Patents by Inventor Benjamin P. Swanson

Benjamin P. Swanson 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: 9186757
    Abstract: A method of repairing a turbine blade having a radially extending outer wall defining an internal cavity width and a blade tip. The method comprises removing at least a portion of the blade tip to form a repair surface and providing a tip cap having a radially outer side with an outer width that may be less than the internal cavity width, and having a radially inner side with an inner width that is substantially equal to or greater than the internal cavity width. The tip cap is positioned at the repair surface, and the tip cap is welded to the repair surface using a ductile welding material. A cap peripheral portion is formed by build-up welding around the tip cap, and a squealer portion is formed by build-up welding on the cap peripheral portion.
    Type: Grant
    Filed: May 9, 2012
    Date of Patent: November 17, 2015
    Assignee: Siemens Energy, Inc.
    Inventors: Mrinal Munshi, Ching-Pang Lee, Benjamin P. Swanson, Petya M. Georgieva, James A. Morin
  • Publication number: 20130298400
    Abstract: A method of repairing a turbine blade having a radially extending outer wall defining an internal cavity width and a blade tip. The method comprises removing at least a portion of the blade tip to form a repair surface and providing a tip cap having a radially outer side with an outer width that may be less than the internal cavity width, and having a radially inner side with an inner width that is substantially equal to or greater than the internal cavity width. The tip cap is positioned at the repair surface, and the tip cap is welded to the repair surface using a ductile welding material. A cap peripheral portion is formed by build-up welding around the tip cap, and a squealer portion is formed by build-up welding on the cap peripheral portion.
    Type: Application
    Filed: May 9, 2012
    Publication date: November 14, 2013
    Inventors: Mrinal Munshi, Ching-Pang Lee, Benjamin P. Swanson, Petya M. Georgieva, James A. Morin