Abstract: A tub waste overflow assembly is provided that is attachable to a tub wall by means of a threaded retaining body insertable through an overflow drain aperture in a tub wall to engage a cooperatively threaded pipe fitting on the opposite side of the tub wall. A chamfered washer is provided to cooperate with the retaining body and an annular sealing gasket to produce a fluid-tight seal on the interior surface of the tub wall and provide frictional engagement with a cover member spanning the drain aperture.

Abstract: A shower drain replacement device for replacing existing shower drains in most shower stalls. The device includes a drain sleeve for inserting into a drain hole of a fixture, and having an open upper end and an open lower end and a peripheral side wall. A peripheral flange extends outwardly from the upper end for resting on a portion of the fixture adjacent to the drain hole. A plurality of mounting assemblies are provided for securing the drain sleeve in the drain hole of the fixture. Each of the mounting assemblies comprises an aperture in the flange of the drain sleeve, a support sleeve mounted on the drain sleeve, a rod extending through the aperture and through the support sleeve, and a mounting member rotatably mounted on the rod. The mounting member is rotatable between a retracted position and an extended position.

Abstract: A drainpipe filter kit for installation on a sink drain, the kit having the parts necessary to install a substitute drain pipe with a filter canister between the sink drain and the sink trap, the kit including a drainpipe segment with end fittings for connection to a sink drain and trap, and a removable canister connected to the pipe segment having a drain spigot and a disposable filter packet. The filter packet includes a dissolvable sanitation tablet, the canister being easily removed after draining for disposal and replacement of the filter packet.

Abstract: Improvements in retention of the oily liquid sealant in a oil-sealed odor trap, for drain applications such as a waterless urinal or anti-evaporation floor drain, are accomplished by making the liquid flow path substantially horizontal as a departure from conventional practice of substantially vertical flow. The trap is structured to realize the substantially horizontal liquid flow path and to locate the flow path immediately beneath the sealant layer or beneath a baffle portion that is sloped such that stray sealant droplets migrating upwardly to the upper surface of the flow path due to their buoyancy will be recaptured and returned to the main sealant layer. To accomplish substantially horizontal flow, the entry compartment can be made to have entry and exit openings substantially offset from each other.

Abstract: A solid-sediment retainment plumbing trap devised primarily for a sink from which substantial amounts of solid material are discharged; e.g., eyeglass manufacture and dental plastic grinders. The plumbing trap is connected to the sink, and collects sediment in a bottle having a fill line. When sediment collecting in the bottle reaches the fill line, the bottle is exchanged for a similar bottle, and the plumbing trap is once again in service. Because the bottle is connected to the rest of the trap by threads, bottle exchange is rapid and easy.

Abstract: A drain system is presented for conveying a liquid (e.g., water) exiting an end of a drain line. The drain line may be, for example, mechanically coupled to a drum of a washing machine, and may undergo limited movement during operation of the washing machine. The drain system includes a conduit and a splash plate, and provides mechanical isolation between the moveable drain line and the fixed conduit. The splash plate allows limited relative movement between the drain line and the conduit while providing a substantially splash proof connection between the drain line and the conduit. The drain system is suitable for use within a semiconductor fabrication clean room. The conduit has an axis substantially aligned with an axis of the drain line, and has an end with an opening larger than an outer dimension of the drain line. A lip surrounds the opening in the end of the conduit.

Abstract: A sink station system and method for accumulating and holding fluids and solid sediments. The sink station system incorporates a drain pipe serving to draw fluid out of a dental sink. The fluid flows down the drain pipe and into a fluid trap. As the sink is used, fluid accumulates in the fluid trap. As fluid accumulates in the trap beyond a predetermined level, the fluid rises upward through a water level pipe into a water level chamber wherein a float sensor is disposed. As the water rises to a predetermined level within the water level chamber, the float sensor is activated. Upon activation of the float sensor, a discharge pump is activated and accumulated fluid is pumped out of the system through a discharge pipe. The water level chamber and drain pipe fluidly communicate by means of an air vent that allows air accumulating above the fluid rising in the water level chamber out of the system to atmosphere through the drain pipe and sink.

Abstract: A two flush modality toilet composed of a bowl, a tank connected with the bowl wherein the tank is connected to a water supply, a conventional flush modality for flushing solid waste from the bowl, and a urinal flush modality for flushing liquid only waste from the bowl, wherein the urinal flush modality includes: a bowl valve in the form of a pop-up stopper, pop-up seat and pivot ball assembly at the low point of the bowl; a bowl valve control for selecting between open and closed states of the bowl valve, a passageway for directing liquid waste from the bowl into the sanitary drain; and an auxiliary flush control for supplying a limited quantity of flush water from the tank into the bowl to provide restoration of the trap water in the bowl after a urinal flush modality liquid drainage of the bowl has occurred. A foot pedal selectively operates the bowl valve, wherein when in an open state all the liquid in the bowl is drained. Upon release of the foot pedal, the bowl valve is returned to the closed state.

