Rotary kinetic fluid motors or pumps – Bearing – seal – or liner between runner portion and static part – Between blade edge and static part
Reexamination Certificate
2006-10-12
2009-06-30
Nguyen, Ninh H (Department: 3745)
Rotary kinetic fluid motors or pumps
Bearing, seal, or liner between runner portion and static part
Between blade edge and static part
C415S116000, C415S139000, C415S213100
Reexamination Certificate
active
07553128
ABSTRACT:
A blade outer air seal (BOAS) has a body having an inner (ID) face and an outer (OD) face, first and second circumferential ends, and fore and aft longitudinal ends. The BOAS has one or more mounting hooks extending from the body. The OD face comprises a plurality of transversely elongate protuberances. The protuberances include rearwardly divergent first protuberances and forwardly divergent second protuberances.
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Abdel-Messeh William
Christophel Jesse R.
Bachman & LaPointe P.C.
Nguyen Ninh H
United Technologies Corporation
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