Rotary kinetic fluid motors or pumps – With sound or vibratory wave absorbing or preventing means...
Reexamination Certificate
2006-08-29
2009-02-24
Kershteyn, Igor (Department: 3745)
Rotary kinetic fluid motors or pumps
With sound or vibratory wave absorbing or preventing means...
C415S189000, C415S190000, C415S191000
Reexamination Certificate
active
07494316
ABSTRACT:
A vane including a root, a tip and an airfoil portion extending between the root and the tip, the vane also including a button portion interconnecting the airfoil portion and the root. The button portion protrudes beyond a profile of the airfoil a distance less than the root. The button portion includes leading and trailing ends free of sharp edges. The leading and trailing ends respectively protrude beyond leading and trailing edges of the airfoil portion.
REFERENCES:
patent: 3501247 (1970-03-01), Toumere
patent: 3849023 (1974-11-01), Klompas
patent: 3985465 (1976-10-01), Sheldon et al.
patent: 4180371 (1979-12-01), Ivanko
patent: 4305696 (1981-12-01), Pask
patent: 4378961 (1983-04-01), Trousdell
patent: 4655682 (1987-04-01), Kunz et al.
patent: 4820120 (1989-04-01), Feuvrier et al.
patent: 4820124 (1989-04-01), Fried
patent: 4907944 (1990-03-01), Kroger et al.
patent: 4940386 (1990-07-01), Feuvrier et al.
patent: 5074752 (1991-12-01), Murphy et al.
patent: 5269649 (1993-12-01), Kiefer et al.
patent: 5494404 (1996-02-01), Furseth et al.
patent: 5547342 (1996-08-01), Furseth et al.
patent: 6409472 (2002-06-01), McMahon et al.
patent: 6494677 (2002-12-01), Grady
patent: 6543995 (2003-04-01), Honda et al.
patent: 6854960 (2005-02-01), Van Dine et al.
patent: 2005/0022501 (2005-02-01), Eleftheriou et al.
patent: 2005/0109013 (2005-05-01), Eleftheriou et al.
patent: 840224 (1970-04-01), None
Barnett Barry
Denis David
Kershteyn Igor
Ogilvy Renault LLP
Pratt & Whitney Canada Corp.
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