CA2429531A1 - Toilet flusher with novel valves and controls - Google Patents
Toilet flusher with novel valves and controls Download PDFInfo
- Publication number
- CA2429531A1 CA2429531A1 CA002429531A CA2429531A CA2429531A1 CA 2429531 A1 CA2429531 A1 CA 2429531A1 CA 002429531 A CA002429531 A CA 002429531A CA 2429531 A CA2429531 A CA 2429531A CA 2429531 A1 CA2429531 A1 CA 2429531A1
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- Prior art keywords
- valve
- pressure
- flush
- chamber
- tank
- Prior art date
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract 63
- 230000007246 mechanism Effects 0.000 claims abstract 27
- 239000007788 liquid Substances 0.000 claims 15
- 239000012530 fluid Substances 0.000 claims 12
- 238000011144 upstream manufacturing Methods 0.000 claims 10
- 238000011010 flushing procedure Methods 0.000 claims 7
- 238000006073 displacement reaction Methods 0.000 claims 6
- 208000036366 Sensation of pressure Diseases 0.000 claims 3
- 230000007423 decrease Effects 0.000 claims 2
- 230000009977 dual effect Effects 0.000 claims 2
- 241000271897 Viperidae Species 0.000 claims 1
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 230000033001 locomotion Effects 0.000 claims 1
- 230000003287 optical effect Effects 0.000 claims 1
- 230000001960 triggered effect Effects 0.000 claims 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D3/00—Flushing devices operated by pressure of the water supply system flushing valves not connected to the water-supply main, also if air is blown in the water seal for a quick flushing
- E03D3/02—Self-closing flushing valves
- E03D3/06—Self-closing flushing valves with diaphragm valve and pressure chamber for retarding the valve-closing movement
-
- 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
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D5/00—Special constructions of flushing devices, e.g. closed flushing system
- E03D5/02—Special constructions of flushing devices, e.g. closed flushing system operated mechanically or hydraulically (or pneumatically) also details such as push buttons, levers and pull-card therefor
- E03D5/024—Operated hydraulically or pneumatically
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D5/00—Special constructions of flushing devices, e.g. closed flushing system
- E03D5/10—Special constructions of flushing devices, e.g. closed flushing system operated electrically, e.g. by a photo-cell; also combined with devices for opening or closing shutters in the bowl outlet and/or with devices for raising/or lowering seat and cover and/or for swiveling the bowl
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
- F16K31/40—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor
- F16K31/406—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor acting on a piston
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Sanitary Device For Flush Toilet (AREA)
Abstract
A tank-type flusher (300) includes an intake valve, i.e., a fill valve, (302), a diaphragm-operated flush valve (304), and a pressure control mechanism (306). The intake valve is connected to an external water source and is constructed to close water flow to a water storage tank (16) at about a predefined water level in the water tank. The diaphragm-operated flush valve is constructed to control a flush valve member between a seated state and an unseated state allowing water discharge from the water tank into a toilet bow.
There is a disphragm, separating a flush-valve chamber and a pilot chamber, arranged to seal the flush-valve chamber and thereby maintain pressure forcing the flush valve member to the seated state preventing the water discharge from the water storage tank to the toilet bowl. The pressure control mechanism is constructed and arranged, upon actuation, to reduce pressure in the pilot chamber of the diaphragm-operated flush valve to cause deformation of the diaphragm and thereby reduce pressure in the flush-valve chamber causing the water discharge.
There is a disphragm, separating a flush-valve chamber and a pilot chamber, arranged to seal the flush-valve chamber and thereby maintain pressure forcing the flush valve member to the seated state preventing the water discharge from the water storage tank to the toilet bowl. The pressure control mechanism is constructed and arranged, upon actuation, to reduce pressure in the pilot chamber of the diaphragm-operated flush valve to cause deformation of the diaphragm and thereby reduce pressure in the flush-valve chamber causing the water discharge.
Claims (61)
1. A tank-type flusher, comprising:
an intake valve connected to an external water source and constructed to close water flow to a water storage tank at about a predefined water level in said wafer tank;
a diaphragm-operated flush valve constructed to control a flush valve mem-ber between a seated state and an unseated state allowing water discharge from said water tank into a toilet bowl;
a diaphragm, separating a flush-valve chamber and a pilot chamber, ar-ranged to seal said flush-valve chamber and thereby maintain pressure forcing said flush valve member to said seated state preventing said water discharge from said water storage tank to said toilet bowl; and a pressure control mechanism constructed and arranged, upon actuation, to reduce pressure in said pilot chamber of said diaphragm-operated flush valve to cause deformation of said diaphragm and thereby reduce pressure in said flush-valve chamber causing said water discharge.
an intake valve connected to an external water source and constructed to close water flow to a water storage tank at about a predefined water level in said wafer tank;
a diaphragm-operated flush valve constructed to control a flush valve mem-ber between a seated state and an unseated state allowing water discharge from said water tank into a toilet bowl;
a diaphragm, separating a flush-valve chamber and a pilot chamber, ar-ranged to seal said flush-valve chamber and thereby maintain pressure forcing said flush valve member to said seated state preventing said water discharge from said water storage tank to said toilet bowl; and a pressure control mechanism constructed and arranged, upon actuation, to reduce pressure in said pilot chamber of said diaphragm-operated flush valve to cause deformation of said diaphragm and thereby reduce pressure in said flush-valve chamber causing said water discharge.
