Patents by Inventor Nashed A. Youssef

Nashed A. Youssef 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).

  • Fan blade axial retention device
    Patent number: 5067877
    Abstract: A fan blade retention device includes a retaining flange (18) located aft of the blade fixing element (7). The flange (18) abuts an outwardly facing circumferential groove (13) located between the flange (18) and the female half of the blade fixing element (10). The groove (13) is large enough to allow the blade fixing element (7) machining tool to be removed. The fan blade (28) includes an extension (21) of the blade root (11) on the aft side of the blade (28). When the blade root (11) is fully received within the female half of the blade fixing element (10), the blade extension (21) spans the width (20) of the groove and contacts the flange (18), thereby preventing the fan blade (28) from traveling aft.
    Type: Grant
    Filed: September 11, 1990
    Date of Patent: November 26, 1991
    Assignee: United Technologies Corporation
    Inventor: Nashed A. Youssef