Abstract: A deck drain for draining liquids from a floating roof of a liquid product storage tank includes a hollow drain tube extending downwardly from the deck of the floating roof at an upper open end thereof and a check valve assembly coupled to the upper open end of and having a cage extending upwardly from the upper open end of the drain tube. An elastomeric ball is slideably disposed within the cage and operative to seat within and close off the upper open end of the drain tube when in a lowermost position. The cage is comprised of a plurality of parallel, spaced-apart rods extending between an upper plate and a lower plate disposed on the deck and which is bolted through the deck to an opposite third plate which mounts the upper open end of the drain tube. The check valve assembly closes off the upper open end of the drain tube except when liquid is present on the deck.

Abstract: A floating roof for use in a storage tank for oil or other petrochemical products has a frame that includes a circular outer rim. The floating roof includes a plurality of pontoons which are coupled to the outer rim by opposing strap and saddle assemblies attached to opposite ends of each pontoon. The strap and saddle assemblies are coupled to the outer rim by rim mounting brackets.

Abstract: A floating roof for use in a storage tank for oil or other liquid petrochemical products has a frame comprised of girders. Adjustable legs for supporting the floating roof on the bottom of the storage tank are mounted on the girders, and are coupled to the junction of a main girder and a cross girder by a support housing assembly.

Abstract: A floating roof for use in a storage tank for liquid petrochemical products has a frame comprised of girders having grooved slots in top and opposite side surfaces thereof along substantially the entire lengths of the girders. The slots are capable of receiving threaded fasteners and flanges at any location along the length thereof, permitting cross girders to be bolted to main girders at virtually any location along the length of the main girder and deck sheeting to be bolted to the tops of the girders at virtually any location along the length of each girder, without the need to drill holes. Adjustable legs for supporting the floating roof on the bottom of the storage tank and which are internally sealed against vapor leakage, are mounted on the girders and are coupled to the junction of a main girder and a cross girder by a sealed support housing assembly. A manway assembly and bleeder vent assemblies are also coupled to girder junctions.

Abstract: A floating roof for use in a storage tank for liquid petrochemical products has a frame comprised of girders having grooved slots in top and opposite side surfaces thereof along substantially the entire lengths of the girders. The slots are capable of receiving threaded fasteners and flanges at any location along the length thereof, permitting cross girders to be bolted to main girders at virtually any location along the length of the main girder and deck sheeting to be bolted to the tops of the girders at virtually any location along the length of each girder, without the need to drill holes. Adjustable legs for supporting the floating roof on the bottom of the storage tank are mounted on the girders, and are coupled to the junction of a main girder and a cross girder by a support housing assembly. A manway assembly and bleeder vent assemblies are also coupled to girder junctions.

Abstract: A floating roof for use in a storage tank for oil or other liquid petrochemical products includes pontoons, each of which is coupled to the girders by mounting arrangements including a one-piece saddle having an intermediate arc shaped cradle portion for receiving the pontoon and an elongated strap extending around the pontoon and having opposite ends bolted to the girder through the opposite ends of the saddle either directly to the girder or to a mounting bracket attached to the girder. The pontoons are of hollow cylindrical configuration and include opposite end caps recessed inwardly from the ends of the pontoon and having continuous flanges at the outer peripheries thereof in contact with the inner surface of the pontoon at the outer ends thereof.

Abstract: A floating roof for use in a storage tank for oil or other liquid petrochemical products has a frame comprised of girders having grooved slots in top and opposite side surfaces thereof along substantially the entire lengths of the girders. The slots are capable of receiving threaded fasteners and flanges at any location along the length thereof, permitting cross girders to be bolted to main girders at virtually any location along the length of the main girder and deck sheeting to be bolted to the tops of the girders at virtually any location along the length of each girder, without the need to drill holes. Adjustable legs for supporting the floating roof on the bottom of the storage tank are mounted on the girders, and are coupled to the junction of a main girder and a cross girder by a support housing assembly. A manway assembly and bleeder vent assemblies are also coupled to girder junctions.