Patent ID: 8318277

Claim:
A plastic fuel tank including a tank assembly and a filler neck, comprising: an ethylene/vinyl alcohol layer for preventing fuel seepage; an outermost polyethylene layer laminated onto one surface of the ethylene/vinyl alcohol layer; an innermost polyethylene layer laminated onto another surface of the ethylene/vinyl alcohol layer; and a colorless recycled polyethylene layer interposed between the ethylene/vinyl alcohol layer and the outermost polyethylene layer, wherein the outermost polyethylene layer is a high-density polyethylene layer colored so as to minimize transmission of ultraviolet light, wherein the tank assembly includes a small depression which protrudes towards the interior side of the fuel tank and engages with a portion of the filler neck, and wherein the small depression is formed such that a portion of the small depression is visible when looking inside the fuel tank through the filler neck.