Patents Assigned to Aurotec GmbH
  • Patent number: 11946165
    Abstract: A method for producing solid cellulose filaments from a fluid of the cellulose by extruding the fluid through a plurality of extrusion openings, whereby fluid filaments are produced, and solidifying the filaments in a coagulation bath, the filaments being bundled in the coagulation bath and being deflected as a bundle in order to be drawn from the coagulation bath above the coagulation bath level, the bundle of filaments assuming a deflection width on a deflecting device, which deflection width is defined in accordance with a formula. A device therefor is also provided.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: April 2, 2024
    Assignee: AUROTEC GMBH
    Inventors: Stefan Zikeli, Friedrich Ecker
  • Patent number: 11187338
    Abstract: A method for transporting a viscous fluid through a heat exchanger line that includes transporting a viscous fluid through a connecting piece with an excess pressure release component, where the excess pressure relief component separates an interior of the connecting piece from a discharge line in the connecting piece, and is fixed to an edge of the discharge line, mixing a fluid flow in a region of the excess pressure relief component using a mixing element disposed in the interior of the connecting piece and causing the excess pressure release component to release at least a portion of the fluid through the discharge line when the pressure of the fluid is equal to or greater than a preset excess pressure.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: November 30, 2021
    Assignee: AUROTEC GMBH
    Inventors: Stefan Zikeli, Friedrich Ecker
  • Patent number: 11091453
    Abstract: A method for producing an amine oxide by oxidation of a tertiary amine in a reactor under continuous introduction of tertiary amine in a reaction fluid and export of amine oxide, wherein a suitable surface-to-volume ratio and/or a suitable flow speed with corresponding surface/volume loads are selected in the continuous process. The reaction fluid is usually reacted in the reactor with a laminar flow.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: August 17, 2021
    Assignee: AUROTEC GMBH
    Inventors: Stefan Zikeli, Hannes Kitzler, Verena Fosodeder, Tobias Baumeister
  • Patent number: 11073177
    Abstract: A rotational sliding bearing having a static part and a mobile part, each having a sub-shell with a sliding surface, each surface arranged within an angular range of max. 180° relative to the rotational axis in the direction of rotation of the bearing, and in a closed rest position, the sub-shells of all parts together form a bearing bush, the mobile part is arranged to pivot about a pivot axis for opening the bearing relative to the static part, such that a shaft mounted in the bearing is released in a release position, and the mobile part is shaped such that, based on the sliding surface position relative to the rotational axis, in the closed rest position, a translation of a shaft accommodated in the bearing is prevented transversely to the rotational axis and in the direction of the pivot axis of the mobile part or in the counter direction.
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: July 27, 2021
    Assignee: AUROTEC GMBH
    Inventors: Stefan Zikeli, Ernst Rauch
  • Patent number: 10913048
    Abstract: A device and a method are provided for reacting a starting material in at least two reactors connected to each other, including the reacting of the starting material in a first reactor to a first product, removing the first product from the first reactor using a jet pump, wherein a negative pressure zone of the jet pump is operationally connected to the first reactor, so that the first product of the first reactor moves through the negative pressure zone in a propulsion jet of a propulsion medium of the jet pump, conducting the propulsion medium having the first product into a second reactor, wherein the first product is allowed to react into a second product, separating the second product from the propulsion medium and discharging the separated second product.
    Type: Grant
    Filed: March 19, 2013
    Date of Patent: February 9, 2021
    Assignee: AUROTEC GMBH
    Inventors: Stefan Zikeli, Friedrich Ecker
  • Patent number: 10557668
    Abstract: A heat exchanger pipe system is provided for transporting viscous fluids, including a plurality of individual heat exchangers designed as pipe elements and having a predefined control temperature and/or pressure distribution along the pipe system and in the cross-section of the pipes. The heat exchangers, which are in the form of pipe elements, are arranged at regular distances in the pipe system. The regular distances are selected in such a manner that a predetermined temperature and/or pressure distribution is maintained along the pipe system, tempering apparatus of a viscous fluid transported in the heat exchanger pipe are arranged in the heat exchangers and optional mixing elements which are used to maintain, in accordance with the pipe cross-section, a predetermined temperature and pressure distribution in the cross section of the pipes, and at least 30% of the length of the heat exchanger pipe system is equipped with heat exchangers.
