WO2019064282A1 - Low water usage flush toilet system and method of operation thereof - Google Patents

Low water usage flush toilet system and method of operation thereof Download PDF

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Publication number
WO2019064282A1
WO2019064282A1 PCT/IB2018/057596 IB2018057596W WO2019064282A1 WO 2019064282 A1 WO2019064282 A1 WO 2019064282A1 IB 2018057596 W IB2018057596 W IB 2018057596W WO 2019064282 A1 WO2019064282 A1 WO 2019064282A1
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WO
WIPO (PCT)
Prior art keywords
flush
water
drainpipe
toilet
bowl
Prior art date
Application number
PCT/IB2018/057596
Other languages
French (fr)
Inventor
Joseph Roman LOBO
Original Assignee
Lobo Joseph Roman
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
Application filed by Lobo Joseph Roman filed Critical Lobo Joseph Roman
Publication of WO2019064282A1 publication Critical patent/WO2019064282A1/en

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Classifications

    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03DWATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D5/00Special constructions of flushing devices, e.g. closed flushing system
    • E03D5/012Special constructions of flushing devices, e.g. closed flushing system combined with movable closure elements in the bowl outlet
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03DWATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D1/00Water flushing devices with cisterns ; Setting up a range of flushing devices or water-closets; Combinations of several flushing devices
    • E03D1/02High-level flushing systems
    • E03D1/14Cisterns discharging variable quantities of water also cisterns with bell siphons in combination with flushing valves

