US20070240253A1 - Fluid Dispensing Device - Google Patents
Fluid Dispensing Device Download PDFInfo
- Publication number
- US20070240253A1 US20070240253A1 US10/595,356 US59535602A US2007240253A1 US 20070240253 A1 US20070240253 A1 US 20070240253A1 US 59535602 A US59535602 A US 59535602A US 2007240253 A1 US2007240253 A1 US 2007240253A1
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- US
- United States
- Prior art keywords
- chemical
- toilet
- dispensing mechanism
- water
- dispensing
- Prior art date
- Legal status (The legal status 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 status listed.)
- Abandoned
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D9/00—Sanitary or other accessories for lavatories ; Devices for cleaning or disinfecting the toilet room or the toilet bowl; Devices for eliminating smells
- E03D9/02—Devices adding a disinfecting, deodorising, or cleaning agent to the water while flushing
- E03D9/03—Devices adding a disinfecting, deodorising, or cleaning agent to the water while flushing consisting of a separate container with an outlet through which the agent is introduced into the flushing water, e.g. by suction ; Devices for agents in direct contact with flushing water
- E03D9/033—Devices placed inside or dispensing into the cistern
- E03D9/037—Active dispensers, i.e. comprising a moving dosing element
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D9/00—Sanitary or other accessories for lavatories ; Devices for cleaning or disinfecting the toilet room or the toilet bowl; Devices for eliminating smells
- E03D9/02—Devices adding a disinfecting, deodorising, or cleaning agent to the water while flushing
- E03D2009/028—Devices adding a disinfecting, deodorising, or cleaning agent to the water while flushing using a liquid substance
Definitions
- the present invention relates generally to fluid dispensing devices and, more specifically, to cleaning chemical dispensers for flush toilets.
- the present invention seeks to provide a chemical dispenser for a flush toilet that is simple and inexpensive to manufacture, easy to install in existing toilets, and that provides a controlled dosage of chemical each time the toilet is flushed.
- a chemical dispenser for use with a flush toilet including:
- the dispensing mechanism is driven by the pressure of water flowing into the water storage tank of the toilet.
- the dispensing mechanism includes apparatus for producing an increase in pressure within the dispensing mechanism in response to the refilling of the water storage tank of the toilet after flushing, and for dispensing a predetermined quantity of the chemical into the flushing water of the toilet each time the toilet is flushed.
- FIG. 1 is a representation of a chemical dispenser for a flush toilet, constructed and operative in accordance with a preferred embodiment of the present invention
- FIGS. 2A and 2B are representations, in two operative states: a filling state and a dispensing state, respectively; of a dispensing mechanism of a chemical dispenser for a flush toilet, constructed and operative in accordance with an alternative preferred embodiment of the present invention;
- FIG. 3 is a representation of a chemical dispenser for a flush toilet constructed and operative in accordance with a further embodiment of the present invention
- FIG. 4 is a representation of a chemical dispenser for a flush toilet constructed and operative in accordance with a further preferred embodiment of the present invention.
- FIG. 5 is shown a representation of a chemical dispenser for a flush toilet constructed and operative in accordance with an additional preferred embodiment of the present invention.
- Chemical dispenser 100 includes chemical storage chamber 101 , which has a removable stopper 103 to allow chamber 101 to be filled with the chemical to be dispensed.
- Chemical storage chamber 101 is mounted on toilet tank 120 via supply tube 109 , connecting sleeve 104 , and mounting ring 106 .
- Threaded ring 107 advantageously provides pressure on mounting ring 106 against connecting sleeve 104 and gasket 105 to fix chemical dispenser 100 in place with a fluid-tight seal.
- Dispensing mechanism 150 feeds dispensing mechanism, referred to generally as 150 , via entry hole 123 .
- Dispensing mechanism 150 in the present embodiment, is located within toilet tank 120 .
- float 118 and attached rod 115 drive valve seat 114 upward in cylinder 127 so that entry hole 123 is uncovered, allowing the chemical to flow from storage chamber 101 via supply tube 109 and entry hole 123 into cylinder 127 , filling it and upper chamber 129 .
- Venting valve 111 releases the air pressure in upper chamber 129 so that it can fill with the chemical until float portion 131 of venting valve 111 rises to seal with upper stopper 110 of cylinder 127 , which further serves to prevent leakage of the chemical via venting valve 111 .
