CA1290905C - Water saving attachment for a flush toilet - Google Patents
Water saving attachment for a flush toiletInfo
- Publication number
- CA1290905C CA1290905C CA000580508A CA580508A CA1290905C CA 1290905 C CA1290905 C CA 1290905C CA 000580508 A CA000580508 A CA 000580508A CA 580508 A CA580508 A CA 580508A CA 1290905 C CA1290905 C CA 1290905C
- Authority
- CA
- Canada
- Prior art keywords
- wall
- clip
- float
- weight
- tank
- 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.)
- Expired - Lifetime
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D1/00—Water flushing devices with cisterns ; Setting up a range of flushing devices or water-closets; Combinations of several flushing devices
- E03D1/30—Valves for high or low level cisterns; Their arrangement ; Flushing mechanisms in the cistern, optionally with provisions for a pre-or a post- flushing and for cutting off the flushing mechanism in case of leakage
- E03D1/304—Valves for high or low level cisterns; Their arrangement ; Flushing mechanisms in the cistern, optionally with provisions for a pre-or a post- flushing and for cutting off the flushing mechanism in case of leakage with valves with own buoyancy
- E03D1/306—Valves for high or low level cisterns; Their arrangement ; Flushing mechanisms in the cistern, optionally with provisions for a pre-or a post- flushing and for cutting off the flushing mechanism in case of leakage with valves with own buoyancy with articulated valves
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D1/00—Water flushing devices with cisterns ; Setting up a range of flushing devices or water-closets; Combinations of several flushing devices
- E03D1/02—High-level flushing systems
- E03D1/14—Cisterns discharging variable quantities of water also cisterns with bell siphons in combination with flushing valves
- E03D1/142—Cisterns discharging variable quantities of water also cisterns with bell siphons in combination with flushing valves in cisterns with flushing valves
- E03D1/144—Cisterns discharging variable quantities of water also cisterns with bell siphons in combination with flushing valves in cisterns with flushing valves having a single flush outlet and an additional float for delaying the valve closure
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/40—Protecting water resources
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Sanitary Device For Flush Toilet (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A water saving attachment is described for use in a conventional assembly for flushing a toilet. The attach-ment consists of a weight attached to a clip. The clip is formed of resilient material and has an arcuate inner wall.
The clip may be snapped into and out of engagement with the air float of the flushing assembly. When the clip is en-gaged to the float, it partially encircles and frictionally and slideably engages the outer wall of the float. The position of the weight in the tank can be adjusted by rotating the clip about the outer wall of the float.
A water saving attachment is described for use in a conventional assembly for flushing a toilet. The attach-ment consists of a weight attached to a clip. The clip is formed of resilient material and has an arcuate inner wall.
The clip may be snapped into and out of engagement with the air float of the flushing assembly. When the clip is en-gaged to the float, it partially encircles and frictionally and slideably engages the outer wall of the float. The position of the weight in the tank can be adjusted by rotating the clip about the outer wall of the float.
Description
~2909Q~;
CROSS REFERENCES TO PRIOR A~T
U.S. patent No. 2,773,268 - Flush Valve, ~lurko et al, issued December 11, 1956.
U.S. patent No. 3,839,746 - Dual Flush I'oilets, Kowalksi, issued October 8, 1974.
U.S. patent No. 3,908,203 - Toilet Flush System, Jackson, issued September 30, 1975.
U.S. patent ~o. 4,032,997 - Flush Toilet Access-ory, Phripp et al, issued July 5, 1977.
U.S. patent ~o. 4,114,204 - Water-Flow Device and Method, ~lach, issued September 19, 1978.
U.S. patent No. 4,134,165 - Flush Toilet Access-ory, Phripp et al., issued January 16, 1979.
U.S. patent No. 4,183,107 - Variable Flush Toilet Valve Mechanism, Hare et al., issued January 15, 1980.
U.S. patent No. 4,224,703 - Flush Tank Valve Clo-ser, Makhobey, issued September 30, 1980.
U.S. patent No. 4,388,736 - Tank Flushing Means, Roosa et al., issued June 21, 1983.
U.S. patent No. 4,391,003 - Water-Saving Device for Use with Toilets, Talerico et al, issued July 5, 1983.
BACKGROUND OF THE INVENTION
This invention relates to flush toilets and more particularly to an assembly which attaches to a convent-ional flush toilet and which permits adjustment in the amount of water discharged from the tank during each flush.
~90905 A well recognized fault of conventional flush toilets, particularly those of older manufacture, is that they consume too much water during each flush. Such toilets were manufactured at a time when water was abundant and when little or no thought was given to the necessity of restricting the amount of water required to flush the toilet.