    Type: Grant
    Filed: September 3, 2012
    Date of Patent: February 11, 2020
    Assignee: AUROTEC GMBH
    Inventors: Stefan Zikeli, Friedrich Ecker
  • Patent number: 10532507
    Abstract: A method and a device for cleaning a fluid is provided, the device including a housing having at least one inlet and at least one outlet, and a slide mechanism which is movable in the housing and has at least one passage having at least two filters lying substantially symmetrically opposite each other, wherein starting from the housing inlet the fluid flows symmetrically onto the filters in the passage and downstream of the filters is directed to the outlet of the housing, wherein a part of the fluid that does not flow through the passage forms a hydrodynamic buffer in a gap between the slide mechanism and the housing, wherein the passage opens out into at least two symmetrically opposite sub-channels of the outlet and at least four flushing flows are generated in the gap between at least two inlet mouths and at least two outlet mouths of the passage.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: January 14, 2020
    Assignee: AUROTEC GMBH
    Inventors: Stefan Zikeli, Michael Longin, Friedrich Ecker, Klaus Weidinger
  • Patent number: 10323191
    Abstract: A method is provided for the pyrolysis or thermolysis of a fluid or fluidized starting material in a tube bundle reactor including a plurality of heatable reactor tubes. The method includes feeding the starting material to the tube bundle reactor at one end by at least one supply line; wherein the supply line has several pressure reduction units which enable a positive pressure before the starting material is introduced into individual reactor tubes of the tube bundle reactor and a negative pressure inside the reactor tubes. The pressure reduction units control a substantially equal inflow of the starting material into individual reactor tubes and the reactor tubes are heated to a decomposition temperature of the starting material in at least one primary section. The starting material is pyrolyzed or thermolyzed and a pyrolysis or thermolysis product is obtained.
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: June 18, 2019
    Assignee: AUROTEC GMBH
    Inventors: Stefan Zikeli, Friedrich Ecker
  • Patent number: 10208402
    Abstract: A coagulation bath is provided with a coagulation liquid inlet, wherein the coagulation liquid inlet has one or more mouths, which are arranged beneath the coagulation liquid level of the coagulation bath; in particular a spinning bath system with a coagulation liquid inlet and an entry region for spinning yarns which are solidified in the spinning bath, wherein the entry region is provided at a position in which, when the spinning bath is filled with coagulation liquid, the liquid surface is the surface of the coagulation liquid, the coagulation liquid inlet has one or more mouths arranged beneath the entry region and are directed to spinning yarns introduced into the spinning bath such that fresh coagulation liquid flows against the spinning yarns during operation, and optionally a liquid fill level regulator and possibly further tanks with different coagulation liquid composition and methods for spinning yarns in a spinning bath.
    Type: Grant
    Filed: October 10, 2013
    Date of Patent: February 19, 2019
    Assignee: AUROTEC GMBH
    Inventors: Stefan Zikeli, Friedrich Ecker
  • Patent number: 9803763
    Abstract: A pipe is provided for transporting a viscous fluid, including a pressure relief valve provided with a sealing element which separates the inside of the pipe from a discharge line and is designed to release the discharge line in the event of predetermined excess pressure. A surface of the sealing element, facing a Miler chamber of the pipe, is associated with the pipe in such a manner that the surface is flown around by a flow of the viscous fluid circulating through the pipe when in operation, and the sealing element is fixed in the closed position by a rod, the rod being displaced by the predetermined excess pressure such that the thus connected sealing element releases the discharge pipe.
    Type: Grant
    Filed: September 3, 2012
    Date of Patent: October 31, 2017
    Assignee: AUROTEC GMBH
    Inventors: Stefan Zikeli, Friedrich Ecker
  • Patent number: 9751247
    Abstract: A method is provided for producing solid cellulose filaments or films from a solution of cellulose, NMMO (N-methylmorpholine-N-oxide) and water, including pressure-extruding the solution by one or more extrusion openings and by solidifying the filaments or films in a precipitation bath. The solution is guided between the extrusion opening and the precipitation bath by an air gap, the temperature of the solution on the extrusion opening being lower than 105° C. and the pressure difference in the air gap between the pressure of the solution immediately prior to extrusion and after extrusion is between 8 and 40 bar.
    Type: Grant
    Filed: September 3, 2012
    Date of Patent: September 5, 2017
    Assignee: AUROTEC GMBH
    Inventors: Stefan Zikeli, Friedrich Ecker
  • Patent number: 9555822
    Abstract: A transport device has a carriage and at least three wheels mounted at a minimum of two axles. One of the axles is a driven axle which carries only a single, centrally mounted, electrically driven wheel. A support unit is configured to accommodate an elongated load, such as a golf bag. A guide component on a control side has a handle area. When the cart is in the operational position, the drive axle at the carriage is on hand at the control side, and the support unit substantially protrudes in the direction of the control side laterally across the drive axle.
    Type: Grant
    Filed: October 11, 2012
    Date of Patent: January 31, 2017
    Assignee: Aurotec GmbH
    Inventors: Ernst Rauch, Stefan Zikeli
  • Patent number: 9447522
    Abstract: A method is provided for producing solid material filaments or films from a fluid of the material, by extruding the fluid by one or more extrusion openings and by solidifying the material in a precipitation bath. The formed material is guided between the extrusion openings and the precipitation bath by a lateral gas flow. The gas flow is subdivided into a hot partial flow and a cold partial flow. The material is initially brought into contact with the hot partial flow and subsequently with the cold partial flow prior to it being introduced into the precipitation bath. A device is also provided for extruding and forming materials.
