Deep well motor drill

Claim 1

IN A DEEP-WELL ROTARY MOTOR DRILL COMBINATION: A LENGTH OF DRILL PIPE ADAPTED TO BE ATTACHED AT ITS UPPER END TO A DRILL PIPE STRING; A DRILL SHAFT HAVING AT ITS LOWER END BIT-MOUNTING MEANS AND MOUNTED IN THE LOWER END PORTION OF SAID PIPE LENGTH TO ROTATE; A FLUID MOTOR HAVING AN ELONGATED OUTER HOUSING IN THE UPPER PORTION OF SAID PIPE LENGTH ABOVE SAID DRILL SHAFT OPERABLE BY DRILLING MUD; SPACING MEANS BETWEEN SAID HOUSING AND SAID PIPE LENGTH FIXEDLY MOUNTING SAID HOUSING IN SAID PIPE LENGTH AND PROVIDING ANNULAR FLUID PASSAGES WITHIN SAID PIPE LENGTH ABOVE AND BELOW SUCH SPACING MEANS; A DRIVEN ROTOR SHAFT CONCENTRICALLY MOUNTED IN SAID FLUID-MOTOR HOUSING AND PROVIDING A ROTOR BODY ROTATING IN SAID HOUSING TO DRIVE SAID DRILL SHAFT; BEARING MEANS ROTATABLY MOUNTING THE UPPER END OF SAID ROTOR SHAFT AT THE UPPER END OF SAID MOTOR HOUSING; MEANS PROVIDING INLET PORTS IN SAID HOUSING ABOVE SAID SPACING MEANS FOR ENTRANCE OF DRILLING MUD TO DRIVE SAID ROTOR BODY AND ITS SHAFT, AND OUTLET PORTS BELOW SAID SPACING MEANS LEADING INTO THE ANNULAR PASSAGE BELOW SAID SPACING MEANS FOR DISCHARGE OF DRILLING MUD; A THRUST BEARING ASSEMBLY DISPOSED BETWEEN SAID DRILL SHAFT AND SAID PIPE LENGTH BELOW SAID ROTOR SHAFT AND ITS BEARING MEANS AND TRANSFERRING THE LOAD OF SAID PIPE LENGTH AND DRILL STRING TO SAID DRILL SHAFT AND LONGITUDINALLY YIELDABLE; COUPLING MEANS BETWEEN SAID DRIVEN ROTOR SHAFT AND SAID DRILL SHAFT ABOVE SAID THRUST BEARING ASSEMBLY FOR EFFECTING ROTARY DRIVE OF SAID DRILL SHAFT FROM SAID ROTOR SHAFT.