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.
Patent No.:
Date of Patent:
Dec. 03, 2019
Filed:
Dec. 17, 2015
Applicant:
Safran Aircraft Engines, Paris, FR;
Inventors:
Laurence Francine Vion, Moissy-Cramayel, FR;
Mathieu Simon Paul Gruber, Moissy-Cramayel, FR;
Assignee:
Safran Aircraft Engines, Paris, FR;
Primary Examiner:
Int. Cl.
CPC ...
B64C 11/48 (2006.01); B64C 11/18 (2006.01); F01D 7/00 (2006.01); B64C 11/30 (2006.01);
U.S. Cl.
CPC ...
B64C 11/48 (2013.01); B64C 11/18 (2013.01); F01D 7/00 (2013.01); B64C 11/306 (2013.01);
Abstract
A turbomachine including at least two unducted propellers, one of which is an upstream propeller and one a downstream propeller, the upstream propeller including a plurality of blades, at least one first blade of which has a different length from that of a second blade.