    Type: Grant
    Filed: September 3, 2012
    Date of Patent: September 20, 2016
    Assignee: AUROTEC GMBH
    Inventors: Stefan Zikeli, Friedrich Ecker
  • Publication number: 20150316157
    Abstract: A shut-off member is provided having a valve housing with an interior and with at least one inlet and at least one outlet, and a closure element which is mounted in the interior so as to be rotatable about an axis, wherein a free space for through-flow of a fluid between inlet and outlet is present between the closure element and the valve housing, and a pair of sealing surfaces is provided on the at least one inlet between valve housing and closure element, and wherein the sealing surface of the closure element is pivotable by rotation of the closure element and, in the locked position of the shut-off member, blocks the inlet by bearing in a fluid-tight manner on the sealing surface of the valve housing, wherein a gap or free space is provided around the closure element.
    Type: Application
    Filed: December 13, 2013
    Publication date: November 5, 2015
    Applicant: AUROTEC GMBH
    Inventors: Stefan Zikeli, Michael Longin, Friedrich Ecker, Klaus Weidinger
  • Patent number: 9101903
    Abstract: Modular microreactors are provided composed of microreactor parts including a plate body which has, on one plate side, a groove-shaped depression in which a reactor tube is accommodated, and the reaction tube has connection ends on the outer sides of the plate body. Also disclosed are reaction tubes for turbulent mixing, kits for producing the reactors and the use thereof for commencing chemical reactions.
    Type: Grant
    Filed: November 10, 2009
    Date of Patent: August 11, 2015
    Assignees: ONEA-ENGINEERING AUSTRIA GMBH, AUROTEC GMBH
    Inventors: Stefan Zikeli, Friedrich Ecker, Michael Longin, Klaus Weidinger
  • Publication number: 20140367896
    Abstract: A method is provided for producing solid material filaments or films from a fluid of the material, by extruding the fluid by one or more extrusion openings and by solidifying the material in a precipitation bath. The formed material is guided between the extrusion openings and the precipitation bath by a lateral gas flow. The gas flow is subdivided into a hot partial flow and a cold partial flow. The material is initially brought into contact with the hot partial flow and subsequently with the cold partial flow prior to it being introduced into the precipitation bath. A device is also provided for extruding and forming materials.
    Type: Application
    Filed: September 3, 2012
    Publication date: December 18, 2014
    Applicant: Aurotec GmbH
    Inventors: Stefan Zikeli, Friedrich Ecker
  • Publication number: 20140367879
    Abstract: A method is provided for producing solid cellulose filaments or films from a solution of cellulose, NMMO (N-methylmorpholine-N-oxide) and water, including pressure-extruding the solution by one or more extrusion openings and by solidifying the filaments or films in a precipitation bath. The solution is guided between the extrusion opening and the precipitation bath by an air gap, the temperature of the solution on the extrusion opening being lower than 105° C. and the pressure difference in the air gap between the pressure of the solution immediately prior to extrusion and after extrusion is between 8 and 40 bar.
    Type: Application
    Filed: September 3, 2012
    Publication date: December 18, 2014
    Applicant: AUROTEC GMBH
    Inventors: Stefan Zikeli, Friedrich Ecker
  • Publication number: 20140190572
    Abstract: A tempered connecting piece is provided for transporting a viscous fluid, and includes an excess pressure release component, which separates the inside of the connecting piece from a discharge line and is fixed to an outer edge on the discharge line. The excess pressure release component is designed to release the discharge line in the event of predetermined excess pressure and a mixing element, which thoroughly mixes a fluid flow in the region of the excess pressure release component, is arranged in the inside of the connecting piece.
    Type: Application
    Filed: September 3, 2012
    Publication date: July 10, 2014
    Applicant: Aurotec GmbH
    Inventors: Stefan Zikeli, Friedrich Ecker
  • Patent number: RE48466
    Abstract: Modular microreactors are provided composed of microreactor parts including a plate body which has, on one plate side, a groove-shaped depression in which a reactor tube is accommodated, and the reaction tube has connection ends on the outer sides of the plate body. Also disclosed are reaction tubes for turbulent mixing, kits for producing the reactors and the use thereof for commencing chemical reactions.
    Type: Grant
    Filed: April 18, 2016
    Date of Patent: March 16, 2021
    Assignees: ONEA-ENGINEERING AUSTRIA GMBH, AUROTEC GMBH
    Inventors: Stefan Zikeli, Friedrich Ecker, Michael Longin, Klaus Weidinger