- Ring 112 on the upper portion of venting valve 111 prevents the valve from falling into upper chamber 127 , without sealing the venting air flow. This arrangement ensures that a predetermined amount or dosage of the chemical will be held in cylinder 127 and upper chamber 129 for dispensing into the water in toilet tank 120 .
- valve seat 114 When the toilet is flushed, the water level in toilet tank 120 is below dispensing mechanism 150 , so that float 118 and attached rod 115 are driven downward by gravity and by spring 113 . Valve seat 114 is also lowered by gravity and by spring 113 , covering entry hole 123 and uncovering exit hole 125 to release the chemical into toilet tank 120 . As toilet tank 120 refills, float 118 and attached rod 115 will again rise, driving valve seat 114 upward to seal exit hole 125 and to uncover entry hole 123 as described above, thereby preparing another measured dose of the chemical for release the next time the toilet is flushed.
- FIGS. 2A and 2B there are shown representations in two operative states: a filling state and a dispensing state, respectively, of a dispensing mechanism 250 of a chemical dispenser for a flush toilet, constructed and operative in accordance with an alternative preferred embodiment of the present invention.
- dispensing mechanism 250 takes the place of dispensing mechanism 150 of the embodiment shown in FIG. 1 , with a similar chemical storage chamber, mounting, and supply tube 209 .
- dispensing mechanism 250 When the toilet tank is empty, dispensing mechanism 250 is in its filling state as shown in FIG. 2A .
- Float 218 lowers, as shown in FIG. 2A , together with attached rod 215 and upper and lower portions of piston 231 , 214 , respectively; which are further forced downward by lower spring 216 so that lower portion 214 of the piston uncovers entry hole 223 thereby allowing the chemical to enter the central chamber of dispensing mechanism 250 via supply tube 209 due to the force of gravity.
- Upper spring 213 maintains a constant spacing between upper 231 and lower 214 portions of the piston, thereby fixing the volume available in dispensing mechanism 250 for holding the chemical and hence, the dosage thereof.
- upper portion 231 of the piston covers exit hole 225 , thereby preventing the chemical from leaving dispensing mechanism 250 and ensuring a constant dosage of the chemical will be ready for dispensing.
- dispensing mechanism 250 When the toilet tank fills, dispensing mechanism 250 is driven by float 218 into its dispensing state, as shown in FIG. 2B .
- Float 218 and attached rod 215 drive the piston upward so that its lower portion 214 covers entry hole 223 , preventing further entry of the chemical into the chamber, and so that its upper portion uncovers exit hole 225 , releasing the measured dose of the chemical into the toilet tank thereby.
- Chemical dispenser 300 includes chemical storage chamber 301 , which has a removable stopper 303 to allow chamber 301 to be filled with the chemical to be dispensed.
- Chemical dispenser 300 is connected directly to dispensing mechanism, referred to generally as 350 , by which it is mounted on toilet tank 320 , via an existing hole therein, similar to the mounting of chemical dispenser 100 explained above in relationship to FIG. 1 .
- Rod 315 has a sloped indentation or slot 331 in which rides eccentric protrusion 335 of valve seat 314 .
- eccentric protrusion 335 of valve seat 314 is driven all the way into sloped slot 331 by spring 313 to its leftmost position as shown in the drawing.
- valve seat 314 In that position, the other end 337 (rightmost in the drawing) of valve seat 314 , which is slotted, thinned, or tapered, is positioned in the end cap 316 of dispensing mechanism 350 , thereby allowing the chemical in storage chamber 301 to flow, driven by gravity, into cylinder 327 of dispensing mechanism 350 via the slots in end portion 337 , thus filling it.
- wide end 339 of valve seat 314 (leftmost in the drawing) will sit in the end of cylinder 327 , thus preventing exit of the chemical.
- Cylinder 327 preferably has a venting tube 341 aligned with slot 345 in wide end 339 of valve seat 314 to allow cylinder 327 to fill without resistance due to air pressure. Dosage of the chemical is determined by the internal volume of cylinder 327 .
- Chemical dispenser 400 is contained within chemical storage chamber 401 and is typically mounted on toilet tank 420 on an existing hole therein, as explained above with respect to the embodiment shown in FIG. 1 .
- valve seal cylinder 414 When valve seal cylinder 414 reaches the end of mixing chamber 429 , entry holes 423 from chemical storage chamber 401 are uncovered, allowing the chemical to enter mixing chamber 429 and mix with the flowing water that flows through slots 424 in valve seal cylinder 414 before it passes into toilet tank 420 via exit hole 425 .
