Patents by Inventor Alan D. Cetel

Alan D. Cetel 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).

  • Publication number: 20160312894
    Abstract: The present disclosure relates to advanced materials, particularly single crystal grain structures including the formation of single crystal grain structures. Single crystal grain structures offer improved mechanical properties when used with individual components. Improving mechanical properties is favorable for components that are used in applications with high temperature, pressure, and stress. In these applications, mechanical failure is extremely undesirable. Individual components, such as seals, can be designed with a single crystal grain structure in a preferred direction. By selecting a preferred direction, and orienting the single crystal grain structure accordingly, the single crystal grain structure can improve the component's mechanical properties. Single crystal grain structure seals and the method of forming the seals, therefore, offer various improvements to individual components, specifically when the components are designed for high temperature, pressure, and stress applications.
    Type: Application
    Filed: April 24, 2015
    Publication date: October 27, 2016
    Inventors: Michael G. McCAFFREY, Jeffrey M. WITTMAN, Dilip M. SHAH, Alan D. CETEL, Timothy M. DAVIS, Mark J. ROGERS
  • Publication number: 20160222801
    Abstract: A blade (60; 60-2) comprises an airfoil (61) and an attachment root (63). The blade has a tipward zone (80; 80-2; 80-2, 81) and a rootward zone (82; 82-2, 81; 82). The rootward zone has a single crystal structure. The tipward zone has a single crystal structure. The crystalline orientations of the rootward zone and tipward zone are at least 15° out of registry with each other.
    Type: Application
    Filed: August 13, 2014
    Publication date: August 4, 2016
    Applicant: United Technologies Corporation
    Inventors: John J. Marcin, Steven J. Bullied, Dilip M. Shah, Alan D. Cetel
  • Publication number: 20160214350
    Abstract: A coating-substrate combination includes: a Ni-based superalloy substrate comprising, by weight percent: 2.0-5.1 Cr; 0.9-3.3 Mo; 3.9-9.8 W; 2.2-6.8 Ta; 5.4-6.5 Al; 1.8-12.8 Co; 2.8-5.8 Re; 2.8-7.2 Ru; and a coating comprising, exclusive of Pt group elements, by weight percent: Ni as a largest content 5.8-9.3 Al; 4.4-25 Cr; 3.0-13.5 Co; up to 6.0 Ta, if any; up to 6.2 W, if any; up to 2.4 Mo, if any; 0.3-0.6 Hf; 0.1-0.4 Si; up to 0.6 Y, if any; up to 0.4 Zr, if any; up to 1.0 Re, if any.
    Type: Application
    Filed: August 19, 2013
    Publication date: July 28, 2016
    Applicant: PRATT & WHITNEY CANADA CORP.
    Inventors: Joel Larose, Alan D. Cetel, David A. Litton, Brian S. Tryon
  • Publication number: 20160158834
    Abstract: A method for casting an article comprises a first region and a second region. The method comprises casting an alloy in a shell, the shell having a casting core protruding from a first metal piece; and deshelling and decoring to remove the shell and core and leave the first region formed by the first piece and the second region formed by the casted alloy.
    Type: Application
    Filed: July 11, 2014
    Publication date: June 9, 2016
    Applicant: United Technologies Corporation
    Inventors: John Marcin J., Steven J. Bullied, Dilip M. Shah, Alan D. Cetel
  • Publication number: 20160031006
    Abstract: A method for casting comprising: providing a seed, the seed characterized by: an arcuate form and a crystalline orientation progressively varying along an arc of the form; providing molten material; and cooling and solidifying the molten material so that a crystalline structure of the seed propagates into the solidifying material.
    Type: Application
    Filed: June 5, 2015
    Publication date: February 4, 2016
    Applicant: United Technologies Corporation
    Inventors: Dilip M. Shah, Paul D. Genereux, Alan D. Cetel, John J. Marcin, JR., Steven J. Bullied, Mario P. Bochiechio, Kevin W. Schlichting, Bradford A. Cowles, Carl R. Verner, David U. Furrer, Venkatarama K. Seetharaman
  • Publication number: 20160024925
    Abstract: A process for rejuvenating a turbine disk having a plurality of slots includes the steps of determining a depth of a damaged layer containing M23C6 carbide dissolution; and removing the damaged layer from the slots in accordance with the determined depth.
