Fluid reaction surfaces (i.e. – impellers) – With heating – cooling or thermal insulation means – Changing state mass within or fluid flow through working...
Reexamination Certificate
2005-08-16
2005-08-16
Nguyen, Ninh H. (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
With heating, cooling or thermal insulation means
Changing state mass within or fluid flow through working...
C416S09700R, C416S500000
Reexamination Certificate
active
06929451
ABSTRACT:
A rotor blade for a rotor assembly is provided that includes a root, an airfoil, and a damper. The airfoil includes a base, a tip, a pressure side wall, a suction side wall, and a cavity disposed therebetween. The cavity extends substantially between the base and the tip, and includes a first cavity portion, a second cavity portion, and a channel disposed between the first cavity portion and the second cavity portion. A plurality of first pedestals are disposed within the first cavity portion adjacent the channel, and a plurality of second pedestals are disposed within the second cavity portion adjacent the channel. The damper is selectively received within the channel.
REFERENCES:
patent: 2848192 (1958-08-01), Hayes
patent: 5558497 (1996-09-01), Kraft et al.
patent: 5820343 (1998-10-01), Kraft et al.
patent: 6402470 (2002-06-01), Kvasnak et al.
Gregg Shawn J.
Mongillo, Jr. Dominic J.
McCormick Paulding & Huber LLP
Nguyen Ninh H.
United Technologies Corporation
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