Patents by Inventor Norbert Treber
Norbert Treber 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: 20100186453Abstract: In a known method for the production of a blank mold for optical fibers, a fluorine-doped SiO2 enveloping glass is produced on a core glass cylinder that rotates about its longitudinal axis, wherein a silicon-containing starting substance is fed to a plasma burner, said substance is then oxidized in a plasma flame assigned to the plasma burner to obtain SiO2 particles, the SiO2 particles are deposited by layers on the enveloping surface of the cylinder of the core glass cylinder in the presence of fluorine and sintered into the enveloping glass. The invention aims at providing an economical method, which builds upon the above-mentioned method, in order to produce a blank mold from which optical multi-mode fibers (52) can be obtained.Type: ApplicationFiled: March 24, 2010Publication date: July 29, 2010Applicant: Heraeus Quarzglas GmbH & Co. KGInventors: Gerhard Schötz, Karsten Bräuer, Michael Hünermann, Richard Schmidt, Heinz Fabian, Norbert Treber
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Patent number: 7716952Abstract: In a known method for the production of a blank mold for optical fibers, a fluorine-doped SiO2 enveloping glass is produced on a core glass cylinder that rotates about its longitudinal axis, wherein a silicon-containing starting substance is fed to a plasma burner, said substance is then oxidized in a plasma flame assigned to the plasma burner to obtain SiO2 particles, the SiO2 particles are deposited by layers on the enveloping surface of the cylinder of the core glass cylinder in the presence of fluorine and sintered into the enveloping glass. The invention aims at providing an economical method, which builds upon the above-mentioned method, in order to produce a blank mold from which optical multi-mode fibers (52) can be obtained.Type: GrantFiled: April 6, 2004Date of Patent: May 18, 2010Assignee: Heraeus Quarzglas GmbH & Co. KGInventors: Gerhard Schötz, Karsten Bräuer, Heinz Fabian, Norbert Treber
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Publication number: 20060213228Abstract: In a known method for the production of a blank mold for optical fibers, a fluorine-doped SiO2 enveloping glass is produced on a core glass cylinder that rotates about its longitudinal axis, wherein a silicon-containing starting substance is fed to a plasma burner, said substance is then oxidized in a plasma flame assigned to the plasma burner to obtain SiO2 particles, the SiO2 particles are deposited by layers on the enveloping surface of the cylinder of the core glass cylinder in the presence of fluorine and sintered into the enveloping glass. The invention aims at providing an economical method, which builds upon the above-mentioned method, in order to produce a blank mold from which optical multi-mode fibers (52) can be obtained.Type: ApplicationFiled: April 6, 2004Publication date: September 28, 2006Applicant: Heraeus Tenevo GmbHInventors: Gerhard Schotz, Karsten Brauer, Michael Hunermann, Richard Schmidt, Heinz Fabian, Norbert Treber
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Patent number: 7089765Abstract: On the basis of a known process for the production of a preform for an optical fiber for optical data transmission technology, the productivity of the process for the production of complex refractive index profiles is to be improved by providing a quartz glass substrate tube which exhibits different doping in radial direction, introducing a core glass made of synthetic quartz glass into the substrate tube and covering the substrate tube with a jacket tube. A substrate tube suitable therefor is also being provided which tube requires less core glass material for the production of the preform, whether during the internal deposition or for the core glass rod in the rod-in-tube technique.Type: GrantFiled: May 20, 2002Date of Patent: August 15, 2006Assignees: Heraeus Tenevo GmbH, Furukawa Electric North America, Inc.Inventors: Hartwig Schaper, Norbert Treber, Oliver Humbach, Uwe Haken, Donald Paul Jablonowski
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Publication number: 20020136515Abstract: On the basis of a known process for the production of a preform for an optical fiber for optical data transmission technology, the productivity of the process for the production of complex refractive index profiles is to be improved by providing a quartz glass substrate tube which exhibits different doping in radial direction, introducing a core glass made of synthetic quartz glass into the substrate tube and covering the substrate tube with a jacket tube. A substrate tube suitable therefor is also being provided which tube requires less core glass material for the production of the preform, whether during the internal deposition or for the core glass rod in the rod-in-tube technique.Type: ApplicationFiled: May 20, 2002Publication date: September 26, 2002Inventors: Hartwig Schaper, Norbert Treber, Oliver Humbach, Uwe Haken, Donald Paul Jablonowski
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Patent number: 5429653Abstract: Starting from a process for producing a rod-like preform, in particular for optical fibers, in which a tubular blank whose refractive index changes, viewed in the radial direction is fed to a heating zone, is softened there, and in the softened state is shaped to give the preform, a method is described for producing preforms which are hyperpure and low in defects, in which the blank used is one whose refractive index decreases, viewed in the radial direction, from the outside inwards, starting from at least one interface which is at a sufficient distance from the outer surface of the blank, of which that part which has been softened in the heating zone is introverted apart from an outer skin, and by which the preform is formed in the longitudinal axis of the tubular blank, counter to the direction in which the latter is fed to the heating zone, and in which the remaining outer skin is drawn off as a rod in the feed direction of the blank.Type: GrantFiled: January 29, 1993Date of Patent: July 4, 1995Assignee: Heraeus Quarzglas GmbHInventors: Helmut Leber, Hartwig Schaper, Norbert Treber, Gerhart Vilsmeier, Klaus Reimann
