Plural Injectors Patents (Class 366/173.1)
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Publication number: 20020101782Abstract: An apparatus and method for mixing at least two reactants is taught wherein a first reactant is delivered to a reaction zone through a first annular flow path and a second reactant is delivered to the reaction zone through a second annular flow path. The first and second annular flow paths are concentric with one another and the two reactants intermix with one another in the reaction zone. There is a rotating disc having a surface, defining one boundary of the reaction zone. The flow of the first and second reactants across the rotating disc and through the reaction zone is generally radial and has a residence time in the reaction zone of not more than about 100 msec, and preferably not more than about 50 msec. The reaction zone resides in a main reactor vessel and there is a driven agitator residing in the main reactor vessel to stir the contents thereof.Type: ApplicationFiled: November 6, 2001Publication date: August 1, 2002Inventors: Dirk J. Hasberg, Rajesh V. Mehta, Michael Bryan, Ramesh Jagannathan
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Patent number: 6390661Abstract: A rapid discharge multiple material delivery molding system includes a feed assembly having an upper portion, a movable middle portion and a lower portion. A drive is mounted between the middle portion and the lower portion to drive the middle portion and simultaneously control the intake and discharge of a fluid material from each of a plurality of fluid delivery containers. Each fluid delivery container is specifically sized to contain a predetermined volume of fluid material. By attaching a plurality of variously sized fluid delivery containers to the lower portion, an exact volume of each fluid material is dispensed simultaneously upon a downward stroke of the middle portion.Type: GrantFiled: September 15, 2000Date of Patent: May 21, 2002Assignee: Masco CorporationInventors: Gerard Jay Bellasalma, Joon Taek Kim
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Patent number: 6361202Abstract: A static mixer for a viscous liquid for use in a chemical mechanical polishing process is provided. The static mixer is constructed of an elongated cylindrical tank, an elongated cylindrical mixing sleeve having a multiplicity of mixing apertures therethrough situated inside the tank, a plurality of curvilinear feed tubes situated at a top of the tank cavity for feeding a mixture of a viscous liquid and a solvent into the tank cavity, a spiral plate mounted on the interior surface of the tank wall extending continuously from a top wall to a bottom wall of the tank cavity, and an outlet tube that is situated at the bottom of the tank cavity inside the mixing sleeve for outputting a mixture.Type: GrantFiled: December 1, 2000Date of Patent: March 26, 2002Assignee: Taiwan Semiconductor Manufacturing Company, LtdInventors: Hang-Chang Lee, Long Chun Tsai
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Publication number: 20010055242Abstract: A micro-electromechanical system and method for continuous laminar fluid mixing. An embodiment of the invention described in the specification includes a mixing channel, a first delivery channel that is connected to the mixing channel, and a second delivery channel that is connected to the mixing channel. A first pump mechanism produces pulses in the first delivery channel. A second pump mechanism produces pulses in the second delivery channel. The first pulsed fluid stream and the second pulsed fluid stream merge in the mixing channel to form a mixed fluid. The pulses in the fluids operate to distort the interface between the fluids to facilitate diffusion between the fluids.Type: ApplicationFiled: May 30, 2001Publication date: December 27, 2001Inventors: Ajay Deshmukh, Dorian Liepmann
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Publication number: 20010038574Abstract: A device for mixing at least two liquids has a first container for metering the volume of a first liquid and a second container larger than the first container, wherein the first container is arranged in the second container. The second container is fillable with the first liquid and a second liquid.Type: ApplicationFiled: December 22, 1998Publication date: November 8, 2001Applicant: ROBERT BOOSInventors: ROBERT BOOS, JURGEN FUNKHANEL
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Patent number: 6281254Abstract: 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: GrantFiled: March 1, 1999Date of Patent: August 28, 2001Assignees: Japan as represented by Director of National Food Research Institute, Ministry of Agriculture, Forestry and Fisheries, Bio-oriented Technology Research Advancement InstitutionInventors: Mitsutoshi Nakajima, Hiroshi Nabetani, Yuji Kikuchi, Christophe Largueze
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Cross-flow microchannel apparatus and method of producing or separating emulsions making use thereof
Patent number: 6258858Abstract: 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: GrantFiled: March 1, 1999Date of Patent: July 10, 2001Assignees: Japan as Represented by Director of National Food Research Institute, Ministry of Agriculture, Forestry and Fisheries, Bio-Oriented Technology Research Advancement InstitutionInventors: Mitsutoshi Nakajima, Yuji Kikuchi, Takahiro Kawakatsu, Hideaki Komori, Toshikuni Yonemoto -
