Receptacles – Container attachment or adjunct – Filling member
Patent
1998-05-14
1999-10-05
Moy, Joseph M.
Receptacles
Container attachment or adjunct
Filling member
138145, 138153, 138DIG7, 220 862, F16L 1112, B65D 2500
Patent
active
059609770
ABSTRACT:
A polymeric, multiple-layer tube suitable for use as a filler neck is disclosed. The tube is comprised of a generally cylindrical wall having an outer surface and an inner surface. The inner surface is approximately parallel to the outer surface and defines a generally cylindrical interior having a diameter D. The cylindrical interior, which provides a flow path for fuel, extends throughout the length of the tube. The tube is divided into one or more contiguous first and second longitudinal segments. In the first longitudinal segment, D is approximately constant along the length of the segment; in the second longitudinal segment, D varies with axial position. This variation defines a convolution, which allows the filler tube to be bent without crimping. The cylindrical wall of the multiple-layer tube further comprises an outer layer composed of a thermoplastic elastomer, and an inner layer composed of an extrudable melt-processible thermoplastic having an elongation of at least 150%. Though in contact, the two layers are not bonded together. When compounded with suitable additives, the filler neck tube exhibits good abrasion resistance, is nearly impermeable to hydrocarbons present in fuel, and is less susceptible to electrostatic discharge.
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Kelley Ricki
Klinger Gary O.
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Watson Theodore J.
ITT Manufacturing Enterprises Inc.
Moy Joseph M.
Seitter Robert P.
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