Optics: measuring and testing – Fiducial instruments
Reexamination Certificate
2007-06-21
2010-06-08
Nguyen, Sang (Department: 2886)
Optics: measuring and testing
Fiducial instruments
C356S251000, C356S252000, C356S141200, C356S148000, C340S973000, C340S980000
Reexamination Certificate
active
07733480
ABSTRACT:
A visual aid is used by a pilot in an aircraft to position himself in the cockpit by an axial movement, called movement along the X axis, in an aircraft reference coordinate system, and by a vertical movement, called movement along the Z axis, in the aircraft reference system. The visual aid comprises two geometric shapes (3, 4), separated in space and designed to be visually aligned by the pilot; these shapes have the characteristic that each has a visual reference (31, 41) on its surface, approximately in the same horizontal plane perpendicular to the vertical XZ plane.
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Duchams Georges
Le Texier Maxime
Airbus France
Nguyen Sang
Perman & Green LLP
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