US3732884A - Arrangement in water-closets - Google Patents

Arrangement in water-closets Download PDF

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Publication number
US3732884A
US3732884A US00050036A US3732884DA US3732884A US 3732884 A US3732884 A US 3732884A US 00050036 A US00050036 A US 00050036A US 3732884D A US3732884D A US 3732884DA US 3732884 A US3732884 A US 3732884A
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United States
Prior art keywords
valve
air suction
refilling
outlet tube
suction means
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
Application number
US00050036A
Inventor
I Strom
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Wartsila Oy AB
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Wartsila Oy AB
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Publication of US3732884A publication Critical patent/US3732884A/en
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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
    • F16K31/18—Actuating devices; Operating means; Releasing devices actuated by fluid actuated by a float
    • F16K31/34—Actuating devices; Operating means; Releasing devices actuated by fluid actuated by a float acting on pilot valve controlling the cut-off apparatus
    • 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
    • F16K15/00—Check valves
    • F16K15/14—Check valves with flexible valve members
    • F16K15/144—Check valves with flexible valve members the closure elements being fixed along all or a part of their periphery
    • 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
    • F16K15/00—Check valves
    • F16K15/14—Check valves with flexible valve members
    • F16K15/144—Check valves with flexible valve members the closure elements being fixed along all or a part of their periphery
    • F16K15/145—Check valves with flexible valve members the closure elements being fixed along all or a part of their periphery the closure elements being shaped as a solids of revolution, e.g. cylindrical or conical
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/3149—Back flow prevention by vacuum breaking [e.g., anti-siphon devices]
    • Y10T137/3185—Air vent in liquid flow line
    • Y10T137/3294—Valved
    • Y10T137/3331—With co-acting valve in liquid flow path
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7879—Resilient material valve
    • Y10T137/7888—With valve member flexing about securement
    • Y10T137/7889—Sleeve

Definitions

  • ABSTRACT A refilling device for the flush water container of a water-closet.
  • the device comprises an inlet tube, a refilling valve and an outlet tube.
  • a throttling member which also functions as a non-return valve preventing back flow in the outlet tube.
  • This arrangement is especially intended to be used in combination with a so called back suction guard, that is a means usually comprising flap covered air suction openings on the outlet side of the refilling valve.
  • the invention enables the use of relatively stiff flaps or other back flow preventing means at said air openings so that noise producing air suction through the openings can be completely avoided during normal operation of the refilling device.
  • the invention relates to a refilling device for the flush water container of a water-closet, which device comprises an inlet tube,.a refilling valve and an outlet tube.
  • a refilling device for the flush water container of a water-closet should usually comprises a so called backsuction guard which functions in such a way that if suction occurs in the water piping, the water in the flush water container of the water-closet cannot be sucked back into the water piping.
  • Known back-suction guards are provided with an air opening through which air will be sucked through the refilling valve into the water piping, if there occurs suction.
  • the said air opening can be covered by a flap as shown in the Finnish Pat. No. 35,001.
  • An object of the invention is to provide a refilling device in which said drawbacks do not occur.
  • the invention is characterized in that in the outlet tube there is a throttling member simultaneously operating as a nonreturn valve preventing back flow in said outlet tube.
  • a throttling member simultaneously operating as a nonreturn valve preventing back flow in said outlet tube.
  • said member is made of elastic material which enables the use of very simple constructions. As the said member forms a throttling member, the pressure in said outlet tube before said member is so increased that air will not be sucked into the outlet tube through the air openings of the back-suction guard.
  • the flaps of the back-suction guard can be made stiffer, so that air flow through the openings of the back-suction guard can be completely avoided during normal function of the refilling device.
  • the outlet tube is arranged around the inlet tube and the said throttling member is a collar-like member, located in the space between the inlet and the outlet tubes, said member being preferably attached to the outlet tube, and surrounding the outside of the inlet tube with a thin downwards directed sleeve.
  • the member is preferably placed approximately in the middle of the outlet tube, or at a higher level, because the amount of water above the member will then be small.
  • the member can advantageously be made of rubber.
  • FIG. 1 schematically shows an axial section through a refilling device according to the invention.
  • 1 indicates an inlet tube
  • 2 the valve housing of a refilling valve
  • 3 an outlet tube
  • a rubber diaphragm 4 which forms the valve body and is provided with a small central opening 5 through which the pressure in the inlet tube propagates to a chamber 6 above the diaphragm 4.
  • the pressure in the chamber 6 is in a known way regulated by means of a float operated pilot valve 7.
  • the valve housing 2 is provided with a back-suction guard according to Finnish Pat. No. 35,001 and comprising an air opening 9 provided with a flap 8.
  • the flap 8 is in this case formed as a cylindrical annulus.
  • a flexible member 10 with a downwards directed thin sleeve surrounding the outer surface of the inlet tube 1 is attached to the outlet tube 3.
  • This member is made of rubber and it functions in a downwards direction as a throttling member and in an upwards direction as a non-return valve.
  • a refilling device for the flush water container of a water-closet said device including a flow duct with a valve, said valve dividing said flow duct into an inlet part and an outlet part, said outlet part comprising, in combination, an air suction means and a non-return valve means, said air suction means being connected to said outlet part between said valve and said non-return valve means, said flow duct defining a free air flow passage between said air suction means and said valve and between said suction means and said non-return valve means.
  • said air suction means includes a check member preventing water from escaping from said outlet part through said air suction means.
  • a device in which said nonreturn valve means is arranged to provide a throttling of the flow in said outlet part, thereby causing a pressure loading the check member of said air suction means.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sanitary Device For Flush Toilet (AREA)
  • Self-Closing Valves And Venting Or Aerating Valves (AREA)
  • Check Valves (AREA)

