Plastic and nonmetallic article shaping or treating: processes – Direct application of fluid pressure differential to... – Production of continuous or running length
Patent
1983-03-09
1984-08-28
Silbaugh, Jan H.
Plastic and nonmetallic article shaping or treating: processes
Direct application of fluid pressure differential to...
Production of continuous or running length
264568, B29C 1700, B29D 2300
Patent
active
044683693
ABSTRACT:
A process for the calibration of a profiled article of thermoplastic synthetic resin wherein a vacuum is applied to the external surface of the profiled article while the article is drawn through a calibrating tool and wherein the profile surface of the profiled article is cooled indirectly by a liquid coolant flowing through ducts within the calibrating tool involves applying a vacuum via a plurality of slots within the calibrating tool which are placed adjoining the profile surface and feeding coolant through the ducts of the calibrating tool in such a manner that the coolant is discharged by means of the vacuum via the profile surface which is under the vacuum.
REFERENCES:
patent: 3546745 (1970-12-01), Ball
patent: 3668288 (1972-06-01), Takahashi
patent: 4120926 (1978-10-01), Titz
patent: 4181487 (1980-01-01), Kessler
Journal Plastverarbeiter, 1977, p. 516.
Gauchel Peter
Kurth Josef
Dynamit Nobel Aktiengesellschaft
Silbaugh Jan H.
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