B - Operations – Transporting – 22 – C
Patent
B - Operations, Transporting
22
C
22/39
B22C 15/00 (2006.01)
Patent
CA 2000632
ABSTRACT IMPROVEMENTS INTRODUCED IN AIR IMPACT MOLDING MACHINES Such improvements consist in arranging the sand supplying hopper axially inside the compressed air bell-shaped ejector so that an annular mouth is defined for the latter that surrounds the hopper discharge mouth, the two mouths facing the classic diffuser that caps the top of the molding chamber. The valve closing the bell-shaped ejector is a tubular membrane valve that is adapted and fixed through its edges to the internal surface of the diffuser, at the coaxial sector that faces the hopper.
de Foronda Fernandez Vicente Lopez
Fetherstonhaugh & Co.
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