Metal founding – Process – Shaping a forming surface
Reexamination Certificate
2011-04-05
2011-04-05
Lin, Kuang (Department: 1735)
Metal founding
Process
Shaping a forming surface
C164S122200, C164S361000
Reexamination Certificate
active
07918265
ABSTRACT:
An investment casting mold article includes a wall for retaining casting material and a cavity defined by the wall. The cavity includes an airfoil portion, a root portion adjacent to the airfoil portion, and a labyrinth seal portion extending from the root portion.
REFERENCES:
patent: 3853425 (1974-12-01), Scalzo et al.
patent: 3981344 (1976-09-01), Hayes et al.
patent: 4062638 (1977-12-01), Hall, Jr.
patent: 4116723 (1978-09-01), Gell et al.
patent: 4469160 (1984-09-01), Giamei
patent: 4813470 (1989-03-01), Chiang
patent: 5062469 (1991-11-01), Monte et al.
patent: 5295530 (1994-03-01), O'Connor et al.
patent: 5489194 (1996-02-01), Yoshinari et al.
patent: 5967745 (1999-10-01), Tomita et al.
patent: 6984112 (2006-01-01), Zhang et al.
patent: 7121800 (2006-10-01), Beattie
patent: 7231955 (2007-06-01), Bullied et al.
patent: 7264036 (2007-09-01), Chang et al.
patent: 2005/0186074 (2005-08-01), Tomita et al.
patent: 2006/0275106 (2006-12-01), Alvanos et al.
patent: 2006/0275107 (2006-12-01), Alvanos et al.
patent: 2006/0275108 (2006-12-01), Memmen et al.
patent: 2007/0098545 (2007-05-01), Alvanos et al.
patent: 2008/0263863 (2008-10-01), Rose
patent: 179649 (1986-04-01), None
patent: 1 510 271 (2005-03-01), None
patent: 1 764 484 (2007-03-01), None
patent: 2 010 404 (1979-06-01), None
patent: 2194000 (1988-02-01), None
patent: 2 307 520 (1997-05-01), None
Official Search Report and Written Opinion of the European Patent Office in counterpart foreign Application No. 09250238.4 filed Jan. 29, 2009.
Bullied Steven J.
Verner Carl R.
Kinney & Lange , P.A.
Lin Kuang
United Technologies Corporation
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