Patents by Inventor Ulf Waag
Ulf Waag 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: 9925527Abstract: The invention relates to a catalytically active porous element and to a method of manufacturing same. The element is formed with at least 40% by mass cobalt and at least one further chemical element and/or at least one chemical compound which form a matrix into which particles of pure cobalt, of a cobalt alloy or of an intermetallic phase formed with cobalt are embedded. In this respect, the at least one chemical element and/or the at least one chemical compound have a lower sintering temperature and/or melting temperature than cobalt, the respective cobalt alloy or the intermetallic phase. Solely for this purpose or in addition thereto, cobalt can be partially soluble therein and/or can form a eutectic and/or a peritectic together with cobalt.Type: GrantFiled: May 12, 2015Date of Patent: March 27, 2018Assignee: GLATT GMBHInventors: Ulf Waag, Norman Reger-Wagner
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Patent number: 9833775Abstract: In a method of manufacturing open-cell bodies, individual parts of an open pore plastic in a size which corresponds to the size of the bodies to be manufactured while taking account of the shrinkage on a sintering or an open pore plastic element having predetermined break points which take account of the size and geometrical design of bodies to be manufactured are/is in filtrated and coated with a suspension in which at least one powdery material is contained. Organic components are expelled after a first heat treatment. Subsequently, a sintering is carried out. Parts of porous plastic provided with the suspension are separated before the first heat treatment or wherein, afterwards the open-cell element which is obtained from the plastic element from the material with which the bodies are formed is cut by forces and thereby separated bodies can be obtained.Type: GrantFiled: March 25, 2015Date of Patent: December 5, 2017Assignee: GLATT GMBHInventors: Ulf Waag, Norman Reger, Peter Reinhardt
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Patent number: 9815119Abstract: Described is a wear-resistant roller component for handling abrasive materials where the component comprises a metal body with at least one surface. It is characterized in that a metal template having a pattern of through-going holes is arranged on the at least one surface of the metal body and in that a cover arranged to cover at least a part of the metal template is located at a distance from the metal template to form a gap between the cover and the metal template and in that a powder material suitable for sintering is introduced into the through-going holes in the metal template through the gap and in that the metal body, the metal template, the cover and the material powder are bonded together by means of a sintering process.Type: GrantFiled: July 9, 2013Date of Patent: November 14, 2017Assignee: FLSmidth A/SInventors: Biju Karakkunnummal, David Dam Olsson, Raghunathan Swaminathan, Ulf Waag
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Publication number: 20150328624Abstract: The invention relates to a catalytically active porous element and to a method of manufacturing same. The element is formed with at least 40% by mass cobalt and at least one further chemical element and/or at least one chemical compound which form a matrix into which particles of pure cobalt, of a cobalt alloy or of an intermetallic phase formed with cobalt are embedded. In this respect, the at least one chemical element and/or the at least one chemical compound have a lower sintering temperature and/or melting temperature than cobalt, the respective cobalt alloy or the intermetallic phase. Solely for this purpose or in addition thereto, cobalt can be partially soluble therein and/or can form a eutectic and/or a peritectic together with cobalt.Type: ApplicationFiled: May 12, 2015Publication date: November 19, 2015Inventors: Ulf WAAG, Norman REGER
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Publication number: 20150273442Abstract: In the method in accordance with the invention of manufacturing an open-cell body from a metal or ceramic material, a procedure is followed such that individual parts of an open pore plastic in a size which corresponds to the size of the bodies to be manufactured while taking account of the shrinkage on a sintering or an open pore plastic element having predetermined break points which take account of the size and geometrical design of bodies to be manufactured while considering the shrinkage in the sintering are/is infiltrated and coated with a suspension in which, in addition to a liquid, at least one powdery material is contained with which the bodies are manufactured. Organic components are expelled after a first heat treatment.Type: ApplicationFiled: March 25, 2015Publication date: October 1, 2015Inventors: Ulf WAAG, Norman REGER, Peter REINHARDT
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Publication number: 20150231700Abstract: Described is a wear-resistant roller component for handling abrasive materials where the component comprises a metal body with at least one surface. It is characterized in that a metal template having a pattern of through-going holes is arranged on the at least one surface of the metal body and in that a cover arranged to cover at least a part of the metal template is located at a distance from the metal template to form a gap between the cover and the metal template and in that a powder material suitable for sintering is introduced into the through-going holes in the metal template through the gap and in that the metal body, the metal template, the cover and the material powder are bonded together by means of a sintering process.Type: ApplicationFiled: July 9, 2013Publication date: August 20, 2015Inventors: Biju Karakkunnummal, David Dam Olsson, Raghunathan Swaminathan, Ulf Waag
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Patent number: 8815983Abstract: A dispersion comprising hard material particles and at least one organic binder and/or at least one plasticizer. The hard material particles comprise an inner core comprising a fused tungsten carbide and an outer shell comprising tungsten carbide.Type: GrantFiled: April 4, 2011Date of Patent: August 26, 2014Assignee: H. C. Starck GmbHInventors: Christian Gerk, Ulf Waag
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Publication number: 20130068365Abstract: A dispersion comprising hard material particles and at least one organic binder and/or at least one plasticizer. The hard material particles comprise an inner core comprising a fused tungsten carbide and an outer shell comprising tungsten carbide.Type: ApplicationFiled: April 4, 2011Publication date: March 21, 2013Applicant: H.C. STARCK GMBHInventors: Christian Gerk, Ulf Waag
