Tube joint for fuel tank

Details Tube joint for fuel tank Tube joint for fuel tank

2007-09-11

2007-09-11

Dunwoody, Aaron (Department: 3679)

Pipe joints or couplings

Materials

Nonmetallic

C285S141100, C285S288100

Reexamination Certificate

active

11049936

ABSTRACT:
A tube joint for a fuel tank includes a joint body having a tubular shape, and a barrier layer covering the inner surface of the joint body. The joint body is formed of a material which is weldable to a tank body, and the barrier layer is formed of a material which has fuel impermeability and a predetermined hardness. The barrier layer has an extension portion extending from a distal end of the joint body along an axial direction of the joint body. The extension portion includes a projecting portion which protrudes radially and outwardly of the extension portion at or adjacent to a proximal end of the extension portion such that a seal groove is formed between the projecting portion and the joint body, and a nail portion which protrudes radially and outwardly of the extension portion at or adjacent to a distal end of the extension portion.

REFERENCES:
patent: 6755206 (2004-06-01), Nishi et al.
patent: 7014214 (2006-03-01), Kaneko
patent: 2002/0121517 (2002-09-01), Aoki et al.
patent: 2005/0029809 (2005-02-01), Kaneko

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