Low permeation fuel hose

Details Low permeation fuel hose Low permeation fuel hose

1992-08-25

1995-03-21

Scherbel, David A.

Pipes and tubular conduits

Flexible

Spirally wound material

138138, 138144, F16L 1108

Patent

active

053987292

ABSTRACT:
A fuel hose is provided which can be cured into a predetermined shape and which contains a layer of material which, in the final form of the hose, provides a continuous barrier to permeation of fuel through the walls of the hose. A method of making such a hose is disclosed which includes steps added to known hose manufacturing methods, using a thin fuel impermeable tape, which may include a continuous metallic layers and which is wound helically about an inner uncured tubular rubber extrusion with the edges of the tape overlapping. The tape has a heat activated adhesive thereon which will function, when an outer uncured rubber layer is added and the composite uncured hose is placed in an autoclave for vulcanization, to form a continuous impermeable intermediate layer in the hose.

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