WO2016179228A1 - Toilettes anti-débordement - Google Patents

Toilettes anti-débordement Download PDF

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Publication number
WO2016179228A1
WO2016179228A1 PCT/US2016/030683 US2016030683W WO2016179228A1 WO 2016179228 A1 WO2016179228 A1 WO 2016179228A1 US 2016030683 W US2016030683 W US 2016030683W WO 2016179228 A1 WO2016179228 A1 WO 2016179228A1
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WO
WIPO (PCT)
Prior art keywords
drain
water
plenum
channel
fixture
Prior art date
Application number
PCT/US2016/030683
Other languages
English (en)
Inventor
Patrick Gerard STACK
Original Assignee
Stack Patrick Gerard
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US14/702,841 external-priority patent/US9309659B2/en
Application filed by Stack Patrick Gerard filed Critical Stack Patrick Gerard
Publication of WO2016179228A1 publication Critical patent/WO2016179228A1/fr

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D11/00—Other component parts of water-closets, e.g. noise-reducing means in the flushing system, flushing pipes mounted in the bowl, seals for the bowl outlet, devices preventing overflow of the bowl contents; devices forming a water seal in the bowl after flushing, devices eliminating obstructions in the bowl outlet or preventing backflow of water and excrements from the waterpipe
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
    • Y02A10/30—Flood prevention; Flood or storm water management, e.g. using flood barriers

Definitions

  • This disclosure relates to an improved bathroom fixture for flushing bodily waste materials into a drainage or sewer system. More particularly, this disclosure includes a toilet having a secondary drainage system that prevents the fixture from overflowing.
  • a toilet fixture includes a bowl, a primary drain fluidly connects said basin and said sewer drainage pipe, and a supply water plenum.
  • the fixture further includes a secondary drain fluidly connecting said supply water plenum to said sewer drainage pipe.
  • the secondary drain is separate from said primary drain and includes inlet means that are disposed within said supply water plenum and include at least one unshielded secondary drain hole in a lower half of the plenum.
  • the secondary drain further includes a second drain channel.
  • the secondary drain further includes a second drain outlet that is in fluid communication with said second drain channel, whereby said inlet means permits rising waste water to flow from said supply water plenum into said second drain channel and out of said second drain outlet to said sewer drainage pipe separately from the primary drain.
  • FIG. 1 is a partial cross-sectional side view of an anti-overflow fixture, in accordance with the present disclosure
  • FIG. 2 is a partial cross-sectional front view of the anti-overflow fixture shown in FIG. 1, in accordance with the present disclosure
  • FIG. 3 is bottom view of the anti -overflow fixture shown in FIGS. 1 and 2, in accordance with the present disclosure
  • FIG. 4 is a view through section 4-4 shown in FIG. 3, in accordance with the present disclosure.
  • FIG. 5 is a partial cross-sectional side view of an anti-overflow fixture according to an alternate embodiment, in accordance with the present disclosure
  • FIG. 6 is a view of the secondary drain of an anti-overflow fixture according to an alternate embodiment, in accordance with the present disclosure
  • FIG. 7 is a cross-sectional view of an additional embodiment of the disclosure wherein a hole internal to a supply water plenum provides a secondary drain to a fixture, in accordance with the present disclosure
  • FIG. 8 is a cross-sectional view of an additional embodiment of the disclosure wherein at least one unshielded hole internal to a supply water plenum provides a secondary drain to a fixture, in accordance with the present disclosure
  • FIG. 9 is a cross-sectional view of an additional embodiment of the disclosure including a gravity fed flush without a water jet and a rim overflow cavity feeding a secondary drain, in accordance with the present disclosure
  • FIG. 10 is a cross-sectional view of the embodiment of FIG. 9 illustrating a water flow path through the supply water plenum and the rim, in accordance with the present disclosure
  • FIG. 11 is the cross-sectional view of FIG. 10, including an exemplary water flow in accordance with a flush, in accordance with the present disclosure.
  • FIG. 12 is the cross-sectional view of FIG. 10, including an exemplary water flow in accordance with a primary drain clog event, in accordance with the present disclosure.
  • Each fixture 10 has a traditional primary drain 20 and a secondary anti -overflow drain 30.