Water now is now no longer abundant. In many localities measures have been adopted to restrict the amount of water consumed. Measures such as levies on the amount of water consumed and on the amount of effluent discharged into sewers are now commonplace.
Most toilets are now designed to consume much less water than toilets of older design. Toilets tend to last for many years however and there are many still in use that were built years ago. There is a need for effective ways of reducing the amount of water consumed by such toilets.
Various ways of reducing the amount of water con-sumed during a flush are known. The most common method is to place a brick in the tank of the toilet. That method is quite effective but may result in a toilet bowl that is incompletely evacuated because of insufficient water in the tank. There is no ready means by which the amount of water can be adjusted in the tank to ensure that there is suff-icient water to evacuate the bowl completely.
1~:90905 Many of the patents referred to above show devices which permit such an acljustment. U.S. patent No. 4,134,165 to Phripp et al. for example describes a device which is attached to the air cylinder or float of a flushing mechan-ism. The position of the device on the float determines the amount of water which discharyes from the tank during each flush. There is provision for adjusting that position so that the amount of discharge can be adjusted to no more than that necessary to evacuate the bowl.
A shortcoming of known water saving devices such as that described in the Phripp et al patent is that the devices cannot be readily attached to a flushing mechanism of conventional design. Modifications must be made in the structure of the flushing mechanism before such devices can be attached to them. Other known devices can only be in-stalled with a degree of skill which is higher than that possessed by most persons.
~ nother shortcoming of many known water saving devices is that they are relatively complicated of con-struction and hence cannot be manufactured cheaply.
SUMMARY OF THE INVENTION
It is an object of this invention to provide a device which permits the adjustment of water which dischar-ges from a toilet during each flush. The device is simple of construction and can be readily installed in a flush toilet of conventional design by a person who does not 0~05 possess special skills~
Another object is to provide a device whichrnay be removably attached to a wide range of sizes of conventional flushing mechanisms.
Another object is to provide a device having means by which its position within the tank of a toilet can be readily adjusted in order to adjust the amount of water discharged from the tank during each flush.
These and other objects are accomplished in an assembly for flushing a toilet and adapted to be mounted within the tank of the toilet, the assembly having a valve mechanism adapted to open and close an outlet through which water discharges from the tank and a cylindrical float attached thereto, the valve mechanism and float being oper-atively connected to each other and adapted to pivot within the tank~ The improvement of the subject invention com-prises a water saving attachment having a clip formed of resilient material and provided with an arcuate inner wall and adapted to partially encircle and to frictionally and slideably engage the outer wall of the float such the clip may be snapped into and out of engagement with the float and its position on the outer wall may be adjusted by rotating the clip about the outer wall, and a weight which is attached to the clip and the position of which in the tank can be adjusted by adjustment of the position of the clip on the outer wall.
~ ~0905 DESCRIPTI()N OF THE DRAWINGS
The invention is described in detail with refer-ence to the accompanying drawings in which:
Figure 1 is an elevation of a conventional flush-ing assembly shown in conjunction with the water saving attachment of the invention;
Figure 2 is an exploded perspective view, in en-larged scale, of the water saving attachment;
Yigure 3 is an end view of the attachment; and Figures 4 and 5 are elevations of the flushing assembly in at the time of commencement of a f lush and prior to completion of the f lush~
C.ike reference parts refer to like parts through-out the description of the drawings.
DESCRIPTION OF THE PREFERRED EMBODIMENT
With reference to Figure 1, the àssembly for flushing a toilet is indicated generally by the numeral 10 and is shown in conjunction with the bottom wall of a tank 11. A valve seat 12 is mounted in an outlet aperture 13 in the bottom wall and a supporting element 14 extends upward-ly from the valve seat. An arm 16 is pivotally connected at 17 to the upper end of element 14. An elastomeric valve member 18 is connected to the arm and is adapted to open and close an outlet pipe 20. The arm also supports a fully enclosed and sealed cylindrical air chamber or float 22 and an upwardly open cylindrical water chamber 24. A chain 26 ~.X90905 is provi~ed to permit the operator to pull upwardly on the arm 16 thus moving it counterclockwise with respect to the column 14. Counterclockwise motion raises the elastomeric valve member fro~ the outlet pipe 20 and initiates the flushing action.
The asse~bly described above is conventional and is described in detail in a number of patents including U.S. patent No. 2,773.26~ to Hurko et al mentioned above.
With reference to Figures 1, 2 and 3, the water saving attachment or improvement of the subject invention, generally 28, includes a clip 3G and a weight 32. The clip has an arcuate cross section and its inside diameter, indicated 30a, is the same as or is slightly greater than the outer diameter of float 22, indicated 22a in Figure 1.
