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WO2015159180A1 - Système et procédé pour chasse d'eau de toilettes comprenant un système de soupape d'aspiration commandé par levier comprenant un mécanisme de chasse d'eau à réservoir commandé - Google Patents

Système et procédé pour chasse d'eau de toilettes comprenant un système de soupape d'aspiration commandé par levier comprenant un mécanisme de chasse d'eau à réservoir commandé Download PDF

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Publication number
WO2015159180A1
WO2015159180A1 PCT/IB2015/052487 IB2015052487W WO2015159180A1 WO 2015159180 A1 WO2015159180 A1 WO 2015159180A1 IB 2015052487 W IB2015052487 W IB 2015052487W WO 2015159180 A1 WO2015159180 A1 WO 2015159180A1
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WIPO (PCT)
Prior art keywords
bowl
cistern
water
lever
flushing
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Ceased
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PCT/IB2015/052487
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English (en)
Inventor
Ashok Kumar BHUKYA
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Individual
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Individual
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D5/00—Special constructions of flushing devices, e.g. closed flushing system
    • E03D5/012—Special constructions of flushing devices, e.g. closed flushing system combined with movable closure elements in the bowl outlet

Definitions

  • a system and method for flushing toilet having lever controlled suction valve system with controlled cistern flushing mechanism
  • the present invention relates to flush toilet systems and in particular to a flush toilet that uses significantly less water than a conventional flush toilet. More specifically the present invention discloses a unique, cost effective system and method for flushing toilet having lever controlled suction valve system with controlled cistern flushing mechanism. Said flush toilet system can conserve water and space, which can be economically manufactured while meeting these and other requirements.
  • a flush toilet is a toilet that disposes of human liquid and solid waste, by using water to flush it through a drainpipe to another location for disposal.
  • the flushing mechanism provides a large flow of water into the bowl and wastage is disposed in to the sewage drain pipes.
  • Flushing mechanisms are found more often on western toilets - commodes. Modern toilets incorporate an "S”, “U”, “J”, or “P” shaped bend that causes the water in the toilet bowl to collect and act as a seal against sewer gases. Since flush toilets are typically not designed to handle waste on site, their drain pipes must be connected to waste conveyance and waste treatment systems. A flush toilet may be called a lavatory or simply "toilet”.
  • EP 0781366 B1 discloses a water closet having a toilet bowl and attached thereto a flushing fluid cistern.
  • This comprises an inner cistern and a casing or outer cistern.
  • the inner cistern rests against the toilet bowl by means of an external flange which also forms a supporting surface for the casing.
  • the inner cistern is secured to the toilet bowl by fastening means which are arranged on the outside of the inner cistern and engage with the flange of the inner cistern.
  • the casing has an inwardly directed flange at least at the locking projection or projections and at the locking hook or hooks (24) and is attached on the supporting surface by means of these projections and hooks.
  • CN 100510286 C relates to a "Water-saving toilet flushing device" which comprises of water flushing device, toilet flushing cistern lid on, the tank safety soluble containers, tank wall with water inlet, inlet installed water connection, water connection of a mains connection, water connection on the other side installed adjuster release valves, regulators release valve connection pipes, water pipes connected by conductive air impeller outlet, the lid put water button flush tank bottom drain safety fittings, drain and flush push button flush connection between the drain port water-soluble container through the valve, which valve adjuster release sleeve formed by the front case and the rear housing, the front and rear An apartment with spring contact spring, the spring seat fixed to the front casing of the shunt plug, and the rubber plug baffle block, a spring after the sleeve against the spool and tie, jacket sidewall interface is installed after the intake plugs, intake plug and top plug spring contact, and adjustment cap is fixed; adjuster release valve Qiantao shunt valve inlet Internal Security and strainers.
  • Water closet according to US 3883903 A is adapted to be mounted on any one of a variety of bases for discharge of waste material into a drainage system, a holding tank, or the like, and which includes features for making optimum use of the flush water.
  • the assembly includes a bowl and a pivotally mounted pan for closing the discharge outlet of the bowl and shaped so that it can provide a water seal when the pan is in its closed position.
  • the pan can be tilted to an open position to discharge the contents of the bowl, and the actuator mechanism for tilting the bowl is operable to open a valve so that flush water will flow into the bowl in timed relation to movement of the pan.
