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. 27, 2024

Filed:

May. 26, 2020
Applicant:

Leonardo S.p.a., Rome, IT;

Inventors:

Michele Delli Paoli, Samarate, IT;

Fabio Nannoni, Samarate, IT;

Roberto Vanni, Samarate, IT;

Assignee:

LEONARDO S.P.A., Rome, IT;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B64C 27/59 (2006.01); B64C 27/82 (2006.01);
U.S. Cl.
CPC ...
B64C 27/59 (2013.01); B64C 27/82 (2013.01); B64C 2027/8218 (2013.01); B64C 2027/8281 (2013.01);
Abstract

An anti-torque rotor is described comprising: a mast rotatable about a first axis; a plurality of blades hinged on the mast and rotatable about respective second axes to vary the respective angles of attack; a control element sliding along the first axis with respect to the mast, rotatable with the mast and connected to the blades to cause the rotation about the second axes; a control mechanism, axially sliding and angularly fixed with respect to the mast; and a connection element interposed between the control mechanism and the control element, sliding integrally with the control mechanism along the mast; the control mechanism comprises a first and a second rod; the rotor comprises a coupling, which is configured to enable/prevent rotation of the second rod with respect to the first rod when the torque exerted by the first connection element on the second rod about the first axis is greater/less than a threshold value in the event of failure of the connection element.


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