- the flow rate of the chemical into mixing chamber 429 and, hence, the amount of chemical added to the water flow is preferably controlled by chemical flow control screw 445 as well as by the rate of water flow through dispensing mechanism 450 .
- Chemical dispenser 500 is contained within chemical storage chamber 501 and is typically mounted on toilet tank 520 on an existing hole therein, as explained above with respect to the embodiment shown in FIG. 1 .
- Chemical storage chamber 501 is connected to dispensing cup 529 via vertical chemical transfer tube 535 .
- Dispensing cup 529 is connected to toilet tank 520 via chemical exit tube 525 and air tube 545 .
- chemical storage chamber 501 is airtight, including stopper 503 .
- stopper 503 As a result, when chemical dispensing cup 529 contains a measured dose of the chemical, as shown in the drawing, and the bottom end of vertical chemical transfer tube 535 is immersed in the chemical, no additional chemical will flow from chemical storage chamber 501 via chemical transfer tube 535 into dispensing cup 529 .
- the water level in toilet tank 520 is below the end of air tube 545 extending therein, and there is no air pressure to drive the chemical from dispensing cup 529 into toilet tank 520 via chemical exit tube 525 .
- the water level therein reaches the end of air tube 545 and continues to rise until toilet tank 520 is full.
- the water level in air tube 545 also rises, thereby compressing the air therein and in the upper portion of dispensing cup 529 .
- the increased air pressure in dispensing cup 529 drives the measured dose of chemical in the lower portion thereof out into toilet tank 520 via chemical exit tube 525 .
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- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)
Abstract
A chemical dispenser (100) for use with a flush toilet includes a chemical storage chamber (101) for a chemical which is to be added to the flushing water of the toilet, a mounting apparatus that allows the chemical dispenser to be easily mounted on an existing opening in the water storage tank (120) of the toilet, and a dispensing mechanism (150) that dispenses a predetermined quantity of the chemical into the flushing water of the toilet each time the toilet is flushed.
Description
- The present invention relates generally to fluid dispensing devices and, more specifically, to cleaning chemical dispensers for flush toilets.
- Many devices have been proposed and manufactured for automatic dispensing of cleaning chemicals into flush toilets. Typical examples from recent prior art are U.S. Pat. No. 5,252,957 to Campau, U.S. Pat. No. 5,488,742 to Liao, and U.S. Pat. No. 6,151,722 to Lubrano. While the inventions therein disclosed apparently meet their stated objectives, none of the examples of the prior art have the combined advantages of simplicity and ease of manufacture, easy installation, and dosage control with resulting economy in chemical usage.
- The present invention seeks to provide a chemical dispenser for a flush toilet that is simple and inexpensive to manufacture, easy to install in existing toilets, and that provides a controlled dosage of chemical each time the toilet is flushed.
- There is thus provided, in accordance with a preferred embodiment of the invention, a chemical dispenser for use with a flush toilet including:
-
- a chemical storage chamber for a chemical which is to be added to the flushing water of the toilet;
- mounting apparatus fabricated to allow the chemical dispenser to be readily mountable on an existing opening in the water storage tank of the toilet; and
- a dispensing mechanism operative to dispense a predetermined quantity of the chemical into the flushing water of the toilet each time the toilet is flushed.
Further in accordance with a preferred embodiment of the invention, the dispensing mechanism includes a float located in the water storage tank of the toilet operative to drive the dispensing mechanism as it rises and falls with the water level in the water storage tank of the toilet.
- In accordance with a further preferred embodiment of the invention, the dispensing mechanism is driven by the pressure of water flowing into the water storage tank of the toilet.
- In accordance with an additional preferred embodiment of the invention, the dispensing mechanism includes apparatus for producing an increase in pressure within the dispensing mechanism in response to the refilling of the water storage tank of the toilet after flushing, and for dispensing a predetermined quantity of the chemical into the flushing water of the toilet each time the toilet is flushed.