The clip is formed of resilient material such as resilient plastic, stainless steel or the like and may be attached to the float by forcing its lower edges 34a,b against the outer wall of the float to cause the walls of the clip to separate and to snap into contact with the outer wall of the float so that it partially encircles the float as illustrated in Figure l. Since the inner wall of the clip conforms to the shape of the outer wall of the float, the inner wall of the clip makes contact with the outer wall of the float throughout substantially its entire extent.
When the clip is in the position illustrated in ~90905 Figure l, it is firmly attached by friction to the float but its position on the outer wall may be adjusted by rotating it manually about the outer wall . The clip is cut away at 36 so that arm 16 will not interfere with rotation of the clip.
The clip is provided with two pairs of jaws 38, 40 at opposite ends to permit removable attachment of weight 32. Each jaw is semi-circu]ar in shape and is formed of resiliently deformable material. End walls 42,44 are pro-vided at opposite ends of the clip.
Weight 32 is cylindrical in shape and its outer wall conforms to the shape of the inner walls of the jaws.
The weight may be attached to the jaws by pressing the weight against the opening of the jaws to cause the jaws to separate resiliently and to snap into engagement with the weight. The end walls prevent the weight from sliding out of engagement when they are in contact with the jaws.
By means of the resiliently deformable jaws the weight can be removed and replaced by a different weight of greater or lesser weight.
The operation of the water saving attachment is described with reference to Figures 4 and 5. Prior to the flushing of the tank~ the water in the tank is at the level shown in the former Figure. Upon initiation of the flush, valve 1~ is rotated to the position shown in that Figure as chain 26 is pulled upward and water discharges through ()905 outlet pipe 20.
As the level of water falls, the additional mass of weight 32 exerts a clockwise closing torque on the f loat 22 and the valve 1~ will move downwardly toward the opening of pipe 20. ~s soon as the valve is within a predetermined distance of the pipe, the differential pressure of water above and below the valve caused by the movement of the water will add more closing torque and the valve will snap suddenly closed.
~ 7ith reference to Figure 5, the valve is shown in the position immediately before it blocks the flow of water through pipe 20. The level of the water is above the level of the valve.
The position of the weight on the float can be adjusted by rotating it clockwise or counter-clockwise on the outer float wall in the direction of arrow 40. As the position is changed, the moment of the weight about pivot 17 changes with resulting change in the amount of closing torque applied to the valve by the weight. The greater the moment, the more rapidly the valve will close and the less water will discharge through the outlet pipe before the valve closes. Conversely, the smaller the moment, the more slowly the valve will close and the more water will dis-charge from the tank.
It will be understood of course that modifications can be made in the preferred embodiment described herein ~90!305 without departing from the scope and purview of the inven-tion as defined in the appencied claims.
CROSS REFERENCES TO PRIOR A~T
U.S. patent No. 2,773,268 - Flush Valve, ~lurko et al, issued December 11, 1956.
U.S. patent No. 3,839,746 - Dual Flush I'oilets, Kowalksi, issued October 8, 1974.
U.S. patent No. 3,908,203 - Toilet Flush System, Jackson, issued September 30, 1975.
U.S. patent ~o. 4,032,997 - Flush Toilet Access-ory, Phripp et al, issued July 5, 1977.
U.S. patent ~o. 4,114,204 - Water-Flow Device and Method, ~lach, issued September 19, 1978.
U.S. patent No. 4,134,165 - Flush Toilet Access-ory, Phripp et al., issued January 16, 1979.
U.S. patent No. 4,183,107 - Variable Flush Toilet Valve Mechanism, Hare et al., issued January 15, 1980.
U.S. patent No. 4,224,703 - Flush Tank Valve Clo-ser, Makhobey, issued September 30, 1980.
U.S. patent No. 4,388,736 - Tank Flushing Means, Roosa et al., issued June 21, 1983.
U.S. patent No. 4,391,003 - Water-Saving Device for Use with Toilets, Talerico et al, issued July 5, 1983.
BACKGROUND OF THE INVENTION
This invention relates to flush toilets and more particularly to an assembly which attaches to a convent-ional flush toilet and which permits adjustment in the amount of water discharged from the tank during each flush.
~90905 A well recognized fault of conventional flush toilets, particularly those of older manufacture, is that they consume too much water during each flush. Such toilets were manufactured at a time when water was abundant and when little or no thought was given to the necessity of restricting the amount of water required to flush the toilet.
