Freezeless water supply

Claim 1

A WATER SUPPLY SYSTEM FOR SUPPLYING WATER FROM A SOURCE TO A POINT OF USE INCLUDING (A) A RISER PIPE, (B) AN ELECTRIC HEAT TAPE PLACED IN CONTACT WITH SAID RISER PIPE SUBSTANTIALLY ALONG ITS ENTIRE LENGTH FOR HEATING SAID RISER PIPE TO PREVENT IT FROM FREEZING, (C) AN INSULATION LAYER COVERING SAID RISER PIPE AND SAID HEAT TAPE TO CAUSE SUBSTANTIALLY ALL THE HEAT PRODUCED BY SAID HEAT TAPE TO BE APPLIED TO SAID RISER PIPE, (D) A VAPOR BARRIER WRAPPER ENCASING SAID INSULATION LAYER TO PROTECT SAID INSULATION LAYER FROM MOISTURE CONDENSATION, (E) AN OUTER PIPE HAVING AN INSIDE DIAMETER GREATER THAN THE OUTSIDE DIAMETER OF SAID INSULATED RISER PIPE FOR ENCASING SAID RISER PIPE LEAVING A SPACE BETWEEN SAID OUTER PIPE AND SAID VAPOR BARRIER WRAPPER, (F) A PAIR OF END CAPS COOPERATING WITH SAID RISER PIPE AND SAID OUTER PIPE FOR ESTABLISHING AND MAINTAINING THE SPACED RELATIONSHIP OF SAID PIPES, (G) MEANS FOR CLAMPING SAID END CAPS TO SAID PIPES TO FORM A UNITARY ENCLOSED STRUCTURE, AND (H) MEANS FOR SEALING SAID END CAPS TO SAID PIPES TO PREVENT WATER FROM ENTERING SAID ENCLOSED STRUCTURE.