Definitions

  • the present disclosure in general relates to toilets or commodes, and more specifically relates to an improved flush toilet (interchangeably referred to as "commode") system and method that minimizes water usage and likelihood of drain and sewer blockages.
  • commode flush toilet
  • a toilet is a sanitation fixture used for the storing or disposal of human urine and feces.
  • Toilets can be with or without flushing water (flush toilet or dry toilet). They can be set up for a sitting posture or for a squatting posture (squat toilet).
  • Flush toilets are connected to a sewer system in most urban areas and to septic tanks in less built-up areas. In many countries, private homes are designed with the flush toilet and the bath or shower in the same room, the bathroom, to simplify plumbing and reduce cost. Other cultures find this insanitary, and have one room for body-washing and a separate room for excretion.
  • a toilet is a water-using appliance (also sometimes referred to as flush toilets) are so common that on average each household has more than one of them.
  • Flush toilets are in widespread use throughout the world for disposing of both fluid and solid waste.
  • water acts as a transport medium allowing wastage to travel through drainage pipe.
  • a flush toilet disposes of waste products by using water to send them through a drainpipe to another location. It is sometimes called a water closet, or WC.
  • the conventional flush toilet bowl usually has a ring-shaped seat on top, which is covered by the lid, a tank or cistern, and handle.
  • the handle'/button is pressed to flush the toilet.
  • the water used for flushing is stored in the tank (also called a cistern).
  • the tank contains some important parts such as an inlet valve controls the water supply coming into the tank, it lets water in when the tank is empty, and stops water coming in when the tank is full.
  • the "float ball" rises as the tank fills with water.
  • a float rod attached to it presses against the inlet valve. When the tank is full, the rod is pressing against the inlet valve hard enough to turn the water off. This stops the tank from overflowing.
  • dual flush toilet devices In efforts to alleviate the problems associated with simply reducing the water level every time a toilet is flushed, dual flush toilet devices have been designed. These toilets are selectively operated to use the full volume water available for solid waste disposal, and to use a lesser volume of water for liquid waste disposal.
  • United State Patent 3,906,554 discloses a dual-flush toilet that releases different amounts of flush water depending on whether solids or liquids are being flushed. More specifically, the dual-flush toilet is provided with separate handles for flushing the urinal and main bowls, each handle activating a different chain mechanism and cylindrical flush mechanism.
  • such dual-flush toilet also consumes lot of water for example, about 8-10 liters for a bigger flush and 4-5 liters for a smaller flush.
  • Pat. No. 5,175,893 disclose dual flush mechanisms.
  • flush valves are located at different heights on a discharge pipe inside the toilet tank.
  • One of these valves is located near the bottom of the holding tank; and the other valve is located at an intermediate position above the other or first of the valves.
  • the flapper valve located at the lowermost position is operated to discharge the full volume of water into the toilet bowl for effecting flushing of solid waste.
  • the upper flapper valve is opened.
  • the pressure available for affecting a partial flush is less than the pressure available for the full flush because of the location of the partial flush valve at a higher position within the tank.
  • the flushing action which takes place in the toilet bowl is not as vigorous for a partial flush as it is for a full flush because of this reduced pressure.
  • the numerical parameters set forth in the written description and attached claims are approximations that can vary depending upon the desired properties sought to be obtained by a particular embodiment.
  • the numerical parameters should be construed in light of the number of reported significant digits and by applying ordinary rounding techniques. Notwithstanding that the numerical ranges and parameters setting forth the broad scope of some embodiments of the invention are approximations; the numerical values set forth in the specific examples are reported as precisely as practicable. The numerical values presented in some embodiments of the invention may contain certain errors necessarily resulting from the standard deviation found in their respective testing measurements.
  • the present invention relates to a low water usage flush toilet system and method.
  • the 'S' or 'P' bend (having an approximately 'U' shape along a vertical plane and also referred to as P-bend herein) in the drainpipe at the bottom of existing toilets is designed to hold water thus preventing bad odors from the sewage pipes below from rising up into the toilet bowl.
  • the bend in the drainpipe also holds the waste matter which cannot flow out unless extra water with a good flow rate is flushed through the toilet thereby pushing out the waste. This leads to use of more water and wastage for pushing out the waste.
  • the present invention is directed towards a system and method of making the
  • P-bend of the drainpipe predominantly horizontal or sloping outwards and downwards at the beginning of or during the flushing process such that the waste material flows out of the toilet due to the force of gravity without requiring extra water flow to push it out, thereby saving water.
  • the P-bend shape of the drainpipe is restored and less quantity of water needs to be then used to flush and fill the P- bend and block the bad odors.
  • the flushing system and the drainpipe at the bottom of the toilet are linked to enable the P-bend of the drainpipe to be made predominantly horizontal or sloping outwards when the flushing process is initiated or activated.
  • the present disclosure pertains to a a flush toilet system comprising of: a toilet bowl with an opening in a lower part of the toilet bowl; a drainpipe connected to the opening in the lower part of the toilet bowl, wherein in a first state the drainpipe can have a shape that is predominantly U shaped along a vertical plane and in a second state the drainpipe can have a shape that is predominantly horizontal or sloping outwards and downwards; and a flush tank with a flushing mechanism which is linked to the drainpipe, such that on initiation or activation of the flushing mechanism the shape of the drainpipe can be converted from the first state to the second state and subsequently the shape of the drainpipe can be converted back to the first state.
  • the flushing mechanism is linked to the drainpipe through a linking mechanism comprising one or both of the following: one or more members wherein the members may be rigid or flexible, or an electronic or electrical or mechanical mechanism including a wired or wireless communication link.
  • the shape of the drainpipe is converted from the first state to the second state and back to the first state by one or more of moving, pulling, pushing, lowering, lifting, turning, rotating, twisting, stretching, compressing or any other shape changing action.
  • the flushing in the flush toilet system happens in two stages wherein in stage 1 the shape of the drainpipe is converted from the first state to the second state enabling the waste in the drainpipe to flow out and in stage 2 water in the flush tank is released to flush the toilet and fill the drainpipe to create a block for bad odors.
  • stage 2 for releasing water from the flush tank is delayed until the shape of the drainpipe is converted back from the second state to the first state.
  • the present invention is a method of flushing a toilet comprising the steps of: changing a shape of a drainpipe connected to the toilet from a first state wherein the drainpipe has a shape that is predominantly U shaped along a vertical plane to a second state wherein the drainpipe has a shape that is predominantly horizontal or sloping outwards and downwards, such that waste material in the drainpipe can flow out; changing back the shape of the drainpipe from the second state to the first state; and releasing water from a flush tank to flush the toilet and fill the predominantly U shaped drainpipe.
  • the step of releasing water from a flush tank is started before, during or after the step of changing back the shape of the drainpipe.
  • the present disclosure relates to a commode system comprising: a water inlet, a flush tank comprising a tubular protrusion, said flush tank being operatively coupled with at least one bowl; and a syphon pipe operatively coupled with one or more flush buttons, said one or more flush buttons being operatively connected to a movable T-shaped frame that is further operatively connected to a flexible drainpipe and passes through said tubular protrusion in a manner such that when any one of the one or more flush button is operated to flush water from the at least one bowl, the movable T-shaped frame mechanically moves in same direction as that of flush button so as to cause bend of the flexible drainpipe to temporarily straighten and cause the water from the bend to pass through the drainpipe, and to cause the flexible drainpipe to revert back to original bend shape after a pre-defined time period when the movable T-shaped frame moves back to original position.
  • the tubular protrusion is of a shape selected from any one of the one or more flush button is operated to flush water
  • the water inlet can be selected from any or a combination of a ball clock bottom inlet and a ball clock top.
  • height of said tubular protrusion when not depressed by lid of said flush tank, is greater than that of said flush tank.
  • the movable T-shaped frame is connected to one or more springs operatively connected to the one or more flush buttons.
  • the movable T-shaped frame comprises a head horizontal portion and an elongated vertical body portion, said vertical body portion passing through the tubular protrusion of the flush tank, and bottom part of said vertical body portion comprising a ring enclosing the flexible drainpipe.
  • the flush tank can be provided with a hole to enable upward and downward movement of the movable T-shaped frame in response to the operation of the one or more flush buttons.
  • the one or more flush buttons can be printed / embossed with S and L letters to identify the flush buttons, wherein the S letter is printed on the flush button to flush liquid waste, and the L letter is printed on the flush button to flush solid waste.
  • flushing mechanism can be linked to the drainpipe through a connecting pipe, wherein lower end of the connecting pipe comprises a mechanism for clasping the drainpipe, said mechanism comprising a plastic ring enclosing/holding the drainpipe that is connected to the connecting pipe to convert the shape of drainpipe.
  • the one or more flush buttons stay raised-up with the support of springs below them, based on which pipe of the T-shaped frame also stays raised up with the support of spring under its T head so as to enable the drainpipe also to stay in P-bend shape, there-by retaining required quantity of water in the commode.
  • FIG. 1 illustrates a conventional dual flush system as available in the prior-art.
  • FIG. 2 illustrates conventional commodes showing 'S' or 'P' bend as available in the prior-art.
  • FIG. 3 illustrates a proposed flush tank in proposed toilet system, in accordance with embodiments of the present disclosure.
  • FIGs. 4A-B illustrates proposed toilet systems when not in use, in accordance with embodiments of the present disclosure.
  • FIGs. 5 A-B illustrates proposed toilet systems when in use, in accordance with embodiments of the present disclosure.
  • FIGs. 6A-6N illustrate another exemplary embodiment of the present invention.
  • light be included or have a characteristic, that particular component or feature is not required to be included or have the characteristic.
  • Embodiments of the present disclosure relates to low flush toilet system (and particularly an ultra-low flush toilet system), which may at least partially overcome at least one of the abovementioned disadvantages or provide the consumer with a useful or commercial choice.
  • the present disclosure relates to a commode system comprising: a water inlet, a flush tank comprising a tubular protrusion, said flush tank being operatively coupled with at least one bowl; and a syphon pipe operatively coupled with one or more flush buttons, said one or more flush buttons being operatively connected to a movable T-shaped frame that is further operatively connected to a flexible drainpipe and passes through said tubular protrusion in a manner such that when any one of the one or more flush button is operated to flush water from the at least one bowl, the movable T-shaped frame mechanically moves in same direction as that of flush button so as to cause bend of the flexible drainpipe to temporarily straighten and cause the water from the bend to pass through the drainpipe, and to cause the flexible drainpipe to revert back to original bend shape after a pre-defined time period when the movable T-shaped frame moves back to original position.
  • the tubular protrusion is of a shape selected from any or a combination of a tube shaped lump, tube like protrusion, and cylindrical shape lump.
  • the water inlet can be selected from any or a combination of a ball clock bottom inlet and a ball clock top.
  • height of said tubular protrusion when not depressed by lid of said flush tank, is greater than that of said flush tank.
  • the movable T-shaped frame is connected to one or more springs operatively connected to the one or more flush buttons.
  • the movable T-shaped frame comprises a head horizontal portion and an elongated vertical body portion, said vertical body portion passing through the tubular protrusion of the flush tank, and bottom part of said vertical body portion comprising a ring enclosing the flexible drainpipe.
  • the flush tank can be provided with a hole to enable upward and downward movement of the movable T-shaped frame in response to the operation of the one or more flush buttons.
  • the one or more flush buttons can be printed / embossed with S and L letters to identify the flush buttons, wherein the S letter is printed on the flush button to flush liquid waste, and the L letter is printed on the flush button to flush solid waste.
  • flushing mechanism can be linked to the drainpipe through a connecting pipe, wherein lower end of the connecting pipe comprises a mechanism for clasping the drainpipe, said mechanism comprising a plastic ring enclosing/holding the drainpipe that is connected to the connecting pipe to convert the shape of drainpipe.
  • the one or more flush buttons stay raised-up with the support of springs below them, based on which pipe of the T-shaped frame also stays raised up with the support of spring under its T head so as to enable the drainpipe also to stay in P-bend shape, there-by retaining required quantity of water in the commode.
  • An aspect of the present disclosure relates to a toilet system having a flush tank enclosing syphon pipe and having one or more flush buttons operatively connected to a movable T-shaped frame which is further operatively connected to a drainpipe.
  • the present invention is a system and method of making the P-bend of the drainpipe predominantly horizontal or sloping outwards and downwards at the beginning of or during the flushing process such that the waste material flows out of the toilet due to the force of gravity without requiring extra water flow to push it out, thereby saving water.
  • the P-bend shape of the drainpipe is restored and less quantity of water needs to be used to flush and fill the P-bend and block the bad odors.
  • the flushing system and the drainpipe at the bottom of the toilet are linked to enable the P-bend of the drainpipe to be made predominantly horizontal or sloping outwards when the flushing process is initiated or activated.
  • the 'S' or 'P' bend (having an approximately 'U' shape along a vertical plane and also referred to as P-bend herein) in the drainpipe at the bottom of existing toilets is designed to hold water thus preventing bad odors from the sewage pipes below from rising up into the toilet bowl.
  • the bend in the drainpipe also holds the waste matter which cannot flow out unless extra water with a good flow rate is flushed through the toilet thereby pushing out the waste. This leads to use of more water and wastage for pushing out the waste.
  • Atoilet system that enables to utilize relatively low quantities of water, block the bad smell or odour that may originate from the sewage pipes down and which overcomes the disadvantages of the prior art, which is simple in construction, easy to install and simple to operate.
  • the present invention relates to a low water usage flush toilet system and method.
  • the present invention is a system and method of making the P-bend of the drainpipe predominantly horizontal or sloping outwards and downwards at the beginning of or during the flushing process such that the waste material flows out of the toilet due to the force of gravity without requiring extra water flow to push it out, thereby saving water.
  • the P-bend shape of the drainpipe is restored and less quantity of water needs to be used to flush and fill the P-bend and block the bad odors.
  • the flushing system and the drainpipe at the bottom of the toilet are linked to enable the P-bend of the drainpipe to be made predominantly horizontal or sloping outwards when the flushing process is initiated or activated.
  • the present invention is a flush toilet system comprising of: a toilet bowl with an opening at or near the bottom; a drainpipe connected to the opening at or near the bottom of the toilet bowl, wherein in a first state the drainpipe can have a shape that is predominantly U shaped along a vertical plane and in a second state the drainpipe can have a shape that is predominantly horizontal or sloping outwards and downwards; and a flush tank with a flushing mechanism which is linked to the drainpipe, such that on initiation or activation of the flushing mechanism the shape of the drainpipe can be converted from the first state to the second state and subsequently the shape of the drainpipe can be converted back to the first state.
  • the drainpipe in the flush toilet system is flexible and can be pulled up to make it predominantly horizontal and can be lowered to make it predominantly u shaped by using the flushing mechanism.
  • the flushing mechanism is linked to the drainpipe through a connecting pipe (flexible drain-side connecting pipe) and the lower end of the connecting pipe (flexible drain-side connecting pipe) has a mechanism for clasping the drainpipe.
  • the mechanism for clasping the drainpipe includes a plastic ring enclosing/holding the drainpipe that is connected to the connecting pipe to convert the shape of drainpipe.
  • the drainpipe in contrast to the conventional toilets where drainpipes are fixed or rigid, the drainpipe is made flexible (also interchangeably referred to as "movable") and is operatively movable by means of a flushing mechanism.
  • flushing mechanism includes a movable T-shaped frame passes through the syphon pipe and thereby through a tubular protrusion.
  • said movable T-shaped frame is connected to one or more springs operatively connected to the flush buttons.
  • said movable T-shaped frame is connected with one or more springs having one or more plastic rods operatively connected to the flush buttons.
  • said movable T-shaped frame includes a head portion (horizontal part) and an elongated body portion (vertical part).
  • the vertical part passes through the tubular protrusion in the flush tank.
  • a bottom part of the vertical part includes a ring enclosing/holding the drainpipe.
  • the drainpipe is connected to said flushing mechanism in such a manner that when a flush button is operated to flush the water from the bowl, the movable T- shaped frame connected to the flush button mechanically moves in same direction (downward) as that of flush button causing/forcing "S" or "P” bend of the drainpipe coupled to said movable T-shaped frame to straighten.
  • the flush tank is provide with a hole to enable upward and downward movement of said movable T-shaped frame in response to the operation of the flush button.
  • the flush tank includes a tubular protrusion to enable passage of said movable T-shaped frame and allow upward and downward movement of said movable T-shaped frame smoothly in response to the operation of the flush button.
  • said toilet system uses the flow of water on a flush to suck air from the cavity between the two traps, reducing the air pressure there to create the siphon which sucks water and waste from the toilet bowl. Towards the end of the flush the aspirator ceases being covered in water, thus allowing air into the cavity between traps to break the siphon without the noise while the final flush water fills the pan.
  • said toilet system work by the force of gravity and has no pressure assistance of any kind.
  • An aspect of the present disclosure relates to a flushing mechanism
  • connecting apparatus for making a connection between one or more flushing buttons which faces a floor surface and a flexible drainpipe which faces toward a bottom surface of a toilet stool at a floor position which is skewed from the floor position of said flushing buttons.
  • the connecting apparatus includes a T-Shaped frame having a horizontal first member and a vertical second member.
  • the horizontal first member is substantially perpendicular to the parallel first member.
  • the first member is provided at a flushing-side connecting pipe for connecting to flushing buttons, and said second member for connecting to a connecting pipe (flexible drain-side connecting pipe) for connecting to flexible drainpipe.
  • the flexible drainpipe is capable of moving with at least an operation of said flushing ports.
  • the flushing mechanism is linked to the drainpipe through a connecting pipe (flexible drain-side connecting pipe) and the lower end of the connecting pipe (flexible drain-side connecting pipe) has a mechanism for clasping the drainpipe.
  • a method or process for making/ converting the P-bend of the drainpipe predominantly horizontal or sloping outwards and downwards at the beginning of or during the flushing process can include the following steps: initiate or activate a flushing mechanism by operating the flush buttons wherein a flush tank with the flushing mechanism which is linked to a drainpipe; during the flushing process such that a waste material flows out of the toilet due to the force of gravity without requiring extra water flow to push it out, thereby saving water and the P-bend shape of the drainpipe is restored and less quantity of water needs to be used to flush and fill the P-bend and block the bad odors after most or all of the waste has flowed out of the toilet the due to the flushing mechanism that converts the shape of the drainpipe from a first state to a second state wherein the first state of the drainpipe can have a shape that is predominantly U shaped along a vertical plane and in the second state of the drainpipe can have a shape that is predominantly horizontal or sloping outward
  • said toilet system can be an aspirator that uses the flow of water on a flush to suck air from the cavity between the two traps, reducing the air pressure there to create the siphon which sucks water and waste from the toilet bowl.
  • the aspirator Towards the end of the flush the aspirator ceases being covered in water, thus allowing air into the cavity between traps to break the siphon without the noise while the final flush water fills the pan.