  • each fixture 1 10 has a traditional primary drain 120 and a secondary anti-overflow drain 30.
  • the fixtures 10, 1 10 are substantially the same in size, shape, configuration, and operation as a conventional toilet or urinal respectively.
  • each fixture 10, 1 10 includes the following standard features commonly found in conventional toilets and urinals: a structural body or base 1 1 containing a generally annular-shaped bowl or basin 12 that receives the waste material and a respective primary waste drain system 20, 120 that is in fluid communication with the basin 12.
  • Each drain 20, 120 is configured having a series of bends that form a liquid trap 22.
  • This trap 22 operates to cause an amount of water to remain within the basin 12 after each time the fixtures 10, 1 10 are used or flushed.
  • the waterline 17, i.e., the height of the amount of water left in the basin 12 after each flush is determined by the relative volumes of the basin 12 and the primary drain pipes 20, 120 and the height that trap 22 extends upward relative to the basin 12.
  • the body 11 of bathroom fixture 10 is a toilet and in FIG. 5, the body 1 1 of bathroom fixture 1 10 is a urinal.
  • a tank or source of flushing water (not shown) of conventional design is fluidly coupled to the fixtures 10, 1 10 to provide the water needed to flush the contents of fixtures 10, 1 10.
  • the tank may be located in substantially any position relative to the fixtures 10, 110.
  • the tank may be physically mounted directly to the fixtures 10, 1 10 or at a remote position.
  • a pressurized water line and a check valve system may be employed in place of the tank system as a source of flushing water.
  • each fixture 10, 1 10 also includes a rim 13 which define the upper edge of basin 12.
  • Rim 13 includes a plurality of flush water outlets 14. These flush water outlets 14 are fluidly coupled to a source of flushing water, such as the above-described tank. The outlets 14 are oriented to direct an amount of flushing water to cascade down the basin 12 each time the fixtures 10, 1 10 are flushed. As the rim 13 and outlets 14 are conventional they will not be discussed in any greater detail.
  • Openings 18 for fastening the body 1 1 of the fixture are formed through the portion of the body 1 1 in close proximity to the bathroom's mounting surface (i.e., the floor or wall). These openings 18 permit conventional hardware or fasteners to fixedly hold the body 1 1 to that bathroom surface.
  • drain 20 terminates at a primary discharge port 24 located in close proximity to the bottom edge 15 of the fixture 10.
  • Primary discharge port 24 includes a cylindrical collar 25 that is sized to slide into the opening of a standard sanitary line or plumbing 5 that is normally found beneath a bathroom floor 7.
  • plumbing 5 is a length of conventional pipe that is usually orthogonal to the floor and terminates either even with or projects slightly above the level of floor 7.
  • a conventional sealing material such as a wax ring
  • Fixture 10 includes a secondary drain 30 that is fluidly coupled to the basin 12 through a plurality of inlet holes 32 formed in the back wall of the basin 12. These holes 32 are formed in the basin 12 at a location that is above the typical waterline 17 of the fixture 10. Each of the inlets 32 are located below the flush water outlets 14 found in the rim 13.
  • inlet holes 32 there are three to five inlet holes 32 that are each approximately 3/8 inch in diameter.
  • the holes 32 are disposed in a line that is substantially parallel to the waterline 17 and located approximately one to three inches beneath the rim 13. This location of the holes 32 ensures that waste water will not enter holes 32 unless there is a blockage (i.e., when waste water backs up toward the top of the basin 12), while concomitantly receiving a small amount of the water being emitted from the flush water outlets 14 during each flush to keep the drain 30 relatively clean and preventing the water in the drain 30 from becoming stagnant.
  • the location, quantity, size, shape and orientation relative to each other of the inlet holes 32 may vary and holes 32 need only be disposed below the outlets 14 and above the waterline 17 to operate as inlets for secondary drain 30.
  • secondary drain 30 also includes an overflow reservoir 34.
  • Reservoir 34 is an enclosed generally rectangular member that is disposed in the body 1 1 of fixtures 10, 1 10.
  • Reservoir 34 has a front side 33 that is in fluid communication with each of the inlet holes 32.
