Patent ID: RE38786

Claim:
A tube coupling comprising a coupling body having a throughway open at one end of the body to receive a tube, a collet located in the throughway having an annular sleeve and at least one radially resilient finger extending axially from the sleeve toward said open end of the throughway, the coupling body having a stop face directed along the throughway axis away from said open end, the distal end of the finger having on its inner side a projection to engage a feature on the tube and on its outer side a first axially facing abutment directed towards the open end of the throughway to engage with the stop face and a further, radially facing abutment engageable with the coupling body when the first axially facing abutment engages the stop face to constrain the distal end of the finger against radial outward movement and thereby prevent release of the projection on the finger from the feature on the tube and prevent release of the tube from the coupling body wherein said resilient finger has a first portion extending radially outward of said sleeve, a second portion extending axially from a radially outer end of said first portion and a radial element disposed at a distal end of said second portion, said projection and said first axially facing abutment disposed on said radial element.