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| Number | Title | Issue Date |
| 7124769 | High rise tower sanitary service system A system and method for servicing restrooms on the upper floors of a high rise building. The system is comprised of sections of hoses that are interconnected by valves, each valve configured to provide a user with the ability to selectively shut off the flow of mate... | 10/24/2006 |
| 7025092 | Positive air pressure attenuation device for drainage systems The positive air pressure attenuation device (1) for use in drainage systems in buildings includes a housing (3), connected to the system, to which a flexible reservoir (10) is secured, the flexible reservoir (10) being operable on a posi... | 04/11/2006 |
| 7013912 | Apparatus and system for utility waste and venting An improved high rise building drainage system method and apparatus for conducting waste water from plumbing fixtures, such as lavatories and the like, through prefabricated, modular waste-vent stack units extending through intervals and stack boxes for such units o... | 03/21/2006 |
| 6886592 | Sewer relief valve with integral disinfectant means A sewer relief valve assembly comprises a cylindrical sleeve dimensioned for insertion into a clean out which has an interior surface formed as a conduit and exterior threads adapted for mated engagement with the interior threads of the clean out. A valve means is d... | 05/03/2005 |
| 6684415 | Ventilation apparatus There is provided a drain pipe ventilating apparatus that prevents water seal from being broken by supplying air to a drain pipe without using a ventilation pipe having a vent hole installed at a high position. The ventilating apparatus to supply the air to th... | 02/03/2004 |
| 6474365 | Overflow drain outlet cover system A system for covering drain pipe outlets, particularly, as they exit a building. The system includes a band that is tightened around the exterior of a pipe as it protrudes through the side of a building. Attached to the band is a hinged cover which is siz... | 11/05/2002 |
| 6431972 | Multiple plumbing vent apparatus An apparatus for venting several plumbing pipes through existing roof openings made for existing ventilation systems, including turbine ventilators, roof ventilators, ridge ventilators and hip ventilators. The plumbing vent apparatus has two sides, a bott... | 08/13/2002 |
| 6092549 | Device in a waste disposal system in a building The drain system in a building is divided in at least two parts, namely a first part (2) arranged to receive drain water contaminated to a relatively high degree from one or a plurality of first units (3), and a second part (10) arranged to receive drain ... | 07/25/2000 |
| 5645099 | Sewer relief valve A sewer relief valve (40) made out of a durable plastic material comprises: a raised head or float housing (52) that serves as a gripping means during it's removal and installation; said housing (52) has male threads (53) which circumference the lower ver... | 07/08/1997 |
| 5415438 | Drainage vertical tube joint A drainage vertical tube joint comprising an inner tube (20) provided in hanging-down state at lower side of an upper vertical tube connection port (11), a reduction guide (21) provided in downward inclination on an inner circumferential wall of the inner... | 05/16/1995 |
| 5209257 | Sewer relief valve A vent for relieving pressure in a sewage collection system for buildings characterized by a buoyant float-closure which will easily open in response to fluid pressure to permit escape of gas or liquid from the system upon the build-up in the system of mi... | 05/11/1993 |
| 5048562 | One way air admittance valve A one way air admittance valve (2) for admitting air into a pipe (3), which valve (2) comprises a body portion (4) for fitting to the pipe (3), at least one air inlet port (6) in the body portion (4), and rigid sealing means (16) which is longitudinally m... | 09/17/1991 |
| 5031659 | Sewer line relief valve A backwater escape valve comprises a threaded shank received in the threaded opening of a clean out. A pivotally mounted valve body provides a frustoconical valve element and is biased by a spring or by gravity into a closed position against a mirror imag... | 07/16/1991 |
| 5029606 | Wall-mounted hook-up assemblies for washing machine and lavatory An in-the-wall base unit is provided for connection of building water supply and drain lines to it. A surface-mounted adaptor unit is fastened to the front of the base unit, extends outside the wall for connection of the supply and drain lines in the one ... | 07/09/1991 |
| 5010600 | Toilet odor removal system A system for exhausting noxious vapors from a bathroom and exhausting the same through a ceiling or wall mounted exhaust fan. The system can utilize an existing exhaust fan in the ceiling or wall of the bathroom as found in older buildings or an exhaust f... | 04/30/1991 |
| 4998754 | Drainpipe joint In a vent-free single-duct drainage piping system for vertical installation in multi-storied buildings with horizontally extending branches to receive drain from sources of different floors of the building installed, a joint for connecting vertical pipe s... | 03/12/1991 |
| 4991623 | Automatic air valves for ducts An automatic air valve for a conduit, through which passes fluids and/or solids, which valve prevents the discharge of contaminated air therefrom into the environment and which further permits the introduction of fresh air from the environment into the co... | 02/12/1991 |
| 4974632 | Automatic air valves for ducts An automatic air valve for a conduit, through which passes fluids and/or solids, which valve utilizes a freely-movable valve member to prevent the discharge of contaminated air therefrom into the environment and to permit the introduction of fresh air fro... | 12/04/1990 |
| 4962548 | Valve assembly A plumbing arrangement is described for a toilet pan connected to a waste disposal pipe. The waste pipe has an extension extending a short height above the flood level of the water trap. The upper end of the extension is closed off by a two way differenti... | 10/16/1990 |
| 4933995 | Flush-operated bathroom fan A flush-operated bathroom fan is provided which utilizes a float-operated actuator in the water closet tank of the toilet which actuates a switch, turning on the ceiling fan, when the water level in the water closet tank falls indicating that the toilet h... | 06/19/1990 |
