Cleaning and liquid contact with solids – Processes – Hollow work – internal surface treatment
Reexamination Certificate
2003-12-29
2008-08-05
EL-Arini, Zeinab E (Department: 1792)
Cleaning and liquid contact with solids
Processes
Hollow work, internal surface treatment
C134S022110, C134S022120, C134S022180, C134S024000, C134S025100, C134S034000, C134S16600C, C134S16900A, C134S172000
Reexamination Certificate
active
07406971
ABSTRACT:
An improved method for flushing the residue from internal surfaces of cavities in, for example, turbine blades. In accordance with one aspect of the invention, provision is made for simultaneously flushing the internal cavities of a plurality of turbine blades, with each blade having a plurality of cavities therein.
REFERENCES:
patent: 1492905 (1924-05-01), Swanick
patent: 5464479 (1995-11-01), Kenton et al.
patent: 5679174 (1997-10-01), Buongiorno
EL-Arini Zeinab E
Marjama Muldoon Blasiak & Sullivan LLP
United Technologies Corporation
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