Plastic article or earthenware shaping or treating: apparatus – Means providing a shaping orifice – Single inlet – plural shaping orifices
Patent
1976-01-20
1977-04-05
Husar, Francis S.
Plastic article or earthenware shaping or treating: apparatus
Means providing a shaping orifice
Single inlet, plural shaping orifices
425376R, 425382R, B29F 304
Patent
active
040159264
ABSTRACT:
An extrusion die head for attachment to an extruder wherein the die head has a single inlet bore that is connected to a plurality of outlet orifices via a chamber which spreads out the extrudate which in turn reduces the shape of the extrudate to a thin film via a narrow channel to equalize the pressure. The narrow channel is connected to the plural orifices via tapering passageways to provide an equalization of the flow of the extrudate.
REFERENCES:
patent: 2197988 (1940-04-01), Tanzi
patent: 3887322 (1975-06-01), Johnson et al.
Husar Francis S.
Januszkiewicz Joseph
Rosenbaum Mark
Shira, Jr. W. A.
The B. F. Goodrich Company
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