Plastic article or earthenware shaping or treating: apparatus – Means to create a vacuum or apply fluid pressure within a...
Patent
1986-05-07
1988-01-26
Woo, Jay H.
Plastic article or earthenware shaping or treating: apparatus
Means to create a vacuum or apply fluid pressure within a...
264 60, 425412, B30B 928
Patent
active
047214503
ABSTRACT:
A device for producing ceramic mouldings is disclosed comprising an isostatic press-mould half having an isostatic pressure membrane and an injection head having an inlet opening for introducing granulate and an extraction orifice for sucking the granulate in or out of the mould cavity. The injection head is spring-mounted on a press crosspiece which supports it, so that, as the injection head moves towards the isostatic press-mould half, a sealing pressure slowly forms between the injection head and the isostatic press-mould half and as the injection head moves away from the isostatic press-mould half this sealing pressure is slowly reduced.
REFERENCES:
patent: 4043730 (1977-08-01), Bettonica
patent: 4157887 (1979-06-01), Sothje
patent: 4473526 (1984-09-01), Buhler et al.
patent: 4588368 (1986-05-01), Buhler et al.
Buhler Eugen
Schwarzmeir Karl
Strobel Klaus
Eugen Buhler & Hutschenreuther AG
Fortenberry J. L.
Woo Jay H.
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