Patents by Inventor Henry Yazdzik, Jr.

Henry Yazdzik, 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).

  • Method for making gas turbine engine blade attachment slots
    Patent number: 5430936
    Abstract: Blade attachment slots for gas turbine engines are prepared by grinding to a stepped, generally straight sided configuration, semi-finish grinding to an envelope about 0.005 inches to 0.010 inches above the blueprint configuration, and finishing by broaching. This reduces the overall cost of the manufacturing process, permits a more economical use of existing broach machines, and allows greater versatility for short model runs and "just-in-time" production.
    Type: Grant
    Filed: December 27, 1993
    Date of Patent: July 11, 1995
    Assignee: United Technologies Corporation
    Inventors: Henry Yazdzik, Jr., Gordon M. Reed, Vernon E. Estes, Herbert L. Walker