Appeal No. 1997-4118
Application No. 08/381,814
Claims
9. A petrol supply tube comprising five concentric layers
wherein the innermost layer comprises polyamide, the outermost
layer comprises polyamide, the middle layer comprises
fluoropolymer, and two layers of adhesive bonding agent
polymers or copolymers that contain carbonyl groups in their
polymer chains are situated respectively between said middle
layer and said innermost and outermost layers.
16. A method of feeding petrol to an engine that
comprises causing said petrol to flow from a source of petrol
through a petrol feed pipe in accordance with any one of
claims 9 to 11 and into said engine.
17. A method of making a petrol supply tube in
accordance with any one of claims 9 to 11 which comprises
coextruding said inner, outer, middle, and two adhesive
layers.
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