Fluid reaction surfaces (i.e. – impellers) – Rotor having flow confining or deflecting web – shroud or... – Axially extending shroud ring or casing
Reexamination Certificate
2008-11-13
2011-11-22
Lebentritt, Michael (Department: 2829)
Fluid reaction surfaces (i.e., impellers)
Rotor having flow confining or deflecting web, shroud or...
Axially extending shroud ring or casing
C416S20400A, C416S217000, C416S230000
Reexamination Certificate
active
08061994
ABSTRACT:
A rotorcraft rotor blade (1) has a blade root (1′) and a free end opposite from the blade root (1′), the blade (1) being provided at least with a spar (2) laid flat on a suction-side face (3) and a pressure side-face (4) of the blade (1), the main spar (2) being secured to an attachment fitting (5) at the blade root (1′). The attachment fitting (5) then includes first and second horizontal fastener bushings (10, 20), the first and second fastener bushings (10, 20) being both perpendicular to the span of the blade (1) and substantially perpendicular to an elevation direction (Z) that is substantially parallel to gravity (W), the elevation direction (Z) being perpendicular to the span.
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Search Report dated Jul. 1, 2008 in French application.
Metivier Rémi
Parisy Jean-Marie
Brooks & Kushman P.C.
Eurocopter
Lebentritt Michael
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