Patent ID: 9016732
Filing Date: 2015-04-28
Classification: F16L,Y10T

Abstract:
1. A conduit fitting for a conduit having a central axis, comprising: a first coupling member comprising a female threaded body having a camming surface; a second coupling member comprising a male threaded nut having a drive surface, wherein the first coupling member and said second coupling member when joined together provide an internal space; a conduit gripping device comprising a front ferrule and a rear ferrule disposed in said internal space such that when the conduit fitting is pulled-up on an end portion of a conduit by relative axial translation between the first coupling member and the second coupling member said conduit gripping device will grip and seal the conduit; said front ferrule comprises a nose portion that engages said camming surface and said rear ferrule comprises a driven surface that engages said drive surface when the conduit fitting is pulled up, a deformable structure disposed in said internal space such that the deformable structure is positioned radially outward of the camming surface, wherein said deformable structure comes into abutment with at least one of the first and second coupling members upon said relative axial translation to said pulled-up position to provide an indication of completed pull-up wherein said indication of completed pull-up is a torque required to continue rotating the first coupling member with respect to the second coupling member after said abutment by said deformable structure.