    Type: Application
    Filed: December 30, 2013
    Publication date: January 28, 2016
    Applicant: United Technologies Corporation
    Inventors: D. Slade Stolz, David Ulrich Furrer, Samir V Patel, Raymond C Benn, Alan D Cetel
  • Publication number: 20160008867
    Abstract: A method comprises: providing a spiral metallic workpiece having a cast structure associated with such spiral; and at least partially flattening the workpiece.
    Type: Application
    Filed: June 24, 2015
    Publication date: January 14, 2016
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventors: Dilip M. Shah, Alan D. Cetel, John J. Marcin, JR., Steven J. Bullied, Carl R. Verner
  • Publication number: 20150328681
    Abstract: An alloy part is cast in a mold (280) having a part forming cavity (292, 294, 296). The method comprises pouring a first alloy into the mold. The pouring causes: a surface (550) of the first alloy in the part forming cavity to raise relative to the part forming cavity; a branch flow of the poured first alloy to pass upwardly through a first portion (304) of a passageway; and the branch flow to pass downwardly through a second portion (310), of the passageway; solidifying some of the first alloy in the passageway to block the passageway while at least some of the first alloy in the part forming cavity remains molten. A second alloy is poured into the mold atop the first alloy and solidified.
    Type: Application
    Filed: December 13, 2013
    Publication date: November 19, 2015
    Applicant: United Technologies Corporation
    Inventors: Steven J. Bullied, Dilip M. Shah, Alan D. Cetel, John J. Marcin
  • Publication number: 20150321249
    Abstract: A method is provided for casting an article such as a blade having an attachment root and an airfoil, the airfoil having a proximal end and a distal end. The method comprises introducing a molten alloy into a mold; and varying a composition of the introduced alloy during the introduction so as to produce a compositional variation.
    Type: Application
    Filed: December 13, 2013
    Publication date: November 12, 2015
    Applicant: United Technologies Corporation
    Inventors: Dilip M. Shah, Alan D. Cetel
  • Patent number: 9174271
    Abstract: A casting system includes a core and a shell positioned relative to the core. A barrier coating is applied on at least one of the core and the shell, and may be applied to both the core and the shell. The barrier coating limits reaction between the casting system and a casting alloy.
    Type: Grant
    Filed: July 2, 2008
    Date of Patent: November 3, 2015
    Assignee: United Technologies Corporation
    Inventors: Kirk C. Newton, Alan D. Cetel, Mario P. Bochiechio, James T. Beals, John Joseph Marcin
  • Patent number: 9138963
    Abstract: A coated article having an improved coating oxidation life includes a superalloy substrate material having a composition which includes sulfur, herein the sulfur is present in an amount less than 1 ppm; and an overlay coating formed over a surface of the substrate material.
    Type: Grant
    Filed: December 14, 2009
    Date of Patent: September 22, 2015
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Alan D. Cetel, Dilip M. Shah
  • Publication number: 20150075745
    Abstract: A casting mold (260) comprises a shell (262) extending from a lower end (264) to an upper end (266) and having: an interior space (280) for casting metal; and an opening (268) for receiving metal to be cast. A plurality of thermocouples (900) are vertically-spaced from each other on the shell.
    Type: Application
    Filed: September 16, 2014
    Publication date: March 19, 2015
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventors: John J. Marcin, JR., Steven J. Bullied, Dilip M. Shah, Alan D. Cetel, Emily K. Kreek
  • Publication number: 20140363305
    Abstract: A method is provided for casting an article such as a blade having an attachment root and an airfoil, the airfoil having a proximal end and a distal end. The method comprises introducing a molten alloy into a mold; and varying a composition of the introduced alloy during the introduction so as to produce a compositional variation.
    Type: Application
    Filed: December 13, 2013
    Publication date: December 11, 2014
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventors: Dilip M. Shah, Alan D. Cetel
  • Publication number: 20140178245
    Abstract: A coated article having an improved coating oxidation life includes a superalloy substrate material having a composition which includes sulfur, herein the sulfur is present in an amount less than 1 ppm; and an overlay coating formed over a surface of the substrate material.
    Type: Application
    Filed: February 26, 2014
    Publication date: June 26, 2014
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventors: Alan D. Cetel, Dilip M. Shah
  • Publication number: 20140166229
    Abstract: A refractory metal core for forming internal features in a turbine engine component has a core formed from a refractory metal material; and the core has at least one blended surface on at least one edge of the core.
