Metal founding – Means to apply vacuum directly to work or to hold or... – Means applying vacuum or suction directly to molten casting...
Reexamination Certificate
2006-01-03
2006-01-03
Lin, Kuang Y. (Department: 1725)
Metal founding
Means to apply vacuum directly to work or to hold or...
Means applying vacuum or suction directly to molten casting...
C164S256000, C164S338100
Reexamination Certificate
active
06981541
ABSTRACT:
A casting furnace for use in melting and molding metals. The furnace has a mold insertion and withdrawal system attached thereto and incorporates an offset mold elevator for moving a mold up and down from a mold chamber to a furnace chamber while eliminating the need for a pit. The furnace further includes a readily removable chill plate on which the mold rides. An overhead material feed system is also provided.
REFERENCES:
patent: 3895672 (1975-07-01), King, Jr. et al.
patent: 4541475 (1985-09-01), Goddard et al.
patent: 6308767 (2001-10-01), Hugo et al.
Lectrotherm, Inc.
Lin Kuang Y.
Sand & Sebolt
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