Abstract: A collection apparatus for the collection and disposal of effluent from multiple sinks is provided that effectively maintains air gap and sanitation requirements within a minimal vertical distance. The preferred embodiment of present invention has multiple sinks with downwardly disposed drains and a trough mounted to collect the effluent flow from the drains. The trough has a discharge end, an overflow end, and a generally rounded bottom extending beneath the sinks and upwardly open to effluent discharging from the drains. The trough is mounted to induce effluent flow to the discharge end of the trough. The effluent flows from the sink drain through flow diverters located on the drains toward the discharge end of the trough through an air gap and into the trough. The air gap is provided between the lower end of the flow diverter and the bottom of the trough. The effluent is discharged from the trough through the discharge end into a grease separator.

Abstract: An overflow system for a bathtub has an overflow port and has a drain pipe in connection with the overflow port. A flexible diaphragm is secured to and seals the port by a plate having a center opening. The diaphragm seals the overflow port when the system is being tested for leaks with pressurized fluid. Following the test, when the fluid is removed, the diaphragm is cut or slashed to open the overflow port to provide fluid flow. A cap covering the plate and the diaphragm is secured to the drain pipe and covers the plate and the diaphragm.

Abstract: To simplify fitting, securing and cleaning of a water trap to/from a washbasin or sink, there is provided a washbasin valve which has a water trap integral therewith and which forms a unit that can be inserted into and secured to the bottom of a washbasin, therewith a water drainage system can be connected directly to the valve. The washbasin valve is fitted by pushing the valve into a hole in the bottom of the basin and securing the valve therein, whereafter the valve is connected directly to a drain pipe. In cleaning the water trap, the seal is drawn-up out of the valve with the water drainage system still connected. No water will be spilled unnecessarily onto the floor beneath the washbasin in so doing.

Abstract: An extendible drain closure device has a plurality of telescoped hollow tubular members. The outermost hollow tubular member is a main body which has a base portion sized to seat down into a drain opening and an upper flange having a recessed portion. The main body is sized such that the upper flange is flush with the top of the drain opening. Multiple hollow tubular members are positioned within the main body in a telescopically operative manner with the innermost hollow tubular member having a stop ring which seats into the recessed portion of the flange. The top of the extendible drain closure device is thus flush with the top of the drain opening when the device is in a telescopically retracted position. A handle, which can be hinged so that it lies flat when not in use, is provided on the stop ring which may grasped and pulled upwardly to deploy the extendible drain closure device in a telescopically extended position.

Abstract: A drain trap which has a removable bottom portion that is attached by means of a hinge element at one end and a catch at an opposite end. Also, the bottom portion of the trap is enlarged to increase water flow and prevent easy clogging of the drain. In addition, a filter element is disposed within the trap and is disposed at an angle, again, to increase water flow and prevent easy clogging of the drain.

Abstract: A waterless urinal meeting U.S. sanitation code requirements and providing advantages of cost savings, water conservation and easy maintenance is particularly beneficial in public or institutional urinal facilities. An odor trap cartridge unit is configured as a coaxial dual chamber bell trap that eliminates the need for conventional P or J type traps required in water-flushed urinals. In the odor trap, a body of oily liquid sealant, floating on a body of trapped residual urine, serves as an odor barrier but allows entering urine to immediately permeate downwardly through the sealant and proceed to a drain without requiring flushing. The odor trap is molded from two plastic parts that are assembled together to form a cartridge unit that fits readily into a receptacle cavity of urinal bowl configured for wall mounting. The cartridge stays in place by friction and gravity, and can be easily removed with a special tool.

Abstract: A magnetically activated drain plug apparatus employs a permanent magnet placed externally of a plastic or thin non-magnetic drain pipe while another permanent magnet is placed at the lower end of the drain plug. The external magnet can be a ring shaped magnet, a plurality of magnets in a ring held in a support arm or a magnet slideably retained in a rail on the outside of the pipe. The external magnet is operated by a lever linkage or flexible cable that is external to the drain pipe. Moving the external magnet by operating the linkage or the cable attracts or repels the magnet in the drain plug. Consequently, due to the magnetic attraction or repulsion, the drain plug is moved between an open and a closed position. Guide nubs on the interior of the drain pipe and a stem or fins on the drain plug can be interengaged, thereby preventing tilting or rotation of the drain plug while in the up or open position.

Abstract: A trap for lavatory and other kinds of sinks comprising a capture vessel for rings and other valuables and a hair interceptor is disclosed.

Abstract: A prefabricated bathroom module for installation onto a deck of a marine vessel. The module having a floor sloped toward a drain assembly, a plurality of walls extending upward from the floor, and a ceiling attached to the top of the walls. The drain assembly has a drain trap arrangement with a drain line that extend from between the module floor and the deck of the vessel and connect to a drainage system of the vessel without penetrating through the deck. The module further having a plumbing system with water supply lines connected to the outside of the walls and routed to a common area, with control valves connected to the drain lines at the common area. An access panel mounted to a wall of the module adjacent to the control panels to provide a user easy access to the control valves. The plumbing system further including drain lines attached to the outside of the module and routing to the common area where the plumbing system of the module attaches to the drainage system of the vessel.

