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:
Feb. 08, 1994
Filed:
Oct. 14, 1992
Applicant:
Inventor:
Bruno Guimbal, Les Milles, FR;
Assignee:
Aerospatiale Nationale Insustrielle, Paris, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B64C / ;
U.S. Cl.
CPC ...
4161 / ; 416131 ; 416230 ;
Abstract
A multi-blade rotor (1), especially for a helicopter rear anti-couple propeller, includes a hub body (3) to which are connected twistable straps (11 to 17) each formed by two bundles (20) of fibers with a flattened cross section arranged radially around the hub (3), each of the bundles (20) forming at least two halves of different blades (11 to 17) and being twisted and curved in the region of its passage near the center of the hub body (2) in such a way that it forms a tangent to the circumference of the center of the hub body (3) along the greater dimension of its cross section.