Fall-out shelter

Claim 1

A SHELTER COMPRISING A RIGID SHELL BURIED IN THE GROUND, A CLOSABLE ENTRANCE HATCH TO SAID SHELL, AN ESCAPE HATCH IN A TOP PORTION OF SAID SHELL, AN EARTH BACKFILL COVERING ALL OF SAID SHELL EXCEPT SAID HATCHES, A LOOSE SAND BACKFILL COVERING SAID ESCAPE HATCH, A LADDER ON SAID SHELL EXTENDING UPWARD FROM SAID ESCAPE HATCH THROUGH SAID SAND BACKFILL SUBSTANTIALLY TO THE SURFACE OF THE GROUND, A FLOOR SPACED ABOVE THE BOTTOM OF THE SHELL, A DRY STORAGE SPACE UNDER THE CENTER OF SAID FLOOR, WATER TANKS UNDER SAID FLOOR ON OPPOSITE SIDES OF SAID STORAGE SPACE, SAID SHELL HAVING SIDE WALLS SUBJECT TO MOISTURE CONDENSATION EXTENDING BELOW SAID FLOOR AND FORMING OUTER WALLS FOR SAID TANKS, SAID FLOOR BEING SPACED FROM SAID WALLS SUFFICIENTLY TO ALLOW SAID MOISTURE CONDENSATION TO RUN INTO SAID TANKS.