Quick-connect fitting for oil well tubing

Claim 1

IN A QUICK-CONNECT FITTING FOR AN OIL WELL TUBING STRING, THE COMBINATION OF: (A) A TUBULAR HOUSING ADAPTED TO BE SLIPPED OVER THE UPPER END OF THE TUBING STRING; (B) LATCH MEANS COMPRISING CIRCUMFERENTIALLY SPACED LATCH ELEMENTS WITHIN SAID HOUSING AND PIVOTABLE INWARDLY AND OUTWARDLY RELATIVE THERETO BETWEEN INNER EXTENDED POSITIONS, WHEREIN THEY ARE ENGAGEABLE WITH THE TUBING STRING, AND OUTER RETRACTED POSITIONS, SAID LATCH ELEMENTS HAVING INNER CAM SURFACES ENGAGEABLE WITH THE UPPER END OF THE TUBING STRING TO PIVOT SAID LATCH ELEMENTS OUTWARDLY INTO THEIR RETRACTED POSITIONS AS SAID HOUSING IS SLIPPED OVER THE UPPER END OF THE TUBING STRING; (C) MOVABLE RETRACTING MEANS CARRIED BY SAID HOUSING AND ENGAGEABLE WITH SAID LATCH ELEMENTS FOR SIMULTANEOUSLY PIVOTING SAID LATCH ELEMENTS INTO THEIR RETRACTED POSITIONS TO CAUSE THEM TO DISENGAGE THE TUBING STRING WHEN IT IS DESIRED TO REMOVE SAID HOUSING FROM THE UPPER END OF THE TUBING STRING; (D) SAID LATCH ELEMENTS RESPECTIVELY HAVING ARMS EXTENDING OUTWARDLY THROUGH SAID HOUSING; AND (E) SAID RETRACTING MEANS INCLUDING A COLLAR EXTERNALLY OF AND SLIDABLE AXIALLY ALONG SAID HOUSING AND ENGAGEABLE WITH SAID ARMS.