Fluid reaction surfaces (i.e. – impellers) – Specific working member mount – Interlocking blades
Reexamination Certificate
2008-09-08
2011-11-08
Clark, Sheila V. (Department: 2823)
Fluid reaction surfaces (i.e., impellers)
Specific working member mount
Interlocking blades
C416S189000
Reexamination Certificate
active
08052393
ABSTRACT:
A steam turbine rotating blade for a low pressure section of a steam turbine engine is disclosed. The steam turbine rotating blade includes an airfoil portion. A root section is attached to one end of the airfoil portion. A dovetail section projects from the root section, wherein the dovetail section includes a straight axial entry dovetail. A tip section is attached to the airfoil portion at an end opposite from the root section. A cover is integrally formed as part of the tip section. The cover has a first portion that overhangs a pressure side of the airfoil portion and a second portion that overhangs a suction side of the airfoil portion. The cover is positioned at an angle relative to the tip section, wherein the angle ranges from about 15 degrees to about 35 degrees.
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DeLessio Steven Michael
DeMania Alan Richard
Clark Sheila V.
Cusick Ernest G.
General Electric Company
Hoffman Warnick LLC
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