Patents by Inventor Thomas Rentz
Thomas Rentz 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: 20070172585Abstract: An optical coating is applied to an article surface of an article by providing a deposition substrate other than the article surface, wherein the deposition substrate is made of a removable material. The optical coating is thereafter deposited onto the deposition substrate. The optical coating is thereafter transferred to the article surface using a transfer support, which may be the deposition substrate or may be a different piece. The method includes thereafter affixing the optical coating to the article surface, and thereafter removing the transfer support.Type: ApplicationFiled: January 16, 2007Publication date: July 26, 2007Applicant: GENERAL ELECTRIC COMPANYInventors: Daniel Ivkovich, Andrew Skoog, Jane Murphy, Thomas Rentz, William Stowell, Bryan Bojanowski
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Publication number: 20070141269Abstract: A coating and method for overcoating a TBC on a component used in a high-temperature environment, such as the combustor section of an industrial gas turbine. The coating defines the outermost surface of the component and is formed of at least two layers having different compositions. An inner layer of the coating contains alumina in a first silica-containing matrix material that is free of zinc titanate. An outer layer of the coating contains alumina, a glass material, and zinc titanate in a second silica-containing matrix material. The outer layer of the coating has a surface roughness of not greater than three micrometers Ra and forms the outermost surface of the component. The coating reduces the component temperature by reducing the convective and radiant heat transfer thereto.Type: ApplicationFiled: January 26, 2007Publication date: June 21, 2007Applicant: General Electric CompanyInventors: Wiliam Stowell, Daniel Ivkovich, Timothy Manning, Tara McGovern, Jane Murphy, Thomas Rentz, Mathew Roling, Raymond Rowe, Andrew Skoog
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Publication number: 20070102398Abstract: Methods are provided for producing large volumes of small antenna arrays. In one embodiment, the method comprises the steps of creating an antenna array pattern as a computer file, printing the created pattern onto the surface of a suitable transfer paper, placing the printed image surface in contact with the surface of a material to be etched, and transferring the printed image to the surface of the material to be etched. The transfer can be effected by any combination of chemicals, heat, and/or pressure. After transfer of the printed image, the transfer paper is removed. The step of removing the transfer paper optionally includes wetting the transfer paper in a manner that dissolves the transfer paper leaving the printed antenna pattern on the surface of the material to be etched.Type: ApplicationFiled: November 10, 2005Publication date: May 10, 2007Applicant: GENERAL ELECTRIC COMPANYInventors: William Stowell, Michael Steele, Thomas Rentz
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Patent number: 7166627Abstract: The present invention relates to a process for the production of substituted 5-isoxazolidinone antibiotics. More specifically the patent relates to the production of compounds that mimic the antibiotic action of ?-lactams, are resistant to ?-lactamase degradation, and inhibit all classes of ?-lactamase.Type: GrantFiled: August 15, 2003Date of Patent: January 23, 2007Assignee: University of CincinnatiInventors: Richard A. Day, Charles Thomas Rentz, Gregory Shannon Huang, Amit B. Patel, Amjad M. Iqbal, Paul M. Gretz, Xiangzhong Shen, Xuefei Cao
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Publication number: 20060243368Abstract: A method for forming a ceramic layer on the surface of a turbine component. This method comprises the following steps: (a) providing a turbine component having a surface; (b) providing at least one ceramic tape overlaying the component surface; and (c) manually pressing the at least one ceramic tape against the component surface at a temperature of from about 150° to about 700° F. (from about 66° to about 371° C.) so as to cause the at least one ceramic tape to adhere to the component surface.Type: ApplicationFiled: April 28, 2005Publication date: November 2, 2006Inventors: William Stowell, Terry Kent, Thomas Rentz, Jane Murphy, Daniel Ivkovich, Andrew Skoog
