Rotary kinetic fluid motors or pumps – Working fluid passage or distributing means associated with... – Plural rigidly related blade sets
Reexamination Certificate
2005-12-13
2005-12-13
Look, Edward K. (Department: 3745)
Rotary kinetic fluid motors or pumps
Working fluid passage or distributing means associated with...
Plural rigidly related blade sets
C415S914000
Reexamination Certificate
active
06974304
ABSTRACT:
A centrifugal compressor for high pressure (10) with improved efficiency, of the type comprising a rotor (12), an inner case (14), diffusers (16) and diaphragms (18), wherein the surfaces which are subjected to passage of the flow of gas have been subjected to burnishing working.
REFERENCES:
patent: 3976395 (1976-08-01), Kalnin et al.
patent: 2004/0006870 (2004-01-01), Sasu et al.
Franchi Stefano
Mantellassi Stefano
Mellone Giovanni
Edgar Richard A.
Look Edward K.
Nixon & Vanderhye P.C.
Nuovo Pignone Holding S.p.A.
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