Patents by Inventor William R. Sevcik, Jr.

William R. Sevcik, Jr. 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).

  • Coolable airfoil for a rotary machine
    Patent number: 4775296
    Abstract: A coolable airfoil 10 for rotary machines is disclosed. The airfoil has a passage 54 extending spanwisely through the leading edge region 26 of the blade. The first passage has a plurality of trip strips 66s, 66p canted toward the approaching flow and angled with respect to the wall in the leading edge region to turbulently increase the amount of cooling flowed to the forward most portion of the passage in the leading edge region. In one embodiment, a hole 72 in fluid communication with a turning passage 64 in the tip region of the blade downstream of the first passage is in fluid communication with the trailing edge of the blade.
    Type: Grant
    Filed: December 28, 1981
    Date of Patent: October 4, 1988
    Assignee: United Technologies Corporation
    Inventors: Russell A. Schwarzmann, William R. Sevcik, Jr.