Fluid reaction surfaces (i.e. – impellers) – With control means responsive to non-cyclic condition... – Impeller rotation speed responsive
Reexamination Certificate
2006-04-26
2008-12-09
Look, Edward (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
With control means responsive to non-cyclic condition...
Impeller rotation speed responsive
C416S051000, C416S053000, C416S140000
Reexamination Certificate
active
07462015
ABSTRACT:
A rotorcraft rotor with hinged blades, includes: a hub; a plurality of blades hinged to flap relative to the hub; bottom abutments of the hub, and bottom abutments of the blades suitable for co-operating with the bottom abutments of the hub; and top abutments of the hub, and top abutments of the blades suitable for co-operating with the top abutments of the hub; the top abutments of the hub being movable between a deployed position in which they extend facing the top abutments of the blades, and a retracted position in which they are offset angularly away from the top abutments of the blades. The rotor also includes elements for locking the top abutments of the hub in the deployed position, and inertial means for releasing the top abutments of the hub and for deactivating the locking means.
REFERENCES:
patent: 4419051 (1983-12-01), DeRosa et al.
patent: 5588801 (1996-12-01), Commelin et al.
patent: 5820341 (1998-10-01), Mondet et al.
patent: 0 600 797 (1994-06-01), None
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patent: 2 725 687 (1996-04-01), None
patent: 2 742 725 (1997-06-01), None
Antomarchi Philippe
Latorre Jean-Marc
Mazet Stephane
Mondet Jean
Eurocopter
Look Edward
White Dwayne J
Young & Thompson
LandOfFree
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