2. The tank-type flusher of claim 1 wherein said intake valve includes a float constructed and arranged without any fixed coupling to any valve member.
3. The tank-type flusher of claim 1 wherein said intake valve includes a float which freely floats within a float cage.
4. The tank-type flusher of claim 1 wherein said intake valve includes a float arranged to float within a float cage and to block a relief orifice at said prede-fined water level.
5. The tank-type flusher of claim 1 wherein said pressure control mecha-nism is controlled by a solenoid.
6. The tank-type flusher of claim 1 wherein said flush valve member is con-structed to move linearly within a flush valve housing.
7. The tank-type flusher of claim 1 wherein said flush-valve chamber is ar-ranged to receive water pressure from said external source and being arranged to prevent said water discharge utilizing at least a portion of said water pressure.
8. A tank-type flusher, comprising:
an intake valve constructed to close water flow from an external water source to a water storage tank when there is a predefined water level in said water tank, said intake valve including a float constructed and arranged to freely float within a float cage; and a diaphragm-operated flush valve including a flush-valve chamber, said diaphragm-operated flush valve being constructed to open upon actuation to dis-charge water into a toilet bowl from said water tank.
an intake valve constructed to close water flow from an external water source to a water storage tank when there is a predefined water level in said water tank, said intake valve including a float constructed and arranged to freely float within a float cage; and a diaphragm-operated flush valve including a flush-valve chamber, said diaphragm-operated flush valve being constructed to open upon actuation to dis-charge water into a toilet bowl from said water tank.
9. A tank-type flusher, comprising:
an intake valve connected to an external water source and constructed to close water flow to a water storage tank at about a predefined water level in said water tank; and a flush valve constructed to control position of a flush valve member mov-able between a seated state and an unseated state allowing water discharge from said water tank into a toilet bowl; said flush valve member being biased to said un-seated state by a bias member and being forced to said seated state by at least a portion of water pressure from said external source.
an intake valve connected to an external water source and constructed to close water flow to a water storage tank at about a predefined water level in said water tank; and a flush valve constructed to control position of a flush valve member mov-able between a seated state and an unseated state allowing water discharge from said water tank into a toilet bowl; said flush valve member being biased to said un-seated state by a bias member and being forced to said seated state by at least a portion of water pressure from said external source.
10. The tank-type flusher of claim 1, 8 or 9 wherein said intake valve and said flush valve are located within a single housing.
11. The tank-type flusher of claim 9 wherein said flush-valve chamber is ar-ranged to receive a water pressure from said external source and is arranged to prevent said water discharge utilizing at least a portion of said water pressure.
12. The tank-type flusher of claim 9 wherein said diaphragm-operated flush valve is controlled by a solenoid.
13. The tank-type flusher of any one of the above claims wherein said wa-ter tank is an exposed water tank.
14. The tank-type flasher of any one of the above claims wherein said wa-ter tank is a concealed water tank located behind a wall.
15. The tank-type flasher of any one of the above claims wherein said in-take valve enables a variable water level in said tank.
16. The tank-type flasher of any one of the above claims including a vac-uum breaker arranged to prevent transfer of water from said tank to a water sup-ply.
17. The tank-type flasher of any one of the above claims including a man-ual actuator constructed and arranged to actuate said flush valve,
18. The tank-type flasher of claim 17 wherein said manual actuator is a push button actuator.
19. The tank-type flasher of claim 18 wherein said push button actuator is constructed to actuate said flush valve enabling a dual water volume flush.
20. The tank-type flasher of claim 18 wherein said push button actuator is constructed to actuate hydraulically said flush valve.
21. The tank-type flasher of any one of the above claims including an automatic actuator constructed and arranged to actuate said flush valve.
22. The tank-type flasher of claim 17 wherein said automatic actuator is constructed to be triggered by a sensor.
28. The tank-type flasher of claim 22 wherein said sensor registers pres-ence of an object.
24. The tank-type flasher of claim 22 wherein said sensor registers move-ment of an object.
25. The tank-type flasher of claim 22 wherein said sensor is an optical sen-sor.
26. The tank-type flasher of claim 21 wherein said automatic actuator is constructed to actuate said flush valve enabling a dual water volume flush.
27. The tank-type flasher of claim 21 wherein said automatic actuator is lo-cated outside of said water tank and is constructed to actuate hydraulically said flush valve.
28. The tank-type flasher of claim 1, 8 or 9 including a check valve ar-ranged to reduce variation of closing pressure depending on water line pressure.
29. The tank-type flusher of claim 1, 8 or 9 including a pressure compen-sated flow regulator.
30. The tank-type flusher of claim 1, 8 or 9 including a viper seal co-operatively arranged with said flush valve to prevent water leaking into said toilet bowl.
