Patents by Inventor Dietmar Rakutt
Dietmar Rakutt 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: 20230294377Abstract: The invention relates to a contoured structural element (100) for use as a core layer in a curved sandwich composite element, the contoured structural element (100) being formed from a thermoplastic foam, in particular PET, the contoured structural element (100) being subdivided, except for a connecting layer (12), into a plurality of body elements (10), and the body elements (10) and the connecting layer (12) being aligned parallel to a base area (26) of the contoured structural element (100) which is in a planar state. According to the invention, at least one surface layer (16) of the connecting layer (12) and the adjoining surface layer (18) of the body elements (10) at least partly have a thermally densified layer (14); the body elements (10), the connecting layer (12) and the thermally densified layer (14) being made of the same material.Type: ApplicationFiled: July 15, 2021Publication date: September 21, 2023Applicant: Airex AGInventors: Dietmar Rakutt, Roman Gätzi, Martin Gaul
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Publication number: 20220332002Abstract: A method for producing a hard-foam film, for use as a core layer in sandwich composite elements, having an increased compressive strength along a thickness extension extending perpendicularly to its surface extension, from a foam block (3) of a thermoplastic, extruded, in particular partially crystalline and/or closed-cell, plastic rigid foam material, PET.Type: ApplicationFiled: July 23, 2020Publication date: October 20, 2022Applicant: Airex AGInventors: Dietmar Rakutt, Martin Gaul, Franz Burkard
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Patent number: 9533468Abstract: A structural element for use as a core layer in a sandwich composite element, wherein the structural element (2) is formed from a plurality of mutually welded body segments (4, 5) made from an extrusion foamed thermoplastic, and wherein the structural element (2) has a first face side (1) for bonding to a cover layer, wherein a surface of the first face side (1) that can be loaded with a resin (8) has open pores (6), wherein the surface of the first face side (1) is created by hot-element cutting, in such a manner that the surface is thermally sealed to some extent, wherein a gloss value of the surface of the first face side (1), measured at 60° in accordance with DIN 67530-1982 is between 2 and 10 gloss units.Type: GrantFiled: March 26, 2013Date of Patent: January 3, 2017Assignee: Airex AGInventors: Dietmar Rakutt, Martin Gaul
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Publication number: 20150125686Abstract: A structural element for use as a core layer in a sandwich composite element, wherein the structural element (2) is formed from a plurality of mutually welded body segments (4, 5) made from an extrusion foamed thermoplastic, and wherein the structural element (2) has a first face side (1) for bonding to a cover layer, wherein a surface of the first face side (1) that can be loaded with a resin (8) has open pores (6), wherein the surface of the first face side (1) is created by hot-element cutting, in such a manner that the surface is thermally sealed to some extent, wherein a gloss value of the surface of the first face side (1), measured at 60° in accordance with DIN 67530-1982 is between 2 and 10 gloss units.Type: ApplicationFiled: March 26, 2013Publication date: May 7, 2015Inventors: Dietmar Rakutt, Martin Gaul
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Publication number: 20110287248Abstract: An unmixed plastic sheet, which is made of a thermoplastic material and which is composed of a number of body segments that are adjacent to one another in a plane, interconnected and made of a closed-cell foam material. The body segments are thermoplastically welded to one another at their abutting lateral faces while forming flat weld seams. The flat weld seams form a plastic intermediate layer, which has few pores, and which is provided in the form of a web structure that, when viewed from above, is reticular and reinforces the plastic sheet. The inventive plastic sheet is preferably used as a core layer in sandwich composites.Type: ApplicationFiled: August 2, 2011Publication date: November 24, 2011Inventors: Dietmar Rakutt, Lukas Berger
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Patent number: 7988805Abstract: An unmixed plastic sheet, which is made of a thermoplastic material and which is composed of a number of body segments that are adjacent to one another in a plane, interconnected and made of a closed-cell foam material. The body segments are thermoplastically welded to one another at their abutting lateral faces while forming flat weld seams. The flat weld seams form a plastic intermediate layer, which has few pores, and which is provided in the form of a web structure that, when viewed from above, is reticular and reinforces the plastic sheet. The inventive plastic sheet is preferably used as a core layer in sandwich composites.Type: GrantFiled: January 10, 2008Date of Patent: August 2, 2011Assignee: Alcan Technology & Management Ltd.Inventors: Dietmar Rakutt, Lukas Berger
