Patents by Inventor Robert T. Hagaman

Robert T. Hagaman 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 core structure for an electromagnetic rotating machine
    Patent number: 5121022
    Abstract: A rotor for an electromagnetic energy conversion device, which rotor includes a core composed of a stack of thin plates, is clamped between two end plates by means of a plurality of end clamping fingers. Each clamping finger is initially mounted on a respective end plate and is then pressed against the core by a clamping force applied via the end plates.
    Type: Grant
    Filed: August 29, 1990
    Date of Patent: June 9, 1992
    Assignee: Westinghouse Electric Corp.
    Inventors: John B. Sargeant, Lorenzo Ramirez, Robert T. Hagaman
  • Apparatus and method for thermal balancing of the rotor of a dynamo-electric machine
    Patent number: 4922147
    Abstract: An apparatus and method are provided for thermally balancing the rotor of a dynamo-electric machine by adjusting the flow of coolant through the rotor. According to one embodiment of the invention, the cooling flow is adjusted by inserted baffles into the axial coolant flow passages in the body portion of the rotor. According to another embodiment of the invention the cooling flow is adjusted by inserting adjustable orifices into the radial cooling passages in the body portion of the rotor.
    Type: Grant
    Filed: November 25, 1988
    Date of Patent: May 1, 1990
    Assignee: Westinghouse Electric Corp.
    Inventors: Albert C. Sismour, Jr., Robert T. Hagaman, Sui-Chun Ying
  • Pole face slot filler
    Patent number: 4900964
    Abstract: A pole face slot filler (26,28) for insertion into a pole face slot formed in a pole region (18) of a generator rotor, the filler (26,28) having a U-shaped cross section and being composed of a base portion (36) and two leg portions (38) extending from the base portion (36) and forming the legs of the U-shaped cross section, wherein the filler (26,28) is configured and dimensioned to achieve a press fit in the pole face slot.
    Type: Grant
    Filed: January 11, 1989
    Date of Patent: February 13, 1990
    Assignee: Westinghouse Electric Corp.
    Inventors: Sui-Chun Ying, Robert T. Hagaman
  • Wedge locking device in a radially ventilated rotor
    Patent number: 4739207
    Abstract: A method and apparatus for locking the wedges used in a dynamoelectric machine having a radically ventilated rotor keys each wedge to its respective damper bar. By inserting a solid key in a selected keyway proximate to a point midway along the length of the rotor, and inserting split keys elsewhere, accumulated axial migration of the wedges relative to their respective damper bar is limited thereby ensuring adequate ventilation through the radically extending ducts.
    Type: Grant
    Filed: February 20, 1987
    Date of Patent: April 19, 1988
    Assignee: Westinghouse Electric Corp.
    Inventors: Sui-Chun Ying, Robert T. Hagaman