Patents by Inventor David A. Cvelbar

David A. Cvelbar 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).

  • Gas turbine engine case with intergral shroud support ribs
    Patent number: 5115642
    Abstract: Inner case 14 is supported from outer case 12 through combined vanes 32. Substantial torque loading is transferred leading to high stress levels at the roots of the vanes. Shrouds 22, 28 are thinned between support ring 20 and conical portion 18. Ribs 48 are located coincident with the radial extension of the vanes 32. With the cambered vanes the high stress location is remote from the vane ends, and flexibility is achieved at such location.
    Type: Grant
    Filed: January 7, 1991
    Date of Patent: May 26, 1992
    Assignee: United Technologies Corporation
    Inventors: David A. Cvelbar, Anthony Rubino