Patents by Inventor Lars-Goran Andersson

Lars-Goran 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 arrangement for attachment and/or disassembly/assembly of a tunnel thruster
    Patent number: 8448591
    Abstract: A method and an assembly/disassembly arrangement for a tunnel thruster unit includes a thruster unit and a tunnel, a first attachment arrangement for fitting of said thruster unit to the tunnel and at least one further attachment arrangement for safe fitting of the thruster unit in the tunnel. A further attachment arrangement is in the form of a first interface device fixedly attached to and protruding from attached to the inside of the tunnel wall and a second interface device fixedly attached to the thruster unit.
    Type: Grant
    Filed: April 2, 2009
    Date of Patent: May 28, 2013
    Assignee: Rolls-Royce Aktiebolag
    Inventor: Lars-Goran Andersson
  • METHOD AND ARRANGEMENT FOR ATTACHMENT AND/OR DISASSEMBLY/ASSEMBLY OF A TUNNEL THRUSTER
    Publication number: 20110036283
    Abstract: A method and an assembly/disassembly arrangement for a tunnel thruster unit includes a thruster unit and a tunnel, a first attachment arrangement for fitting of said thruster unit to the tunnel and at least one further attachment arrangement for safe fitting of the thruster unit in the tunnel. A further attachment arrangement is in the form of a first interface device fixedly attached to and protruding from attached to the inside of the tunnel wall and a second interface device fixedly attached to the thruster unit.
    Type: Application
    Filed: April 2, 2009
    Publication date: February 17, 2011
    Applicant: ROLLS-ROYCE AKTIEBOLAG
    Inventor: Lars-Goran Andersson
  • 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
  • Method And Auxiliary Device For Disassembly/Assembly Of A Tunnel Thruster
    Publication number: 20070289516
    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: Application
    Filed: April 12, 2005
    Publication date: December 20, 2007
    Inventor: Lars-Goran Andersson