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. 04, 2001
Filed:
Dec. 21, 1999
Applicant:
Inventors:
David Ferullo, Le Rove, FR;
Claude Bietenhader, Lambesc, FR;
Assignee:
Eurocopter, , FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B64C 2/700 ; B64D 2/700 ;
U.S. Cl.
CPC ...
B64C 2/700 ; B64D 2/700 ;
Abstract
The anti-vibration suspension device comprises at least three oblique bars, each articulated on the gearbox and on the structure by means of a rigid lever supporting an oscillating weight and in turn pivotally mounted by means of at least one pivot on this structure, and each lever is also joined to the gearbox by means of at least one torsion spring biassed about a torsion axis substantially perpendicular to the radial plane defined by the axes of the rotor and the corresponding oblique bar.