Key information

Title: Outdoor faucet system
Application number: 20250005
Case type: National
Status: 10.08.2026 Patent meddelt (B1)
Filed: 03.01.2025
Effective date: 03.01.2025
Publicly available: 06.07.2026
Next annual fee due: 31.01.2028
Applicant: STUSDAL VVS AS (NO)
Owner: STUSDAL VVS AS (NO)
Inventor: Ole Fyllingsnes (NO) et al.
Agent: ACAPO ONSAGERS AS (NO)
Granted: 10.08.2026
Patent number: 350015
Expiry date: 03.01.2045

Abstract and drawing

Disclaimer: This text has been machine-scanned and may contain errors – please refer to "Publications" for legally binding content.

The invention relates to an outdoor faucet system (10) for preventing water damage in an outer wall (1) of a building, wherein the system (10) comprises: -an adapter (11) arranged to sealingly connect to an inner pipe connector (5.3) of a pipe-in-pipe plumbing system wall box (5), the adapter (11) has a valve seat (11.1), - a water pipe (12), arranged to extend through the wall (1), the water pipe (12) has in one end a wall mount flange (12.1) having a spout (12.2), in the opposite end the water pipe (12) is arranged to sealingly connect to the adapter piece (11), - a valve stem (13) arranged in the water pipe (12), the valve stem (13) is operable from the wall mount flange (12.1) and further comprises a valve member (13.1) arranged so that the valve member (13.1) moves in and out of sealingly engagement with the valve seat (11.1) when the valve stem (13) is operated, and - a wall box extender (14) arranged to surround the water pipe (12) and arranged to seal against the wall box (5) and to extend to the outside (3) of the wall (1). The invention also relates to a method for installing the outdoor faucet system (10).

Publications

Checking availability of the latest published version...

Documents

Expand

Download files (20)

Date

Date	Doc. No.	Process	Case number	In/Out	Journal description	To/from
16.08.2026	08-01	Saksbehandling	20250005(350015)	UT	PT Registreringsbrev nasjonal patent (15) (PT20250005)
29.04.2026	07-01	Saksbehandling	20250005	UT	PT Meddelelse om patent	ACAPO ONSAGERS AS
17.10.2025	06-08	Saksbehandling	20250005	INN	P41312NO00 Norske krav	ACAPO ONSAGERS AS
17.10.2025	06-07	Saksbehandling	20250005	INN	P41312NO00 Krav renskrevet	ACAPO ONSAGERS AS
17.10.2025	06-06	Saksbehandling	20250005	INN	P41312NO00 Krav annotert	ACAPO ONSAGERS AS
17.10.2025	06-05	Saksbehandling	20250005	INN	P41312NO00 Brev om utsatt meddelelse	ACAPO ONSAGERS AS
17.10.2025	06-04	Saksbehandling	20250005	INN	P41312NO00 Besvarelse	ACAPO ONSAGERS AS
17.10.2025	06-03	Saksbehandling	20250005	INN	P41312NO00 Beskrivelse renskrevet	ACAPO ONSAGERS AS
17.10.2025	06-02	Saksbehandling	20250005	INN	P41312NO00 Beskrivelse annotert	ACAPO ONSAGERS AS
17.10.2025	06-01	Saksbehandling	20250005	INN	Korrespondanse (Hovedbrev inn)	ACAPO ONSAGERS AS
22.04.2025	05-02	Saksbehandling	20250005	UT	PT report 11:03:37
22.04.2025	05-01	Saksbehandling	20250005	UT	Realitet patent	ACAPO AS
28.01.2025	04-03	Saksbehandling	20250005	INN	P21102NO00 Signert overdragelse	ACAPO AS
28.01.2025	04-02	Saksbehandling	20250005	INN	Generell fullmakt Stusdal VVS AS	ACAPO AS
28.01.2025	04-01	Saksbehandling	20250005	INN	Korrespondanse (Hovedbrev inn)	ACAPO AS
06.01.2025	03-01	Saksbehandling	20250005	UT	Formalia 1	ACAPO AS
06.01.2025	02-01	Saksbehandling	20250005	UT	Informasjon til oppfinner	Ole Fyllingsnes
03.01.2025	01-03	Saksbehandling	20250005	INN	P21102NO00 Figurer	ACAPO AS
03.01.2025	01-02	Saksbehandling	20250005	INN	P21002NO00 Søknadstekst	ACAPO AS
03.01.2025	01-01	Saksbehandling	20250005	INN	Søknadsskjema Patent	ACAPO AS

Description, claims and drawings

Disclaimer: This text has been machine-scanned and may contain errors – please refer to "Publications" for legally binding content.

