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Individual
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Individual
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Priority to ES303619ApriorityCriticalpatent/ES303619A3/en
Publication of ES303619A3publicationCriticalpatent/ES303619A3/en
Shaping Of Tube Ends By Bending Or Straightening
(AREA)
Abstract
Procedure for the continuous manufacture of corrugated, flexible and thin-walled tubes, made of thermoplastic synthetic materials, by extrusion with a circular nozzle, characterized by the fact that the tube, still plastic by heat, leaves the nozzle circular, is passed over a mandrel appendix applied directly to the core of the nozzle and through the friction that occurs, is stressed in the longitudinal direction, with formation of circular folds in regular succession. (Machine-translation by Google Translate, not legally binding)
ES303619A1964-08-191964-08-19Procedure for the continuous manufacture of rolled pipes (Machine-translation by Google Translate, not legally binding)
ExpiredES303619A3
(en)
System, with its corresponding machine for the manufacture of pipes of plastic material ondulado. (Machine-translation by Google Translate, not legally binding)
A device for the manufacture, from a thermoplastic material, of any transverse section bodies. (Machine-translation by Google Translate, not legally binding)
Procedure for the manufacture of curved pipes of plastic material and device for its realization. (Machine-translation by Google Translate, not legally binding)
Improvements in the appropriate devices to allow the calibration of plastic material tubes. (Machine-translation by Google Translate, not legally binding)