31. The tank-type flusher of claim 1, 8 or 9 including a vent for controlling odor
32. A flusher comprising:
a tank forming a flush outlet by which liquid in the tank may leave the flank for flushing;
a flush-valve member operable between an unseated state, in which it per-mits flow from the tank through the flush outlet, and a seated state, in which it pre-vents flow from the tank therethrough;
a valve-operating mechanism including a housing that defines a control chamber disposed at a local location and forms a line-pressure inlet that admits water line pressure into the control chamber and further forms a control-chamber pressure-relief outlet, by which pressure in the control chamber can be relieved, the valve-operating mechanism operating the flush-valve member to its seated state when the line pressure prevails in the control chamber and operating the flush-valve member to its unseated state when the pressure in the control cham-ber is relieved, the valve-operating mechanism further including: a pressure-relief conduit extending from the control-chamber pressure-relief outlet to a remote loca-tion and thereby providing a pressure-relief path; and a remote valve, disposed at the remote location, interposed in the pressure-relief path, and including:
a) chamber walls, including first and second displaceable walls, forming a closed actuator chamber;
b) and incompressible fluid that fills the actuator chamber;
c) a remote-valve member coupled to the second displaceable wall for displacement therewith between a closed state, to which it is biased and in which it prevents flow through the pressure-relief conduit and thereby prevents re-lief of pressure within the control chamber, and an open state, in which it permits relief of pressure within the control chamber;
d) a push button displaceable by manual depression and so coupled to the first displaceable wall as to displace the first displaceable wall and thereby the incompressible fluid, the second displaceable wall, and the valve to the open state;
e) an actuation-chamber divider that divides the actuator cham-ber into first and second chamber segments in which the first and second dis-placeable walls are respectively located, the divider providing for asymmetric flow therethrough such that it exhibits such higher flow resistance to flow of the incom-pressible fluid therethrough from the second chamber segment to the first cham-ber segment than from the first chamber segment to the second chamber segment as to impose a time delay of at least two seconds between release of the push button and the remote-valve member's closure of the pressure-relief path.
a tank forming a flush outlet by which liquid in the tank may leave the flank for flushing;
a flush-valve member operable between an unseated state, in which it per-mits flow from the tank through the flush outlet, and a seated state, in which it pre-vents flow from the tank therethrough;
a valve-operating mechanism including a housing that defines a control chamber disposed at a local location and forms a line-pressure inlet that admits water line pressure into the control chamber and further forms a control-chamber pressure-relief outlet, by which pressure in the control chamber can be relieved, the valve-operating mechanism operating the flush-valve member to its seated state when the line pressure prevails in the control chamber and operating the flush-valve member to its unseated state when the pressure in the control cham-ber is relieved, the valve-operating mechanism further including: a pressure-relief conduit extending from the control-chamber pressure-relief outlet to a remote loca-tion and thereby providing a pressure-relief path; and a remote valve, disposed at the remote location, interposed in the pressure-relief path, and including:
a) chamber walls, including first and second displaceable walls, forming a closed actuator chamber;
b) and incompressible fluid that fills the actuator chamber;
c) a remote-valve member coupled to the second displaceable wall for displacement therewith between a closed state, to which it is biased and in which it prevents flow through the pressure-relief conduit and thereby prevents re-lief of pressure within the control chamber, and an open state, in which it permits relief of pressure within the control chamber;
d) a push button displaceable by manual depression and so coupled to the first displaceable wall as to displace the first displaceable wall and thereby the incompressible fluid, the second displaceable wall, and the valve to the open state;
e) an actuation-chamber divider that divides the actuator cham-ber into first and second chamber segments in which the first and second dis-placeable walls are respectively located, the divider providing for asymmetric flow therethrough such that it exhibits such higher flow resistance to flow of the incom-pressible fluid therethrough from the second chamber segment to the first cham-ber segment than from the first chamber segment to the second chamber segment as to impose a time delay of at least two seconds between release of the push button and the remote-valve member's closure of the pressure-relief path.
33. A flusher as defined in claim 32 wherein the actuation-chamber di-vider includes: a divider wall forming forward and reverse passages therethrough;
and a check valve positioned and oriented to permit flow from the first chamber segment through the forward passage to the second chamber segment but not from the second chamber segment through the forward passage to the first cham-ber segment; and wherein the incompressible fluid flows through the reverse pas-sage when the displaceable walls are displaced by the remote-valve member's assuming its closed state.
and a check valve positioned and oriented to permit flow from the first chamber segment through the forward passage to the second chamber segment but not from the second chamber segment through the forward passage to the first cham-ber segment; and wherein the incompressible fluid flows through the reverse pas-sage when the displaceable walls are displaced by the remote-valve member's assuming its closed state.
