Patents by Inventor Jerry Cullen

Jerry Cullen 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).

  • Composite brake drum
    Patent number: 6241056
    Abstract: A composite brake drum for a motor vehicle or the like. The brake drum has a drum body that is comprised of a first material, preferably a cast metal, such as gray iron. The drum body has a cylindrical section, a shoulder, and a mounting face. The brake drum also includes an annular band formed from a second material, preferably a stamped metal such as steel. The annular band encircles the cylindrical section of the drum body. The steel annular band is positioned in a mold apparatus and molten iron is introduced into a mold cavity defined thereby. The mold and annular band are maintained in a static condition during the casting process.
    Type: Grant
    Filed: December 29, 1998
    Date of Patent: June 5, 2001
    Assignee: Hayes Lemmerz International, Inc.
    Inventors: Jerry Cullen, Ross S. Hill, James Wieland