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:
Dec. 01, 2020

Filed:

Feb. 07, 2018
Applicant:

Inventus Holdings, Llc, Juno Beach, FL (US);

Inventors:

Martin E. Lohan, Palm City, FL (US);

Per Eske Fenger, Terndrup, DK;

Charles Asheim, Palm Beach Gardens, FL (US);

Miguel A. Gonzalez, Jupiter, FL (US);

Daniel M. Brake, Hobe Sound, FL (US);

Assignee:

Inventus Holdings, LLC, Juno Beach, FL (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F03D 80/50 (2016.01); F03D 80/70 (2016.01); F16C 35/06 (2006.01); F16C 33/60 (2006.01);
U.S. Cl.
CPC ...
F03D 80/50 (2016.05); F03D 80/70 (2016.05); F16C 33/60 (2013.01); F16C 35/06 (2013.01); F16C 35/062 (2013.01); F05B 2230/80 (2013.01); F05B 2240/50 (2013.01); F16C 2360/31 (2013.01); Y02B 10/30 (2013.01); Y02E 10/72 (2013.01); Y02P 70/50 (2015.11); Y10T 29/49318 (2015.01);
Abstract

A method for performing uptower maintenance of a wind turbine in order to replace the main bearing on the turbine shaft is disclosed. Embodiments of this method to perform maintenance may include installing a rotor lock to resist rotation of the main shaft during maintenance, providing a lifting device in order to elevate the main shaft, removing the main bearing from its main bearing housing, and installing a replacement split main bearing. A crane may also be installed uptower to assist in the maintenance.


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