Patents Assigned to Thomson Saginaw Ball Screw, Inc.
  • Broaching device and method
    Patent number: 5615467
    Abstract: A broaching device and method for enlarging an opening, hollow or cavity in a workpiece comprises a broaching tool which is mounted on, or formed on, either the shaft or the nut of a ballscrew drive unit which includes a ballscrew shaft and a ballscrew nut.
    Type: Grant
    Filed: September 5, 1995
    Date of Patent: April 1, 1997
    Assignee: Thomson Saginaw Ball Screw, Inc.
    Inventors: Mark J. Simmons, Steven G. Parsons