Abstract: For forming a main body of a toilet bowl with which installation operation of a trap device is easy and which is superior in ornamental design possibilities and that has sufficient mechanical strength, the main body (1) of the toilet bowl is formed by cast molding as a unit with a bowl portion (3), a rising pipe (5) which is continuous with a drain opening (4) of the bowl portion, a falling pipe (6) which is continuous with the rising pipe (5) and a skirt portion (7) covering from a side portion to a rear portion thereof, and is opened in the lower portion and the rear portion of the main body, and further a fold back portion (8) is formed as a unit from the main body of the toilet bowl in the rear portion thereof.

Abstract: A flush toilet has a housing and a bowl set in the housing, having an upper rim, and having an inner surface extending downward from the rim. A ring atop the bowl has a plurality of nozzles spaced about the rim and each directed at an acute angle against an immediately adjacent portion of the inner bowl surface. Respective conduits have outer ends connected to the nozzles and inner ends. A supply feeds water under pressure to the inner ends and thereby directs streams of water from the nozzles against the inner surface. The conduits are all of substantially the same length between their ends so that pressure at the nozzles is uniform. These conduits are at least partially formed by flexible tubes. In addition each nozzle has an oval-shaped outlet opening and is directed at an acute angle of between 10° and 20° against the respective adjacent bowl portion and also at an angle of between 20° and 40° to vertical.

Abstract: A flushing device for disposing of human waste includes a bowl. A trap section, disposed in a draining path extending from the bowl, has a rear end that pivots between upper and lower positions. A case main body communicates with an external drain pipe and houses the trap section. A driving mechanism moves the trap section between the upper and lower positions. A water supply mechanism supplies water to the bowl. A ring is fitted on the rear end of the trap section. The ring has notches on upper and lower sides such that side edges of the ring have an arcuate shape. The case main body has an arcuate shaped profile that is substantially identical to the arcuate shape of the ring, wherein as the trap section pivots from the upper to lower position, a gap between the arcuate shape of the ring and the upper portion of the rear face inside the case main body is wider than the gap between the arcuate shape of the ring and the lower portion of the rear face inside the case main body.

Abstract: A water-closet bowl which comprises a bowl part provided with a wash water delivery opening on the wall surface; a substantially inverted U-type trap water discharge channel formed adjacent to the bottom of the bowl part and communicating with the bowl part through the inflow opening at the bottom; a tank for storing wash water provided at the rear, upper portion of the bowl part and having a discharge opening at the bottom; a wash water-distributing part provided substantially just under the discharge opening of the tank and used for receiving the wash water from the tank and distributing it; a rim water path formed on the periphery at the upper end of the bowl part; a rim part having a plurality of wash water injection holes provided in communication with the rim water path; a first water channel communicating between the wash water-distributing part and the wash water delivery opening; and a second water channel communicating between the wash water-distributing part and the rim water path.

Abstract: A water closet having a trap drainage exit in a wall above a floor, in which at the time of flushing, a vent space is partitioned in a wall-like manner by water falling from a weir. A rise in the water level of a sump portion of the trap results, and air within the trap is quickly forced toward the drainage exit side by the force of the water flow to cause the interior of the trap drainage to have a decreased pressure so that siphon action easily occurs. When the feed rate of water from a tank slows, to terminate the siphon action, air is promptly introduced into the siphon area from a notch in a partitioning wall, whereby the air introduction is hastened and the siphon effect is terminated quickly.

Abstract: The flushing means has a flushing tank, which is connected to a flushing channel of a toilet bowl via a flushing elbow and to a nozzle (jet) via a connection pipe. During flushing, part of the flushing water is released from the top into the toilet bowl via the flushing elbow and the flushing channel, and another part is released into the lower area of the toilet via the connection pipe and the nozzle. The flushing water entering the nozzle is taken up by an opening of the connection pipe, which extends into the flushing elbow and is always open. To prevent the connection pipe from being suctioned empty and consequently to prevent the suctioning of a suction siphon from being interrupted, the connection pipe has a hydraulic seal, which hydraulically seals this pipe against a vacuum at the outlet opening of the connection pipe during a suction process. Valves and the like, which are susceptible to the deposition of lime, are not employed.

Abstract: A toilet bowl and rim construction capable of generating superior vortex flushing action. A rim restrictor means is strategically positioned on a side of the rim to direct the bifurcated streams of water to converge at the side of the rim. The relocation of the contact point from the conventionally placed central position to a strategically located side position increases the velocity and force on the water stream. Control of the volume, flow rate and directional orientation of the flushing water into and within the rim cavity and through rim discharge orifices produces superior vortex flushing action.

