A buoyancy float manufacturing process

An extrusion blow moulding process for manufacturing a buoyancy float of the type comprising an inflatable elongate hollow body of thermoplastics material, carrying at each end a support connector which in turn carries at least a pair of spaced apart anchorages. The process comprises forming a paris...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Geoghegan, Patrick Gerard, Milligan, William Alec
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING AGRICULTURE ANIMAL HUSBANDRY CARE OF BIRDS, FISHES, INSECTS EQUIPMENT FOR SHIPPING FISHING FORESTRY HUMAN NECESSITIES HUNTING NEW BREEDS OF ANIMALS PERFORMING OPERATIONS REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR RELATED EQUIPMENT SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS SHIPS OR OTHER WATERBORNE VESSELS TRANSPORTING TRAPPING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	An extrusion blow moulding process for manufacturing a buoyancy float of the type comprising an inflatable elongate hollow body of thermoplastics material, carrying at each end a support connector which in turn carries at least a pair of spaced apart anchorages. The process comprises forming a parison having a pair of spaced apart thickened end portions joined by a thinner neck portion such that the amount of material in the thickened end portions fills that portion of the mould used to form each support connector whereby effectively on closing the mould that portion of the thermoplastics material is compression moulded.