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(11) | EP 0 747 317 A3 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | Spout constructions for fuel dispensing nozzles and methods for making same |
| (57) A vapor recovery nozzle includes a spout construction comprising an outer aluminum
tube and an inner nylon tube. The distal ends of the tubes are joined so that the
inner tube defines a central fuel passage and, in combination with the outer tube,
defines a generally annular vapor return passage. A distal end portion of the outer
tube has a reduced wall thickness and its inner end is expanded to mount a locator
ring thereon. The spout assembly is telescoped into an adapter that connects the fuel
and vapor passages to corresponding passages in the nozzle body. A spout nut threads
into the nozzle body and engages the locator ring to mount the spout on the nozzle.
The outer spout tube is formed by lathe operations which include turning a fracture
groove adjacent its inner end, and, thereafter bending the tube to angle the distal
end portion of the tube downwardly from its inner end. A second embodiment teaches
the use of structural, synthetic resins in forming the outer spout tube. In an alternate
embodiment the outer spout tube is compositely formed an outer end portion that provides
increased strength for the that portion, where a thin wall tube is employed. |