Metal founding – Means to shape metallic material – Pressure shaping means
Patent
1995-09-27
1996-10-08
Batten, Jr., J. Reed
Metal founding
Means to shape metallic material
Pressure shaping means
164410, B22D 1720
Patent
active
055621503
ABSTRACT:
The vent includes a plurality of passages formed by a plurality of stacked plates. The passages are dimensioned to permit the free flow of air but to prohibit the passage of molten metal. During die casting, air is free to exit the die while molten metal is retained.
REFERENCES:
patent: 4352388 (1982-10-01), Perrella
Batten, Jr. J. Reed
Nelson Metal Products Corporation
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