Seal for a joint or juncture – Seal between relatively movable parts – Close proximity seal
Reexamination Certificate
2006-04-11
2006-04-11
Pickard, Alison K. (Department: 3673)
Seal for a joint or juncture
Seal between relatively movable parts
Close proximity seal
C277S303000, C415S174400
Reexamination Certificate
active
07025356
ABSTRACT:
An air-oil seal having a runner surface comprising at least one component selected from the group consisting of: polyetheretherketone; polyetherimide; polyphenylene sulfide; and polyetherketoneketone.
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Cheung Kin-Leung
Hung William Ting-Chel
Ogilvy Renault LLP
Pickard Alison K.
Pratt & Whitney Canada Corp.
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