Patent ID: 6299218
Filing Date: 2001-10-09
Classification: F16L,H01L

Abstract:
A pipe union structure for a fluid channel of a semiconductor apparatus, said structure comprising:a first pipe having an outlet with an inner diameter;a second pipe having an inlet with an inner diameter and an outer diameter, said inlet flexibly, coaxially coupled to said outlet of said first pipe so that said second pipe can be displaced by an angle (.theta.) relative to said first pipe;a seal disposed between said outlet of said first pipe and said inlet of said second pipe;an inner pipe having an inlet and an outlet, said outlet of said inner pipe having an outer diameter smaller than each of the inner diameters of said outlet of said first pipe and said inlet of said second pipe, said inlet of said inner pipe connected to said outlet of said first pipe, said inner pipe extended into said inlet of said second pipe a longitudinal distance;said longitudinal distance being less than a transverse distance between said second pipe and said outlet of said inner pipe divided by a tangent value of the angle (.theta.).