Patents Assigned to Vita Zahnfabrik H. Rauter GmbH & Co. KG
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Publication number: 20110128544Abstract: A miniaturized spectrometer/spectrophotometer system and methods are disclosed. A probe tip including one or more light sources and a plurality of light receivers is provided. A first spectrometer system receives light from a first set of the plurality of light receivers. A second spectrometer system receives light from a second set of the plurality of light receivers. A processor, wherein the processor receives data generated by the first spectrometer system and the second spectrometer system, wherein an optical measurement of a sample under test is produced based on the data generated by the first and second spectrometer systems.Type: ApplicationFiled: February 9, 2011Publication date: June 2, 2011Applicant: VITA ZAHNFABRIK H. RAUTER GMBH & CO. KGInventors: Wayne D. Jung, Russell W. Jung, Walter W. Sloan, Alan R. Loudermilk
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Patent number: 7907281Abstract: A miniaturized spectrometer/spectrophotometer system and methods are disclosed. A probe tip including one or more light sources and a plurality of light receivers is provided. A first spectrometer system receives light from a first set of the plurality of light receivers. A second spectrometer system receives light from a second set of the plurality of light receivers. A processor, wherein the processor receives data generated by the first spectrometer system and the second spectrometer system, wherein an optical measurement of a sample under test is produced based on the data generated by the first and second spectrometer systems.Type: GrantFiled: July 26, 2010Date of Patent: March 15, 2011Assignee: Vita Zahnfabrik H. Rauter GmbH & Co. KGInventors: Wayne D. Jung, Russell W. Jung, Walter W. Sloan, Alan R. Loudermilk
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Publication number: 20110006450Abstract: A dental sintering furnace for sintering ceramic dental elements comprises a receiving chamber (10) for receiving the dental element (14) to be sintered. The receiving chamber (10) is surrounded by an electric heating unit (24) for heating the dental elements (14) to a pre-sintering temperature. Further, the receiving chamber (10) is surrounded by an annular microwave conductor (30) designed as a hollow conductor. On an inner wall (46), the microwave conductor comprises a plurality of decoupling slots (48) to decouple the microwaves in the direction of the receiving chamber (10). In a method for sintering ceramic dental elements, all the dental elements are first heated to a pre-sintering temperature by means of the electrical heating unit (24) and then the dental elements (14) heated to the pre-sintering temperature are irradiated by microwave radiation for coupled heating of the dental elements (14) to the sintering temperature.Type: ApplicationFiled: February 13, 2009Publication date: January 13, 2011Applicant: VITA ZAHNFABRIK H. RAUTER GMBH & CO. KGInventors: Marc Stephan, Marcel Mallah
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Publication number: 20100291510Abstract: A miniaturized spectrometer/spectrophotometer system and methods are disclosed. A probe tip including one or more light sources and a plurality of light receivers is provided. A first spectrometer system receives light from a first set of the plurality of light receivers. A second spectrometer system receives light from a second set of the plurality of light receivers. A processor, wherein the processor receives data generated by the first spectrometer system and the second spectrometer system, wherein an optical measurement of a sample under test is produced based on the data generated by the first and second spectrometer systems.Type: ApplicationFiled: July 26, 2010Publication date: November 18, 2010Applicant: VITA ZAHNFABRIK H. RAUTER GMBH & CO. KGInventors: Wayne D. Jung, Russell W. Jung, Walter W. Sloan, Alan R. Loudermilk
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Patent number: 7807227Abstract: A composite material with a porous inorganic-nonmetallic matrix and a second material, and a process for its production, are characterized in that the porous inorganic-nonmetallic matrix has a bending strength ?40 MPa as measured according to ISO 6 872; the second material is an organic material which at least partly fills the pores of the porous matrix; and the composite material has a modulus of elasticity, E, ?25 GPa as measured according to ISO 10 477.Type: GrantFiled: October 2, 2007Date of Patent: October 5, 2010Assignee: Vita Zahnfabrik H. Rauter GmbH & Co. KGInventors: Stefan Aechtner, Helga Hornberger, Emil Nagel, Norbert Thiel
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Patent number: 7768644Abstract: A miniaturized spectrometer/spectrophotometer system and methods are disclosed. A probe tip including one or more light sources and a plurality of light receivers is provided. A first spectrometer system receives light from a first set of the plurality of light receivers. A second spectrometer system receives light from a second set of the plurality of light receivers. A processor, wherein the processor receives data generated by the first spectrometer system and the second spectrometer system, wherein an optical measurement of a sample under test is produced based on the data generated by the first and second spectrometer systems.Type: GrantFiled: April 1, 2009Date of Patent: August 3, 2010Assignee: Vita Zahnfabrik H. Rauter GmbH & Co. KGInventors: Wayne D. Jung, Russell W. Jung, Walter W. Sloan, Alan R. Loudermilk
