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:
May. 19, 2026
Filed:
Jun. 22, 2023
Safran Aircraft Engines, Paris, FR;
Safran Ceramics, Le Haillan, FR;
Simon Jean-Marie Bernard Cousseau, Moissy-Cramayel, FR;
Romain Claude Gabriel Bardon, Moissy-Cramayel, FR;
Fabrice Joël Luc Chevillot, Moissy-Cramayel, FR;
Fabrice Marcel Noël Garin, Moissy-Cramayel, FR;
Lucien Henri Jacques Quennehen, Moissy-Cramayel, FR;
SAFRAN AIRCRAFT ENGINES, Paris, FR;
SAFRAN CERAMICS, Le Haillan, FR;
Abstract
A bladed assembly for a turbomachine includes: a plurality of blades distributed about an axis and each including an airfoil and a platform formed at a free end of the blade. The platform of each blade includes a friction member and an opening that is oblong in a circumferential direction with respect to the axis. The friction member is engaged through the opening formed in the platform of a circumferentially adjacent blade within the bladed assembly with a clearance allowing the friction member to move at least in the circumferential direction within the opening. Mutual separation of the platforms in the circumferential direction during operation due to vibrations of the blades causes the friction member to rub against an edge of the opening and thereby dissipate energy.