EP0654641A2 - Overflow armature for safety valve - Google Patents

Overflow armature for safety valve Download PDF

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Publication number
EP0654641A2
EP0654641A2 EP94890179A EP94890179A EP0654641A2 EP 0654641 A2 EP0654641 A2 EP 0654641A2 EP 94890179 A EP94890179 A EP 94890179A EP 94890179 A EP94890179 A EP 94890179A EP 0654641 A2 EP0654641 A2 EP 0654641A2
Authority
EP
European Patent Office
Prior art keywords
funnel
insert
vessel
cup
upper edge
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.)
Granted
Application number
EP94890179A
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German (de)
French (fr)
Other versions
EP0654641B1 (en
EP0654641A3 (en
Inventor
Gerald Orehounig
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BWT Holding GmbH
Original Assignee
BWT AG
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Filing date
Publication date
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Publication of EP0654641A2 publication Critical patent/EP0654641A2/en
Publication of EP0654641A3 publication Critical patent/EP0654641A3/en
Application granted granted Critical
Publication of EP0654641B1 publication Critical patent/EP0654641B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/12—Arrangements for connecting heaters to circulation pipes
    • F24H9/13—Arrangements for connecting heaters to circulation pipes for water heaters
    • F24H9/133—Storage heaters
    • F24H9/136—Arrangement of inlet valves used therewith

Definitions

  • the subject invention relates to an overflow fitting for a safety valve consisting of a cup-like vessel formed with a drain pipe, which is provided with a funnel-like insert and with an odor trap in the form of a pipe surrounding the funnel-like insert and closed at its lower end, the upper one Edge of the funnel-like insert is attached to the upper edge of the cup-like vessel.
  • overflow fittings which are arranged below safety valves for hot water storage, are used in the event that the safety valve triggers to absorb the water flowing out of it.
  • the funnel-like insert is rotationally symmetrical and is firmly connected to the cup-like overflow vessel.
  • the connecting pipe provided in the wall for the assembly of the overflow valve is not always exactly perpendicular below the safety valve, but is laterally offset with respect to it.
  • the funnel connection of the overflow fitting is not exactly below the outlet pipe of the safety valve.
  • splash water is caused.
  • splash water is also caused as soon as the safety valve triggers.
  • the object of the invention is therefore to provide an overflow fitting for safety valves, through which even if the associated connecting pipes for the safety valve and for the overflow fitting are not exactly aligned with one another, the overflow can be adjusted in a simple manner Fitting can be made such that the funnel connection of the overflow vessel is located vertically below the outlet pipe of the safety valve.
  • the axis of the funnel neck is arranged eccentrically with respect to the upper edge of the insert and in that the funnel-like insert is rotatable with respect to the cup-like vessel.
  • the funnel-like insert is formed at its upper edge with a downwardly projecting cylindrical projection, which comes into contact with the inner wall of the cup-like vessel, and with an annular stop surface, which comes into contact with the upper edge of the cup-like vessel.
  • the eccentricity of the central axis of the funnel nozzle is preferably 5 mm to 15 mm, in particular 10 mm.
  • An overflow fitting according to the invention consists of a cup-like vessel 1, which is formed with a drain pipe 11. By means of this drain pipe 11, this is cup-like Vessel 1 can be connected to a drain pipe located in a wall.
  • the cup-like vessel 1 is also formed with a funnel-like insert 2, which is surrounded by a tube piece 3, which serves as an odor trap and is closed on its underside.
  • the funnel-like insert 2 is formed at its upper edge with a cylindrical projection 21 which bears against the inner wall of the cup-like vessel 1.
  • the insert 21 is also formed with an annular stop surface 22 which lies opposite the upper end surface 12 of the cup-like vessel 1.
  • the funnel nozzle 23 is arranged eccentrically with respect to the cylindrical extension 22. Since the funnel-shaped insert 2 is not rigidly connected to the cup-like vessel 1, it can be rotated relative to the latter.
  • the pipe section 3 is fastened to the funnel connection 23 by means of webs 31.
  • a pressure relief valve assigned to a hot water tank opens, causing water to flow out of its outlet pipe 4, a water jet 5 passes through the funnel-like insert 2 into the cup-like vessel 1 and flows down through the funnel nozzle 23 or between the funnel nozzle 23 and the pipe piece 3, as indicated by arrows in FIG. 2, upwards into the cup-like vessel 1 and finally through the pipe section 11. This causes an odor trap.
  • the funnel nozzle 23 Due to the high pressure with which the water jet 5 enters the funnel-like insert 2, the funnel nozzle 23 must be located exactly below the outlet pipe 4 in order to avoid splashing water. In order to enable this precise alignment of the funnel nozzle 23 with respect to the outlet pipe 4, the funnel nozzle 23 is arranged eccentrically on the funnel-like insert 2. As a result, by twisting the insert 2, the funnel connection piece 23 can extend transversely to the pipe section 11 the double eccentricity can be adjusted, whereby inaccuracies in the lateral arrangement of the outlet pipe 4 compared to the wall-side connection for the drain pipe can be compensated.
  • the distance to the drain pipe can be chosen by the length of the pipe section 11.
  • the eccentricity of the funnel nozzle 23 was chosen to be 10 mm, as a result of which lateral deviations in the connection to the drain pipe compared to the safety valve can be compensated for by up to 20 mm, without any disadvantages being caused thereby.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Safety Valves (AREA)
  • Apparatus For Making Beverages (AREA)
  • Sink And Installation For Waste Water (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Devices For Dispensing Beverages (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)

