Patents by Inventor David M. Donegan

David M. Donegan 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).

  • Method for welding a differential housing
    Patent number: 6744004
    Abstract: A method of welding an axle housing surface to a blank surface includes generated heat in one of the two components. Heat is generated from at least one of these surfaces at their interface sufficient to weld them together. The surfaces are then applied together.
    Type: Grant
    Filed: February 9, 2001
    Date of Patent: June 1, 2004
    Assignee: Meritor Heavy Vehicle Technology, LLC
    Inventors: Joseph Melekian, Robert H. Davis, Steven M. Foster, Nathan Allen Clark, David M. Donegan, Bogdan Kolodziej, James Edward Levinson, George Richard Thatcher, William T. Polesnak, Kenneth Kinfun Yu
  • Method for welding an axle housing
    Publication number: 20020108467
    Abstract: A method of welding an axle housing surface to a blank surface includes generated heat in one of the two components. Heat is generated from at least one of these surfaces at their interface sufficient to weld them together. The surfaces are then applied together.
    Type: Application
    Filed: February 9, 2001
    Publication date: August 15, 2002
    Inventors: Joseph Melekian, Robert H. Davis, Steven M. Foster, Nathan Allen Clark, David M. Donegan, Bogdan Kolodziej, James Edward Levinson, Georger Richard Thatcher, William T. Polesnak, Kenneth Kinfun Yu