Patents by Inventor Sascha Cramer von Clausbruch
Sascha Cramer von Clausbruch 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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Patent number: 11337783Abstract: The invention relates to a dental machine tool, in particular a dental milling machine (10), having a tool (12) that is changeable in particular via a tool bank (16), and a workpiece holder (14) for receiving a workpiece such as a dental blank made of ceramic, composite or plastics material such as PMMA, and having a housing (24) which is closable during machining by the machine tool, and having a negative-pressure connection to the housing (24). At least one air nozzle (30) that is fitted on or in the housing (24) is directed towards the workpiece and/or the workpiece holder (14) and/or the tool (12) and/or the tool bank (16) and/or a pane of a front flap of the machine tool. Said air nozzle (30) is equipped with at least one electrode for generating an electric field in the region of the nozzle or in front of the latter, and at least one nozzle comprising at least one electrode is directed towards that side of the workpiece or of the workpiece holder (14) on which the tool (12) machines the workpiece.Type: GrantFiled: January 7, 2020Date of Patent: May 24, 2022Assignee: Ivoclar Vivadent AGInventors: Vadim Bodgan, Sascha Cramer Von Clausbruch
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Patent number: 10646309Abstract: The invention discloses a process for producing dental shaped parts which consists entirely of porous glass without crystalline portions. The density of the blank is between 50% and 95% of its theoretical density. It has a discoidal shape with a diameter of at least 20 mm. The blank is produced by a process in which glass powder is first pressed at a pressure of between 10 MPa and 300 MPa and this green body is (pre-)sintered at a temperature of between 580° C. and 750° C. to form a blank of porous glass without crystalline portions. From the obtained blank, monolithic dental shaped parts can be obtained by mechanical processing followed by sintering, wherein a process according to the invention for stabilizing the shape of the shaped parts is used.Type: GrantFiled: July 18, 2017Date of Patent: May 12, 2020Assignee: Ivoclar Vivadent AGInventors: Jörg Reinshagen, Sascha Cramer Von Clausbruch, Michael Winterling
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Publication number: 20200138554Abstract: The invention relates to a dental machine tool, in particular a dental milling machine (10), having a tool (12) that is changeable in particular via a tool bank (16), and a workpiece holder (14) for receiving a workpiece such as a dental blank made of ceramic, composite or plastics material such as PMMA, and having a housing (24) which is closable during machining by the machine tool, and having a negative-pressure connection to the housing (24). At least one air nozzle (30) that is fitted on or in the housing (24) is directed towards the workpiece and/or the workpiece holder (14) and/or the tool (12) and/or the tool bank (16) and/or a pane of a front flap of the machine tool. Said air nozzle (30) is equipped with at least one electrode for generating an electric field in the region of the nozzle or in front of the latter, and at least one nozzle comprising at least one electrode is directed towards that side of the workpiece or of the workpiece holder (14) on which the tool (12) machines the workpiece.Type: ApplicationFiled: January 7, 2020Publication date: May 7, 2020Inventors: Vadim Bodgan, Sascha Cramer Von Clausbruch
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Patent number: 10562144Abstract: The invention relates to a dental machine tool, in particular a dental milling machine (10), having a tool (12) that is changeable in particular via a tool bank (16), and a workpiece holder (14) for receiving a workpiece such as a dental blank made of ceramic, composite or plastics material such as PMMA, and having a housing (24) which is closable during machining by the machine tool, and having a negative-pressure connection to the housing (24). At least one air nozzle (30) that is fitted on or in the housing (24) is directed towards the workpiece and/or the workpiece holder (14) and/or the tool (12) and/or the tool bank (16) and/or a pane of a front flap of the machine tool. Said air nozzle (30) is equipped with at least one electrode for generating an electric field in the region of the nozzle or in front of the latter, and at least one nozzle comprising at least one electrode is directed towards that side of the workpiece or of the workpiece holder (14) on which the tool (12) machines the workpiece.Type: GrantFiled: October 22, 2015Date of Patent: February 18, 2020Assignee: Ivoclar Vivadent AGInventors: Vadim Bodgan, Sascha Cramer Von Clausbruch
