Poured double-walled structures

Claim 1

A STRUCTURE POURED IN SPACED RELATION TO A SUPPORTING SURFACE PROVIDING A SEPARATING AIR SPACE THEREBETWEEN, COMPRISING: (A) A NUMBER OF ABUTTING PANELS, EACH PANEL BING PROVIDED WITH A SERIES OF APERTURES CUT THERETHROUGH AND EACH APERTURE HAVING A SERIES OF NOTCHES FORMED IN THE PERIMETER THEREOF; (B) A NUMBER OF TUBULAR SPACER MEMBERS CORRESPONDING TO THE NUMBER OF APERTURES; (C) EACH SPACER MEMBER HAVING A SERIES OF TABS AT ONE OF ITS ENDS CORRESPONDING IN NUMBER TO THE SERIES OF NOTCHES IN ONE OF THE APERTURES, SAID TABS EACH BEING T-SHAPED AND ENGAGING ONE OF SAID NOTCHES AND OVERLAPPING THE OUTER SURFACE OF A PANEL CONNECTING EACH SPACER MEMBER TO A PANEL IN REGISTRY WITH NE OF THE PANEL APERTURES; (D) THE OTHER END OF EACH OF THE SPACER MEMBERS RESTING ON SAID SUPPORTING SURFACE, SAID SPACERS AND APERTURES DEFINING TUBULAR FORMS EXTENDING BETWEEN SAID SUPPORTING SURFACE AND THE OUTER SURFACE OF SAID PANELS; (E) AND POURED CONCRETE OVER SAID PANELS EXTENDING THROUGH SAID APERTURES AND SPACERS PROVIDING COLUMNS BETWEEN SAID SUPPORTING SURFACE AND THE OUTER SURFACE OF SAID PANELS.