Abstract

Overflow fitting for a safety valve, comprising a beaker-like vessel (1) which is constructed with an outlet pipe (11) and is equipped with a funnel-like insert (2) and with an air trap in the form of a pipe (3) surrounding the funnel-like insert (2) and closed at its lower end, the upper edge of the funnel-like insert (2) being fixed to the upper edge of the beaker-like vessel (1). In this arrangement, the axis of the funnel nozzle (23) is arranged eccentrically with respect to the upper edge (21) of the insert (2), and the funnel-like insert (2) is rotatable with respect to the beaker-like vessel (1). <IMAGE>

Description

Die gegenständliche Erfindung betrifft eine Überlauf-Armatur für ein Sicherheitsventil bestehend aus einem mit einem Ablaufrohr ausgebildeten becherartigen Gefäß, welches mit einem trichterartigen Einsatz und mit einem Geruchsverschluß in Form eines den trichterartigen Einsatz umgebenden und an seinem unteren Ende geschlossenen Rohres versehen ist, wobei der obere Rand des trichterartigen Einsatzes am oberen Rand des becherartigen Gefäßes befestigt ist.The subject invention relates to an overflow fitting for a safety valve consisting of a cup-like vessel formed with a drain pipe, which is provided with a funnel-like insert and with an odor trap in the form of a pipe surrounding the funnel-like insert and closed at its lower end, the upper one Edge of the funnel-like insert is attached to the upper edge of the cup-like vessel.

Derartige Überlauf-Armaturen, welche unterhalb von Sicherheitsventilen für Heißwasserspeicher angeordnet werden, dienen dazu, im Falle, daß das Sicherheitsventil auslöst, das aus diesem ausströmende Wasser aufzunehmen.Such overflow fittings, which are arranged below safety valves for hot water storage, are used in the event that the safety valve triggers to absorb the water flowing out of it.

