WO1992014888A1 - Waste valve fittings - Google Patents

Waste valve fittings Download PDF

Info

Publication number
WO1992014888A1
WO1992014888A1 PCT/GB1992/000297 GB9200297W WO9214888A1 WO 1992014888 A1 WO1992014888 A1 WO 1992014888A1 GB 9200297 W GB9200297 W GB 9200297W WO 9214888 A1 WO9214888 A1 WO 9214888A1
Authority
WO
WIPO (PCT)
Prior art keywords
diaphragm
outlet fitting
waste outlet
channel
tubular
Prior art date
Application number
PCT/GB1992/000297
Other languages
French (fr)
Inventor
Alan Charles Cole
Original Assignee
Ac Developments Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to GB9103681.4 priority Critical
Priority to GB919103681A priority patent/GB9103681D0/en
Application filed by Ac Developments Limited filed Critical Ac Developments Limited
Publication of WO1992014888A1 publication Critical patent/WO1992014888A1/en

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03CDOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/12Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
    • E03C1/28Odour seals
    • E03C1/298Odour seals consisting only of non-return valve
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03CDOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/12Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
    • E03C1/22Outlet devices mounted in basins, baths, or sinks
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03CDOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/12Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
    • E03C1/28Odour seals
    • E03C1/284Odour seals having U-shaped trap
    • E03C1/288Odour seals having U-shaped trap having non-return valves against return of waste water
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00Check valves
    • F16K15/14Check valves with flexible valve members
    • F16K15/148Check valves with flexible valve members the closure elements being fixed in their centre

Abstract

A waste outlet fitting (1) has a tubular body (2) in which a cartridge (3) is mounted. An elastomeric diaphragm (6) is carried by a central support member (4) integral with the cartridge and defines a skirt flaring outwardly to normally close the bore of the cartridge (25) and thus the tubular body (2). Part of the cartridge wall may be elastomeric for improved sealing with the diaphragm (6). Pressure of water leaving a basin via the outlet fitting (1) causes the diaphragm to deflect downwardly and inwardly allowing water to pass. When the basin is empty the diaphragm (6) returns to its original position under its own resilience, thus sealing the outlet from any back flow.