  • the bottom or floor 36 of reservoir 34 angles downward away from front side 33 and inlets 32 and terminates at an outlet hole 35 located at the lowest point of reservoir 34.
  • reservoir 34 is shaped to receive any liquid from inlets 32 and funnel that liquid toward the outlet hole 35 formed in the bottom of the reservoir.
  • Drain 30 further includes an overflow drain tube 38.
  • drain 38 is approximately one-half inch in inside diameter and is fluidly coupled to the outlet hole 35.
  • Drain 38 extends down the body 1 1 to a secondary discharge port 40.
  • secondary discharge port 40 passes through an aperture formed in the collar 25 and extends approximately one- half to one inch beyond the collar 25.
  • the extended length of port 40 beyond the collar 25 causes the secondary drain 30 to physically project into the plumbing 5 beyond the primary discharge port 24 of primary drain 20.
  • Drain tube 38 is configured having a series of bends that form a liquid trap 39.
  • This trap 39 is disposed along the length of tube 38 between the outlet hole 35 and the secondary discharge port 40. Trap 39 operates to cause an amount of water to remain within the drain tube 38 after each time fixtures 10, 1 10 are used or flushed. This trapped water in drain tube 38 prevents sewer gases and odors from passing through the secondary drain 30 into the lavatory.
  • FIG. 5 an alternative embodiment of the disclosure is shown whereby the body 1 1 of the fixture 110 is shaped as a urinal.
  • the body 1 1 1 and the following changes due to the normal wall mounting of a urinal instead of the conventional floor mounting of a toilet the components, configuration, and operation of the disclosure is identical to that described above with like parts having like reference numbers.
  • the primary drain 120 terminates at a primary discharge port 124 located in close proximity to the back edge 1 15 of the fixture 1 10.
  • Primary discharge port 124 includes a cylindrical collar 125 that is sized to slide into the opening of a standard sanitary line or plumbing 5 that is normally found behind a bathroom wall 9. It should be appreciated that plumbing 5 is a length of conventional pipe that is usually orthogonal to the wall and terminates either even with or projects slightly beyond the wall 9.
  • the drain tube 38 extends down the body 11 to a secondary discharge port 140.
  • Secondary discharge port 140 passes through an aperture formed in the collar 125 and extends approximately one-half to one inch beyond the collar 125.
  • the extended length of port 140 beyond the collar 125 causes the secondary drain 30 to physically project into the plumbing 5 beyond the primary drain 120.
  • FIG. 6 an alternative embodiment of the secondary drain 30 is shown wherein the reservoir 34 is eliminated and is replaced by a pipe union 44.
  • Union 44 is fluidly coupled to each of the inlet holes 32 at one end and to the drain tube 38 at the other.
  • the fixture is made from a ceramic material such as porcelain.
  • the fixture may be formed from other hard, durable, and waterproof materials, such as plastic or metal.
  • the secondary drain 30 is integrally formed within the body structure 1 1 of the fixture.
  • the drain 30 could be cast directly into the mold of a body 1 1 made of porcelain.
  • the secondary drain 30 may be a system of components separate from the structural body 1 1 of the fixture. That is, secondary drain 30 may be removably coupled to the basin 12 and body 1 1 to facilitate ease of manufacture or cost considerations.
  • drain 30 may be partially formed from conventional pipe material such as metal or plastic pipe.
  • some components of the secondary drain 30 may be integrally formed with the body 1 1, such as inlets 32, while other portions of the secondary drain, such as reservoir 34, overflow drain tube 38, and secondary discharge ports 40, 140 may be coupled to the body 1 1 to define the fixture.
  • the drain tube 38 and trap 39 may be mounted external to the body 1 1 and wherein a first end of the drain tube 38 extends through the body 1 1 to fluidly communicate with the inlet means 32, and the opposite end of the overflow drain tube 38 also extends through another aperture formed in the body 11 to fluidly communicate with the discharge port 40, 140.
  • the secondary drain 30 may be provided as separate components that are disposed within openings and passages formed within the body 11, effective to hide the secondary drain 30 within the body 11.
  • FIG. 7 illustrates in cross-section an additional embodiment of the disclosure wherein a hole internal to a supply water plenum provides a secondary drain to a fixture.
