Patents by Inventor Lars-Göran Andersson

Lars-Göran Andersson 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).

  • Method and auxiliary device for disassembly/assembly of a tunnel thruster
    Patent number: 7549903
    Abstract: The present invention relates to a method and an auxiliary device in connection with disassembly and/or assembly of a tunnel thruster unit by use of the auxiliary device (1) to guide the thruster unit (2) and its movement during disassembly/assembly inside the tunnel (4), the thruster unit (2) thereafter being led away through the tunnel (4), said auxiliary device (1) being removably fixed at the thruster unit (2) before final disassembly, such that the auxiliary device (1) controls the movement during disassembly/assembly, mainly by compressive forces.
    Type: Grant
    Filed: April 12, 2005
    Date of Patent: June 23, 2009
    Assignee: Rolls-Royce Aktiebolag
    Inventor: Lars-Göran Andersson