variable in size depending on the relative positioning of the notches (126) relative to the flats (154).
    Type: Grant
    Filed: April 16, 1996
    Date of Patent: July 21, 1998
    Assignee: Eastman Kodak Company
    Inventor: David John Young
  • Patent number: 5779361
    Abstract: There is provided a new static mixer with a low pressure loss and a high agitating/mixing efficiency. The mixer comprises in the midst of a fluid passage a mixing body having a larger diameter than the fluid passage. The mixing body has a mixing body cylinder portion, an inlet hollow portion having an inlet port fitted to the cylinder portion, and a outlet hollow portion having an outlet port. An impingement cylinder having an diameter larger than a diameter of the outlet port is disposed within the mixing body such that its opening is positioned in a confronting relation with the inlet port. A plurality of recesses are provided at at least one of an inner side portion of bottom of the impingement cylinder, an inner surface portion of the hollow inlet port, an inner surface portion of the hollow outlet port, an inner circumferential portion of a cylindrical portion of the impingement cylinder, and an inner circumferential surface portion of the cylindrical portion of the mixing body.
    Type: Grant
    Filed: May 12, 1997
    Date of Patent: July 14, 1998
    Assignee: Shinyou Technologies, Inc.
    Inventor: Hikoroku Sugiura
  • Patent number: 5775805
    Abstract: A container for mixing two or more kinds of granular medicines or the like together without breaking their granular shapes. Prisms are arranged in the container in lines on the bottom in such a manner that their vertical edges are directed toward the relative side walls of the container and the prisms arranged in each line are located at intermediate positions between the adjacent prisms arranged in the next line. When the container is inclined, objects to be mixed together, which are inserted in the container, travel on the bottom of the container and are divided into two flows by an edge of each of the prisms arranged in a line, and the objects to be mixed together which flow along opposed sides of each of the prisms are joined together in the intermediate portions between the adjacent prisms, and the joined objects are again divided into two flows by an edge of each of the prisms arranged in the next line. The objects are mixed together by repeating such an action.
    Type: Grant
    Filed: January 30, 1997
    Date of Patent: July 7, 1998
    Assignees: Takamasa Shirai, Mitsumasa Furuya
    Inventor: Mitsumasa Furuya
  • Patent number: 5709468
    Abstract: Steam quality at both outlets of an impact T-Junction is equalized by a static mixer having corrugated lamella plates immediately adjacent the inlet leg to the junction causing substantial homogenization of the liquid and vapor phases of wet steam entering the junction so that the steam exiting both outlet legs of the junction will have substantially the same quality as the steam entering the junction.
    Type: Grant
    Filed: June 19, 1995
    Date of Patent: January 20, 1998
    Assignee: Texaco Group, Inc.
    Inventors: Edward Anderson Woerheide, James Raymond Stoy, Mark Timothy Rubel
  • Patent number: 5697403
    Abstract: The object of the present invention is to provide a device to make flow uniform in a denitrification system, which can achieve a predetermined flow regulation effect with low pressure loss independently of the gas flow rate. According to the present invention, the device installed on the upstream side of a chemical injection means for the denitrification system is composed of at least one perforated plate 11, and the perforated plate 11 can be turned by a rotating shaft 10 or 10a from the closed position where the gas flow path is closed to the open position where the gas flow path is opened or vice versa.
    Type: Grant
    Filed: July 7, 1994
    Date of Patent: December 16, 1997
    Assignee: Mitsubishi Jukogyo Kabushiki Kaisha
    Inventors: Toshiyuki Onishi, Atsushi Morii, Shigeyuki Nishijima
  • Patent number: 5685639
    Abstract: A juice mixing nozzle, which provides for the mixing of juice concentrate with water, includes a head which receives a manifold, a diffuser, and a cap to enclose the head. A supply of water, concentrate and air are directed through the cap and manifold into a mixing area where the water velocity is greatly increased to provide a "slicing" action to cut the concentrate and blend it with the water to make juice. After mixing, the juice is deflected by the diffuser to reduce the velocity thereof. The head also has a collection area to further reduce the velocity of the juice and minimize the splashing of the juice as it exits the head. The unique mixing action provided by the juice mixing nozzle allows for a mixing ratio of about five parts water to about one part concentrate.
    Type: Grant
    Filed: April 8, 1996
    Date of Patent: November 11, 1997
    Assignee: ABC Dispensing Technologies Inc.
    Inventor: Thomas S. Green
  • Patent number: 5589400
    Abstract: The method of distributing biological material suspended in a liquid sample comprises the steps of directing the liquid sample into a centrifuge sample chamber along a tortuous path of vertically spaced surfaces in the chamber, each of the surfaces being in communication with a discharge opening from the chamber to one surface of the microscope slide, continuing to direct the sample into the chamber until some of the biological material is deposited on portions of at least one of the surfaces and centrifuging the sample chamber whereby the biological material on each of the surfaces of the chamber passes through the discharge opening on the one surface of the slide.
    Type: Grant
    Filed: August 18, 1995
    Date of Patent: December 31, 1996
    Assignee: Shandon, Inc.