- The present invention will be more fully understood and appreciated from the following detailed description, taken in conjunction with the drawings, in which:
-
FIG. 1 is a representation of a chemical dispenser for a flush toilet, constructed and operative in accordance with a preferred embodiment of the present invention; -
FIGS. 2A and 2B are representations, in two operative states: a filling state and a dispensing state, respectively; of a dispensing mechanism of a chemical dispenser for a flush toilet, constructed and operative in accordance with an alternative preferred embodiment of the present invention; -
FIG. 3 is a representation of a chemical dispenser for a flush toilet constructed and operative in accordance with a further embodiment of the present invention; -
FIG. 4 is a representation of a chemical dispenser for a flush toilet constructed and operative in accordance with a further preferred embodiment of the present invention; and -
FIG. 5 is shown a representation of a chemical dispenser for a flush toilet constructed and operative in accordance with an additional preferred embodiment of the present invention. - Referring now to
FIG. 1 , there is shown a representation of a chemical dispenser for a flush toilet, referred to generally as 100, constructed and operative in accordance with a preferred embodiment of the present invention.Chemical dispenser 100 includeschemical storage chamber 101, which has aremovable stopper 103 to allowchamber 101 to be filled with the chemical to be dispensed.Chemical storage chamber 101 is mounted ontoilet tank 120 viasupply tube 109, connectingsleeve 104, andmounting ring 106. Threadedring 107 advantageously provides pressure on mountingring 106 against connectingsleeve 104 and gasket 105 to fixchemical dispenser 100 in place with a fluid-tight seal. Note the angle ofsupply tube 109, which allows the chemical instorage chamber 101 to flow into the device due to gravity. It should be further noted that since most toilet tanks are produced with two holes to provide alternative positioning of the water input valve,chemical dispenser 100 can be readily installed on most toilet tanks without the need to drill a new hole therein. -
Supply tube 109 feeds dispensing mechanism, referred to generally as 150, viaentry hole 123.Dispensing mechanism 150, in the present embodiment, is located withintoilet tank 120. Whentoilet tank 120 is full, as shown in the drawing,float 118 and attachedrod 115drive valve seat 114 upward incylinder 127 so thatentry hole 123 is uncovered, allowing the chemical to flow fromstorage chamber 101 viasupply tube 109 andentry hole 123 intocylinder 127, filling it andupper chamber 129.Venting valve 111 releases the air pressure inupper chamber 129 so that it can fill with the chemical untilfloat portion 131 ofventing valve 111 rises to seal withupper stopper 110 ofcylinder 127, which further serves to prevent leakage of the chemical viaventing valve 111.Ring 112 on the upper portion ofventing valve 111 prevents the valve from falling intoupper chamber 127, without sealing the venting air flow. This arrangement ensures that a predetermined amount or dosage of the chemical will be held incylinder 127 andupper chamber 129 for dispensing into the water intoilet tank 120. - When the toilet is flushed, the water level in
toilet tank 120 is belowdispensing mechanism 150, so thatfloat 118 and attachedrod 115 are driven downward by gravity and byspring 113. Valveseat 114 is also lowered by gravity and byspring 113, coveringentry hole 123 and uncoveringexit hole 125 to release the chemical intotoilet tank 120. Astoilet tank 120 refills,float 118 and attachedrod 115 will again rise, drivingvalve seat 114 upward to sealexit hole 125 and to uncoverentry hole 123 as described above, thereby preparing another measured dose of the chemical for release the next time the toilet is flushed. - Referring now to
FIGS. 2A and 2B , there are shown representations in two operative states: a filling state and a dispensing state, respectively, of adispensing mechanism 250 of a chemical dispenser for a flush toilet, constructed and operative in accordance with an alternative preferred embodiment of the present invention. In the present embodiment,dispensing mechanism 250 takes the place ofdispensing mechanism 150 of the embodiment shown inFIG. 1 , with a similar chemical storage chamber, mounting, andsupply tube 209. - When the toilet tank is empty,
