Rotary kinetic fluid motors or pumps – Bearing – seal – or liner between runner portion and static part – Labyrinth seal
Reexamination Certificate
2011-03-22
2011-03-22
Wiehe, Nathaniel (Department: 3745)
Rotary kinetic fluid motors or pumps
Bearing, seal, or liner between runner portion and static part
Labyrinth seal
C415S230000
Reexamination Certificate
active
07909570
ABSTRACT:
An integrated duct, baffle and knife edge seal arrangement employing the radially inner distal edge of the baffle for sealing the radially inner stator/rotor interface of an inter-stage cavity.
REFERENCES:
patent: 2445661 (1948-07-01), Constant et al.
patent: 2591399 (1952-04-01), Buckland et al.
patent: 2955800 (1960-10-01), Miller et al.
patent: 3078071 (1963-02-01), Henny et al.
patent: 3314648 (1967-04-01), Howald
patent: 3589475 (1971-06-01), Alford
patent: 3759038 (1973-09-01), Scalzo et al.
patent: 4016718 (1977-04-01), Lauck
patent: 4135362 (1979-01-01), Glenn
patent: 4406460 (1983-09-01), Slayton
patent: 4428713 (1984-01-01), Coplin et al.
patent: 4487015 (1984-12-01), Slattery et al.
patent: 4747750 (1988-05-01), Chlus et al.
patent: 5016436 (1991-05-01), Belcher et al.
patent: 5201846 (1993-04-01), Sweeney
patent: 5211541 (1993-05-01), Fledderjohn et al.
patent: 5215440 (1993-06-01), Narayana et al.
patent: 5333443 (1994-08-01), Halila
patent: 5335490 (1994-08-01), Johnson et al.
patent: 5445004 (1995-08-01), Nannini et al.
patent: 5472313 (1995-12-01), Quinones et al.
patent: 5485717 (1996-01-01), Williams
patent: 5545004 (1996-08-01), Ho et al.
patent: 5609467 (1997-03-01), Lenhart et al.
patent: 6012684 (2000-01-01), Umney et al.
patent: 6109022 (2000-08-01), Allen et al.
patent: 6131384 (2000-10-01), Ebel
patent: 6286303 (2001-09-01), Pfligler et al.
patent: 6447252 (2002-09-01), Barker et al.
patent: 6463992 (2002-10-01), Dowhan et al.
patent: 6568187 (2003-05-01), Jorgensen et al.
patent: 6640547 (2003-11-01), Leahy, Jr.
patent: 7229247 (2007-06-01), Durocher et al.
patent: 7229249 (2007-06-01), Durocher et al.
Durocher Eric
Paquet Rene
(Ogilvy Renault)
Pratt & Whitney Canada Corp.
Wiehe Nathaniel
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