Patents by Inventor Andreas Liebscher
Andreas Liebscher 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: 20240113216Abstract: Disclosed herein is a power semiconductor device including a semiconductor body, a first load terminal, a second load terminal, an active region, an edge termination region, and a thin film layer that includes a bulk material and a laminar filler compound. Furthermore, a method of producing such a power semiconductor device is described herein, the method including: providing a thin film including a mixture of a bulk material component and a laminar filler compound onto a surface of at least parts of the edge termination region and/or over at least parts of the first load terminal; and curing the obtained mixture of the bulk material and laminar filler compound to generate a thin-film layer that includes a bulk material and a laminar filler compound.Type: ApplicationFiled: September 21, 2023Publication date: April 4, 2024Inventors: Yuliya Lisunova, Andreas Frank Behrendt, Carsten Schaeffer, Simon Paul Sindermann, Adriana Mercedes Sanchez Lotero, Silke Liebscher
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Patent number: 10457414Abstract: A fastener including a sleeve having an elongated portion, a head with a bearing surface, and an internal threaded portion, a core bolt disposed within the sleeve and having a head and a shank portion having an external threaded portion engageable threadedly with the threaded portion of the sleeve. An insert is disposed within the sleeve and surrounds a portion of the core bolt. A seal element is attached to the sleeve and juxtaposed with the bearing surface of the head of the sleeve. The fastener is adapted to be installed in a structure. The electrical contact of the fastener reduces the potential difference between it and the structure, which provides a direct path for continuous propagation of electromagnetic waves, reducing electromagnetic wave scattering and minimizing the electromagnetic signature.Type: GrantFiled: December 8, 2017Date of Patent: October 29, 2019Assignee: Arconic Inc.Inventors: Andreas Liebscher, Wudhidham Prachumsri, Curtis Lea, Luke Haylock
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Patent number: 10215218Abstract: A locking member for a fastener, such as a nut or a collar, includes a shank portion and a flanged portion, a bore extending the shank portion and the flanged portion and including a first interior portion located within the shank portion and a containment cavity located within the flanged portion, and an inner wall defining the containment cavity. The containment cavity includes an inner diameter that is greater than an inner diameter of the first interior portion of the bore. The inner wall of the containment cavity includes one or a combination of flat/linear surfaces, concave surfaces, and convex surfaces.Type: GrantFiled: August 17, 2016Date of Patent: February 26, 2019Assignee: Arconic Inc.Inventors: Gregory Rizza, Luke Haylock, Rodrigo Pinheiro, Hasim Mulazimoglu, Andreas Liebscher, Manish Kamal
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Publication number: 20180195549Abstract: A method of installing a fastener into a structure, comprising the steps of providing a fastener having a pin member including an elongated shank having a first end, a second end opposite the first end, a cylindrical shank portion having an outer surface, a head located at the first end of the elongated shank, the head including a bearing surface located on the underside of the head, and a threaded portion located at the second end of the elongated shank and a seal element adapted to be positioned on the pin member such that the seal member is juxtaposed with the bearing surface of the head of the pin member; and installing the fastener into the structure in an installed position.Type: ApplicationFiled: March 9, 2018Publication date: July 12, 2018Applicant: Arconic Inc.Inventors: Manish Kamal, Luke Haylock, Hasim Mulazimoglu, Andreas Liebscher, Gregory Rizza, Rodrigo Pinheiro, Wudhidham Prachumsri
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Publication number: 20180162551Abstract: A fastener including a sleeve having an elongated portion, a head with a bearing surface, and an internal threaded portion, a core bolt disposed within the sleeve and having a head and a shank portion having an external threaded portion engageable threadedly with the threaded portion of the sleeve. An insert is disposed within the sleeve and surrounds a portion of the core bolt. A seal element is attached to the sleeve and juxtaposed with the bearing surface of the head of the sleeve. The fastener is adapted to be installed in a structure. The electrical contact of the fastener reduces the potential difference between it and the structure, which provides a direct path for continuous propagation of electromagnetic waves, reducing electromagnetic wave scattering and minimizing the electromagnetic signature.Type: ApplicationFiled: December 8, 2017Publication date: June 14, 2018Applicant: ARCONIC INC.Inventors: Andreas Liebscher, Wudhidham Prachumsri, Curtis Lea, Luke Haylock
