Rotary kinetic fluid motors or pumps – Working fluid passage or distributing means associated with... – Vane or deflector
Reexamination Certificate
2006-04-03
2010-06-29
Verdier, Christopher (Department: 3745)
Rotary kinetic fluid motors or pumps
Working fluid passage or distributing means associated with...
Vane or deflector
C415S115000, C415S116000, C415S136000, C403S336000, C403S337000, C403S338000, C285S328000, C285S376000, C285S401000, C285S913000
Reexamination Certificate
active
07744344
ABSTRACT:
Vanes are generally hollow with a passage through which service pipes extend. These service pipes must be connected such that they can allow for thermal expansion and contraction but also anti rotation features are needed in order to prevent damage when a supply coupling is connected through a pipe end. This anti-rotation feature is generally provided between a top hat and a pipe end through flanges. In order to allow reduced spacing between the top of the vane and a casing the flanges are arranged to allow at least recessing of a first flange into a passage opening profile whereby those flanges inter-engage with second flanges at a surface interface to prevent rotation.
REFERENCES:
patent: 2195492 (1940-04-01), McDonald
patent: 3544138 (1970-12-01), von Eiff
patent: 3623753 (1971-11-01), Henry
patent: 3741680 (1973-06-01), Killmann et al.
patent: 3829816 (1974-08-01), Barry et al.
patent: 4245951 (1981-01-01), Minnich
patent: 5127293 (1992-07-01), Chatham
patent: 6439616 (2002-08-01), Karafillis
patent: 2004092398 AB (2004-03-01), None
Hillier Steven M
Richards William
Manelli Denison & Selter PLLC
Melcher Jeffrey S.
Rolls-Royce plc
Verdier Christopher
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