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Patent number: 7767942Abstract: A method for manufacturing ceramic parts with a certain porosity by sintering using microwaves, the materials to be sintered being arranged in a vessel, wherein the microwaves introduce sintering energy into the materials to be sintered via electromagnetic waves in the range of vacuum wavelengths between 5 cm-20 cm in multimode having an electromagnetic power of up to one kilowatt, and besides being built from primary materials for the structure of the vessel, the vessel is built from a secondary material which comprises, in particular, a mixture of or mixed crystals of non-metallic, para-, ferro- or antiferromagnetic materials.Type: GrantFiled: July 5, 2003Date of Patent: August 3, 2010Assignee: Vita Zahnfabrik H. Rauter GmbH & Co. KGInventors: Marc Stephan, Markus Vollmann, Norbert Thiel
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Publication number: 20100055638Abstract: A supply system for tooth samples for determining brightness, chroma and/or shade of natural and/or bleached teeth, has a plurality of receiving elements (20, 22) in which a plurality of tooth samples (30) are linearly disposed. Groups of tooth samples (30) are provided next to each other in a first receiving element (20), wherein the tooth samples (30) have the same brightness and the same shade within each group. The second receiving element (22) also has groups of tooth samples (30) that are disposed next to each other, wherein tooth samples (30) are disposed having the same brightness and different shades within each group.Type: ApplicationFiled: December 13, 2007Publication date: March 4, 2010Applicant: VITA ZAHNFABRIK H. RAUTER GMBH & CO. KGInventors: Olivia Albarski, Norbert Thiel
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Publication number: 20090190133Abstract: A miniaturized spectrometer/spectrophotometer system and methods are disclosed. A probe tip including one or more light sources and a plurality of light receivers is provided. A first spectrometer system receives light from a first set of the plurality of light receivers. A second spectrometer system receives light from a second set of the plurality of light receivers. A processor, wherein the processor receives data generated by the first spectrometer system and the second spectrometer system, wherein an optical measurement of a sample under test is produced based on the data generated by the first and second spectrometer systems.Type: ApplicationFiled: April 1, 2009Publication date: July 30, 2009Applicant: VITA ZAHNFABRIK H. RAUTER GMBH & CO. KGInventors: Wayne D. Jung, Russell W. Jung, Walter W. Sloan, Alan R. Loudermilk
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Patent number: 7528956Abstract: A miniaturized spectrometer/spectrophotometer system and methods are disclosed. A probe tip including one or more light sources and a plurality of light receivers is provided. A first spectrometer system receives light from a first set of the plurality of light receivers. A second spectrometer system receives light from a second set of the plurality of light receivers. A processor, wherein the processor receives data generated by the first spectrometer system and the second spectrometer system, wherein an optical measurement of a sample under test is produced based on the data generated by the first and second spectrometer systems.Type: GrantFiled: September 27, 2007Date of Patent: May 5, 2009Assignee: Vita Zahnfabrik H. Rauter GmbH & Co. KGInventors: Wayne D. Jung, Russell W. Jung, Walter W. Sloan, Alan R. Loudermilk
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Patent number: 7477391Abstract: A miniaturized spectrometer/spectrophotometer system and methods are disclosed. A probe tip including one or more light sources and a plurality of light receivers is provided. A first spectrometer system receives light from a first set of the plurality of light receivers. A second spectrometer system receives light from a second set of the plurality of light receivers. A processor, wherein the processor receives data generated by the first spectrometer system and the second spectrometer system, wherein an optical measurement of a sample under test is produced based on the data generated by the first and second spectrometer systems. Improved shade matching/prediction results are obtained through the use of volumes/regions, preferably polygons, around shades in a shade system.Type: GrantFiled: October 1, 2007Date of Patent: January 13, 2009Assignee: Vita Zahnfabrik H. Rauter GmbH & Co. KGInventors: Wayne D. Jung, Russell W. Jung, Walter W. Sloan, Alan R. Loudermilk
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Patent number: 7477364Abstract: A miniaturized spectrometer/spectrophotometer system and methods are disclosed. A probe tip including one or more light sources and a plurality of light receivers is provided. A first spectrometer system receives light from a first set of the plurality of light receivers. A second spectrometer system receives light from a second set of the plurality of light receivers. A processor, wherein the processor receives data generated by the first spectrometer system and the second spectrometer system, wherein an optical measurement of a sample under test is produced based on the data generated by the first and second spectrometer systems.Type: GrantFiled: October 2, 2006Date of Patent: January 13, 2009Assignee: Vita Zahnfabrik H. Rauter GmbH & Co. KGInventors: Wayne D. Jung, Russell W. Jung, Walter W. Sloan, Alan R. Loudermilk