Bei bekannten derartigen Überlauf-Armaturen ist der trichterartige Einsatz rotationssymmetrisch ausgebildet und ist er mit dem becherartigen Überlaufgefäß fest verbunden. Bei der Montage einer derartigen Armatur besteht jedoch das Problem, daß sich das in der Wand für die Montage der Überlauf-Armatur vorgesehene Anschlußrohr nicht immer genau lotrecht unterhalb des Sicherheitsventiles befindet, sondern gegenüber diesem seitlich versetzt ist. Dies hat zur Folge, daß sich der Trichterstutzen der Überlauf-Armatur nicht genau unterhalb des Auslaufrohres des Sicherheitsventiles befindet. Unter Berücksichtigung des Sachverhaltes, daß bei einem Auslösen des Sicherheitsventiles aus diesem ein unter hohem Druck stehender Wasserstrahl austritt, hat dies zur Folge, daß Spritzwasser bedingt wird. Um dies zu vermeiden, ist es bekannt, die Überlauf-Armatur geringfügig zu verdrehen, wodurch sich zwar der Einlauftrichter mittig unterhalb des Auslaufrohres des Sicherheitsventils befindet. Da jedoch dann der an den Einlauftrichter anschließende Trichterstutzen nicht lotrecht ausgerichtet ist, wird auch dabei dann, sobald das Sicherheitsventil auslöst, Spritzwasser verursacht.In known overflow fittings of this type, the funnel-like insert is rotationally symmetrical and is firmly connected to the cup-like overflow vessel. When assembling such a valve, however, there is the problem that the connecting pipe provided in the wall for the assembly of the overflow valve is not always exactly perpendicular below the safety valve, but is laterally offset with respect to it. The consequence of this is that the funnel connection of the overflow fitting is not exactly below the outlet pipe of the safety valve. Taking into account the fact that when the safety valve is triggered, a high-pressure water jet emerges from it, this has the consequence that splash water is caused. In order to avoid this, it is known to twist the overflow fitting slightly, as a result of which the inlet funnel is located centrally below the outlet pipe of the safety valve. However, since the funnel connection adjoining the inlet funnel is then not aligned vertically, splash water is also caused as soon as the safety valve triggers.

Der gegenständlichen Erfindung liegt demnach die Aufgabe zugrunde, eine Überlauf-Armatur für Sicherheitsventile zu schaffen, durch welche auch dann, wenn die einander zugeordneten Anschlußrohre für das Sicherheitsventil und für die Überlauf-Armatur nicht exakt zueinander ausgerichtet sind, in einfacher Weise eine Einstellung der Überlauf-Armatur dahingehend vorgenommen werden kann, daß sich der Trichterstutzen des Überlaufgefäßes lotrecht unterhalb des Auslaßrohres des Sicherheitsventiles befindet.The object of the invention is therefore to provide an overflow fitting for safety valves, through which even if the associated connecting pipes for the safety valve and for the overflow fitting are not exactly aligned with one another, the overflow can be adjusted in a simple manner Fitting can be made such that the funnel connection of the overflow vessel is located vertically below the outlet pipe of the safety valve.

Dies wird erfindungsgemäß dadurch erzielt, daß die Achse des Trichterstutzens gegenüber dem oberen Rand des Einsatzes exzentrisch angeordnet ist und daß der trichterartige Einsatz gegenüber dem becherartigen Gefäß verdrehbar ist. Vorzugsweise ist der trichterartige Einsatz an seinem oberen Rand mit einem nach unten abragenden zylindrischen Ansatz, welcher an der Innenwand des becherartigen Gefäßes zur Anlage kommt, und mit einer ringförmigen Anschlagfläche, welche an den oberen Rand des becherartigen Gefäßes zur Anlage kommt, ausgebildet. Die Exzentrizität der Mittelachse des Trichterstutzens beträgt vorzugsweise 5 mm bis 15 mm, insbesondere 10 mm.This is achieved according to the invention in that the axis of the funnel neck is arranged eccentrically with respect to the upper edge of the insert and in that the funnel-like insert is rotatable with respect to the cup-like vessel. Preferably, the funnel-like insert is formed at its upper edge with a downwardly projecting cylindrical projection, which comes into contact with the inner wall of the cup-like vessel, and with an annular stop surface, which comes into contact with the upper edge of the cup-like vessel. The eccentricity of the central axis of the funnel nozzle is preferably 5 mm to 15 mm, in particular 10 mm.