  • Configuration 200 includes fixture 210 with a water tank 250, a bowl 212, and a primary drain 220. Water is held in water tank 250 by tank valve 254. Once tank valve 254 is opened, water rushes according to the pull of gravity through tank hole 252 and enters supply water plenum 260 of fixture 210.
  • a flushometer-type valve can be used with a tank-less toilet, wherein depression of the valve causes a surge of water to enter supply water plenum 260.
  • Supply water plenum 260 receives the flow of water from tank 250 and channels the water flow to different destinations for the purpose of flushing the fixture, emptying contents of the bowl, and refilling the bowl after the flush.
  • a portion of the water flow within supply water plenum 260 is channeled to a channel 213 circumventing the rim of bowl 212. Water within channel 213 flows through holes 214 and into bowl 212.
  • a portion of the water flow within supply water plenum 260 is channeled through passage 262 which progresses around the bowl and fluidly connects with jet channel 264.
  • Water and waste from bowl 212 and water from jet channel 264 enter primary drain 220 and flush through the primary drain 220 as the column of water and waste create a siphon in accordance with operation of a fixture as is known in the art.
  • the water and waste exit the fixture through primary drain outlet 224.
  • Primary drain outlet 224 is coupled to a structure sewage pipe channeling the waste to other sewage pipes and subsequently out of the structure.
  • a secondary drain inlet 234 is illustrated within supply water plenum 260.
  • a secondary drain hole 232 permits water to flow from the supply water plenum 260 into secondary drain inlet 234.
  • One secondary drain hole 232 can be provided or a plurality of secondary drain holes 232 can be provided.
  • the primary drain 220 and bowl 212 are configured such that during normal operation, water fills in the bowl 212 until a corresponding water level within primary drain 220 causes water filling fixture to overflow the bend in primary drain 220. In this way, a normal water level for the bowl 212 to achieve during a filling cycle of the fixture is set.
  • Secondary drain inlet 234 is fluidly connected to secondary drain channel 230.
  • a channel can travel integrally within fixture 210 to connect the secondary drain inlet 234 and the secondary drain channel 230.
  • a channel connecting the secondary drain inlet 234 and the secondary drain channel 230 can include a water trap according to plumbing methods known in the art. Water within secondary drain channel 230 can exit the fixture through secondary drain outlet 240.
  • secondary drain channel 230 can be configured to empty into the primary drain 220 just above primary drain outlet 224.
  • Primary drain outlet 224 and secondary drain outlet 240 can be configured to connect to a standard plumbing connection known in the art. Water can be channeled from supply water plenum 260 into secondary drain inlet 234 for the purpose of flushing the secondary drain and cleaning it out.
  • a clog in primary drain 220 prevents water and waste from exiting bowl 212
  • the water level in bowl 212 rises.
  • a water level within the supply water plenum 260 will also rise.
  • water enters secondary drain inlet 234 flows to secondary drain channel 230, and flows out of secondary drain outlet 240.
  • water from the supply water plenum 260 bypasses the clog in the primary drain 220 and prevents the fixture from overflowing out of the bowl.
  • a secondary drain hole or holes can be added to a wall separating the bowl 212 and the secondary drain inlet 234 at point 270. Holes in both the bowl 212 and the supply water plenum 260 leading to the secondary drain can facilitate increased flow bypassing a clog in the primary drain 220, thereby decreasing a chance that the water level in the bowl will rise to a level where overflow outo of the bowl occurs.
  • Secondary drain hole 232 is illustrated on a vertical wall of secondary drain inlet 234. Different locations of drain hole 232 will change how much water is channeled from the supply water plenum 260 into the secondary drain inlet 234. In one exemplary embodiment, a hole facing a direction that the water is flowing from within the supply water plenum 260 will be more likely to get a large amount of water flowing through the hole. A hole facing away from the direction that the water is flowing from or a hole shielded in some way from the flow of water within the plenum can get a reduced amount of water flowing through the hole.
  • a combination of hole locations can be used, for example, with a single hole located to receive a large amount of water to facilitate flushing out the secondary drain and with two other holes shielded from the flow within plenum to reduce how much water is channeled from the plenum through the holes but still receiving water when the water level in the bowl and plenum begins to rise due to a clog.
