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A drain cover assembly 10 for venting a drain 14 located below grade to the ground level is disclosed. The assembly includes a hollow frustro-conical drain cover 12 which opens downward to cover the top of a floor drain 14. The lower annular end surface 64 of the drain cover 12 is provided with a ru

A drain cover assembly 10 for venting a drain 14 located below grade to the ground level is disclosed. The assembly includes a hollow frustro-conical drain cover 12 which opens downward to cover the top of a floor drain 14. The lower annular end surface 64 of the drain cover 12 is provided with a rubber seal to engage the top of the drain 14. The drain cover is held in place by a jack screw which extends between a recess 46 in the top of the drain cover and the structure above, typically the ceiling of a basement. A flexible conduit is connected with the drain cover and extends upward through a window 20 or other opening to the ground level. When water from a sewer system backs up through the drain 14, hydrostatic pressure forces the water through the flexible conduit 18 to a location remote from the building in which the drain is located.

대표청구항 ▼

A drain cover assembly for use in venting a below grade floor drain under a building structure, said assembly comprising a hollow drain cap having a bottom rim dimensioned to cover the drain, resilient seal means for disposition between said rim and the floor surrounding the drain, a nipple extendin

A drain cover assembly for use in venting a below grade floor drain under a building structure, said assembly comprising a hollow drain cap having a bottom rim dimensioned to cover the drain, resilient seal means for disposition between said rim and the floor surrounding the drain, a nipple extending from said cap and communicating with the hollow interior of said cap, flexible conduit means coupled to said nipple for conducting water from the hollow interior of said cap to a remote location, a jack screw having a threaded arm telescopically movable in a tubular shaft, a nut coacting between the one end of the shaft and the threaded arm for telescopically moving the arm relative to the tubular shaft, and a load distributing plate at the free end of the shaft for engagement with the overlying building structure, the free end of the threaded arm being disposed in abutting engagement with the top of said cap.