  • the actuator mechanism is also operable to be moved in another direction so that water can be introduced into the bowl to a desired depth in the pan while the pan is in its closed position.
  • US 20130174338 A1 discloses "Water flow control system and method for exterior retrofitting toilet tank".
  • a system or controlling the duration and volume of a flow of water in a flush of a Toilet has a converting element, for converting the normally buoyant flush valve to a non-buoyant flush valve.
  • a programming element enables programming of a controlling time for the flush duration and volume of water.
  • a controlling element connects the programming element to the non-buoyant flush valve, for retaining it in a raised open position upon user actuation, and for releasing it to close the flush valve within the controlling time.
  • the controlling element is mounted to the exterior wall of the toilet tank and has a connecting element connected to the flush actuator outside the tank which is connected to the flush lever and to the non-buoyant flush valve within the tank.
  • WO 2013147447 A1 discloses a "Water-saving toilet” relating to a sit-down toilet wherein the toilet is flushed using a dramatically reduced amount of flushing water, and relates to a water-saving sit-down toilet wherein the pressure of flushing water discharged from a cistern into the toilet is raised and a straight discharge pipe is used such that the toilet is flushed clean using a small amount of water, and, at the same time, excreta is smoothly discharged as the direct discharge tube is opened and closed automatically by means of the water pressure and a permanent magnet and an electromagnet, and an appropriate amount of residual water is supplied to the toilet bowl such that odours are blocked from rising from a foul-water port into the toilet.
  • WO 201 1028055 A2 relates to a flush toilet which can not only substantially reduce the production of noise and the amount of water consumed but can also essentially stop foul smells and backflow from occurring by closing the water-drainage pathway itself, by means of an arrangement whereby body waste can be removed at one time through a suction unit operated by means of motor drive while, simultaneously, unsanitary material sticking to the inside of the bowl of the toilet itself can be washed off while employing the minimum amount of water without any need for a cistern.
  • the present invention comprises a water-supply unit which is provided on one side of the toilet main body and which is for supplying water from a water pipe to the bowl of the toilet main body and a suction unit which operates in such a way as to either open or close the water-drainage pathway through which the body waste flows out from the bowl.
  • a vacuum valve controller for a vacuum sewer system including a suction pipe which is communicated with a vacuum system by opening a vacuum valve, and which is cut off from the vacuum system by closing the vacuum valve is disclosed in US 5588458. Soil water in a soil water basin is sucked through the suction pipe and sent to a predetermined place by opening the vacuum valve.
  • the vacuum valve controller is provided with a control device which closes the vacuum valve by detecting that the suction pipe has begun to suck air from a change of the pressure difference between two points in the suction pipe which are different in height from each other, which provide a vacuum valve controller for a vacuum sewer system which is simple in structure, easy to maintain and capable of stable operation.
  • WO 2009000881 A1 discloses a sanitary appliance for the collection and elimination of organic refuse, comprising a bowl for collecting said refuse, a sanitary trap communicating with said bowl via an outlet aperture un the base of the bowl, a cistern for containing a certain quantity of a flushing fluid and a distributor ring connected to said cistern and arranged to convey the flushing fluid along the walls of said bowl, the appliance comprising a pump for raising the pressure of said fluid before it reaches the ring .
  • the present invention provides a method for flushing toilet having bowl pipe with "suction valve” operated by spring enabled lever control system.
  • a unique cistern also is incorporated in the system.
  • the flush toilet is provided with suction valve system arranged in bowl outlet pipe, operated by means of spring enabled lever and a straight discharge pipe is used at the outlet of the bowl, facilitating to flush and clean the toilet at ease in addition to the state of the art cistern which provides water required for sealing the outlet of the bowl, after flushing the toilet.
  • the main objective of the present invention is to provide an efficient system for flushing the toilet, which significantly uses less water than the conventional full-flush toilet.
  • Yet another objective is to have a clog free system by which the excreta is not clogged in the out let pipe of the bowl wherein the conventional system is provided with bend pipes to form water seal.
  • Still another objective of the invention is to have a unique design for the cistern having provision for discharging water for flushing the toilet as well as for making water seal in the bowl.
  • One more object of the invention is to have a cost effective system of flush toilet, which has its universality in implementation, irrespective of the location, unlike the existing flush toilet system.