Description

WASTE V.ALVE FITTINGS
This invention relates to the field of waste outlet fittings, in particular to such fittings normally used with sinks, hand basins, shower trays, baths, bidets and the like, which for convenience are commonly referred to herein as "basins". Known waste outlet fittings comprise a flange which is located within the bowl of the basin and defines a seat for co-operation with a plug to close the outlet. In some cases the plug is incorporated in the fitting which also includes means for raising and lowering the plug, such fittings being known as "pop-up waste" fittings. At the lower end the fittings comprise externally threaded tubular parts for connection to further pipework leading to the drains.
Safety regulations require that waste outlets should be fitted with a water trap for preventing flow of unpleasant smelling gases back up through the pipes from the drains. The water trap, often in the form of a ϋ bend, is generally connected to the waste outlet by a threaded connection. The water trapped in the bend acts as a seal to prevent the flow of gases, but flow of soiled water through the trap is substantially unimpeded. The need for a water trap is often inconvenient, especially where space is restricted. Thus, shower trays must frequently be raised to accommodate the traps beneath them. In addition, water traps are not normally easily accessible for maintenance, e.g. to unblock the trap should it become blocked, which is apt to occur from time-to-time. Such operations are especially inconvenient and costly when a trap is concealed by tiling or other permanent fixtures.
According to the present invention there is provided a waste outlet fitting comprising a generally tubular body and a discharge channel extending through the body, characterised in that a support member is mounted within the body, and a diaphragm carried on the support member defines a skirt flaring outwardly in the downstream direction and having a free peripheral edge for sealing engagement with the wall of the channel thereby to form a valve to prevent reverse flow of fluid through the channel.
The diaphragm acts as a valve member which co-operates with the channel wall to define a check valve which allows essentially unrestricted flow of waste water out through the fitting but which prevents flow of gases in the reverse direction. The diaphragm can be accommodated within a waste fitting without having to increase significantly the length of the body, and as the diaphragm valve obviates the need for a water trap a substantial space saving is achieved. A waste outlet fitting with such a valve has the further advantage that it can preclude the need for a separate air admittance valve for allowing air to enter a stack pipe.
The pressure of the water leaving the basin via the outlet causes the diaphragm to deflect downwardly and inwardly, so that the water passes between the free edge of the diaphragm and the channel wall. When the basin has been emptied the diaphragm under its own resilience returns to its original position, thus sealing the discharge channel from any back flow of gases or water. Any pressure from below only acts to enhance the sealing pressure between the edge of the diaphragm and the wall of the discharge channel. A small volume of water may be retained above the diaphragm when it closes but will not have any adverse effect on the valve operation.
Preferably the diaphragm is accessible, and in particular can be removed from the fitting through the inlet or upstream end of the body, whereby maintenance operations are simplified as the valve can be reached from within the basin.
In an especially convenient embodiment the diaphragm support member is fixed to a cylinder which has a sliding fit in the tubular body and defines the channel wall portion against which the skirt seals. In this way the diaphragm, support member and cylinder can be preasse bled to be inserted and subsequently removed from, the tubular body as a unit, to facilitate manufacture and maintenance.
In order to ensure a reliable seal between the diaphragm and the discharge channel with only light sealing pressure, it is preferable that the elastomeric skirt is substantially conical and inclined at an angle not greater than about 60° to the axis of the tubular body. Tests have shown good results are obtained with an angle in the range of 20° to 60°, more particularly 30° to 40°. The diaphragm may also be provided with support ribs on the underside of the skirt to enhance its stiffness or resilience and/or with annulated ribs on the upper face of the skirt to enhance the seal with the inner wall of the channel. At its peripheral edge portion the skirt may have a dome-shape so that the channel wall is substantially tangential to the skirt at the sealing location.
According to a preferred feature the channel wall against which the diaphragm seals is lined with a material with which the diaphragm has an enhanced sealing affinity. The channel wall may be coated with an appropriate sealing material, such as PTFE, or a sleeve of elastomeric material may be fitted within the channel wall. When the sleeve is fitted within a cylinder inserted into the tubular body as mentioned above it can also serve to seal the cylinder to the tubular body.
The diaphragm can be clamped to the support member, such as by a screw and washer engaged with the support, but in a preferred embodiment an inner edge of the diaphragm is engaged in a groove provided in the support member to secure the diaphragm in place.
To assist a clear understanding of the invention a more detailed description of some embodiments is given below with reference to the accompanying drawings, in which:-
Fig. 1 is an axial section through a fitting in accordance with the invention;
Fig. 2 is an axial section through another fitting in accordance with the invention.
Fig. 3 is an axial section through a pop-Up waste fitting embodying the invention and
Fig. 4 is an enlarged view of the detail A in Figure 2.
