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:
Oct. 07, 2008
Filed:
Jun. 01, 2004
Christopher M. Bevington, Waitsfield, VT (US);
Garrett L. Bywaters, Waitsfield, VT (US);
Clint C. Coleman, Warren, VT (US);
Daniel P. Costin, Chelsea, VT (US);
William L. Danforth, Rochester, VT (US);
Jonathan A. Lynch, St. Johnsbury, VT (US);
Robert H. Rolland, Waitsfield, VT (US);
Christopher M. Bevington, Waitsfield, VT (US);
Garrett L. Bywaters, Waitsfield, VT (US);
Clint C. Coleman, Warren, VT (US);
Daniel P. Costin, Chelsea, VT (US);
William L. Danforth, Rochester, VT (US);
Jonathan A. Lynch, St. Johnsbury, VT (US);
Robert H. Rolland, Waitsfield, VT (US);
Northern Power Systems Inc., Waitsfield, VT (US);
Abstract
A wind turbine () comprising an electrical generator () that includes a rotor assembly (). A wind rotor () that includes a wind rotor hub () is directly coupled to the rotor assembly via a simplified connection. The wind rotor and generator rotor assembly are rotatably mounted on a central spindle () via a bearing assembly (). The wind rotor hub includes an opening () having a diameter larger than the outside diameter of the central spindle adjacent the bearing assembly so as to allow access to the bearing assembly from a cavity () inside the wind rotor hub. The spindle is attached to a turret () supported by a tower (). Each of the spindle, turret and tower has an interior cavity () that permits personnel to traverse therethrough to the cavity of the wind rotor hub. The wind turbine further includes a frictional braking system () for slowing, stopping or keeping stopped the rotation of the wind rotor and rotor assembly.