Patents by Inventor Ronald M. Leachman

Ronald M. Leachman 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).

  • Methods for producing and mounting balance rings to vehicular electric machines
    Patent number: 8276255
    Abstract: Methods for fabricating a balance ring for a vehicular electric machine are provided. In one embodiment, the method includes the steps of providing a first metal layer having a first planar surface, providing a second metal layer having a second planar surface, cladding the second planar surface to the first planar surface to form a composite structure, and removing a portion of the composite structure to form an annular ring.
    Type: Grant
    Filed: September 7, 2011
    Date of Patent: October 2, 2012
    Assignee: GM Global Technology Operations LLC
    Inventors: Ronald M. Leachman, Margarita Thompson
  • BALANCE RING FOR A VEHICULAR ELECTRIC MACHINE AND METHODS FOR THE PRODUCTION THEREOF
    Publication number: 20110314659
    Abstract: Methods for fabricating a balance ring for a vehicular electric machine are provided. In one embodiment, the method includes the steps of providing a first metal layer having a first planar surface, providing a second metal layer having a second planar surface, cladding the second planar surface to the first planar surface to form a composite structure, and removing a portion of the composite structure to form an annular ring.
    Type: Application
    Filed: September 7, 2011
    Publication date: December 29, 2011
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: RONALD M. LEACHMAN, MARGARITA THOMPSON
  • FRICTION DAMPED GEARS
    Publication number: 20100294063
    Abstract: One exemplary embodiment includes a transfer gear that carries a friction damping component that damps vibrations in the gear. The friction damping component may be carried on or in a hub, a web, or both the hub and the web, and may include at least one non-bonded surface that contacts an adjacent surface.
    Type: Application
    Filed: May 22, 2009
    Publication date: November 25, 2010
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: James G. Schroth, Ronald M. Leachman, John E. Carsley, Shung H. Sung
  • BALANCE RING FOR A VEHICULAR ELECTRIC MACHINE
    Publication number: 20100231064
    Abstract: An electric machine for deployment in a vehicle, with the electric machine having a housing is provided. The electric machine comprises a stator assembly coupled to the housing, and a rotor assembly disposed within the stator assembly and configured to rotate relative thereto. A balance ring is coupled to an end of the rotor assembly and is configured to rotate therewith.
    Type: Application
    Filed: March 11, 2009
    Publication date: September 16, 2010
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: RONALD M. LEACHMAN, MARGARITA THOMPSON