Pitless well adapter assembly

Claim 1

A PITLESS WELL ADAPTER FOR USE IN A WELL SYSTEM INCLUDING A VERTICAL WELL CASING HAVING AN INTERIOR SURFACE, AN EXTERIOR SURFACE AND A HORIZONTAL DISCHARGE OPENING, SAID ADAPTER ASSEMBLY COMPRISING, IN COMBINATION, A CAP MOUNTABLE ON THE UPPER END OF SUCH CASING, SUPPORT MEANS DEPENDING FROM SAID CAP, A COUPLER BODY SECURED TO SAID SUPPORT MEANS, HORIZONTAL GUIDE MEANS ON SAID COUPLER BODY, A VERTICAL DRAW ROD ASSEMBLY HAVING AN UPPERMOST END SUPPORTED BY SAID CAP AND A LOWERMOST END SECURED TO A VERTICAL EXPANDING BLOCK, A HORIZONTAL EXPANDING BLOCK SUPPORTED BY SAID GUIDE MEANS, SAID VERTICAL EXPANDING BLOCK ENGAGING SAID HORIZONTAL EXPANDING BLOCK, AND BEING EFFECTIVE UPON VERTICAL MOVEMENT OF SAID VERTICAL EXPANDING BLOCK TO MOVE SAID HORIZONTAL EXPANDING BLOCK LATERALLY IN SAID GUIDE MEANS FOR ENGAGING RELATIONSHIP WITH THE INTERIOR WALL OF SUCH CASING, SAID COUPLER BODY HAVING A CONDUIT ENGAGING BORE IN ITS LOWER PORTION AND A DISCHARGE PORT POSITIONABLE ADJACENT THE HORIZONTAL DISCHARGE OPENING IN SUCH CASING AND DEFINING A FLUID PASSAGEWAY BETWEEN SUCH BORE AND SUCH PORT.