  • said toilet system work by the force of gravity and has no pressure assistance of any kind.
  • toilet system that works by the force of gravity
  • the flush lever inside the tank attached to a lift chain lifts up a flapper valve at the bottom of the tank, allowing water to rush down through the flush opening and into the toilet bowl.
  • the forceful action of the water is what forces waste in the toilet bowl down into the toilet trap and into the house drain system and from there out to the sewer lines.
  • the flush valve sometimes called a ballcock
  • An aspect of the present disclosure relates to a connecting apparatus for making a connection between one or more flushing buttons which faces a floor surface and a flexible drainpipe which faces toward a bottom surface of a toilet stool at a floor position which is skewed from the floor position of said flushing buttons.
  • the toilet may be of any suitable form, and the exact nature of the toilet is not critical to the invention.
  • the toilet comprises a cistern and a bowl in fluid communication with one another.
  • the toilet is a low flush toilet.
  • the term "low flush toilet” refers to a toilet in which reduced quantities of water are used when flushing the toilet. While the exact quantities of water required to flush a "low flush toilet” are not critical, it is envisaged that a "low flush toilet” is one in which approximately 3 liters of water are used for a full flush, and approximately 2 liters of water are used for a half flush.
  • the toilet may be an ultra-low flush toilet.
  • ultra-low flush toilet refers to a toilet in which the quantities of water used when flushing the toilet are lower than those used in a low flush toilet. While the exact quantities of water required to flush an "ultra-low flush toilet” are not critical, it is envisaged that an “ultra-low flush toilet” is one in which approximately 3 liters of water are used for a full flush, and approximately 2 liters of water are used for a half flush.
  • the toilet bowl will further include a rim, and a skilled addressee will understand that the rim of the toilet bowl will be adapted to direct water from the cistern into the bowl when the toilet is flushed.
  • a toilet rim comprises a channel extending substantially entirely around the entire circumference of the toilet bowl, allowing water from the cistern to enter the bowl around the entire circumference of the bowl.
  • providing an ultra-low flush toilet may also be achieved through the use of a rim adapted to increase the efficiency with which the toilet is flushed by directing water from the cistern to specific areas within the bowl, meaning that less water is required to flush the toilet.
  • the toilet outlet may be of any suitable form.
  • the toilet outlet is associated with the toilet bowl.
  • the toilet outlet is connected to one or more toilet outlet conduits (such as pipes or channels) that direct waste material away from the toilet bowl upon flushing of the toilet.
  • the toilet outlet conduit may be connected directly to the waste material collection vessel or may be connected to the waste material collection vessel by one or more intermediate conduits.
  • the toilet outlet conduit may be of any suitable form, and may include a conduit having a tortuous path, including a water trap (such as an S-bend, P- trap or the like, or a combination thereof).
  • the outlet conduit may not have a tortuous path, and may comprise a substantially straight or curved section of pipe.
  • FIG. 1 illustrates a conventional dual-flushsystem as available in the prior-art.
  • the conventional dual-flush toilet is a variation of the flush toilet that uses two buttons or handles to flush different levels of water.
  • the conventional dual -flush toilet includes the water tank, ball-cock, and siphon with plunger plate and chamber whereas the siphon in the flush tank is used to supply the water to the bowl or commode.
  • the conventional dual flush toilet includes two flush mechanisms normally two buttons located on the top of the tank instead of a lever.
  • One flush button engages a flush using less water (about 3 litters) that's meant only for liquid waste, while the other flush button engages a flush using large water (about 6 litters) meant for solid waste.
  • the conventional dual-flush toilet system can include one or two flush buttons
  • a dual flash valve 110 which can be pre-stetted and pre-defined for smaller and larger quantities of water discharge.
  • a drainage pipe can have shape as P-bend or fixed bend due to which the water can be flushed in larger quantity such as 4 to 8 litters from the flush tank after pressing the flush button.
  • the conventional dual flush toilet includes two different buttons which are housed within the tank lid, attached to 'actuator rods', which engage the flush valve 112 on being pushed.
  • the smaller or 104-A press down then a shorter rod press by the dual flush valve 110 only for a short period and flushes the water up to minimum quantity such as 3 litters.
  • the large button or 104-B press down then another rod press by the dual flush valve 110 only for a short period and flushes the water up to large quantity such as 6 litters.
  • FIG. 2 illustrates conventional commodes showing 'S' or 'P' bend as available in the prior-art.
  • FIG. 2 illustrates two in one western cum Indian commodes (left) and western commodes (right) which can include a dual discharge flush system as discussed in FIG. 1.
  • the one western cum Indian commodes (left) and western commodes (right) includes a P-bend holding water level inside commode which restrict behind the remains of the toilet at the bottom of the toilet bowl thereby prohibiting bad odor or smell.
  • FIG. 3 illustrates a proposed flush tank for commode system in accordance with embodiments of the present disclosure.
  • the flush tank 302 according to the present disclosure can be a modified flush tank 302 provided with a tubular protrusion 304.
  • the flush tank can have liquid capacity of about 2-10 liters and the flush tank liquid capacity can be varied as per manufacturing of the flush tank 302.
  • the tubular protrusion 304 can be tube shaped lump or tube like protrusion or cylindrical shape lump.
  • the tubular protrusion or tube shaped pipe 304 and the flush tank 302 and the commode/ bowl can have different dimensions (height, length, and width), size and shape while manufacturing the system and as per the requirements.
  • the tubular protrusion or tube shaped pipe 304 can have dimension as 15 cm diameter and height is 1 cm more than the flush tank height without lid starting from the bottom of flush tank, going upwards and open in both sides. Height of the flush tank is 30 cm (because if it is made shorter, the water filled in flush tank, may flow out through this protrusion).
  • FIGs. 4A-B illustrates proposed toilet systems when not in use, in accordance with embodiments of the present disclosure.
  • FIG. 4A illustrates the improved commode system (western toilet) when not in use in accordance with embodiments of the present disclosure.
  • FIG. 4B illustrates the improved toilet system (Indian/eastern toilet) when not in use in accordance with embodiments of the present disclosure.
  • the improved commode system at least include a flush tank, a syphon pipe, a ball clock bottom inlet type or ball clock top inlet type, a bowl or commode, a drainage pipe.
  • the improved commode system includes a flush tank 302, a syphon pipe 306 with a dual flush buttons 310, 312, a ball clock bottom 106 (water inlet from bottom) and a ball clock top 108(water inlet from top), a syphon pipe 306.
  • flush tank 302 can be of about 6 liters capacity necessary.
  • This flush tank has a tubular protrusion 304 preferably 15 cm diameter and height is 1 cm more than the flush tank height without lid starting from the bottom of flush tank, going upwards and opens in both sides. Height of the flush tank is preferably 30 cm (because if it is made shorter, the water filled in flush tank, may flow out through this protrusion).. .
  • the tubular protrusion or tube shaped pipe 304 and the flush tank 302 dimensions can vary while manufacturing the system.
  • a standard syphon pipe 306 with dual flush buttons 310, 312 are installed at the center-back of the flush tank 302.
  • a ball clock bottom 106 water inlet from bottom
  • a ball clock top 108 water inlet from top
  • the commode system includes a flush tank 302 enclosing syphon pipe 306, ball cock 106, 108, and having one or more flush buttons 310, 312 operatively connected to a movable T-shaped frame 318 which is further operatively connected to a flexible (also interchangeably referred to as "movable") drainpipe 324.
  • a flush tank 302 enclosing syphon pipe 306, ball cock 106, 108, and having one or more flush buttons 310, 312 operatively connected to a movable T-shaped frame 318 which is further operatively connected to a flexible (also interchangeably referred to as "movable") drainpipe 324.
  • said movable T-shaped frame 318 passes through the syphon pipe 306 and thereby through a tubular protrusion 304.
  • said movable T-shaped frame 318 is connected to one or more springs 308, 316 operatively connected to the flush buttons 310, 312. In another aspect, said movable T-shaped frame 318 is connected with one or more springs 308, 316 having one or more plastic rods operatively connected to the flush buttons 310, 312.
  • said movable T-shaped frame 318 includes a head portion (horizontal part) and an elongated body portion (vertical part).
  • the vertical part passes through the tubular protrusion 304 of the flush tank 302.
  • a bottom part of the vertical part includes a ring 322 enclosing the flexible drainpipe 324.
  • the flexible drainpipe 324 is connected to said movable T-shaped frame 318 in such a manner that when any one of the flush button 310, 312 is operated to flush the water from the bowl 320, the movable T-shaped frame 318 connected to the flush button 310, 312 mechanically moves in same direction (i.e., downward) as that of flush button 310, 312 causing/forcing "S" or "P” bend of the flexible drainpipe 324 coupled to said movable T-shaped frame 318 to straighten and causing the water 326 from the "S" or "P” bend passing through the drainpipe 324.
  • the flush tank 302 is provided with a hole to enable upward and downward movement of said movable T-shaped frame 318 in response to the operation of the flush button 310, 312.
  • the flush tank 302 includes the tubular protrusion 304 to enable passage of said movable T-shaped frame 318 and allow upward and downward movement of said movable T-shaped frame 318 smoothly in response to the operation of the flush button 310, 312.
  • the syphon pipe 306 can have a connecting apparatus for making connection between one or more bowl 320 or commode 320 which faces a floor surface and the drainage pipe 324.
  • the dual flush buttons 310, 312 can be used to flush a liquid waste and solid waste respectively.
  • the flush buttons such as 310, 312 can be printed / embossed with S and L letters to identify the flush buttons 310, 312 for different purposes.
  • S may be printed on the flush button to flush liquid waste
  • L may be printed on the flush button to flush solid waste.
  • the syphon pipe 306 can be provided with dual flush buttons 310, 312 which can be installed at the centre-back of the flush tank 302.
  • the syphon pipe 306 can be connected with the flush tank 302 and the commode or bowl 320.
  • a ball clock bottom 106 water inlet from bottom
  • a ball clock top 108 water inlet from top
  • the ball cock also sometimes referred to as ball tap or float valve
  • top inlet 106 and bottom inlet 108 ballcock is a mechanism or machine for filling water tanks, such as those found in conventional flush tanks, while avoiding overflow and (in the event of low water pressure) backflow.
  • the commode system can include a connecting apparatus having a T-shaped frame 318, springs 308, 316, and a chair-shaped plastic rod (not numbered).
  • the connecting apparatus can be attached to the bowl or commode 320 and the drainpipe 324.
  • a 10mm diameter plastic pipe with a T-shaped frame 318 can be installed by the support of a 12mm spring 314.
  • the plastic pipe with T-shaped frame 318 is about 120cm long and this pipe can pass through the tubular protrusion 304 in the flush tank 302.
  • a 2mm thick and 20mm broad a plastic ring 322 of 50mm diameter is attached.
  • the drainpipe or drainpipe 324 can preferably have dimensions such as 7.5cm in diameter and 80 cm long.
  • the one side of the drainpipe or the drainpipe 324 can be attached to the commode outlet and it passes through the plastic ring 322 and another side of the drainpipe or drainpipe 324 can be attached to the sewage pipe opening.
  • the drainpipe 324 in the flush toilet system is flexible and can be pulled up to make it predominantly horizontal and can be lowered to make it predominantly u shaped by using a flushing mechanism.
  • the flushing mechanism is linked to the drainpipe 324 through a connecting pipe (flexible drain-side connecting pipe) and the lower end of the connecting pipe (flexible drain-side connecting pipe) has a mechanism for clasping the drainpipe.
  • the mechanism for clasping the drainpipe includes a plastic ring 322 enclosing/holding the drainpipe that is connected to the connecting pipe to convert the shape of drainpipe 324.
  • the pipe (vertical portion) of the T-shaped frame 318 also stays raised up with the support of spring under its T head. Consequent to T- shaped frame 318, the drainpipe 324 also stays in P-bend shape there-by retaining required quantity of water in the commode. About 1.5 liters of water is retained in the commode and the P-bend of flexi pipe at this stage.
  • FIGs. 5 A-B illustrates exemplary working of the improved commode system in accordance with embodiments of the present disclosure.
  • FIG. 5A illustrates operation of the improved commode system when a flush button 310 dedicated for liquid waste (printed /embossed with letter S) is pressed
  • FIG. 5B illustrates operation of the improved commode system when a flush button 312 dedicated for solid waste (printed /embossed with letter L) is pressed.
  • this releasing of water can be set about 3-4 seconds delay, so that only about half liter water flows out the drainpipe and balance of 1.5 liter stays in the commode and drainpipe.
  • the flush button 310 simultaneously presses down the T pipe 318 which in turn press down the drainpipe 324 and straighten it. Due to straightening of the drainpipe 324, the liquid waste which is in the commode 320 flows down the drainpipe 324 and into the sewage pipe.
  • T pipe 318 comes to its normal raised position which in turn raises the drainpipe 324 to its P-bend position.
  • water released from the flush tank 302 stays in the commode 320 and the P-bend.
  • the flush button 312 presses down the spring 316 under it and that in turn presses the flush button 312 under it and due to this, 3 litres of water is released from flush tank 302 to commode 320.
  • this releasing of water can be set with about 3-4 seconds delayed, so that only about 1.5 litre water flows out the drainpipe 324 and balance of 1.5 litre stays in the commode 320 and drainpipe 324.
  • the flush button 312 simultaneously presses down the T pipe 318 which in turn press down the drainpipe 324 and straighten it. Due to straightening of the drainpipe 324, the solid waste which is in the commode 320 flows down the drainpipe 324 and into the sewage pipe.
  • T pipe 318 comes to its normal raised position which in turn raises the drainpipe 324 to its P-bend position.
  • water released from the flush tank 302 stays in the commode 320 and the P-bend.
  • the commode system comprising of the toilet bowl 320 with an opening at or near the bottom and the drainpipe 324 connected to the opening at or near the bottom of the toilet bowl 320, wherein in a first state the drainpipe can have a shape that is predominantly U shaped along a vertical plane (which is shown in fig 4A and 4B) and in a second state the drainpipe can have a shape that is predominantly horizontal or sloping outwards and downwards (which is shown in fig 5A and 5B); and the flush tank 320 with a flushing mechanism which is linked to the drainpipe, such that on initiation or activation of the flushing mechanism the shape of the drainpipe 324 can be converted from the first state to the second state and subsequently the shape of the drainpipe can be converted back to the first state.
  • the implementation of the proposed improved toilet system by the implementation of the proposed improved toilet system, approximately only 2 liters of water is required for flushing out liquid waste and 3 liters for flushing out solid waste is required. This is, by far the lowest water used for flushing. Presently the lowest in the market is 3 liters and 6 liters in dual system and 8 liters in singular system. Thus, the implementation of the proposed improved toilet system can reduce the water usage to about half of minimum one in the market due to the inclusion of modified P-bend or flexible drain pipe.
  • FIGs. 6A-6N illustrate another exemplary embodiment of the present invention.
  • the proposed system can include a flush tank 602 having a long tubular protrusion 604 (for instance, at right-front side in an exemplary embodiment).
  • the tubular protrusion can be of a size of around 15-25 cm in length and around 15-30 cm in diameter.
  • the protrusion 604 can be open on both ends:
  • the flush tank can be configured to store, for instance, 6-10 Litres of water.
  • FIG. 6B illustrates a standard flush system
  • FIG. 6C illustrates the apparatus of Low Water Flushing system.
  • FIG. 6D illustrates ccommode designed with outlet much lower than commodes and without in-built S or P bend.
  • FIG. 6E illustrates the flexible pipe
  • FIG. 6F illustrates ball cock bottom inlet type
  • FIG. 6G illustrate top inlet type.
  • the tubular protrusion starts from center-front of the base and goes upwards and is open from both sides.
  • the proposed flushing system can include dual discharge buttons/flush buttons (marked here as S & L) and can, for instance, be installed at the center-left of the flush tank.
  • S button can be preset for discharge of only, for instance, around 1 liter of water
  • button L can be preset for only 2 liters, for instance (these are completely non-limiting examples).
  • L button here can be closed and can be made inactive for use because there doesn't arise a need to press it from.
  • the proposed apparatus can be mounted on a thick moulded plastic plate 606 of rectangle shape fixed to front and back walls of flush tank from inside.
  • This plastic plate can include 3 holes (only exemplary embodiment), one being in the center and two on the left and right sides. This plate can be fixed to the top end of the tubular protrusion through the center hole.
  • a hard plastic tube 608 can be inserted through the tubular protrusion, wherein at the lower end of this tube, one plastic ring 610 can be fixed and a flexible pipe 612 (for instance, of about 10 cm diameter and 80 cms long) can be inserted through this ring.
  • one end of the flexible pipe 612 can be fixed to the commode outlet 614, and another end is fixed to sewage outlet of the wash-room where the commode is installed.
  • a spring 616 (for instance, of about 15 cm diameter and 25 cms height (extended)) can be inserted through the top end of the plastic tube 608 so as to sit on the rectangle plastic plate fixed in the flush tank.
  • another/second plastic plate of oval shape 618 can be fixed, which second plastic plate 618 can have 3 holes (for instance), one being in the center (for instance, of about 12mm diameter), and two holes (of, for instance, about 10mm diameter) on either side.
  • This second plastic plate 618 can be fixed tight with a plastic head 620 to the top end of the plastic tube 608. Furthermore, Two plastic rods (for instance, of about 7mm diameter and 40cm length) with a handle type shape at the top are inserted through the side hole of both the plastic plates 606 and 618. These rods can include a ring shaped thick protrusion down from the top. These rods can be inserted through 2 side holes of both the plastic plates, wherein they go down their length when inserted as the ring shaped protrusion is stopping them to descend further.
  • the proposed commode can have no built-in or attached P-bend. Also its outlet is at the lower edge can be lower than the conventional commodes.
  • the flexible pipe 612 can be a spiral pipe, wherein one side of it can be attached to the commode outlet and it passes through the apparatus ring 610 mentioned above. Another side of the spiral pipe can be attached to the sewage pipe opening.
  • the a ball cock either top-inlet type or bottom inlet type can be installed inside the flush tank for control of water flow.
  • the proposed system can have 2 ropes 622/624 that connect Flush System to the proposed apparatus, more specifically ' S' Button/Lever of flush system to No. 1 handle of apparatus, pushing of which 1 liter water is discharged & 'L' button of flush system to No. 2 handle of apparatus, pushing of which, 2 liter water is discharged.
  • handle marked 700 can be pressed down (and held for 3-4 seconds), which in turn can presses down the oval plate 618, and consequently the plastic pipe 608 presses down the flexible pipe 612 and straightens it.
  • liquid waste collected at the base of the bowl flows out along with 1 liter water that is already there in the bowl.
  • Pressing down the Handle 702 creates a simultaneous action where while pressing down the flexible pipe 612 and straitening it, handle 700 also pulls down the lever of first button 800 from inside through the rope 624 attached from handle 700 to button lever from inside. Notice in FIG. 61, the rope 624 is pulled down and has become straight.
  • Handle/Lever 702 can be pulled down and T-jack 626 can be pushed-up and this in turn can pull up the rod of syphon pump 628 and hence 2 litres of water can be released.
  • This water is necessary for cleaning the inner walls of the bowl. This water too gets discharged behind the liquid waste along with 1 litre water which is there in the bowl because flexible pipe is still straight as the Handle 702 is held down for 3-4 seconds.
  • This holding down of flexible pipe 612 is necessary for flowing out the water just released from flush tank above. Once this water is flushed out, handle could be released.
  • handle 702 should be pushed. That in turn presses down the oval plate 618 and consequently plastic pipe 608 presses down the flexible pipe 612 and straightens it.
  • Lever 2 of button 802 is pulled down and T-jack 5a is pushed-up and this in turn has pulled up the rod of syphon pump 628 and hence 2 litres of water is released.
  • This water is necessary for cleaning inner walls of the bowl.
  • This 2L water too gets discharged behind the solid waste and 1L water which is there in the bowl because flexible pipe is straight still as the Handle 2 is held down for 3-4 seconds.
  • This holding down of flexible pipe (21) is necessary for flowing out the water just released from flush tank above. Once this water is flushed out, handle could be released.
  • the user should press the button 1 which releases 1L water again which will be retained in the base of the bowl.
  • This 2 step action of pressing down the Handle 1 and holding it down for 3-4 seconds has become necessary because, otherwise the flexible pipe rises immediately before all the solid waste is flowed out.
  • This system could be adapted to Indian/squat type toilets by creating a chamber for flexible pipe as shown in FIG. 6L.
  • the present disclosure provides an improved commode system having low water usage.
  • the present disclosure provides the improved commode system with a flushing mechanism which supports in movement of a flexible drainpipe which uses less water than conventional toilet.

