Metal founding – Process – Shaping a forming surface
Reexamination Certificate
2007-12-04
2007-12-04
Kerns, Kevin (Department: 1725)
Metal founding
Process
Shaping a forming surface
C164S030000, C164S045000, C164S047000, C164S138000, C164S516000
Reexamination Certificate
active
10841366
ABSTRACT:
A method of forming at least one concavity of a selected size and shape within a surface of an internal passageway of a metallic component comprises: depositing a ceramic-based material by a direct-write technique onto a ceramic core which is suitable for forming the internal passageway during a casting process to form the metallic component, wherein the ceramic-based material is deposited as a positive feature; heat-treating the deposited ceramic-based material; forming the metallic component by a casting process in which the ceramic core is incorporated into the casting, in a position selected as a desired position for the internal passageway; and then removing the ceramic core from the metal component after the casting process is complete, thereby forming the internal passageway, with the concavity contained within the surface of the passageway, said concavity formed by removal of the positive feature of the ceramic-based material.
REFERENCES:
patent: 3654984 (1972-04-01), Mellen, Jr. et al.
patent: 4097292 (1978-06-01), Huseby et al.
patent: 4141781 (1979-02-01), Greskovich et al.
patent: 4561491 (1985-12-01), Slack
patent: 5014763 (1991-05-01), Frank
patent: 5060116 (1991-10-01), Grobman et al.
patent: 5154945 (1992-10-01), Baldwin et al.
patent: 5250136 (1993-10-01), O'Connor
patent: 5690472 (1997-11-01), Lee
patent: 5985368 (1999-11-01), Sangeeta et al.
patent: 6025036 (2000-02-01), McGill et al.
patent: 6255000 (2001-07-01), O'Connor et al.
patent: 6268584 (2001-07-01), Keicher et al.
patent: 6504274 (2003-01-01), Bunker et al.
patent: 6505673 (2003-01-01), Abuaf et al.
patent: 6576861 (2003-06-01), Sampath et al.
patent: 6588484 (2003-07-01), Fosaaen et al.
patent: 6589600 (2003-07-01), Hasz et al.
patent: 6613445 (2003-09-01), Sangeeta et al.
patent: 6636676 (2003-10-01), Renn
patent: 6644921 (2003-11-01), Bunker et al.
patent: 6660343 (2003-12-01), McGill et al.
patent: 6660680 (2003-12-01), Hampden-Smith et al.
patent: 6887528 (2005-05-01), Lau et al.
patent: 6921014 (2005-07-01), Hasz et al.
patent: 2003/0148539 (2003-08-01), van Dam et al.
patent: 2001164901 (2001-06-01), None
U.S. Appl. No. 10/611,745, filed Jun. 30, 2003, Entitled “Component and Turbine Assembly With Film Cooling”, by Ronald S. Bunker, et al.
U.S. Appl. No. 10/622,063, filed Jul. 17, 2003, Entitled “Robotic Pen” by Stephen F. Rutkowski, et al.
U.S. Appl. No. 10/326,618, filed Dec. 23, 2002, Entitled “Method and Composition to Repair and Build Structures”, by C.U. Hardwicke, et al.
Bunker Ronald Scott
Hardwicke Canan Uslu
Lee Ching-Pang
Coppa Francis T.
Kerns Kevin
Lin I.-H.
Patnode Patrick K.
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