Patent ID: 6098668
Filing Date: 2000-08-08
Classification: B60K,F16L

Abstract:
An assembly comprising a length of drawn seamless metal tube and an annular fitting comprising a hole through which the tube passes, the tube comprising consecutive first, second, and third segments that are of substantially identical wall thickness throughout, the first and third segments comprising transverse cross sections that allow the fitting to travel along the respective lengths thereof, and the second segment comprising a transverse cross section that disallows travel of the fitting from one of the first and third segments, along the second segment, to the other of the first and third segments, in which the first and third segments comprise substantially identical circular transverse cross sections, and the second segment comprises an intermediate segment having a non-circular transverse cross section, a first transition segment progressively transitioning the intermediate segment to the first segment, and a second transition segment progressively transitioning the intermediate segment to the third segment.