Patents by Inventor Torgny C. B. Lagerqvist

Torgny C. B. Lagerqvist 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).

  • Variably tensioned roll-to-shaft clamping means
    Patent number: 4208147
    Abstract: A roll device includes a roll shaft and at least one roll ring mounted on the roll shaft. A lock means is securable to the roll shaft. A centering element is disposed between the roll ring and the roll shaft to center the roll ring. A first resilient element is axially interposed between the lock means and the centering element. A second resilient element is axially interposed between the lock means and the roll ring. The lock means applies axial force to the first and second resilient elements to position the centering element relative to the roll ring and roll shaft, and clamp the roll ring to the roll shaft for common rotation therewith. The spring rates of the first resilient element can be made less than that of the second resilient element to regulate the relative amount of axial forces applied to these elements.
    Type: Grant
    Filed: March 21, 1978
    Date of Patent: June 17, 1980
    Assignee: Sandvik Aktiebolag
    Inventors: Sture Giege, Torgny C. B. Lagerqvist
  • Roll device
    Patent number: RE31554
    Abstract: A roll device includes a roll shaft and at least one roll ring mounted on the roll shaft. A lock means is securable to the roll shaft. A centering element is disposed between the roll ring and the roll shaft to center the roll ring. A first resilient element is axially interposed between the lock means and the centering element. A second resilient element is axially interposed between the lock means and the roll ring. The lock means applies axial force to the first and second resilient elements to position the centering element relative to the roll ring and roll shaft, and clamp the roll ring to the roll shaft for common rotation therewith. The spring rates of the first resilient element can be made less than that of the second resilient element to regulate the relative amount of axial forces applied to these elements.
    Type: Grant
    Filed: January 21, 1981
    Date of Patent: April 17, 1984
    Assignee: Sandvik Aktiebolag
    Inventors: Sture Giege, Torgny C. B. Lagerqvist