Patents by Inventor Larry L. Zeller

Larry L. Zeller 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).

  • Rotor winding having a braze joint spaced apart from stress concentration
    Patent number: 9455613
    Abstract: A winding for a rotor for use in an electrical generator utilized in the power generation industry. The winding includes a plurality of axial sections and a plurality of transversely oriented end arc sections. An integrated leg section extends from each end arc section to form an associated corner section at an intersection of each leg section and associated end arc section. Each leg section is affixed to an associated axial section at a joint that is spaced apart from an associated corner section such that the joint is not subjected to stress concentration which occurs at the associated corner section.
    Type: Grant
    Filed: July 8, 2014
    Date of Patent: September 27, 2016
    Assignee: SIEMENS ENERGY, INC.
    Inventors: Mark A. Grobe, David Earl Hulsey, James V. Johnson, Robert F. Lemke, Robert W. Ralph, Christian T. Schneider, Stephen T. Soto, Randy Edward Whitener, Larry L. Zeller
  • ROTOR WINDING HAVING A BRAZE JOINT SPACED APART FROM STRESS CONCENTRATION
    Publication number: 20150028702
    Abstract: A winding for a rotor for use in an electrical generator utilized in the power generation industry. The winding includes a plurality of axial sections and a plurality of transversely oriented end arc sections. An integrated leg section extends from each end arc section to form an associated corner section at an intersection of each leg section and associated end arc section. Each leg section is affixed to an associated axial section at a joint that is spaced apart from an associated corner section such that the joint is not subjected to stress concentration which occurs at the associated corner section.
    Type: Application
    Filed: July 8, 2014
    Publication date: January 29, 2015
    Inventors: Mark A. Grobe, David Earl Hulsey, James V. Johnson, Robert F. Lemke, Robert W. Ralph, Christian T. Schneider, Stephen T. Soto, Randy Edward Whitener, Larry L. Zeller
  • Inlet guidevanes for generator rotors
    Patent number: 7456542
    Abstract: The present invention provides for a method of installing a guidevane 20 to an end plate 6 that comprises manufacturing a guidevane with at least one tab 30 located on a top length-wise edge of the guidevane and multiple tab slots 32 located on the length-wise edge.
    Type: Grant
    Filed: October 6, 2005
    Date of Patent: November 25, 2008
    Assignee: Siemens Energy, Inc.
    Inventors: Ronald P. Enos, Larry L. Zeller
  • Axial zone block assembly for electrical generators
    Patent number: 5258682
    Abstract: A zone block assembly for maintaining a pressure barrier in an end area of a rotor in an electrodynamic system such as an electrical generator includes a zone block which is constructed and arranged to be positioned between a rotor and an end winding in an electrodynamic system to maintain a pressure barrier; and a spring in contact with the zone block for biasing the zone block with respect to the rotor. The spring is fabricated from a material which is non-metallic, so that it will not create destructive metallic projectiles within the electrodynamic system if it breaks as a result of fatigue.
    Type: Grant
    Filed: November 16, 1992
    Date of Patent: November 2, 1993
    Assignee: Westinghouse Electric Corp.
    Inventors: Robert T. Ward, Cheryl A. Costa, Larry L. Zeller, Albert C. Sismour, Jr.