Plastic and nonmetallic article shaping or treating: processes – Pore forming in situ – Composite article making
Patent
1990-04-23
1992-07-21
Thurlow, Jeffery
Plastic and nonmetallic article shaping or treating: processes
Pore forming in situ
Composite article making
264 459, 2642094, 2642097, 425 4C, 4253791, 425817C, B29C 4790
Patent
active
051320622
ABSTRACT:
The extrusion head has a head body which accommodates a male element and defines, in co-operation with the male element, a passage for material to be extruded. The passage extends around the male element and leads outward through an extrusion hole which is located proximate to an end of the head. A cooling element is applied at the extrusion hole and a hole is defined therein for the passage of the extruded material. The latter hole has a configuration which corresponds to the profile of the extruded element to be obtained, in order to achieve the rapid cooling of the extruded element exiting from the extrusion hole.
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patent: 3299192 (1967-01-01), Lux
patent: 3713762 (1973-01-01), Oisugu
patent: 3764642 (1973-10-01), Boutillier
patent: 3857914 (1974-12-01), Aishima et al.
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patent: 4154563 (1979-05-01), Johnson
patent: 4362683 (1982-12-01), Otsuka et al.
patent: 4732718 (1988-03-01), Jentet
patent: 4960549 (1990-10-01), Brooks et al.
Brabor S.r.l.
Josif Albert
Modiano Guido
Thurlow Jeffery
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