Patents by Inventor Bertil Stenberg

Bertil Stenberg 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).

  • Coupling sleeve for connection of a threaded rock bolt to an impact rock drilling machine
    Publication number: 20060078372
    Abstract: Coupling sleeve for connecting a threaded rock bolt (1) to an impact rock drilling machine (2) comprising a first part (3) provided with an internal thread (4) for connection of the rock bolt (1) and a second part (5) provided with an internal thread (6) for connection of the rock drilling machine (2), whereby the second part (5) comprises a transversely to a longitudinal axis (9) on the coupling sleeve arranged locking device (7) which cooperates with a region (8) on the rock drilling machine (2) for preventing that the coupling sleeve and the rock drilling machine (2) are separated.
    Type: Application
    Filed: January 26, 2004
    Publication date: April 13, 2006
    Inventors: Morgan Kanflod, Fredrik Oberg, Bertil Stenberg