Description

350015

TITLE: Outdoor faucet system

Field of the invention

The invention relates to an outdoor faucet system for preventing water damage in an outer wall of a building and a method for installing the outdoor 5 faucet system.

Background of the invention

In parts of the world experiencing low temperatures during winter it is common with insulated building such as houses and homes to reduce the amount of energy needed to maintain comfortable temperatures inside 10 during winter. An insulated building has outer walls that is more complex than a building that is not insulated. Outer walls of buildings in warm areas of the world can in many cases just be a layer of bricks or concrete covered with plaster, while an insulated building in Northern Europe such as Norway the outer walls are often wooden studwork with wooden cladding. Such 15 wooden studwork wall is in many cases insulated with rock wool or other suitable insulation material in between the studs. To prevent migration of moist from inside the house that can condensate inside the wall there is a vapor barrier in the outer wall on the inside relative to the insulation. It is also a wind barrier on the outside relative to the insulating layer to prevent 20 cold air to blow into the insulation. To reduce the thermal bridged in such walls resulting from the studs that is less thermal insulating a second layer of insulation is filled in between laths that is secured to the studwork or to boards on the studwork. On the inside the wall is often covered with building boards such as plasterboard.

Since insulated buildings is more complex, they are also more susceptible to water damage. Water that leaks into an insulated wall, floor or roof/ceiling does not dry straight away and can cause rot and or mold to develop. Also, it is more expensive to fix an insulated wall that is damaged by a water leak.

350015

Since both the probability and the consequences of water damaged in an insulated wooden building is higher the total risk of water damage in such a building is higher. Due to this it is in some country’s common with double walled plumbing, sometimes called pipe-in-pipe system. In for instance 5 Norway, it has been common to use pipe-in-pipe system since the late 90s.

Based on experience with leaks from traditional copper pipes, regulations were developed that applied to all new houses in Norway. The purpose of the regulation is to prevent water damage. The pipe-in-pipe system has been 10 developed to meet the criteria in this regulation and is today practically standard in all new residential buildings in Norway. There are only a few providers of pipe-in-pipe systems, and they are practically identical, since they have to be compatible to third party components such as faucets, showers, toilets etc.

A pip-in-pipe system has four main components: an inner water pipe, an outer pipe, wall boxes and a central distributor cabinet. The water flows through the inner water pipe, which is enclosed by the outer pipe. The wall boxes are connection points for faucets, showers, toilets, etc. Each wall box 20 is connected with pipe-in-pipe (an inner pipe enclosed by an outer pipe) to the central distribution cabinet so that any water leaks in the inner pipe is safely led away to the central distribution cabinet. The central distribution cabinet is placed in a room with a drain in the floor so leaking water entering the cabinet exits the cabinet onto the floor where it flows down in the drain.

Between the inner water pipe and the outer pipe there is an annulus. This annulus is terminated at the wall box and exits in the central distribution cabinet. The pipe-in-pipe system is for the most standardized including the wall boxes. The wall boxes are usually prepared for being nailed or screwed 30 to the side of a stud or lath inside the wall. The wall box has a standardized thread connection (usually a ½” female/internal threads connection) for connecting the faucets, showers, toilets or other water consumers.

350015

Surrounding this connection in the wall box is a circular collar extending about 3-7 cm out from the wall box.

After installation of the pipe-in-pipe system in a building the wall is closed off 5 usually by various types of building boards. The boards a perforated using hole saw or similar so that there is a hole that the collar of the wall box fits into. The collar of the wall box extends into the plate so that water taps, toilets etc., can be connected to the pipe-in-pipe system after all the walls are closed. Any leaks that may occur between the wall box and a water tap 10 will then be leaded into the room by the collar so that it is visible, and it cannot leak into the wall. Most taps, toilets etc. are also in room with a drain in the floor so any leaks outside the pipe-in-pipe system will usually find its way down in a drain on a floor.

15 The existing pipe in pipe systems have reduced and almost eliminated the possibility for hidden leaks from the water supply into walls, floors, and ceiling since all the hidden pipes is double walled. There is however one exception and that is with outdoor faucets. Connection of outdoor faucets to a pipe-in-pipe system is not done to a wall box. The outdoor faucet is

20 connected directly to the inner pipe of the pipe-in-pipe system and the outer pipe (or more precisely the annulus) is usually terminated using a rubber sleeve that seals around the inner pipe where the outer pipe ends.

The outdoor faucet is connected to the inner pipe after this sleeve. The pipe-25 in-pipe system is installed throughout the building on the inside of the insulation to avoid that the water freezes in the inner pipe. The valve of the faucet is located on the inside of the insulation and a pipe extends from the faucet valve to lead water to a spout on the outside of the building. The faucet valve can be operated from outside the building by operating a valve 30 stem that extend through the water pipe and has a handle on the outside of the building or the valve stem can be operated using a key.

