Patents by Inventor Peter Weigel
Peter Weigel 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).
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Publication number: 20080038979Abstract: The invention relates to a method for the production of non-woven fabrics, in which a lyotropic solution of cellulose carbamate in N-methylmorpholine-N-oxide (NMMNO) is spun into a plurality of filament yarns by means of extrusion through a nozzle beam containing a plurality of openings via an air gap into a regenerating bath, said filament yarns being intermingled subsequently by being subjected to a flow with gaseous medium and/or fluid. The invention likewise relates to non-woven fabrics of this type and the use thereof.Type: ApplicationFiled: February 17, 2005Publication date: February 14, 2008Inventors: Peter Weigel, Hans-Peter Fink
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Publication number: 20080023874Abstract: The invention relates to high-strength fibres and other moulded articles comprising cellulose carbamate or cellulose which is obtained by regeneration of cellulose carbamate, and also production thereof by extrusion of a solution of cellulose carbamate in N-methylmorpholine-N-oxide (NMMNO).Type: ApplicationFiled: February 17, 2005Publication date: January 31, 2008Inventors: Hans-Peter Fink, Peter Weigel, Rainer Rihm
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Publication number: 20070298670Abstract: The invention relates to a proton-conducting polymer membrane and to a method for the production thereof. Starting from a catalyst layer, which is homogeneously deposited on the polymer membrane (3), the catalyst layer is subdivided into a number of catalyst segments (1a, 1b) by microstructuring so that adjacent fuel cell units of a planar fuel cell arrangement can be realized in the smallest possible space.Type: ApplicationFiled: February 17, 2005Publication date: December 27, 2007Inventors: Peter Weigel, Hans-Peter Fink, Michael Doss
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Patent number: 7037096Abstract: Apparatus for the production of extruded blown cellulose film from a solution of cellulose, water and an amine-oxide, which includes:—extrusion apparatus for continuously extruding a cellulose solution to produce a cellulose film;—solidifying apparatus for solidifying the extruded cellulose film;—drawing apparatus positioned downstream of the extrusion apparatus for continuously drawing the extruded cellulose film from the extrusion apparatus; and a tubular member for containing precipitation apparatus and for receiving an extruded blown film wherein the tubular member is situated within a precipitation bath. The invention also includes a method of extruding blown film.Type: GrantFiled: October 18, 1999Date of Patent: May 2, 2006Assignee: Fraunhofer-Gesellschaft zur Forderung der Angewandteh Forschung E.V.Inventors: Stefan D. Beckers, Peter Weigel, Hans-Peter Fink, Michael Dosz, Hans-Joachim Purz
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Publication number: 20050234229Abstract: The invention relates to a method for the direct production of fibres, films, beads, sponges and other moulded articles made of cellulose carbamate which was obtained by conversion of cellulose with urea at increased temperature and direct dissolution of the reaction product in sodium hydroxide solution without an additional washing and cleaning operation.Type: ApplicationFiled: May 9, 2003Publication date: October 20, 2005Inventors: Fritz Loth, Eckehart Schaaf, Peter Weigel, Hans-Peter Fink
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Publication number: 20050215778Abstract: The invention relates to a method for the production of cellulose carbamate by reactive extrusion and for the production of moulded articles made of regenerated cellulose. The method for the production of cellulose carbamate is based thereby on the activation of cellulose, subsequent separation of the activation solution and following thereon reactive extrusion of the activated cellulose. Typical examples of moulded articles which can be produced therefrom are fibres, films, beads, sponges or sponge-type cloths.Type: ApplicationFiled: May 9, 2003Publication date: September 29, 2005Inventors: Fritz Loth, Hans-Peter Fink, Peter Weigel
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Publication number: 20050019561Abstract: The invention concerns a profiled part and aggregates for making same. The aggregates contain a material for plastic matrix technique and an adherence promoter. Regenerated cellulose fiber elements are incorporated in the matrix material. The characteristic profile of a profiled part made from such aggregates corresponds substantially to that of profiled PC/ABS parts, the profiled part of the invention being, however, capable of being produced at a more advantageous cost, being more recyclable and being, moreover, capable of being shaped at lower temperatures.Type: ApplicationFiled: October 17, 2002Publication date: January 27, 2005Inventors: Jochen Gassan, Rudolf Einsiedel, Hans-Peter Fink, Peter Weigel
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Patent number: 6699542Abstract: The invention relates to a method of manufacturing tubular films from a solution of a mixture if cellulose and proteins by extrusion blowing the solution over an air gap into a precipitation bath, and to the films produced with this method and their application.Type: GrantFiled: September 18, 2002Date of Patent: March 2, 2004Assignee: Fraunhofer-Gesellschaft zur Förderung der Angewandten forschung e.V.Inventors: Peter Weigel, Hans-Peter Fink, Michael Doss, Stefan Dominic Beckers, Roger Henri Hendrikx
