Plural Mixing Chambers Patents (Class 366/91)
  • Patent number: 10745524
    Abstract: The present invention provides a fluorine-containing, silicon-containing compound of formula (I): T1-(A-B)n-T2 which is useful as an additive.
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: August 18, 2020
    Assignees: OCHANOMIZU UNIVERSITY, DAIKIN INDUSTRIES, LTD.
    Inventors: Tomoko Yajima, Kana Sasahara, Tadashi Kanbara, Tsuyoshi Noguchi
  • Publication number: 20150023124
    Abstract: The invention relates to a continuous dough kneading machine for pastry or bread mixes, such as for sandwich bread, said machine comprising: a substantially tubular chamber (C) provided with an inlet (E) for the dough to be kneaded and an outlet (S) for the kneaded dough, including a constriction, said chamber (C) comprising an upstream sub-chamber (C1) connected to the inlet (E) and a downstream sub-chamber (C2) connected to the outlet (S); means (P, V) for creating a negative pressure in the downstream sub-chamber (C2); and two shafts (1a, 1b) rotatably mounted inside the chamber (C), supporting dough-conveying members (5a, 5b) disposed in particular in the upstream chamber (C1) and dough-kneading members (7a, 7b, 9a, 9b) disposed in particular in the downstream chamber (C2). The machine also comprises means (1a, 1b, 11a, 11b) for forming a dough obstruction (B1) in the transition zone from the upstream chamber to the downstream chamber.
    Type: Application
    Filed: February 28, 2013
    Publication date: January 22, 2015
    Inventors: Jose Cheio De Oliveira, Dominique Dugast, Philippe Coppenolle, Emmanuel Chaillou, Pascal Ricard
  • Patent number: 8690417
    Abstract: A method for intermittent production and continuous supply of a resin-filler mixture in the course of production of plastic molded parts and an installation for intermittent production and continuous supply of a resin-filler mixture. A method and an installation, by which it is possible to ensure a continuous supply of a resin-filler mixture reliably and in continuous operation, an optimum and precise mixing ratio of the individual constituents of a resin-filler mixture, mostly consisting of a resin mixture and fillers, in which components, particularly portions of very small or highly viscous components, are dispersed finely and uniformly. Optimizing the production of resin-filler mixture for the supply of small components and achieving a continuous supply of the resin mixture that is reliable for continuous operation occurs.
    Type: Grant
    Filed: March 26, 2010
    Date of Patent: April 8, 2014
    Assignee: Dieffenbacher GmbH Maschinen- und Anlagenbau
    Inventors: Matthias Graf, Jochen Keitel
  • Patent number: 8668861
    Abstract: Protective edging for a cathode of an electroplating system. At least some of the illustrative embodiments a cathodes of an electroplating system, the cathodes including a sheet of metallic material that defines a front, a back and an edge, a plurality of apertures through the metallic material proximate to a portion of the edge and a plastic material that envelops the portion of the edge and the plurality of apertures. The plastic material extends through the apertures and is adhered to the metallic material.
    Type: Grant
    Filed: February 18, 2013
    Date of Patent: March 11, 2014
    Assignee: Steen Enterprises, LLC
    Inventor: Richard W. Steen
  • Publication number: 20140010038
    Abstract: A continuous kneading device is provided with an upper trunk (1) to which a powder supply tube (3) through which quantified powder is supplied is connected and in which the powder is blended with a fluid, and a lower trunk (2) concentrically connected to the bottom of the upper trunk (1). The continuous kneading device continuously kneads the powder and the fluid by a first rotating kneading plate (10) built into the upper trunk (1) and a second rotating kneading plate (11) built into the lower trunk (2), wherein surfaces of the base metals of the first and second rotating kneading plates (10, 11) are covered with a coating material (50) for reducing friction when the powder and the fluid are kneaded together.
    Type: Application
    Filed: March 23, 2012
    Publication date: January 9, 2014
    Applicant: MITSUBISHI MATERIALS CORPORATION
    Inventors: Mayumi Iwako, Masaaki Nakao, Ryuji Kitamura, Masakazu Abe, Toshiaki Ueda, Hiromichi Koizumi
  • Patent number: 8388216
    Abstract: A processing installation for devolatilization of polymer melts comprises a first extruder and a second extruder arranged downstream thereof in a direction of conveyance. The first extruder comprises several rotatably drivable first shafts which are provided with first treatment members and several devolatilization zones with associated devolatilization ports. Correspondingly, the second extruder comprises several rotatably drivable second shafts which are provided with second treatment members and several second devolatilization zones with associated devolatilization ports. The first treatment members have an external diameter which is smaller than or equal to that of the second treatment members. A devolatilization unit is arranged in a transfer zone which interconnects the extruders. The devolatilization unit comprises a perforated plate and a clearance arranged downstream in the direction of conveyance.