350015

Such an outdoor faucet system is distinguished from other faucets in that the valve (valve seat and valve stem in combination) is arranged at a distance from the spout and the valve stem operator. The valve can then be arranged on the inside of the insulation while the spout is on the outside of the wall 5 and also the valve can be operated from the outside. This is to be able to close off water so that there is no water under pressure that can freeze during winter and cause water damage.

A water leak inside the wall can however occur if the valve is not closed 10 during winter. This can be the case if a garden hose on a hose reel is connected to the outdoor faucet. If a valve on the end of the garden hose is closed the owner/user will not realize that the valve of the outdoor faucet is still open and can accidentally leave it open during the winter.

15 The water pipe is often made of copper. Copper is an efficient conductor of heat, this lack of insulation through the copper water pipe can lead to a leak even if the faucet valve is closed and the valve is on the inside of the insulation. The water on the pressurized side of the faucet valve is cooled down so that it freezes and causes a leak in the valve or in the pressurized 20 water pipe. Since a prior art faucet system is not connected to the pipe-inpipe system via a wall box there is no second barrier that will prevent the leaking water from entering the inside of the wall or cause damage elsewhere.

25 Another issue with prior art outdoor faucets is that it condenses on the water pipe that extends between the valve and the spout through the wall. For instance, if the outdoor faucet is used for watering outdoor during the summer over a longer time period, the condense my cause water damage inside the wall. The water inside the pipe is colder than the surrounding air 30 and therefore there will be condensation on the pipe.

Replacement of an outdoor faucet can be needed. For instance, if the valve is leaking so it is constantly dripping. This can happen if the valve member is 350015

not able to seal against the valve seat. It can be that the valve seat is worn out. Replace the outdoor faucet will require to open up the wall, preferably on the inside since that is closes to where the valve is located. This causes a replacement job to be much more extensive than just the actual

5 replacement of the faucet system. Sometimes it is solved by having a hatch in the wall where it is possible to access the faucet system. It is however in most cases not desirable to have a hatch in the wall, at least it limits the places where it is suitable to install such outdoor faucets.

10 Prior art:

EP4056769A1 relates to a leak-safe water tap system to be arranged through a wall of a building.

EP1666674A2 relates to a regulating and shut-off armature and method 5 of 15 its final assembly.

NO20230761 relates to an outdoor faucet system for preventing water damage in an outer wall of a building with a wall box extender having a circular cross section.

20 Object of the invention

It is an object of the invention to provide a solution that prevents water damage in building walls from outdoor faucets.

It is another object to provide an outdoor faucet system that is easy to install 25 and/or to replace.

It is yet another object to provide a solution permitting extraction of a water pipe in a pipe-in-pipe system extending through a building wall.

30 It is further object to provide a solution reducing condense on the water pipe extending through a building wall from outdoor faucet.

350015

Another object is to provide a solution preventing leaking water from entering the inside of a building wall or cause damage elsewhere.

Summary of the invention

Throughout this document, “oval” means an area formed of parallelogram 5 with two areas, each with a half-circular or half-semicircular connected at two of the parallel and opposite sides of the parallelogram, wherein the parallelogram has four right angles.

Throughout this document, the “height” of the oval means the distance 10 between the two centers of the half-circular or half-semicircular areas of the oval.

The invention relates to an outdoor faucet system for preventing water damage in an outer wall of a building. The system comprises:

15 -a adapter arranged to sealingly connect to an inner pipe connector of a pipe-in-pipe plumbing system wall box, the adapter has a valve seat, - a water pipe, arranged to extend through the wall, the water pipe has in one end a wall mount flange having a spout, in the opposite end the water pipe is arranged to sealingly connect to the adapter piece, 20 - a valve stem arranged in the water pipe, the valve stem is operable from the wall mount flange and further comprises a valve member arranged so that the valve member moves in and out of sealingly engagement with the valve seat when the valve stem is operated, and - a wall box extender arranged to surround the water pipe and

25 arranged to seal against the wall box in a first end and to extend to the outside of the wall in a second end, opposite the first end, wherein a cross-section of the first end of the box extender is circular, and a cross-section of the second end of the box extender and a mid-section of the box extender between the first and second end of the box 30 extender are circular or oval..

The second end and the mid-section of the box extender having an oval cross-section provides a transition from the first end having a circular crosssection. To the mid-section of the wall box extender. The transition is

350015

forming an oval with a gradually increasing height from the circular first end to the mid-section and the wall box extender extends further with an oval cross-section of constant height.

5 The technical effect of the wall box extender is that it collects any leaking water from the water pipe and leads this water to the outside of the wall. In addition, it also collects any water that have condensed on the outside of the water pipe and leads it to the outside of the wall.