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Patent number: 10405952Abstract: A blank which is provided for producing dental shaped parts such as crowns, bridges, veneers, abutments and the like, already has at least one preform of a dental shaped part, which is available for producing this shaped part. In particular, the preforms in the blank are prepared by machining of the blank, preferably by cutting, sawing, grinding, drilling and/or milling. The preforms are in particular preforms for single crowns.Type: GrantFiled: February 28, 2013Date of Patent: September 10, 2019Assignee: Ivoclar Vivadent AGInventor: Sascha Cramer Von Clausbruch
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Patent number: 9901426Abstract: The invention discloses a blank for producing dental shaped parts which consists entirely of porous glass without crystalline portions. The density of the blank is between 50% and 95% of its theoretical density. It has a discoidal shape with a diameter of at least 20 mm. The blank is produced by a process in which glass powder is first pressed at a pressure of between 10 MPa and 300 MPa and this green body is (pre-)sintered at a temperature of between 580° C. and 750° C. to form a blank of porous glass without crystalline portions. From the obtained blank, monolithic dental shaped parts can be obtained by mechanical processing followed by sintering, wherein a process according to the invention for stabilizing the shape of the shaped parts is used.Type: GrantFiled: December 19, 2011Date of Patent: February 27, 2018Assignee: Ivoclar Vivadent AGInventors: Jörg Reinshagen, Sascha Cramer Von Clausbruch, Michael Winterling
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Publication number: 20180008386Abstract: The invention discloses a process for producing dental shaped parts which consists entirely of porous glass without crystalline portions. The density of the blank is between 50% and 95% of its theoretical density. It has a discoidal shape with a diameter of at least 20 mm. The blank is produced by a process in which glass powder is first pressed at a pressure of between 10 MPa and 300 MPa and this green body is (pre-)sintered at a temperature of between 580° C. and 750° C. to form a blank of porous glass without crystalline portions. From the obtained blank, monolithic dental shaped parts can be obtained by mechanical processing followed by sintering, wherein a process according to the invention for stabilizing the shape of the shaped parts is used.Type: ApplicationFiled: July 18, 2017Publication date: January 11, 2018Inventors: Jörg Reinshagen, Sascha Cramer Von Clausbruch, Michael Winterling
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Publication number: 20170225283Abstract: The invention relates to a dental machine tool, in particular a dental milling machine (10), having a tool (12) that is changeable in particular via a tool bank (16), and a workpiece holder (14) for receiving a workpiece such as a dental blank made of ceramic, composite or plastics material such as PMMA, and having a housing (24) which is closable during machining by the machine tool, and having a negative-pressure connection to the housing (24). At least one air nozzle (30) that is fitted on or in the housing (24) is directed towards the workpiece and/or the workpiece holder (14) and/or the tool (12) and/or the tool bank (16) and/or a pane of a front flap of the machine tool. Said air nozzle (30) is equipped with at least one electrode for generating an electric field in the region of the nozzle or in front of the latter, and at least one nozzle comprising at least one electrode is directed towards that side of the workpiece or of the workpiece holder (14) on which the tool (12) machines the workpiece.Type: ApplicationFiled: October 22, 2015Publication date: August 10, 2017Inventors: Vadim BODGAN, Sascha CRAMER VON CLAUSBRUCH
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Patent number: 9186227Abstract: In a method of doping or of coloring ceramic, glass ceramic or glass, the ceramic, the glass ceramic or the glass is provided as granular material and this granular material is brought into contact with a solution which contains metal ions and/or metal complexes. This method is used in particular in the production of shaped bodies that consist at least partly of the mentioned materials. In this way, preferably a shaped body of dental ceramic is produced.Type: GrantFiled: May 11, 2012Date of Patent: November 17, 2015Assignee: Ivoclar Vivadent AGInventors: Jörg Reinshagen, Sascha Cramer von Clausbruch