| 4919164 | Method of installing piping, ducts and conduits in a prefabricated framed wall for a building structure and partition made thereby A method of making a partition for a prefabricated framed wall to be mounted into a building structure under construction has several steps: cutting at least one hole through each of a plurality of frame studs, a top frame plate, and a bottom frame plate;... | 04/24/1990 |
| 4917147 | Backwater escape valve A backwater escape valve for plumbing systems comprising a cylindrical body adapted to be coupled to a drainpipe system at the opening normally occupied by a sealing plug, and having a vertically disposed outflow opening covered with a hinged, spring-load... | 04/17/1990 |
| 4867802 | Air admittance valve for use in drainage systems An air admittance valve for use in drainage systems comprising a housing with an opening therein through which air passes into the drainage system, and a pivoted closure member adapted to close the opening and openable on a pressure difference between the... | 09/19/1989 |
| 4860503 | Plumbing apparatus A waste water plumbing apparatus connecting waste water depositing receptacles between the different stories of a building. The waste water plumbing apparatus comprises principally a vent pipe and a waste pipe. Connected to the vent pipe is a waste deposi... | 08/29/1989 |
| 4850059 | Apparatus for preventing backing up of sewage in a building A waste sewage system for a building constructed to prevent sewage from backing up within the building. A valve is connected to an end of a clean-out conduit line of a waste sewage system for normally closing the same and openable in response to sewage ef... | 07/25/1989 |
| 4839927 | Drainage system in multi-story building A drainage system installed in a building for conducting waste water from such sanitary fixtures as toilet bowls into the underground sewer, has a stack extending through the floor of each story of the building and branch pipes for conducting the waste wa... | 06/20/1989 |
| 4811753 | Recreational vehicle drain vent A drain vent apparatus for recreational vehicles may be coupled to the drain vent of a drain line of a vehicle and includes a coupling for a drain hose for the output of the drain vent. The drain vent has an outer housing and an inner pipe located in said... | 03/14/1989 |
| 4581780 | Precast concrete toilet with vent An outdoor toilet constructed of precast concrete having integral color incorporated therein with the external surfaces being simulative of wood or the like and provided with a vault with a vent stack extending upwardly along one wall of the toilet and co... | 04/15/1986 |
| 4551865 | Ventilator for a lavatory pan A ventilator for withdrawing foul air from a lavatory pan has, within a housing (16), a duct (11) for connection between the discharge pipe (31) of the lavatory flushing assembly and the flush pipe (33) of the lavatory pan. An extractor fan (41) is provid... | 11/12/1985 |
| 4494255 | Ventilated toilet device This invention includes in combination, a flush-type toilet and an odor-removing device comprising a toilet stool having front and rear portions with the front portion being the bowl and the rear portion including a water passage in communication with the... | 01/22/1985 |
| 4493117 | Continuously deodorized toilet A deodorizer for a toilet employing a compact motor housing for drawing odor laden gases from the interior of a toilet when in use and venting those gases. The motor housing is a compact device which includes a one-way valve and a motor-driven fan. In one... | 01/15/1985 |
| 4480656 | Plumbing fixture This invention is directed to a plumbing fixture to lessen and to prevent the flow of a liquid, from a source of liquid, flowing to an apparatus such as a washing machine or a dishwasher. More, particularly, this plumbing fixture is directed to lessening ... | 11/06/1984 |
| 4475571 | Sewer relief valve An improved sewer relief valve which is vandal-proof and automatically opens responsive to a back flow of sewage and drain water within a plumbing system.... | 10/09/1984 |
| 4449741 | Waste plumbing installation and fittings therefor A plumbing network section for multi-storied construction is disclosed which uses an integral waste stack segment and waste receiving manifold for receiving waste from plumbing fixtures, and with multiple vents in the waste receiving manifold arranged for... | 05/22/1984 |
| 4372087 | Modular building structures A modular building structure is disclosed herein and comprises a support structure (10) including a plurality of spaced vertical columns (11), horizontal beams (12) interconnected between columns to form a rigid support system, and at least one space modu... | 02/08/1983 |
| 4323270 | Pipe fitting device for plumbing systems This invention relates generally to fittings used in plumbing systems, and more particularly relates to a new and improved construction for a fitting device of the type for use intermediate of and connecting water closets, sinks, baths, basins or the like... | 04/06/1982 |
| 4261386 | Sewer relief valve A sewer relief valve for placement in an existing sewer line connecting a residence or other facility generating sewage and the sewage collection system, the valve comprising connection means adapted to connect into a sewer line, an adapter means in turn ... | 04/14/1981 |
| 4246664 | Plumbing system and plumbing fittings for use therein Plumbing systems for routing wastes from a plurality of plumbing fixtures to a sewer, and for venting gases from the plumbing fixtures to the atmosphere. Also, plumbing fittings for use in such plumbing systems.... | 01/27/1981 |
| 4191407 | Pipe coupling for plumbing apparatus A plumbing connector and a method for installing or replacing pipe which extends between a toilet and a ferrule utilize a pair of sleeves arranged coaxially so as to form an annular socket for receiving one end of the ferrule. The inner sleeve is adapted ... | 03/04/1980 |
| 4162546 | Branch tail piece A branch tail piece for connecting the waste water outlet of an automatic dishwasher or the like to a sink drain system. The tail piece includes an inclined branch member and a curved baffle positioned within the tail piece for preventing waste water from... | 07/31/1979 |
