Metal founding – Process – Shaping a forming surface
Reexamination Certificate
2006-03-14
2006-03-14
Lin, Kuang Y. (Department: 1725)
Metal founding
Process
Shaping a forming surface
C164S122200, C164S361000
Reexamination Certificate
active
07011141
ABSTRACT:
A mold is provided for enabling casting of single crystal metallic articles including a part-defining cavity, a sorter passage positioned vertically beneath and in fluid communication with the part-defining cavity, and a seed cavity positioned vertically beneath and in fluid communication with the sorter passage. The sorter passage includes a shape suitable for encouraging a single crystal structure in solidifying molten metal. Additionally, a portion of the mold between the sorter passage and the part-defining cavity includes a notch for facilitating breakage of a cast article proximate the notch during thermal stress build-up, so as to prevent mold breakage or the inclusion of part defects.
REFERENCES:
patent: 3260505 (1966-07-01), Ver Snyder
patent: 3494709 (1970-02-01), Piearcey
patent: 3542120 (1970-11-01), Piearcey
patent: 3568757 (1971-03-01), Piearcey
patent: 3572419 (1971-03-01), Barrow et al.
patent: 3981346 (1976-09-01), Hayes et al.
patent: 4475582 (1984-10-01), Giamei et al.
patent: 4549599 (1985-10-01), Reiner et al.
patent: 4804311 (1989-02-01), Anderson et al.
patent: 4940073 (1990-07-01), Jeyarajan et al.
patent: 5062469 (1991-11-01), Monte et al.
patent: 6497272 (2002-12-01), Maslen
Gigliotti, Jr. Michael Francis X.
Huang Shyh-Chin
Petterson Roger John
Rutkowski Stephen Francis
Svec Paul Steven
Cabou Christian G.
General Electric Company
Lin Kuang Y.
Patnode Patrick K.
LandOfFree
Apparatus and method for producing single crystal metallic... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for producing single crystal metallic..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for producing single crystal metallic... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3609620