34. A flusher comprising:
a tank forming a flush outlet by which liquid in the tank may leave the tank for flushing;
a flush-valve member operable between an unseated state, in which it per-mits flow from the tan through the flush outlet, and a seated state, in which it pre-vents flow from the tank therethrough;
a valve-operating mechanism including a housing that defines a control chamber disposed and forms a line-pressure inlet that admits water line pressure into the control chamber and further forms a control-chamber pressure-relief out-let, by which pressure in the control chamber can be relieved, the valve-operating mechanism operating the flush-valve member to its seated state when the line pressure prevails in the control chamber and operating the flush-valve member to its unseated state when the pressure in the control chamber is relieved;
a pressurizer conduit having an upstream thereof and a downstream end t hereof that so communicates with the control chamber that pressurized water ap-plied to the pressurizer conduit at an upstream end thereof can pressurize the con-trol chamber; and a pressure controller interposed in the pressurizer conduit, the pressurizer conduit imposing a pressure drop from its upstream to its downstream side that increases and decreases with upstream pressure.
a tank forming a flush outlet by which liquid in the tank may leave the tank for flushing;
a flush-valve member operable between an unseated state, in which it per-mits flow from the tan through the flush outlet, and a seated state, in which it pre-vents flow from the tank therethrough;
a valve-operating mechanism including a housing that defines a control chamber disposed and forms a line-pressure inlet that admits water line pressure into the control chamber and further forms a control-chamber pressure-relief out-let, by which pressure in the control chamber can be relieved, the valve-operating mechanism operating the flush-valve member to its seated state when the line pressure prevails in the control chamber and operating the flush-valve member to its unseated state when the pressure in the control chamber is relieved;
a pressurizer conduit having an upstream thereof and a downstream end t hereof that so communicates with the control chamber that pressurized water ap-plied to the pressurizer conduit at an upstream end thereof can pressurize the con-trol chamber; and a pressure controller interposed in the pressurizer conduit, the pressurizer conduit imposing a pressure drop from its upstream to its downstream side that increases and decreases with upstream pressure.
35. A flusher comprising:
a tank forming a flush outlet by which liquid in the tank may leave the tank for flushing;
a flush-valve member operable between an unseated state, in which it per-mits flow from the tank through the flush outlet, and a seated state, in which it pre-vents flow from the tank therethrough;
a valve-operating mechanism including a housing that defines a control chamber disposed and forms a line-pressure inlet that admits water line pressure into the control chamber and further forms a control-chamber pressure-relief out-let, by which pressure in the control chamber can be relieved, the valve-operating mechanism operating the flush-valve member to its seated state when the line pressure prevails in the control chamber and operating the flush-valve member to its unseated state when the pressure in the control chamber is relieved;
a pressurizer conduit having an upstream thereof and a downstream end thereof that so communicates with the control chamber that pressurized water ap-plied to the pressurizer conduit at an upstream end thereof can pressurize the control chamber; and a check valve interposed in the pressurizes conduit and oriented to permit flow toward the pressurizes conduit's upstreamend but not toward its upstream end.
a tank forming a flush outlet by which liquid in the tank may leave the tank for flushing;
a flush-valve member operable between an unseated state, in which it per-mits flow from the tank through the flush outlet, and a seated state, in which it pre-vents flow from the tank therethrough;
a valve-operating mechanism including a housing that defines a control chamber disposed and forms a line-pressure inlet that admits water line pressure into the control chamber and further forms a control-chamber pressure-relief out-let, by which pressure in the control chamber can be relieved, the valve-operating mechanism operating the flush-valve member to its seated state when the line pressure prevails in the control chamber and operating the flush-valve member to its unseated state when the pressure in the control chamber is relieved;
a pressurizer conduit having an upstream thereof and a downstream end thereof that so communicates with the control chamber that pressurized water ap-plied to the pressurizer conduit at an upstream end thereof can pressurize the control chamber; and a check valve interposed in the pressurizes conduit and oriented to permit flow toward the pressurizes conduit's upstreamend but not toward its upstream end.
36. A flushes comprising:
a tank forming a flush outlet by which liquid in the tank may leave the tank for flushing;
a flush-valve member operable between an unseated state, in which it per-mits flow from the tank through the flush outlet, and a seated state, in which it pre-vents flow from the tank therethrough;
a valve-operating mechanism including a housing that defines a control chamber disposed and forms a line-pressure inlet that admits water line pressure into the control chamber and further forms a control-chamber pressure-relief out-let, by which pressure in the control chamber can be relieved, the valve-operating mechanism operating the flush-valve member to its seated state when the line pressure prevails in the control chamber and operating the flush-valve member to its unseated state when the pressure in the control chamber is relieved;
a manifold having an inlet and pressurizes and fill outlets;
a pressurizes conduit having an upstream thereof in fluid communication with the pressurizes outlet and a downstream end thereof that so communicates with the control chamber that pressurized water applied to the pressurizes conduit at an upstream end thereof can pressurize the control chamber;
a fill conduit having an upstream thereof in fluid communication with the fill outlet and a downstream end t hereof from which the tank can be filled; and a flow diverter so mounted on the flush-valve member as to extend into the downstream end of the pressurizes conduit as to restrict the flow area therethrough when the flush valve is in its unseated state but leave a greater flow area when the flush valve is in its seated state.