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Publication number: 20150125822Abstract: A blank which is provided for producing dental shaped parts such as crowns, bridges, veneers, abutments and the like, already has at least one preform of a dental shaped part, which is available for producing this shaped part. In particular, the preforms in the blank are prepared by machining of the blank, preferably by cutting, sawing, grinding, drilling and/or milling. The preforms are in particular preforms for single crowns.Type: ApplicationFiled: February 28, 2013Publication date: May 7, 2015Inventor: Sascha Cramer Von Clausbruch
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Publication number: 20140302460Abstract: In a dental implant (20) comprising an implant body (30) for the insertion into the jaw (14) of a patient, and comprising a mounting section (54) with a through-passage recess for a bolted connection (70) that may be screwed into the implant body for the releasable attachment of the mounting section (54) to the implant body, a superstructure (52), in particular a crown, is provided that at least forms the major part of an outer surface of at least one dental restoration. The mounting section (54) and the implant body releasably mesh with one another via engagement elements that have at least one inclined plane departing from the circular shape, in particular a multi-sided profile or polygon. The superstructure (52) and the mounting section (54) are formed as an integral structural member (50) made from the same material.Type: ApplicationFiled: January 24, 2013Publication date: October 9, 2014Inventor: Sascha Cramer Von Clausbruch
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Publication number: 20140135200Abstract: In a method of doping or of colouring ceramic, glass ceramic or glass, the ceramic, the glass ceramic or the glass is provided as granular material and this granular material is brought into contact with a solution which contains metal ions and/or metal complexes. This method is used in particular in the production of shaped bodies that consist at least partly of the mentioned materials. In this way, preferably a shaped body of dental ceramic is produced.Type: ApplicationFiled: May 11, 2012Publication date: May 15, 2014Applicant: Ivoclar Vivadent AGInventors: Jörg Reinshagen, Sascha Cramer von Clausbruch
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Publication number: 20140120297Abstract: The invention discloses a blank for producing dental shaped parts which consists entirely of porous glass without crystalline portions. The density of the blank is between 50% and 95% of its theoretical density. It has a discoidal shape with a diameter of at least 20 mm. The blank is produced by a process in which glass powder is first pressed at a pressure of between 10 MPa and 300 MPa and this green body is (pre-)sintered at a temperature of between 580° C. and 750° C. to form a blank of porous glass without crystalline portions. From the obtained blank, monolithic dental shaped parts can be obtained by mechanical processing followed by sintering, wherein a process according to the invention for stabilizing the shape of the shaped parts is used.Type: ApplicationFiled: December 19, 2011Publication date: May 1, 2014Applicant: IVOCLAR VIVADENT AGInventors: Jörg Reinshagen, Sascha Cramer von Clausbruch, Michael Winterling
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Patent number: 6420288Abstract: A process is described for the preparation of shaped translucent lithium disilicate glass ceramic products which are characterized by high strength and good chemical stability and may be processed by pressing in the plastic state or milling to finished glass ceramic products which may be used in particular as dental restorations.Type: GrantFiled: November 6, 1998Date of Patent: July 16, 2002Assignee: Ivoclar AGInventors: Marcel Schweiger, Sascha Cramer von Clausbruch, Wolfram Höland, Volker Rheinberger
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Publication number: 20020010063Abstract: A process is described for the preparation of shaped translucent lithium disilicate glass ceramic products which are characterized by high strength and good chemical stability and may be processed by pressing in the plastic state or milling to finished glass ceramic products which may be used in particular as dental restorations.Type: ApplicationFiled: November 6, 1998Publication date: January 24, 2002Inventors: MARCEL SCHWEIGER, SASCHA CRAMER VON CLAUSBRUCH, WOLFRAM HOLAND, VOLKER RHEINBERGER
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Patent number: D770628Type: GrantFiled: March 24, 2015Date of Patent: November 1, 2016Assignee: IVOCLAR VIVADENT AGInventors: Sascha Cramer von Clausbruch, Michael Tinius