  • a system for flushing toilet having lever controlled suction valve system with controlled cistern flushing mechanism comprising of an automatic flushing cistern connected to the toilet bowl.
  • the toilet bowl is connected to a horizontal drainpipe which is again connected to the septic tank or sewer line.
  • the horizontal drain pipe consists of three sub systems like, spring enabled lever control system, suction valve system and an automated cistern controlling system which are interconnected in bowl lever pipe 'Junction box' that is located on top side of the bowl outlet drain pipe.
  • the lever system is connected to the 'suction valve' via lever junction box and a suction valve box which are interconnected by two rotating gear wheels.
  • This suction valve is located in side of bowl outlet drain pipe and abuts to the opening of the bowl outlet pipe by forming a suction bond which acts like a seal to prevent sever gases inflow into the bowl.
  • the lever system is also connected to the cistern lever via lever junction box which is used for an automated cistern flushing mechanism coordinated with opening and closing mechanism of suction valve.
  • the lever Whenever the lever is applied, it opens the suction valve and the cistern valve simultaneously at a coordinated time.
  • the suction valve opens the bowl outlet passage forcibly by breaking the suction bond and it flushes out the waste into the bowl outlet drain pipe along with water from the cistern after mixing.
  • a person feels that wastage is flushed out completely he relieves the bowl lever which in turn pulls the cistern lever back and closes the cistern water outlet by means of cistern lever plug along with closure of bowl suction valve.
  • opening and closing operation of suction valve is well coordinated and simultaneous to opening and closing the cistern water outlet to bowl and resulting flushing the wastage.
  • this suction valve and automated and coordinated cistern flushing system we can save more water when compared to the existing systems.
  • the cistern is modified in such a way that the cistern is having two modes of water filling mechanism.
  • Fig 1 A flushing toilet according to the invention showing the system when lever is in the normal position and suction valve is in closed position.
  • Fig 2 A flushing toilet according to the invention showing the system when the lever system is operated and suction valve is open positioned closed (toilet is in use for flushing).
  • Fig 3 A flushing toilet according to the invention showing the cistern connected to external water pipe line, bowl connected to bowl lever suction box and bowl outlet drain pipe.
  • Fig 4 Top view of horizontal 'bowl drain pipe' with lever system
  • Fig 5 'Bowl drain pipe' with lever and suction valve system.
  • Fig 6 Cistern with automated flushing mechanism.
  • Fig 7 A process flow diagram sowing the sequence of events during flushing of the toilet (Step -1 )
  • Fig 8 A process flow diagram sowing the sequence of events just after completing flushing of the toilet (Step 2).
  • 1 .Cistern 2. Cistern lever, 2a.Cistern lever in normal position, 2b Cistern lever when applied; 2c.Cistern lever plug; 3. a. Cistern filling tap inlet for providing water required for flushing the bowl; 3.b. Cistern-Bowl filling tap inlet; 3c 'Bowl water filling outlet'; 3d. Cistern filling outlet; 4.By pass water bowl filling pipe line from cistern after flushing; 5.Water pipe line to bowl from cistern for flushing; 5a. Cistern -bowl flushing outlet 6.Bowl; 7.Bowl pipe outlet; 8.Bowl outlet pipe connecting to sewer line / septic tank; 9.
  • Bowl lever 9a.Bowl Lever in normal position -suction valve in closed position, 9b. Bowl lever when operated- suction valve in open position; 10.
  • Lever spring 1 1 . Sealing closure which functions as suction valve ;1 1 a.Suction valve in closed position; 1 1 b. Suction valve in open position; 12.
  • Suction valve 'axis line' 21 a.Stopper 'on' or 'off valve for filling the cisternal b. Stopper 'on' or 'off valve for filling toilet bowl; 22a& 22b. Valve actuator rod of the respective stopper valves; 23a &23b.Stopper nut / bush to adjust both the tap stopper valves; 24.a and 24b Stopper base to connect to the tap stopper valves with the float; 25.Link for stopper base and float; 26.float; 27a and 27b.Water pipe line connected to main water pipe, 27. Main water pipe line.
  • the toilet flush system is provided with a toilet bowl (6) or commode where human wastage such as feces and urine are capable of collecting having an outlet (7) which can be closed by a suction valve (1 1 a) operated by means of bowl lever (9) and connected to a bowl outlet pipe (8) connecting to sewer line / septic tank having suction valve box (12).
  • the bowl is connected to cistern (1 ) by means of pipe line (5) through which flows the water required for flushing as well as for filling for making the water seal in the bowel.
  • the bowl lever (9) in turn is operationally connected to the cistern lever (2) by means of a set of gear wheel viz. lever gear wheel(13) inside the bowl lever junction box (17) and suction valve gear wheel(14) out side said gear box and connecting rod linkage .
  • the out let pipe (8) can be directly connected for transporting the human waste as sewage in waste water sewage system.
