Patent ID: 6189723
Filing Date: 2001-02-20
Classification: F17C,Y10T

Abstract:
In combination,a composite laminated generally cylindrical container for over-the-road transportation of liquids by truck, the container comprising:a cylindrical portion, the cylindrical portion comprising:a cylindrical core comprising cellular thermoplastic expanded foam material, andan encapsulating layer adhered to each of the interior and exterior surfaces of the cylindrical core, the cylindrical core and the encapsulating layers defining a bonded sandwich construction for the cylindrical portion, the encapsulating layers each comprising:at least one layer comprising resin-impregnated, substantially unidirectional filaments, the filaments extending in the longitudinal direction of the cylindrical portion, anda plurality of layers of spirally wound, resin-impregnated filaments adhered to the layer of unidirectional filaments; anda pair of end caps for the cylindrical portion, at least one of the end caps comprising:a core comprising cellular thermoplastic expanded foam material, andan encapsulating layer adhered to each of the interior and exterior surfaces of the core, the encapsulating layers comprisingat least one layer of resin-impregnated warp unidirectional filament material with the warp filaments of the warp unidirectional filament material extending in the circumferential direction of the end cap, anda plurality of lengths of resin-impregnated filaments extending generally radially across the end cap.