Metal founding – Process – Shaping liquid metal against a forming surface
Reexamination Certificate
2007-06-26
2007-06-26
Kerns, Kevin (Department: 1725)
Metal founding
Process
Shaping liquid metal against a forming surface
C164S132000, C164S028000, C164S122100, C164S122200
Reexamination Certificate
active
11431282
ABSTRACT:
A ceramic core for use in casting an article such as for example an airfoil, wherein the ceramic core has a pocket located at or near a region of the core that is otherwise associated with occurrence of a localized casting defect in the cast article. A covering is disposed on the core to cover the pocket and provide core outer surface features.
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Corrigan John
Grunstra Robert E.
Howmet Research Corporation
Kerns Kevin
Lin I.-H.
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