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:
Jan. 07, 2020
Filed:
Jul. 14, 2015
Applicant:
Sikorsky Aircraft Corporation, Stratford, CT (US);
Inventors:
Mark R. Alber, Milford, CT (US);
William J. Eadie, Cheshire, CT (US);
Assignee:
SIKORSKY AIRCRAFT CORP, Stratford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B64C 27/10 (2006.01); F16F 15/02 (2006.01); B64C 27/00 (2006.01); B64C 27/14 (2006.01); B64C 13/04 (2006.01); G05D 1/08 (2006.01); B64C 27/57 (2006.01); B64C 13/50 (2006.01); B64D 35/06 (2006.01); B64C 27/467 (2006.01); B64C 27/82 (2006.01);
U.S. Cl.
CPC ...
F16F 15/02 (2013.01); B64C 13/04 (2013.01); B64C 13/50 (2013.01); B64C 27/001 (2013.01); B64C 27/006 (2013.01); B64C 27/10 (2013.01); B64C 27/14 (2013.01); B64C 27/467 (2013.01); B64C 27/57 (2013.01); B64D 35/06 (2013.01); G05D 1/0816 (2013.01); G05D 1/0858 (2013.01); B64C 2027/004 (2013.01); B64C 2027/8236 (2013.01);
Abstract
An aircraft includes an airframe having an extending tail and a longitudinal axis extending from a nose of the airframe defining a length of the airframe. A counter rotating, coaxial main rotor assembly is located at the airframe and includes an upper rotor assembly and a lower rotor assembly. The upper rotor assembly and the lower rotor assembly rotate about an axis of rotation. The axis of rotation intersects the longitudinal axis forward of a midpoint of the longitudinal axis.