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.

Date of Patent:
Mar. 19, 2024

Filed:

Mar. 31, 2020
Applicant:

Liftra Ip Aps, Aalborg, DK;

Inventor:

Per Eske Fenger, Terndrup, DK;

Assignee:

Liftra IP APS, Aalborg, DK;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B66C 23/20 (2006.01); B66C 23/18 (2006.01); F03D 13/10 (2016.01);
U.S. Cl.
CPC ...
B66C 23/207 (2013.01); B66C 23/185 (2013.01); F03D 13/10 (2016.05); F05B 2230/61 (2013.01);
Abstract

The crane is hoisted from the ground to the nacelle by operating a cable winch at ground whereby a cable extends from the crane to a roller at the nacelle and to the cable winch. A hoist block with the roller is arranged on a jib at a first hoist block position above a second hinge part of a crane base and extended in horizontal direction from the nacelle. When a first hinge part of the crane is positioned at a corresponding second hinge part of the crane base, the cable extends in a downward direction directly from the roller of the hoist block and through a central opening in a pedestal. After mutual connection of the first and second hinge parts, the hoist block is removed from its first hoist block position.


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