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Sommaire du brevet 2957689 

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Disponibilité de l'Abrégé et des Revendications

L'apparition de différences dans le texte et l'image des Revendications et de l'Abrégé dépend du moment auquel le document est publié. Les textes des Revendications et de l'Abrégé sont affichés :

  • lorsque la demande peut être examinée par le public;
  • lorsque le brevet est émis (délivrance).
(12) Demande de brevet: (11) CA 2957689
(54) Titre français: DISPOSITIF DE PROTECTION
(54) Titre anglais: PROTECTION DEVICE
Statut: Réputée abandonnée et au-delà du délai pour le rétablissement - en attente de la réponse à l’avis de communication rejetée
Données bibliographiques
(51) Classification internationale des brevets (CIB):
  • E3C 1/10 (2006.01)
  • E3D 9/00 (2006.01)
  • F16K 24/02 (2006.01)
(72) Inventeurs :
  • BARTENSTEIN, PAUL (Allemagne)
  • TALONPOIKA, ISMO (Finlande)
(73) Titulaires :
  • UPONOR INNOVATION AB
(71) Demandeurs :
  • UPONOR INNOVATION AB (Suède)
(74) Agent: OYEN WIGGS GREEN & MUTALA LLP
(74) Co-agent:
(45) Délivré:
(22) Date de dépôt: 2017-02-09
(41) Mise à la disponibilité du public: 2017-08-18
Licence disponible: S.O.
Cédé au domaine public: S.O.
(25) Langue des documents déposés: Anglais

Traité de coopération en matière de brevets (PCT): Non

(30) Données de priorité de la demande:
Numéro de la demande Pays / territoire Date
202016100854.9 (Allemagne) 2016-02-18

Abrégés

Abrégé anglais


The invention relates to a protection device (SE) for
protecting the potable water from contamination caused by
backflow, comprising a housing (G) with a potable water inlet
(TWZ), a first funnel (EKT), which is arranged at a distance to
and aligned below the potable water inlet (TWZ), and a second
funnel (ZKT), which is arranged at a distance to and aligned
below the first conical funnel (EKT), and via which the water
can be drained. An opening (OE) in the housing (G) is formed
for the discharge of the backflowing water, to which the back-
flowing water can flow between the first (EKT) and the second
funnel (ZKT).

Revendications

Note : Les revendications sont présentées dans la langue officielle dans laquelle elles ont été soumises.


- 12 -
Claims
1. Protection device (SE) for protecting the potable water
from contamination caused by backflow, comprising:
- a housing (G) with
- a potable water inlet (TWZ),
- a first funnel (EKT), which is arranged at a distance
to and aligned below the potable water inlet (TWZ),
- a second funnel (ZKT), which is arranged at a
distance to and aligned below the first conical funnel
(EKT), and via which the water can be drained,
- wherein an opening (OE) in the housing (G) is formed
for the discharge of the backflowing water, to which the
back-flowing water can flow between the first (EKT) and
the second funnel (ZKT).
2. Protection device (SE) according to claim 1,
characterized in that the first and the second funnel are
designed conically and the second conical funnel (ZKT) is
part of a siphon.
3. Protection device (SE) according to claim 2,
characterized in that
the second conical funnel is surrounded by a siphon socket
(SSN), which acts as a siphon together with the second
conical funnel (ZKT).
4. Protection device (SE) according to one of claims 1 to 3,
characterized in that
the housing is formed of a cover (DL) and a lower part
(UT) and the first conical funnel (EKT) is received in the

- 13 -
cover (DL) and the second conical funnel (ZKT) is received
in the lower part (UT).
5. Protection device (SE) according to one of claims 1 to 4,
characterized in that
a flow regulator (SR) is installed in the potable water
inlet (TWZ).
6. Protection device (SE) according to one of claims 4 or 5,
characterized in that
sensor elements (SE) for detecting an overflow situation
and for closing the water inlet are installed in the cover
(DL).
7. Protection device (SE) according to one of claims 1 to 6,
characterized in that
lugs (LD) are installed between the potable water inlet
(TWZ) and the first conical funnel (EKT).
8. Protection device (SE) according to one of claims 1 to 7,
characterized in that
lugs (L) are arranged between the first conical funnel
(EKT) and the second conical funnel (ZKT).
9. Protection device (SE) according to one of claims 1 to 8,
characterized in that
the flow regulator (SR) is produced from material suitable
for potable water, such as PPSU, and the remainder of the
protection device is produced from material not suitable
for potable water, such as ABS.

- 14 -
10. Protection device (SE) according to one of claims 1 to 9,
characterized in that
it is configured as part of a flushing station.
11. Protection device (SE) according to one of claims 1 to 10,
characterized in that
it is installable in a flowing station behind a pre-wall
and is completely dismountable through an inspection
opening.

Description

Note : Les descriptions sont présentées dans la langue officielle dans laquelle elles ont été soumises.


ak 02957689 2017-02-09
- 1 -
PROTECTION DEVICE
Description
The invention relates to a protection device for protecting the
potable water from contamination caused by back-flow.
In various applications, protection devices are required for
protecting the potable water from contamination caused by a
back-flow. One exemplary case is a flushing station, for
example, which ensures that water will not stand for more than
72 hours in a certain water strand and initiates the flushing
process automatically after exceeding this time limit.
In this case, it is to be ensured that the draining water will
not get into contact with the newly inflowing potable water.
According to the EN 1717 standard, it is not permitted that
that drained wastewater gets into contact with newly inflowing
drinking water. Wastewater is to be assigned to category 5 as
being harmful according to the EN 1717 standard. Category 5
liquids must be protected with protection devices of the AA-,
AB- or AC- type. A product standard for the AA-type is DIN EN
13076, for example.
Thus, the object underlying the invention is to propose a
protection device for protecting the potable water from
contamination caused by backflow, which complies with the
German industrial standards DIN EN 130 76 as well as DIN EN
1717.

