The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 08, 2012
Filed:
Jun. 26, 2009
Lars Vinther Kappel, Arhus C, DK;
Michael Christensen, Silkeborg, DK;
Lars Vinther Kappel, Arhus C, DK;
Michael Christensen, Silkeborg, DK;
Vestas Wind Systems A/S, Aarhus N., DK;
Abstract
The present invention relates to an overhead travelling crane () for a nacelle () of a wind turbine, said travelling crane comprising at least a first suspension beam (); a second suspension beam (), said suspension beams being arranged with a space between them; a cross beam (), said cross beam being movably connected to said first and second suspension beams so that the cross beam can be moved along the suspension beams; and at least one lifting device (), said lifting device being movably connected to the cross beam. Said first and second suspension beams are parts of concentric circles, said -concentric circles sharing the same center and having different radii. The cross beam may be inclined.