Patents Assigned to Alian International AG
  • Self-locking unit
    Patent number: 4893977
    Abstract: An improved self-locking nut comprising a threaded upper collar provided with longitudinal slots defining in the collar a plurality of circular arc segments compressed by a helical external spring. The slots may widen upwardly in V or U-shape to prevent the segments from contacting one another.
    Type: Grant
    Filed: July 25, 1989
    Date of Patent: January 16, 1990
    Assignee: Alian International AG
    Inventor: Giancarlo Tramezzani