dispensing mechanism 250 is in its filling state as shown inFIG. 2A .Float 218 lowers, as shown inFIG. 2A , together with attachedrod 215 and upper and lower portions ofpiston lower spring 216 so thatlower portion 214 of the piston uncoversentry hole 223 thereby allowing the chemical to enter the central chamber ofdispensing mechanism 250 viasupply tube 209 due to the force of gravity.Upper spring 213 maintains a constant spacing between upper 231 and lower 214 portions of the piston, thereby fixing the volume available indispensing mechanism 250 for holding the chemical and hence, the dosage thereof. At the same time,upper portion 231 of the piston coversexit hole 225, thereby preventing the chemical from leavingdispensing mechanism 250 and ensuring a constant dosage of the chemical will be ready for dispensing. - When the toilet tank fills,
dispensing mechanism 250 is driven byfloat 218 into its dispensing state, as shown inFIG. 2B . Float 218 and attachedrod 215 drive the piston upward so that itslower portion 214 coversentry hole 223, preventing further entry of the chemical into the chamber, and so that its upper portion uncoversexit hole 225, releasing the measured dose of the chemical into the toilet tank thereby. - Referring now to
FIG. 3 , there is shown a representation of a chemical dispenser for a flush toilet, referred to generally as 300, constructed and operative in accordance with a further embodiment of the present invention.Chemical dispenser 300 includeschemical storage chamber 301, which has aremovable stopper 303 to allowchamber 301 to be filled with the chemical to be dispensed.Chemical dispenser 300 is connected directly to dispensing mechanism, referred to generally as 350, by which it is mounted ontoilet tank 320, via an existing hole therein, similar to the mounting ofchemical dispenser 100 explained above in relationship toFIG. 1 . - When
toilet tank 320 is full,float 318 rises, driving attachedrod 315 upwards throughdispensing mechanism 350. Rod 315 has a sloped indentation orslot 331 in which rideseccentric protrusion 335 ofvalve seat 314. Whenrod 315 is in its uppermost position, as shown inFIG. 3 ,eccentric protrusion 335 ofvalve seat 314 is driven all the way intosloped slot 331 byspring 313 to its leftmost position as shown in the drawing. In that position, the other end 337 (rightmost in the drawing) ofvalve seat 314, which is slotted, thinned, or tapered, is positioned in theend cap 316 ofdispensing mechanism 350, thereby allowing the chemical instorage chamber 301 to flow, driven by gravity, intocylinder 327 ofdispensing mechanism 350 via the slots inend portion 337, thus filling it. At the same time,wide end 339 of valve seat 314 (leftmost in the drawing) will sit in the end ofcylinder 327, thus preventing exit of the chemical.Cylinder 327 preferably has aventing tube 341 aligned withslot 345 inwide end 339 ofvalve seat 314 to allowcylinder 327 to fill without resistance due to air pressure. Dosage of the chemical is determined by the internal volume ofcylinder 327. - When the toilet is flushed, the water level in
toilet tank 320 drops, as will float 318 withrod 315, which are further driven downward byspring 311.Eccentric protrusion 335 ofvalve seat 314 is driven by slopedslot 331 to its rightmost position as shown in the drawing, simultaneously sealingend cap 316 of dispensingmechanism 350 with the cylindrical portion ofvalve seat 314, thereby preventing further flow of the chemical into cylinder; and offsettingwide end 339 ofvalve seat 314 from the end ofcylinder 327, thereby allowing the chemical to exitdispensing mechanism 350 fortoilet tank 320 viaslot 345 invalve seat 314 andexit hole 325. - Referring now to
FIG. 4 , there is shown a representation of a chemical dispenser for a flush toilet, referred to generally as 400, constructed and operative in accordance with a further preferred embodiment of the present invention.Chemical dispenser 400 is contained withinchemical storage chamber 401 and is typically mounted ontoilet tank 420 on an existing hole therein, as explained above with respect to the embodiment shown inFIG. 1 . - When the toilet is flushed and water starts flowing into
toilet tank 420 to refill it, the water passes, driven by the local water pressure, throughchemical dispenser 400 viawater inlet tube 421 from the toilet tank fill valve (not shown) which is attached toinlet sleeve 422 ofchemical dispenser 400. The fluid flows throughlower conduit 425 into the dispensing mechanism, referred to generally as 450, and impels drivingsleeve 435 to the left, as shown in the drawing, until it catchesvalve seal cylinder 414 byshoulder ring 437 and drives it to the end of mixingchamber 429. Whenvalve seal cylinder 414 reaches the end of mixingchamber 429, entry holes 423 fromchemical storage chamber 401 are uncovered, allowing the chemical to enter mixingchamber 429 and mix with the flowing water that flows throughslots 424 invalve seal cylinder 414 before it passes intotoilet tank 420 viaexit hole 425. The flow rate of the chemical into mixingchamber 429 and, hence, the amount of chemical added to the water flow is preferably controlled by chemicalflow control screw 445 as well as by the rate of water flow throughdispensing mechanism 450. - As
