Fuel tank comprising blown vessel and overmolded insert

Details Fuel tank comprising blown vessel and overmolded insert Fuel tank comprising blown vessel and overmolded insert

2005-01-18

2005-01-18

Nolan, Sandra M. (Department: 1772)

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

C156S156000, C264S138000, C264S516000

Reexamination Certificate

active

06844037

ABSTRACT:
A fuel tank includes a vessel having a wall, the wall includes at least a first layer forming a hydrocarbon barrier, and a second layer that is more permeable to hydrocarbons than the first layer and is located on an outside of the first layer. The fuel tank also includes an insert defining a passage between an inside of the vessel and an outside thereof. The insert includes a first end overmolded by the wall and a second end opposite to the first end projecting outside the vessel. The wall has a portion extending inside the insert around an opening of the wall, the insert being configured to form at least one region of reduced thickness in the second layer along a diffusion path for hydrocarbons diffusing along the second layer from an edge of the wall adjacent to the opening towards the outside of the vessel.

REFERENCES:
patent: 4323411 (1982-04-01), Uhlig
patent: 6391408 (2002-05-01), Hutchinson
patent: 6527892 (2003-03-01), Gombert et al.
patent: 42 05 332 (1993-08-01), None
patent: 4337491 (1995-05-01), None
patent: WO 9512484 (1995-05-01), None
patent: A 6-47801 (1994-02-01), None
patent: A 8-192457 (1996-07-01), None

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