Rotor blade adjustable weight retention system

Details Rotor blade adjustable weight retention system Rotor blade adjustable weight retention system

2007-11-08

2011-10-04

Kershteyn, Igor (Department: 3745)

Fluid reaction surfaces (i.e., impellers)

Articulated, resiliently mounted or self-shifting impeller...

Nonmetallic resilient mounting

C416S139000, C416S144000, C416S145000, C416S500000

Reexamination Certificate

active

08029240

ABSTRACT:
In one embodiment, a rotor blade balancing apparatus may include a tube member defining an inner cavity, a plurality of weights, and a biasing member. The tube member may be for the insertion into a cavity of a rotor blade. Each of the weights may be adapted to be slide-ably inserted into the inner cavity of the tube member within a cavity of a rotor blade, and slide-ably removed from the inner cavity of the tube member within a cavity of a rotor blade in order to balance a rotor blade. The biasing member may be for biasing weights, which have been slide-ably inserted into the inner cavity of the tube member within a cavity of a rotor blade, towards an end of the tube member.

REFERENCES:
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patent: 3514631 (1985-04-01), None
patent: 3607374 (1986-03-01), None
patent: WO 94/13530 (1994-06-01), None
International Search Report dated Mar. 4, 2009 for Application No. GB0820488.5, 6 pages.

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