Misalignment coupling

Claim 1

A MISALIGNMENT COUPLING FOR CONNECTING A DRIVING AND A DRIVEN SHAFT FOR TRANSMISSION OF TORQUE AND THRUST FROM THE DRIVING SHAFT TO THE DRIVEN SHAFT, SAID COUPLING COMPRISING A HUB CONNECTED TO EACH OF SAID SHAFT, EACH OF SAID HUBS HAVING A SERIES OF TEETH PROJECTING RADIALLY OUTWARDLY, SAID TEETH HAVING SPHERICALLY-CONTOURED CROWN PORTIONS AND SPHERICALLY-CONTOURED FLANKS TO ACCOMMODATE ROCKING MOVEMENT OF THE COUPLING, EACH HUB HAVING A SHPERICAL SURFACE ON AT LEAST A PORTION BETWEEN THE TEETH AND THE SHAFT, EACH OF SAID HUBS ALSO HAVING A SPHERICAL PROJECTION EXTENDING BEYOND THE TEETH TOWARD THE OTHER HUB, THE CENTER OF CURVATURE OF SAID PROJECTION BEING THE SAME AS THE CENTERS OF CURVATURE OF SAID SPHERICAL PORTION OF SAID HUB AND SAID CROWN PORTIONS OF SAID TEETH, AN OUTER COUPLING MEMBER SURROUNDING SAID HUBS AND INCLUDING A SLEEVE HAVING INTERNAL TEETH IN MESH WITH THE TEETH OF SAID HUBS, SAID INTERNAL TEETH HAVING STRAIGHT CROWNS AND FLANKS, A THRUST PAD AT EACH END OF SAID SLEEVE, EACH HAVING AN INWARDLY DIRECTED SPHERICAL SURFACE MATING WITH THE SPHERICAL SURFACE OF THE CORRESPONDING HUB TWO PLASTIC THRUST PADS BETWEEN SAID SPHERICAL PROJECTION OF SAID HUBS, SAID PADS BEING FREE TO ROTATE RELATIN TO SAID SLEEVE AND TO MOVE AXIALLY RELATIVE TO SAID SLEEVE, SAID PADS HAVING SPHERICAL RECESSES MATING WITH SAID SPHERICAL PROJECTINGS OF SAID HUBS, AND A PAIR OF OPPOED BELLEVILLE SPRING CENTRALLY LOCATED BETWEEN SAID PADSE AND UNDER COMPRESSION IN CONTACT WITH SAID PADS.