Inner air seal anti-rotation device

Details Inner air seal anti-rotation device Inner air seal anti-rotation device

2007-02-06

2007-02-06

Patel, Vishal (Department: 3673)

Seal for a joint or juncture

Seal between relatively movable parts

Close proximity seal

C277S414000, C415S173100

Reexamination Certificate

active

11210578

ABSTRACT:
An anti-rotation device for preventing rotation of a damper spring and an inner air seal in a stator assembly is provided. The anti-rotation device is formed by a lug positioned within a slot at a center of an inner air seal arc segment. The lug engages a slot in the damper spring and a cutout in a stator segment so as to prevent rotation of the damper spring and the inner air seal in either direction relative to the stator assembly.

REFERENCES:
patent: 4897021 (1990-01-01), Chaplin et al.
patent: 5174714 (1992-12-01), Plemmons et al.
patent: 5797723 (1998-08-01), Frost et al.
patent: 6464232 (2002-10-01), Marchi et al.

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