  • the bowl lever (9) is connected to axis line (19) of the junction box (17) which rotates according to the movements of the bowl lever.
  • the axis line (19) of the junction box contains an extension line (15) which makes up and down motions according to the movements of bowl lever.
  • This extension is now connected the bowl lever-cistern link (16) which is connected to the cistern lever (2) via a junction box passage whole (18).
  • the lever link pulls down the bowl cistern link (16) and cistern lever (2) so that the cistern valve will be opened to flush the water as shown in Fig.2.
  • the bowl lever After the completion of flushing process the bowl lever is relaxed to its normal position (9a) along with closing of suction valve (1 1 a) and the cistern valve, as shown in Fig.1 .
  • the switching on or switching off of the cistern lever happens parallel to the opening and closing mechanism of suction valve system when the bowl liver is operated.
  • the bowl Lever When the bowl Lever is operated by pulling up (9b), it lifts the cistern Lever link (16) and the flushing mechanism opens and water starts flowing to the bowl. When, a person feels that wastage is completely flushed out, he relieves the bowl lever (9) which in turn pulls the cistern Lever back. Then cistern lever link automatically closes the cistern-water passage (5a) by the cistern lever plug (2c) inside cistern.
  • the advantage of the system is that whenever wastage is flushed out then one can stop the flushing mechanism in-between without fully emptying the water from cistern. This system can save more water when compared to the prior art systems.
  • the cistern is having two modes of water filling mechanism. First the cistern will be filled after flushing the toilet like any other system and second is the simultaneous supply of water to the toilet bowl, to form a water seal in the bowl outlet adjoining suction valve (1 1 a) as shown in Fig.1 .
  • the cistern lever (2) is connected to the bowl lever-cistern link (16) on one side, and the other side to the plug (2c) which can open. While in the prior art system at the time of flushing, this cistern Lever is operated by hand, according to the present invention the cistern liver (2) is interlinked to the bowl pipe lever system by means of 'bowl lever and cistern lever connection line /rod(16).
  • the cistern is normally a rectangular tank which can hold water.
  • Cistern is provided with one cistern filling tap inlet (3a) to fill the cistern with enough water for flushing the bowl and water falls down in the cistern via cistern filling outlet (3d) and another 'cistern-bowl filling tap inlet' (3b) and in turn to the 'bowl water filling outlet (3c) by flowing in the reverse direction.
  • the 'bowl water filling outlet (3c) is further connected to cistern-bowl filling pipe line (4) and cistern-bowl flushing pipe line (5) for providing water for making the water seal in the bowl as shown in the Fig.6.
  • the cistern filling tap inlet (3a) is connected to the water pipe line (27a) which in turn is connected to main tap water pipe (27) and the cistern-bowl filling inlet (3b) is connected to the water pipe line (27b) which in turn is connected to main tap water pipe (27) as shown in Fig.3 for providing water supply from main water supply line.
  • the cistern is provided with a float (26) for maintaining a constant water level in the cistern and connected to water stopper 'on' or 'off valves (21 a) for filling the cistern and water stopper 'on' or 'off valve (21 b) for filling toilet bowl which has two functions, viz. a) open and close the cistern filling tap inlet (3a) for providing water required for flushing the bowl; b) open and close the cistern-bowl filling inlet (3b) and in turn the 'Bowl water filling outlet' (3c) for providing water for making the water seal in the bowel (6).
  • Cistern-bowl filling 'on' or 'off valve (21 b) which makes both the taps cistern filling tap inlet (3a) and , Cistern filling outlet (3d) open and allow water in to the cistern. Simultaneously it open cistern-bowl filling inlet (3b) and cistern-bowl filling outlet (3c) and allow water into the bowl since the cistern-bowl water filling outlet (3c) is connected to the bowl via by pass water bowl filling pipe line (4) from cistern after flushing the bowl and water pipe line (5) to bowl from cistern for flushing.
  • the float(26) comes back to its normal position on to the top surface of water and it now pushes both the stopper valves ( 21 a, 21 b) back into the cistern filling tap inlet (3a) and cistern-bowl filling inlet (3b) passages. These stopper valves now closes both the passages to stop filling the cistern and bowl for further usage.
  • the cistern-bowl filling inlet (3b) passage of cistern is smaller in diameter and it is made in such a way that this tap passage will be closed quite earlier than the cistern tap.
  • the cistern-bowl filling inlet (3b) is more extended in to the cistern so that whenever the valve actuator rod (22b) is pushed in to the tap passage, it closes the cistern-bowl filling inlet (3b) quite earlier than the 'cistern filling inlet' passage (3a).
  • the toilet bowl outlet drain pipe (8) is generally positioned horizontally and internally this pipe consists of two primary systems first the bowl lever (9) connected to it and second one the suction valve system as shown in Fig.5.