    Type: Grant
    Filed: January 25, 2011
    Date of Patent: March 5, 2013
    Assignee: Coperion GmbH
    Inventors: Frank Lechner, Ulrich Conrad
  • Patent number: 8322907
    Abstract: A process for continuously producing an elastomeric composition includes the step of dosing into at least one extruder at least one ingredient by means of a dosing device, wherein the dosing step is regulated on the basis of: i) actual weight values of the at least one ingredient measured at dosing instants of an evaluation time period of predetermined duration preceding a given dosing instant; ii) expected weight values of the at least one ingredient calculated for corresponding dosing instants of the evaluation time period of predetermined duration preceding the dosing instant; and iii) expected weight values of the at least one ingredient calculated for a prediction time period of predetermined duration following the dosing instant; so as to minimize a prediction weight error between actual weight values measured during the prediction time period and the expected weight values calculated for the prediction time period, and a model weight error between actual weight values measured during the prediction tim
    Type: Grant
    Filed: August 20, 2007
    Date of Patent: December 4, 2012
    Assignee: Pirelli Tyre S.p.A.
    Inventors: Cesare Emanuele Amurri, Simone Francesco Pala, Roberto Zavaglio
  • Patent number: 8322912
    Abstract: A machine for the production of dough mixes for foodstuffs includes a fixed tank and at least two kneading implements with fixed axes of rotation.
    Type: Grant
    Filed: March 14, 2008
    Date of Patent: December 4, 2012
    Assignee: Sancassiano S.p.A.
    Inventor: Davide Drocco
  • Patent number: 8287174
    Abstract: Base compositions for addition-crosslinking silicone compositions are continuously produced by, in a first stage, homogeneously mixing and kneading organopolysiloxanes and flowable prehydrophobized oxidic reinforcing fillers in a continuous kneading machine with kneading chambers arranged alongside one another. In a second, downstream, stage of the process, the compositions produced in the first stage are subjected to aftertreatment in a mixing apparatus in which the compositions have been subjected to a mixing procedure with introduction of shear force.
    Type: Grant
    Filed: December 17, 2009
    Date of Patent: October 16, 2012
    Assignee: Wacker Chemie AG
    Inventors: Thomas Frese, Thomas Hierstetter, Johann Schuster, Christof Woerner
  • Publication number: 20120217330
    Abstract: In a process for treating viscous products, especially for performing polymerization processes, especially for homo- or copolymerizing thermoplastics and elastomers, wherein monomer(s) and/or catalysts and/or initiators are added to a backmixed mixing kneader, especially with a length/diameter ratio of 0.5-3.5, heat is supplied to the product which is backmixed with already reacted product and the reacted product is removed from the mixing kneader, the product in the mixing kneader shall be heated up to its boiling temperature, portions of the product shall be evaporated and exothermicity of the product shall be absorbed by evaporative cooling.
    Type: Application
    Filed: May 9, 2012
    Publication date: August 30, 2012
    Applicant: LIST HOLDING AG
    Inventors: Pierre-Alain Fleury, Pierre Lichti
  • Patent number: 8246237
    Abstract: The apparatus for the production of foams includes an extrusion device for the plastification of a polymer melt, a heat exchanger for the cooling of the polymer melt, and also a connection piece for the connection of the extrusion apparatus to the heat exchanger. The connection piece contains a metering device for the introduction of a foaming agent into the polymer melt.
    Type: Grant
    Filed: June 1, 2009
    Date of Patent: August 21, 2012
    Assignee: Sulzer Chemtech AG
    Inventor: Christian Schlummer
  • Patent number: 8206027
    Abstract: The invention relates to the use of an apparatus for adding at least one solid or viscous liquid additive, or an additive dispersed in solvent, to a reactor interior of a reactor for preparing crosslinked, finely divided polymers by copolymerizing (a) water-soluble, monoethylenically unsaturated monomers and (b) from 0.001 to 5 mol %, based on the monomers (a), of monomers comprising at least two polymerizable groups, (c) from 0 to 20 mol %, based on the monomers (a), of water-insoluble monoethylenically unsaturated monomers, where the apparatus comprises at least one screw for conveying the at least one additive and the at least one screw ends in an addition orifice substantially flush with the inner wall of the reactor interior.
    Type: Grant
    Filed: July 3, 2006
    Date of Patent: June 26, 2012
    Assignee: BASF Aktiengesellschaft
    Inventors: Annemarie Hillebrecht, Uwe Stüven, Leo Van Miert, Dominicus van Esbroeck, Bernd Brian, Siegfried Chszaniecki
  • Patent number: 8142066
    Abstract: A mixing device for synthetic leather to joint with a solid powder material includes a material mixing unit and a stirring and conveying unit. The material mixing unit includes a mixing body and two feeders. The mixing body is connected with the two feeders and has a mixing chamber therein which is intercommunicated with the two feeders. The stirring and conveying unit is connected with the material mixing unit and has a stirring and conveying chamber therein which is intercommunicated with a solid material container and the mixing chamber. Thereby, a solid powder material, a first material and a second material are respectively disposed in the solid material container and the feeders, and then guided into the mixing chamber to be well mixed for forming a mixture. The mixture is manufactured to form synthetic leather containing the solid powder material.
