Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Reexamination Certificate
2007-08-28
2007-08-28
Pickard, Alison K. (Department: 3673)
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
C277S400000, C277S411000, C384S105000, C384S106000, C384S124000
Reexamination Certificate
active
10486647
ABSTRACT:
A foil thrust bearing forms the primary rotating interface for a film riding face seal. This face seal includes a spring system that will allow the entire assembly to translate axially relative to a static attachment. The complete assembly will form a hybrid foil/film riding face seal that shows much promise at being sufficiently flexible to enable operation in a gas turbine engine. The seal includes a flexible top plate having a non-flat surface under its working conditions, and a spring support system to allow the top plate to accommodate axial excursions and out-of-flat distortions.
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Agrawal Giridhari L.
Munson John H.
Patel Kirtikumar H.
Cantor & Colburn LLP
Pickard Alison K.
R & D Dynamics Corporation
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