초록 ▼

A process for manufacturing such multi-layer conduit comprises simultaneously extruding a multiplicity of layers through a multiple head extruder. Advantageously, a tab as desired may be formed by pinching the extruded parison after initially blowing the parison and before finally blowing the pariso

A process for manufacturing such multi-layer conduit comprises simultaneously extruding a multiplicity of layers through a multiple head extruder. Advantageously, a tab as desired may be formed by pinching the extruded parison after initially blowing the parison and before finally blowing the parison.

대표청구항 ▼

[ We claim:] [1.] A multi-layer conduit suitable for use as a filler conduit for hydrocarbon containing fuels comprising a plurality of layers including:i) an inner layer, said inner layer comprised of electrically conductive high density polyethylene, andii) a barrier layer, said barrier layer subs

[ We claim:] [1.] A multi-layer conduit suitable for use as a filler conduit for hydrocarbon containing fuels comprising a plurality of layers including:i) an inner layer, said inner layer comprised of electrically conductive high density polyethylene, andii) a barrier layer, said barrier layer substantially inhibiting the passage of gaseous hydrocarbons from inside said filler conduit through said conduit as hydrocarbon fuel travels along said conduit and wherein said conduit comprises a tab, said tab located intermediate ends of said conduit, said tab comprising a web, and said web of said tab is electrically connected to said inner layer of said conduit.