Aeronautics and astronautics – Aircraft control – Specific control connection or actuator
Reexamination Certificate
2006-11-16
2010-06-01
Mansen, Michael R (Department: 3644)
Aeronautics and astronautics
Aircraft control
Specific control connection or actuator
C244S087000, C310S333000
Reexamination Certificate
active
07726603
ABSTRACT:
The present invention relates to a sandwich-structure flat active actuator that is symmetrical relative to the mid-plane comprising at least one piezoelectric flat layer having an active direction superpose and fixedly attached to at least one passive flat layer of fabric with rigid warp and weft oriented in two directions forming a mesh; the two directions of each layer of fabric are the same. The active direction of each piezoelectric layer is oriented along one and the same diagonal of the mesh of the layers of fabric. The invention is also aimed at a device consisting of two actuators mounted head-to-tail. The invention applies to the active torsion of structures such as, for example, a helicopter blade.
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Preliminary Search Report dated Jul. 14, 2006 with English translation.
C. E. S. Cesnik, et al.; “Modeling, Design, And Testing of the NASA/Army/MIT Active Twist Rotor Prototype Blade,” XP009069472, Proceedings 55th Annual Forum of the American Helicopter Society, Montreal, Canada, May 25-27,1999, pp. 533-544.
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Buchaniek Léon
Joly Didier
Mercier Des Rochettes Hugues
Dickinson Wright PLLC
Mansen Michael R
O'Hara Brian M
ONERA (Office National d'Etudes et de Recherches Aerospatiales)
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