Metal founding – Process – Shaping a forming surface
Reexamination Certificate
2007-01-16
2007-01-16
Tran, Len (Department: 1725)
Metal founding
Process
Shaping a forming surface
C164S012000, C164S029000, C164S369000
Reexamination Certificate
active
10643568
ABSTRACT:
The present invention relates to A method and apparatus for making a sand core (112) utilizing purge air through a core box (100and100′) to harden the binder in the sand core (112) proximate the ejection pins (106and106′). The sand core (112) may be removed from the core box (100and100′) prior to drying the binder completely thereby resulting in an improved production rate of the sand core (112).
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Eastman Jeremy D.
Herreid Richard M.
Yunovich Yuliy M.
Hormel Foods, LLC
IPLM Group, P.A.
Tran Len
LandOfFree
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