Airvessel for molding by expansive waves

Metal founding – Means to shape a forming surface – Including means for compacting particulate fluent mold...

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164 37, B22C 1500

Patent

active

049305646

ABSTRACT:
An airvessel for molding articles comprises a tank, a highly elastic membrane formed as a valve element and fixed in the tank by flanges to a support plate to form an annular chamber which may be pressurized via an air supply conduit to deform the membrane towards a closure position in which the membrane falls upon a valve seat. An opening is established in the center of the membrane-support plate assembly to which is axially coupled an outlet conduit for release of residual air which is present in a diffuser positioned below the membrane and coupled to a mold box.

REFERENCES:
patent: 4565233 (1986-01-01), Fischer et al.
patent: 4565235 (1986-01-01), Fischer et al.
patent: 4609033 (1986-09-01), Kobel et al.
patent: 4620585 (1986-11-01), Muller et al.

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