Der Gegenstand der Erfindung ist nachstehend anhand eines in der Zeichnung dargestellten Ausführungsbeispiels näher erläutert. Es zeigen:

Fig. 1
eine Überlauf-Armatur für ein Sicherheitsventil, in Seitenansicht und teilweise im Schnitt,
Fig. 2
diese Überlauf-Armatur in Vorderansicht, im Schnitt, und
Fig. 3
diese Überlauf-Armatur, in Draufsicht.
The object of the invention is explained below with reference to an embodiment shown in the drawing. Show it:
Fig. 1
an overflow fitting for a safety valve, in side view and partly in section,
Fig. 2
this overflow fitting in front view, in section, and
Fig. 3
this overflow fitting, in top view.

Eine erfindungsgemäße Überlauf-Armatur besteht aus einem becherartigen Gefäß 1, welches mit einem Abflußrohr 11 ausgebildet ist. Mittels dieses Ablaufrohres 11 ist das becherartige Gefäß 1 an ein in einer Wand befindliches Ablaufrohr anschließbar.An overflow fitting according to the invention consists of a cup-like vessel 1, which is formed with a drain pipe 11. By means of this drain pipe 11, this is cup-like Vessel 1 can be connected to a drain pipe located in a wall.

Das becherartige Gefäß 1 ist weiters mit einem trichterartigen Einsatz 2 ausgebildet, welcher von einem als Geruchsverschluß dienenden, an seiner Unterseite abgeschlossenen Rohrstück 3 umgeben ist. Der trichterartige Einsatz 2 ist an seinem oberen Rand mit einem zylindrischen Ansatz 21 ausgebildet, welche an die Innenwand des becherartigen Gefäßes 1 anliegt. Der Einsatz 21 ist weiters mit einer ringförmigen Anschlagfläche 22 ausgebildet, welche der oberen Stirnfläche 12 des becherartigen Gefäßes 1 gegenüberliegt. Weiters ist der Trichterstutzen 23 gegenüber dem zylindrischen Ansatz 22 exzentrisch angeordnet. Da der trichterförmige Einsatz 2 mit dem becherartigen Gefäß 1 nicht starr verbunden ist, ist er gegenüber diesem verdrehbar. Das Rohrstück 3 ist am Trichterstutzen 23 mittels Stegen 31 befestigt.The cup-like vessel 1 is also formed with a funnel-like insert 2, which is surrounded by a tube piece 3, which serves as an odor trap and is closed on its underside. The funnel-like insert 2 is formed at its upper edge with a cylindrical projection 21 which bears against the inner wall of the cup-like vessel 1. The insert 21 is also formed with an annular stop surface 22 which lies opposite the upper end surface 12 of the cup-like vessel 1. Furthermore, the funnel nozzle 23 is arranged eccentrically with respect to the cylindrical extension 22. Since the funnel-shaped insert 2 is not rigidly connected to the cup-like vessel 1, it can be rotated relative to the latter. The pipe section 3 is fastened to the funnel connection 23 by means of webs 31.

Soferne ein einem Heißwasserspeicher zugeordnetes Überdruckventil öffnet, wodurch aus dessen Auslaufrohr 4 Wasser ausströmt, gelangt ein Wasserstrahl 5 durch den trichterartigen Einsatz 2 in das becherartige Gefäß 1, und strömt durch den Trichterstutzen 23 nach unten bzw. zwischen dem Trichterstutzen 23 und dem Rohrstück 3, wie dies in Fig. 2 durch Pfeile angedeutet ist, nach oben in das becherartige Gefäß 1 und schließlich durch das Rohrstück 11 hindurch ab. Hierdurch wird ein Geruchsverschluß bewirkt.If a pressure relief valve assigned to a hot water tank opens, causing water to flow out of its outlet pipe 4, a water jet 5 passes through the funnel-like insert 2 into the cup-like vessel 1 and flows down through the funnel nozzle 23 or between the funnel nozzle 23 and the pipe piece 3, as indicated by arrows in FIG. 2, upwards into the cup-like vessel 1 and finally through the pipe section 11. This causes an odor trap.

