Plastic and nonmetallic article shaping or treating: processes – Forming continuous or indefinite length work – Shaping by extrusion
Patent
1996-03-19
1997-11-18
Tentoni, Leo B.
Plastic and nonmetallic article shaping or treating: processes
Forming continuous or indefinite length work
Shaping by extrusion
26421114, 264237, 425 722, 4253782, 4253822, B29C 3516, D01D 512
Patent
active
056884583
ABSTRACT:
Filaments emerging from the nozzle plate of a spinneret are cooled by being passed through a cooling channel. The motion of the filaments through the cooling channel serves to suck-in air through an air inlet arrangement of the cooling channel. The air inlet arrangement includes an upper air inlet which sucks-in air at the underside of the nozzle plate, so that the filaments are contacted by the cooling air immediately upon emerging from the nozzle plate. Contact of the cooling air with the filaments (which are drawn off at a speed of at least 2400 m/min) takes place throughout the length of the cooling channel.
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patent: 3611485 (1971-10-01), Leybourne, III et al.
patent: 4496505 (1985-01-01), Tanji et al.
patent: 4529368 (1985-07-01), Makansi
patent: 4712988 (1987-12-01), Broaddus et al.
patent: 5234327 (1993-08-01), Martin
patent: 5340517 (1994-08-01), Koschinek et al.
patent: 5360589 (1994-11-01), Wandel et al.
Abstract of Japan 56-96,908 (Published Aug. 5, 1981).
Koschinek Gunter
Wandel Dietmar
Maschinenfabrik Rieter AG
Tentoni Leo B.
Zimmer AG
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