    Type: Grant
    Filed: June 17, 2009
    Date of Patent: March 27, 2012
    Inventor: Lung-Wen Chou
  • Patent number: 8118474
    Abstract: The invention relates to a device and to a method for mixing substances, wherein a substance to be treated is pressed with a press piston (3, 4) through a nozzle block (6) arranged between two press cylinders (1, 2). During the mixing, a fixed mixture constituent in the form of a suspension (13) is fed to the substance to be treated. The substance to be treated may be cooled during the mixing process by way of stepwise, controlled evaporation of a process fluid. Preferably, several, differently designed, exchangeable nozzle blocks are used, in order to adapt machine conditions to the changing viscosity of the substance to be mixed. The invention also relates to a mixing reactor and to a method for the continuous discharge of a product. For this, several mixers and an extrusion press are arranged next to one another and connected to one another via a transfer vehicle.
    Type: Grant
    Filed: November 29, 2005
    Date of Patent: February 21, 2012
    Inventor: Hans P. Hurlimann
  • Publication number: 20110251368
    Abstract: The invention relates to an apparatus and a method for the processing of plastic material, with a receptacle or cutter-compactor (1) into which the material to be treated can be introduced, in the lower region of which a discharge opening (10) is provided, through which the processed material can be ejected from the receptacle (1), for example into an extruder (11). According to the invention, the receptacle (1) is divided into at least two chambers (6a, 6b, 6c, . . . ) separated from each other by an intermediate base (2?, 2?, . . . ), wherein at least one mixing or comminution tool (7a, 7b, 7c, . . . ) is arranged which acts upon the material in each chamber (6a, 6b, 6c, . . . ), with which the material can be converted into a softened but permanently lumpy or particle-shaped and not melted state and wherein means (5?, 5?, . . . ) are provided which effect or permit an exchange or a transfer of the softened, lumpy, not melted material between each directly adjacent chamber (6a, 6b, 6c, . . . ).
    Type: Application
    Filed: August 14, 2008
    Publication date: October 13, 2011
    Applicant: EREMA Engineering Recycling Maschinen und Anlagen Gesellschaft m.b.H.
    Inventors: Manfred Hackl, Gerhard Wendelin, Klaus Feichtinger
  • Patent number: 7914741
    Abstract: A dissolution testing apparatus includes a base structure, a vessel support structure, a cleaning manifold and a stirring mechanism. The vessel support structure is configured for mounting testing vessels and is rotatably mounted to the base structure. The vessel support structure is rotatable from an upright position at which respective open ends of the vessels face upwardly to an inverted position at which the open ends face downwardly. The cleaning manifold is mounted to base structure below the vessel support structure and is configured for directing a fluid into the vessels while the vessel support structure is at the inverted position. The stirring mechanism includes shafts and is movably mounted to the base structure. The stirring mechanism is movable from a lower position at which the shafts extend into the vessels to an upper position at which the shafts are outside the vessels. At the upper position the stirring mechanism provides clearance for the vessel support structure to rotate.
    Type: Grant
    Filed: January 10, 2008
    Date of Patent: March 29, 2011
    Assignee: Agilent Technologies, Inc.
    Inventors: Archibald Williams, Lawrence Dwayne Chin, Martin Schwalm, Brett Andrew Feeney, Timothy Noone, Thomas John Calef
  • Patent number: 7910030
    Abstract: An apparatus for wet granulating a powder material comprises: —a barrel having a granulation chamber and being provided with a first inlet (1) for receiving said powder material and for supplying it to said granulation chamber and with a second inlet (2) for receiving a granulating liquid and for supplying it to said granulation chamber, said granulation having an aperture (9) for discharge of granules from said barrel, and —a transporting means (S) for advancing said powder material toward the end of said granulation chamber while granulating it with the aid of said granulating liquid, said transporting means (S) comprising a first transport zone (4) at its rear end, an agglomeration zone (5) downstream from the first transport zone (4) and a second transport zone (8) at its front end, said first inlet (1) and said second inlet (2) being positioned above the first transport zone (4), wherein said aperture (9) has a shape tightly fitting the terminal portion of the transporting means (S) for directly discharg
    Type: Grant
    Filed: November 26, 2003
    Date of Patent: March 22, 2011
    Assignee: Universiteit Gent
    Inventors: Jean-Paul Remon, Chris Vervaet, Eseldin Keleb, An Vermeire
  • Publication number: 20110015320
    Abstract: A process and system for continuously making a resin emulsion suitable for use in forming toner particles includes at least one micromixer for micromixing a resin mixture and aqueous phase to continuously produce an emulsion of a high solids content.
