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. 21, 2010
Filed:
Mar. 17, 2006
Frederick J. Miner, Barkhamsted, CT (US);
Frank P. D'anna, Seymour, CT (US);
David N. Schmaling, Southbury, CT (US);
Michael R. Robbins, Guilford, CT (US);
Frederick J. Miner, Barkhamsted, CT (US);
Frank P. D'Anna, Seymour, CT (US);
David N. Schmaling, Southbury, CT (US);
Michael R. Robbins, Guilford, CT (US);
Sikorsky Aircraft Corporation, Stratford, CT (US);
Abstract
A rotor assembly having a rotor hub, a plurality of yokes, and a plurality of swing arms is provided. The yoke depending from the rotor hub. Each swing arm is movably positioned on the rotor hub for rotation between an unlocked position and a locked position. The yokes are freely movable about a pitch axis and a lead/lag axis when the swing arms are in the unlocked position and the yokes are locked in a predetermined pitch position and a predetermined lead/lag position when the swing arms are in the locked position.