The waste outlet fitting 1 as shown in Figure 1, comprises a generally tubular body 2 which defines a discharge channel, a strainer 3, a support member 4 in the form of an axial stem integral with the strainer 3, and a diaphragm 6. The tubular body 2 has a flange 8 at its upper end forming a seat for cooperation with a standard plug and adapted to extend around the outlet orifice of a basin, or the like, in conventional manner. The external surface of the body 2 is provided with a screwthread 10 for connection to pipework which connects the outlet fitting to the drains. An aperture 5 is formed in the body for connection with an overflow of the basin, as well known in the art.
The strainer 3 is detachably mounted in the body 2 a short distance below the flange by a bayonet type connection which allows quick release of the strainer, although screw or snap fit connections may be used, or a combination of all three. The bayonet connection comprises projections 7 within the body and segments on the underside of the strainer with grooves for engagement with the projections to allow the strainer to be locked in place and released for removal through the upper end of the body by rotation of the strainer through a small angle.
The stem 4 projects axially downwards from a central hub 9 of the strainer and at its lower end carries the diaphragm 6.
The diaphragm 6 is made of elastomeric material and is substantially conical in shape. It has a central aperture, the edge of which is engaged in a peripheral groove formed in the stem near its lower end. The skirt of the diaphragm is inclined and meets the inner wall of the tubular body at an angle of 10°-40°. With the outer edge of the diaphragm being curved and upon the skirt being deformed slightly upon insertion into the body 2, the angle of contact may be very small. The free edge 12 of the skirt bears against the inner wall 13 of the tubular body 2 under light pressure due to its own resilience for normally closing off the discharge channel.
The strainer 3, stem 4 and diaphragm 6 form a sub-assembly for insertion into and removal from the fitting body 2.
When the fitting is in use, waste water draining from the basin passes through the strainer 3 and down through the tubular body. The pressure of the water causes the skirt of the diaphragm to deflect inwards. The free edge 12 of the diaphragm is displaced from the inner wall of the body and water flows down the pipe. When the pressure drops the diaphragm returns to its normal position, as shown, and again seals the bore of the tubular body. A small amount of water may remain above the diaphragm. Any gases or liquid forced back up towards the basin are stopped by the diaphragm, the pressure of the gas or liquid pushing the free edge i2 more tightly against the inner wall. No unpleasant smells can therefore return up the outlet pipe from the drains.
An alternative embodiment of the invention is shown in Figure 2, in which the same reference numerals have been used to designate corresponding parts to those appearing in Figure 1. In this embodiment the upper end of the tubular body (2) is counterbored and receives a cylinder 25 with which the strainer 3 and support stem 4 are integral, the discharge channel being defined within the cylinder which defines the channel wall against which the peripheral sealing edge of the diaphragm bears. To improve the sealing performance of the diaphragm 6 a sleeve 23 of elastomeric material is set into the lower end of the cylinder 25 to line the channel wall portion against which the skirt of the diaphragm 6 bears. Instead of the sleeve 23, the inner surface of the cylinder may be coated with a sealing material such as PTFE. As shown in Fig. 4, the diaphragm 6 is provided with an annulated rib 26 which contacts and seals against the sleeve 23. The lower end of the cylinder 25 is sealed to the upwardly facing shoulder 22 of the tubular body 2 by means of an out-turned flange portion of the sealing sleeve 23. The cylinder 25, support stem 4, diaphragm 6 and sealing sleeve 23 are pre-assembled for insertion into, and subsequent removal from, the tubular body 2 as a unit. This unit or cartridge is held in place by a spring ring 24 received in a circumferential groove 27 in the cylinder 25 and adapted to engage with a snap action in an annular groove formed in the tubular body.
The valve defined by the diaphragm in the fitting of Fig. 2 operates in the same way as described above for the Figure 1 embodiment.
Figure 3 shows the modified version of the fitting of Fig. 2 and intended for a waste outlet of the kind having a pop-up plug. In this embodiment the stem 4 has an axial bore 15. Located inside the bore 15 is the stem 16 of the plug member 14, and the upper end of an actuator rod 17. The rod 17 can be raised and lowered for operating the plug by any known mechanism. The actuator rod is sealed to the stem by an '0' ring 21 which surrounds the rod within the bore 15, but other seal arrangements are possible. The diaphragm is fitted onto the stem 4 in the same manner as that in the embodiment of Figure 1. Above the diaphragm the stem 4 has a radial hole 18 out through which any water passing down through the bore 15 can escape to the main channel around the stem 4.
The diaphragm 6 defines a check valve which functions in the same way as in the embodiments of Figure 1 and 2. Gases are prevented from passing upwardly through the fitting by the diaphragm, by the 0' ring 21 and by the seal provided by sleeve 23 between the cylinder 25 and the tubular body.
In all the described embodiments valve maintenance is easy. For example, to replace a damaged or worn diaphragm in the Figure 1 embodiment, the strainer is released and the sub-assembly of strainer, support stem and diaphragm can be withdrawn axially out of the body from within the basin. After detaching the old diaphragm and fitting the new one the sub-assembly is re-inserted and the strainer locked in place. In the Figure 2 embodiment the cartridge is withdrawn as a unit allowing easy replacement of the diaphragm 6 and/or sleeve 23. Of course, with the pop-up waste fitting the plug must be lifted out first, and it may be necessary to disconnect the actuating rod from its operating mechanism.