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Patent number: 9939004Abstract: A pin member for a fastener includes an elongated shank having a first end, a second end opposite the first end, a cylindrical shank portion having an outer surface, a head located at the first end of the elongated shank, the head including a bearing surface located on the bearing surface of the head, and a threaded portion located at the second end of the elongated shank. The pin member can be fully coated with a coating. A conformable seal element is attached to the pin member, which is adapted to fill the microscopic voids between the bearing surface of the head of the pin member and the surrounding structure under the axial load exerted by the fastener during installation. The seal element can be separate and distinct from the pin member. The seal element can be attached to the pin member for the sake of convenience, but the seal element can deform independently of the pin member and the surrounding structure in response to the forces exerted by the fastener.Type: GrantFiled: March 3, 2016Date of Patent: April 10, 2018Assignee: ARCONIC INCInventors: Manish Kamal, Luke Haylock, Hasim Mulazimoglu, Andreas Liebscher, Gregory Rizza, Rodrigo Pinheiro, Wudhidham Prachumsri
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Patent number: 9702396Abstract: A fastener including a pin member with an elongated shank having a first end, a second end opposite the first end, a cylindrical shank portion having an outer surface, a head located at the first end of the elongated shank, the head including a bearing surface located on the underside of the head, and a threaded portion located at the second end of the elongated shank. The fastener includes a washer installed on the pin member against the bearing surface of the head of the pin member. The washer includes an outer surface and at least one dielectric gasket layer located on the outer surface of the washer.Type: GrantFiled: September 15, 2015Date of Patent: July 11, 2017Assignee: Arconic Inc.Inventors: Andreas Liebscher, Luke Haylock, Gregory Rizza, Hasim Mulazimoglu, Wudhidham Prachumsri, Rodrigo Pinheiro, Manish Kamal
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Patent number: 9638236Abstract: A pin member for a fastener includes an elongated shank having a first end, a second end opposite the first end, a cylindrical shank portion having an outer surface, a head located at the first end of the elongated shank, the head including a bearing surface located on the bearing surface of the head, and a threaded portion located at the second end of the elongated shank. Either or both of the bearing surface of the head or the outer surface of the cylindrical shank portion is coated with a coating and/or is textured. The coating may be tungsten, molybdenum, copper, or a refractory ceramic. The textured surfaces may include a surface roughness greater than 0.5 micron.Type: GrantFiled: September 15, 2015Date of Patent: May 2, 2017Assignee: ARCONIC INC.Inventors: Manish Kamal, Luke Haylock, Hasim Mulazimoglu, Andreas Liebscher, Gregory Rizza, Rodrigo Pinheiro
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Publication number: 20170058937Abstract: A locking member for a fastener, such as a nut or a collar, includes a shank portion and a flanged portion, a bore extending the shank portion and the flanged portion and including a first interior portion located within the shank portion and a containment cavity located within the flanged portion, and an inner wall defining the containment cavity. The containment cavity includes an inner diameter that is greater than an inner diameter of the first interior portion of the bore. The inner wall of the containment cavity includes one or a combination of flat/linear surfaces, concave surfaces, and convex surfaces.Type: ApplicationFiled: August 17, 2016Publication date: March 2, 2017Applicant: Alcoa Inc.Inventors: Gregory Rizza, Luke Haylock, Rodrigo Pinheiro, Hasim Mulazimoglu, Andreas Liebscher, Manish Kamal
