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This is a record of a document published elsewhere, first published by the United States Patent and Trademark Office, as US-2026091958-A1, on 2 April 2026. OpenTechnical did not first disclose it. The identifier, hashes and timestamps below record what this library served and when, not when the material became public. View the original.

OT-2026-000001213

Rotor turning lifting yoke

Published
Permanent URL
Classification
Lifting, Positioning & Manipulation › Hoists and Cranes
Inventors
CHRISTIANSEN ALEXANDER BECSE, FENGER PER ESKE, LAMBERTSEN RUBEN TJELL
Assignee
LIFTRA IP APS
Original source
US-2026091958-A1, the United States Patent and Trademark Office, 2 April 2026
Document SHA-256
5916cb6338f2afe87c6c14af1fd30f84c9c6f7dd4e087eb41dced64763f04134

Abstract

Rotor lifting yoke for lifting a three bladed rotor, said rotor lifting yoke comprising: a lifting structure, a first and second flexible elongated element arranged to be connected both to the lifting structure and to a root portion of a first blade of the rotor, and a third and fourth flexible elongated element arranged to be connected both to the lifting structure and to a root portion of a second blade of the rotor. The rotor lifting yoke further comprises one or more length adjusting mechanisms which are arranged to adjust the effective length of the first and third and/or the second and fourth flexible elongated elements. The flexible elongated members are further arranged such that when said flexible elongated members are attached to the root portions of their respective blades, at least one point on the first and third and/or at least one point on the second and fourth flexible elongated elements is attached to their respective blades via a non-slip attachment. In this way, a rotor lifting yoke is provided which can rotate the rotor from a vertical to a horizontal position and back again in an easy and flexible manner just by adjusting the lengths of the flexible elongated members.

Publication information

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Citation

OpenTechnical Publication OT-2026-000001213, “Rotor turning lifting yoke,” published September 15, 2026 at 19:04:10 UTC, https://opentechnical.org/p/OT-2026-000001213.

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