Claims

CLAIMS : -
1. A waste outlet fitting comprising a generally tubular body (2) and a discharge channel extending through the body, characterised in that a support member (4) is mounted within the body, and a diaphragm (6) carried on the support member defines a skirt flaring outwardly in the downstream direction and having a free peripheral edge for sealing engagement with the wall of the channel thereby to form a valve to prevent reverse flow of fluid through the channel.
2. A waste outlet fitting as claimed in claim 1, wherein the support member (4) is removably mounted within the body (2) .
3. A waste outlet fitting as claimed in claim 1 or 2, wherein the diaphragm (6) is made of an elastomeric material.
4. A waste outlet fitting as claimed in claim 1, 2 or 3, wherein the skirt of the diaphragm (6) is substantially conical and inclined at an angle not ggrreeaatteerr 4than 60° to the axis of the discharge channel.
5. A waste outlet fitting as claimed in claim 4, wherein the angle of inclination of the diaphragm (6) to the axis of the channel is from 20 to 60 .
6. A waste outlet fitting as claimed in claim 4, wherein the angle of inclination of the diaphragm (6) to the axis of the channel is from 30° to 40°.
7. A waste outlet fitting as claimed in any one of claims 1 to 6, wherein the diaphragm (6) is provided with stiffening ribs on the underside of the skirt.
8. A waste outlet fitting according to any one of claims 1 to 7, wherein the free sealing edge of the diaphragm (6) is formed by an annular rib (26) extending around the skirt.
9. A waste outlet fitting as claimed in any one of claims 1 to 8, wherein the diaphragm (6) has an inner edge engaged in a groove provided in the support member (4) to secure the diaphragm to the support member.
10. A waste outlet fitting as claimed in any of claims 1 to 9, wherein the support member (4) is fastened to and extends axially from a strainer (3) mounted in the tubular body (2) .
11. A waste outlet fitting as claimed in any one of claims 1 to 10, wherein the wall of the channel is lined with sealing material at the position of the sealing engagement of the skirt.
12. A waste outlet fitting as claimed in claim 11, wherein a sleeve (23) of elastomeric material is located within the channel.
13. A waste outlet fitting as claimed in claim 11, wherein the wall of the channel is coated with the sealing material.
14. A waste outlet fitting as claimed in claim 11, 12 or 13, wherein the sealing material is PTFE.
15. A waste outlet fitting as claimed in any one of claims 1 to 14, wherein the support member (4) is fixed to a cylinder received in the tubular body and defining the channel wall against which the skirt edge seals.
16. A waste outlet fitting as claimed in claim 15, wherein the diaphragm (6) and support (4) and cylinder (25) are preassembled for insertion into, and removal from the tubular body (2) as a unit.
17. A waste outlet fitting as claimed in claim 15 or 16, wherein the cylinder (25) is held in the tubular body (2) by a spring ring engaging in confronting annular grooves in the cylinder and the tubular body.
18. A waste outlet fitting as claimed in claim 15, 16 or 17, wherein the discharge end of the cylinder (25) is sealed against a confront shoulder (22) on the tubular body by a layer of sealing material.
19. A waste outlet fitting as claimed in any one of claims 1 to 18, wherein the support member (4) is tubular and serves to guide a pop-up plug actuating member.
PCT/GB1992/000297 1991-02-21 1992-02-20 Waste valve fittings WO1992014888A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB9103681.4 1991-02-21
GB919103681A GB9103681D0 (en) 1991-02-21 1991-02-21 Waste valve fittings

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU12588/92A AU653990B2 (en) 1991-02-21 1992-02-20 Waste valve fittings
GB9316588A GB2268055B (en) 1991-02-21 1993-08-10 Waste valve fittings

Publications (1)

Publication Number Publication Date
WO1992014888A1 true WO1992014888A1 (en) 1992-09-03

Family

ID=10690373

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1992/000297 WO1992014888A1 (en) 1991-02-21 1992-02-20 Waste valve fittings

Country Status (5)

Country Link
EP (1) EP0572468A1 (en)
AU (1) AU653990B2 (en)
CA (1) CA2104235A1 (en)
GB (2) GB9103681D0 (en)
WO (1) WO1992014888A1 (en)

