Method for cooling and if necessary calibrating articles of plastic
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United States of America Patent
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May 23, 2000
Grant Date -
N/A
app pub date -
Aug 13, 1998
filing date -
Feb 13, 1996
priority date (Note) -
Expired
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Abstract
A method for cooling and if necessary calibrating elongate articles 7 of plastic, in which the article 7, during its continuous progress has flowing round it only a gaseous cooling medium 42 at a temperature of less than 100.degree. C. at least over a portion of its outer surface and extending over a pre-determinable length of the article 7, in a plurality of flow areas 25-35' separate from one another and located one behind the other in the extrusion direction, arrow 5.
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