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:
Aug. 18, 2020
Filed:
Oct. 02, 2017
Vestas Wind Systems A/s, Aarhus N., DK;
Kristoffer Isbak Thomsen, Århus N, DK;
Thomas Møller Christiansen, Hjortshøj, DK;
Vestas Wind Systems A/S, Aarhus N., DK;
Abstract
Rotor restraining and rotating apparatus and methods for a wind turbine () are described. An apparatus () has a rotatable control element () associated with a rotor () of the wind turbine, the control element being at least part-circular in form, the control element comprising a plurality of engagement formations () disposed on a periphery thereof. The apparatus also has a control member (), comprising a plurality of engagement formations (). The control member is movable () in a first degree of freedom between: (a) a non-restraining position; and (b) a restraining position in which the control member engagement formations are able to engage the control element engagement formations to restrain rotation of the control element. The control member is also movable () in a second degree of freedom. In the restraining position, on movement of the control member in the second degree of freedom, the control member engagement formations are operable to move the control element engagement formations thereby to cause rotation of the control element.