10 Having an oval cross-section of the wall box extender provides a larger access opening through the outer wall of the building, simplifying access and making extraction of parts of the faucet system extending through said wall easier and/or possible.

15 In embodiment, the wall box extender is insulated with an insulating material. Larger access opening allows room for insulating material to a greater extent. Insulating the wall box extender may thus reduce or prevent condense on the water pipe.

20 In embodiments, the wall box extender is flat or slightly sloped towards the outside of the wall. In embodiments, with an angle of 0-15° more preferred 0-10° and even more preferred 1-5°. This is to avoid water being trapped inside the wall box extender.

25 In embodiments, the water pipe is flat or slightly sloped towards the outside of the wall, so that water is drained out from the water pipe after the valve of the faucet is closed. In embodiments, with an angle of 0-15° more preferred 0-10° and even more preferred 1-5°.

30 The wall box extender is arranged to fit to any standard wall box. The wall box collar is usually connected to threads to the rest of the wall box.

Therefor the wall box collar can easily be removed and replaced with the wall box extender equipped with the same threads as the wall box collar. Alternatively, the wall box extender can comprise at least one gasket such 35 as an O-ring on the inside or on the outside and be sized so that it can be slided onto or into the wall box collar and seal against the wall box collar.

350015

In embodiments, the wall box extender is provided with an internal profile such as two grooves so that a special tool can be used to insert the wall box extender and screw it to fasten it to the wall box in case it is a threaded connection between the wall box extender and the wall box.

In embodiments, the wall box extender comprises a replaceable wall box extender adapter so that one that is suitable for the application and the exact type of wall box can be chosen.

10 In embodiments, the wall mount flange is screwed to the wall by two stainless steel screws. Alternatively, it is nailed or glued or fasten to the wall in other ways. It is the screws to the wall (or other means of fastening) that holds the water pipe in place and prevents it from being forced out of the adapter by the water pressure when the faucet valve is open.

In embodiments, the water pipe is a section of straight pipe.

In embodiments, the gasket is an O-ring. In embodiments, the gasket is two O-rings. In embodiments, the O-ring(s) is arranged in grooves inside the 20 adapter.

The gasket /O-rings secure a watertight connection between the adapter and the water pipe.

25 An additional advantage of the gasket or O-rings(s) is that it breaks the thermal bridge between the outside (via the water pipe) and the pressurized water inside the adapter that is upstream from the valve seat. It reduces the possibility that this water freezes.

30 In embodiments, the water pipe has a stinger section at the opposite end relative to the wall mount flange and that this stinger section is arranged to be pushed into the adapter so that it seals against an inner surface of the adapter.

35 In embodiments, the stinger is slightly tapering toward the end to facilitate the entering of the adapter without scratching the sealing inside surface of the adapter.

350015

In embodiments, the adapter is deep enough to compensate for thermal expansion and any seals/gaskets/O-rings can also be arranged so that the water pipe can move slightly in and out of the adapter to compensate for thermal expansion and the like. Also, the exact length of the water pipe is 5 not so critical when cutting it to a suitable length.

In embodiments, the adapter has an outer surface that fits in a socket wrench or other tool, so that a tool can be used to screw the adapter into the inner pipe connector of the wall box. This makes it possible to use an

10 extender between a suitable socket and a socket wrench so that the adapter can be connected or disconnected to the wall box from the outside of the building.

An advantage due to the adapter is that the system can be easily replaced. It 15 can then be replaced without having to open up the wall.

In embodiments, the water pipe comprises a weak pipe section arranged to burst before the rest of the water pipe in case of frost shattering.

20 In embodiments, the weak pipe section is either a section of the water pipe that has less wall thickness, a section made of a weaker material such as brass or a combination of these.

In embodiments, the wall mount flange comprises a drain hole arranged so 25 that water leaking into the wall box will exit the wall box extender through the drain hole.

In embodiments, the interface between the end of the wall box extender and the wall mount flange is sealed so that it is watertight. This can be done by 30 having a gasket in between them. Such a gasket can be secured to the wall mount flange. Alternatively, a sealing compound such as silicon is applied to the interface between the wall mount flange and the wall box extender.

In another aspect the invention relates to a method for installing the outdoor 35 faucet system. The method comprises the steps of:

- inserting the wall box extender into a precut hole in the outside of the wall and secure the wall box extender to a pre-installed wall box inside the wall,

350015

- inserting the adapter into the inner pipe connector of the wall box from the outside of the building using a matching elongated tool, - screwing the adapter to securing it to the inner pipe connector using said elongated tool from the outside of the building,

5 - cutting the water pipe and the valve stem to a length required for the water pipe and the valve stem to reach the adapter at the same time as the wall mount flange is in contact with the outside of the wall, - inserting the water pipe having the valve stem with the valve member inside the water pipe into the adapter, and

10 - securing the wall mount flange to the wall on the outside of the building.