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Patent number: 4437727Abstract: A quartz glass envelope tube for the preparation of a light guide fiber blank, the tube being in the form of a laminate in which the inner layer consists essentially of quartz glass made from rock crystal and the outer layer of synthetic quartz glass. Good mechanical properties, especially tensile strength, are thereby achieved.Type: GrantFiled: June 3, 1982Date of Patent: March 20, 1984Assignee: Heraeus Quarzschmelze GmbHInventor: Norbert Treber
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Patent number: 4235615Abstract: A semiproduct for use in the manufacture of light conducting fibers comprising a core of synthetic quartz glass having a thickness of 6 to 400 mm, the quartz glass containing less than 10 ppm hydroxyl ions and having, in the near infrared spectral range, an optical loss totaling less than 4 dB/km, measured in the mass, the core being fused with a jacket having a wall thickness of 2 to 20 mm and consisting essentially of synthetic quartz glass containing more than 4,000 ppm of fluorine, the jacket having a length of at least 200 mm; a method of producing the same and light conducting fibers derived therefrom.Type: GrantFiled: February 9, 1979Date of Patent: November 25, 1980Assignee: Heraeus Quartzschmelze GmbHInventors: Karlheinz Rau, Albert Muhlich, Fritz Simmat, Norbert Treber
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Patent number: 4165915Abstract: A semiproduct for use in the manufacture of light conducting fibers comprising a core of synthetic quartz glass having a thickness of 6 to 400 mm, the quartz glass containing less than 10 ppm hydroxyl ions and having, in the near infrared spectral range, an optical loss totaling less than 4 dB/km, measured in the mass, the core being fused with a jacket having a wall thickness of 2 to 20 mm and consisting essentially of synthetic quartz glass containing more than 4,000 ppm of fluorine, the jacket having a length of at least 200 mm; a method of producing the same and light conducting fibers derived therefrom.Type: GrantFiled: August 11, 1976Date of Patent: August 28, 1979Assignee: Heraeus Quarzschmelze GmbHInventors: Karlheinz Rau, Albert Muhlich, Fritz Simmat, Norbert Treber
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Patent number: 4162908Abstract: An improvement in a method for producing a synthetic hydroxyl ion-free quartz glass wherein a hydrogen free silicon compound is heated in a hydrogen-free gas stream while the gas stream is passed through an induction coupled plasma burner, the gas stream containing elemental and/or bound oxygen and the oxidation product is deposited on a refractory support as a vitreous mass, the improvement lying in including in the gas stream a gaseous hydrogen-free, thermally decomposable compound which yields fluorine in an amount of at least 500 gms. per kilogram of silica to be produced; an apparatus for producing a synthetic OH ion-free quartz glass comprising an induction coupled plasma burner which burner has disposed thereabout 3 concentric quartz glass tubes disposed in stepped configuration of which the outermost tube is the longest and the innermost tube is the shortest.Type: GrantFiled: February 3, 1978Date of Patent: July 31, 1979Assignee: Heraeus Quarzschmelze GmbHInventors: Karlheinz Rau, Fritz Simmat, Albert Muhlich, Norbert Treber
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Patent number: 4045198Abstract: There is disclosed a process for preparing a foreproduct useful in the production of an optical self-focusing lightconductor in which the index of refraction of the lightconductor diminishes with increasing distance from the conductor axis such that, when plotted against the conductor diameter, the refractive index curve is parabolic and the apex of the parabola lies over the center of the conductor diameter wherein a plurality of layers of doped silica are deposited on a cylindrical support, the layers being formed of a mixture of a vaporous silicon compound and a vaporous doping agent at elevated temperature. The invention involves depositing at least one layer of undoped silica between layers of doped silica and following each deposition of each doped or undoped silica layer by heating step in which the material is heated to a temperature of at least 900.degree. C to vitrify the same. Each layer is deposited in a thickness ranging from 0.1 to 20 .mu.m.Type: GrantFiled: August 24, 1976Date of Patent: August 30, 1977Assignee: Heraeus Quarzschmelze GmbHInventors: Karlheinz Rau, Albert Muhlich, Fritz Simmat, Norbert Treber
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Patent number: RE30883Abstract: An improvement in a method for producing a synthetic hydroxyl ion-free quartz glass wherein a hydrogen free silicon compound is heated in a hydrogen-free gas stream while the gas stream is passed through an induction coupled plasma burner, the gas stream containing elemental and/or bound oxygen and the oxidation product is deposited on a refractory support as a vitreous mass, the improvement lying in including in the gas stream a gaseous hydrogen-free, thermally decomposable compound which yields fluorine in an amount of at least 500 gms. per kilogram of silica to be produced; an apparatus for producing a synthetic OH ion-free quartz glass comprising an induction coupled plasma burner which burner has disposed thereabout 3 concentric quartz glass tubes disposed in stepped configuration of which the outermost tube is the longest and the innermost tube is the shortest.Type: GrantFiled: February 13, 1980Date of Patent: March 16, 1982Assignee: Heraeus Quarzscmelze GmbHInventors: Karlheinz Rau, Fritz Simmat, Albert Muhlich, Norbert Treber