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:
Sep. 19, 2006
Filed:
Jun. 25, 2003
Anne Thenaisie, Guesde, FR;
Alain Bassot, Bois le Roi, FR;
Eric Inghels, Melun, FR;
Hervé Buisson, Savigny le Temple, FR;
Christophe Follonnier, Ponthierry, FR;
Patrick Reghezza, Vaux le Penil, FR;
Bruce Pontoizeau, Paris, FR;
Anne Thenaisie, Guesde, FR;
Alain Bassot, Bois le Roi, FR;
Eric Inghels, Melun, FR;
Hervé Buisson, Savigny le Temple, FR;
Christophe Follonnier, Ponthierry, FR;
Patrick Reghezza, Vaux le Penil, FR;
Bruce Pontoizeau, Paris, FR;
Snecma Moteurs, Paris, FR;
Abstract
A restraining device for a fan blade root, in which a packing member is constituted by a metal structure having hollowed out portions filed in by overmolding with a semi-rigid elastomer material, in particular on a lateral edge concave side between an upstream end zone and a downstream end zone, which end zones are entirely of metal structure, on a lateral edge convex side between the end zones and a central zone that is essentially of metal structure, and on two top portions of the packing member that extend between the elastomer lateral edges on either side of the metal central zone. The metal structure also includes a bottom recess extending over its entire surface between the upstream end zone and the downstream end zone. Hence, the metal structure behaves like a spring blade when the blade turns following a violent impact.