Patents by Inventor Stephen A. Welhoelter

Stephen A. Welhoelter 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).

  • Apparatus and method for reducing relative motion between blade and rotor in steam turbine
    Patent number: 4725200
    Abstract: An apparatus and method for use in steam turbines of the type employing axial entry blades comprises a plurality of resilient rings disposed in a generally axially extending slot in the base of each blade root. The rings urge each root radially outward so as to minimize blade flop during turning gear operation.
    Type: Grant
    Filed: February 24, 1987
    Date of Patent: February 16, 1988
    Assignee: Westinghouse Electric Corp.
    Inventor: Stephen A. Welhoelter