Metal working – Method of mechanical manufacture – With testing or indicating
Reexamination Certificate
2011-06-21
2011-06-21
Hong, John C (Department: 3726)
Metal working
Method of mechanical manufacture
With testing or indicating
Reexamination Certificate
active
07963016
ABSTRACT:
A method of fabricating a circular-shaped metal structure includes the steps of (a) rotating a pipe around an axis thereof, the pipe being composed of a plastic-workable metal, (b) moving a jig towards the pipe in a direction perpendicular to the axis until the jig makes contact with an outer surface of the pipe, and compressing the jig onto the pipe, (c) moving the jig in a direction in parallel with the axis with the jig being compressed onto the pipe while the pipe is kept rotated, (d) measuring a thickness of a wall of the pipe during the step (c), and (e) adjusting a pressure with which the jig is compressed onto the pipe, in accordance with the thickness measured in the step (d).
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Hayes & Soloway P.C.
Hong John C
K.K. Endo Seisakusho
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