  • the lever system is used to control the entire toilet flushing mechanism and this lever is internally connected to the suction valve (1 1 ) through the bowl lever junction box (17) and suction valve box (12).
  • the bowl pipe junction box and the suction valve boxes are internally connected with each other by two rotating wheels viz. lever wheel (13) and the suction valve wheel(14) which are inter locked.
  • the suction valve (1 1 ) is thick, round sealing closure and flexible, preferably made of rubber in the shape of a cup matching with bowl end pipe outlet (7) and abuts the bowl end pipe as shown in Fig.1 , when it is in closed position forming water tight seal.
  • suction valve Whenever the lever (9) is lifted for flushing the toilet, the suction valve opens with full of suction force, breaking the suction bond between suction valve, water in the bowl and bowl pipe outlet. This method of breaking the suction bond causes a high pulling suction force and it forcibly pulls the waste from the toilet bowl into the horizontal drain pipe.
  • the suction valve abuts in the cavity of suction valve box(12) as shown in Fig.2 and allows a free passage for wastage in to the drain pipe (8) and then in to the waste management system. Whenever this suction valve abuts the bowl pipe outlet (7) it fully closes the opening. Whenever water enters at this closed end, it replaces all the air in the closed end of the bowl pipe.
  • suction bond The process of formation of this vacuum less system with water and suction valve forms a seal over the bowl pipe outlet is called as suction bond.
  • Flushing lever (9) is kept under tension by means of a spring arrangement 10) which is internally connected to the suction valve and the cistern lever through the junction box (17), so that the lever has to be lifted up to flush the toilet bowl.
  • the bowl lever junction box (17) interconnects the three sub systems viz. lever (9), suction valve (1 1 ) and the cistern lever(2) through the bowl & cistern lever' link line (16).
  • the bowl lever junction box (17) and the suction valve boxes (part 12) are internally connected with each other by two gear wheels, viz one known as junction box wheel (13) at junction box and second one the suction valve wheel (14).
  • the junction box wheel (13) is fixed on to the axis line (19) of the junction box which is externally connected to the lever and rotates according to the movements of the lever.
  • the suction wheel (14) is fixed on to the axis line (20) of the suction box which is externally interlocked with the junction box wheel and rotates according to the movements of the junction box wheel.
  • the suction valve(1 1 ) is connected to the axis line (20) of the suction valve box and whenever lever is applied, these two wheels moves clock and anti-clock wise rotations resulting to open or closure mechanism of the suction valve (1 1 a,1 1 b).
  • the bowl lever (9) is connected to axis line (19) of the junction box (17) which causes rotations according to the movements of the bowl lever.
  • the axis line (19) of the junction box contains an extension line (15) which goes up and down according to the movements of bowl lever (9). Said extension is connected the bowl lever-cistern link (16) as shown in the Fig 1 and 2 which is connected to the cistern lever (2a, 2b) via a junction box passage whole (18).
  • Method of flushing toilet system is lever controlled suction valve system along with controlled cistern flushing mechanism and is a two-step process
  • Step -1 Operations involved during flushing the wastage from toilet bowl as shown in Fig 7
  • Step -2 Operations involved just after flushing the wastage from toilet bowl as shown in Fig 8.
  • Step-1 The system as shown in Fig.1 is the condition when the toilet is ready to use with cistern filled with water, suction valve in the bowl is in closed position and bowl lever is in normal position.
  • the toilet bowl collects the wastage, which is ready for flushing out.
  • Step -2 After completion of flushing of waste from the toilet bowl the system as shown in Fig.2 is the condition when the toilet bowl is emptied out and the cistern is empty, suction valve in the bowl is in open position and Bowl lever is in normal position.
  • the cistern lever closes as the cistern which is needs to be filled with water.
  • the bowl-cistern tap also opens simultaneous to the opening of the cistern tap water valve and small quantity water started going into the bowl.
  • suction valve itself forms a complete suction system (bond) with-out any vacuum/ free air at the bowl end pipe down-stream with water and bowl pipe end walls.
  • Viz one for low water consumption and the other one for high water consumption to save some water. But, still this system is having some issues. Viz, If we press low water consumption button, it flushes total water from low flow-water tank. But, in some situations even this much water also may not be required. But there is no provision to stop flushing in between till low flow water tank flushes out completely. And the same thing may also happen when we use cistern with high water flow button. Further it is very difficult to predict how much water is required to flush the waste from the toilet. So, there is a confusion that which button to press, whether low water flow or high water flow button. But according to the present invention, when the bowl lever is operated it lifts the cistern lever and the flushing (water flow) starts.