a tank forming a flush outlet by which liquid in the tank may leave the tank for flushing;
a flush-valve member operable between an unseated state, in which it per-mits flow from the tank through the flush outlet, and a seated state, in which it pre-vents flow from the tank therethrough;
a valve-operating mechanism including a housing that defines a control chamber disposed and forms a line-pressure inlet that admits water line pressure into the control chamber and further forms a control-chamber pressure-relief out-let, by which pressure in the control chamber can be relieved, the valve-operating mechanism operating the flush-valve member to its seated state when the line pressure prevails in the control chamber and operating the flush-valve member to its unseated state when the pressure in the control chamber is relieved;
a manifold having an inlet and pressurizes and fill outlets;
a pressurizes conduit having an upstream thereof in fluid communication with the pressurizes outlet and a downstream end thereof that so communicates with the control chamber that pressurized water applied to the pressurizes conduit at an upstream end thereof can pressurize the control chamber;
a fill conduit having an upstream thereof in fluid communication with the fill outlet and a downstream end t hereof from which the tank can be filled; and a flow diverter so mounted on the flush-valve member as to extend into the downstream end of the pressurizes conduit as to restrict the flow area therethrough when the flush valve is in its unseated state but leave a greater flow area when the flush valve is in its seated state.
37. A pressure-responsive valve system comprising:
a delayed-closure valve forming a valve outlet and a valve inlet through which fluid can be introduced into the valve at an inlet pressure, the delayed-closure valve being operable from a closed state, in which the delayed-closure valve prevents flow therethrough from the valve inlet to the valve outlet, through a range of open states, in which it permits such flow, the delayed-closure valve be-ing so biased that, after release from a given open state, it returns to the closed state after a closure delay that varies with how far the given state is into the range of open states:
a valve operator biased to a retracted position, in which it permits the de-layed-closure valve to remain in its closed position, and manually operable through a range of extended positions, in each of which it holds the valve in corresponding open states within the range thereof;
an operator stop forming a stop pressure chamber and being resiliently ex-pandable by pressurization of the stop pressure chamber, the operator stop being positioned to reduce the range of the valve operator's extended positions as the operator stop expands; and a pressurizer conduit so extending from the valve inlet to the stop pressure chamber that the stop pressure chamber receives the inlet pressure, whereby the closure delay decreases with increases in inlet pressure.
a delayed-closure valve forming a valve outlet and a valve inlet through which fluid can be introduced into the valve at an inlet pressure, the delayed-closure valve being operable from a closed state, in which the delayed-closure valve prevents flow therethrough from the valve inlet to the valve outlet, through a range of open states, in which it permits such flow, the delayed-closure valve be-ing so biased that, after release from a given open state, it returns to the closed state after a closure delay that varies with how far the given state is into the range of open states:
a valve operator biased to a retracted position, in which it permits the de-layed-closure valve to remain in its closed position, and manually operable through a range of extended positions, in each of which it holds the valve in corresponding open states within the range thereof;
an operator stop forming a stop pressure chamber and being resiliently ex-pandable by pressurization of the stop pressure chamber, the operator stop being positioned to reduce the range of the valve operator's extended positions as the operator stop expands; and a pressurizer conduit so extending from the valve inlet to the stop pressure chamber that the stop pressure chamber receives the inlet pressure, whereby the closure delay decreases with increases in inlet pressure.
38. A pressure-responsive valve system as defined by claim 37 further including a check valve so interposed in the pressurizer conduit as to permit fluid flow from the valve inlet toward the stop pressure chamber but retard flow from the stop pressure chamber toward the valve inlet.
39. A pressure-responsive valve system as defined by claim 38 wherein the valve system forms a bleed orifice that permits flow from the stop pressure chamber toward the valve inlet with a flow resistance greater than that with which the check valve permits flow from the valve inlet toward the stop pressure cham-ber.
40. A pressure-responsive valve system as defined by claim 39 wherein:
the check valve includes a check-valve member resiliently biased toward a valve seat, from which flow from the valve inlet toward the stop pressure chamber tends to unseat it; and the check-valve member forms the bleed passage therethrough.
the check valve includes a check-valve member resiliently biased toward a valve seat, from which flow from the valve inlet toward the stop pressure chamber tends to unseat it; and the check-valve member forms the bleed passage therethrough.
41. A pressure-responsive valve system as defined by claim 37 wherein the operator stop includes a stop base and a stop member, positioned to stop the valve operator, that cooperates with the stop base to define the stop chamber and is resiliently displaceable with respect thereto to provide the resilient expansion of the operator stop.
42. A pressure-responsive valve system as defined by claim 41 wherein the operator stop further includes a stop spring that biases the stop member against displacement that expands the operator stop.
43. A pressure-responsive valve system as defined by claim 42 wherein the spring is a tension spring acting between the stop member and the stop base.
44. A pressure-responsive valve system as defined by claim 43 further including a check valve so interposed in the pressurizer conduit as to permit fluid flow from the valve inlet toward the stop pressure chamber but retard flow from the stop pressure chamber toward the valve inlet.
