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:
Jan. 02, 1990
Filed:
Jul. 29, 1987
Applicant:
Inventor:
Larry L Smith, Canfield, OH (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B64C / ;
U.S. Cl.
CPC ...
244219 ; 244201 ;
Abstract
An airfoil having improved aerodynamic characteristics has a leading edge and a trailing edge longitudinally spaced therefrom. A continuous lower surface of the air foil forms a lower camber extending from the leading edge to the trailing edge. The upper surface of the air foil has a first fixed upper surface extending rearwardly from the leading edge and terminating in an offset and a second upper surface extends rearwardly therefrom and is movable from a first position defining a first upper camber portion of the airfoil to a second position defining a second upper camber portion thereof.