Patents by Inventor Thomas Praisner

Thomas Praisner 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).

  • Airfoil array with an endwall depression and components of the array
    Publication number: 20070258818
    Abstract: An airfoil array includes a laterally extending endwall 56 with a series of airfoils such as 28 or 38 projecting from the endwall. The airfoils cooperate with the endwall to define a series of fluid flow passages 74. The endwall has a trough 100 toward a pressure side of the passage and a more elevated profile toward a suction side of the passage for reducing secondary flow losses.
    Type: Application
    Filed: May 2, 2006
    Publication date: November 8, 2007
    Inventors: Eunice Allen-Bradley, Eric Grover, Thomas Praisner, Joel Wagner
  • Blade or vane with a laterally enlarged base
    Publication number: 20070258817
    Abstract: A blade or vane includes a platform 130 and an airfoil 132 extending from the platform. The airfoil has a pressure surface offset in a first direction D1 from a part span mean camber line 148, a suction surface offset in a second direction D2 from the part span mean camber line, and a base 146 that is laterally enlarged in the first direction for reducing secondary flow losses.
    Type: Application
    Filed: May 2, 2006
    Publication date: November 8, 2007
    Inventors: Eunice Allen-Bradley, Eric Grover, Thomas Praisner
  • Airfoil array with an endwall protrusion and components of the array
    Publication number: 20070258819
    Abstract: An airfoil array includes a laterally extending endwall 56 with a series of airfoils such as 28, or 38 projecting from the endwall. The airfoils cooperate with the endwall to define a series of fluid flow passages 74. The endwall has a hump 84 toward a pressure side of the passage and a less elevated profile toward a suction side of the passage for reducing secondary flow losses.
    Type: Application
    Filed: May 2, 2006
    Publication date: November 8, 2007
    Inventors: Eunice Allen-Bradley, Eric Grover, Thomas Praisner, Joel Wagner