Elongated structural member and method and apparatus for making same

An elongated, substantially rigid member suitable for use as a marine piling is formed by feeding a substantially solid plastic core into a die and continuously extruding a molten plastic into the die so that the molten plastic surrounds and bonds to the plastic core and to reinforcing bars fed into...

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Bibliographische Detailangaben
Hauptverfasser:	MENGE, JOHN, H, MARCH, FRANK, A, PONTIFF, THOMAS, M, GOULD, RUSSEL, J, TAYLOR, ROBERT, B
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING BUILDING BUILDING MATERIALS CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES EMBANKMENTS EXCAVATIONS FIXED CONSTRUCTIONS FOUNDATIONS HYDRAULIC ENGINEERING INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS MACHINES FOR MAKING RAILWAYS OF ALL KINDS PERFORMING OPERATIONS PERMANENT WAY PERMANENT-WAY TOOLS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS SOIL SHIFTING STRUCTURAL ELEMENTS TRANSPORTING UNDERGROUND OR UNDERWATER STRUCTURES WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	An elongated, substantially rigid member suitable for use as a marine piling is formed by feeding a substantially solid plastic core into a die and continuously extruding a molten plastic into the die so that the molten plastic surrounds and bonds to the plastic core and to reinforcing bars fed into the die at positions surrounding the plastic core. The plastic core acts as a heat sink to facilitate cooling of the molten plastic and deters bending of the member while cooling.