Patents by Inventor Daniel Francis Paulonis

Daniel Francis Paulonis 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).

  • Refractory metal core coatings
    Patent number: 7575039
    Abstract: A refractory metal core for use in a casting system has a coating for providing oxidation resistance during shell fire and protection against reaction/dissolution during casting. In a first embodiment, the coating includes at least one oxide and a silicon containing material. In a second embodiment, the coating includes an oxide selected from the group of calcia, magnesia, alumina, zirconia, chromia, yttria, silica, hafnia, and mixtures thereof. In a third embodiment, the coating includes a nitride selected from the group of silicon nitride, sialon, titanium nitride, and mixtures thereof. Other coating embodiments are described in the disclosure.
    Type: Grant
    Filed: October 15, 2003
    Date of Patent: August 18, 2009
    Assignee: United Technologies Corporation
    Inventors: James T. Beals, Joshua Persky, Dilip M. Shah, Venkat Seetharaman, Sudhangshu Bose, Jacob Snyder, Keith Santeler, Carl Verner, Stephen D. Murray, John Marcin, Dinesh Gupta, Daniel A. Bales, Daniel Francis Paulonis, Glenn Cotnoir, John Wiedemer
  • REFRACTORY METAL CORE COATINGS
    Publication number: 20090114797
    Abstract: A refractory metal core for use in a casting system has a coating for providing oxidation resistance during shell fire and protection against reaction/dissolution during casting. In a first embodiment, the coating includes at least one oxide and a silicon containing material. In a second embodiment, the coating includes an oxide selected from the group of calcia, magnesia, alumina, zirconia, chromia, yttria, silica, hafnia, and mixtures thereof. In a third embodiment, the coating includes a nitride selected from the group of silicon nitride, sialon, titanium nitride, and mixtures thereof. Other coating embodiments are described in the disclosure.
    Type: Application
    Filed: October 15, 2003
    Publication date: May 7, 2009
    Inventors: James T. Beals, Joshua Persky, Dilip M. Shah, Venkat Seetharaman, Sudhangshu Bose, Jacob Snyder, Keith Santeler, Carl Verner, Stephen D. Murray, John J. Marcin, Dinesh Gupta, Daniel A. Bales, Daniel Francis Paulonis, Glenn Cotnoir, John Wiedemer
  • Composite interlayer for diffusion bonding
    Patent number: 4038041
    Abstract: An interlayer for transient liquid phase diffusion bonding of the nickel, cobalt and iron alloys is provided between surfaces to be joined as a thin lamellar composite.
    Type: Grant
    Filed: December 19, 1975
    Date of Patent: July 26, 1977
    Assignee: United Technologies Corporation
    Inventors: David Scott Duvall, Daniel Francis Paulonis
  • Interlayer for transient liquid phase diffusion bonding
    Patent number: 4005988
    Abstract: A reduced melting point interlayer for transient liquid phase diffusion bonding of the nickel, cobalt and iron alloys is provided as a thin coating integral with one or more of the surfaces to be joined.
    Type: Grant
    Filed: December 19, 1975
    Date of Patent: February 1, 1977
    Assignee: United Technologies Corporation
    Inventors: Daniel Francis Paulonis, David Scott Duvall, Gerard Casimer Sikorowicz