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Publication number: 20030062648Abstract: This invention relates to a process for the production of a cellulose molded body according to the amine-oxide process, which results in a molded body having reduced and effectively controllable fibrillation properties.Type: ApplicationFiled: September 18, 2002Publication date: April 3, 2003Inventors: Peter Weigel, Hans-Peter Fink, Michael Doss, Stefan Dominic Beckers, Roger Henri Hendrikx
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Patent number: 6521169Abstract: Process for the production of cellulose shaped bodies through the precipitation of a cellulose solution containing cellulose dissolved in an amine oxide/water system in a precipitation bath, wherein the solution contains additional cellulose fibers.Type: GrantFiled: August 6, 1999Date of Patent: February 18, 2003Assignee: Fraunhofer-Gesellschaft zur Forderung der Angewandten Forschung e.V.Inventors: Peter Weigel, Hans-Peter Fink, Konrad Frigge
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Patent number: 6234475Abstract: Transporting apparatus for individual sheets, having two transporting paths which are aligned at an angle to one another. A diverter arrangement with a first diverter body, which can be adjusted in a translatory manner, and a second diverter body, which can be pivoted about its longitudinal axis synchronously with said first diverter body, serves for optionally guiding a single sheet along the first transporting path, deflecting the sheet into the second transporting path or deflecting it back from there into the first transporting path. For this purpose, a first diverter surface and a third diverter surface, which is aligned at an acute angle to the first diverter surface, are formed on the first diverter body. The second diverter body bears a second diverter surface.Type: GrantFiled: November 8, 1999Date of Patent: May 22, 2001Assignee: Siemens Nixdorf Informationssyteme AktiengesellschaftInventors: Peter Weigel, Klaus Tauchert
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Patent number: 6123327Abstract: The automatic cash dispenser has the following elements, a safe (18) for receiving at least one banknote cassette (32) and a separating device (34) for drawing off the banknotes out of the banknote cassette (32), of a banknote-dispensing compartment (50), which can be closed by a closure device (52), of a conveying device for conveying the banknotes from the separating device (34) to the dispensing compartment (50), of a control device for controlling the separating and the conveying devices. Also an operating panel (14, 16) with actuating elements for actuating the control device. The dispensing compartment (50) is arranged above the safe (18). In a central region of its top surface (22), the safe (18) has an aperture (42) for the through-passage of the conveying device.Type: GrantFiled: July 8, 1999Date of Patent: September 26, 2000Assignee: Siemens Nixdorf Informationssysteme AktiengesellschaftInventors: Guenter Holland-Letz, Manfred Krafft, Hans-Guenter Voss, Peter Weigel, deceased, by Michaela Weigel, executrix, by Frederike Weigel, executor, by Gregor Weigel, executor
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Patent number: 6113842Abstract: The invention is directed to a method of manufacturing oriented cellulose films by spinning non-derivated cellulose dissolved in amino oxides into a precipitating bath. The cellulose solution is extruded downward through a film-blowing nozzle and an external air gap into the precipitating bath. The spun cellulose film can be inflated after exiting the film-blowing nozzle.Type: GrantFiled: February 28, 1997Date of Patent: September 5, 2000Assignee: Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E. V.Inventors: Peter Weigel, Hans-Peters Fink, Konrad Frigge, Wolfgang Schwarz
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Patent number: 6103162Abstract: The invention relates to a process for producing flexible cellulose fibres by spinning solutions of the cellulose through spinnerets over an air layer in an amine oxide-containing aqueous and/or alcoholic regenerating bath followed by drying, in which the damp threads from the spinneret are taken before drying through at least one post-treatment bath containing water and water-miscible alkanols, diols, triols or mixtures thereof, and a washing bath containing water, an alkanol, a diol or a triol.Type: GrantFiled: December 14, 1998Date of Patent: August 15, 2000Assignee: Fraunhofer-Gesellschaftzur Forderung der Angewandten Forschung e.V.Inventors: Konrad Frigge, Hans-Peter Fink, Peter Weigel, Ernst Walenta, Helmut Remde
