Plastic article or earthenware shaping or treating: apparatus – Including means advancing continuous length work through...
Patent
1981-10-27
1984-10-23
Anderson, Philip
Plastic article or earthenware shaping or treating: apparatus
Including means advancing continuous length work through...
264 407, 264150, 2642097, 425139, 425308, 425382R, 425464, 425467, B29C 2500, B29D 2304, B29F 304, B29F 308
Patent
active
044785631
ABSTRACT:
The present invention concerns manufacture of cellular structures of thermoplastics material. In particular the invention concerns apparatus for use in the production of cellular structures of thermoplastics material comprising a supply and injection stage (b) for supplying the thermoplastics material (12), a die stage (c) through which the thermoplastics material supplied by the supply and injection stage is extruded to form the cellular structure (15), and a cooling stage (d) supplied in use with cooling fluid (4) for cooling the extruded thermoplastics material, the different stages being located one above the other and the apparatus further comprising a plurality of regularly spaced cylinders (7), each cylinder (7) having a lower part (10) of lesser diameter provided with heating means (11) and an upper part (8) of greater diameter, the bodies of the cylinders extending through the supply and injection stage and the upper parts thereof forming said die stage. The invention is particularly applicable to the manufacture of cellular structures of large dimensions for buildings.
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Anderson Philip
Indumat S.A.
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