Method for manufacturing a filler neck

Metal working – Method of mechanical manufacture – Fluidic or fluid actuated device making

Reexamination Certificate

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Details

C029S890142, C029S428000, C219S061200, C219S061400, C219S066000, C219S081000, C219S082000, C219S083000, C219S084000, C219S119000

Reexamination Certificate

active

06931729

ABSTRACT:
In response to the recent various requests, the present invention provides a method for manufacturing filler neck to facilitate jointing a mouthpiece and a feeding pipe which were manufactured separately into an integrated filler neck having an excellent hermeticity. The method for manufacturing a filler neck1comprises the following steps: jointing an inner face of the circumferential wall portion16of a feeding pipe and an outer face of the circumferential wall portion 12 of the mouthpiece, and integrating with the mouthpiece2and the feeding pipe3, wherein the outer of the mouthpiece and the inner face of the feeding pipe are in relation to be fitted in a press-fitted condition, a seam welding is executed to the welding area W provided in a range of the overlapped area S defined by the width of the circumferential wall portions.

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