Metal founding – Process – Shaping liquid metal against a forming surface
Reexamination Certificate
2007-07-17
2007-07-17
Kerns, Kevin (Department: 1725)
Metal founding
Process
Shaping liquid metal against a forming surface
C164S345000, C134S002000, C134S16600C
Reexamination Certificate
active
11261164
ABSTRACT:
To destructively remove a refractory metal casting core from a cast part the part is exposed to a combination of nitric acid and sulfuric acid.
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Beals James T.
Lomasney Gary M.
Parkos, Jr. Joseph J.
Bachman & LaPointe P.C.
Kerns Kevin
Lin I.-H.
United Technologies Corporation
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