Support device for a cupola or other plastic skylight

Claim 1

IN A DEVICE, THE COMBINATION OF A PREFABRICATED ANNULAR CLOSURE ELEMENT AND A CUPOLA WHICH COMPRISES, A ONE PIECE CAISSON RING HAVING AN OUTER SURFACE AND AN INNER SURFACE AND BEING FORMED OF A MATERIAL RESISTANT TO CONCRETE CAST AGAINST IT, SAID CAISSON RING HAVING A LOWER PORTION FOR ANCHORING SAID RING ABOUT AN OPENING OF A CONCRETE ROOF STRUCTURE AND AN UPPER ANNULAR PORTION FOR SUPPORTING A CUPOLA, THE OUTER SURFACE OF SAID RING HAVING ANCHORING MEANS TO EFFECT BONDING OF SAID RING TO CONCRETE CAST AGAINST IT, A FLANGED COLLAR EXTENDING EXTERNALLY FROM SAID UPPER PORTION OF THE RING, SAID FLANGED COLLAR HAVING AN UPPER SURFACE SERVING AS A WIND AND RAIN BREAKING GUTTER AND AS A SUPPORT FOR SAID CUPOLA, THE FLANGE OF SAID COLLAR HAVING AN UNDER SURFACE TO WHICH CUPOLA CONNECTING MEANS MAY BE COUPLED, A CUPOLA COVERING SAID CAISSON RING HAVING A LATERALLY EXTENDING MOUNTING FLANGE FOR RESTING AGAINST THE FLANGE OF THE COLLAR, A FLEXIBLE ANNULAR SEALING JOINT INTERPOSED BETWEEN THE FLANGE OF THE COLLAR AND THE FLANGE OF THE CUPOLA, AND CONNECTING MEANS COUPLING THE FLANGES TO EACH OTHER SO AS TO HOLD THE CUPOLA IN PLACE.