Abstract

The present disclosure relates to a commode system comprising: a water inlet, a flush tank comprising a tubular protrusion, said flush tank being operatively coupled with at least one bowl; and a syphon pipe operatively coupled with one or more flush buttons, said one or more flush buttons being operatively connected to a movable T-shaped frame that is further operatively connected to a flexible drainpipe and passes through said tubular protrusion in a manner such that when any one of the one or more flush button is operated to flush water from the at least one bowl, the movable T-shaped frame mechanically moves in same direction as that of flush button so as to cause bend of the flexible drainpipe to temporarily straighten and cause the water from the bend to pass through the drainpipe.

Description

LOW WATER USAGE FLUSH TOILET SYSTEM AND METHOD OF OPERATION
THEREOF
TECHNICAL FIELD
[0001] The present disclosure in general relates to toilets or commodes, and more specifically relates to an improved flush toilet (interchangeably referred to as "commode") system and method that minimizes water usage and likelihood of drain and sewer blockages.
BACKGROUND OF THE INVENTION
[0002] Background description includes information that may be useful in understanding the present invention. It is not an admission that any of the information provided herein is prior art or relevant to the presently claimed invention, or that any publication specifically or implicitly referenced is prior art.
[0003] As conventionally know a toilet is a sanitation fixture used for the storing or disposal of human urine and feces. Toilets can be with or without flushing water (flush toilet or dry toilet). They can be set up for a sitting posture or for a squatting posture (squat toilet). Flush toilets are connected to a sewer system in most urban areas and to septic tanks in less built-up areas. In many countries, private homes are designed with the flush toilet and the bath or shower in the same room, the bathroom, to simplify plumbing and reduce cost. Other cultures find this insanitary, and have one room for body-washing and a separate room for excretion. Public toilets are installed where their use is expected on a permanent basis, while portable toilets or chemical toilets may be brought in for large but temporary gatherings. In many developing countries, especially in rural areas, dry toilets such as pit latrines and composting toilets remain common. Dry toilets are usually placed in outhouses, i.e. not inside the dwelling, and should be located away from sources of drinking and bathing water.
[0004] Normally, a toilet is a water-using appliance (also sometimes referred to as flush toilets) are so common that on average each household has more than one of them. Flush toilets are in widespread use throughout the world for disposing of both fluid and solid waste. One of the major reasons due to which large amount of water is used in toilet is that water acts as a transport medium allowing wastage to travel through drainage pipe. A flush toilet disposes of waste products by using water to send them through a drainpipe to another location. It is sometimes called a water closet, or WC.
[0005] The conventional flush toilet bowl usually has a ring-shaped seat on top, which is covered by the lid, a tank or cistern, and handle. The handle'/button, is pressed to flush the toilet. The water used for flushing is stored in the tank (also called a cistern). The tank contains some important parts such as an inlet valve controls the water supply coming into the tank, it lets water in when the tank is empty, and stops water coming in when the tank is full. The "float ball" rises as the tank fills with water. As it rises, a float rod attached to it presses against the inlet valve. When the tank is full, the rod is pressing against the inlet valve hard enough to turn the water off. This stops the tank from overflowing. When person press the handle or flush button, a lever inside the tank pulls the piston up, forcing some water through the siphon. This provides suction in the siphon, and the rest of the water within the siphon 'U' tube follows. The piston is usually covered by a plastic membrane, which is constructed to be "sucked" out of the way by the emptying siphon tube water, allowing the rest of the water in the tank to rush past the piston, and over the top of the siphon, emptying the rest of the tank. The piston membrane then drops back onto the piston, ready for the next flush operation. The tank empties quite quickly, and the float ball floats to the bottom. That means the float rod is no longer pressing against the valve, so water begins to flow into the tank, filling it up again. The water which left the tank goes through a short pipe to the toilet bowl. It sloshes around the rim, down the sides of the bowl, and out through the drainpipe, cleaning the bowl and carrying the waste with it.
[0006] Some of the clean water coming behind remains at the bottom of the toilet bowl. That is because the drainpipe of modern toilets have an ' S' or 'P' bend which remains filled with water between flushing. The water in the 'S' or 'P' bend stops bad odors escaping from the drainpipe (that may originate from the sewage pipes down). During flushing the ' S' or 'P' bend also provides siphon action which helps speed up the flushing process. However, a large quantity of water, preferably 4-10 liters, is required to flush the toilet, and so millions of liters of water are wasted on daily basis. If this hump (' S' or 'P' bend) is removed and discharge pipe is made straight, the toilet can be flushed with minimal quantity of water. However, then the problem of bad smell still persists. .
[0007] In recent times, an increasing awareness of the water conservation has led to attempts to reduce the amount of water used when flushing toilets. Nowadays water is becoming rare and more valuable resource and hence society is being pressured to develop methods and devices that support water conservation. Because the above-recognized issues, a need to conserve water has created a market for new and water conserving toilets.
[0008] In efforts to alleviate the problems associated with simply reducing the water level every time a toilet is flushed, dual flush toilet devices have been designed. These toilets are selectively operated to use the full volume water available for solid waste disposal, and to use a lesser volume of water for liquid waste disposal. For example, United State Patent 3,906,554 discloses a dual-flush toilet that releases different amounts of flush water depending on whether solids or liquids are being flushed. More specifically, the dual-flush toilet is provided with separate handles for flushing the urinal and main bowls, each handle activating a different chain mechanism and cylindrical flush mechanism. However, such dual-flush toilet also consumes lot of water for example, about 8-10 liters for a bigger flush and 4-5 liters for a smaller flush.
[0009] Two United States patents, Pozo U.S. Pat. No. 4,172,299 and Navarrette U.S.
Pat. No. 5,175,893, disclose dual flush mechanisms. In the devices of both of these patents, flush valves are located at different heights on a discharge pipe inside the toilet tank. One of these valves is located near the bottom of the holding tank; and the other valve is located at an intermediate position above the other or first of the valves. When a full flush is desired, the flapper valve located at the lowermost position is operated to discharge the full volume of water into the toilet bowl for effecting flushing of solid waste. When a partial flush, for disposing of fluid waste only, is desired, the upper flapper valve is opened. Thus, less water is required to affect a flush, since the upper valve closes before the water level in the tank drops to the bottom of the tank. The pressure available for affecting a partial flush, however, is less than the pressure available for the full flush because of the location of the partial flush valve at a higher position within the tank. As a consequence, the flushing action which takes place in the toilet bowl is not as vigorous for a partial flush as it is for a full flush because of this reduced pressure.
[0010] Thus, there would be an advantage, therefore, if it were possible to provide a toilet system that enables to utilize relatively low quantities of water, block the bad smell or odour that may originate from the sewage pipes down and which overcomes the disadvantages of the prior art, which is simple in construction, easy to install and simple to operate.
[0011] As used in the description herein and throughout the claims that follow, the meaning of "a," "an," and "the" includes plural reference unless the context clearly dictates otherwise. Also, as used in the description herein, the meaning of "in" includes "in" and "on" unless the context clearly dictates otherwise.
[0012] In some embodiments, the numerical parameters set forth in the written description and attached claims are approximations that can vary depending upon the desired properties sought to be obtained by a particular embodiment. In some embodiments, the numerical parameters should be construed in light of the number of reported significant digits and by applying ordinary rounding techniques. Notwithstanding that the numerical ranges and parameters setting forth the broad scope of some embodiments of the invention are approximations; the numerical values set forth in the specific examples are reported as precisely as practicable. The numerical values presented in some embodiments of the invention may contain certain errors necessarily resulting from the standard deviation found in their respective testing measurements.
[0013] The recitation of ranges of values herein is merely intended to serve as a shorthand method of referring individually to each separate value falling within the range. Unless otherwise indicated herein, each individual value is incorporated into the specification as if it were individually recited herein. All methods described herein can be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context. The use of any and all examples, or exemplary language (e.g. "such as") provided with respect to certain embodiments herein is intended merely to better illuminate the invention and does not pose a limitation on the scope of the invention otherwise claimed. No language in the specification should be construed as indicating any non-claimed element essential to the practice of the invention.
[0014] Groupings of alternative elements or embodiments of the invention disclosed herein are not to be construed as limitations. Each group member can be referred to and claimed individually or in any combination with other members of the group or other elements found herein. One or more members of a group can be included in, or deleted from, a group for reasons of convenience and/or patentability. When any such inclusion or deletion occurs, the specification is herein deemed to contain the group as modified thus fulfilling the written description of all groups used in the appended claims.
OBJECTS OF THE INVENTION
[0015] It is a general object of the present disclosure to provide a toilet system that uses relatively low quantities of water, block the bad smell or odour that may originate from the sewage pipes down and which overcomes the disadvantages of the prior art, which is simple in construction, easy to install and simple to operate.
[0016] It is another object of the present disclosure to provide a toilet system that includes a flexible/movable drainpipe.
[0017] It is another object of the present disclosure to provide a toilet system with an apparatus/tool that supports in movement of a flexible drainpipe which enables to use appreciably less water than conventional toilet. SUMMARY
[0018] This summary is provided to introduce concepts related to improved low water usage flush toilet system and the concepts are further described below in the detailed description. This summary is not intended to identify essential features of the subject matter nor is it intended for use in determining or limiting the scope of the subject matter.
[0019] The present invention relates to a low water usage flush toilet system and method.
[0020] The 'S' or 'P' bend (having an approximately 'U' shape along a vertical plane and also referred to as P-bend herein) in the drainpipe at the bottom of existing toilets is designed to hold water thus preventing bad odors from the sewage pipes below from rising up into the toilet bowl. However, while the toilet is being used, the bend in the drainpipe also holds the waste matter which cannot flow out unless extra water with a good flow rate is flushed through the toilet thereby pushing out the waste. This leads to use of more water and wastage for pushing out the waste.
[0021] The present invention is directed towards a system and method of making the
P-bend of the drainpipe predominantly horizontal or sloping outwards and downwards at the beginning of or during the flushing process such that the waste material flows out of the toilet due to the force of gravity without requiring extra water flow to push it out, thereby saving water. After most or all of the waste has flowed out of the toilet, the P-bend shape of the drainpipe is restored and less quantity of water needs to be then used to flush and fill the P- bend and block the bad odors. The flushing system and the drainpipe at the bottom of the toilet are linked to enable the P-bend of the drainpipe to be made predominantly horizontal or sloping outwards when the flushing process is initiated or activated.
[0022] In one aspect, the present disclosure pertains to a a flush toilet system comprising of: a toilet bowl with an opening in a lower part of the toilet bowl; a drainpipe connected to the opening in the lower part of the toilet bowl, wherein in a first state the drainpipe can have a shape that is predominantly U shaped along a vertical plane and in a second state the drainpipe can have a shape that is predominantly horizontal or sloping outwards and downwards; and a flush tank with a flushing mechanism which is linked to the drainpipe, such that on initiation or activation of the flushing mechanism the shape of the drainpipe can be converted from the first state to the second state and subsequently the shape of the drainpipe can be converted back to the first state.
[0023] In an additional aspect, the flushing mechanism is linked to the drainpipe through a linking mechanism comprising one or both of the following: one or more members wherein the members may be rigid or flexible, or an electronic or electrical or mechanical mechanism including a wired or wireless communication link.
[0024] In an additional aspect, the shape of the drainpipe is converted from the first state to the second state and back to the first state by one or more of moving, pulling, pushing, lowering, lifting, turning, rotating, twisting, stretching, compressing or any other shape changing action.
[0025] In an additional aspect, the flushing in the flush toilet system happens in two stages wherein in stage 1 the shape of the drainpipe is converted from the first state to the second state enabling the waste in the drainpipe to flow out and in stage 2 water in the flush tank is released to flush the toilet and fill the drainpipe to create a block for bad odors.
[0026] In an additional aspect, stage 2 for releasing water from the flush tank is delayed until the shape of the drainpipe is converted back from the second state to the first state.
[0027] In another aspect, the present invention is a method of flushing a toilet comprising the steps of: changing a shape of a drainpipe connected to the toilet from a first state wherein the drainpipe has a shape that is predominantly U shaped along a vertical plane to a second state wherein the drainpipe has a shape that is predominantly horizontal or sloping outwards and downwards, such that waste material in the drainpipe can flow out; changing back the shape of the drainpipe from the second state to the first state; and releasing water from a flush tank to flush the toilet and fill the predominantly U shaped drainpipe.
[0028] In an additional aspect, the step of releasing water from a flush tank is started before, during or after the step of changing back the shape of the drainpipe.
[0029] In an aspect, the present disclosure relates to a commode system comprising: a water inlet, a flush tank comprising a tubular protrusion, said flush tank being operatively coupled with at least one bowl; and a syphon pipe operatively coupled with one or more flush buttons, said one or more flush buttons being operatively connected to a movable T-shaped frame that is further operatively connected to a flexible drainpipe and passes through said tubular protrusion in a manner such that when any one of the one or more flush button is operated to flush water from the at least one bowl, the movable T-shaped frame mechanically moves in same direction as that of flush button so as to cause bend of the flexible drainpipe to temporarily straighten and cause the water from the bend to pass through the drainpipe, and to cause the flexible drainpipe to revert back to original bend shape after a pre-defined time period when the movable T-shaped frame moves back to original position. [0030] In an aspect, the tubular protrusion is of a shape selected from any or a combination of a tube shaped lump, tube like protrusion, and cylindrical shape lump.
