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:
Jun. 10, 2025

Filed:

Oct. 16, 2023
Applicant:

Airbus Helicopters, Marignane, FR;

Inventors:

Guillaume Legras, Velaux, FR;

Philippe Pinto, Saint-Chamas, FR;

Christophe Albertini, Septemes les Vallons, FR;

Assignee:

AIRBUS HELICOPTERS, Marignane, FR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B64D 33/04 (2006.01);
U.S. Cl.
CPC ...
B64D 33/04 (2013.01);
Abstract

An exhaust duct configured to be arranged around an exhaust nozzle of an engine, the exhaust duct having a plurality of sections. The sections are circular between an inlet section and an outlet section, with the exception of the sections of a deformed segment, each section of the deformed segment extending from a bottom sector to a top sector, the bottom sector having a non-circular shape so that at least a volume of liquid that is not able to reach, by force of gravity, the inlet section and the outlet section, is less than a volume threshold when the pitch and roll angles respectively lie within predetermined pitch and roll angle ranges.


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