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Patent number: 6006989Abstract: In the case of an automatic money-receiving and -dispensing machine having a banknote-receiving location (20), having a banknote-checking and recognition device, having at least one intermediate store for intermediately storing received banknotes, having a banknote-dispensing location (22), having a plurality of storage units (30, 32, 34, 36) which are arranged in a secure housing (16) and are intended for keeping, storing and/or dispensing banknotes, and having transporting path (40) which connect the receiving location (44), the dispensing location (52), the checking and recognition device (58) and the storage units (30, 32, 34, 36) to one another, at least one of the storage units (32, 30) contains an exchangeable storage cassette (31, 33) for banknotes which are to be dispensed, at least one storage unit (34, 36) having a winding store for receiving, storing and dispensing banknotes, the storage units (30, 32, 34, 36) being connected to a common, first transporting path (40), which is arranged, together wType: GrantFiled: March 27, 1998Date of Patent: December 28, 1999Assignee: Siemens NixdorfInventors: Heinz Ademmer, Udo Tewes, Peter Weigel
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Patent number: 6003856Abstract: A system for dispensing sheet material such as security documents from one of two sheet compartments to a collecting station is disclosed. The system includes a delivery roller and a stepping motor provided independently for each of the two sheet compartments. The delivery roller associated with each of the sheet compartments draws the foremost sheet from a sheet stack within the respective compartment. The foremost sheet drawn off from the stack is fed to a conveyor roller independently associated with each respective sheet compartment wherein the conveyor roller of each sheet compartment is driven by the stepping motor of the other sheet compartment. The sheet drawn off from the stack is fed to a dispensing conveyor which is common to both sheet compartments. The drive for the system is carried out by the two stepping motors. The motors are operated in opposite directions when dispensing is taking place from each of the sheet compartments.Type: GrantFiled: March 27, 1998Date of Patent: December 21, 1999Assignee: Siemens Nixdorf Informationssysteme AktiengesellschaftInventors: Gunter Holland-Letz, Ulrich Nottelmann, Udo Tewes, Peter Weigel
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Patent number: 5993710Abstract: The invention pertains to a process for manufacturing cellulose molded mers wherein a solution dissolved in amine oxides is shaped in a nozzle and the shaped solution is led after an air gap into a precipitation medium. The molded solution is passed successively through at least two precepitation media, which are selected so that a slower coagualation takes place at least in the first precipitation medium than the final precipitation medium.Type: GrantFiled: January 9, 1998Date of Patent: November 30, 1999Assignee: Fraunhofer-Gesellschaft zur Forderung der Angewandten Forschung e.V.Inventors: Peter Weigel, Hans-Peter Fink, Hans Joachim Purz, Konrad Frigge, Ulrich Wachsmann, Martin Nywalt
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Patent number: 5938189Abstract: The invention relates to a sheet-extracting device with a cassette for receiving a stack of sheets, and to a method of controlling the pressing force of the stack of sheets against the extracting device. The latter has extracting rollers (16) which are arranged on a floating shaft (34). For its part, the floating shaft (34) is centrally connected in a rationally fixed manner to a drive shaft (18) passing through it. The drive shaft (18) is mounted, by one end (20), in a frame-mounted bearing (21) and, by its other end (62), in a displaceable bearing (64). Acting on the bearing (64) is a force sensor (70, 74, 76) which is intended for determining the pressing force of the stack of sheets (12) against the extracting rollers (16). The pressing force is controlled such that it always moves within a narrow middle range between a minimum and a maximum possible value.Type: GrantFiled: March 10, 1998Date of Patent: August 17, 1999Assignee: Siemens Nixdorf Informationssysteme AktiengesellschaftInventors: Gunter Holland-Letz, Peter Weigel, Waldemar Jager
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Patent number: 5848786Abstract: The invention relates to a sheet-extracting device with a cassette for receiving a stack of sheets, and to a method of controlling the pressing force of the stack of sheets against the extracting device. The latter has extracting rollers (16) which are arranged on a floating shaft (34). For its part, the floating shaft (34) is centrally connected in a rotationally fixed manner to a drive shaft (18) passing through it. The drive shaft (18) is mounted, by one end (20), in a frame-mounted bearing (21) and, by its other end (62), in a displaceable bearing (64). Acting on the bearing (64) is a force sensor (70, 74, 76) which is intended for determining the pressing force of the stack of sheets (12) against the extracting rollers (16). The pressing force is controlled such that it always moves within a narrow middle range between a minimum and a maximum possible value.Type: GrantFiled: September 16, 1996Date of Patent: December 15, 1998Assignee: Siemens Nixdorf Informationssyteme AktiengesellschaftInventors: Gunter Holland-Letz, Peter Weigel, Waldemar Jager
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Patent number: 5760211Abstract: The invention relates to a method of manufacturing cellulose solutions whereby cellulose is dispersed in an aqueous amino oxide solution and is treated with xylanase or enzyme mixtures containing xylanase.Type: GrantFiled: July 11, 1997Date of Patent: June 2, 1998Assignee: Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V.Inventors: Harry Schleicher, Peter Weigel, Hendrik Wetzel