    Type: Application
    Filed: December 19, 2012
    Publication date: June 19, 2014
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventors: Albert Rabinovich, Dilip M Shah, Alan D. Cetel, John Joseph Marcin, Max Asterlin
  • Patent number: 8475598
    Abstract: A process for forming a coated substrate comprises providing a nickel base alloy substrate, depositing a chromium coating onto the nickel base alloy substrate and diffusing chromium from said coating into the substrate, applying a MCrAlY coating onto the nickel base alloy substrate and heat treating the substrate with the deposited chromium and the MCrAlY coating so that chromium diffuses into an outer region of the substrate. Further, in accordance with the present invention, a strip process for removing a coating from a substrate broadly comprises the steps of providing a nickel base alloy substrate having chromium diffused into an outer region and a MCrAlY coating deposited over the substrate with the diffused chromium and removing the MCrAlY coating by immersing the nickel base alloy substrate in an acid solution containing a sulfuric acid-hydrochloric acid mixture in water.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: July 2, 2013
    Assignee: United Technologies Corporation
    Inventors: Alan D. Cetel, Curtis Heath Riewe, Dwayne A. Braithwaite
  • Patent number: 8366838
    Abstract: A single crystal alloy for high AN2 applications has a composition consisting essentially of from 4.0 to 10 wt % chromium, from 1.0 to 2.5 wt % molybdenum, up to 5.0 wt % tungsten, from 3.0 to 8.0 wt % tantalum, from 5.5 to 6.25 wt % aluminum, from 6.0 to 17 wt % cobalt, up to 0.2 wt % hafnium, from 4.0 to 6.0 wt % rhenium, from 1.0 to 3.0 wt % ruthenium, and the balance nickel. Further, these single crystal alloys have a total tungsten and molybdenum content in the range of from 1.0 to 7.5 wt %, preferably from 2.0 to 7.0 wt %, a total refractory element content in the range of from 9.0 to 24.5 wt %, preferably from 13 to 22 wt %, a ratio of rhenium to a total refractory element content in the range of from 0.16 to 0.67, preferably from 0.20 to 0.45, a density in the range of from 0.300 to 0.325 lb/in3, and a specific creep strength in the range from 106×103 to 124×103 inches.
    Type: Grant
    Filed: December 9, 2009
    Date of Patent: February 5, 2013
    Assignee: United Technologies Corporation
    Inventors: Venkatarama K. Seetharaman, Alan D. Cetel
  • Patent number: 8323559
    Abstract: A crucible includes a composite of least two materials. The two materials are selected from a group consisting of alumina, calcia, yttria, erbia, gadolinia, magnesia, hafnia, and zirconia in a composition that has better resistance to reaction with hafnium from a molten hafnium-containing alloy than a nominal crucible composition of 70 wt % magnesia and 30 wt % alumina.
    Type: Grant
    Filed: November 5, 2010
    Date of Patent: December 4, 2012
    Assignee: United Technologies Corporation
    Inventors: Mario P. Bochiechio, John Joseph Marcin, Alan D. Cetel, Dilip M. Shah, Kevin W. Schlichting
  • Publication number: 20120156366
    Abstract: A process for forming a coated substrate comprises providing a nickel base alloy substrate, depositing a chromium coating onto the nickel base alloy substrate and diffusing chromium from said coating into the substrate, applying a MCrAlY coating onto the nickel base alloy substrate and heat treating the substrate with the deposited chromium and the MCrAlY coating so that chromium diffuses into an outer region of the substrate. Further, in accordance with the present invention, a strip process for removing a coating from a substrate broadly comprises the steps of providing a nickel base alloy substrate having chromium diffused into an outer region and a MCrAlY coating deposited over the substrate with the diffused chromium and removing the MCrAlY coating by immersing the nickel base alloy substrate in an acid solution containing a sulfuric acid—hydrochloric acid mixture in water.
    Type: Application
    Filed: December 20, 2011
    Publication date: June 21, 2012
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventors: Alan D. Cetel, Curtis Heath Riewe, Dwayne A. Braithwaite
  • Publication number: 20120110848
    Abstract: A method for repairing, refurbishing, or replacing a turbine engine component or sub-component includes the steps of providing a turbine engine component or sub-component having a site to be repaired, refurbished, or replaced providing a repair or replacement material having a sulfur content, which sulfur content is less than 10 ppm, and applying the repair or replacement material to the site on the turbine engine component to effect the repair, the refurbishment, or the replacement.
    Type: Application
    Filed: November 8, 2011
    Publication date: May 10, 2012
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventors: Edward R. Szela, Daniel A. Bales, Alan D. Cetel