“L” butt gap seal between segments in seal...

Details “L” butt gap seal between segments in seal... “L” butt gap seal between segments in seal...

2006-06-21

2009-12-15

Patel, Vishal (Department: 3676)

Seal for a joint or juncture

Seal between relatively movable parts

Close proximity seal

C277S543000, C277S546000, C277S632000

Reexamination Certificate

active

07631879

ABSTRACT:
Disclosed herein is a seal assembly for a rotary machine having a plurality of arcuate segments and at least one seal. The plurality of arcuate segments are arrayed in an annulus and have butt joints, each of the arcuate segments has a radially outermost surface and a downstream face. The at least one seal is arranged to minimize leakage through the butt joints. The at least one seal has a first portion configured to minimize leakage at the radially outermost surface and a second portion configured to minimize leakage at the downstream face.

REFERENCES:
patent: 3235275 (1966-02-01), Hart
patent: 3552753 (1971-01-01), Mierley
patent: 3966356 (1976-06-01), Irwin
patent: 4599841 (1986-07-01), Haid
patent: 4979755 (1990-12-01), Lebreton
patent: 6431550 (2002-08-01), Tong
patent: 6682300 (2004-01-01), Bolms
patent: 6874787 (2005-04-01), Kono

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