Abstract: The present invention relates to a waste water outlet sanitary plant comprising a siphon forming a water seal to which is connected a waste pipe for connection with sewers and in which an automatic air valve device and a siphon are combined in one single apparatus so that their functions are complementary. A cylindrical body having a permanent water seal and in which a pipe or equivalent connected to an apparatus such as a sink, a basin, or waste outlet is dipping, is combined with an automatic air valve with peripheral air entry. An embodiment of the invention relates to a plant for dwellings in which a series of water outlets are provided at the height of different floors or sub-basements.

Abstract: 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.

Abstract: A drain control device adapted to be installed in a floor drain or the like and includes a device which prevents the backflow of water or other flowable material up through the floor drain. An expandable annular member is sealingly engaged with a floor drainpipe and includes a depending generally conical body divided into a plurality of circumferentially spaced and longitudinally extending segments capable of extension and contraction to enable flow in one direction and prevent backflow. A funnel-shaped device is inserted into the upper end of the drain control for guiding material downwardly into the drain control and preventing such material from becoming lodged on the upper end of the annular, peripherally expandable resilient body.

Abstract: Water leakage and seepage through foundation walls into basements, cellars and the like, is collected in a trough-like duct positioned on the inner face of the foundation near the bottom thereof and drained into a sump. In one form of the invention, the trough-like duct is positioned between the concrete flooring and the foundation of the basement or cellar and drains into conventional drainage tiles underneath the flooring. In another embodiment, the trough-like duct is secured on top of the concrete flooring against the inner face of the foundation wall and is drained directly into a sump or drainage conduit for the basement floor. Interior wall paneling for the basement can extend into the open top of the duct. In another embodiment, existing basement flooring can be routed adjacent the foundation wall forming a channel to receive the trough-like duct of this invention.

Abstract: A system and method for protecting a building against flooding caused by the overflow of a liquid from a liquid drain line into the building to which the drain line is connected. A floor drain, connected to a drain line, is connected in a watertight manner to a vessel having a hollow interior which rises a preselected distance above the floor drain to permit a liquid overflowing the floor drain to rise in the vessel. The vessel is vented to atmosphere a preselected distance above the floor drain to permit liquid in the hollow interior to recede through the floor drain as the overflow subsides. The vessel may contain a drain hole therein near the floor which can be selectively opened or closed to permit a liquid on the floor to be drained through the floor drain. The vessel employed may be a conventional ceiling supporting column.

Abstract: Flow diversion means are provided particularly for selectively discharging fluids emanating from different sources. The flow diversion means may be installed, in one application, in an uncovered wash down area, used for example for cleaning vehicles or the like. Flow diversion means are provided for a sump or the like, adapted to collect run-off liquid from a surface, said flow diversion means including first and second outlet means and an outlet valve assembly co-operating operatively therewith and operable to place either said first or said second outlet means in liquid communication with said sump, and control means for selectively operating said outlet valve assembly.

Abstract: This disclosure relates to a closure device for a roof drain comprising a generally inverted cup-shaped cap having an apex portion and a peripheral skirt terminating in a peripheral edge carrying peripheral sealing means for engaging an area outboard of a roof drain, and a threaded rod passing through the apex portion for rotationally connecting the closure device to a roof drain closure whereby upon rotation of the threaded rod the peripheral sealing means will be brought into contact with a peripheral area outboard of a roof drain to form a seal for retaining a predetermined quantity of water upon a roof for fire prevention purposes.

Abstract: A plurality of elongated drainage members connected in end to end fashion. The drainage members are located about the periphery of a basement floor, upon the floor and adjacent the basement walls. Each drainage member has a base and a wall connected to the base and spaced apart from the basement wall. A sealant member connects the bases to the basement floor. A drain channel is attached to one drainage member, whereby water collected by the drainage members is directed to an area drain in the basement. A flush assembly is attached to a drainage member half-way about the periphery of the basement floor from the drain channel.