Abstract: A flush toilet system includes a bowl that is drained in a flush operation through a flow path including a trap and a siphon. A bypass passage supplies a back jet of water in the reverse flow direction in the flow path. A back jet valve assembly opens to permit back jet flow during only the first part of the interval during which flush water is supplied to the system from a water supply. The kinetic energy of the back jet is converted to static pressure to block or impede flow of flush water through the flow path. Water level increases in the bowl, and when the back jet flow is discontinued a siphon flush operation proceeds. The back flush valve assembly also releases water after the flushing operation in order to reseal the trap.

Abstract: A flush toilet stool includes a toilet bowl and a trap drainage passage connected to the toilet bowl. The toilet bowl has a water jet hole defined in a bottom region thereof and opening toward the trap drainage passage. A pressurizing unit such as a water pump is coupled to the water jet hole for drawing water under lower pressure directly from an external water supply and expelling the water under higher pressure through the water jet hole toward the trap drainage passage to develop a siphon flow to discharge sewage from the toilet bowl through the trap drainage passage.

Abstract: A vacuum assisted toilet wherein a vacuum is applied between upper and lower traps (40,44 in FIG. 2) of a toilet bowl outlet during a flushing, wherein the lower trap is constructed to more reliably assure that an air passage (64) above a pool of water (52) of the lower trap will quickly close near the beginning of a flushing and will remain open between flushings. The lower trap has a lower wall (50) that holds a pool of water (52) with a pool top (62) of predetermined height (A) between flushings, and has an upper wall (60) spaced above the pool top to form an air passage. The upper wall forms a narrow but tall vent (100, FIG. 4) of the air passage, which assures that the air passage will always be open between flushings, and with the narrow but tall vent being quickly closed by water rapidly flowing therethrough at the beginning of a flushing.

Abstract: A toilet which uses a reduced amount of water is disclosed. In one aspect there is a toilet having a bowl with an upper lip and a lower wall having a sump portion at its base. The sump is connected through a bowl outlet to a siphon for the discharge of cleaning liquid and waste from the bowl. A hollow rim receives cleaning liquid, the rim having a rim floor adjacent the upper lip of the bowl and being constructed to allow cleaning liquid to enter the bowl through a first and a second hole in the rim floor. A well is formed in the rim floor. The second hole is in the well floor. A partial block is also provided in the well and the well floor is sloped.

Abstract: A sanitary fixture constructed from at least inner (1) and outer (45, 50, 61) shell sections formed from any suitable material such as a plastics material. The inner shell (1) has an upwardly facing concave basin portion (1A) and is supported on a cradle like member (30). The supported inner shell (1) provides structural integrity for the fixture and the remaining components of the fixture are carried essentially by the supported inner shell. The cradle like support (30) has a bottom section (31) for attachment to a supporting base, a top section (33) that engages the undersurface of the basin, and an intermediate section (32) interconnecting the top and bottom sections together.

Abstract: A water closet having a trap drainage exit in a wall above a floor, in which at the time of flushing, a vent space is partitioned in a wall-like manner by water falling from a weir. A rise in the water level of a sump portion of the trap results, and air within the trap is quickly forced toward the drainage exit side by the force of the water flow to cause the interior of the trap drainage to have a decreased pressure so that siphon action easily occurs. When the feed rate of water from a tank slows, to terminate the siphon action, air is promptly introduced into the siphon area from a notch in a partitioning wall, whereby the air introduction is hastened and the siphon effect is terminated quickly.

Abstract: A combination toilet and urinal which includes a one piece urinal as part of the flush tank. The urinal is fitted with a flush valve using a portion of the water from the water closet. The urinal includes a separate drain positioned directly above and opening into the sewage outlet of the toilet. The urinal is situated higher than the toilet and to the rear. The seat of the urinal is also positioned within a central, front recess formed in the water closet. The urinal includes a seat such that females as well as males can use the urinal and avoid the higher water usage of the toilet. The support structure supporting the urinal includes a converging pair of side walls which form leg reception areas both for those sitting on the urinal and those standing in front of the urinal. The toilet seat is also formed of a width which is lesser in width than a conventional toilet seat.

Abstract: A water closet has a flush tank which reduces the head of flush water presented to a downwardly converging bowl which receives waste to be discharged through an outlet to a siphon trap, the bowl having a rim which causes the flush water to be presented to the trap in a vortex fashion. The trap is U-shaped and includes an upleg and downleg, the upleg having a converging-diverging cross-section to cause the dischrge to be pushed quickly from the bowl into the downleg, which becomes filled and creates a siphon. As waste travels down the downleg it passes through an expansion chamber which imparts a swirling movement to the waste and is again restricted at the outlet, which prevents air from entering the trapway and breaking the siphon.

