Patent ID: 6755235
Filing Date: 2004-06-29
Classification: B22D

Abstract:
A quick-change lock assembly for releasably attaching a fill tube to a mold in a casting machine, the fill tube connecting a furnace to the mold, said assembly comprising:an upper ring adapted to be attached adjacent an aperture in a surface of the mold of the casting machine, said outer ring having an inner surface and an outer surface, said inner and outer surfaces of said upper ring being concentric; and a lower ring having an inner surface and an outer surface, said inner and outer surfaces of said lower ring being concentric, said inner surface of said lower ring adapted to receive a fill tube, said outer surface of said lower ring adapted to be releasably attached to said inner surface of said upper ring, whereby when said upper ring is attached to the surface of the mold, the fill tube is received by said inner surface of said lower ring and said lower ring is attached to said inner surface of said upper ring and the fill tube extends through the aperture into the mold, said lower ring seals the fill tube to allow molten material to flow from the furnace and through the fill tube into the mold without leaking.