    Type: Application
    Filed: July 14, 2009
    Publication date: January 20, 2011
    Applicant: XEROX CORPORATION
    Inventors: Santiago Faucher, Mikhail Hanewich-Hollatz, Shigang Qiu, David Borbely
  • Patent number: 7815360
    Abstract: A material processing plant comprises two screw-type extruding machines (1, 2) which are interconnected by means of a link (29). The link (29) is movable from a position of connection into an open position of release of the casing bores (12). Provision is further made for a mover (38) which acts on the link (29) for implementation of the motion.
    Type: Grant
    Filed: April 17, 2004
    Date of Patent: October 19, 2010
    Assignee: Coperion GmbH
    Inventors: Rainer Munz, Jürgen Strecker
  • Patent number: 7671125
    Abstract: A process for preparing organopolysiloxane compositions (A) having a viscosity measured at 25° C. of at least 500 Pa·s., wherein organopolysiloxanes (O) and fillers (F) are mixed and kneaded in a first process stage in a kneading cascade having at least two kneading chambers arranged in series adjacent one another, each containing kneading tools having parallel axes and capable of being driven in co-rotating or counter-rotating directions, the chambers connected to one another by means of openings through which material can pass in a direction transverse to the axes of the kneading tools, with the first kneading chamber having a feed opening and the last kneading chamber having a discharge opening, to give raw mixtures, and the raw mixtures are kneaded and degassed in a reciprocating kneader in a second process stage.
    Type: Grant
    Filed: March 17, 2004
    Date of Patent: March 2, 2010
    Assignee: Wacker-Chemie GmbH
    Inventors: Manfred Heisler, Johann Schuster, Alois Schlierf, Fridolin Stary
  • Patent number: 7635217
    Abstract: Improved, high Specific Mechanical Energy extrusion systems (20) are provided including a single or twin extruder (22) and an upstream preconditioner (24). The extruder (22) includes an elongated barrel (26) with at least one elongated, axially flighted, rotatable screw assembly (58) therein. The barrel (26) includes a mid-barrel variable restriction valve assembly (32), and the screw assembly (58) has a disrupting/homogenizing screw section (66) therein upstream of the valve assembly (32). The screw section (66) includes a plurality of alternating pitch screw parts (82-92). Preferably, the barrel (26) also has an atmospheric vent (36) downstream of the valve assembly (32).
    Type: Grant
    Filed: January 3, 2008
    Date of Patent: December 22, 2009
    Assignee: Wenger Manufacturing, Inc.
    Inventors: Galen J. Rokey, Brian S. Plattner
  • Patent number: 7585465
    Abstract: Pharmaceutical product release rate testing device includes a base, at least one carousel member rotatably mounted on the base, each carousel member including a plurality of test tube pockets each adapted to receive a test tube fillable with test media, and a dipping mechanism for dipping samples to be tested into the test tubes when present in the pockets and filled with test media. A rinsing/filling mechanism is provided to rinse or fill test tubes in one set of pockets while test tubes in another set of pockets are involved in the dipping process via the dipping mechanism. The carousel member is temperature-controlled such that all of the test tubes when present in the pockets are at substantially the same temperature for critical stages of the testing process. Methods for conducting pharmaceutical product release rate testing using the device are also disclosed.
    Type: Grant
    Filed: June 15, 2006
    Date of Patent: September 8, 2009
    Assignee: Logan Instruments Corp.
    Inventors: Luke Lee, Yu Sheng Zhang, Jose Castro
  • Publication number: 20090162476
    Abstract: A system and method for mixing and forming gum structures is provided. The system may include combinations of continuous and batch mixers arranged generally in parallel and/or series for mixing gum base ingredients with subsequent gum ingredients. In one embodiment, the system and method first forms a gum structure that is not a gum base and then adds a subsequent gum ingredient such that the gum structure is less than a gum base in combination with a subsequent gum ingredient. In other embodiments, the system and method includes forming a gum base in addition to some subsequent gum ingredients that are not quite finished gum. Further, in other embodiments, the system and method may perform some of the mixing of the ingredients at a first location while mixing of further ingredients is performed at a remote location.
    Type: Application
    Filed: December 18, 2008
    Publication date: June 25, 2009
    Applicant: CADBURY ADAMS USA LLC
    Inventors: James A. Duggan, Jose Angel Amarista, George Albert Barrera, Joseph M. Bunkers, Arthur W. Upmann, Miles van Niekerk, Glenn Thompson Visscher
  • Patent number: 7547132
    Abstract: A material processing plant consists of a first screw-type machine and a second screw-type machine: The screw-type machines are connected to each other by means of a pipe elbow. An elongation compensation device is disposed between the first screw-type machine and the pipe elbow. An expansion compensation device for thermal expansion of the second screw-type machine is disposed inside the last column of the first screw-type machine which is arranged upstream of the pipe elbow.
