| 主权项 |
1. A push-to-connect joint assembly, comprising:
a fitting having an interior axis, an interior wall and an exterior wall, wherein the interior wall defines a cavity extending axially through the fitting, a sealing ring compartment, a fastening ring wall support portion and a tube support member compartment, wherein the fastening ring wall support portion extends radially outwardly from a teeth-engaging portion to an axially extending step portion, wherein the step portion comprises an axially extending surface having an inconsistent radial distance from the interior axis, wherein the step portion includes a fastening ring common outer edge engaging surface and at least one fastening ring ear retaining slot, wherein the ear retaining slot extends a further radial distance from the interior axis than the common outer edge engaging surface; a first sealing ring positioned within the sealing ring compartment; and a fastening ring having a base portion and teeth, wherein the base portion is positioned at least partially within the tube support member compartment and has a radially outer edge in contact with the fitting interior wall, wherein the radially outer edge includes a common outer edge portion having a first radius, and at least one prolated ear member having a second radius that is larger than the first radius, wherein the common outer edge portion is in mating engagement with the common outer edge engaging surface of the step portion, and further wherein the at least one prolated ear member is in mating engagement with the at least one ear retaining slot of the step portion. |