Abstract: A plumbing fitting serving both as a test closure and a trap bushing for a T-fitting. The test and trap fitting comprises a tubular member of circular cross section having an open end and an integrally closed end. The fitting can be inserted through an opening in a wall (if present) and into the intermediate port of a T-fitting constituting a pan of a soil pipe and a vent pipe assembly. The test and trap fitting has an outside diameter such that it is received in the intermediate port of the T-fitting with close tolerance, enabling a fluid-tight connection to be made in any appropriate manner such as by solvent welding. The test and trap fitting serves as a closure for the intermediate port of the T-fitting enabling pressure testing of the plumbing system, or the maintenance of head of water therein. The test and trap fitting can be cut substantially flush with the wall and serves as bushing to which a plumbing fixture trap can be connected in fluid-tight fashion by solvent welding and the like.

Abstract: Disclosed herein is a mechanism for remotely opening and closing a drain of a basin by means of a flexible rod moving through a non-linear tube. The rod connects a drive member, pushed or pulled by a user, with a member linked to a plug which opens and closes the drain. Within the bend of the tube, the flexible rod and/or tube are configured to leave a void between them in order to reduce friction. The configuration of the rod may include one or more bulbous ends or a lobed cross-section.

Abstract: An improved trap fitting assembly (10) which prevents the spread of smoke and fire through a floor (100) and ceiling (104) supported by a joist (102) in a building is described. The fitting is preferably adapted for mounting in a tub box (12) and uses a flammable T-connector (24) for draining a tub (106) through an overflow pipe (22) and a drain pipe (20) connected to a tub drain (42). The T-connector is mounted inside of a non-flammable threaded nipple (16) which is mounted in an opening (14) in the tub box by jam nut (26) and a ring gasket (28). A non-flammable J-pipe (30), filled with water to a level L--L, threads onto a lower extension (16b) of the nipple and prevents smoke and fire from spreading through the fitting assembly.

Abstract: A drain trap includes an L-shaped inlet tube, a cap, a vertical discharge tube and a garbage blocking member. The inlet tube includes a vertical portion, a horizontal portion having an end integral with the lower end of the vertical portion, an open upper end and an open lower end. The cap closes the open lower end of the inlet tube so that water falling from the open upper end of the inlet tube strikes an inner wall of the cap. The discharge tube has an open upper end and is connected securely to the upper surface of an intermediate section of the horizontal portion of the inlet tube so that the drain trap is generally F-shaped, thereby defining a return area in the horizontal portion of the inlet tube near the cap. The return area permits water that is blocked by the inner wall of the cap to flow upward into the discharge tube. The garbage blocking member is fitted detachably in the intermediate section of the horizontal portion of the inlet tube under the discharge tube.

Abstract: A trap for a sink, or the like, having an easily removable bottom portion by which to permit the trap to be cleaned and lost articles removed. The bottom portion of the trap is detachably connected to a dip portion by a plurality of locking clips. The dip portion includes a plurality of locking receptacles and the bottom portion includes a plurality of locking tabs that are axially aligned with respective locking receptacles. Each locking clip extends between an axially aligned receptacle and tab so as to apply a clamping force to the trap to prevent the separation of the bottom portion from the dip portion. The locking clips may be removed from the trap, whereby the trap may be opened without any special tools or plumbing skills.

Abstract: A sink trap having a generally semi-global main chamber, a shallow water chamber, a plurality of baffles for supporting the water chamber in the main chamber in an inwardly spaced relation and define a plurality of volute passageways between the main and water chambers and a cap detachably secured to the upper edge of the main chamber and an inlet pipe extending axially downwardly through the cap into the water chamber to lead drainage into the water chamber and discharging the drainage by overflowing the water chamber to flow through the volute passageways forming a turbulent liquid flow along a drainage pipe line to prevent the drainage pipe line from becoming choked with impassable matter.

Abstract: A spill free clean out type sink trap includes a cover sealingly and detachably mounted on a container and, in one embodiment, respective individual inlet and outlet conduits are spaced apart laterally from one another. The conduits both project downwardly below the cover into the container in which case, during use, the water level in the container is spaced from the cover. This is an air space of sufficient volume to receive and hold the liquid, normally retained in the conduits, when the seal between the cover and container is broken. In another embodiment, inlet and outlet conduits are concentric and the outlet conduit projects into a further conduit to an extent such that the lower open end thereof is below the normal liquid level. The further conduit projects sufficently downwardly into the container such that the liquid free volume in the container is greater than the volume of liquid contained in the lower end of the inlet conduit and the further conduit.