    Type: Grant
    Filed: November 2, 2007
    Date of Patent: June 16, 2009
    Assignee: Coperion GmbH
    Inventors: Ralf Davids, Carsten Koberg, Raimund Schleicher, Ralf Riehle
  • Patent number: 7452508
    Abstract: Apparatus and a method for mixing a liquid within a disposable aspirating probe tip so that most of the liquid is forced to move past a transition zone between two different inside diameters to cause rotational mixing. The apparatus and method can be used to provide agglutination of blood, which in turn can be used for blood typing. The probe tip can include a single integral piece, or two separate portions. The transition zone can include a sharp demarcation between inside diameters, or a smooth one.
    Type: Grant
    Filed: November 6, 2001
    Date of Patent: November 18, 2008
    Inventors: Merrit N. Jacobs, Zhong Ding, Ronald F. Brookes
  • Publication number: 20080226785
    Abstract: A machine for the production of dough mixes, in particular dough mixes for foodstuffs, includes a plurality of chambers, set in succession and communicating with one another via respective passages for enabling a flow of dough from each chamber to the next one; and at least one kneading implement provided in each chamber.
    Type: Application
    Filed: March 14, 2008
    Publication date: September 18, 2008
    Applicant: SANCASSIANO S.P.A.
    Inventors: Davide DROCCO, Giuseppe SITIA
  • Publication number: 20080179790
    Abstract: A method to form a high strength moulded product is provided. The method begins by preparing a mouldable composition. The mouldable composition comprises between about 40 to 60 wt % of a fibre mixture and between about 15 to 45 wt % of an adhesive. A mould cavity is loaded with the mouldable composition up to about 90 % of the capacity of the mould cavity before applying a packing pressure of between about 435 to 870 psi to the mouldable composition. A predetermined clearance of between about 0.1 to 0.5 mm is maintained between a first mould part defining the mould cavity and a second mould part. The moulded product is removed from the mould cavity when the mouldable composition is substantially cured.
    Type: Application
    Filed: April 1, 2005
    Publication date: July 31, 2008
    Applicant: GPAC TECHNOLOGY (S) PTE LTD
    Inventors: Teck Tin Wong, Tee Jong Hui, Shin Huay Ong
  • 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: 7322738
    Abstract: In a conical twin-screw extruder in which two rotor shafts having flights on the outer peripheral surfaces thereof and being adjacent to each other in the lateral direction are accommodated in a barrel having a raw material supply port on one side and a raw material discharge port on the other side, and the distance between the rotor shafts and the outside diameters of the flights thereof are gradually reduced from the supply port side to the discharge port side, characteristically, the barrel is provided with a water-removing port for removing water contained in a raw material supplied through the raw material supply port, out of the barrel. The extruder can be applied to raw materials various shapes, sizes, and properties.
    Type: Grant
    Filed: March 10, 2005
    Date of Patent: January 29, 2008
    Assignee: Kabushiki Kaisha Kobe Seiko Sho
    Inventors: Yasuaki Yamane, Koichi Miyake, Hideo Funahashi, Masao Murakami
  • Patent number: 7264460
    Abstract: A material processing plant comprises a first screw-type extruding machine (1) and a second screw-type extruding machine (2) which is disposed downstream thereof. Between the two screw-type extruding machines (1, 2), provision is made for a delivery zone (28) where a delivery orifice is provided, extending radially of the axes (12a, 13a) of the casing bores (12, 13) of the first screw-type extruding machine (1) and being directed towards the second screw-type extruding machine (2). The at least one casing bore (12, 13) of the first screw-type extruding machine (1) is lockable in the direction of its axis (12a, 13a) by means of a sealing element.
    Type: Grant
    Filed: November 16, 2005
    Date of Patent: September 4, 2007
    Assignee: Coperion Werner & Pfleiderer GmbH & Co. KG
    Inventors: Rainer Munz, Jürgen Strecker
  • Patent number: 7137802
    Abstract: An apparatus for processing thermoplastic synthetic plastic material to be recycled comprises a first receptacle (1) and a second receptacle (2) for the material to be processed. Within both receptacles (1, 2) tools (21) for mixing and heating the material circulate around a vertical axis each. The material reaches the second receptacle (2) which is connected to an evacuating means (9), from the first receptacle (1) through a connecting conduit (3). The first receptacle (1) has above it an intake opening (19) for the material to be processed, and the mouth of the connecting conduit (3) in the second receptacle (2) is disposed at a higher level than the tools (21) circulating in this receptacle (2). The material processed is carried off the second receptacle (2) through a discharge opening (49) by means of at least one screw (47), whereby this receptacle is vacuum-tightly closed. A sluice (6) is connected to the intake opening (19) of the first receptacle (1) that also is connected to an evacuating means (9).
    Type: Grant
    Filed: January 7, 2003
    Date of Patent: November 21, 2006
    Assignee: Erema Engineering Recycling und Anlagen Gesellschaft m.b.H.
