Patents by Inventor Alessandro Lourenco Leitäo

Alessandro Lourenco Leitäo 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).

  • Patent number: 7043811
    Abstract: In one embodiment of the invention, a method of removing a key ring stud assembly comprising a key ring portion and a stud, from a threaded aperture of a gas turbine engine component is disclosed. The method comprises forming a tack weld on the key ring portion of the key ring stud assembly. The method also comprises welding an extractor to the tack weld; attaching a puller to the extractor welded to the tack weld; and removing the key ring portion by pulling on the puller, wherein the stud remains in the threaded aperture. The method further comprises assembling two nuts to the stud. Advantageously, the stud may be removed using a wrench or other suitable tool without damaging the threaded aperture of the gas turbine engine component.
    Type: Grant
    Filed: March 22, 2004
    Date of Patent: May 16, 2006
    Assignee: General Electric Company
    Inventors: Alessandro Lourenco Leitäo, William H. Harrison, Claudio J. Heinen