Fluid reaction surfaces (i.e. – impellers) – Specific working member mount – Blade received in well or slot
Reexamination Certificate
2007-04-06
2010-12-28
Look, Edward (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
Specific working member mount
Blade received in well or slot
Reexamination Certificate
active
07857593
ABSTRACT:
A retention device for axially retaining a rotor disk flange, the device including a split annular retaining ring. The ring has an external face bearing against an internal face of the rim, thereby resulting in a first axial force, an internal face bearing against an external face of the root, thereby resulting in a second axial force, the axial forces being radially offset relative to each other, and an outer face bearing against an inner face of the base of the flange, thereby resulting in a radial force. The outer face of the ring presents an annular setback in such a manner that the radial force is situated in a plane that is offset axially relative to a radial plane passing through the center of gravity of the ring so as to obtain mechanical equilibrium between the forces acting on the ring.
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patent: 4304523 (1981-12-01), Corsmeier et al.
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patent: 7217100 (2007-05-01), Benderradji et al.
patent: 0 921 272 (2003-09-01), None
patent: 1 498 579 (2005-01-01), None
Garin Fabrice
Judet Maurice Guy
Langevin Thomas
Ellis Ryan H
Look Edward
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
SNECMA
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