    Inventors: Helmut Bacher, Helmuth Schulz, Georg Wendelin
  • 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: 7097443
    Abstract: A method and system are provided that efficiently compound high levels of inorganic filler, processing fluid and silicone polymer at a commercial rate into homogeneous filled and devolatilized silicone compositions. In the method, filled silicone compositions are compounded by compounding a filler, processing fluid and silicone polymer in a first compounding apparatus to produce a first dispersed composition and simultaneously compounding a filler, processing fluid and silicone polymer in a second compounding apparatus that shares a common extruder shaft with the first compounding apparatus to produce a second dispersed composition. The system comprises a first compounding apparatus and a sequential second compounding apparatus that shares a common shaft with the first compounding apparatus.
    Type: Grant
    Filed: February 28, 2002
    Date of Patent: August 29, 2006
    Assignee: General Electric Company
    Inventor: Mark Howard Giammattei
  • Patent number: 7083319
    Abstract: A large-volume reactor (10) for treating a free-flowing material, having a housing (12) which surrounds an interior space (14), a material feed (11) at one end of the housing (12) and a material discharge (13) at the other end of the housing (12). A rotor shaft (22), which is driven in rotation about its axis and conveys the material in the direction from the material feed (11) to the material discharge (13), is arranged in the interior space (14). A partition wall (16) in the interior space (14) defines two separate process spaces (18?, 18?) from one another, and the partition wall (16) includes a build-up system (24) having a build-up system passage (26) which leads from an inlet opening (40) which opens out into the first process space (18?), to an outlet opening (42) which opens out into the second process space (18?).
    Type: Grant
    Filed: December 17, 2003
    Date of Patent: August 1, 2006
    Assignee: Buss SMS GmbH Verfahrenstechnic
    Inventors: Hans Peters, Rainer Näf
  • Patent number: 7033067
    Abstract: A cascading orifice mixer for mixing a viscoelastic material comprising a plurality of chambers connected in series, including a first chamber, at least one intermediate chamber and a last chamber, each chamber including an orifice providing fluid communication between adjacent chambers thereby defining a substantially unidirectional sequential flow path through the chambers is disclosed. Each chamber has a variable volume ranging from a minimum volume to a maximum volume and the chambers are adapted to transport the viscoelastic material along the sequential flow path by transporting the viscoelastic material from a filled chamber containing a quantity of the viscoelastic material to a next adjacent empty chamber wherein the filled chamber and the next adjacent chamber are each at or near the maximum volume for the respective chamber.
    Type: Grant
    Filed: December 30, 2002
    Date of Patent: April 25, 2006
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Martin Lamar Sentmanat
  • Patent number: 6989120
    Abstract: A continuous process of preparing a heat-vulcanizable filled silicone composition, comprises mixing filler and high viscosity silicone polymer continuously in a first co-rotating intermeshing twin screw extruder; and compounding a filler and silicone polymer mixture from the first extruder in a second single shaft reciprocating extruder. Another continuous process of preparing a heat-vulcanizable filled silicone composition, comprises forming a premix? of filler and high viscosity silicone polymer; mixing the premix and additional high viscosity silicone polymer continuously in a co-rotating intermeshing twin screw extruder; and compounding a filler and silicone polymer mixture from the co-rotating intermeshing twin screw extruder in a second single shaft reciprocating extruder.
    Type: Grant
    Filed: February 27, 2003
    Date of Patent: January 24, 2006
    Assignee: General Electric Company
    Inventors: Devesh Mathur, Alan L. Tate
  • Patent number: 6972102
    Abstract: The invention relates to a method for continually producing an extrusion solution for producing cellulosed shaped bodies, such as fibres and films, according to the lyocell method. According to the inventive method, (a) a cellulose suspension is produced from cellulose and an aqueous phase in a mass ratio ranging from 1:3 to 1:40, whereby shearing is maintained for between 5 to 200 minutes. (b) The cellulose suspension is dewatered to form a material having a cellulose content ranging from 20 to 80 mass % and the aqueous phase produced thereby is at least partially returned to step (a). (c) The humid cellulose material being homogenised is transported through a first shearing zone in the absence of N-methylmorpholine-N-oxide.
    Type: Grant
    Filed: September 29, 2000
    Date of Patent: December 6, 2005
    Assignee: Zimmer AG
    Inventors: Ralf-Uwe Bauer, Uwe Kind
  • Patent number: 6962674
    Abstract: A dissolution test apparatus comprises a spindle head assembly interconnected between first and second lateral support members. The lateral support members are translatable along a first axis, and the spindle head assembly is translatable along a second axis, such that the spindle head assembly is movable from a front, operative position at which test procedures are effected, to a rear position at which access to the dissolution test apparatus is enhanced. The spindle head assembly includes a dosage delivery mechanism including an actuatable dosage unit-retaining member. A front portion of the dissolution test apparatus has a tapered width to accommodate a triangular or trapezoidal array of test vessels, resulting in high visibility of the vessels.
