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:
Dec. 23, 2025
Filed:
May. 09, 2022
Liftra Ip Aps, Aalborg SV, DK;
Simon Hedegaard, Aalborg SV, DK;
Liftra IP APS, Aalborg SV, DK;
Abstract
Self-hoisting crane () and method of mounting and operating such crane The self-hoisting crane is adapted to be hoisted from ground to a nacelle () or a tower () of a wind turbine () by operation of a cable winch () arranged at ground () and is adapted to be operated in its mounted position on the nacelle or on the tower by operation of the same cable winch. The cable extends from a hook block (), out through a pedestal () of the crane, from the nacelle or from the tower and to the cable winch at the ground. The self-hoisting crane is provided with a cable crawler () having at least one motor driven traction sheave () adapted to, during operation of the self-hoisting crane, transfer a pulling force to the cable () through friction. The cable crawler is shiftable between an active state () in which the traction sheave may transfer a pulling force to the cable and a passive state in which the traction sheave may transfer no pulling force to the cable.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile