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.

Date of Patent:
Oct. 20, 2015

Filed:

May. 23, 2012
Applicant:

Jean-francois Hirsch, Aix en Provence, FR;

Inventor:

Jean-Francois Hirsch, Aix en Provence, FR;

Assignee:

Airbus Helicopters, Marignane Cedex, FR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B64C 27/54 (2006.01); B64C 27/00 (2006.01); B64C 27/72 (2006.01);
U.S. Cl.
CPC ...
B64C 27/54 (2013.01); B64C 27/001 (2013.01); B64C 2027/7266 (2013.01); Y02T 50/34 (2013.01);
Abstract

A twist mechanism for twisting a rotary-wing blade (). A twist member () is movable by an actuator () of the centrifugal force type, which twist member has at least one flyweight () for driving a rotary member () about a pivot axis (A). The flyweight () is radially movable on the rotary member () by movement means. The centrifugal force FC to which the flyweight () is subjected as a result of the blade () being caused to rotate induces drive torque CM for causing the rotary member () to pivot, thereby causing the twist member () to be moved. The twist member () is in engagement with the blade () at its free end and is connected to the rotary member () via remote mechanical transmission means ().


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