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Publication number: 20050282020Abstract: A coating and method for overcoating a TBC on a component used in a high-temperature environment, such as the combustor section of an industrial gas turbine. The coating defines the outermost surface of the component and is formed of at least two layers having different compositions. An inner layer of the coating contains alumina in a first silica-containing matrix material that is free of zinc titanate. An outer layer of the coating contains alumina, a glass material, and zinc titanate in a second silica-containing matrix material. The outer layer of the coating has a surface roughness of not greater than three micrometers Ra and forms the outermost surface of the component. The coating reduces the component temperature by reducing the convective and radiant heat transfer thereto.Type: ApplicationFiled: June 18, 2004Publication date: December 22, 2005Applicant: GENERAL ELECTRIC COMPANYInventors: William Stowell, Daniel Ivkovich, Timothy Manning, Tara McGovern, Jane Murphy, Thomas Rentz, Mathew Roling, Raymond Rowe, Andrew Skoog
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Publication number: 20050170762Abstract: A method for machining a component. The method includes providing a machining apparatus configured to induce vibrations such that a vibration direction of the machining apparatus is substantially aligned with respect to a machining direction of the component, and vibrating the machining apparatus in the vibration direction to machine the component in the machining direction.Type: ApplicationFiled: February 23, 2005Publication date: August 4, 2005Inventors: Timothy Kostar, Thomas Rentz
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Publication number: 20050136767Abstract: A ceramic matrix composite system includes multiple stacked layers of ceramic fiber cloth impregnated with resin matrix material. The resin matrix material in each of the fiber cloth layers substantially remains with the same layer during subsequent processing. Ceramic-containing material inner layers are applied between each of the fiber cloth layers enhancing the cross ply strength of the composite system.Type: ApplicationFiled: December 17, 2003Publication date: June 23, 2005Applicant: General Electric CompanyInventors: Daniel Ivkovich, Andrew Skoog, Jane Murphy, Thomas Rentz
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Publication number: 20050100665Abstract: An optical coating is applied to an article surface of an article by providing a deposition substrate other than the article surface, wherein the deposition substrate is made of a removable material. The optical coating is thereafter deposited onto the deposition substrate. The optical coating is thereafter transferred to the article surface using a transfer support, which may be the deposition substrate or may be a different piece. The method includes thereafter affixing the optical coating to the article surface, and thereafter removing the transfer support.Type: ApplicationFiled: November 6, 2003Publication date: May 12, 2005Applicant: General Electric CompanyInventors: Daniel Ivkovich, Andrew Skoog, Jane Murphy, Thomas Rentz, William Stowell, Bryan Bojanowski
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Publication number: 20050079284Abstract: An optical coating is applied to an article surface of an article by applying a first release system to a deposition substrate, and depositing the optical coating onto the deposition substrate. A second release system and transfer substrate is applied to the second face of the optical coating. The first release system is dissolvable in a first-release-coating solvent that does not dissolve the second release system. The first release system is dissolved in the first-release-coating solvent that does not dissolve the second release system, to separate the optical coating from the deposition substrate. The first face of the optical coating is affixed to the article surface, and the transfer substrate is separated from the optical coating. Any of a variety of affixing techniques may be used.Type: ApplicationFiled: October 8, 2003Publication date: April 14, 2005Applicant: General Electric CompanyInventors: Daniel Ivkovich, Andrew Skoog, Jane Murphy, Thomas Rentz, William Stowell, Bryan Bojanowski
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Publication number: 20040254381Abstract: The present invention relates to a process for the production of substituted 5-isoxazolidinone antibiotics. More specifically the patent relates to the production of compounds that mimic the antibiotic action of &bgr;-lactams, are resistant to &bgr;-lactamase degradation, and inhibit all classes of &bgr;-lactamase.Type: ApplicationFiled: August 15, 2003Publication date: December 16, 2004Inventors: Richard A. Day, Charles Thomas Rentz, Gregory Shannon Huang, Amit B. Patel, Amjad M. Iqbal, Paul M. Gretz, Xiangzhong Shen, Xuefei Cao