Publication number: 20010006485Abstract: A method for continuously preparing a medium formulation mixes a diluent with a plurality of chemically incompatible concentrate solutions in such a manner that none of the ingredients of the concentrate solutions chemically react in an adverse manner. The method utilizes a static mixing chamber to add the concentrate solutions to the diluent stream sufficiently in advance of one another so that adverse chemical reactions do not occur. The method also adjusts a pH level of the diluent prior to adding any of the concentrate solutions to the diluent.Type: ApplicationFiled: February 23, 2001Publication date: July 5, 2001Inventors: James M. Kubiak, Todd A. Battistoni, David W. Jayme
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Patent number: 6250795Abstract: This invention relates to an improved procedure and apparatus for making colored polyurethane foam products, such as carpet underlay and the like, as well as the improved colored product itself. Such a procedure entails the utilization of at least one valve assembly within a color dosing manifold such that the valve itself is simultaneously in contact with both the outside surface and the inside surface of the manifold. Such a disposition for a valve assembly permits color to be introduced directly into a binder (i.e., polyol and isocyanate) or polyol stream in order to substantially eliminate any color remaining in contact solely with the inside walls of the manifold. This in turn permits thorough mixing of the binder and colorant and substantially reduces the response time from opening the valve to producing colored polyurethane materials (such as polyurethane foam), thereby effectively eliminating the production of waste polyurethane product.Type: GrantFiled: December 13, 2000Date of Patent: June 26, 2001Assignee: Milliken & CompanyInventors: Christopher T. Kochanowicz, Jimmy D. Chavis, F. Mark Pitman, Mark E. Ragsdale
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Patent number: 6247839Abstract: This invention relates to an improved procedure and apparatus for making colored polyurethane foam products, such as carpet underlay and the like, as well as the improved colored product itself. Such a procedure entails the utilization of at least one valve assembly within a color dosing manifold such that the valve itself is simultaneously in contact with both the outside surface and the inside surface of the manifold. Such a disposition for a valve assembly permits color to be introduced directly into a binder (i.e., polyol and isocyanate) or polyol stream in order to substantially eliminate any color remaining in contact solely with the inside walls of the manifold. This in turn permits thorough mixing of the binder and colorant and substantially reduces the response time from opening the valve to producing colored polyurethane materials (such as polyurethane foam), thereby effectively eliminating the production of waste polyurethane product.Type: GrantFiled: June 17, 1999Date of Patent: June 19, 2001Assignee: Milliken & CompanyInventors: Christopher T. Kochanowicz, Jimmy D. Chavis, F. Mark Pitman, Mark E. Ragsdale
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Patent number: 6241378Abstract: The invention relates to a dosing apparatus for pastelike substances and mixtures thereof with a solvent by means of an injector, comprising an integrated shutoff device. The apparatus contains a detection device which detects the amount of paste according to conductimetry. The shutoff device is a dual piston valve closing an opening between the paste supply tube and an injector suction chamber as well as an opening between the solvent supply tube and an injector pre-chamber. The invention also relates to a method for dosing pastelike substances and the mixtures thereof with a solvent by means of such a device. By opening a shut-off device in a supply tube for a pressurized solvent, a dual piston valve moves against an opposing force. This releases a connection between a paste supply tube and an injection suction chamber, followed by a connection between the solvent supply tube and the injector pre-chamber.Type: GrantFiled: May 10, 1999Date of Patent: June 5, 2001Assignee: Henkel-Ecolab GmbH & Co. OHGInventors: Guenther Amberg, Wolfgang Huber, Klaus Rutz
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Patent number: 6227694Abstract: Two or more substances are flowed from different inflow passages, and collided against each other at a flow rate of 4 m/sec or higher to cause a uniform reaction with each other for a short time. This method is advantageous for producing a dispersion liquid containing very fine particles the size of submicrons.Type: GrantFiled: December 22, 1997Date of Patent: May 8, 2001Assignees: Genus Corporation, Hakusui Tech Co., Ltd.Inventors: Kazutoshi Mitake, Fuminori Miyake, Fumio Yasuda, Tatsuo Yazaki, Megumu Toda
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Patent number: 6227695Abstract: A method for continuously preparing a medium formulation mixes a diluent with a plurality of chemically incompatible concentrate solutions in such a manner that none of the ingredients of the concentrate solutions chemically react in an adverse manner. The method utilizes a static mixing chamber to add the concentrate solutions to the diluent stream sufficiently in advance of one another so that adverse chemical reactions do not occur. The method also adjusts a pH level of the diluent prior to adding any of the concentrate solutions to the diluent.Type: GrantFiled: October 4, 1999Date of Patent: May 8, 2001Assignee: Invitrogen CorporationInventors: James M. Kubiak, Todd A. Battistoni, David W. Jayme