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: November 8, 2005
    Assignee: Varian, Inc.
    Inventors: Stephen D. Dean, James E. Swon, C. J. Anthony Fernando, Paul Shoytush
  • Patent number: 6902312
    Abstract: A method for the production of rubber mixtures in a ram kneader or in an aggregate combination of a ram kneader and a preferably thereunder disposed ram-less kneader includes applying a fluid in a surface covering application onto the mixture which has been handled in the ram kneader at the same time as during the mixing process at which there occurs at least one of an enlargement of its working volume, during the discharge process in which the mixture is discharged from the ram kneader, and during a time at which the mixture is in the ram-less kneader, the boiling point of the fluid being less than the desired end temperature of the mixture and the fluid being evaporated during the course of further working of the mixture in a manner in which no fluid remnants remain.
    Type: Grant
    Filed: July 14, 2003
    Date of Patent: June 7, 2005
    Assignees: Continental Aktiengesellschaft
    Inventor: Julius Peter
  • Publication number: 20040257905
    Abstract: High levels of treated fumed silica, processing fluid and high molecular weight silicone polymer are continuously compounded into a homogeneous silica filled heat-vulcanizable silicone composition by forming a premix in a continuous annular layer mixer and continuously discharging the premix into a compounding apparatus for compounding to form the filled heat-vulcanizable silicone composition.
    Type: Application
    Filed: July 2, 2004
    Publication date: December 23, 2004
    Inventors: Jodi Boffard, Navjot Singh, Alan L. Tate, Robert Dean, Devesh Mathur
  • Publication number: 20040228204
    Abstract: A large-volume reactor (10) for treating a free-flowing material, having a housing (12) which surrounds an interior space (14), a material feed (11) at one end of the housing (12) and a material discharge (13) at the other end of the housing (12). A rotor shaft (22), which is driven in rotation about its axis and conveys the material in the direction from the material feed (11) to the material discharge (13), is arranged in the interior space (14). A partition (16) in the interior space (14) defines two separate process spaces (18′, 18″) from one another, and the partition (16) includes a build-up system (24) having a build-up system passage (26) which leads from an inlet opening (40) which opens out into the first process space (18′), to an outlet opening (42) which opens out into the second process space (18″).
    Type: Application
    Filed: December 17, 2003
    Publication date: November 18, 2004
    Applicant: Buss SMS GmbH Verfahrenstechnik
    Inventors: Hans Peters, Rainer Naf
  • Publication number: 20040159971
    Abstract: The invention relates to a method and a an apparatus for processing various materials, the apparatus including at least two annular feed gaps placed one within the other. The beginning of each feed gap is provided with a grinding section (5), which is followed in the apparatus by a mixing section (10). The materials are processed in the grinding section (5), whereafter they are mixed in the mixing section (10), and the mixture is extruded into a product.
    Type: Application
    Filed: December 29, 2003
    Publication date: August 19, 2004
    Inventor: Kari Kirjavainen
  • Patent number: 6726352
    Abstract: A method for processing a rubber mixture or compound for tire manufacturing includes the steps of determining variation tolerances with respect to reference values for process parameters, detecting values of the process parameters, comparing detected values of the process parameters with the reference values and the variation tolerances, attributing an evaluation to a semi-finished product depending on compliance or noncompliance of the detected values with the reference values and the variation tolerances, classifying the semi-finished product on a basis of the attributed evaluation, and establishing successive steps for processing the semi-finished product depending on the classification of the semi-finished product. The processing includes at least a mixing cycle and an extrusion cycle for obtaining the semi-finished product. The cycles are controlled by the process parameters detected during execution of the cycles.
    Type: Grant
    Filed: April 17, 2002
    Date of Patent: April 27, 2004
    Assignee: Pirelli Pneumatici SpA
    Inventors: Antonio Proni, Gianluigi Hotellier, Daniele Balasso
  • Patent number: 6719448
    Abstract: Material processing apparatus (10) is provided for the simultaneous production of different characterized final products using a single, initially processed product stream. The apparatus (10) includes a barrel assembly (12) having an elongated, tubular barrel (16) with a flighted, axially rotatable screw (26) within the barrel, and an additive incorporation assembly (14) coupled with the barrel (16) and having a plurality of individual mixing chambers (34, 36) configured to receive and process individual, separate streams of product from the barrel assembly (12). Individual additive injectors (52, 54) are also provided for injection of additives such as colorants or the like into the respective product streams for mixing with the chambers (34, 36). Preferably, the assembly (14) includes a flow divider (32) having plural separate passageways (46, 48), which are in communication with the corresponding mixing chambers (34, 36).
    Type: Grant
    Filed: June 13, 2002
    Date of Patent: April 13, 2004
    Assignee: Wenger Manufacturing, Inc.
