Fluid reaction surfaces (i.e. – impellers) – Rotor having flow confining or deflecting web – shroud or... – Axially extending shroud ring or casing
Reexamination Certificate
2006-08-29
2006-08-29
Look, Edward K. (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
Rotor having flow confining or deflecting web, shroud or...
Axially extending shroud ring or casing
C416S192000, C416S195000
Reexamination Certificate
active
07097428
ABSTRACT:
A bucket for use on a steam turbine rotor wheel, the bucket comprising a shank portion and an airfoil portion, the airfoil portion having a radially outer tip with a tip cover adapted to be engaged, in use, by a similar tip cover on an adjacent bucket, wherein a radial step is formed in the tip cover and the airfoil portion along a leading edge of the airfoil portion.
REFERENCES:
patent: 5261785 (1993-11-01), Williams
patent: 5509784 (1996-04-01), Caruso et al.
patent: 6679681 (2004-01-01), Burnett et al.
Barb Kevin Joseph
Ginessin Leonid Yulyevich
Hofer Douglas Carl
Mujezinovic Amir
General Electric Company
Look Edward K.
Nixon & Vanderhye P.C.
White Dwayne J
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