  • Locations, orientations, sizes, and numbers of secondary drain holes can be determined experimentally, through computerized modeling, or by any method sufficient to contemplate flow of water through an exemplary fixture.
  • Secondary drain holes can be formed integrally with the wall during the process of constructing the fixture, for example, prior to the porcelain material being heated, or the secondary drain holes can be added to the walls of the fixture through a drilling process after the construction of the fixture.
  • FIG. 7 includes jet channel 264.
  • Some toilet fixtures include a water jet channel and some do not.
  • a secondary drain inlet within a supply water plenum can still work within a fixture wherein water only enters the bowl through holes around the rim. However, water from the rising level in the bowl will not enter the plenum until the water level exceeds the height of the holes around the rim.
  • larger holes around the rim and/or a portion of holes around the rim placed lower in the bowl could facilitate water flowing from a bowl back into the plenum before the water level gets too high in the bowl.
  • FIG. 8 is a cross-sectional view of an additional embodiment of the disclosure wherein at least one unshielded hole internal to a supply water plenum provides a secondary drain to a fixture.
  • Configuration 300 includes fixture 310 with a water tank 350, a bowl 312, and a primary drain 320. Water is held in water tank 350 by tank valve 354. Once tank valve 354 is opened, water rushes according to the pull of gravity through tank hole 352 and enters supply water plenum 360 of fixture 310.
  • a flushometer-type valve can be used with a tank-less toilet, wherein depression of the valve causes a surge of water to enter supply water plenum 360.
  • Supply water plenum 360 receives the flow of water from tank 350 and channels the water flow to different destinations for the purpose of flushing the fixture, emptying contents of the bowl, and refilling the bowl after the flush. A portion of the water flow within supply water plenum 360 is channeled to a channel 313 circumventing the rim of bowl 312. Water within channel 313 flows through holes 314 and into bowl 312. A portion of the water flow within supply water plenum 360 is channeled through passage 362 which progresses around the bowl and fluidly connects with jet channel 364.
  • Primary drain outlet 324 is coupled to a structure sewage pipe channeling the waste to other sewage pipes and subsequently out of the structure.
  • a secondary drain hole or holes 332 are illustrated within supply water plenum 360. Secondary drain hole or holes 332 are located in a bottom half of supply water plenum 360 and are unshielded within the plenum, providing a direct path for water to flow into holes 332. By being located near a bottom or in a lower half of the supply water plenum, the holes begin to drain overflowing water soon after the water begins to back-up, thereby reducing a chance that the backing up water will overflow the bowl. Further, by providing unshielded holes within the plenum, a flow through the holes can be maximized. Secondary drain holes 332 permits water to flow from the supply water plenum 360 into a secondary drain bypassing the primary drain.
  • the primary drain 320 and bowl 312 are configured such that during normal operation, water fills in the bowl 312 until a corresponding water level within primary drain 320 causes water filling fixture to overflow the bend in primary drain 320. In this way, a normal water level for the bowl 312 to achieve during a filling cycle of the fixture is set. Because a corresponding water level also fills within supply water plenum 360, it is noted that any secondary drain holes 332 should be located above the bend in primary drain 320 such that water will not drain from the water supply plenum 360 through the secondary drain holes 332 when the bowl is filled to a normal designed level.
  • Secondary drain holes 332 are fluidly connected to secondary drain channel 330.
  • a channel can travel integrally within fixture 310 to connect the secondary drain holes 332 and the secondary drain channel 330.
  • a channel connecting the secondary drain holed 332 and the secondary drain channel 330 can include a water trap according to plumbing methods known in the art. Water within secondary drain channel 330 can exit the fixture through secondary drain outlet 340.
  • secondary drain channel 330 can be configured to empty into the primary drain 320 just above primary drain outlet 324.
  • Primary drain outlet 324 and secondary drain outlet 340 can be configured to connect to a standard plumbing connection known in the art. Water can be channeled from supply water plenum 360 into secondary drain holes 332 for the purpose of flushing the secondary drain and cleaning it out.
