Metal founding – Means to shape metallic material – Including ladle or crucible type melt receptacle
Patent
1977-04-25
1978-10-24
Spicer, Jr., Robert L.
Metal founding
Means to shape metallic material
Including ladle or crucible type melt receptacle
B22D 3700
Patent
active
041216512
ABSTRACT:
A casting device comprising a receptacle having an exit orifice at its lower end, a tubular stem carrying a valve for sealing the orifice, a rod in the stem and a valve member carried by the rod for opening and closing the bottom end of an annular space formed between the rod and the stem.
REFERENCES:
patent: 3206301 (1965-09-01), Daubersy
patent: 3352351 (1967-11-01), Sickbert
patent: 3655176 (1972-04-01), Winkler et al.
patent: 3749387 (1973-07-01), Andrzejak et al.
Drucker William Anthony
Spicer, Jr. Robert L.
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