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:
Sep. 04, 2007
Filed:
Oct. 18, 2005
Applicant:
Thomas A. Zientek, Drexel Hill, PA (US);
Inventor:
Thomas A. Zientek, Drexel Hill, PA (US);
Assignee:
The Boeing Company, Chicago, IL (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B64C 27/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A rotor system () for a helicopter () includes a rotating shaft (). A gimbaled hub assembly () is coupled to the rotating shaft (). Rotating blades () and non-rotating blades () are coupled to the gimbaled hub assembly (). The non-rotating blades () provide lift for the helicopter () in forward flight unloading the rotating blades. The rotating and non-rotating blades () provide equal and opposite rolling moments for lift offset operation.