Water now is now no longer abundant. In many localities measures have been adopted to restrict the amount of water consumed. Measures such as levies on the amount of water consumed and on the amount of effluent discharged into sewers are now commonplace.
Most toilets are now designed to consume much less water than toilets of older design. Toilets tend to last for many years however and there are many still in use that were built years ago. There is a need for effective ways of reducing the amount of water consumed by such toilets.
Various ways of reducing the amount of water con-sumed during a flush are known. The most common method is to place a brick in the tank of the toilet. That method is quite effective but may result in a toilet bowl that is incompletely evacuated because of insufficient water in the tank. There is no ready means by which the amount of water can be adjusted in the tank to ensure that there is suff-icient water to evacuate the bowl completely.
1~:90905 Many of the patents referred to above show devices which permit such an acljustment. U.S. patent No. 4,134,165 to Phripp et al. for example describes a device which is attached to the air cylinder or float of a flushing mechan-ism. The position of the device on the float determines the amount of water which discharyes from the tank during each flush. There is provision for adjusting that position so that the amount of discharge can be adjusted to no more than that necessary to evacuate the bowl.
A shortcoming of known water saving devices such as that described in the Phripp et al patent is that the devices cannot be readily attached to a flushing mechanism of conventional design. Modifications must be made in the structure of the flushing mechanism before such devices can be attached to them. Other known devices can only be in-stalled with a degree of skill which is higher than that possessed by most persons.
~ nother shortcoming of many known water saving devices is that they are relatively complicated of con-struction and hence cannot be manufactured cheaply.
SUMMARY OF THE INVENTION
It is an object of this invention to provide a device which permits the adjustment of water which dischar-ges from a toilet during each flush. The device is simple of construction and can be readily installed in a flush toilet of conventional design by a person who does not 0~05 possess special skills~
Another object is to provide a device whichrnay be removably attached to a wide range of sizes of conventional flushing mechanisms.
Another object is to provide a device having means by which its position within the tank of a toilet can be readily adjusted in order to adjust the amount of water discharged from the tank during each flush.
These and other objects are accomplished in an assembly for flushing a toilet and adapted to be mounted within the tank of the toilet, the assembly having a valve mechanism adapted to open and close an outlet through which water discharges from the tank and a cylindrical float attached thereto, the valve mechanism and float being oper-atively connected to each other and adapted to pivot within the tank~ The improvement of the subject invention com-prises a water saving attachment having a clip formed of resilient material and provided with an arcuate inner wall and adapted to partially encircle and to frictionally and slideably engage the outer wall of the float such the clip may be snapped into and out of engagement with the float and its position on the outer wall may be adjusted by rotating the clip about the outer wall, and a weight which is attached to the clip and the position of which in the tank can be adjusted by adjustment of the position of the clip on the outer wall.
~ ~0905 DESCRIPTI()N OF THE DRAWINGS
The invention is described in detail with refer-ence to the accompanying drawings in which:
Figure 1 is an elevation of a conventional flush-ing assembly shown in conjunction with the water saving attachment of the invention;
Figure 2 is an exploded perspective view, in en-larged scale, of the water saving attachment;
Yigure 3 is an end view of the attachment; and Figures 4 and 5 are elevations of the flushing assembly in at the time of commencement of a f lush and prior to completion of the f lush~
C.ike reference parts refer to like parts through-out the description of the drawings.
DESCRIPTION OF THE PREFERRED EMBODIMENT
With reference to Figure 1, the àssembly for flushing a toilet is indicated generally by the numeral 10 and is shown in conjunction with the bottom wall of a tank 11. A valve seat 12 is mounted in an outlet aperture 13 in the bottom wall and a supporting element 14 extends upward-ly from the valve seat. An arm 16 is pivotally connected at 17 to the upper end of element 14. An elastomeric valve member 18 is connected to the arm and is adapted to open and close an outlet pipe 20. The arm also supports a fully enclosed and sealed cylindrical air chamber or float 22 and an upwardly open cylindrical water chamber 24. A chain 26 ~.X90905 is provi~ed to permit the operator to pull upwardly on the arm 16 thus moving it counterclockwise with respect to the column 14. Counterclockwise motion raises the elastomeric valve member fro~ the outlet pipe 20 and initiates the flushing action.
The asse~bly described above is conventional and is described in detail in a number of patents including U.S. patent No. 2,773.26~ to Hurko et al mentioned above.
With reference to Figures 1, 2 and 3, the water saving attachment or improvement of the subject invention, generally 28, includes a clip 3G and a weight 32. The clip has an arcuate cross section and its inside diameter, indicated 30a, is the same as or is slightly greater than the outer diameter of float 22, indicated 22a in Figure 1.
