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. 30, 1986
Filed:
Jun. 07, 1984
Applicant:
Inventor:
Ray F Traudt, Englewood, CO (US);
Assignee:
Analytics, Inc., Englewood, CO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F03D / ;
U.S. Cl.
CPC ...
416 41 ; 416 11 ; 416 51 ; 416141 ;
Abstract
A high speed, downwind horizontal axis wind turbine includes three circumferentially spaced lightweight blades having inner support arms and radially outwardly disposed airfoil configured blade segments which are pivotally connected to the support arms, so as to fold straight downwind under high wind conditions or high rotating speeds. A spring biased control mechanism serves to rotate the airfoil segment of each blade about its longitudinal axis as the blade is folded downwind, so that a simultaneous folding and feathering action is obtained to prevent damage to the turbine in high wind conditions or under high rotating speeds.