Patents by Inventor David A. Lange

David A. Lange 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).

  • Ball nut and screw assemby with enhanced radial load capacity
    Patent number: 5467662
    Abstract: A ball nut and screw assembly has a conventional helical raceway and balls received therein that react load through the centerline of the assembly and an added helical raceway and balls received therein that react radial load on the ball nut to the relief of the first mentioned raceway and balls.
    Type: Grant
    Filed: April 20, 1994
    Date of Patent: November 21, 1995
    Assignee: Thomson Saginaw Ball Screw Company, Inc.
    Inventors: David A. Lange, Robert L. Benton, William E. Welling, Peter R. Mugglestone
  • End cap for heat exchangers
    Patent number: D274256
    Type: Grant
    Filed: November 5, 1980
    Date of Patent: June 12, 1984
    Inventors: David Lange, Leland Lange