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:
Nov. 24, 2009
Filed:
May. 12, 2006
David A. Darrow, Jr., Stratford, CT (US);
Fabio P. Bertolotti, South Windsor, CT (US);
Thomas L. Sbabo, Hamden, CT (US);
Frank P. D'anna, Seymour, CT (US);
David A. Darrow, Jr., Stratford, CT (US);
Fabio P. Bertolotti, South Windsor, CT (US);
Thomas L. Sbabo, Hamden, CT (US);
Frank P. D'Anna, Seymour, CT (US);
Sikorsky Aircraft Corporation, Stratford, CT (US);
Abstract
A rotor hub fairing system includes an upper hub fairing, a lower hub fairing and a shaft fairing therebetween. The rotor hub fairing system is attached to the counter-rotating, coaxial rotor system through a bearing arrangement such that the shaft fairing may be positioned at an azimuthal position about the main rotor axis of rotation relative the airframe by a de-rotation system. The de-rotation system controls the position of the shaft fairing about the axis of rotation such that the shaft fairing is prevented from rotating freely in unison with either shaft as may otherwise result during some flight regimes.