  • a clog in primary drain 320 prevents water and waste from exiting bowl 312, the water level in bowl 312 rises.
  • a water level within the supply water plenum 360 will also rise.
  • water enters secondary drain holes 332 flows to secondary drain channel 330, and flows out of secondary drain outlet 340.
  • water from the supply water plenum 360 bypasses the clog in the primary drain 320 and prevents the fixture from overflowing out of the bowl.
  • a secondary drain hole or holes can be added to a wall separating the bowl 312 and supply water plenum 360 at point 370. Holes in both the bowl 312 and the supply water plenum 360 leading to the secondary drain can facilitate increased flow bypassing a clog in the primary drain 320, thereby decreasing a chance that the water level in the bowl will rise to a level where overflow out of the bowl occurs.
  • Secondary drain holes 332 are illustrated near a bottom wall of supply water plenum 360. Different locations of drain holes 332 will change how much water is channeled from the supply water plenum 360 into the secondary drain holes 332. In one exemplary embodiment, a hole facing a direction that the water is flowing from within the supply water plenum 360 will be more likely to get a large amount of water flowing through the hole. A hole facing away from the direction that the water is flowing from within the plenum can get a reduced amount of water flowing through the hole.
  • a combination of hole locations can be used, for example, with a single unshielded hole located to receive a large amount of water to facilitate flushing out the secondary drain and with two other holes shielded from the flow within plenum to reduce how much water is channeled from the plenum through the holes but still receiving water when the water level in the bowl and plenum begins to rise due to a clog.
  • Locations, orientations, sizes, and numbers of secondary drain holes can be determined experimentally, through computerized modeling, or by any method sufficient to contemplate flow of water through an exemplary fixture.
  • FIG. 8 includes jet channel 364.
  • Some toilet fixtures include a water jet channel and some do not.
  • a secondary drain inlet within a supply water plenum can still work within a fixture wherein water only enters the bowl through holes around the rim. However, water from the rising level in the bowl will not enter the plenum until the water level exceeds the height of the holes around the rim.
  • larger holes around the rim and/or a portion of holes around the rim placed lower in the bowl could facilitate water flowing from a bowl back into the plenum before the water level gets too high in the bowl.
  • FIG. 9 is a cross-sectional view of an additional embodiment of the disclosure including a gravity fed flush without a water jet and a rim overflow cavity feeding a secondary drain.
  • Configuration 400 includes fixture 410 with a water tank 450, a bowl 412, and a primary drain 420. Water is held in water tank 450 by tank valve 454. Once tank valve 454 is opened, water rushes according to the pull of gravity through tank hole 452 and enters supply water plenum 460 of fixture 410.
  • a flushometer-type valve can be used with a tank-less toilet, wherein depression of the valve causes a surge of water to enter supply water plenum 460.
  • Supply water plenum 460 receives the flow of water from tank 450 and channels the water flow to different destinations for the purpose of flushing the fixture, emptying contents of the bowl, and refilling the bowl after the flush. Water flow within supply water plenum 460 is channeled to a channel 413 circumventing the rim of bowl 412. Water within channel 413 flows through holes 414 and into bowl 412. Water and waste from bowl 412 enter primary drain 420 and flush through the primary drain 420 as the column of water and waste create a siphon in accordance with operation of a fixture as is known in the art. The water and waste exit the fixture through primary drain outlet 424.
  • Primary drain outlet 424 is coupled to a structure sewage pipe channeling the waste to other sewage pipes and subsequently out of the structure.
  • Supply water plenum 460 includes a rim overflow cavity 434 feeding a secondary drain hole or holes 432. During a primary drain clog event, water will back up through holes 414 and into supply water plenum 460. Rim overflow cavity 434 is situated to collect water spilling through channel 413 and channel the water to hole 432. Rim overflow cavity 434 can optionally be separated from a rest of the supply water plenum by separation wall 436 configured to channel flush water from the tank toward channel 413 without a majority of the water going to hole 432 without impeding overflow water from getting to rim overflow cavity 434.
  • Secondary drain holes 432 are fluidly connected to secondary drain channel 430.
  • a channel can travel integrally within fixture 410 to connect the secondary drain holes 432 and the secondary drain channel 430.