45. A pressure-responsive valve system as defined by claim 44 wherein the valve system forms a bleed orifice that permits flow from the stop pressure chamber toward the valve inlet with a flow resistance greater than that with which the check valve permits flow from the valve inlet toward the stop pressure cham-ber.
46. A pressure-responsive valve system as defined by claim 37 wherein the delayed-closure valve includes:
a valve seat surrounding the valve inlet;
a valve operator;
chamber walls, including first and second displaceable walls, forming a closed actuator chamber, the first displaceable wall being coupled to the valve op-erator for displacement thereby;
an incompressible fluid that fills the actuator chamber, whereby displace-ment of the first displaceable wall by the valve operator results in displacement of the second displaceable wall;
a valve member coupled to the second displaceable wall for displacement therewith between a closed state, to which it is biased and in which it so seats in the valve seat as to prevent flow from the valve inlet to the valve outlet, and an open state, in which it permits such flow; and an actuation-chamber divider that divides the actuator chamber into first and second chamber segments in which the first and second displaceable walls are respectively located, the divider providing such higher flow resistance to flow of the incompressible fluid therethrough from the second chamber segment to the first chamber segment than from the first chamber segment to the second cham-ber segment as, when the valve operator has been held in a position in which the operator stop stops it, to impose a time delay of at least two seconds between re-lease of the valve operator and closure of the valve.
a valve seat surrounding the valve inlet;
a valve operator;
chamber walls, including first and second displaceable walls, forming a closed actuator chamber, the first displaceable wall being coupled to the valve op-erator for displacement thereby;
an incompressible fluid that fills the actuator chamber, whereby displace-ment of the first displaceable wall by the valve operator results in displacement of the second displaceable wall;
a valve member coupled to the second displaceable wall for displacement therewith between a closed state, to which it is biased and in which it so seats in the valve seat as to prevent flow from the valve inlet to the valve outlet, and an open state, in which it permits such flow; and an actuation-chamber divider that divides the actuator chamber into first and second chamber segments in which the first and second displaceable walls are respectively located, the divider providing such higher flow resistance to flow of the incompressible fluid therethrough from the second chamber segment to the first chamber segment than from the first chamber segment to the second cham-ber segment as, when the valve operator has been held in a position in which the operator stop stops it, to impose a time delay of at least two seconds between re-lease of the valve operator and closure of the valve.
47. A pressure-responsive valve system as defined by claim 46 wherein the actuation-chamber divider includes a check valve positioned and oriented to permit flow from the first chamber segment to the second chamber segment but retard flow from the second chamber segment to the first chamber segment.
48. A pressure-responsive valve system as defined by claim 47 wherein the actuation-chamber divider includes a divider wall forming forward and reverse passages therethrough; and wherein the check valve is positioned and oriented to permit flow from the first chamber segment to the second chamber segment through the forward and reverse passages both; and arranged to permit flow from the second chamber segment to the first chamber segment through the reverse passage but not through the forward passage.
49. A pressure-responsive valve system as defined by claim 46 further including a check valve so interposed in the pressurizer conduit as to permit fluid flow from the valve inlet toward the stop pressure chamber but retard flow from the stop pressure chamber toward the valve inlet.
50. A pressure-responsive valve system as defined by claim 48 wherein the valve system forms a bleed orifice that permits flow from the stop pressure chamber toward the valve inlet with a flow resistance greater than that with which the check valve permits flow from the valve inlet toward the stop pressure cham-ber.
51. A flusher comprising:
tank forming a flush outlet by which liquid in the tank may leave the tank for flushing;
flush-valve member biased to an unseated state, in which it permits flow from the tank through the flush outlet, and operable between its unseated state and a seated state, in which it prevents flow from the tank therethrough;
flush-valve housing that forms a flush-valve chamber in which at least a portion of the flush-valve member is movably disposed, the flush-valve housing further forming a flush-valve chamber pressure-relief outlet and a line-pressure inlet that so admits water line pressure into the flush-valve chamber as to keep the valve in its seated state when water line pressure above a minimum hold pressure prevails in the flush-valve chamber; and pressure-relief mechanism operable between a closed state, in which it pre-vents relief of flush-valve-chamber pressure through the flush-valve chamber pressure-relief outlet, and an open state, in which it relieves flush-valve-chamber pressure through the flush-valve chamber pressure-relief outlet.
tank forming a flush outlet by which liquid in the tank may leave the tank for flushing;
flush-valve member biased to an unseated state, in which it permits flow from the tank through the flush outlet, and operable between its unseated state and a seated state, in which it prevents flow from the tank therethrough;
flush-valve housing that forms a flush-valve chamber in which at least a portion of the flush-valve member is movably disposed, the flush-valve housing further forming a flush-valve chamber pressure-relief outlet and a line-pressure inlet that so admits water line pressure into the flush-valve chamber as to keep the valve in its seated state when water line pressure above a minimum hold pressure prevails in the flush-valve chamber; and pressure-relief mechanism operable between a closed state, in which it pre-vents relief of flush-valve-chamber pressure through the flush-valve chamber pressure-relief outlet, and an open state, in which it relieves flush-valve-chamber pressure through the flush-valve chamber pressure-relief outlet.
