Abstract: This invention provides a fluid fitting made up of telescoping sleeves providing an annular space therebetween adapted to receive the end of a tube. The outer sleeve is attached to the inner sleeve by being deflected around annular ridges at one end of the inner sleeve. The sleeves are attached to the tube by swaging the outer sleeve so as to grip the tube between the two sleeves. Grooves in the inner sleeve provide corners which dig into the inner surface of the tube and provide seals and retention, while recesses in the outer sleeve receive deflected material of the tube to prevent rotation.

Abstract: This invention provides a fluid fitting for joining two tubular members in a fluid-tight relationship, the fitting including a sleeve having outer end portions with ridge means on the inner surfaces thereof for retaining a tube upon being compressed inwardly around the tube, sealing areas inwardly of the retention areas, the sealing areas including sealing elements on the inner wall of the fitting for forming a fluid-tight engagement with a tubular member received within the fitting upon compression around the tubular member, intermediate areas separating the end portions and the sealing areas, and a central portion of increased wall thickness for providing a greater strength at that area.