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0609608A1 (en) * 1993-02-02 1994-08-10 Bradford-White Corporation Water heater heat trap
WO2006062392A1 (en) * 2004-12-06 2006-06-15 Ceves-Vergeer Bv Backflow-preventer
EP1936047A1 (en) 2006-12-18 2008-06-25 Geberit Technik Ag Drain fitting for a sanitary item
FR2942814A1 (en) * 2009-03-09 2010-09-10 Wirquin Plastiques Sa Water evacuation assembly for basin in washroom or bathroom, has water evacuation conduit extended from plug body, and control lever extended from plug body by inscribing control lever in space at height included in height of conduit
WO2012004575A1 (en) * 2010-07-08 2012-01-12 Polypipe Terrain Ltd Fluid control valve
EP2427677A1 (en) * 2009-05-05 2012-03-14 Liquidbreaker, LLC Drain cartridge having removable valved system
EP2532796A1 (en) * 2011-06-06 2012-12-12 Aco Severin Ahlmann Gmbh & Co. Kg Bell shaped odour stopper
EP2589716A1 (en) * 2011-11-07 2013-05-08 TECE GmbH Odour trap
CN103114645A (en) * 2013-02-22 2013-05-22 薛宜 Silica gel type sealing floor drain
CN103132573A (en) * 2013-02-22 2013-06-05 薛宜 Silica-gel-type sealing floor drain
WO2013181766A1 (en) * 2012-06-06 2013-12-12 Swiss Inventis Pharma And Water Ag Odour trap for a sanitary water drain
EP2088252A3 (en) * 2007-05-17 2013-12-18 Personnel Hygiene Services Limited Odour seal for an urinal
NL2010138C2 (en) * 2013-01-17 2014-07-21 Easy Sanitairy Solutions Bv Siphon with enlarged water lock.
EP2762647A1 (en) * 2013-01-31 2014-08-06 CRS S.p.A. Drainage element for bathroom fixtures fitted with a backflow prevention device
EP2840191A1 (en) 2013-08-21 2015-02-25 Geberit International AG Odour trap device
CN105178408A (en) * 2009-05-05 2015-12-23 李奎德布瑞科尔公司 Drain cartridge having removable valved system
EP3006632A1 (en) * 2014-10-10 2016-04-13 Herikon B.V. Odour trap and method for positioning the odour trap in an outlet pipe
US9353875B2 (en) 2011-03-01 2016-05-31 Ian Lyons Valve insert
WO2017032987A1 (en) * 2015-08-21 2017-03-02 Mcalpine & Co Limited Draining system for bathtub
EP3138973A1 (en) * 2015-09-07 2017-03-08 Swiss Invent AG Odour trap for a sanitary water drain
WO2018189313A1 (en) * 2017-04-13 2018-10-18 Swiss Invent Ag Odor trap for waterless urinal having clog protection
DE102017111587A1 (en) 2017-05-29 2018-11-29 Swiss Invent Ag lifting bayonet
DE102017212880A1 (en) * 2017-07-26 2019-01-31 Blanco Gmbh + Co Kg A drain cup for use in a drain valve of a sanitary receptacle
US10458106B2 (en) * 2015-11-02 2019-10-29 Zurn Industries, Llc Waterless trap

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PT3434840T (en) * 2017-07-24 2020-02-14 Viega Tech Gmbh & Co Kg Odour closure device for sanitary fixtures, in particular urinals

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DE14444C (en) *
US2211212A (en) * 1939-09-14 1940-08-13 Jesse D Langdon Siphon breaker and valve
US2675823A (en) * 1949-09-07 1954-04-20 Jesse D Langdon Backflow preventer
US2912999A (en) * 1955-07-18 1959-11-17 Ronald C Kersh Fluid check valve
US3565106A (en) * 1968-11-06 1971-02-23 William J Baumbach Diaphragm for flood and suds control
FR2373740A1 (en) * 1976-12-10 1978-07-07 Tuboplast France Squeeze tube non-return valve - is made from flexible ring to prevent air entry into tube
EP0305572A1 (en) * 1987-09-03 1989-03-08 KERAMAG Keramische Werke Aktiengesellschaft Outlet device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE14444C (en) *
US2211212A (en) * 1939-09-14 1940-08-13 Jesse D Langdon Siphon breaker and valve
US2675823A (en) * 1949-09-07 1954-04-20 Jesse D Langdon Backflow preventer
US2912999A (en) * 1955-07-18 1959-11-17 Ronald C Kersh Fluid check valve
US3565106A (en) * 1968-11-06 1971-02-23 William J Baumbach Diaphragm for flood and suds control
FR2373740A1 (en) * 1976-12-10 1978-07-07 Tuboplast France Squeeze tube non-return valve - is made from flexible ring to prevent air entry into tube
EP0305572A1 (en) * 1987-09-03 1989-03-08 KERAMAG Keramische Werke Aktiengesellschaft Outlet device