Description of the drawings

Fig. 1 shows a prior art outdoor faucet system/kit.

15 Fig. 2 shows a valve stem with a valve member arranged to seals against a valve seat in an outdoor faucet system.

Fig. 3 shows a standard wall box for a pipe-in-pipe plumbing system (water supply plumbing).

Fig. 4 shows the wall box of fig.3 disassembled into its main components.

Fig. 5 shows schematically an embodiment of the outdoor faucet system according to the invention. The outdoor faucet system is in Fig.5 installed in 25 an typical outer wall of a building.

Fig. 6 shows the adapter piece from the outdoor faucet system in Fig. 5 in a closer view.

30 Fig. 7 shows the wall mount flange having a spout and a drain.

Fig. 8 shows an embodiment of a part of the wall box extender, wherein the cross section are changing from a circular to an oval form.

350015

Description of preferred embodiments of the invention

In the following embodiments of the invention will be described with reference to the drawings (Fig.1 – 7).

5 Fig. 1 shows a typical prior art outdoor faucet system 6. This is an example of one of the most common systems in place in houses today. Such a system 6 typically comprises a water pipe 6.1 made of copper or another metal. The water pipe 6.1 has a wall mount flange 6.4 in one end and in the other end it has a connector 6.8 with an internal faucet valve. The water pipe 10 6.1 is cut to a length that fits the thickness of the wall. Water exits the water pipe 6.1 in a spout 6.5 at the wall mount flange 6.4. The faucet is open and closed by screwing a valve stem operator 6.6 that is pushing on a springloaded valve stem 6.2 having a valve member 6.3. The valve member 6.3 is then moved in and out of sealing engagement with the valve seat of the 15 connector 6.8. The valve stem 6.2 and the valve member 6.3 is seen in Fig. 2. The valve stem operator 6.6 is in most cases a square bolt that can be rotated by a tool, or it can be operated using a valve stem operator key 6.7 as the one seen in Fig.1. By rotating the valve stem operator 6.6 the valve stem 6.2 can be moved in or out to open or close the valve.

Fig. 3 shows a standard wall box 5 for a pipe-in-pipe system. The wall box 5 comprises an inner pipe connection 5.3 surrounded by a wall box collar 5.1. The inner pipe connector 5.3 can be seen inside the wall box collar 5.1 in Fig. 3 or by itself in Fig.4 where the wall box 5 is disassembled. The outer 25 pipe of the pipe-in-pipe system is terminated in an outer pipe termination sleeve 5.2. The wall box 5 is secured to studs or lath1.1 inside the wall before closing the walls with building boards or similar. When the room is finished and the interior such as toilets, faucets, showers etc. is to be mounted it can easily be connected to water by connecting it to the inner 30 pipe connector 5.3. The wall box is covered up by building boards, but the wall box collar is protruding into the building board preferably more or less flush with the inside of the wall 1.

350015

In fig. 5 an embodiment of the outdoor faucet system 10 according to the invention is showed. In fig.5 it is installed in an outer wall 1 of a building. The system 10 comprises an adapter 11, a wall box extender 14, a valve stem 13 having a valve member 13.1 and a water pipe 12 having a wall 5 mount flange 12.1 with a spout 12.2 and an operation means 12.5 for operating a valve stem 13 by moving it axially inside the water pipe 12.

The adapter 11 can have threads 11.3 so that it is arranged to be screwed 10 into an inner pipe connector 5.3 of a wall box 5. The adapter 11 comprises a valve seat 11.1 and at least one gasket 11.2, preferably one or more O-rings on the inside. The adapter can have an outer surface like a hex screw head 11.4, so that a socket wrench can be used to screw it in and unscrew it.

15 The water pipe 12 is arranged to sealingly connect to the adapter 11.

Preferably the water pipe 12 is inserted into the adapter 11 where there is at least one O-rings 11.2 that seals against the water pipe 12. In the other end the water pipe 12 has the wall mount flange 12.1 with the spout 12.2. The wall mount is arranged to be fasten to the outside 3 of the wall preferably by 20 screws. With the wall mount flange 12.1 connected to the wall 1 the water pipe 12 is prevented from being pulled out off or off the adapter 11. The water pipe 12 further comprises the operator means 12.5 for operating a valve stem 13 to open and close for water.