  • a channel connecting the secondary drain holes 432 and the secondary drain channel 430 can include a water trap according to plumbing methods known in the art. Water within secondary drain channel 430 can exit the fixture through secondary drain outlet 440.
  • secondary drain channel 430 can be configured to empty into the primary drain 420 just above primary drain outlet 424.
  • Primary drain outlet 424 and secondary drain outlet 340 can be configured to connect to a standard plumbing connection known in the art. Water can be channeled from supply water plenum 460 into secondary drain holes 432 for the purpose of flushing the secondary drain and cleaning it out.
  • a clog in primary drain 420 prevents water and waste from exiting bowl 412
  • the water level in bowl 412 rises.
  • water enters channel 413 flows to a rim overflow cavity 434, and exits the plenum through secondary drain hole or holes 432.
  • water from the supply water plenum 460 bypasses the clog in the primary drain 420 and prevents the fixture from overflowing out of the bowl.
  • FIG. 10 is a cross-sectional view of the embodiment of FIG. 9 illustrating a water flow path through the supply water plenum and the rim.
  • Configuration 400 is illustrated including supply water plenum 460 and channel 413 including holes 414.
  • FIG. 1 1 is the cross-sectional view of FIG. 10, including an exemplary water flow in accordance with a flush.
  • Configuration 400 is illustrated including supply water plenum 460, bowl 412, and channel 413 including holes 414.
  • Rim overflow cavity 434 including wall 436 and a plurality of secondary drain holes 432 is illustrated.
  • water enters through supply water plenum 460 though an attached tank or water supply line and flows from the plenum to channel 413.
  • the water is directed by wall 436 around rim overflow cavity 434 such that a majority of the flow is directed into channel 413 to be provided to holes 414.
  • Some small portion of the water flow can flow into cavity 434 and through holes 432 to maintain water in the associated secondary drain trap or traps and to flush the secondary drain out.
  • FIG. 12 is the cross-sectional view of FIG. 10, including an exemplary water flow in accordance with a primary drain clog event.
  • Configuration 400 is illustrated including supply water plenum 460, bowl 412, and channel 413 including holes 414.
  • Rim overflow cavity 434 including wall 436 and a plurality of secondary drain holes 432 is illustrated.
  • Water backing up into bowl 412 enters channel 413 through holes 414. Some of the water flows into cavity 434 and out holes 432, while some of the water backs upon to the rest of the supply water plenum 460. This flow exiting through holes 432 and filling supply water plenum prevents the backing up water in bowl 412 from overflowing from the fixture.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Sanitary Device For Flush Toilet (AREA)

Abstract

Système de toilettes qui comprend une cuvette (412), un drain primaire (420) qui relie de manière fluidique ladite cuvette et ledit tuyau de drainage d'égout, et une chambre d'alimentation en eau (413). Le système comprend de plus un drain secondaire (430) reliant de manière fluidique ladite chambre d'alimentation en eau audit tuyau de drainage d'égout. Le drain secondaire est séparé dudit drain primaire et comporte des moyens d'entrée (432) qui sont disposés à l'intérieur de ladite chambre d'alimentation en eau et comprennent au moins un trou de drainage secondaire non bloqué dans une moitié inférieure de la chambre. Le drain secondaire comprend en outre un second canal de drain pourvu d'un piège à eau. Le drain secondaire comprend en outre une seconde sortie de drain (440) qui est en communication fluidique avec ledit second canal de drain, moyennant quoi ledit moyen d'entrée permet aux eaux usées montantes de s'écouler depuis ladite chambre d'alimentation en eau dans ledit second canal de drain et hors de ladite seconde sortie de drain vers ledit tuyau de drainage d'égout séparément du drain primaire.
PCT/US2016/030683 2015-05-04 2016-05-04 Toilettes anti-débordement WO2016179228A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US14/702,841 US9309659B2 (en) 2005-09-02 2015-05-04 Anti-overflow toilet and method
US14/702,841 2015-05-04

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WO2016179228A1 true WO2016179228A1 (fr) 2016-11-10

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113445599A (zh) * 2021-07-07 2021-09-28 佛山东鹏洁具股份有限公司 一种可冲miso的马桶

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