Abstract: A sanitation appliance such as a water-closet or the like equipped with a generally vertically extending outlet pipe is provided with a resilient diaphragm mounted within said pipe and extending thereacross to stem the flow of flushing water passing through said pipe until a sufficient quantity of the water has accumulated whereupon the diaphragm operates to pass the water through the pipe thereby to cause the accumulated water to act as a water plug creating a suction effect within the pipe.

Abstract: The quantity of fluid utilized in flushing a conventional closet-type toilet bowl is reduced by a water saving device. The water saving device is adapted to be positioned within the trap of the toilet, and includes a supporting frame with a movable gate operatively connected therewith to open and close the fluid flow passage through the trap to the sewer access opening. After the toilet flushing operation is effected, the gate remains in a closed position until the level of fluid in the toilet bowl reaches a predetermined level, at which time the gate opens to allow the fluid to flow into the sewer access opening by a natural siphoning action. After the flow of fluid through the trap diminishes, the gate returns to a closed position. As a result, the needless flow of fluid from the toilet bowl prior to the time the natural siphoning occurs is eliminated and a water savings is effected.

Abstract: A toilet of the free-standing type having a bowl fixture adapted for being secured to a floor whereby there is a floor drain for receiving the bowl discharge, the floor drain being spaced by an indeterminately given rough-in distance from a wall. A tank fixture is secured to the bowl fixture with the tank fixture proximate the wall for supplying water for flushing of the toilet bowl. The bowl fixture includes a bowl siphon communicating with the bowl and the siphon having a discharge opening is spacedly remote from the floor drain. The discharge opening is presented rearwardly of the bowl and toward the wall. Connected at one end of the siphon discharge opening is a discharge conduit arrangement for receiving the bowl discharge via the siphon.

Abstract: A toilet facility for use in boats, campers, mobile homes, recreational vehicles, land and water cruisers, residences, basement flush up, and the like, is disclosed. The toilet facility utilizes a minimum amount of flush water and includes a modified water closet bowl of the siphon type, a sump tank, a macerator pump means, and a water closet tank. A macerator pump means is coupled in fluid communication between a holding tank or other disposal means and the sump tank. The macerator pump is electrically energized through a control circuit when the flush handle is tripped. The duration of the flush cycle may be controlled by a timing circuit which will automatically shut off the macerator pump. Also, the macerator pump may be shut off by the control circuit sensing that the flush cycle is complete, that is, when the macerator pump is pulling only air therethrough or when the control circuit senses the absence of water at the macerator pump inlet.

Abstract: Disclosed are an integral plastic bowl, waterway and trap for a toilet and the method of making the product. The bowl is concave and leads into a trap which may be interconnected with a standard closet flange. The waterway is vertically aligned with the trap and slopes downwardly from an inlet to an outlet, which is preferably at a position near the bottom interior of the bowl and which also preferably includes a wall surface in overlying alignment with at least a portion of the downwardly sloping waterway portion. During flushing, water from a reservoir flows down the waterway, against the outlet wall surface causing a vortex in the bowl, and then out of the bowl into the trap. In the method of making the product, a plastic parison is positioned between the sections of a blow mold. Next, the mold sections are closed, pinching portions of the parison shut to partially form the trap and waterway and enclosing another parison portion in a bulbous mold cavity.

Abstract: A water distributor adapted for use in a siphon closet of the type provided with an open flush rim. The distributor includes a strip of material adapted to be inserted and positioned in a siphon closet to at least partially close the open flush rim therein. An arrangement of apertures are in the distributor to form passageways from the at least partially closed flush rim. The distributor is inexpensive to manufacture and can be simply and efficiently installed. It is formed of a material of limited flexibility so that it need only be flexed, pressed into the open flush rim of the siphon closet from below and released. The distributor is formed of a single inexpensive element and no additional fasteners are required for installation. The distributor is not visible when installed and is relatively permanent and can only be removed by an expert with special tools.

Abstract: The invention is a molding process adapted for the production of plumbing fixtures, such as a toilet whose functional surfaces are resistant to erosion by moving water wherein a ceramic shell forms a liner having external surfaces and the functional surfaces of the plumbing fixture. In the case of the toilet the ceramic shell includes a bowl, a siphon trap and a water flush ring. The molding process includes the steps of coating the external surfaces of the ceramic shell with a layer of resilient material and then suspending the ceramic shell upside down within a female mold member having internal surfaces so that the internal surfaces of the female mold member are slightly spaced from the external surfaces of the ceramic shell thereby leaving a gap between the internal surfaces of the female mold member and the external surfaces of the ceramic shell.