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Publication number: 20110091715Abstract: An unmixed plastic sheet, which is made of a thermoplastic material and which is composed of a number of body segments that are adjacent to one another in a plane, interconnected and made of a closed-cell foam material. The body segments are thermoplastically welded to one another at their abutting lateral faces while forming flat weld seams. The flat weld seams form a plastic intermediate layer, which has few pores, and which is provided in the form of a web structure that, when viewed from above, is reticular and reinforces the plastic sheet. The inventive plastic sheet is preferably used as a core layer in sandwich composites.Type: ApplicationFiled: November 16, 2010Publication date: April 21, 2011Applicant: ALCAN TECHNOLOGY & MANAGEMENT LTD.Inventors: Dietmar Rakutt, Lukas Berger
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Patent number: 7857596Abstract: An unmixed plastic sheet, which is made of a thermoplastic material and which is composed of a number of body segments that are adjacent to one another in a plane, interconnected and made of a closed-cell foam material. The body segments are thermoplastically welded to one another at their abutting lateral faces while forming flat weld seams. The flat weld seams form a plastic intermediate layer, which has few pores, and which is provided in the form of a web structure that, when viewed from above, is reticular and reinforces the plastic sheet. The inventive plastic sheet is preferably used as a core layer in sandwich composites.Type: GrantFiled: April 9, 2010Date of Patent: December 28, 2010Assignee: Alcan Technology & Management LtdInventors: Dietmar Rakutt, Lukas Berger
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Publication number: 20100254819Abstract: An unmixed plastic sheet, which is made of a thermoplastic material and which is composed of a number of body segments that are adjacent to one another in a plane, interconnected and made of a closed-cell foam material. The body segments are thermoplastically welded to one another at their abutting lateral faces while forming flat weld seams. The flat weld seams form a plastic intermediate layer, which has few pores, and which is provided in the form of a web structure that, when viewed from above, is reticular and reinforces the plastic sheet. The inventive plastic sheet is preferably used as a core layer in sandwich composites.Type: ApplicationFiled: April 9, 2010Publication date: October 7, 2010Applicant: ALCAN TECHNOLOGIES MANAGEMENT LTD.Inventors: Dietmar Rakutt, Lukas Berger
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Publication number: 20080105991Abstract: An unmixed plastic sheet, which is made of a thermoplastic material and which is composed of a number of body segments that are adjacent to one another in a plane, interconnected and made of a closed-cell foam material. The body segments are thermoplastically welded to one another at their abutting lateral faces while forming flat weld seams. The flat weld seams form a plastic intermediate layer, which has few pores, and which is provided in the form of a web structure that, when viewed from above, is reticular and reinforces the plastic sheet. The inventive plastic sheet is preferably used as a core layer in sandwich composites.Type: ApplicationFiled: January 10, 2008Publication date: May 8, 2008Applicant: ALCAN TECHNOLOGY & MANAGEMENT LTD.Inventors: Dietmar Rakutt, Lukas Berger
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Publication number: 20070182047Abstract: A method for producing fiber-reinforced plate material on the basis of a fiber web that contains at least one planar fiber structure and is impregnated with a thermoplastic plastic matrix. The one or more fiber structures are impregnated or coated with a reactive starting material, containing cyclic or macrocylic oligomers of the polyester, and in that the fiber web which contains one or more combined, impregnated or coated fiber structures is coated on one or both sides with a surface layer that contains a polymerized polyester. The fiber web that is coated with said surface layer is pressed in a pressing device to give a plate material, thereby polymerizing the reactive starting material into a plastic matrix that surrounds the fiber structure and that is permanently joined to the surface layer.Type: ApplicationFiled: February 19, 2005Publication date: August 9, 2007Inventors: Markus Henne, Kurt Behre, Dietmar Rakutt, Martin Hintermann
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Publication number: 20060257612Abstract: An unmixed plastic sheet, which is made of a thermoplastic material and which is composed of a number of body segments that are adjacent to one another in a plane, interconnected and made of a closed-cell foam material. The body segments are thermoplastically welded to one another at their abutting lateral faces while forming flat weld seams. The flat weld seams form a plastic intermediate layer, which has few pores, and which is provided in the form of a web structure that, when viewed from above, is reticular and reinforces the plastic sheet. The inventive plastic sheet is preferably used as a core layer in sandwich composites.Type: ApplicationFiled: August 16, 2003Publication date: November 16, 2006Inventors: Dietmar Rakutt, Lukas Berger
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Patent number: 6506808Abstract: Microcellular rigid foams with a matrix consisting of cross-linked duromers, especially of polytriazine resins, and with an apparent density of 20 to 95 percent of the density of the compact matrix material. The rigid foams are highly stable and highly temperature resistant and are suitable for use, e.g., as material for aircraft lining.Type: GrantFiled: July 10, 2000Date of Patent: January 14, 2003Assignee: Lonza AGInventors: Ulrich Daum, Dietmar Rakutt