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. 16, 2019

Filed:

Mar. 12, 2015
Applicant:

Sikorsky Aircraft Corporation, Stratford, CT (US);

Inventors:

Richard Joseph Simkulak, Meriden, CT (US);

Michael J. Shimkus, Milford, CT (US);

Assignee:

SIKORSKY AIRCRAFT CORPORATION, Stratford, CT (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B64C 27/46 (2006.01); B64C 27/473 (2006.01);
U.S. Cl.
CPC ...
B64C 27/463 (2013.01); B64C 27/473 (2013.01); B64C 2027/4733 (2013.01); B64C 2027/4736 (2013.01); Y02E 10/721 (2013.01);
Abstract

A rotor blade is provided. The rotor blade includes a blade portion, a tip cap formed to define a dimple, a fastener and a doubler. The fastener includes a flat-headed shaft and is disposable such that the flat-headed shaft extends through the blade portion and the tip cap at the dimple. The fastener is configured to urge the blade portion toward the tip cap. The doubler includes a dimpled portion disposable between the tip cap and a portion of the flat-headed shaft at the dimple and an exterior portion. The exterior portion is disposable flush with respective exterior surfaces of the blade portion and the flat-headed shaft.


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