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. 20, 1981
Filed:
Jun. 21, 1979
Applicant:
Inventor:
Walter S Eggert, Jr, Huntington Valley, PA (US);
Assignee:
The Budd Company, Troy, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F03D / ; B64C / ;
U.S. Cl.
CPC ...
416226 ; 416230 ;
Abstract
A tapered blade for use in a windmill comprises a main spar or beam assembly having top and bottom flat sheets of metal. Tapered angle strips are welded along the edges of the sheets. With the sheets and strips twisted to the proper angles, they are joined together by shear web channels welded along the edges of the strips. Leading and trailing edge assemblies, comprising primarily foam material, are bonded to the spar. A fitting is provided to permit the blade to be attached to the mechanism to be driven on the windmill.