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:
Jan. 07, 2014
Filed:
Mar. 24, 2010
Vincent Girard, Venelles, FR;
Stéphane Mazet, Munich, DE;
Rémi Metivier, Montdauphin, FR;
Alain Eberhard, Velaux, FR;
Vincent Girard, Venelles, FR;
Stéphane Mazet, Munich, DE;
Rémi Metivier, Montdauphin, FR;
Alain Eberhard, Velaux, FR;
Eurocopter, Marignane Cedex, FR;
Abstract
The present invention relates to a rotorcraft blade () provided with at least one spar () and an outer covering (), said blade () including a hollow sleeve () with a wall () that is provided at least with said outer covering () secured to said spar (). The blade includes a rotary damper () provided with an inner tubular strength member () and an outer tubular strength member () that are coaxial and connected together by a ring () of viscoelastic material, said inner tubular strength member () being secured to said covering (), and said outer tubular strength member () being provided with a fork () possessing first and second tines () facing each other so as to be suitable for receiving a first ball joint () close to the pitch-variation axis (AX) of said blade ().