Aufgrund des hohen Druckes, mit welchem der Wasserstrahl 5 in den trichterartigen Einsatz 2 gelangt, muß sich zur Vermeidung von Spritzwasser der Trichterstutzen 23 genau unterhalb des Auslaufrohres 4 befinden. Um diese genaue Austrichtung des Trichterstutzens 23 gegenüber dem Auslaufrohr 4 zu ermöglichen, ist der Trichterstutzen 23 am trichterartigen Einsatz 2 exzentrisch angeordnet. Hierdurch kann durch Verdrehung des Einsatzes 2 der Trichterstutzen 23 quer zum Rohrstück 11 im Ausmaß der doppelten Exzentrizität verstellt werden, wodurch Ungenauigkeiten in der seitlichen Anordnung des Auslaßrohres 4 gegenüber dem wandseitigen Anschluß für das Abflußrohr ausgeglichen werden können. Der Abstand zum Abflußrohr kann durch die Länge des Rohrstückes 11 gewählt werden.Due to the high pressure with which the water jet 5 enters the funnel-like insert 2, the funnel nozzle 23 must be located exactly below the outlet pipe 4 in order to avoid splashing water. In order to enable this precise alignment of the funnel nozzle 23 with respect to the outlet pipe 4, the funnel nozzle 23 is arranged eccentrically on the funnel-like insert 2. As a result, by twisting the insert 2, the funnel connection piece 23 can extend transversely to the pipe section 11 the double eccentricity can be adjusted, whereby inaccuracies in the lateral arrangement of the outlet pipe 4 compared to the wall-side connection for the drain pipe can be compensated. The distance to the drain pipe can be chosen by the length of the pipe section 11.

Bei einem Ausführungsbeispiel wurde die Exzentrizität des Trichterstutzens 23 mit 10 mm gewählt, wodurch seitliche Abweichungen des Anschlusses an das Abflußrohr gegenüber dem Sicherheitsventil bis zu 20 mm ausgeglichen werden können, ohne daß hierdurch Nachteile bedingt werden.In one embodiment, the eccentricity of the funnel nozzle 23 was chosen to be 10 mm, as a result of which lateral deviations in the connection to the drain pipe compared to the safety valve can be compensated for by up to 20 mm, without any disadvantages being caused thereby.

Claims (3)

Überlauf-Armatur für ein Sicherheitsventil bestehend aus einem mit einem Ablaufrohr ausgebildeten becherartigen Gefäß, welches mit einem trichterartigen Einsatz und mit einem Geruchsverschluß in Form eines den trichterartigen Einsatz umgebenden und an seinem unteren Ende geschlossenen Rohr versehen ist, wobei der obere Rand des trichterartigen Einsatzes am oberen Rand des becherartigen Gefäßes befestigt ist, dadurch gekennzeichnet, daß die Achse des Trichterstutzens (23) gegenüber dem oberen Rand (21) des Einsatzes (2) exzentrisch angeordnet ist und daß der trichterartige Einsatz (2) gegenüber dem becherartigen Gefäß (1) verdrehbar ist.Overflow fitting for a safety valve consisting of a cup-like vessel formed with a drain pipe, which is provided with a funnel-like insert and with an odor trap in the form of a pipe surrounding the funnel-like insert and closed at its lower end, the upper edge of the funnel-like insert on is attached to the upper edge of the cup-like vessel, characterized in that the axis of the funnel nozzle (23) is arranged eccentrically with respect to the upper edge (21) of the insert (2) and in that the funnel-like insert (2) is rotatable with respect to the cup-like vessel (1) is. Überlauf-Armatur nach Patentanspruch 1, dadurch gekennzeichnet, daß der trichterartige Einsatz (2) an seinem oberen Rand mit einem nach unten abragenden zylindrischen Ansatz (21), welcher an der Innenwand des becherartigen Gefäßes (1) zur Anlage kommt, und mit einer ringförmigen Anschlagfläche (22), welche an den oberen Rand (12) des becherartigen Gefäßes (1) zur Anlage kommt, ausgebildet ist.Overflow fitting according to claim 1, characterized in that the funnel-like insert (2) at its upper edge with a downwardly projecting cylindrical projection (21) which comes into contact with the inner wall of the cup-like vessel (1) and with an annular Stop surface (22), which comes to rest on the upper edge (12) of the cup-like vessel (1), is formed. Überlauf-Armatur nach einem der Patentansprüche 1 und 2, dadurch gekennzeichnet, daß die Exzentrizität der Mittelachse des Trichterstutzens (23) 5 mm bis 15 mm, vorzugsweise 10 mm, beträgt.Overflow fitting according to one of claims 1 and 2, characterized in that the eccentricity of the central axis of the funnel nozzle (23) is 5 mm to 15 mm, preferably 10 mm.
EP94890179A 1993-11-19 1994-10-25 Overflow armature for safety valve Expired - Lifetime EP0654641B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0234693A AT403619B (en) 1993-11-19 1993-11-19 OVERFLOW FUNNEL FOR A SAFETY VALVE
AT2346/93 1993-11-19

