Patents by Inventor Tapio UKONJÄRVI

Tapio UKONJÄRVI 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).

  • Rotation unit, rock drilling unit and method for rock drilling
    Patent number: 9951559
    Abstract: A rotation unit includes a main shaft that is rotated around its longitudinal axis by a rotating motor. The main shaft includes a tubular outer shaft and an inner shaft arranged inside the outer shaft. The outer shaft is supported by a body of the rotation unit and is arranged to transmit axial forces, whereas the inner shaft is arranged to transmit rotation and torque. A rock drilling unit and method for rock drilling is also provided.
    Type: Grant
    Filed: October 9, 2015
    Date of Patent: April 24, 2018
    Assignee: Sandvik Mining and Construction Oy
    Inventor: Tapio Ukonjärvi
  • ROTATION UNIT, ROCK DRILLING UNIT AND METHOD FOR ROCK DRILLING
    Publication number: 20160102498
    Abstract: The disclosure relates to a rotation unit, rock drilling unit and method for rock drilling. The rotation unit includes a main shaft that is rotated around its longitudinal axis by a rotating motor. The main shaft includes a tubular outer shaft and an inner shaft arranged inside the outer shaft. The outer shaft is supported by a body of the rotation unit and is configured to transmit axial forces, whereas the inner shaft is configured to transmit rotation and torque.
    Type: Application
    Filed: October 9, 2015
    Publication date: April 14, 2016
    Inventor: Tapio UKONJÄRVI