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Publication number: 20110243785Abstract: A precursor for the production of a sintered metallic component includes a core comprising one particle of a first metallic powder having a particle size d90 of at least 50 ?m. A shell layer is disposed on the core. The shell layer comprises a binder and a second powder having a particle size d90 of less than 25 ?m. The precursor is powdered.Type: ApplicationFiled: November 13, 2009Publication date: October 6, 2011Applicant: H.C STARCK GMBHInventors: Ulf Waag, Peter Leute
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Publication number: 20100003157Abstract: The invention relates to mixtures of metal, alloy or composite powders which have a mean particle diameter D50 of not more than 75 ?m, preferably not more than 25 ?m, and are produced in a process in which a starting powder is firstly deformed to give platelet-like particles and these are then comminuted in the presence of milling aids together with further additives and also the use of these powder mixtures and shaped articles produced therefrom.Type: ApplicationFiled: July 9, 2007Publication date: January 7, 2010Applicant: H.C. Starck GmbHInventors: Roland Scholl, Ulf Waag, Aloys Eiling
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Publication number: 20090277301Abstract: The invention relates to mixtures of metal, alloy or composite powders which have a mean particle diameter D50 of not more than 75 ?m, preferably not more than 25 ?m, and are produced in a process in which a starting powder is firstly deformed to give platelet-like particles and these are then comminuted in the presence of milling aids together with further additives and also the use of these powder mixtures and shaped articles produced therefrom.Type: ApplicationFiled: July 9, 2007Publication date: November 12, 2009Applicant: H.C. Starck GmbHInventors: Roland Scholl, Ulf Waag, Aloys Eiling
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Publication number: 20090252634Abstract: The invention relates to mixtures of metal, alloy or composite powders which have a mean particle diameter D50 of not more than 75 ?m, preferably not more than 25 ?m, and are produced in a process in which a starting powder is firstly deformed to give platelet-like particles and these are then comminuted in the presence of milling aids together with further additives and also the use of these powder mixtures and shaped articles produced therefrom.Type: ApplicationFiled: July 9, 2007Publication date: October 8, 2009Inventors: Roland Scholl, Ulf Waag, Aloys Eiling
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Patent number: 6828026Abstract: The invention relates to hollow balls having shells comprising a sintered inorganic material, such as metals, metal oxides or ceramic, and to methods for producing lightweight structural components using such hollow balls. According to the object of the invention, the application area is to be widened, processing to form structural components is to be made technologically simpler and the properties of the hollow balls and of the structural components produced therewith are to be improved for specific applications. For this purpose, an additional solid functional layer is formed on a shell on the hollow balls. The functional-layer material can then be made able to flow and plastically and/or elastically deformed as a result of a physical and/or chemical treatment.Type: GrantFiled: October 9, 2002Date of Patent: December 7, 2004Assignees: Glatt Systemtechnik Dresden GmbH, Fraunhofer-Gesellschaft Zur Foerderung der Angewandten Forschung E.V.Inventors: Frank Bretschneider, Herbert Stephan, Juergen Brueckner, Guenter Stephani, Lothar Schneider, Ulf Waag, Olaf Andersen, Paul Hunkemoeller
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Publication number: 20030104147Abstract: The invention relates to hollow balls having shells comprising a sintered inorganic material, such as metals, metal oxides or ceramic, and to methods for producing lightweight structural components using such hollow balls. According to the object of the invention, the application area is to be widened, processing to form structural components is to be made technologically simpler and the properties of the hollow balls and of the structural components produced therewith are to be improved for specific applications. For this purpose, an additional solid functional layer is formed on a shell on the hollow balls. The functional-layer material can then be made able to flow and plastically and/or elastically deformed as a result of a physical and/or chemical treatment.Type: ApplicationFiled: October 9, 2002Publication date: June 5, 2003Inventors: Frank Bretschneider, Herbert Stephan, Juergen Brueckner, Guenter Stephani, Lothar Schneider, Ulf Waag, Olaf Andersen, Paul Hunkemoeller
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Publication number: 20030077473Abstract: According to the invention, the shaped bodies are comprised of at least one heavy metal, preferably Fe, Ni, Co, Sn, Mo or W which can be reduced from a corresponding metallic compound at a temperature of less than 1 500° C. The shaped bodies have an outer diameter ranging from 0.05 to 0.5 mm, and a diameter-to-wall thickness ratio of 0.5 to 3%.Type: ApplicationFiled: October 8, 2002Publication date: April 24, 2003Inventors: Frank Bretschneider, Herbert Stephan, Juergen Brueckner, Guentor Stephani, Lothar Schneider, Ulf Waag
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Patent number: 6276208Abstract: The invention relates to components made from ductile metallic materials, and to a method with which deformation or the load acting on these materials is to be determined by means of acoustic emissions analysis. For this purpose, a particulate substance which is brittle at least in the temperature range below 400° C. is added to the ductile metallic material, which may preferably be a weldable structural steel, but may also be a ductile light metal alloy (e.g. aluminum alloy), in order to intensify the acoustic emissions behavior. The particles should be brittle at least in the temperature range of use of the component in question, e.g. at room temperature. It is advantageous if the particles are also plastically deformable in the forming temperature range, so that a certain structure (elongate or acicular) of the particles can be achieved, for example during cold work-hardening.Type: GrantFiled: August 31, 1999Date of Patent: August 21, 2001Assignee: Fraunhofer-Gesellschaft zur Forderung der Angewandten Forschungen E.V.Inventors: Horst Kuhnicke, Lothar Schneider, Gustav Zouhar, Ulf Waag