Abstract

A refilling device for the flush water container of a watercloset. The device comprises an inlet tube, a refilling valve and an outlet tube. In the outlet tube there is a throttling member which also functions as a non-return valve preventing back flow in the outlet tube. This arrangement is especially intended to be used in combination with a so called back suction guard, that is a means usually comprising flap covered air suction openings on the outlet side of the refilling valve. The invention enables the use of relatively stiff flaps or other back flow preventing means at said air openings so that noise producing air suction through the openings can be completely avoided during normal operation of the refilling device.

Description

' United States Patent [191 Strom [111 3,732,884 51 May 15,1973
Ingmar Strom, Helsinki, Finland [51] Int. Cl ..Fl6k 45/00 [58] IjieldofSearch ..l37/2l5218,525,6l4.2
[56] References Cited UNITED STATES PATENTS 6/1943 Groeniger ..137/218 3/1964 Langdon ..137/218 5/1945 Funk 137/525 3/1946 Owens ..l37/218 10/1953 Sarsody ..l37/614.2
Primary ExaminerHenry T. Klinksiek V Attorney-Waters, Roditi, Schwartz & Nissen [57] ABSTRACT A refilling device for the flush water container of a water-closet. The device comprises an inlet tube, a refilling valve and an outlet tube. In the outlet tube there is a throttling member which also functions as a non-return valve preventing back flow in the outlet tube. This arrangement is especially intended to be used in combination with a so called back suction guard, that is a means usually comprising flap covered air suction openings on the outlet side of the refilling valve. The invention enables the use of relatively stiff flaps or other back flow preventing means at said air openings so that noise producing air suction through the openings can be completely avoided during normal operation of the refilling device.
'4 Claims, 1 Drawing Figure nnnnnnnnnu ARRANGEMENT IN WATER-CLOSETS The invention relates to a refilling device for the flush water container of a water-closet, which device comprises an inlet tube,.a refilling valve and an outlet tube.
A refilling device for the flush water container of a water-closet should usually comprises a so called backsuction guard which functions in such a way that if suction occurs in the water piping, the water in the flush water container of the water-closet cannot be sucked back into the water piping. Known back-suction guards are provided with an air opening through which air will be sucked through the refilling valve into the water piping, if there occurs suction. The said air opening can be covered by a flap as shown in the Finnish Pat. No. 35,001. When the refilling device operates in normal manner, air is easily sucked through the openings of the back-suction guard into the outlet tube of the refilling means, whereby the noise level of the device rises considerably. This air suction can be relatively effectively prevented by said flap arrangement, but if the flow velocity in the outlet tube is high there might still be an air suction into the outlet tube through the openings of the back-suction guard.
An object of the invention is to provide a refilling device in which said drawbacks do not occur. The invention is characterized in that in the outlet tube there is a throttling member simultaneously operating as a nonreturn valve preventing back flow in said outlet tube. Preferably said member is made of elastic material which enables the use of very simple constructions. As the said member forms a throttling member, the pressure in said outlet tube before said member is so increased that air will not be sucked into the outlet tube through the air openings of the back-suction guard. As the member also functions as a non-return valve preventing back flow in the outlet tube, the flaps of the back-suction guard can be made stiffer, so that air flow through the openings of the back-suction guard can be completely avoided during normal function of the refilling device.