toilet tank 420 fills, the water flow slows andspring 413pushes driving sleeve 435, which is no longer compelled by the pressure of the water flow, back to the right until it catchesend ring 439 ofvalve seal cylinder 414 and drives it until it covers entry holes 423 fromchemical storage chamber 401, thereby cutting off further entry of the chemical intodispensing mechanism 450 until the next time the toilet is flushed. - Referring now to
FIG. 5 , there is shown a representation of a chemical dispenser for a flush toilet, referred to generally as 500, constructed and operative in accordance with an additional preferred embodiment of the present invention.Chemical dispenser 500 is contained withinchemical storage chamber 501 and is typically mounted ontoilet tank 520 on an existing hole therein, as explained above with respect to the embodiment shown inFIG. 1 .Chemical storage chamber 501 is connected to dispensingcup 529 via verticalchemical transfer tube 535.Dispensing cup 529 is connected totoilet tank 520 viachemical exit tube 525 andair tube 545. - In the present preferred embodiment,
chemical storage chamber 501 is airtight, includingstopper 503. As a result, whenchemical dispensing cup 529 contains a measured dose of the chemical, as shown in the drawing, and the bottom end of verticalchemical transfer tube 535 is immersed in the chemical, no additional chemical will flow fromchemical storage chamber 501 viachemical transfer tube 535 into dispensingcup 529. Any time after the toilet has been flushed, the water level intoilet tank 520 is below the end ofair tube 545 extending therein, and there is no air pressure to drive the chemical from dispensingcup 529 intotoilet tank 520 viachemical exit tube 525. Astoilet tank 520 fills, the water level therein reaches the end ofair tube 545 and continues to rise untiltoilet tank 520 is full. The water level inair tube 545 also rises, thereby compressing the air therein and in the upper portion of dispensingcup 529. The increased air pressure in dispensingcup 529 drives the measured dose of chemical in the lower portion thereof out intotoilet tank 520 viachemical exit tube 525. - With dispensing
cup 529 emptied, the lower end ofchemical transfer tube 535 is no longer immersed, and it is possible for air bubbles to rise viachemical transfer tube 535 and reachchemical storage chamber 501. As a result, some of the chemical flows downchemical transfer tube 535 into dispensingcup 529 until the bottom end of verticalchemical transfer tube 535 is immersed in the chemical, thereby cutting off further flow of the chemical, as described above, and ensuring that a predetermined amount or dosage of the chemical will be stored in dispensingcup 529. It should be noted that as the measured dose of chemical, which is determined by the volume of air inair tube 545 and the air pressure developed therein, as described above, flows out of dispensingcup 529,chemical exit tube 525 will allow air pressure equalization in dispensingcup 529, even though the end ofair tube 545 intoilet tank 520 is immersed in water, so there will be no buildup of air pressure in dispensingcup 529. Thuschemical dispenser 500 is in a stable state, with dispensingcup 529 containing the full measured dose of chemical, andtoilet tank 520 is filled with water, until the next time the toilet is flushed. - It will further be appreciated by persons skilled in the art that the scope of the present invention is not limited by what has been specifically shown and described hereinabove, merely by way of example. Rather, the scope of the present invention is defined solely by the claims, which follow.
Claims (4)
1. For use with a flush toilet, a chemical dispenser including:
a chemical storage chamber for a chemical which is desired to be added to the flushing water of the toilet;
mounting apparatus fabricated to allow said chemical dispenser to be readily mountable on an existing opening in the water storage tank of the toilet; and
a dispensing mechanism operative to dispense a predetermined quantity of the chemical into the flushing water of the toilet each time the toilet is flushed.
2. A dispenser according to claim 1 , wherein said dispensing mechanism includes a float located in the water storage tank of the toilet operative to drive said dispensing mechanism as it rises and falls with the water level in the water storage tank of the toilet.
3. A dispenser according to claim 1 , wherein said dispensing mechanism is driven by the pressure of water flowing into the water storage tank of the toilet.