25 The valve stem 13 is arranged inside the water pipe 12 and stretches from the operator means 12.5 and to the valve seat 11.1. The valve stem 13 has the valve member 13.1 that is arranged to open and close for water by being put in and out of sealingly engagement with the valve seat 11.1. The valve stem 13, with the valve member 13.1, can function and be operated in the 30 same way as for a prior art faucet system 6 such as the one described above with reference to Fig. 1 and 2.

350015

The wall box extender 14 is arranged to be connected to the wall box 5 in a first end 14.1 of the box extender, either by replacing the wall box collar 5.1 which for some pipe-in-pipe systems has a screw connection to the rest of the wall box 5, or connected to the wall box collar 5.1 as an extension. If it is 5 as an extension, it can comprise O-rings on the inside or outside and slid onto or inside the wall box collar 5.1. The wall box extender 14 is arranged to seal against the wall box 5 in the first end 14.1 and against the wall mount flange 12.1 in a second end 14.2.

10 The wall box extender 14 is in one embodiment having a constant circular cross section. In another embodiment, the first end 14.1 of the wall box extender 14 having a circular cross section and a mid-section 14.3 and second end 14.2 having an oval cross section. From the circular first end the wall box extender 14 is transforming to an oval-shaped cross-section with 15 gradually larger height until it holds a constant oval cross-section over a midsection 14.3 and the second end 14.2 of the wall box extender 14.

In one embodiment, the wall box extender 14 is insulated.

20 In addition, a moisture barrier sleeve 15 can be installed. This sleeve 15 is arranged to seal against the wall box extender 14 and the moisture barrier 1.3, so that air cannot flow through the penetrated moisture barrier 15 along the wall box extender 14.

25 The installation process for the system 10 can be as follows:

• Connect the adapter 11 and the wall box extender 14 to the wall box 5.

Fasten the wall box to the inner lath 1.1 of the wall 1 so that the wall box extender 14 extends from the wall box 5 and out through a precut circular hole in the outer wooden cladding 1.4.

The inside 2 of the wall can now be finished by closing it with plaster boards (for instance).

350015

• If the wall box extender extends out from the wall on the outside 3 cut the wall box extender so that it is flush with the outside 3 of the wall 1.

• Measure the depth from the outside 3 of the wall 1 and to the adapter 11.

Cut the water pipe 12 and the valve stem 13 to the required length.

5 • Insert the water pipe 12 with the valve stem 13 inside the water pipe 12 into the wall box extender 14. Push the water pipe 12 into the adapter 11 so that the O-ring(s) 11.2 are sealing against the water pipe 12.

• Fasten the wall mount flange 12.1 to the outside 3 of the wall 1 preferably using screws.

The inside of the wall mount flange 12.1 can have a gasket that is arranged to seal against the end of the wall box extender 14. Alternatively, a sealing compound such as silicon can be applied to the interface between the wall mount flange 12.1 and the wall box extender 14. It is however not essential 15 that the interface between the wall mount flange 12.1 and the end of the wall box extender 14 is watertight, since any leaks into the wall box extender 14 anyway will be lead to the outside 3 of the building.

Replacement of a leaking faucet valve can easily be done by following the 20 method below:

• Unscrewing the screws that holds the wall mount flange 12.1.

• Pulling out the water pipe 12 with the valve stem 13 and the valve member 13.1.

• Unscrew and remove the adapter 11 using a suitable hex key with an 25 extension and a spanner or a specially adapted tool made for reaching the adapter from the outside 3 and for screwing out the adapter 11.

• Insert and fasten the adapter 11 of the replacement faucet system 10 using the same tool as in the previous step.

• Insert the water pipe 12 having the valve stem 13 with the replacement 30 valve member 13.1 into the wall box extender 14 and push it into the adapter 11. (If desirable, the same water pipe can be re-used) • Fasten the wall mount flange 12.1 to the outside of the wall 1.

350015

Fig. 7 shows the wall mount flange 12.1 having a spout 12.2 and a drain 12.4. The wall mount flange 12.1 is having a circular shape to correspond to embodiment wherein the wall box extender 14 is having a constant circular cross section. In the other embodiment, wherein the wall box extender 14 is 5 having a circular cross section in the first end 14.1 and an oval cross section in the mid-section 14.3 and the second end 14.2, the wall mount flange 14.1 has a cross section corresponding to the oval cross section of the midsection 14.3 and second end 14.2, that is an oval cross-section (not shown).

10 Fig. 8 shows the transition between the first end 14.1 and the oval cross section of the mid-section 14.3 and second end 14.2 of the wall box extender 14.

