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:
Aug. 31, 2021

Filed:

Oct. 01, 2019
Applicant:

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

Inventors:

George Matthew Thompson, Lewisville, TX (US);

Jonathan Knoll, Burleson, TX (US);

Paul Sherrill, Grapevine, TX (US);

Assignee:

Textron Innovations Inc., Providence, RI (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B63H 1/20 (2006.01); B64C 11/06 (2006.01); B64C 11/30 (2006.01); F01D 7/00 (2006.01);
U.S. Cl.
CPC ...
B64C 11/06 (2013.01); B64C 11/30 (2013.01); F01D 7/00 (2013.01);
Abstract

A rotor assembly has a rotor hub having a unitary structure. The rotor assembly further includes a unitary crosshead having a first upper tab and a first lower tab located vertically below the first upper tab. The first upper tab and the first lower tab define a slot therebetween to accept a first pin of the first rotor blade. A second upper tab and a second lower tab located vertically below the second upper tab define a slot therebetween to accept a second pin of the second rotor blade. A first recess is provided between the first lower tab and the second lower tab so that the crosshead comprises no material directly between at least a portion of the first lower tab and the second lower tab along at least one straight path.


Find Patent Forward Citations

Loading…