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.

Date of Patent:
Jul. 27, 2010

Filed:

Dec. 14, 2006
Applicants:

Fanping Sun, Glastonbury, CT (US);

Zaffir A. Chaudhry, South Glastonbury, CT (US);

Jimmy Lih-min Yeh, West Hartford, CT (US);

Michael G. O'callaghan, Manchester, CT (US);

Ulf J. Jonsson, South Windsor, CT (US);

Brian E. Wake, South Glastonbury, CT (US);

Robert H. Dold, Monson, MA (US);

Inventors:

Fanping Sun, Glastonbury, CT (US);

Zaffir A. Chaudhry, South Glastonbury, CT (US);

Jimmy Lih-Min Yeh, West Hartford, CT (US);

Michael G. O'Callaghan, Manchester, CT (US);

Ulf J. Jonsson, South Windsor, CT (US);

Brian E. Wake, South Glastonbury, CT (US);

Robert H. Dold, Monson, MA (US);

Assignee:

Sikorsky Aircraft Corporation, Stratford, CT (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B64C 27/615 (2006.01);
U.S. Cl.
CPC ...
Abstract

A helicopter rotor blade that has a blade body and a control flap secured to the blade body. The rotor blade has a first primary mover capable of generating a first linear motion that is sufficient to generate a high amplitude, low frequency motion of the control flap; and a second primary mover capable of generating a second linear motion that is sufficient to generate a small amplitude, high frequency motion of the control flap. Further, the rotor blade has a coupling transmission for combining the first linear motion with the second linear motion that generates a cumulative linear motion; and a second transmission device that causes the cumulative linear motion to rotate the control flap.


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