Ball and socket joints

Claim 1

A BALL AND SOCKET JOINT COMPRISING IN COMBINATION A HOLLOW HOUSING HAVING A BORE EXTENDING THERETHROUGH, SAID HOUSING HAVING AN INTURNED SEGMENTAL SPHERICAL WALL PORTION AT ONE END OF SAID BORE DEFINING A RESTRICTED OPENING, CLOSURE MEANS AT THE OTHER END OF SAID BORE, A FIRST BALL PART HAVING A SEGMENTAL SPHERICAL OUTER SURFACE, A FLAT END AND A BORE EXTENDING THERETHROUGH, SAID SEGMENTAL SPHERICAL OUTER SURFACE OF SAID FIRST BALL PART ENGAGING SAID SEGMENT SPHERICAL WALL PORTION OF SAID HOUSING, A JOINT STUD HAVING A SHAFT EXTENDING THROUGH SAID BORE OF SAID FIRST BALL PART, A SECOND SEGMENTAL SPHERICAL BALL PART AT THE END OF SAID JOINT STUD DISPOSED IN SAID HOUSING AND HAVING A FLAT SURFACE ENGAGING SAID FLAT END OF SAID FIRST BALL PART, SAID FIRST BALL PART HAVING AN EXTENSION INCLUDING A BORE SLIDABLY RECEIVING SAID STUD AND BEING SUBSTANTIALLY CONTIGUOUS WITH SAID BORE OF SAID FIRST BALL PART, SAID EXTENSION PROJECTING BEYOND SAID OPENING OUTWARDLY OF SAID HOUSING, SAID EXTENSION HAVING AN ANNULAR RECESS THEREIN ADJACENT SAID STUD. A FLEXIBLE SEALING MEANS HAVING ONE END SECURED TO SAID EXTENSION AND THE OTHER END SECURED TO THE OUTER EDGE OF SAID HOUSING ADJACENT SAID ONE END OF SAID BORE, AN O-RING SEALING MEANS BETWEEN SAID JOINT STUD AND SAID EXTENSION ON SAID FIRST BALL PART PERMITTING ROTARY MOTION OF SAID STUD AROUND ITS AXIS, SAID O-RING SEALING MEANS BEING LOCATED WITHIN SAID RECESS.