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

Abstract

L'invention concerne un système de chasse d'eau de toilettes comprenant un système de soupape d'aspiration commandé par levier comprenant un mécanisme de chasse d'eau à réservoir commandé composé d'un réservoir de chasse d'eau automatique (1) raccordé à la cuvette de toilettes. La cuvette de toilettes (6) est raccordée à un tuyau horizontal (8) qui peut être raccordé à une fosse septique ou à une canalisation d'égout. Ledit tuyau horizontal est composé de trois sous-systèmes du type système de commande de levier à ressort, système de soupape d'aspiration (11a) et système de commande de réservoir automatisé qui sont raccordés entre eux. La cuvette de toilettes (9a) est raccordée au levier de réservoir (2a) par le biais d'une boîte de jonction de levier (17) et le mécanisme de chasse d'eau à réservoir automatisé est coordonné à un mécanisme d'ouverture et de fermeture de soupape d'aspiration. À chaque fois que le levier est actionné, il ouvre la soupape d'aspiration et la soupape de réservoir simultanément. L'un des avantages de la présente invention est que l'on peut arrêter la chasse d'eau en cours de route sans complètement vider l'eau du réservoir, ce qui permet d'économiser davantage d'eau par rapport aux systèmes selon l'état de la technique.
PCT/IB2015/052487 2014-04-15 2015-04-07 Système et procédé pour chasse d'eau de toilettes comprenant un système de soupape d'aspiration commandé par levier comprenant un mécanisme de chasse d'eau à réservoir commandé Ceased WO2015159180A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN1975/CHE/2014 2014-04-15
IN1975CH2014 2014-04-15

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WO2015159180A1 true WO2015159180A1 (fr) 2015-10-22

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111424773A (zh) * 2020-04-30 2020-07-17 武汉大学 一种基于环形射流引射作用的新型马桶
CN115404957A (zh) * 2022-09-29 2022-11-29 九牧厨卫德国有限公司 一种马桶装置、冲洗系统及其冲洗方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5177818A (en) * 1991-04-16 1993-01-12 Tsai Wei C Toilet-seat flush-valve operating device
CA2119475A1 (fr) * 1994-03-21 1995-09-22 Reginald Cormier Economiseur d'eau pour reservoir de toilette
CN2240554Y (zh) * 1995-08-28 1996-11-20 周学蒙 卫生间冲水水箱
WO1999040264A1 (fr) * 1998-02-05 1999-08-12 Bereznai Jozsef Ensemble citerne pour toilettes a chasse d'eau
US8185977B2 (en) * 2007-01-31 2012-05-29 Airbus Operations Gmbh System for flushing of a vacuum toilet in an aircraft

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5177818A (en) * 1991-04-16 1993-01-12 Tsai Wei C Toilet-seat flush-valve operating device
CA2119475A1 (fr) * 1994-03-21 1995-09-22 Reginald Cormier Economiseur d'eau pour reservoir de toilette
CN2240554Y (zh) * 1995-08-28 1996-11-20 周学蒙 卫生间冲水水箱
WO1999040264A1 (fr) * 1998-02-05 1999-08-12 Bereznai Jozsef Ensemble citerne pour toilettes a chasse d'eau
US8185977B2 (en) * 2007-01-31 2012-05-29 Airbus Operations Gmbh System for flushing of a vacuum toilet in an aircraft

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111424773A (zh) * 2020-04-30 2020-07-17 武汉大学 一种基于环形射流引射作用的新型马桶
CN115404957A (zh) * 2022-09-29 2022-11-29 九牧厨卫德国有限公司 一种马桶装置、冲洗系统及其冲洗方法

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