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:
Oct. 13, 1998
Filed:
Dec. 03, 1996
Applicant:
Inventors:
Jean Joseph Mondet, Pelissanne, FR;
Sylvie Jacqueline Garcin, Carry le Rouet, FR;
Assignee:
Eurocopter France, Marignane Cedex, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B24C / ;
U.S. Cl.
CPC ...
416 46 ; 416 51 ; 416 53 ; 416140 ;
Abstract
The device includes anti-cone stops projecting outward from at least two coaxial rings that can rotate about the rotor axis on the top face of the hub. Flyweights are each mechanically joined to one of the rings by a mechanism for driving the latter in rotation from the 'ground' position, in which each anti-cone stop is facing an upper bearing shoe of the corresponding blade, to the 'flight' position, in which the anti-cone stops are retracted against elastic mechanisms returning them to the 'ground' position.