Patent ID: 7631879

Claim:
A seal assembly for a rotary machine comprising: a plurality of arcuate segments arrayed in an annulus and having substantially axially extending butt joints therebetween, each of the arcuate segments having a radially outermost surface and a downstream face; at least one substantially L-shaped seal arranged to reduce leakage through the butt joints, the at least one seal having a first portion disposed radially outboard of the radially outermost surface and configured to reduce leakage at the radially outermost surface and a second portion configured to reduce leakage in an axial direction through the butt joints at the downstream face; the first portion is substantially parallel to an axis of the seal assembly; the second portion is substantially perpendicular to the axis of the seal assembly; each end of the arcuate segments has a radial slot; and the second portion of the at least one substantially L-shape seal is disposed within the radial slots of the arcuate segments.