Hose assembly

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A hose assembly made in accordance with the present invention is generally shown at 10 in FIGS.
1 and 2.
The assembly 10 includes a tubular inner liner 12, an outer liner 14 disposed about the inner liner 12, an integral conductive means 16 coextensive with the length of the inner liner 12, and a coupling means 18 (FIG.
3) adapted to engage the ends of the hose assembly 10.
The tubular inner liner 12, as best shown in FIGS.
1 and 2, comprises a polymeric fluorocarbon material resistant to both chemical and heat degradation, thus allowing a variety of fluids, particularly automotive fuels and fuel additives, e.
g.
, detergents, alcohols, etc.
, to pass through the inner liner 12 without corroding or degradating the inner liner 12.
The inner liner 12 is preferably extruded using well-known melt or paste extrusion techniques and has a wall thickness of between 0.
001 and 0.
120 inches.
Although the inner liner 12 may be made of any number of polymeric fluorocarbon materials, the inner liner 12 is ideally made from a polymer of the following: polytetrafluoroethylene (PTFE), the homopolymer of tetrafluoroethylene sold under the trademark TEFLON by DuPont; perfluorinated ethylene-propylene (FEP), the copolymer of tetrafluoroethylene and hexafluoropropylene sold under the trademark TEFLON FEP by DuPont; perfluoralkoxy fluorocarbon resins (PFA), the copolymer of tetrafluoroethylene-perfluorovinyl ether sold under the trademark TEFLON PFA by DuPont; or ethylene tetrafluoroethylene (ETFE), the copolymer of ethylene and tetrafluoroethylene sold under the trademark TEFZEL by DuPont.
In addition to the aforementioned polymeric fluorocarbon materials, polychlorotrifluoroethylene, the homopolymer of chlorotrifluoroethylene, and polychlorotrifluoroethylene-ethylene, the copolymer of chlorotrifluoroethylene and ethylene may also be used.
The outer liner 14, best shown in FIGS.
1 and 2, is disposed about the inner liner 12.
The outer liner 14 comprises a polyamide material for increasing the strength of the hose assembly 10