Patents by Inventor Lyle B. Speigel

Lyle B. Speigel 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).

  • Process of welding gamma prime-strengthened nickel-base superalloys
    Patent number: 6652677
    Abstract: A process for welding superalloys, and particularly articles formed of gamma prime-strengthened nickel-base superalloys whose chemistries and/or microstructures differ. The process entails forming the faying surface of at least one of the articles to have a cladding layer of a filler material. The filler material may have a composition that is different from both of the articles, or the same as one of the articles. The cladding layer is machined to promote mating of the faying surfaces, after which the faying surfaces are mated and the articles welded together. After cooling, the welded assembly is free of thermally-induced cracks.
    Type: Grant
    Filed: December 4, 2001
    Date of Patent: November 25, 2003
    Assignee: General Electric Company
    Inventors: Lyle B. Speigel, Raymond Alan White, John Thomas Murphy, Daniel Anthony Nowak