350015

Table 1

Ref. Description

1 Outer wall (of a building)

1.1 Lath

1.2 Wind barrier (in the wall)

1.3 Moisture barrier (in the wall)

1.4 Cladding on the wall

1.5 Insulation (in the wall such as rock wool)

2 Inside the building

3 Outside the building

4 Inner pipe of pipe-in-pipe system

5 Wall box (double pipe plumbing system wall box)

5.1 Wall box collar

5.2 Outer pipe termination sleeve

5.3 Inner pipe connector

6 Prior art outdoor faucet system

6.1 Water pipe (of prior art faucet system)

6.2 Valve stem (of prior art faucet system)

6.3 Valve member (of prior art faucet system)

6.4 Wall mount flange (of prior art faucet system)

6.5 Spout (of prior art faucet system)

6.6 Valve stem operator (of prior art faucet system)

6.7 Valve stem operator key (of prior art faucet system)

6.8 Connector (with an internal valve seat (of prior art faucet system)) 10 Outdoor faucet system

11 Adapter

11.1 Valve seat

11.2 Gasket (such as O-ring)

11.3 Threads

11.4 Hex screw head (or similar to hex)

350015

12 Water pipe

12.1 Wall mount flange

12.2 Spout

12.3 Weak pipe section (can be made of brass for instance)

12.4 Drain hole (for letting out water that have leaked into the wall box extender)

12.5 Operation means (for operating the valve stem 13. i.e., moving it in and out to move the valve member 13.1 in and out of sealing engagement with the valve seat 11.1)

13 Valve stem

13.1 Valve member

The valve seat 11.1 and the valve member 13.1 in combination constitutes the faucet valve or the valve of the faucet.

For the prior art system, it is the valve seat of the connector 6.8 and the valve member 6.3 that constitutes the faucet valve or the valve of the faucet.

14 Wall box extender

14.1 First end (of wall box extender 14)

14.2 Second end (of wall box extender 14)

14.3 Mid-section (of wall box extender 14)

15 Moisture barrier sleeve

Claims

350015

Claims

1. An outdoor faucet system (10) for preventing water damage in an outer wall (1) of a building, wherein the system (10) comprises:

5 -an adapter (11) arranged to sealingly connect to an inner pipe connector (5.3) of a pipe-in-pipe plumbing system wall box (5), the adapter (11) has a valve seat (11.1),

- a water pipe (12), arranged to extend through the wall (1), the water pipe (12) has in one end a wall mount flange (12.1) having a spout 10 (12.2), in the opposite end the water pipe (12) is arranged to sealingly connect to the adapter (11),

- a valve stem (13) arranged in the water pipe (12), the valve stem (13) is operable from the wall mount flange (12.1) and further comprises a valve member (13.1) arranged so that the valve member 15 (13.1) moves in and out of sealingly engagement with the valve seat (11.1) when the valve stem (13) is operated, and

- a wall box extender (14) arranged to surround the water pipe (12) and arranged to seal against the wall box (5) in a first end (14.1) and to extend to the outside (3) of the wall (1) in a second end (14.2), 20 opposite the first end (14.1), wherein a cross-section of the first end (14.1) of the box extender (14) is circular, and a cross-section of the second end (14.2) of the box extender (14) and a mid-section (14.3) of the box extender (14) between the first (14.1) and second end (14.2) of the box extender (14) is oval.

2. The outdoor faucet system (10) according to claim 1, wherein the wall box extender (14) is insulated.

3. The outdoor faucet system (10) according to claim 1 or 2, wherein the 30 water pipe (12) has a stinger section in an opposite end relative to the wall mount flange (12.1) and that this stinger section is arranged to be pushed into the adapter (11) so that it seals against an inner surface of the adapter

350015

4. The outdoor faucet system (10) according to any preceding claim, wherein the water pipe (12) comprises a weak pipe section (12.3) arranged to burst before the rest of the water pipe in case of frost shattering.

5 5. The outdoor faucet system (10) according to any preceding claims, wherein the wall mount flange (12.1) comprises a drain hole (12.4) arranged so that water leaking into the wall box extender (14) will exit through the drain hole (12.4).

10 6. The outdoor faucet system (10) according to any preceding claims, wherein the adapter (11) comprises a gasket (11.2) on an inside arranged to seal against the water pipe (12) when inserted into the adapter (11).

7. A method for installing the outdoor faucet system (10) according to any of 15 the claims 1-6, wherein the method comprises the steps of:

- inserting the wall box extender (14) into a precut hole in the outside (3) of the wall (1) and secure the wall box extender (14) to a preinstalled wall box (5) inside the wall (1)

- inserting the adapter (11) into the inner pipe connector (5.3) of the 20 wall box (5) from the outside (3) of the building using a matching elongated tool,

- screwing the adapter (11) to secure it to the inner pipe connector (5.3) using said elongated tool from the outside (3) of the building, - cutting the water pipe (12) and the valve stem (13) to a length 25 required for the water pipe and the valve stem to reach the adapter (11) at the same time as the wall mount flange is in contact with the outside (3) of the wall (1),

- inserting the water pipe (12) having the valve stem (13) with the valve member (13.1) inside the water pipe (12) into the adapter (11), 30 and

- securing the wall mount flange (12.1) to the wall (1) on the outside (3) of the building.

