Swivel pipe coupling

Claim 1

A SWIVEL PIPE COUPLING COMPRISING A PIPE TERMINATING IN A SOCKET MEMBER HAVING SPHERICAL INTERNAL SEAT MEANS AND A SPHERICAL OUTER RETAINING FACE, A PIPE TERMINATING IN A BALL MEMBER HAVING A SPHERICAL EXTERNAL SEAT WITHIN SAID SOCKET MEMBER, A RADIAL FLANGE ADJACENT THE JUNCTION OF SAID PIPE AND SAID BALL MEMBER, A PLIABLE SEALING RING CONNECTED TO THE FREE END OF SAID SOCKET MEMBER AND HAVING A SEALING LIP IN SEALING ENGAGEMENT WITH THE EXTERNAL SEAT OF SAID BALL MEMBER, A COUPLING RING ASSEMBLY SURROUNDING SAID MEMBERS, SAID COUPLING RING ASSEMBLY COMPRISING A RELATIVELY SHORT BEARING RING HAVING BEARING MEANS FORMED WITH A SPHERICAL INNER FACE THAT ENGAGES SAID OUTER RETAINING FACE ON THE SOCKETE MEMBER, SAID BEARING RING BEING FORMED WITH AN ANNULAR, AXIALLY INNER SEAT THAT FACES RADIALLY OUTWARD, SAID COUPLING RING ASSEMBLY ALSO COMPRISING A RETAINER RING FITTING ON SAID BEARING RING SEAT, SAID RETAINER RING HAVING AN ANNULAR, AXIALLY INNER SPACER SEAT ADJACENT ITS PERIPHERY, THE RADIAL FLANGE ON SAID BALL MEMBER HAVING AN ANNULAR, AXIALLY INNER SPACER SEAT ALIGNED WITH SAID BEARING RING SPACER SEAT, AN ANNULAR SPACER EXTENDING BETWEEN SAID RETAINING RING AND THE RADIAL FLANGE ON SAID BALL MEMBER AND CENTERED BY SAID SPACER SEATS, SAID BEARING RING BEING