Publications (3)

Publication Number Publication Date
EP0654641A2 true EP0654641A2 (en) 1995-05-24
EP0654641A3 EP0654641A3 (en) 1995-10-18
EP0654641B1 EP0654641B1 (en) 1997-06-04

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP94890179A Expired - Lifetime EP0654641B1 (en) 1993-11-19 1994-10-25 Overflow armature for safety valve

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EP (1) EP0654641B1 (en)
AT (2) AT403619B (en)
DE (1) DE59403009D1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2298661A (en) * 1995-03-06 1996-09-11 John Upton Water trap
WO2012093357A1 (en) * 2011-01-05 2012-07-12 Amphicom Investments Cc In-line water trap

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202016100854U1 (en) * 2016-02-18 2017-05-23 Uponor Innovation Ab safety device
DE102017111074A1 (en) * 2017-05-22 2018-11-22 Schell Gmbh & Co. Kg Device for the discharge of rinsing water arising during the flushing and / or thermal disinfection of pipelines in plumbing installations

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1166992B (en) * 1962-03-15 1964-04-02 Hansa Metallwerke Ag Safety group for high pressure hot water storage tank that can be connected to concealed pipes
FR2635174A1 (en) * 1988-08-05 1990-02-09 Dalphinet Raymond Device for connecting a stand-by water heating unit to an evacuation pipe

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT373003B (en) * 1982-07-15 1983-12-12 Hutterer & Lechner Kg DRIP FUNNEL CONNECTED TO THE WASTEWATER NETWORK FOR THE OVERFLOW OF HOT WATER TANKS AND THE LIKE

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1166992B (en) * 1962-03-15 1964-04-02 Hansa Metallwerke Ag Safety group for high pressure hot water storage tank that can be connected to concealed pipes
FR2635174A1 (en) * 1988-08-05 1990-02-09 Dalphinet Raymond Device for connecting a stand-by water heating unit to an evacuation pipe

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2298661A (en) * 1995-03-06 1996-09-11 John Upton Water trap
GB2298661B (en) * 1995-03-06 1999-07-21 John Upton Waste water outlet assembly for a shower tray
WO2012093357A1 (en) * 2011-01-05 2012-07-12 Amphicom Investments Cc In-line water trap
US8887753B2 (en) 2011-01-05 2014-11-18 Amphicom Investments Cc In-line water trap
AP3626A (en) * 2011-01-05 2016-03-03 Amphicom Invest Cc In-line water trap

Also Published As

Publication number Publication date
EP0654641B1 (en) 1997-06-04
EP0654641A3 (en) 1995-10-18
DE59403009D1 (en) 1997-07-10
ATE154118T1 (en) 1997-06-15
AT403619B (en) 1998-04-27
ATA234693A (en) 1997-08-15

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