4. A dispenser according to claim 1 , wherein said dispensing mechanism includes apparatus for producing an increase in pressure within said dispensing mechanism in response to the refilling of the water storage tank of the toilet after flushing, and for dispensing a predetermined quantity of the chemical into the flushing water of the toilet each time the toilet is flushed.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IL145927A IL145927A (en) | 2001-10-15 | 2001-10-15 | Fluid dispensing device |
IL145927 | 2001-10-15 | ||
PCT/IL2002/000827 WO2003033830A2 (en) | 2001-10-15 | 2002-10-14 | Fluid dispensing device |
Publications (1)
Publication Number | Publication Date |
---|---|
US20070240253A1 true US20070240253A1 (en) | 2007-10-18 |
Family
ID=11075831
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/595,356 Abandoned US20070240253A1 (en) | 2001-10-15 | 2002-10-14 | Fluid Dispensing Device |
Country Status (3)
Country | Link |
---|---|
US (1) | US20070240253A1 (en) |
IL (1) | IL145927A (en) |
WO (1) | WO2003033830A2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120073036A1 (en) * | 2010-09-24 | 2012-03-29 | Jean-Pierre Rizzo | Adjustable-volume metering pump automatic dispenser device |
US20150128336A1 (en) * | 2013-11-12 | 2015-05-14 | Nir Yeshua | Toilet cleaning system and a method thereof |
US11434632B1 (en) * | 2021-06-24 | 2022-09-06 | James M. Irion | Automatic toilet cleaning apparatus |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2402945B (en) | 2003-06-16 | 2008-02-20 | Jeyes Group Ltd | A liquid dispensing device |
FR2874393B1 (en) * | 2004-08-20 | 2006-10-27 | Manuel Perez | AUTOMATIC MAINTENANCE PRODUCT DOSING SYSTEM FOR HUNTING TANKS WC |
ES2725303T3 (en) * | 2013-12-20 | 2019-09-23 | Campos Manuel Losada | Product dispenser in a tank, or similar |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2972436A (en) * | 1957-10-31 | 1961-02-21 | American Radiator & Standard | Dispenser for injecting liquid into a container |
US3890657A (en) * | 1974-05-16 | 1975-06-24 | Roy M Gray | Chemical dispenser for toilet |
US3999226A (en) * | 1975-06-23 | 1976-12-28 | Tobin Wolf | Toilet sanitizer with disposable container |
US4168550A (en) * | 1978-11-07 | 1979-09-25 | International Flavors & Fragrances Inc. | Cleanser and/or sanitizer and aroma emitting attachment for toilets |
US4696414A (en) * | 1984-11-21 | 1987-09-29 | Huat Mok K | Discharge assembly |
US4852191A (en) * | 1988-05-17 | 1989-08-01 | Felicino Giglio | Toilet |
US5718261A (en) * | 1996-01-26 | 1998-02-17 | Bobson Hygiene International Inc. | Cleaning solution dispenser for use in a water tank, and water tank capable of discharging mixture of water and cleaning solution |
-
2001
- 2001-10-15 IL IL145927A patent/IL145927A/en not_active IP Right Cessation
-
2002
- 2002-10-14 WO PCT/IL2002/000827 patent/WO2003033830A2/en active Application Filing
- 2002-10-14 US US10/595,356 patent/US20070240253A1/en not_active Abandoned
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2972436A (en) * | 1957-10-31 | 1961-02-21 | American Radiator & Standard | Dispenser for injecting liquid into a container |
US3890657A (en) * | 1974-05-16 | 1975-06-24 | Roy M Gray | Chemical dispenser for toilet |
US3999226A (en) * | 1975-06-23 | 1976-12-28 | Tobin Wolf | Toilet sanitizer with disposable container |
US4168550A (en) * | 1978-11-07 | 1979-09-25 | International Flavors & Fragrances Inc. | Cleanser and/or sanitizer and aroma emitting attachment for toilets |
US4696414A (en) * | 1984-11-21 | 1987-09-29 | Huat Mok K | Discharge assembly |
US4852191A (en) * | 1988-05-17 | 1989-08-01 | Felicino Giglio | Toilet |
US5718261A (en) * | 1996-01-26 | 1998-02-17 | Bobson Hygiene International Inc. | Cleaning solution dispenser for use in a water tank, and water tank capable of discharging mixture of water and cleaning solution |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120073036A1 (en) * | 2010-09-24 | 2012-03-29 | Jean-Pierre Rizzo | Adjustable-volume metering pump automatic dispenser device |
US20150128336A1 (en) * | 2013-11-12 | 2015-05-14 | Nir Yeshua | Toilet cleaning system and a method thereof |
US11434632B1 (en) * | 2021-06-24 | 2022-09-06 | James M. Irion | Automatic toilet cleaning apparatus |
Also Published As
Publication number | Publication date |
---|---|
IL145927A0 (en) | 2002-07-25 |
WO2003033830A2 (en) | 2003-04-24 |
IL145927A (en) | 2009-02-11 |
WO2003033830A3 (en) | 2004-03-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |