Patent ID: 7448428

Claim:
A method of casting, said method comprising the steps of providing a mold having at least one article mold cavity, moving the mold into a furnace, filling the at least one article mold cavity with molten metal while the mold is in the furnace, removing the mold from the furnace with metal in the mold, thereafter, positioning a heater above the mold, said step of positioning the heater above the mold includes moving the heater relative to the furnace, moving a panel from a position blocking an entrance to a chamber in the heater to a position in which the panel is ineffective to block the entrance to the chamber in the heater, and transmitting heat from the chamber in the heater to metal in the mold after moving the panel to the position in which the panel is ineffective to block the entrance to the chamber in the heater, said step of transmitting heat from the chamber in the heater to metal in the mold is at least partially performed with the heater above the mold.