52. A flusher as defined in claim 51 wherein the pressure-relief mecha-nism includes a pressure-relief conduit extending between a remote location and a local location, at which the flush-valve chamber is disposed; wherein the pressure-relief mechanism so operates as to permit relief of flush-valve chamber pressure through the flush-valve chamber pressure-relief outlet when flow through the pres-sure-relief conduit is permitted and to prevent relief of flush-valve chamber pres-sure through the flush-valve chamber pressure-relief outlet when flow through the pressure-relief conduit is prevented; and wherein the pressure-relief mechanism further includes a remote valve disposed at a remote location, interposed in the pressure-relief conduit, and operable between a closed state, in which it prevents flow through pressure-relief conduit, and an open state, in which it permits flow through the pressure-relief conduit.
53. A flusher as defined in claim 52 wherein the flush mechanism further includes a liquid-level controller that fills the tank to a target liquid level; wherein the flush-valve chamber is disposed in the portion of the tank interior that is below the target liquid level; and wherein the remote valve is disposed outside the por-tion of the tank interior that is below the target liquid level.
54. A flusher as defined in claim 51 wherein the pressure-relief mecha-nism further includes an object sensor, which generates an object-sensor output;
and wherein the pressure-relief mechanism operates between its open and closed states in accordance with the object-sensor output.
and wherein the pressure-relief mechanism operates between its open and closed states in accordance with the object-sensor output.
55. A flusher as defined in claim 4 wherein the object sensor includes:
a fiber-optic cable that extends between a local location and a remote loca-tion;
a sensor lens so disposed at the remote location as to focus light from a target region into the fiber-optic cable; and a sensor circuit, disposed at the local location, that generates an object sensor output in accordance with light received from the fiber-optic cable.
a fiber-optic cable that extends between a local location and a remote loca-tion;
a sensor lens so disposed at the remote location as to focus light from a target region into the fiber-optic cable; and a sensor circuit, disposed at the local location, that generates an object sensor output in accordance with light received from the fiber-optic cable.
56. A flusher as defined in any one of claims 51 though 55 wherein the flush mechanism further includes a liquid-level controller that fills the tank to a tar-get liquid level; wherein the remote location is outside the portion of the tank inte-rior that is below the target liquid level; the local location is inside the portion of the tank interior that is below the target liquid level.
57. A flusher as defined in any one of claims 51 though 55 wherein the pressure-relief mechanism includes a latching solenoid and assumes its closed state when the latching solenoid is in one of its stable states and assumes its open state when the latching solenoid is in the other of its stable states.
58. A flusher as defined in claim 57 wherein the pressure-relief mecha-nism is battery-powered.
59. A flusher as defined in any one of claims 51 though 55 wherein the pressure-relief mechanism is battery-powered.
60. A flusher comprising:
a pressure vessel forming a flush outlet by which liquid in the vessel may leave the pressure vessel for flushing;
a flush-valve member biased to an unseated state, in which it permits flow from the pressure vessel through the flush outlet, and operable between its un-seated state and a seated state, in which it prevents flow from the pressure vessel therethrough;
a flush-valve housing that forms a flush-valve chamber in which at least a portion of the flush-valve member is movably disposed, the flush-valve enclosure further forming a line-pressure inlet that so admits water line pressure into the flush-valve chamber as to keep the valve in its seated state when water line pres-sure above a minimum hold pressure prevails in the flush-valve chamber;
a pressure-relief passage extending from the flush-valve-chamber interior through the valve member to the flush outlet; and a pressure-relief mechanism operable between a closed state, in which it prevents relief of flush-valve-chamber pressure through the pressure-relief pas-sage, and an open state, in which it relieves flush-valve-chamber pressure through the pressure-relief passage.
a pressure vessel forming a flush outlet by which liquid in the vessel may leave the pressure vessel for flushing;
a flush-valve member biased to an unseated state, in which it permits flow from the pressure vessel through the flush outlet, and operable between its un-seated state and a seated state, in which it prevents flow from the pressure vessel therethrough;
a flush-valve housing that forms a flush-valve chamber in which at least a portion of the flush-valve member is movably disposed, the flush-valve enclosure further forming a line-pressure inlet that so admits water line pressure into the flush-valve chamber as to keep the valve in its seated state when water line pres-sure above a minimum hold pressure prevails in the flush-valve chamber;
a pressure-relief passage extending from the flush-valve-chamber interior through the valve member to the flush outlet; and a pressure-relief mechanism operable between a closed state, in which it prevents relief of flush-valve-chamber pressure through the pressure-relief pas-sage, and an open state, in which it relieves flush-valve-chamber pressure through the pressure-relief passage.
