Ball joint assembly

Claim 1

A BALL AND SOCKET JOINT ASSEMBLY COMPRISING A FIRST METALLIC MEMBER HAVING A PORTION OF ITS OUTER SURFACE GENERALLY SPHERICAL; A HIGH DENSITY, SYNTHETIC RESIN SOCKET MEMBER HAVING A FRUSTO-SPHERICAL SURFACE MATING WITH THE GENERALLY SPHERICAL SURFACE OF SAID METALLIC MEMBER; A FRUSTO-SPHERICAL WASHER OF HIGH DENSITY, SYNTHETIC RESIN CONSTRUCTION AND COMPLEMENTARY IN CONFIGURATION TO THE FRUSTO-SPHERICAL SURFACE OF SAID SOCKET MEMBER; A FRUSTOSPHERICAL METALLIC LINER INTERPOSED BETWEEN, AND BEARING AGAINST, SAID WASHER AND SAID SOCKET MEMBER FOR REINFORCING SAID WASHER AND FOR EVENLY TRANSMITTING FORCE FROM SAID WASHER TO SAID SOCKET MEMBER; A THRUST WASHER CONSTRUCTED OF A DIFFERENT HIGH DENSITY, SYNTHETIC RESIN THAN SAID FRUSTO-SPHERICAL WASHER MATING WITH SAID FRUSTOSPHERICAL WASHER FOR TRANSMITTING THRUST TO SAID FRUSTOSPHERICAL WASHER AND FORMING A BEARING WITH SAID FRUSTOSPHERICAL WASHER; A SECOND METALLIC MEMBER; A STUD RIGIDLY CONNECTED TO SAID SECOND MEMBER AND PIVOTALLY CONNECTED TO SAID FIRST METALLIC MEMBER AND EXTENDING THROUGH SAID RESIN SOCKET MEMBER, SAID FIRST-MENTIONED RESIN WASHER, SAID METALLIC LINER AND SAID THRUST WASHER; AND RESILIENT MEANS INTERPOSED BETWEEN SAID SECOND METALLIC MEMBER AND SAID THRUST WASHER FOR BIASING SAID THRUST WASHER TOWARD SAID FRUSTO-SPHERICAL RESIN WASHER AND AWAY FROM SAID SECOND METALLIC MEMBER.