The clip is formed of resilient material such as resilient plastic, stainless steel or the like and may be attached to the float by forcing its lower edges 34a,b against the outer wall of the float to cause the walls of the clip to separate and to snap into contact with the outer wall of the float so that it partially encircles the float as illustrated in Figure l. Since the inner wall of the clip conforms to the shape of the outer wall of the float, the inner wall of the clip makes contact with the outer wall of the float throughout substantially its entire extent.
When the clip is in the position illustrated in ~90905 Figure l, it is firmly attached by friction to the float but its position on the outer wall may be adjusted by rotating it manually about the outer wall . The clip is cut away at 36 so that arm 16 will not interfere with rotation of the clip.
The clip is provided with two pairs of jaws 38, 40 at opposite ends to permit removable attachment of weight 32. Each jaw is semi-circu]ar in shape and is formed of resiliently deformable material. End walls 42,44 are pro-vided at opposite ends of the clip.
Weight 32 is cylindrical in shape and its outer wall conforms to the shape of the inner walls of the jaws.
The weight may be attached to the jaws by pressing the weight against the opening of the jaws to cause the jaws to separate resiliently and to snap into engagement with the weight. The end walls prevent the weight from sliding out of engagement when they are in contact with the jaws.
By means of the resiliently deformable jaws the weight can be removed and replaced by a different weight of greater or lesser weight.
The operation of the water saving attachment is described with reference to Figures 4 and 5. Prior to the flushing of the tank~ the water in the tank is at the level shown in the former Figure. Upon initiation of the flush, valve 1~ is rotated to the position shown in that Figure as chain 26 is pulled upward and water discharges through ()905 outlet pipe 20.
As the level of water falls, the additional mass of weight 32 exerts a clockwise closing torque on the f loat 22 and the valve 1~ will move downwardly toward the opening of pipe 20. ~s soon as the valve is within a predetermined distance of the pipe, the differential pressure of water above and below the valve caused by the movement of the water will add more closing torque and the valve will snap suddenly closed.
~ 7ith reference to Figure 5, the valve is shown in the position immediately before it blocks the flow of water through pipe 20. The level of the water is above the level of the valve.
The position of the weight on the float can be adjusted by rotating it clockwise or counter-clockwise on the outer float wall in the direction of arrow 40. As the position is changed, the moment of the weight about pivot 17 changes with resulting change in the amount of closing torque applied to the valve by the weight. The greater the moment, the more rapidly the valve will close and the less water will discharge through the outlet pipe before the valve closes. Conversely, the smaller the moment, the more slowly the valve will close and the more water will dis-charge from the tank.
It will be understood of course that modifications can be made in the preferred embodiment described herein ~90!305 without departing from the scope and purview of the inven-tion as defined in the appencied claims.
Claims (4)
1. In an assembly for flushing a toilet and adapted to be mounted within the tank of the toilet, the assembly having a valve mechanism adapted to open and close an outlet through which water discharges from the tank and a cylindrical float attached thereto, the valve mechanism and float being operatively connected to each other and adapted to pivot within the tank, the improvement comprising a water saving attachment having a clip formed of resilient material and provided with an arcuate inner wall and adapted to partially encircle and to frictionally and slideably engage the outer wall of the float such the clip may be snapped into and out of engagement with the float and its position on the outer wall may be adjusted by rotating the clip about the outer wall, and a weight which is attached to the clip and the position of which in the tank can be adjusted by adjustment of the position of the clip on the outer wall.
2. The improvement as claimed in claim 1 wherein said clip further comprises pairs of jaws for frictionally and removably engaging the weight whereby one weight can be removed and replaced by another.
3. The improvement as claimed in claim 2 wherein the arcuate inner wall of the clip conforms to the shape of the outer wall of the float such that the inner wall substant-ially throughtout its entire extent makes contact with the outer wall of the float.
4. The improvement as claimed in claim 2 wherein the weight is cylindrical in shape and the jaws have curved inner walls for frictionally and removably engaging the weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000580508A CA1290905C (en) | 1988-10-18 | 1988-10-18 | Water saving attachment for a flush toilet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000580508A CA1290905C (en) | 1988-10-18 | 1988-10-18 | Water saving attachment for a flush toilet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1290905C true CA1290905C (en) | 1991-10-22 |
Family
ID=4138938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000580508A Expired - Lifetime CA1290905C (en) | 1988-10-18 | 1988-10-18 | Water saving attachment for a flush toilet |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1290905C (en) |
-
1988
- 1988-10-18 CA CA000580508A patent/CA1290905C/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |