Patents by Inventor Hubert E. Paprotna

Hubert E. Paprotna 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).

  • ABRADABLE LABYRINTH TOOTH SEAL VANE SHROUD THROUGH FLOW-PLATFORM COVER
    Publication number: 20090142189
    Abstract: A seal assembly (52, 54) for a gas turbine engine (10). The seal assembly (52, 54) includes a first seal member (40) including an abradable structure having at least first and second seal portions (58, 64) radially spaced from each other, and a second seal member (44) including first and second seal surfaces (56, 62) located in facing relationship to the first and second seal portions (58, 64), respectively. The first seal member (40) is formed of a honeycomb structure, and the first seal portion (58) of the first seal member (40) is a thin fin-like structure having a width in the axial direction of the turbine engine (10) that is less than the width of the second seal portion (64) in the axial direction.
    Type: Application
    Filed: February 13, 2009
    Publication date: June 4, 2009
    Inventors: Joshua D. Kovac, Hubert E. Paprotna
  • Abradable labyrinth tooth seal
    Publication number: 20070273104
    Abstract: A seal assembly (52, 54) for a gas turbine engine (10). The seal assembly (52, 54) includes a first seal member (40) including an abradable structure having at least first and second seal portions (58, 64) radially spaced from each other, and a second seal member (44) including first and second seal surfaces (56, 62) located in facing relationship to the first and second seal portions (58, 64), respectively. The first seal member (40) is formed of a honeycomb structure, and the first seal portion (58) of the first seal member (40) is a thin fin-like structure having a width in the axial direction of the turbine engine (10) that is less than the width of the second seal portion (64) in the axial direction.
    Type: Application
    Filed: May 26, 2006
    Publication date: November 29, 2007
    Inventors: Joshua D. Kovac, Hubert E. Paprotna