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:
Mar. 02, 1993
Filed:
Aug. 13, 1990
Applicant:
Inventors:
Guy C Murphy, Fairfield, OH (US);
Bruce J Gordon, N. Reading, MA (US);
Leroy H Smith, Jr, Cincinnati, OH (US);
Jan C Schilling, Middletown, OH (US);
Alan R Stuart, Cincinnati, OH (US);
Assignee:
General Electric Company, , US;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B64C / ;
U.S. Cl.
CPC ...
416129 ; 4162 / ; 416237 ; 416238 ; 415119 ;
Abstract
The invention concerns reduction of tip vortices in aircraft propellers, wherein a fence having anhedral or dihedral is attached to the blades of the propeller. Another form of the invention is applicable to counterrotating propeller systems, wherein a fence is attached to the blades of the forward propeller of the system, and no fences are attached to the aft propeller.