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Patent number: 7301636Abstract: A miniaturized spectrometer/spectrophotometer system and methods are disclosed. A probe tip including one or more light sources and a plurality of light receivers is provided. A first spectrometer system receives light from a first set of the plurality of light receivers. A second spectrometer system receives light from a second set of the plurality of light receivers. A processor, wherein the processor receives data generated by the first spectrometer system and the second spectrometer system, wherein an optical measurement of a sample under test is produced based on the data generated by the first and second spectrometer systems. Improved shade matching/prediction results are obtained through the use of volumes/regions, preferably polygons, around shades in a shade system.Type: GrantFiled: August 19, 2004Date of Patent: November 27, 2007Assignee: Vita Zahnfabrik H. Rauter GmbH & Co. KGInventors: Wayne D. Jung, Russell W. Jung, Walter W. Sloan, Alan R. Loudermilk
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Patent number: 7298483Abstract: A miniaturized spectrometer/spectrophotometer system and methods are disclosed. A probe tip including one or more light sources and a plurality of light receivers is provided. A first spectrometer system receives light from a first set of the plurality of light receivers. A second spectrometer system receives light from a second set of the plurality of light receivers. A processor, wherein the processor receives data generated by the first spectrometer system and the second spectrometer system, wherein an optical measurement of a sample under test is produced based on the data generated by the first and second spectrometer systems.Type: GrantFiled: February 21, 2003Date of Patent: November 20, 2007Assignee: Vita Zahnfabrik H. Rauter GmbH & Co. KGInventors: Wayne D. Jung, Russell W. Jung, Walter W. Sloan, Alan R. Loudermilk
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Patent number: 7294392Abstract: A composite material with a porous inorganic-nonmetallic matrix and a second material, is characterized in that the porous inorganic-nonmetallic matrix has a bending strength of ?40 MPa as measured according to ISO 6 872; the second material is an organic material which at least partly fills the pores of the porous matrix; and the composite material has a modulus of elasticity, E, of ?25 GPa as measured according to ISO 10 477.Type: GrantFiled: March 8, 2002Date of Patent: November 13, 2007Assignee: Vita Zahnfabrik H. Rauter GmbH & Co. KGInventors: Stefan Aechtner, Helga Hornberger, Emil Nagel, Norbert Thiel
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Patent number: 7223808Abstract: The invention relates to a method for the production of an adhesive and an adhesive kit for joining similar or different metal surfaces or ceramics, especially in the field of biomedicine. The objective of the invention is to avoid polymerization-linked by-products and disadvantageous effects, in addition to enabling a temporary biocompatible bond between metal and metal or metal and ceramics. The inventive method consist in using a monomer-free polymethylmethacrylate which is mixed with a suitable, non-toxic solvent and a bioactive vitreous-crystalline material with a particle size ranging from 0.05–20?, consisting of 15–45 wt. % CaO, 40–45 wt. % P2O5, 10–40 wt. % ZrO2 and 0.7–3.5 wt. % fluoride, having apatite and calcium zircon phosphate as main crystal phases and a glass phase as an auxiliary component until a flowable mixture is obtained. The invention also relates to an adhesive kit consisting of said components.Type: GrantFiled: June 14, 2002Date of Patent: May 29, 2007Assignees: Humboldt Universitaet Berlin Carite Universitaetsklinikum (CCM), Bam Bundesanstalt Fuer Materialforschung und -Pruefung, Vita Zahnfabrik H. Rauter GmbH & Co. KGInventors: Wolf-Dieter Müller, Georg Berger, Emil Nagel, Klaus-Peter Lange
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Patent number: 7109254Abstract: A method for producing a bioactive bone cement and a bone cement kit for anchoring artificial joints and for filling out bone defects. The method avoids polymerization-linked by-products and disadvantageous effects, while at the same time providing the bone cement with long-term stability. The inventive method uses a monomer-free polymethylmethacrylate, which is mixed with a suitable non-toxic solvent, and a bioactive, vitreous-crystalline material with a particle size ranging from >20 to 200 ?m, having 15–45 wt. % CaO, 40–45 wt. % P2O5, 10–40 wt. % ZrO2 and 0.7–3.5 wt. % fluoride, having apatite and calcium zircon phosphate as main crystal phases and a glass phase as an auxiliary component until a flowable mixture is obtained. The invention also relates to a bone cement kit having said components.Type: GrantFiled: June 14, 2002Date of Patent: September 19, 2006Assignees: BAM Bundesanstalt fuer Materialforschung und - pruefung, Vita Zahnfabrik H. Rauter GmbH & Co. KG, Humboldt-Universitaet Berlin, Charite Universitaetsklinikum (CCM) Medizinische Fakultaet der Humbolt-UniversitaetInventors: Wolf-Dieter Müller, Emil Nagel, Georg Berger
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Patent number: D563094Type: GrantFiled: May 31, 2007Date of Patent: March 4, 2008Assignee: Vita Zahnfabrik H. Rauter GmbH & Co. KGInventor: Wolfgang Meyer-Hayoz
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Patent number: D625430Type: GrantFiled: July 6, 2010Date of Patent: October 12, 2010Assignee: Vita Zahnfabrik H. Rauter GmbH & Co. KGInventor: Wolfgang Meyer-Hayoz
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Patent number: D625832Type: GrantFiled: May 31, 2007Date of Patent: October 19, 2010Assignee: Vita Zahnfabrik H. Rauter GmbH & Co. KGInventor: Wolfgang Meyer-Hayoz