61. A flusher comprising:
a tank forming a flush outlet by which liquid in the tank may leave the tank for flushing;
a flush-valve member operable between an unseated state, in which it per-mits flow from the tank through the flush outlet, and a seated state, in which it pre-vents flow from the tank therethrough; and a valve-operating mechanism including a housing that defines a control chamber disposed at a local location and forms a line-pressure inlet that admits water line pressure into the control chamber and further forms a control-chamber pressure-relief outlet, by which pressure in the control chamber can be relieved, the valve-operating mechanism operating the flush-valve member to one of said seated and unseated states thereof when the line pressure prevails in the control chamber and operating the flush-valve member to the other of said seated and unseated states thereof when the pressure in the control chamber is relieved.
a tank forming a flush outlet by which liquid in the tank may leave the tank for flushing;
a flush-valve member operable between an unseated state, in which it per-mits flow from the tank through the flush outlet, and a seated state, in which it pre-vents flow from the tank therethrough; and a valve-operating mechanism including a housing that defines a control chamber disposed at a local location and forms a line-pressure inlet that admits water line pressure into the control chamber and further forms a control-chamber pressure-relief outlet, by which pressure in the control chamber can be relieved, the valve-operating mechanism operating the flush-valve member to one of said seated and unseated states thereof when the line pressure prevails in the control chamber and operating the flush-valve member to the other of said seated and unseated states thereof when the pressure in the control chamber is relieved.
Applications Claiming Priority (11)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/716,870 | 2000-11-20 | ||
| US09/716,870 US6321395B1 (en) | 2000-11-20 | 2000-11-20 | Timed fluid-linked flush controller |
| US09/761,533 US6370707B1 (en) | 2001-01-16 | 2001-01-16 | Supply-line-sealed flush controller |
| US09/761,408 US6453479B1 (en) | 2001-01-16 | 2001-01-16 | Flusher having consistent flush-valve-closure pressure |
| US09/761,408 | 2001-01-16 | ||
| US09/761,533 | 2001-01-16 | ||
| PCT/US2001/011384 WO2001077553A2 (en) | 2000-04-07 | 2001-04-06 | Flush valve |
| USPCT/US01/11384 | 2001-04-06 | ||
| US09/957,761 | 2001-09-21 | ||
| US09/957,761 US6425145B1 (en) | 2001-09-21 | 2001-09-21 | Push button for metered flow |
| PCT/US2001/043273 WO2002042670A2 (en) | 2000-11-20 | 2001-11-20 | Toilet flusher valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2429531A1 true CA2429531A1 (en) | 2002-05-30 |
| CA2429531C CA2429531C (en) | 2010-01-19 |
Family
ID=31499563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002429531A Expired - Fee Related CA2429531C (en) | 2000-11-20 | 2001-11-20 | Toilet flusher with novel valves and controls |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1461554A2 (en) |
| AU (1) | AU2002225646A1 (en) |
| CA (1) | CA2429531C (en) |
| IL (2) | IL156012A0 (en) |
| WO (1) | WO2002042670A2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EG25288A (en) * | 2009-10-19 | 2011-12-07 | Ai Hamed Ail Hessen Mohammed Abd | Automatic siphon. |
| GB2547011A (en) * | 2016-02-04 | 2017-08-09 | Dudley Thomas Ltd | Cistern flushing apparatus and control circuit therefor |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB447056A (en) * | 1934-11-06 | 1936-05-06 | Hastings John Holford | Improvements in or relating to flushing-cisterns |
| US3628195A (en) * | 1969-03-03 | 1971-12-21 | E Chris Skousgaard | Air balance for water closet |
| CH587972A5 (en) * | 1975-06-02 | 1977-05-31 | Couton Lucien | |
| IS3932A (en) * | 1991-10-16 | 1993-04-17 | Dallah Water Saving | Valve or valve device to control water level or volume and water box for toilet |
| WO2001011384A1 (en) | 1999-08-06 | 2001-02-15 | Visteon Global Technologies, Inc. | Radar field-of-view enhancement method and apparatus for matching field-of-view to desired detection zone |
-
2001
- 2001-11-20 WO PCT/US2001/043273 patent/WO2002042670A2/en not_active Application Discontinuation
- 2001-11-20 EP EP01995135A patent/EP1461554A2/en not_active Withdrawn
- 2001-11-20 IL IL15601201A patent/IL156012A0/en unknown
- 2001-11-20 AU AU2002225646A patent/AU2002225646A1/en not_active Abandoned
- 2001-11-20 CA CA002429531A patent/CA2429531C/en not_active Expired - Fee Related
-
2003
- 2003-05-20 IL IL156012A patent/IL156012A/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| CA2429531C (en) | 2010-01-19 |
| WO2002042670A2 (en) | 2002-05-30 |
| AU2002225646A1 (en) | 2002-06-03 |
| IL156012A0 (en) | 2003-12-23 |
| WO2002042670A3 (en) | 2004-05-27 |
| IL156012A (en) | 2010-06-16 |
| EP1461554A2 (en) | 2004-09-29 |
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| Date | Code | Title | Description |
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| EEER | Examination request | ||
| MKLA | Lapsed | ||
| MKLA | Lapsed |
Effective date: 20121120 |