[0031] In another aspect the water inlet can be selected from any or a combination of a ball clock bottom inlet and a ball clock top.
[0032] In yet another aspect, height of said tubular protrusion, when not depressed by lid of said flush tank, is greater than that of said flush tank.
[0033] In another aspect, the movable T-shaped frame is connected to one or more springs operatively connected to the one or more flush buttons.
[0034] In another aspect, the movable T-shaped frame comprises a head horizontal portion and an elongated vertical body portion, said vertical body portion passing through the tubular protrusion of the flush tank, and bottom part of said vertical body portion comprising a ring enclosing the flexible drainpipe.
[0035] In another aspect, the flush tank can be provided with a hole to enable upward and downward movement of the movable T-shaped frame in response to the operation of the one or more flush buttons.
[0036] In another aspect, the one or more flush buttons can be printed / embossed with S and L letters to identify the flush buttons, wherein the S letter is printed on the flush button to flush liquid waste, and the L letter is printed on the flush button to flush solid waste.
[0037] In another aspect, flushing mechanism can be linked to the drainpipe through a connecting pipe, wherein lower end of the connecting pipe comprises a mechanism for clasping the drainpipe, said mechanism comprising a plastic ring enclosing/holding the drainpipe that is connected to the connecting pipe to convert the shape of drainpipe.
[0038] In another aspect, when the system is not in use, the one or more flush buttons stay raised-up with the support of springs below them, based on which pipe of the T-shaped frame also stays raised up with the support of spring under its T head so as to enable the drainpipe also to stay in P-bend shape, there-by retaining required quantity of water in the commode.
[0039] Various objects, features, aspects and advantages of the present disclosure will become more apparent from the following detailed description of preferred embodiments, along with the accompanying drawing figures in which like numerals represent like features.
BRIEF DESCRIPTION OF THE DRAWINGS
[0040] The accompanying drawings are included to provide a further understanding of the present disclosure, and are incorporated in and constitute a part of this specification. The drawings illustrate exemplary embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure.
[0041] In the figures, similar components and/or features may have the same reference label. Further, various components of the same type may be distinguished by following the reference label with a second label that distinguishes among the similar components. If only the first reference label is used in the specification, the description is applicable to any one of the similar components having the same first reference label irrespective of the second reference label.
[0042] FIG. 1 illustrates a conventional dual flush system as available in the prior-art.
[0043] FIG. 2 illustrates conventional commodes showing 'S' or 'P' bend as available in the prior-art.
[0044] FIG. 3 illustrates a proposed flush tank in proposed toilet system, in accordance with embodiments of the present disclosure.
[0045] FIGs. 4A-B illustrates proposed toilet systems when not in use, in accordance with embodiments of the present disclosure.
[0046] FIGs. 5 A-B illustrates proposed toilet systems when in use, in accordance with embodiments of the present disclosure.
[0047] FIGs. 6A-6N illustrate another exemplary embodiment of the present invention.
DETAILED DESCRIPTION
[0048] Although, the present disclosure has been described for a toilet system having low water usage. It should be appreciated that the same has been done merely to illustrate the disclosure in an exemplary manner and any other purpose or function for which they explained structure or configuration can be used is covered within the scope of the present disclosure.
[0049] If the specification states a component or feature "may", "can", "could", or
"might" be included or have a characteristic, that particular component or feature is not required to be included or have the characteristic.
[0050] Exemplary embodiments will now be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments are shown. This disclosure may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided so that this disclosure will be thorough and complete and will fully convey the scope of the disclosure to those of ordinary skill in the art. Moreover, all statements herein reciting embodiments of the disclosure, as well as specific examples thereof, are intended to encompass both structural and functional equivalents thereof. Additionally, it is intended that such equivalents include both currently known equivalents as well as equivalents developed in the future (i.e., any elements developed that perform the same function, regardless of structure).
[0051] Thus, for example, it will be appreciated by those of ordinary skill in the art that the diagrams, schematics, illustrations, and the like represent conceptual views or processes illustrating systems and methods embodying this disclosure. The functions of the various elements shown in the figures may be provided through the use of dedicated hardware as well as hardware capable of executing associated software. Their function may be carried out through the operation of program logic, through dedicated logic, through the interaction of program control and dedicated logic, or even manually, the particular technique being selectable by the entity implementing this disclosure. Those of ordinary skill in the art further understand that the exemplary hardware, software, processes, methods, and/or operating systems described herein are for illustrative purposes and, thus, are not intended to be limited to any particular named.
[0052] Various terms as used herein are shown below. To the extent a term used in a claim is not defined below, it should be given the broadest definition persons in the pertinent art have given that term as reflected in printed publications and issued patents at the time of filing.
[0053] Embodiments of the present disclosure relates to low flush toilet system (and particularly an ultra-low flush toilet system), which may at least partially overcome at least one of the abovementioned disadvantages or provide the consumer with a useful or commercial choice.
[0054] In an aspect, the present disclosure relates to a commode system comprising: a water inlet, a flush tank comprising a tubular protrusion, said flush tank being operatively coupled with at least one bowl; and a syphon pipe operatively coupled with one or more flush buttons, said one or more flush buttons being operatively connected to a movable T-shaped frame that is further operatively connected to a flexible drainpipe and passes through said tubular protrusion in a manner such that when any one of the one or more flush button is operated to flush water from the at least one bowl, the movable T-shaped frame mechanically moves in same direction as that of flush button so as to cause bend of the flexible drainpipe to temporarily straighten and cause the water from the bend to pass through the drainpipe, and to cause the flexible drainpipe to revert back to original bend shape after a pre-defined time period when the movable T-shaped frame moves back to original position.
[0055] In an aspect, the tubular protrusion is of a shape selected from any or a combination of a tube shaped lump, tube like protrusion, and cylindrical shape lump.
[0056] In another aspect the water inlet can be selected from any or a combination of a ball clock bottom inlet and a ball clock top.
[0057] In yet another aspect, height of said tubular protrusion, when not depressed by lid of said flush tank, is greater than that of said flush tank.
[0058] In another aspect, the movable T-shaped frame is connected to one or more springs operatively connected to the one or more flush buttons.
[0059] In another aspect, the movable T-shaped frame comprises a head horizontal portion and an elongated vertical body portion, said vertical body portion passing through the tubular protrusion of the flush tank, and bottom part of said vertical body portion comprising a ring enclosing the flexible drainpipe.
[0060] In another aspect, the flush tank can be provided with a hole to enable upward and downward movement of the movable T-shaped frame in response to the operation of the one or more flush buttons.
[0061] In another aspect, the one or more flush buttons can be printed / embossed with S and L letters to identify the flush buttons, wherein the S letter is printed on the flush button to flush liquid waste, and the L letter is printed on the flush button to flush solid waste.
[0062] In another aspect, flushing mechanism can be linked to the drainpipe through a connecting pipe, wherein lower end of the connecting pipe comprises a mechanism for clasping the drainpipe, said mechanism comprising a plastic ring enclosing/holding the drainpipe that is connected to the connecting pipe to convert the shape of drainpipe.
[0063] In another aspect, when the system is not in use, the one or more flush buttons stay raised-up with the support of springs below them, based on which pipe of the T-shaped frame also stays raised up with the support of spring under its T head so as to enable the drainpipe also to stay in P-bend shape, there-by retaining required quantity of water in the commode.
[0064] An aspect of the present disclosure relates to a toilet system having a flush tank enclosing syphon pipe and having one or more flush buttons operatively connected to a movable T-shaped frame which is further operatively connected to a drainpipe.
[0065] The present invention is a system and method of making the P-bend of the drainpipe predominantly horizontal or sloping outwards and downwards at the beginning of or during the flushing process such that the waste material flows out of the toilet due to the force of gravity without requiring extra water flow to push it out, thereby saving water. After most or all of the waste has flowed out of the toilet, the P-bend shape of the drainpipe is restored and less quantity of water needs to be used to flush and fill the P-bend and block the bad odors. The flushing system and the drainpipe at the bottom of the toilet are linked to enable the P-bend of the drainpipe to be made predominantly horizontal or sloping outwards when the flushing process is initiated or activated.
[0066] The 'S' or 'P' bend (having an approximately 'U' shape along a vertical plane and also referred to as P-bend herein) in the drainpipe at the bottom of existing toilets is designed to hold water thus preventing bad odors from the sewage pipes below from rising up into the toilet bowl. However, while the toilet is being used, the bend in the drainpipe also holds the waste matter which cannot flow out unless extra water with a good flow rate is flushed through the toilet thereby pushing out the waste. This leads to use of more water and wastage for pushing out the waste.
[0067] This aim and these and other objects of the invention are achieved by atoilet system that enables to utilize relatively low quantities of water, block the bad smell or odour that may originate from the sewage pipes down and which overcomes the disadvantages of the prior art, which is simple in construction, easy to install and simple to operate.
[0068] The present invention relates to a low water usage flush toilet system and method.
[0069] The present invention is a system and method of making the P-bend of the drainpipe predominantly horizontal or sloping outwards and downwards at the beginning of or during the flushing process such that the waste material flows out of the toilet due to the force of gravity without requiring extra water flow to push it out, thereby saving water. After most or all of the waste has flowed out of the toilet, the P-bend shape of the drainpipe is restored and less quantity of water needs to be used to flush and fill the P-bend and block the bad odors. The flushing system and the drainpipe at the bottom of the toilet are linked to enable the P-bend of the drainpipe to be made predominantly horizontal or sloping outwards when the flushing process is initiated or activated.
[0070] In an aspect, the present invention is a flush toilet system comprising of: a toilet bowl with an opening at or near the bottom; a drainpipe connected to the opening at or near the bottom of the toilet bowl, wherein in a first state the drainpipe can have a shape that is predominantly U shaped along a vertical plane and in a second state the drainpipe can have a shape that is predominantly horizontal or sloping outwards and downwards; and a flush tank with a flushing mechanism which is linked to the drainpipe, such that on initiation or activation of the flushing mechanism the shape of the drainpipe can be converted from the first state to the second state and subsequently the shape of the drainpipe can be converted back to the first state.
[0071] In additional aspect, the drainpipe in the flush toilet system is flexible and can be pulled up to make it predominantly horizontal and can be lowered to make it predominantly u shaped by using the flushing mechanism.
[0072] In additional aspect, the flushing mechanism is linked to the drainpipe through a connecting pipe (flexible drain-side connecting pipe) and the lower end of the connecting pipe (flexible drain-side connecting pipe) has a mechanism for clasping the drainpipe. In an aspect, the mechanism for clasping the drainpipe includes a plastic ring enclosing/holding the drainpipe that is connected to the connecting pipe to convert the shape of drainpipe.
[0073] In an aspect, in contrast to the conventional toilets where drainpipes are fixed or rigid, the drainpipe is made flexible (also interchangeably referred to as "movable") and is operatively movable by means of a flushing mechanism. In another aspect, flushing mechanism includes a movable T-shaped frame passes through the syphon pipe and thereby through a tubular protrusion.
[0074] In an aspect, said movable T-shaped frame is connected to one or more springs operatively connected to the flush buttons. In another aspect, said movable T-shaped frame is connected with one or more springs having one or more plastic rods operatively connected to the flush buttons.
[0075] In an aspect, said movable T-shaped frame includes a head portion (horizontal part) and an elongated body portion (vertical part). In another aspect, the vertical part passes through the tubular protrusion in the flush tank. In an aspect, a bottom part of the vertical part includes a ring enclosing/holding the drainpipe.
[0076] In an aspect, the drainpipe is connected to said flushing mechanism in such a manner that when a flush button is operated to flush the water from the bowl, the movable T- shaped frame connected to the flush button mechanically moves in same direction (downward) as that of flush button causing/forcing "S" or "P" bend of the drainpipe coupled to said movable T-shaped frame to straighten.
[0077] In an aspect, the flush tank is provide with a hole to enable upward and downward movement of said movable T-shaped frame in response to the operation of the flush button. In another aspect, the flush tank includes a tubular protrusion to enable passage of said movable T-shaped frame and allow upward and downward movement of said movable T-shaped frame smoothly in response to the operation of the flush button.
[0078] In an aspect, said toilet system uses the flow of water on a flush to suck air from the cavity between the two traps, reducing the air pressure there to create the siphon which sucks water and waste from the toilet bowl. Towards the end of the flush the aspirator ceases being covered in water, thus allowing air into the cavity between traps to break the siphon without the noise while the final flush water fills the pan. In another aspect, said toilet system work by the force of gravity and has no pressure assistance of any kind.
[0079] An aspect of the present disclosure relates to a flushing mechanism
(interchangeably can refereed as connecting apparatus) for making a connection between one or more flushing buttons which faces a floor surface and a flexible drainpipe which faces toward a bottom surface of a toilet stool at a floor position which is skewed from the floor position of said flushing buttons.
[0080] In an aspect, the connecting apparatus includes a T-Shaped frame having a horizontal first member and a vertical second member. In an aspect, the horizontal first member is substantially perpendicular to the parallel first member. In an aspect, the first member is provided at a flushing-side connecting pipe for connecting to flushing buttons, and said second member for connecting to a connecting pipe (flexible drain-side connecting pipe) for connecting to flexible drainpipe. In an aspect, the flexible drainpipe is capable of moving with at least an operation of said flushing ports. In an aspect, the flushing mechanism is linked to the drainpipe through a connecting pipe (flexible drain-side connecting pipe) and the lower end of the connecting pipe (flexible drain-side connecting pipe) has a mechanism for clasping the drainpipe.
[0081] In an aspect, a method or process for making/ converting the P-bend of the drainpipe predominantly horizontal or sloping outwards and downwards at the beginning of or during the flushing process can include the following steps: initiate or activate a flushing mechanism by operating the flush buttons wherein a flush tank with the flushing mechanism which is linked to a drainpipe; during the flushing process such that a waste material flows out of the toilet due to the force of gravity without requiring extra water flow to push it out, thereby saving water and the P-bend shape of the drainpipe is restored and less quantity of water needs to be used to flush and fill the P-bend and block the bad odors after most or all of the waste has flowed out of the toilet the due to the flushing mechanism that converts the shape of the drainpipe from a first state to a second state wherein the first state of the drainpipe can have a shape that is predominantly U shaped along a vertical plane and in the second state of the drainpipe can have a shape that is predominantly horizontal or sloping outwards and downwards.
[0082] In an aspect, said toilet system can be an aspirator that uses the flow of water on a flush to suck air from the cavity between the two traps, reducing the air pressure there to create the siphon which sucks water and waste from the toilet bowl. Towards the end of the flush the aspirator ceases being covered in water, thus allowing air into the cavity between traps to break the siphon without the noise while the final flush water fills the pan.
[0083] In another aspect, said toilet system work by the force of gravity and has no pressure assistance of any kind. In case of toilet system that works by the force of gravity, when the handle of the toilet is pushed, the flush lever inside the tank attached to a lift chain lifts up a flapper valve at the bottom of the tank, allowing water to rush down through the flush opening and into the toilet bowl. The forceful action of the water is what forces waste in the toilet bowl down into the toilet trap and into the house drain system and from there out to the sewer lines. In another aspect, as the tank empties with water, the float ball or float cup in the tank goes down, causing the flush valve (sometimes called a ballcock) to activate the flush valve to begin refilling the tank. It also starts spraying water into the fill tube, which leads to the bowl. At the same time, a refill tube running from the flush valve to the overflow tube sends a small stream of water down into the toilet bowl, refilling the level of standing water there. In yet another aspect, as the water level in the tank rises, the float ball or float cup shuts off the toilet valve and water stops entering the tank. The toilet is ready for the next flush.
[0084] An aspect of the present disclosure relates to a connecting apparatus for making a connection between one or more flushing buttons which faces a floor surface and a flexible drainpipe which faces toward a bottom surface of a toilet stool at a floor position which is skewed from the floor position of said flushing buttons.
[0085] In an embodiment, the toilet may be of any suitable form, and the exact nature of the toilet is not critical to the invention. Preferably, however, the toilet comprises a cistern and a bowl in fluid communication with one another. In a preferred embodiment of the invention, the toilet is a low flush toilet. A skilled addressee will understand that the term "low flush toilet" refers to a toilet in which reduced quantities of water are used when flushing the toilet. While the exact quantities of water required to flush a "low flush toilet" are not critical, it is envisaged that a "low flush toilet" is one in which approximately 3 liters of water are used for a full flush, and approximately 2 liters of water are used for a half flush. [0086] In an embodiment, the toilet may be an ultra-low flush toilet. A skilled addressee will understand that the term "ultra-low flush toilet" refers to a toilet in which the quantities of water used when flushing the toilet are lower than those used in a low flush toilet. While the exact quantities of water required to flush an "ultra-low flush toilet" are not critical, it is envisaged that an "ultra-low flush toilet" is one in which approximately 3 liters of water are used for a full flush, and approximately 2 liters of water are used for a half flush.
[0087] It is envisaged that the toilet bowl will further include a rim, and a skilled addressee will understand that the rim of the toilet bowl will be adapted to direct water from the cistern into the bowl when the toilet is flushed. Typically, a toilet rim comprises a channel extending substantially entirely around the entire circumference of the toilet bowl, allowing water from the cistern to enter the bowl around the entire circumference of the bowl. However, in some embodiments, providing an ultra-low flush toilet may also be achieved through the use of a rim adapted to increase the efficiency with which the toilet is flushed by directing water from the cistern to specific areas within the bowl, meaning that less water is required to flush the toilet.
[0088] In an embodiment, the toilet outlet may be of any suitable form. Preferably, the toilet outlet is associated with the toilet bowl. In a preferred embodiment, the toilet outlet is connected to one or more toilet outlet conduits (such as pipes or channels) that direct waste material away from the toilet bowl upon flushing of the toilet. The toilet outlet conduit may be connected directly to the waste material collection vessel or may be connected to the waste material collection vessel by one or more intermediate conduits.
[0089] In an embodiment, the toilet outlet conduit may be of any suitable form, and may include a conduit having a tortuous path, including a water trap (such as an S-bend, P- trap or the like, or a combination thereof). Alternatively, the outlet conduit may not have a tortuous path, and may comprise a substantially straight or curved section of pipe.
[0090] FIG. 1 illustrates a conventional dual-flushsystem as available in the prior-art.
It would be appreciated that aspects of the present disclosure can be applied to a variety of toilet systems, all of which are well within the scope of the present disclosure. It may be appreciated that, the conventional dual-flush toilet is a variation of the flush toilet that uses two buttons or handles to flush different levels of water.
[0091] Referring now to FIG. 1, the conventional dual -flush toilet includes the water tank, ball-cock, and siphon with plunger plate and chamber whereas the siphon in the flush tank is used to supply the water to the bowl or commode. In the conventional dual flush toilet includes two flush mechanisms normally two buttons located on the top of the tank instead of a lever. One flush button engages a flush using less water (about 3 litters) that's meant only for liquid waste, while the other flush button engages a flush using large water (about 6 litters) meant for solid waste.
[0092] The conventional dual-flush toilet system can include one or two flush buttons
104-A, 104-B to flush/discharge/flow small amount of water for liquid waste and/or large amount of water for solid waste. The flush button for smaller quantity water which is represented by 104-A flushes/discharges approximately 3-6 litres and the flush button for large quantity water which is represented by 104-B flushes/discharges approximately 4-8 litres water. The ball clock represented by 106 (water inlet from bottom) or 108 (water inlet from top) which is a mechanism or machine for filling water tanks, such as those found in flush toilets, while avoiding overflow and (in the event of low water pressure) backflow.
[0093] A dual flash valve 110 which can be pre-stetted and pre-defined for smaller and larger quantities of water discharge. In conventional dual-flush toilet, a drainage pipe can have shape as P-bend or fixed bend due to which the water can be flushed in larger quantity such as 4 to 8 litters from the flush tank after pressing the flush button.
[0094] The conventional dual flush toilet includes two different buttons which are housed within the tank lid, attached to 'actuator rods', which engage the flush valve 112 on being pushed. In the conventional dual flush toilet, as the smaller or 104-A press down then a shorter rod press by the dual flush valve 110 only for a short period and flushes the water up to minimum quantity such as 3 litters. As the large button or 104-B press down then another rod press by the dual flush valve 110 only for a short period and flushes the water up to large quantity such as 6 litters.
[0095] FIG. 2 illustrates conventional commodes showing 'S' or 'P' bend as available in the prior-art. In an embodiment FIG. 2 illustrates two in one western cum Indian commodes (left) and western commodes (right) which can include a dual discharge flush system as discussed in FIG. 1. Further, as shown in FIG. 2, the one western cum Indian commodes (left) and western commodes (right) includes a P-bend holding water level inside commode which restrict behind the remains of the toilet at the bottom of the toilet bowl thereby prohibiting bad odor or smell.
[0096] FIG. 3 illustrates a proposed flush tank for commode system in accordance with embodiments of the present disclosure. In an embodiment, the flush tank 302 according to the present disclosure can be a modified flush tank 302 provided with a tubular protrusion 304. In an exemplary embodiment, the flush tank can have liquid capacity of about 2-10 liters and the flush tank liquid capacity can be varied as per manufacturing of the flush tank 302. [0097] In an exemplary embodiment, the tubular protrusion 304 can be tube shaped lump or tube like protrusion or cylindrical shape lump. In another exemplary embodiment, the tubular protrusion or tube shaped pipe 304 and the flush tank 302 and the commode/ bowl can have different dimensions (height, length, and width), size and shape while manufacturing the system and as per the requirements. In an exemplary embodiment, the tubular protrusion or tube shaped pipe 304 can have dimension as 15 cm diameter and height is 1 cm more than the flush tank height without lid starting from the bottom of flush tank, going upwards and open in both sides. Height of the flush tank is 30 cm (because if it is made shorter, the water filled in flush tank, may flow out through this protrusion)..
[0098] FIGs. 4A-B illustrates proposed toilet systems when not in use, in accordance with embodiments of the present disclosure. In an embodiment, FIG. 4A illustrates the improved commode system (western toilet) when not in use in accordance with embodiments of the present disclosure. In an embodiment, FIG. 4B illustrates the improved toilet system (Indian/eastern toilet) when not in use in accordance with embodiments of the present disclosure. In an embodiment, the improved commode system at least include a flush tank, a syphon pipe, a ball clock bottom inlet type or ball clock top inlet type, a bowl or commode, a drainage pipe.
[0099] In an embodiment, the improved commode system includes a flush tank 302, a syphon pipe 306 with a dual flush buttons 310, 312, a ball clock bottom 106 (water inlet from bottom) and a ball clock top 108(water inlet from top), a syphon pipe 306.
[00100] In an exemplary embodiment, flush tank 302 can be of about 6 liters capacity necessary. This flush tank has a tubular protrusion 304 preferably 15 cm diameter and height is 1 cm more than the flush tank height without lid starting from the bottom of flush tank, going upwards and opens in both sides. Height of the flush tank is preferably 30 cm (because if it is made shorter, the water filled in flush tank, may flow out through this protrusion).. . In another exemplary embodiment, the tubular protrusion or tube shaped pipe 304 and the flush tank 302 dimensions (length, height, width) can vary while manufacturing the system.
[00101] In an exemplary embodiment, a standard syphon pipe 306 with dual flush buttons 310, 312 are installed at the center-back of the flush tank 302.
[00102] In an exemplary embodiment, a ball clock bottom 106 (water inlet from bottom) or a ball clock top 108 (water inlet from top) can be installed inside the flush tank 302 for control of water flow.
[00103] In an embodiment, the commode system according to the present disclosure includes a flush tank 302 enclosing syphon pipe 306, ball cock 106, 108, and having one or more flush buttons 310, 312 operatively connected to a movable T-shaped frame 318 which is further operatively connected to a flexible (also interchangeably referred to as "movable") drainpipe 324.
[00104] In an aspect, said movable T-shaped frame 318 passes through the syphon pipe 306 and thereby through a tubular protrusion 304.
[00105] In an aspect, said movable T-shaped frame 318 is connected to one or more springs 308, 316 operatively connected to the flush buttons 310, 312. In another aspect, said movable T-shaped frame 318 is connected with one or more springs 308, 316 having one or more plastic rods operatively connected to the flush buttons 310, 312.
[00106] In an aspect, said movable T-shaped frame 318 includes a head portion (horizontal part) and an elongated body portion (vertical part). In an aspect, the vertical part passes through the tubular protrusion 304 of the flush tank 302. In an aspect, a bottom part of the vertical part includes a ring 322 enclosing the flexible drainpipe 324.
[00107] In an aspect, the flexible drainpipe 324 is connected to said movable T-shaped frame 318 in such a manner that when any one of the flush button 310, 312 is operated to flush the water from the bowl 320, the movable T-shaped frame 318 connected to the flush button 310, 312 mechanically moves in same direction (i.e., downward) as that of flush button 310, 312 causing/forcing "S" or "P" bend of the flexible drainpipe 324 coupled to said movable T-shaped frame 318 to straighten and causing the water 326 from the "S" or "P" bend passing through the drainpipe 324.
[00108] In an aspect, the flush tank 302 is provided with a hole to enable upward and downward movement of said movable T-shaped frame 318 in response to the operation of the flush button 310, 312. In another aspect, the flush tank 302 includes the tubular protrusion 304 to enable passage of said movable T-shaped frame 318 and allow upward and downward movement of said movable T-shaped frame 318 smoothly in response to the operation of the flush button 310, 312.
[00109] In an exemplary embodiment, the syphon pipe 306 can have a connecting apparatus for making connection between one or more bowl 320 or commode 320 which faces a floor surface and the drainage pipe 324.
[00110] In an exemplary embodiment, the dual flush buttons 310, 312 can be used to flush a liquid waste and solid waste respectively. In another exemplary embodiment, the flush buttons such as 310, 312 can be printed / embossed with S and L letters to identify the flush buttons 310, 312 for different purposes. In one example, S may be printed on the flush button to flush liquid waste and L may be printed on the flush button to flush solid waste. [00111] In an exemplary embodiment, the syphon pipe 306 can be provided with dual flush buttons 310, 312 which can be installed at the centre-back of the flush tank 302. In another exemplary embodiment, the syphon pipe 306 can be connected with the flush tank 302 and the commode or bowl 320. In another exemplary embodiment, a ball clock bottom 106 (water inlet from bottom) and a ball clock top 108 (water inlet from top) can be installed inside the flush tank 302 for control of water flow. The ball cock (also sometimes referred to as ball tap or float valve) top inlet 106 and bottom inlet 108 ballcock is a mechanism or machine for filling water tanks, such as those found in conventional flush tanks, while avoiding overflow and (in the event of low water pressure) backflow.
[00112] In an exemplary embodiment, the commode system can include a connecting apparatus having a T-shaped frame 318, springs 308, 316, and a chair-shaped plastic rod (not numbered). The connecting apparatus can be attached to the bowl or commode 320 and the drainpipe 324.
[00113] In an exemplary embodiment, in the middle of the springs 308, 316 but from outside of the syphon pipe 306 and through the tubular protrusion 304, a 10mm diameter plastic pipe with a T-shaped frame 318 can be installed by the support of a 12mm spring 314. The plastic pipe with T-shaped frame 318 is about 120cm long and this pipe can pass through the tubular protrusion 304 in the flush tank 302. At the bottom side of this pipe, a 2mm thick and 20mm broad a plastic ring 322 of 50mm diameter is attached.
[00114] In an exemplary embodiment, the drainpipe or drainpipe 324 can preferably have dimensions such as 7.5cm in diameter and 80 cm long. The one side of the drainpipe or the drainpipe 324 can be attached to the commode outlet and it passes through the plastic ring 322 and another side of the drainpipe or drainpipe 324 can be attached to the sewage pipe opening.
[00115] In an exemplary embodiment, the drainpipe 324 in the flush toilet system is flexible and can be pulled up to make it predominantly horizontal and can be lowered to make it predominantly u shaped by using a flushing mechanism.
[00116] In an exemplary embodiment, the flushing mechanism is linked to the drainpipe 324 through a connecting pipe (flexible drain-side connecting pipe) and the lower end of the connecting pipe (flexible drain-side connecting pipe) has a mechanism for clasping the drainpipe. In an aspect, the mechanism for clasping the drainpipe includes a plastic ring 322 enclosing/holding the drainpipe that is connected to the connecting pipe to convert the shape of drainpipe 324. [00117] In an embodiment, when this system is not in use or in stationary, both the flush button levers 310, 312 stay raised-up with the support of the springs 308, 314 below them which are fixed on flush buttons 310, 312. The pipe (vertical portion) of the T-shaped frame 318 also stays raised up with the support of spring under its T head. Consequent to T- shaped frame 318, the drainpipe 324 also stays in P-bend shape there-by retaining required quantity of water in the commode. About 1.5 liters of water is retained in the commode and the P-bend of flexi pipe at this stage.
[00118] FIGs. 5 A-B illustrates exemplary working of the improved commode system in accordance with embodiments of the present disclosure. In an embodiment, FIG. 5A illustrates operation of the improved commode system when a flush button 310 dedicated for liquid waste (printed /embossed with letter S) is pressed, whereas FIG. 5B illustrates operation of the improved commode system when a flush button 312 dedicated for solid waste (printed /embossed with letter L) is pressed.
[00119] Referring now to FIG. 5 A, when a flush button 310 dedicated for liquid waste
(printed /embossed with letter S) is pressed, it presses down the spring 308 (not shown) under it and that in turn presses the flush button 310 under it and due to this, preferably 2 liters of water is released from flush tank 302 to commode 320. In an exemplary embodiment, this releasing of water can be set about 3-4 seconds delay, so that only about half liter water flows out the drainpipe and balance of 1.5 liter stays in the commode and drainpipe.
[00120] In an exemplary embodiment, the flush button 310 simultaneously presses down the T pipe 318 which in turn press down the drainpipe 324 and straighten it. Due to straightening of the drainpipe 324, the liquid waste which is in the commode 320 flows down the drainpipe 324 and into the sewage pipe.
[00121] In an exemplary embodiment, preferably after 3-4 seconds after the flush lever
310 is released, T pipe 318 comes to its normal raised position which in turn raises the drainpipe 324 to its P-bend position. In an exemplary embodiment, when the drainpipe 324 comes back to its P-bend position, water released from the flush tank 302 stays in the commode 320 and the P-bend.
[00122] Referring now to FIG. 5B, when a flush button 312 dedicated for solid waste
(printed /embossed with letter L) is pressed, the flush button 312 presses down the spring 316 under it and that in turn presses the flush button 312 under it and due to this, 3 litres of water is released from flush tank 302 to commode 320. In an exemplary embodiment, this releasing of water can be set with about 3-4 seconds delayed, so that only about 1.5 litre water flows out the drainpipe 324 and balance of 1.5 litre stays in the commode 320 and drainpipe 324. [00123] In an exemplary embodiment, the flush button 312 simultaneously presses down the T pipe 318 which in turn press down the drainpipe 324 and straighten it. Due to straightening of the drainpipe 324, the solid waste which is in the commode 320 flows down the drainpipe 324 and into the sewage pipe.
[00124] In an exemplary embodiment, preferably after 3-4 seconds after the flush lever
310 is released, T pipe 318 comes to its normal raised position which in turn raises the drainpipe 324 to its P-bend position. In an exemplary embodiment, when the drainpipe 324 comes back to its P-bend position, water released from the flush tank 302 stays in the commode 320 and the P-bend.
[00125] In an exemplary embodiment, the commode system comprising of the toilet bowl 320 with an opening at or near the bottom and the drainpipe 324 connected to the opening at or near the bottom of the toilet bowl 320, wherein in a first state the drainpipe can have a shape that is predominantly U shaped along a vertical plane (which is shown in fig 4A and 4B) and in a second state the drainpipe can have a shape that is predominantly horizontal or sloping outwards and downwards (which is shown in fig 5A and 5B); and the flush tank 320 with a flushing mechanism which is linked to the drainpipe, such that on initiation or activation of the flushing mechanism the shape of the drainpipe 324 can be converted from the first state to the second state and subsequently the shape of the drainpipe can be converted back to the first state.
[00126] In an embodiment, by the implementation of the proposed improved toilet system, approximately only 2 liters of water is required for flushing out liquid waste and 3 liters for flushing out solid waste is required. This is, by far the lowest water used for flushing. Presently the lowest in the market is 3 liters and 6 liters in dual system and 8 liters in singular system. Thus, the implementation of the proposed improved toilet system can reduce the water usage to about half of minimum one in the market due to the inclusion of modified P-bend or flexible drain pipe.
[00127] FIGs. 6A-6N illustrate another exemplary embodiment of the present invention. In an exemplary aspect, the proposed system can include a flush tank 602 having a long tubular protrusion 604 (for instance, at right-front side in an exemplary embodiment). In an example, the tubular protrusion can be of a size of around 15-25 cm in length and around 15-30 cm in diameter. In an aspect, the protrusion 604 can be open on both ends: In an example, the flush tank can be configured to store, for instance, 6-10 Litres of water. FIG. 6B illustrates a standard flush system, whereas FIG. 6C illustrates the apparatus of Low Water Flushing system. FIG. 6D illustrates ccommode designed with outlet much lower than commodes and without in-built S or P bend. FIG. 6E illustrates the flexible pipe, whereas FIG. 6F illustrates ball cock bottom inlet type, and FIG. 6G illustrate top inlet type.
[00128] In an aspect, the tubular protrusion starts from center-front of the base and goes upwards and is open from both sides. As shown in FIG. 6B, the proposed flushing system can include dual discharge buttons/flush buttons (marked here as S & L) and can, for instance, be installed at the center-left of the flush tank. In another aspect, S button can be preset for discharge of only, for instance, around 1 liter of water, and button L can be preset for only 2 liters, for instance (these are completely non-limiting examples). Further, L button here can be closed and can be made inactive for use because there doesn't arise a need to press it from.
[00129] With reference to FIG. 6C, the proposed apparatus can be mounted on a thick moulded plastic plate 606 of rectangle shape fixed to front and back walls of flush tank from inside. This plastic plate can include 3 holes (only exemplary embodiment), one being in the center and two on the left and right sides. This plate can be fixed to the top end of the tubular protrusion through the center hole. A hard plastic tube 608 can be inserted through the tubular protrusion, wherein at the lower end of this tube, one plastic ring 610 can be fixed and a flexible pipe 612 (for instance, of about 10 cm diameter and 80 cms long) can be inserted through this ring.
[00130] In an aspect, one end of the flexible pipe 612 can be fixed to the commode outlet 614, and another end is fixed to sewage outlet of the wash-room where the commode is installed. A spring 616 (for instance, of about 15 cm diameter and 25 cms height (extended)) can be inserted through the top end of the plastic tube 608 so as to sit on the rectangle plastic plate fixed in the flush tank. Now, at the top end of the plastic tube 608, another/second plastic plate of oval shape 618 can be fixed, which second plastic plate 618 can have 3 holes (for instance), one being in the center (for instance, of about 12mm diameter), and two holes (of, for instance, about 10mm diameter) on either side. This second plastic plate 618 can be fixed tight with a plastic head 620 to the top end of the plastic tube 608. Furthermore, Two plastic rods (for instance, of about 7mm diameter and 40cm length) with a handle type shape at the top are inserted through the side hole of both the plastic plates 606 and 618. These rods can include a ring shaped thick protrusion down from the top. These rods can be inserted through 2 side holes of both the plastic plates, wherein they go down their length when inserted as the ring shaped protrusion is stopping them to descend further.
[00131] In an example, with reference to FIG. 6D, the proposed commode can have no built-in or attached P-bend. Also its outlet is at the lower edge can be lower than the conventional commodes. In another example, the flexible pipe 612 can be a spiral pipe, wherein one side of it can be attached to the commode outlet and it passes through the apparatus ring 610 mentioned above. Another side of the spiral pipe can be attached to the sewage pipe opening. As mentioned above, the a ball cock either top-inlet type or bottom inlet type can be installed inside the flush tank for control of water flow.
[00132] Additionally, in an exemplary embodiment, the proposed system can have 2 ropes 622/624 that connect Flush System to the proposed apparatus, more specifically ' S' Button/Lever of flush system to No. 1 handle of apparatus, pushing of which 1 liter water is discharged & 'L' button of flush system to No. 2 handle of apparatus, pushing of which, 2 liter water is discharged.
[00133] During operation, when liquid waste is to be flushed, handle marked 700 can be pressed down (and held for 3-4 seconds), which in turn can presses down the oval plate 618, and consequently the plastic pipe 608 presses down the flexible pipe 612 and straightens it. Immediately liquid waste collected at the base of the bowl flows out along with 1 liter water that is already there in the bowl. Pressing down the Handle 702 creates a simultaneous action where while pressing down the flexible pipe 612 and straitening it, handle 700 also pulls down the lever of first button 800 from inside through the rope 624 attached from handle 700 to button lever from inside. Notice in FIG. 61, the rope 624 is pulled down and has become straight. Handle/Lever 702 can be pulled down and T-jack 626 can be pushed-up and this in turn can pull up the rod of syphon pump 628 and hence 2 litres of water can be released. This water is necessary for cleaning the inner walls of the bowl. This water too gets discharged behind the liquid waste along with 1 litre water which is there in the bowl because flexible pipe is still straight as the Handle 702 is held down for 3-4 seconds. This holding down of flexible pipe 612 is necessary for flowing out the water just released from flush tank above. Once this water is flushed out, handle could be released.
[00134] In a second action, the user should press the button 800 that releases one Litre water again which will be retained in the base of the bowl. This 2 step action of pressing down the Handle 700 and holding it down for 3-4 seconds has become necessary because, otherwise the flexible pipe 612 rises immediately before all the liquid waste is flushed out. Also releasing of water by pressing Button S manually may be necessary.
[00135] During operation, when solid waste is to be flushed, same procedure as in FIG. 61 can be followed here but instead of handle 700, here handle 702 should be pushed. That in turn presses down the oval plate 618 and consequently plastic pipe 608 presses down the flexible pipe 612 and straightens it. Immediately solid waste collected at the base of the bowl flows out along with one liter water that is already there in the bowl. Pressing down the Handle 702 creates a simultaneous action where, while pressing down the flexible pipe 612, and straitening it, handle 702 also pulls down the lever of button No. 802 from inside through the rope 622 attached from handle to button lever from inside. Notice in FIG. 6J, the rope 622 has pulled down and has become straight. Lever 2 of button 802 is pulled down and T-jack 5a is pushed-up and this in turn has pulled up the rod of syphon pump 628 and hence 2 litres of water is released. This water is necessary for cleaning inner walls of the bowl. This 2L water too gets discharged behind the solid waste and 1L water which is there in the bowl because flexible pipe is straight still as the Handle 2 is held down for 3-4 seconds. This holding down of flexible pipe (21) is necessary for flowing out the water just released from flush tank above. Once this water is flushed out, handle could be released. In a second action, the user should press the button 1 which releases 1L water again which will be retained in the base of the bowl. This 2 step action of pressing down the Handle 1 and holding it down for 3-4 seconds has become necessary because, otherwise the flexible pipe rises immediately before all the solid waste is flowed out. This system could be adapted to Indian/squat type toilets by creating a chamber for flexible pipe as shown in FIG. 6L.
[00136] It should be apparent to those skilled in the art that many more modifications besides those already described are possible without departing from the inventive concepts herein. The inventive subject matter, therefore, is not to be restricted except in the spirit of the appended claims. Moreover, in interpreting both the specification and the claims, all terms should be interpreted in the broadest possible manner consistent with the context. In particular, the terms "comprises" and "comprising" should be interpreted as referring to elements, components, or steps in a non-exclusive manner, indicating that the referenced elements, components, or steps may be present, or utilized, or combined with other elements, components, or steps that are not expressly referenced. Where the specification claims refers to at least one of something selected from the group consisting of A, B, C ....and N, the text should be interpreted as requiring only one element from the group, not A plus N, or B plus N, etc. The foregoing description of the specific embodiments will so fully reveal the general nature of the embodiments herein that others can, by applying current knowledge, readily modify and/or adapt for various applications such specific embodiments without departing from the generic concept, and, therefore, such adaptations and modifications should and are intended to be comprehended within the meaning and range of equivalents of the disclosed embodiments. It is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation. Therefore, while the embodiments herein have been described in terms of preferred embodiments, those skilled in the art will recognize that the embodiments herein can be practiced with modification within the spirit and scope of the appended claims.
[00137] While embodiments of the present disclosure have been illustrated and described, it will be clear that the disclosure is not limited to these embodiments only. Numerous modifications, changes, variations, substitutions, and equivalents will be apparent to those skilled in the art, without departing from the spirit and scope of the disclosure, as described in the claims.
ADVANTAGES OF THE INVENTION
[00138] The present disclosure provides an improved commode system having low water usage.
[00139] The present disclosure provides the improved commode system with a flushing mechanism which supports in movement of a flexible drainpipe which uses less water than conventional toilet.

Claims

I Claim:
1. A commode system comprising:
a water inlet (106, 108).
a flush tank (302) comprising a tubular protrusion (304), said flush tank (302) being operatively coupled with at least one bowl (320);
a syphon pipe (306) operatively coupled with one or more flush buttons (310, 312), said one or more flush buttons being operatively connected to a movable frame (318) that is further operatively connected to a flexible drainpipe (324) and passes through said tubular protrusion (304) in a manner such that when any one of the one or more flush button (310, 312) is operated to flush water from the at least one bowl (320), the movable frame (318) mechanically moves in same direction as that of flush button (310, 312) so as to cause bend of the flexible drainpipe (324) to temporarily straighten and cause the water from the bend to pass through the drainpipe (324), and to cause the flexible drainpipe (324) to revert back to original bend shape after a pre-defined time period when the movable frame (318) moves back to original position.
2. The commode system as claimed in claim 1, wherein said tubular protrusion 304 is of a shape selected from any or a combination of a tube shaped lump, tube like protrusion, and cylindrical shape lump.
3. The commode system as claimed in claim 1, wherein said movable frame is a T- shaped frame.
4. The commode system as claimed in claim 1, wherein said water inlet is selected from any or a combination of a ball clock bottom inlet (106) and a ball clock top (108).
5. The commode system as claimed in claim 1, wherein height of said tubular protrusion (304), when not depressed by lid of said flush tank, is greater than that of said flush tank.
6. The commode system as claimed in claim 1, wherein the one or more flush buttons (310, 312) are printed / embossed with S and L letters to identify the flush buttons, wherein the S letter is printed on the flush button to flush liquid waste, and the L letter is printed on the flush button to flush solid waste.
7. The commode system as claimed in claim 1, wherein flushing mechanism is linked to the drainpipe (324) through a connecting pipe, wherein lower end of the connecting pipe comprises a mechanism for clasping the drainpipe, said mechanism comprising a plastic ring (322) enclosing/holding the drainpipe that is connected to the connecting pipe to convert the shape of drainpipe 324.
8. The commode system as claimed in claim 1, wherein when said system is not in use, said one or more flush buttons stay raised-up with the support of springs (308, 314) below them, based on which pipe of the T-shaped frame (318) also stays raised up with the support of spring under its T head so as to enable the drainpipe (324) also to stay in P-bend shape, there-by retaining required quantity of water in the commode.
9. The commode system as claimed in claim 1, wherein when liquid waste is to be flushed, handle (700) is pressed down so as to straighten the flexible pipe 324/612 and enable liquid waste collected at the bowl (320) to flow out along with a pre-defined amount of water that is already there in the bowl, wherein pressing of the handle 700 creates a simultaneous action where handle 700 also pulls down lever of a first button 310/800 from inside through a rope (624) attached from the handle 700 to first button lever from inside so as to release a second pre-defined quantity of water to be released to clean inner walls of the bowl.
10. The commode system as claimed in claim 1, wherein when sold waste is to be flushed, second handle (702) is pressed down so as to straighten the flexible pipe 324/612 and enable the solid waste collected at the bowl (320) to flow out along with a third pre-defined amount of water that is already there in the bowl, wherein pressing of the handle 702 creates a simultaneous action where the handle 702 also pulls down lever of a second button 312/802 from inside through a second rope (626) attached from the second handle 702 to second button lever from inside so as to release a fourth pre-defined quantity of water to be released to clean inner walls of the bowl.
PCT/IB2018/057596 2017-09-29 2018-09-29 Low water usage flush toilet system and method of operation thereof WO2019064282A1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110258734A (en) * 2019-07-16 2019-09-20 王磊 A kind of retractable multi-function pan closet

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US5933873A (en) * 1997-01-08 1999-08-10 The Burton Corporation Identification display system and method therefor
EP2321476B1 (en) * 2008-07-24 2014-08-13 Thomas Dudley Limited Cistern draining apparatus with movable siphon
WO2014139541A1 (en) * 2013-03-15 2014-09-18 Shaaban Tarek Mohamad Toilet with a dual flush

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5933873A (en) * 1997-01-08 1999-08-10 The Burton Corporation Identification display system and method therefor
EP2321476B1 (en) * 2008-07-24 2014-08-13 Thomas Dudley Limited Cistern draining apparatus with movable siphon
WO2014139541A1 (en) * 2013-03-15 2014-09-18 Shaaban Tarek Mohamad Toilet with a dual flush

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110258734A (en) * 2019-07-16 2019-09-20 王磊 A kind of retractable multi-function pan closet

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