Cited By (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU664778B2 (en) * 1993-02-02 1995-11-30 Bradford-White Corporation Water heater heat trap
EP0609608A1 (en) * 1993-02-02 1994-08-10 Bradford-White Corporation Water heater heat trap
WO2006062392A1 (en) * 2004-12-06 2006-06-15 Ceves-Vergeer Bv Backflow-preventer
EP1936047A1 (en) 2006-12-18 2008-06-25 Geberit Technik Ag Drain fitting for a sanitary item
EP2088252A3 (en) * 2007-05-17 2013-12-18 Personnel Hygiene Services Limited Odour seal for an urinal
FR2942814A1 (en) * 2009-03-09 2010-09-10 Wirquin Plastiques Sa Water evacuation assembly for basin in washroom or bathroom, has water evacuation conduit extended from plug body, and control lever extended from plug body by inscribing control lever in space at height included in height of conduit
EP3447202A1 (en) * 2009-05-05 2019-02-27 Liquidbreaker, LLC Drain cartridge having removable valved system
EP2427677A1 (en) * 2009-05-05 2012-03-14 Liquidbreaker, LLC Drain cartridge having removable valved system
CN102459972A (en) * 2009-05-05 2012-05-16 李奎德布瑞科尔公司 Drain cartridge having removable valved system
EP2427677A4 (en) * 2009-05-05 2012-10-31 Liquidbreaker Llc Drain cartridge having removable valved system
CN105178408A (en) * 2009-05-05 2015-12-23 李奎德布瑞科尔公司 Drain cartridge having removable valved system
CN105178408B (en) * 2009-05-05 2018-04-24 李奎德布瑞科尔公司 Drainage filter core with detachable valve system
GB2481844B (en) * 2010-07-08 2017-10-18 Polypipe Ltd Fluid control valve
WO2012004575A1 (en) * 2010-07-08 2012-01-12 Polypipe Terrain Ltd Fluid control valve
US9933102B2 (en) 2011-03-01 2018-04-03 Ian Lyons Valve insert
US9353875B2 (en) 2011-03-01 2016-05-31 Ian Lyons Valve insert
US10371304B2 (en) 2011-03-01 2019-08-06 Ian Lyons Valve insert
EP2532796A1 (en) * 2011-06-06 2012-12-12 Aco Severin Ahlmann Gmbh & Co. Kg Bell shaped odour stopper
EP2589716A1 (en) * 2011-11-07 2013-05-08 TECE GmbH Odour trap
EP2859155B1 (en) 2012-06-06 2017-02-15 Swiss Invent AG Odour trap for a sanitary water drain
CH706596A1 (en) * 2012-06-06 2013-12-13 Keller Hans Odor trap for a sanitary water runoff.
WO2013181766A1 (en) * 2012-06-06 2013-12-12 Swiss Inventis Pharma And Water Ag Odour trap for a sanitary water drain
EP2757203A1 (en) * 2013-01-17 2014-07-23 Easy Sanitary Solutions B.V. Siphon with enlarged water seal
NL2010138C2 (en) * 2013-01-17 2014-07-21 Easy Sanitairy Solutions Bv Siphon with enlarged water lock.
EP2762647A1 (en) * 2013-01-31 2014-08-06 CRS S.p.A. Drainage element for bathroom fixtures fitted with a backflow prevention device
CN103114645A (en) * 2013-02-22 2013-05-22 薛宜 Silica gel type sealing floor drain
CN103132573B (en) * 2013-02-22 2015-04-22 瑞安市友邦标准件有限公司 Silica-gel-type sealing floor drain
CN103132573A (en) * 2013-02-22 2013-06-05 薛宜 Silica-gel-type sealing floor drain
US9951503B2 (en) 2013-08-21 2018-04-24 Geberit International Ag Odor trap device
CN105473794B (en) * 2013-08-21 2017-09-15 吉博力国际股份公司 Smell isolating device
CN105473794A (en) * 2013-08-21 2016-04-06 吉博力国际股份公司 Odour-trap device
EP2840191A1 (en) 2013-08-21 2015-02-25 Geberit International AG Odour trap device
EP3006632A1 (en) * 2014-10-10 2016-04-13 Herikon B.V. Odour trap and method for positioning the odour trap in an outlet pipe
WO2017032987A1 (en) * 2015-08-21 2017-03-02 Mcalpine & Co Limited Draining system for bathtub
EP3138973A1 (en) * 2015-09-07 2017-03-08 Swiss Invent AG Odour trap for a sanitary water drain
US10458106B2 (en) * 2015-11-02 2019-10-29 Zurn Industries, Llc Waterless trap
WO2018189313A1 (en) * 2017-04-13 2018-10-18 Swiss Invent Ag Odor trap for waterless urinal having clog protection
DE102017111587A1 (en) 2017-05-29 2018-11-29 Swiss Invent Ag lifting bayonet
DE102017212880A1 (en) * 2017-07-26 2019-01-31 Blanco Gmbh + Co Kg A drain cup for use in a drain valve of a sanitary receptacle

Also Published As

Publication number Publication date
EP0572468A1 (en) 1993-12-08
GB2268055B (en) 1994-08-03
GB2268055A (en) 1994-01-05
AU1258892A (en) 1992-09-15
GB9103681D0 (en) 1991-04-10
CA2104235A1 (en) 1992-08-22
AU653990B2 (en) 1994-10-20
GB9316588D0 (en) 1993-10-20

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