    Inventors: Paul Tedman, Bobbie W. Hauck
  • Publication number: 20030231544
    Abstract: Material processing apparatus (10) is provided for the simultaneous production of different characterized final products using a single, initially processed product stream. The apparatus (10) includes a barrel assembly (12) having an elongated, tubular barrel (16) with a flighted, axially rotatable screw (26) within the barrel, and an additive incorporation assembly (14) coupled with the barrel (16) and having a plurality of individual mixing chambers (34, 36) configured to receive and process individual, separate streams of product from the barrel assembly (12). Individual additive injectors (52, 54) are also provided for injection of additives such as colorants or the like into the respective product streams for mixing with the chambers (34, 36). Preferably, the assembly (14) includes a flow divider (32) having plural separate passageways (46, 48), which are in communication with the corresponding mixing chambers (34, 36).
    Type: Application
    Filed: June 13, 2002
    Publication date: December 18, 2003
    Applicant: WENGER MANUFACTURING, INC.
    Inventors: Paul Tedman, Bobbie W. Hauck
  • Patent number: 6652254
    Abstract: The invention provides a molding apparatus adapted to use a screw having an overall length permitting the use of an existing molding machine cylinder as it is, and is capable of realizing a gas impregnation step. The screw 3 for use in the gas impregnation step comprises a resin melting portion C disposed at an upstream position for rendering the resin molten, a molten resin nonfilled-up portion E integral with the downstream side of the resin melting portion C for making the resin lower than an inert gas at a gas supply opening 5 in pressure, and a gas impregnation portion D integral with the downstream side of the molten resin nonfilled-up portion E for supplying the inert gas and impregnating the molten resin with the inert gas.
    Type: Grant
    Filed: August 30, 2002
    Date of Patent: November 25, 2003
    Assignee: Sekisui Chemical Co., Ltd.
    Inventors: Satoshi Shimura, Hitoshi Kawauchi, Hiroyuki Hirano
  • Patent number: 6645546
    Abstract: A dietary fiber product having a water absorption capacity of 8 to 15 times its weight and process for producing the same. The process includes the steps of selecting carrot material as the source for the fiber product (21), leaching a puree of the carrot material with an aqueous solution to remove the sugars from the carrot material (26), sizing the particles in the carrot material (34), bleaching the sized carrot material (41), reducing the moisture content of the bleached carrot material (46), flash drying the carrot material (43) and milling the dried carrot material to produce the dietary fiber product (49). A product produced by the process and apparatus for performing the process are disclosed, as are food products made from the carrot-based dietary fiber.
    Type: Grant
    Filed: June 22, 2001
    Date of Patent: November 11, 2003
    Assignee: Wm. Bolthouse Farms, Inc.
    Inventors: David L. Roney, Cristina E. Lang
  • Patent number: 6641993
    Abstract: Apparatus and a method for mixing a liquid within a disposable aspirating probe tip so that most of the liquid is forced to move past a transition zone between two different inside diameters to cause rotational mixing. The apparatus and method can be used to provide agglutination of blood, which in turn can be used for blood typing. The probe tip can comprise a single integral piece, or two separate portions. The transition zone can comprise a sharp demarcation between inside diameters, or a smooth one.
    Type: Grant
    Filed: February 22, 2000
    Date of Patent: November 4, 2003
    Assignee: Ortho Clinical Diagnostics, Inc.
    Inventors: Merrit N. Jacobs, Zhong Ding, Ronald F. Brookes
  • Patent number: 6610134
    Abstract: A procedure to continuously produce a suspension of cellulose in aqueous N-methylmorpholine-N-oxide is characterized in that: (a) The cellulose is conveyed through a first shearing zone in the absence of N-methylmorpholine-N-oxide and is homogenized, and (b) the homogenized cellulose is conveyed through a second shearing zone after adding enough aqueous N-methylmorpholine-N-oxide for a suspension to result in a N-methylmorpholine-N-oxide content in the liquid phase of 70-80 weight percent after mixing, whereby the cellulose or suspension almost completely fills the available content cross-section in the shearing zones.
    Type: Grant
    Filed: May 15, 2001
    Date of Patent: August 26, 2003
    Assignee: Alceru Schwarza GmbH
    Inventors: Uwe Kind, Leo Kagalowski, Marco Blech
  • Patent number: 6579001
    Abstract: In order to enable the thorough mixture of a melt flow S made of plastic, and polyvinyl chloride in particular, with the lowest possible amount of damage and the adequate homogenization thereof, the melt flow S is divided into partial flows T, which partial flows T are twisted independently from one another about axes extending in the direction of flow and are thereafter joined again into a common melt flow S.
    Type: Grant
    Filed: December 13, 2000
    Date of Patent: June 17, 2003
    Assignee: a+g extrusion technology GmbH
    Inventors: Erwin Krumböck, Wolfgang Gasselseder