Patents Assigned to Ballscrews & Actuators Co., Inc.
  • Patent number: 4896552
    Abstract: An improved ball screw and follower and method of making the same includes one or more helical grooves along the leadscrew with mating grooves and pitch within the follower to form a course therebetween for the rotational positioning therein of a plurality of balls in rolling engagement with the leadscrew and follower. Backlash is substantially eliminated by cutting a central section of the follower along the land between adjacent grooves in the follower for at least one turn to form thereby a torsionally-resilient section that torsionally couples the resulting leading and trailing sections of the follower together in a manner that resiliently flexes along the course in which the balls rotate.
    Type: Grant
    Filed: January 19, 1988
    Date of Patent: January 30, 1990
    Assignee: Ballscrews & Actuators Co., Inc.
    Inventor: Joseph P. Virga