Patent ID: 6840550
Filing Date: 2005-01-11
Classification: F16L

Abstract:
1. A pipe joint for joining a tubular component to a receiving piece, the pipe joint comprising a fitting body having a recess for receiving the tubular component, a tightening nut having a first thread and a second thread, the fitting body having a first thread corresponding to the first thread of the tightening nut, and a cutting ring between the tightening nut and the fitting body, the cutting ring being arranged to be pressed between a wedge-like wall portion of the recess, and the tubular component when the tightening nut is tightened, and a supplementary nut having a thread whose handedness and pitch corresponds to the second thread of the tightening nut and whose handedness corresponds to that of the first thread of the tightening nut, and wherein the pitch of the thread of the supplementary nut is smaller than the pitch of the first thread of the tightening nut, and the tightening nut is designed not to contact the cutting ring when tightening it.