Ford Motor Company Limited

Mark R Henault

Daniel M Duhaime

Daniel J Kmiecik

Charles A Dunn

A permeation resistant closure for a mutlilayer fuel tank. A barrier layer within a closure plug aligns with the barrier layer of a fuel tank wall to form an integral and uninterrupted permeation resistant barrier surface.

Fuel tank closure

A fuel closure assembly is especially useful in multi-layer fuel tanks. An opening in a fuel tank wall having an externally threaded nipple forms a planar sealing surface. An seal is centered about a radial surface of the nipple. A plate closes the opening and is retained in position by a threaded ring.

Fuel tank closure assembly

A method of attaching a member to the interior of a blow-molded plastic fuel tank wall. The wall is molded from a pliable parison. An inwardly directed projection is formed integral with the wall. The projection has an inner surface and an outer surface. The outer surface forms a cavity receiving a core. The core is inserted within the cavity while the parison is partially pliable and fuzes to the wall. The projection is inserted through an aperture in the member and heated. The softened projection is squashed to secure the member to the wall.

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Dearborn, MI, United States of America

Mark R Henault