Patents by Inventor Lawrence Grycko

Lawrence Grycko 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).

  • Integral backing ring for stub shaft weld repairs of rotating equipment and related method
    Publication number: 20080011812
    Abstract: A stub shaft section adapted to be welded to a re-used end portion of a rotor shaft, the stub shaft section including a hollow cylindrical member having a substantially uniform inner diameter and first chamfered end adapted to form one side of a substantially V-shaped weld groove, and an integral backing ring extending axially beyond the chamfered end, the backing ring having a circumferential recess in a radially outer surface thereof.
    Type: Application
    Filed: November 4, 2005
    Publication date: January 17, 2008
    Applicant: General Electric Company
    Inventors: Lawrence Grycko, John Nolan, John Sassatelli, Mark Burnett, Carter Cook, David Parker
  • Narrow groove gas shielding and related method
    Publication number: 20070164001
    Abstract: A shielding gas supply tube for delivering shielding gas to a welding arc at the bottom of a narrow groove includes at least one substantially hollow, elongated planar tube having a gas supply end and a gas discharge end; a pair of gas passageways within the tube, isolated from each other, extending between the supply end and the discharge end, and a pair of gas supply fittings at the supply end communicating separately with the pair of gas passageways.
    Type: Application
    Filed: January 18, 2006
    Publication date: July 19, 2007
    Applicant: General Electric Company
    Inventors: Lawrence Grycko, John Nolan, Andrew Tomko
  • Method for fabricating a rotor shaft
    Publication number: 20070114209
    Abstract: A method for fabricating a rotor shaft using a welding process. The method includes positioning a first rotor shaft section adjacent a second rotor shaft section, and using a submerged arc welding process with an included weld preparation angle of between about 0° and about 30° to join the first and second rotor shaft sections together.
    Type: Application
    Filed: November 23, 2005
    Publication date: May 24, 2007
    Inventors: John Nolan, Lawrence Grycko, John Sassatelli