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:
Nov. 03, 2020

Filed:

Jul. 31, 2017
Applicant:

Bell Helicopter Textron Inc., Fort Worth, TX (US);

Inventors:

Paul Sherrill, Grapevine, TX (US);

Tim Ledbetter, Fort Worth, TX (US);

Kelli Yates, Cary, IN (US);

Robert Self, Fort Worth, TX (US);

Nathan Green, Fort Worth, TX (US);

Russell Cole, Euless, TX (US);

Assignee:

BELL HELICOPTER TEXTRON INC., Fort Worth, TX (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B64C 27/04 (2006.01); B64C 27/00 (2006.01); B64C 27/46 (2006.01); B64C 27/473 (2006.01); B64C 27/82 (2006.01);
U.S. Cl.
CPC ...
B64C 27/008 (2013.01); B64C 27/463 (2013.01); B64C 27/473 (2013.01); B64C 27/04 (2013.01); B64C 27/82 (2013.01);
Abstract

The present invention includes a span-balance pocket in a surface of a rotor blade, the span-balance pocket including an inboard surface and an outboard surface; and one or more weights disposed in the span-balance pocket to span-balance the rotor blade; and at least one of one or more retention devices to retain the one or more weights against the outboard surface of the span-balance pocket or the span-balance pocket is machined or molded into a tip block of the rotor blade.


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