In a preferred embodiment, the outlet tube is arranged around the inlet tube and the said throttling member is a collar-like member, located in the space between the inlet and the outlet tubes, said member being preferably attached to the outlet tube, and surrounding the outside of the inlet tube with a thin downwards directed sleeve. The member is preferably placed approximately in the middle of the outlet tube, or at a higher level, because the amount of water above the member will then be small. The member can advantageously be made of rubber.
In the following, the invention will be more fully described with reference to the sole FIGURE of the attached drawing which schematically shows an axial section through a refilling device according to the invention.
In the drawing, 1 indicates an inlet tube, 2 the valve housing of a refilling valve and 3 an outlet tube. In the valve housing there is a rubber diaphragm 4 which forms the valve body and is provided with a small central opening 5 through which the pressure in the inlet tube propagates to a chamber 6 above the diaphragm 4. The pressure in the chamber 6 is in a known way regulated by means of a float operated pilot valve 7.
The valve housing 2 is provided with a back-suction guard according to Finnish Pat. No. 35,001 and comprising an air opening 9 provided with a flap 8. The flap 8 is in this case formed as a cylindrical annulus.
Approximately in the middle of the outlet tube 3 a flexible member 10 with a downwards directed thin sleeve surrounding the outer surface of the inlet tube 1 is attached to the outlet tube 3. This member is made of rubber and it functions in a downwards direction as a throttling member and in an upwards direction as a non-return valve.
I claim:
1. A refilling device for the flush water container of a water-closet, said device including a flow duct with a valve, said valve dividing said flow duct into an inlet part and an outlet part, said outlet part comprising, in combination, an air suction means and a non-return valve means, said air suction means being connected to said outlet part between said valve and said non-return valve means, said flow duct defining a free air flow passage between said air suction means and said valve and between said suction means and said non-return valve means.
2. A device according to claim 1, in which said air suction means includes a check member preventing water from escaping from said outlet part through said air suction means.
3. A device according to claim 2, in which said nonreturn valve means is arranged to provide a throttling of the flow in said outlet part, thereby causing a pressure loading the check member of said air suction means.
is float controlled.

Claims (4)

1. A refilling device for the flush water container of a watercloset, said device including a flow duct with a valve, said valve dividing said flow duct into an inlet part and an outlet part, said outlet part comprising, in combination, an air suction means and a non-return valve means, said air suction means being connected to said outlet part between said valve and said nonreturn valve means, said flow duct defining a free air flow passage between said air suction means and said valve and between said suction means and said non-return valve means.
2. A device according to claim 1, in which said air suction means includes a check member preventing water from escaping from said outlet part through said air suction means.
3. A device according to claim 2, in which said non-return valve means is arranged to provide a throttling of the flow in said outlet part, thereby causing a pressure loading the check member of said air suction means.
4. A device according to claim 2 wherein said valve is float controlled.
US00050036A 1969-06-26 1970-06-26 Arrangement in water-closets Expired - Lifetime US3732884A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI691891A FI47592C (en) 1969-06-26 1969-06-26 Water closet flush tank filler.