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Publication number: 20010000452Abstract: This invention relates to an improved procedure and apparatus for making colored polyurethane foam products, such as carpet underlay and the like, as well as the improved colored product itself. Such a procedure entails the utilization of at least one valve assembly within a color dosing manifold such that the valve itself is simultaneously in contact with both the outside surface and the inside surface of the manifold. Such a disposition for a valve assembly permits color to be introduced directly into a binder (i.e., polyol and isocyanate) or polyol stream in order to substantially eliminate any color remaining in contact solely with the inside walls of the manifold. This in turn permits thorough mixing of the binder and colorant and substantially reduces the response time from opening the valve to producing colored polyurethane materials (such as polyurethane foam), thereby effectively eliminating the production of waste polyurethane product.Type: ApplicationFiled: December 13, 2000Publication date: April 26, 2001Inventors: Christopher T. Kochanowicz, Jimmy D. Chavis, F. Mark Pitman, Mark E. Ragsdale
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Patent number: 6221332Abstract: Enhanced macromixing, mesomixing, and micromixing of multiple discrete reactant streams, particularly for precipitation reactions of low density pumpable fluids, are obtained by controlled continuous high pressure multiple reactant streams flowing into a chemical mixer/reactor. Individual reactant streams are pressurized to about 8,000 to 50,000 psi and achieve velocities up to about 250 meters/second in the final stage of the chemical mixer/reactor. Reactant flows are controlled by a combination of a fixed restriction and a variable driving pump.Type: GrantFiled: August 5, 1998Date of Patent: April 24, 2001Assignee: MicroFluidics International Corp.Inventors: Jeffrey R. Thumm, Michael A. Lento, Jerome S. Higgins
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Patent number: 6203187Abstract: A method for mixing fluids in which a continuously variable flow rate stream of an injection fluid is introduced into a substantially constant flow rate stream of a primary fluid in a direction substantially transverse with respect to the direction of flow of the substantially constant flow rate stream of the primary fluid.Type: GrantFiled: August 6, 1998Date of Patent: March 20, 2001Assignee: Institute of Gas TechnologyInventors: Hamid Ali Abbasi, Iosif Khaim Rabovitser, John Charles Wagner
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Patent number: 6200014Abstract: Skin friction reduction on a surface moving relative to a fluid can be obtained by conditioning (i.e., unwinding, lengthening, or stretching) and ejecting a drag-reducing material, such as a polymer or other high molecular weight material, into the boundary layer. The efficacy of the ejected material is closely related to the hydration and shear stretching of the drag-reducing molecules immediately before ejection. The invention is a method and apparatus for creating a mixture/solution with optimal drag reduction characteristics. The device mixes a drag-reducing substance such as polymer powder, paste, solution or emulsion with a water flow, stretches the polymer molecules to improve hydration, and provides uniform vorticity to the mixture/solution before it is passed into an ejection system.Type: GrantFiled: December 31, 1998Date of Patent: March 13, 2001Assignee: Cortana CorporationInventor: Victor V. Babenko
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Patent number: 6177479Abstract: In an apparatus for continuously manufacturing microspheres, a dispersed phase (O) is supplied to a chamber 27 for the dispersed phase inside of a bulkhead member 26 via a supply port 23. Thereafter, the dispersed phase enters into a gap 31 between a plate 22 via a supply port 29 in a base 25. The dispersed phase which enters into the gap 31 grows microspheres (particles) having a certain diameter while passing through a microchannel 33 by pressure applied by, for example, a pump, and is mixed with a continuous phase (W), so that microspheres are produced. The thus-produced microspheres float or are suspended in the continuous phase without needing any particular external force in response to their specific gravity, allowing the microspheres to be generated and withdrawn from a withdrawal port 32 at a significantly reduced pressure in comparison to conventional methods and apparatus.Type: GrantFiled: March 1, 1999Date of Patent: January 23, 2001Assignees: Japan as represented by Director of National Food Research Institute, Ministry of Agriculture, Forestry and Fisheries, Bio-oriented Technology Research Advancement InstitutionInventors: Mitsutoshi Nakajima, Yuji Kikuchi, Yoh Sano, Hiroshi Nabetani, Takahiro Kawakatsu, Isao Kobayashi, Hironoshin Takao
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Patent number: 6170979Abstract: A fluid injection and monitoring apparatus for the introduction of one or more fluid additives to a gaseous or liquid stream, and for monitoring the stream, such that the additives will be able to be introduced without providing a point of weakness in the pipeline, includes at least two pipe members extending radially into a pipeline, with each of the pipe members having a conduit for flow of a fluid additive material radially inward along the pipe members. A plurality of discharge orifices are provided in each of the pipe members on a downstream side thereof, with the plurality of discharge orifices being arranged in a spaced array along a respective pipe member for discharge of one or more additives downstream into said gaseous or liquid stream.Type: GrantFiled: May 27, 1998Date of Patent: January 9, 2001Inventor: Ian Smeaton