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. 11, 1990
Filed:
Jul. 20, 1988
Applicant:
Inventors:
J Ford Johnston, Sunland, CA (US);
William A Farone, Irvine, CA (US);
Amir Mikhail, Northridge, CA (US);
Assignee:
DWR Wind Technologies Inc., San Francisco, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D / ;
U.S. Cl.
CPC ...
416230 ; 416226 ; 416239 ;
Abstract
A wind turbine rotor blade including NASA LS (1) - 04xx airfoil sections having a twist not greater than 8.degree. and a construction for such a blade which includes no parting line along the leading edge. The bond between a rectangular spar and the outer skin is reinforced by channels of 'C' shaped cross section affixed to the skin and the spar. A method for manufacturing a rotor blade of this construction.