350015

Patentkrav

1. Et utekransystem (10) for å hindre vannskader i en yttervegg (1) av en bygning, hvori systemet (10) omfatter:

5 -en adapter (11) anordnet for tettende å koble til en indre rørkopling (5.3) i en rør-i-rør-system veggboks (5), hvor adapteren (11) har et ventilsete (11.1),

- et vannrør (12) anordnet for å strekke seg gjennom veggen (1), hvor vannrøret (12) har i en ende en veggmonteringsflens (12.1) som har 10 en tut (12.2), i motsatt ende er vannrøret (12) anordnet for tettende å koble til adapteren (11),

- en ventilspindel (13) anordnet inne i vannrøret (12), hvor ventilspindelen (13) kan betjenes fra veggmonteringsflensen (12.1) og videre omfatte et ventilelement (13.1) anordnet slik at ventilelementet 15 (13.1) beveges inn og ut av tettende inngrep med ventilsetet (11.1) når ventilspindelen (13) betjenes, og

- en veggboksforlenger (14) anordnet for å omslutte vannrøret (12) og anordnet for å tette mot veggboksen (5) i en første ende (14.1) og for å strekke seg til utsiden (3) av veggen (1) i en andre ende (14.2), 20 motsatt den første enden (14.1), hvori et tverrsnitt av den første enden (14.1) av veggboksforlengeren (14) er sirkulær, og hvor et tverrsnitt av den andre enden (14.2) av veggboksforlengeren (14) og en midtseksjon (14.3) av veggboksforlengeren (14) mellom den første (14.1) og den andre enden (14.2) av veggboksforlengeren (14) er 25 oval.

2. Utekransystemet (10) ifølge krav 1, hvori veggboksforlengeren (14) er isolert.

30 3. Utekransystemet (10) ifølge krav 1 eller 2, hvori vannrøret (12) har en stinger-seksjon i en motsatt ende i forhold til veggmonteringsflensen (12.1) og at denne stinger-seksjonen er anordnet for å skyves inn i adapteren (11) slik at den tetter mot en indre overflate av adapteren (11).

350015

4. Utekransystemet (10) ifølge ett hvilket som helst av de foregående kravene, hvori vannrøret (12) omfatter en svak rørseksjon (12.3) anordnet for å briste før resten av vannrøret (12) i tilfelle frostsprengning.

5 5. Utekransystemet (10) ifølge ett hvilket som helst av de foregående kravene, hvori veggmonteringsflensen (12.1) omfatter et dreneringshull (12.4) anordnet slik at vann som lekker inn i veggboksforlengeren (14) vil komme ut gjennom dreneringshullet (12.4).

10 6. Utekransystemet (10) ifølge ett hvilket som helst av de foregående kravene, hvori adapteren (11) omfatter en tetning (11.2) på en innside anordnet for å tette mot vannrøret (12) når det er satt inn i adapteren (11).

7. En fremgangsmåte for å installere utekransystemet (10) ifølge hvilket som 15 helst av kravene 1-6, hvori fremgangsmåten omfatter stegene å:

- føre veggboksforlengeren (14) inn gjennom et forhåndskuttet hull på utsiden (3) av veggen (1) og feste veggboksforlengeren (14) til en forhåndsinstallert veggboks (5) inne i veggen (1),

- føre adapteren (11) inn i den indre rørkoblingen (5.3) til veggboksen 20 (5) fra utsiden (3) av bygningen ved å bruke et passende langstrakt verktøy,

- skru adapteren (11) for å feste den til den indre rørkoblingen (5.3) ved å bruke nevnte langstrakte verktøy fra utsiden (3) av bygningen, - kutte vannrøret (12) og ventilspindelen (13) til en lengde som er 25 nødvendig for at vannrøret og ventilspindelen skal rekke adapteren (11) samtidig som veggmonteringsflensen er i kontakt med utsiden (3) av veggen (1),

- føre vannrøret (12) som har ventilspindelen (13) og ventillegemet (13.1) inne i vannrøret inn i adapteren (11), og

30 - sikre veggmonteringsflensen (12.1) til veggen (1) på utsiden (3) av bygningen.

Drawings

Priority

No priority

Patent classes

IPC classes

E03B 9/02

CPC classes

E03B 9/025

Citations

NO 20230761 A1 (A1)

Applicants, owners and inventors

Owners

STUSDAL VVS AS

Heltveitvegen 19

5993 OSTEREIDET