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Publication number: 20160281760Abstract: A pin member for a fastener includes an elongated shank having a first end, a second end opposite the first end, a cylindrical shank portion having an outer surface, a head located at the first end of the elongated shank, the head including a bearing surface located on the bearing surface of the head, and a threaded portion located at the second end of the elongated shank. The pin member can be fully coated with a coating. A conformable seal element is attached to the pin member, which is adapted to fill the microscopic voids between the bearing surface of the head of the pin member and the surrounding structure under the axial load exerted by the fastener during installation. The seal element can be separate and distinct from the pin member. The seal element can be attached to the pin member for the sake of convenience, but the seal element can deform independently of the pin member and the surrounding structure in response to the forces exerted by the fastener.Type: ApplicationFiled: March 3, 2016Publication date: September 29, 2016Inventors: Manish Kamal, Luke Haylock, Hasim Mulazimoglu, Andreas Liebscher, Gregory Rizza, Rodrigo Pinheiro, Wudhidham Prachumsri
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Publication number: 20160076581Abstract: A fastener including a pin member with an elongated shank having a first end, a second end opposite the first end, a cylindrical shank portion having an outer surface, a head located at the first end of the elongated shank, the head including a bearing surface located on the underside of the head, and a threaded portion located at the second end of the elongated shank. The fastener includes a washer installed on the pin member against the bearing surface of the head of the pin member. The washer includes an outer surface and at least one dielectric gasket layer located on the outer surface of the washer.Type: ApplicationFiled: September 15, 2015Publication date: March 17, 2016Applicant: ALCOA INC.Inventors: Andreas Liebscher, Luke Haylock, Gregory Rizza, Hasim Mulazimoglu, Wudhidham Prachumsri, Rodrigo Pinheiro, Manish Kamal
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Publication number: 20160076575Abstract: A pin member for a fastener includes an elongated shank having a first end, a second end opposite the first end, a cylindrical shank portion having an outer surface, a head located at the first end of the elongated shank, the head including a bearing surface located on the bearing surface of the head, and a threaded portion located at the second end of the elongated shank. Either or both of the bearing surface of the head or the outer surface of the cylindrical shank portion is coated with a coating and/or is textured. The coating may be tungsten, molybdenum, copper, or a refractory ceramic. The textured surfaces may include a surface roughness greater than 0.5 micron.Type: ApplicationFiled: September 15, 2015Publication date: March 17, 2016Applicant: ALCOA INC.Inventors: Manish Kamal, Luke Haylock, Hasim Mulazimoglu, Andreas Liebscher, Gregory Rizza, Rodrigo Pinheiro
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Publication number: 20160068275Abstract: A locking member includes a body having a first end, a second end opposite the first end, a bore extending through the body from the first end to the second end, a bearing surface at the first end, fastening means for securing the locking member to a pin member, and a channel formed within the bearing surface and surrounding the bore. The locking member also includes a first insert located within the channel. The first insert is adapted such that, when the locking member is secured against a surface of a workpiece, the first insert prevents passage of a sparking material from within the bore of the locking member.Type: ApplicationFiled: September 8, 2015Publication date: March 10, 2016Applicant: ALCOA INC.Inventors: Gregory Rizza, Luke Haylock, Andreas Liebscher, Hasim Mulazimoglu, Wudhidham Prachumsri, Rodrigo Pinheiro, Manish Kamal
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Publication number: 20160069380Abstract: A locking member includes a base portion having a first end, a second end opposite the first end, a bore extending from the first end to the second, the bore including a threaded portion having a plurality of internal threads, and an insert having a first end, a second end opposite the first end of the insert, a bore extending from the first end of the insert to the second end of the insert, the bore of the insert including a threaded portion having a plurality of internal threads. The insert is positioned within the bore of the nut. The insert is made from an electrically dispersive and electrically absorbent material, such as polymers, elastomers, flame retardant fabrics, metal foam, carbon foam, polymer foam or aerogel.Type: ApplicationFiled: September 8, 2015Publication date: March 10, 2016Applicant: ALCOA INC.Inventors: Rodrigo Pinheiro, Gregory Rizza, Luke Haylock, Hasim Mulazimoglu, Michael March, Andreas Liebscher, Manish Kamal