Publications (1)

Publication Number Publication Date
US3732884A true US3732884A (en) 1973-05-15

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ID=8506369

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Application Number Title Priority Date Filing Date
US00050036A Expired - Lifetime US3732884A (en) 1969-06-26 1970-06-26 Arrangement in water-closets

Country Status (8)

Country Link
US (1) US3732884A (en)
JP (1) JPS4939064B1 (en)
BE (1) BE752521A (en)
DE (1) DE2031176A1 (en)
FI (1) FI47592C (en)
FR (1) FR2052833A5 (en)
NL (1) NL7009445A (en)
SE (1) SE353116B (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4088191A (en) * 1972-07-24 1978-05-09 Chevron Research Company High pressure jet well cleaning
US4553560A (en) * 1983-06-14 1985-11-19 Wastemate Corporation Anti-siphon control valve
WO2002029170A1 (en) * 2000-10-06 2002-04-11 Fominaya Agullo, Pablo Faucet for filling tanks
US6826998B2 (en) 2002-07-02 2004-12-07 Lillbacka Jetair Oy Electro Hydraulic servo valve
US20130160875A1 (en) * 2011-12-22 2013-06-27 Gregory Schriner Plug valve with bowing rigid arms
CN105297854A (en) * 2015-11-17 2016-02-03 厦门瑞尔特卫浴科技股份有限公司 Water inlet valve and water outlet noise reducing structure thereof
USD787646S1 (en) 2014-09-12 2017-05-23 Zurn Industries, Llc Flush valve diaphragm
US9896829B2 (en) 2014-09-12 2018-02-20 Zurn Industries, Llc Flush valve diaphragm

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1505097A (en) * 1975-11-15 1978-03-22 Fordham Pressings Ltd Valves

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2323631A (en) * 1939-01-25 1943-07-06 Stadler Robert Regeneration of deactivated cuprous chloride solutions
US2374989A (en) * 1943-04-21 1945-05-01 Funk Peter George Valve
US2395906A (en) * 1942-12-12 1946-03-05 Jesse C Owens Antisiphonic plumbing unit
US2655178A (en) * 1948-12-29 1953-10-13 Blaw Knox Co Valved water inlet nozzle for concrete mixers or the like
US3125114A (en) * 1964-03-17 Dual valved vacuum breaker

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3125114A (en) * 1964-03-17 Dual valved vacuum breaker
US2323631A (en) * 1939-01-25 1943-07-06 Stadler Robert Regeneration of deactivated cuprous chloride solutions
US2395906A (en) * 1942-12-12 1946-03-05 Jesse C Owens Antisiphonic plumbing unit
US2374989A (en) * 1943-04-21 1945-05-01 Funk Peter George Valve
US2655178A (en) * 1948-12-29 1953-10-13 Blaw Knox Co Valved water inlet nozzle for concrete mixers or the like

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4088191A (en) * 1972-07-24 1978-05-09 Chevron Research Company High pressure jet well cleaning
US4553560A (en) * 1983-06-14 1985-11-19 Wastemate Corporation Anti-siphon control valve
WO2002029170A1 (en) * 2000-10-06 2002-04-11 Fominaya Agullo, Pablo Faucet for filling tanks
ES2166734A1 (en) * 2000-10-06 2002-04-16 Agullo Pablo Fominaya Faucet for filling tanks
US6826998B2 (en) 2002-07-02 2004-12-07 Lillbacka Jetair Oy Electro Hydraulic servo valve
US20130160875A1 (en) * 2011-12-22 2013-06-27 Gregory Schriner Plug valve with bowing rigid arms
US8875739B2 (en) * 2011-12-22 2014-11-04 The Dial Corporation Plug valve with bowing rigid arms
USD787646S1 (en) 2014-09-12 2017-05-23 Zurn Industries, Llc Flush valve diaphragm
US9896829B2 (en) 2014-09-12 2018-02-20 Zurn Industries, Llc Flush valve diaphragm
CN105297854A (en) * 2015-11-17 2016-02-03 厦门瑞尔特卫浴科技股份有限公司 Water inlet valve and water outlet noise reducing structure thereof

Also Published As

Publication number Publication date
JPS4939064B1 (en) 1974-10-23
DE2031176A1 (en) 1971-01-14
FR2052833A5 (en) 1971-04-09
NL7009445A (en) 1970-12-29
SE353116B (en) 1973-01-22
BE752521A (en) 1970-12-01
FI47592B (en) 1973-10-01
FI47592C (en) 1974-01-10

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