    Inventor: William J. Hayes
  • Patent number: 5570822
    Abstract: A static mixing nozzle used with a dispenser system thoroughly mixes one or more liquids. The static mixing nozzle has an insert having a housing with a plurality of baffles arranged in a staggered and alternating pattern throughout the passage. The baffles cause turbulence which mixes the liquid. Static mixing nozzles with different numbers of baffles may be used in the dispenser system to accommodate the different types of concentrates and syrups which may be used. The insert is removable and may be formed in parts which can be easily separated and cleaned. The insert has a ridge with an outer diameter greater than that of the nozzle, thus allowing the insert to be manually removed.
    Type: Grant
    Filed: January 23, 1995
    Date of Patent: November 5, 1996
    Assignee: Jet Spray Corp.
    Inventors: Edward S. LeMarbe, Sao Van Nguyen, Paul Cox
  • Patent number: 5564827
    Abstract: The device for the homogenization of high-viscosity fluids comprises static mixing elements (11, 12) and possibly filter elements (6). These elements of the device are arranged in a sleeve (13) along the sleeve axis (15). According to the invention the sleeve is composed of several parts; the elements of the device are monolithic structural members (10, 20; 60) and all or a plurality of these structural members have flange-like or nose-like parts (4; 4a, 4b). With these parts the structural members engage so as to anchor in the sleeve region between sleeve parts and form, at the same time, parts of the sleeve. The device according to the invention is provided, for instance, as a mixing head (1) in the nozzle of an injection molding machine or as a melt mixer of an extruder.
    Type: Grant
    Filed: April 27, 1995
    Date of Patent: October 15, 1996
    Assignee: Sulzer Chemtech AG
    Inventor: Arno Signer
  • Patent number: 5547281
    Abstract: An apparatus for fluid flow communication is disclosed which comprises a substantially tubular member having first and second opposite end portions; a first end wall secured to and closing the first end portion of said substantially tubular member wherein the first end wall has at least one first aperture extending therethrough; a second end wall secured to and closing the second end portion of the substantially tubular member wherein the second end wall has at least one second aperture extending therethrough; an intermediate wall disposed within the substantially tubular member intermediate the first and second end walls and having a circumferential outer edge; and support means disposed within the substantially tubular member for fixedly securing the intermediate wall relative to the inner surface of the substantially tubular member whereby the circumferential outer edge of the intermediate wall and the inner surface of the substantially tubular member define a substantially annular passage.
    Type: Grant
    Filed: October 11, 1994
    Date of Patent: August 20, 1996
    Assignee: Phillips Petroleum Company
    Inventor: John R. Brooks
  • Patent number: 5538344
    Abstract: The invention relates to a device (2) designed and adapted to bring an in per se known mixing body (11) to correspond to a fluid flow area which e.g. is defined by a pipeline (1,3) wherein a two-phase fluid may flow, said fluid being desired to be mixed in connection with sampling (4), and to withdraw the mixing body (11) easily and rapidly in order to release said fluid flow area. For this purpose, the device according to the invention comprises a valve housing (6) formed for fluid-tight connection to said pipeline in an area of two diametrally opposite openings (1', 1") of the pipeline, enclosing said openings. Within the valve housing (6), a sluice body (5) carrying said mixing body (11) has been displaceably arranged. The sluice body (5) and thus the mixing body (11) is displaceable between two main positions. In one main position, the mixing body (11) has been brought to correspond with said fluid flow area.
    Type: Grant
    Filed: April 19, 1994
    Date of Patent: July 23, 1996
    Assignee: Petrotech AS
    Inventor: Bj.o slashed.rn Dybdahl
  • Patent number: 5531831
    Abstract: A static blending device for continuously blending particulate matter for even dispersion onto a substrate, wherein blending can be achieved automatically by gravity flow of the material. The static blending device includes an inlet for receiving particulate matter and an outlet for dispensing particulate matter and a dispersing section provided between the inlet and the outlet that is divided into a first compartment and a second compartment. The first and second compartment are each preferably divided into a manifold cavity and a transfer section by a manifold plate with multiple manifold openings that is positioned on an angle within each compartment.
    Type: Grant
    Filed: December 12, 1994
    Date of Patent: July 2, 1996
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Kenneth W. Sweeney, Harold G. Converse
  • Patent number: RE36969
    Abstract: The static mixing element in a flow channel (7) has at least two deflectors (30) disposed on mountings (20) at a distance from the channel wall. The deflectors form an angle W of from 10.degree. to 45.degree. to the main flow direction Z. They have different orientations and the projection FZ of the deflectors in the main flow direction amounts to from 5% to 50% of the channel cross-section F. Cross-flows providing very efficient transverse mixing are therefore produced in a simple manner. When dispensing tubes (20, 21) are used as mountings a very effective mixing device is provided.
    Type: Grant
    Filed: December 10, 1996
    Date of Patent: November 28, 2000
    Assignee: Sulzer Brothers Limited
    Inventors: Felix Streiff, Markus Fleischli