Patents by Inventor John Bulic

John Bulic 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).

  • Unitary rear axle housing and method for manufacturing same
    Patent number: 7681426
    Abstract: A method for manufacturing a one piece axle tube housing with an integral spindle includes providing a tube blank, providing the blank with a region of increased thickness, inserting a mandrel having a reduced diameter profile, passing a reducing die over the tube to conform the tube to the shape of the mandrel; and extraction of the mandrel from the tube to cause outward deformation of the tube at specific locations. A further swaging step may be used to form the final spindle structure.
    Type: Grant
    Filed: August 25, 2006
    Date of Patent: March 23, 2010
    Assignee: ArcelorMittal Tubular Products Canada Inc.
    Inventors: James Main, John Bulic
  • Unitary rear axle housing and method for manufacturing same
    Publication number: 20070062241
    Abstract: A method for manufacturing a one piece axle tube housing with an integral spindle includes providing a tube blank, providing the blank with a region of increased thickness, inserting a mandrel having a reduced diameter profile, passing a reducing die over the tube to conform the tube to the shape of the mandrel; and extraction of the mandrel from the tube to cause outward deformation of the tube at specific locations. A further swaging step may be used to form the final spindle structure.
    Type: Application
    Filed: August 25, 2006
    Publication date: March 22, 2007
    Inventors: James Main, John Bulic