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:
Oct. 25, 2016

Filed:

May. 01, 2015
Applicant:

Sikorsky Aircraft Corporation, Stratford, CT (US);

Inventors:

Eric S. Parsons, New Haven, CT (US);

Eric Lucien Nussenblatt, Stamford, CT (US);

Justin Thomas, New Haven, CT (US);

Ryan Thomas Casey, San Diego, CA (US);

David H. Hunter, Cheshire, CT (US);

Assignee:

SIKORSKY AIRCRAFT CORPORATION, Stratford, CT (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B64C 27/00 (2006.01); B64C 27/473 (2006.01); B64C 27/04 (2006.01); B64C 27/33 (2006.01); B64C 27/48 (2006.01);
U.S. Cl.
CPC ...
B64C 27/473 (2013.01); B64C 27/04 (2013.01); B64C 27/33 (2013.01); B64C 27/48 (2013.01);
Abstract

A rotor blade assembly includes a flex-beam member and a torque tube surrounding the flex-beam member and extending partially along a rotor blade assembly length. A rotor blade surrounds the flex beam member and extends from the torque tube to a blade tip. A connecting assembly secures the rotor blade and the torque tube at the flex-beam member. The connecting assembly includes a first connecting member extending at least partially into the rotor blade assembly through the rotor blade from a first rotor blade side and a second connecting member located at a second rotor blade side. A clamping load between the first connecting member and the second connecting member secures the rotor blade and torque tube to the flex-beam member.


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