Patents by Inventor Stefan Zikeli
Stefan Zikeli has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 9555822Abstract: 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: GrantFiled: October 11, 2012Date of Patent: January 31, 2017Assignee: Aurotec GmbHInventors: Ernst Rauch, Stefan Zikeli
-
Patent number: 9447522Abstract: 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: GrantFiled: September 3, 2012Date of Patent: September 20, 2016Assignee: AUROTEC GMBHInventors: Stefan Zikeli, Friedrich Ecker
-
Publication number: 20150328816Abstract: 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: ApplicationFiled: December 5, 2013Publication date: November 19, 2015Inventors: Stefan Zikeli, Michael Longin, Friedrich Ecker, Klaus Weidinger
-
Publication number: 20150316157Abstract: 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: ApplicationFiled: December 13, 2013Publication date: November 5, 2015Applicant: AUROTEC GMBHInventors: Stefan Zikeli, Michael Longin, Friedrich Ecker, Klaus Weidinger
-
Publication number: 20150247261Abstract: 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: ApplicationFiled: October 10, 2013Publication date: September 3, 2015Inventors: Stefan Zikeli, Friedrich Ecker
-
Patent number: 9101903Abstract: 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: GrantFiled: November 10, 2009Date of Patent: August 11, 2015Assignees: ONEA-ENGINEERING AUSTRIA GMBH, AUROTEC GMBHInventors: Stefan Zikeli, Friedrich Ecker, Michael Longin, Klaus Weidinger
-
Publication number: 20150122802Abstract: 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: ApplicationFiled: March 26, 2013Publication date: May 7, 2015Inventors: Stefan Zikeli, Friedrich Ecker
-
Publication number: 20150044122Abstract: 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: ApplicationFiled: March 19, 2013Publication date: February 12, 2015Inventors: Stefan Zikeli, Friedrich Ecker
-
Publication number: 20140367896Abstract: 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: ApplicationFiled: September 3, 2012Publication date: December 18, 2014Applicant: Aurotec GmbHInventors: Stefan Zikeli, Friedrich Ecker
-
Publication number: 20140367879Abstract: 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: ApplicationFiled: September 3, 2012Publication date: December 18, 2014Applicant: AUROTEC GMBHInventors: Stefan Zikeli, Friedrich Ecker
-
Publication number: 20140332299Abstract: 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: ApplicationFiled: October 11, 2012Publication date: November 13, 2014Applicant: Aurotech GMBHInventors: Ernst Rauch, Stefan Zikeli
-
Publication number: 20140326329Abstract: 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: ApplicationFiled: September 3, 2012Publication date: November 6, 2014Inventors: Stefan Zikeli, Friedrich Ecker
-
Publication number: 20140224337Abstract: 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: ApplicationFiled: September 3, 2012Publication date: August 14, 2014Inventors: Stefan Zikeli, Friedrich Ecker
-
Publication number: 20140190572Abstract: 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: ApplicationFiled: September 3, 2012Publication date: July 10, 2014Applicant: Aurotec GmbHInventors: Stefan Zikeli, Friedrich Ecker
-
Patent number: 8580167Abstract: The invention relates to a method and a device for producing Lyocell fibers which are extruded from a cellulose solution of water, cellulose and tertiary amine oxide in a spinning head (25). The cellulose solution is obtained in a number of process steps directly from the cellulose (3, 4) or with the formation of a cellulose suspension. Since the degree of polymerization decreases in the course of processing the cellulose through to its extrusion in the cellulose solution, with the processing of celluloses with a low degree of polymerization there is the risk that the endless molded bodies (2) extruded in the spinning head (25) exhibit defective quality.Type: GrantFiled: October 24, 2012Date of Patent: November 12, 2013Assignee: Lenzing AktiengesellschaftInventors: Stefan Zikeli, Michael Longin
-
Patent number: 8496748Abstract: The invention relates to a polymer composition formed from a biologically degradable polymer and a material from sea plants and/or shells of sea animals or at least two components selected from the group consisting of saccharides and the derivatives thereof, proteins, amino acids, vitamins and metal ions. The invention additionally relates to a molded article formed from the polymer composition. The molded article may be packaging material or fibrous material, in the form of fibrous material as a mixing component for the production of yarns, and in the form of fibrous material for the production of nonwoven fabrics or woven fabrics.Type: GrantFiled: March 16, 2011Date of Patent: July 30, 2013Assignee: Smartfiber AGInventors: Stefan Zikeli, Thomas Endl, Michael Gert Martl
-
Patent number: 8317503Abstract: A device for producing Lyocell fibers which are extruded from a cellulose solution of water, cellulose and tertiary amine oxide in a spinning head (25). The cellulose solution is obtained in a number of process steps directly from the cellulose (3, 4) or with the formation of a cellulose suspension. Since the degree of polymerization decreases in the course of processing the cellulose through to its extrusion in the cellulose solution, with the processing of celluloses with a low degree of polymerization there is the risk that the endless molded bodies (2) extruded in the spinning head (25) exhibit defective quality.Type: GrantFiled: May 10, 2010Date of Patent: November 27, 2012Assignee: Lenzing AktiengesellschaftInventors: Stefan Zikeli, Michael Longin
-
Publication number: 20110224463Abstract: 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: ApplicationFiled: November 10, 2009Publication date: September 15, 2011Inventors: Stefan Zikeli, Friedrich Ecker, Michael Longin, Klause Weidinger
-
Publication number: 20110200776Abstract: The invention relates to a polymer composition formed from a biologically degradable polymer and a material from sea plants and/or shells of sea animals or at least two components selected from the group consisting of saccharides and the derivatives thereof, proteins, amino acids, vitamins and metal ions. The invention additionally relates to a molded article formed from the polymer composition. The molded article may be packaging material or fibrous material, in the form of fibrous material as a mixing component for the production of yarns, and in the form of fibrous material for the production of nonwoven fabrics or woven fabrics.Type: ApplicationFiled: March 16, 2011Publication date: August 18, 2011Applicant: SMARTFIBER AGInventors: Stefan ZIKELI, Thomas ENDL, Michael Gert MARTL
-
Patent number: 7951237Abstract: The invention relates to a polymer composition comprising a biologically degradable polymer and a material from sea plants and/or shells of sea animals or at least two components selected from the group consisting of saccharides and the derivatives thereof, proteins, amino acids, vitamins and metal ions. The invention additionally relates to a molded article comprising said polymer composition. Said molded article may be used packaging material or fibrous material, in the form of fibrous material as mixing component for the production of yarns, and in the form of fibrous material for the production of nonwoven fabrics or woven fabrics.Type: GrantFiled: December 5, 2006Date of Patent: May 31, 2011Assignee: smartfiber AGInventors: Stefan Zikeli, Thomas Endl, Michael Gert Martl