Patents Represented by Law Firm Armstromg, Westerman, Hattori, McLeland & Naughton
  • Synchronization restoring system
    Patent number: 5952808
    Abstract: Synchronization of the drive bars of a servo transfer system is safely restored, while avoiding mechanical damage as much as possible.A synchronization position C for all the drive bars is determined from the respective present positions B of the drive bars and the respective deviations of the present positions B from the synchronization position C are determined. Then, servo motors for all the drive bars are so controlled that the drive bars move the distances corresponding to their respective deviations within the same period of time.
    Type: Grant
    Filed: May 29, 1998
    Date of Patent: September 14, 1999
    Assignee: Komatsu Ltd.
    Inventor: Naoyuki Umeji