Patents by Inventor Ove V. E. Nilsson

Ove V. E. Nilsson 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).

  • Rock working tool
    Patent number: 5058690
    Abstract: Rock working tool for a tunnel boring machine. The tool comprises a shaft (34) with a central hole (35). A tool part (8,9) is rotatably journalled on the shaft. The tool is cooled through the arrangement of channels (40,41,42) in the tool for conducting cooling liquid from a pressure liquid source (22) to the central hole and via the channel (42) which flushes directly on the tool part (8,9).
    Type: Grant
    Filed: April 27, 1990
    Date of Patent: October 22, 1991
    Assignee: Atlas Copco Construction and Mining Technique AB
    Inventors: Carl S. M. Hartwig, Ove V. E. Nilsson