Center located cutter teeth on shrouded turbine blades

Fluid reaction surfaces (i.e. – impellers) – Rotor having flow confining or deflecting web – shroud or... – Axially extending shroud ring or casing

Reexamination Certificate

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Details

C416S191000, C415S173400, C415S173600

Reexamination Certificate

active

06913445

ABSTRACT:
A tip shroud for use with a bucket of a turbine. The tip shroud may include a seal rail with a middle portion and a cutter tooth mounted about the middle portion of the seal rail.

REFERENCES:
patent: 3377050 (1968-04-01), Guy
patent: 5238364 (1993-08-01), Kreitmeier
patent: 6241471 (2001-06-01), Herron
patent: 6506022 (2003-01-01), Bunker
patent: 6805530 (2004-10-01), Urban
patent: 2004/0012151 (2004-01-01), Beeck et al.
patent: WO 02/25065 (2002-03-01), None

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