Multi-layer plastic helical pipe and method for the production thereof

A method of producing large-diameter helical pipes for plastic synthetic resins wherein the pipe has an outer layer comprised of a first plastic resin and an inner layer comprised of a second plastic resin. In a particularly preferred embodiment, a helical pipe having an outer layer which is an ultr...

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Bibliographische Detailangaben
Hauptverfasser:	DEMASTERS, JIMMIE G
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING JOINTS OR FITTINGS FOR PIPES LIGHTING MEANS FOR THERMAL INSULATION IN GENERAL MECHANICAL ENGINEERING PIPES SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ARTCOLLECTIONS [XRACs] AND DIGESTS THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A method of producing large-diameter helical pipes for plastic synthetic resins wherein the pipe has an outer layer comprised of a first plastic resin and an inner layer comprised of a second plastic resin. In a particularly preferred embodiment, a helical pipe having an outer layer which is an ultraviolet light-protective color and an inner plastic layer which is a light-reflecting color is provided.