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:
Jun. 12, 2012
Filed:
Sep. 09, 2008
Francois Maurice Garcin, Paris, FR;
Pierrick Bernard Jean, Paris, FR;
Jean-pierre Francois Lombard, Pamfou, FR;
Christian Paleczny, Paris, FR;
Francois Maurice Garcin, Paris, FR;
Pierrick Bernard Jean, Paris, FR;
Jean-Pierre Francois Lombard, Pamfou, FR;
Christian Paleczny, Paris, FR;
SNECMA, Paris, FR;
Abstract
A lever for rotating about its pivot a turbomachine variable-pitch stator vane: including a first zone for attachment to a lever drive member, a second zone for attachment to the variable-pitch stator vane, and a third zone of elongate shape between the first zone and the second zone is disclosed. A vibration-damping laminate is applied to at least one surface portion of at least one of the zones of the lever. The laminate includes at least one layer of viscoelastic material in contact with the surface portion and a backing layer of rigid material.