ak 02957689 2017-02-09
- 2 -
Moreover, the protection device should also fulfill the W540
test standard of the DVGW (German: Deutscher Verein far Gas und
Wasser).
According to the invention, this object is achieved by a
protection device for protecting the potable water from
contamination caused by backflow, comprising a housing with a
potable water inlet, a first funnel, which is arranged at a
distance to and aligned below the potable water inlet, a second
funnel, which is arranged at a distance to and aligned with the
first funnel and via which the water can be drained, wherein an
opening is formed in the housing for the exit of the back-
flowing water, to which the backflowing water can flow between
the first and the second funnel.
The configuration of the protection device having the two
series-connected funnels ensures that water will not sprinkle
back to the potable water inlet even under test conditions, but
the back-sprinkling water is drained via the space between the
first and the second funnel to the opening in the housing.
Preferably, the two series-connected funnels are formed as
conical funnels. Conical as defined by the invention means that
the wall of the funnel extends in a straight conical manner, or
in bulged conical manner as shown in the following exemplary
embodiments.
According to the above-mentioned standards, in particular EN
13076, it is required that the drain is closed and potable
water is guided to the closed drain at a flow pressure of 10
bar. This results in a water level in the second conical

ak 02957689 2017-02-09
- 3 -
funnel, via which normally the water can be drained, and the
water supplied with a flow pressure of 10 bar causes a backflow
when hitting the water level. This backflow hits laterally
against the lower side of the first conical funnel and is
guided to the opening through the gap between the first and
second conical funnels.
According to a preferred embodiment, the second conical funnel
is part of a siphon. Preferably, the second conical part is
surrounded by a siphon socket, so that the draining water can
rise at the outer side of the second conical part and can be
drained again via the siphon socket.
According to another preferred embodiment, the housing is
formed of a cover and a lower part, wherein the first conical
funnel is releasably received in the cover and the second
conical funnel is releasably received in the lower part. The
separated design of the housing and the detachable installation
of the first conical funnel as well as of the second conical
funnel allows maintenance of the protection device, e.g. in the
case of calcification.
According to another preferred embodiment, a flow regulator is
installed in the potable water inlet. The flow regular allows
targeted guidance of the supplied water and, in particular, a
flow volume regulator, such as a Neoperl, can be installed in
the flow regulator, in order to obtain a uniformly defined
water jet.
Furthermore, it is favorable that sensors for detecting an
overflow situation and for closing the water inlet are

ak 02957689 2017-02-09
- 4 -
installed in the cover. The protection device according to the
invention is usually installed behind a front wall, and the
sensors allow for preventing an overflow situation and a
flooding behind the front wall if the drain is clogged, since a
signal for blocking the water inlet can be output immediately
by the sensor elements. This prevents extensive renovation
works due to the overflowing water.
For normal operation, it is favorable if lugs for water
guidance are installed between the potable water inlet and the
first conical funnel as well as between the first conical
funnel and in the second conical funnel, which protect the
potable water inlet from back-sprinkling water and guide the
back-flowing water toward the opening.
Furthermore, it is favorable that the flow regulator is
produced from material suitable for potable water, e.g.
polyphenylene sulfone (PPSU), and the remainder is produced
from a plastic not suitable for potable water, such as ABS
(Acrylonitrile butadiene styrene).
Further advantages of the invention are disclosed in the sub
claims as well as in the following description of figures.
The figures show in:
Figure 1 schematically a bathroom with a flushing
station,
Figure 2 the flushing station according to Figure 1 in an
enlarged view,

ak 02957689 2017-02-09
- 5 -
Figure 3 the protection device in an inclined/oblique
view,
Figures 4 and 5 the protection device in an inclined view and
exploded view,
Figure 6 the protection device in a sectional view from
the front,
Figure 7 the protection device in a lateral sectional
view, and
Figure 8 the protection device in an oblique/inclined
sectional view.
In the following, elements having the same construction and
function are indicated with the same reference numerals and
will not be repeatedly explained separately.
Figure 1 schematically shows a bathroom, in which all consumers
are connected via a so-called ring-pipe system. A cold water
rising pipe KSL and a hot water rising pipe WSL are laid
vertically across the floors. In each case one cold water pipe
KWL and one hot water pipe WWL is connected to this cold water
rising pipe KSL and hot water rising pipe WSL, which leads to
the respective consumers. In the illustrated exemplary
embodiment, first a valve V is provided in the cold-water pipe
KWL, and a flushing tank SK of a toilet WC is connected
downstream thereof. Downstream thereof, the cold water pipe KWL
leads to a mixer faucet MA of a shower D. At this mixer faucet

ak 02957689 2017-02-09
- 6 -
MA, the cold-water pipe KWL is looped-through and leads further
to a flushing station SS and, afterwards, further to the cold-
water port of a wash basin WB. Just as well, at the cold-water
port, the cold-water pipe KWL is looped-through and goes
further to further consumers on the floor, which are not
illustrated in Fig. 1. The hot water pipe WWL is not connected
to the flushing tank SK of the toilet, but also connected via a
series-pipe to the mixer faucet MA of the shower D, the
flushing station SS as well as the wash basin WB as well as
further consumers on the floor.
The above-mentioned so-called ring-pipe installation of the
consumers in the hot and cold water pipe ensures that the water
is moved through all of the other consumers connected upstream
the water tab when opening the tab at the wash basin WB, and
thus, pipe sections in which water could be standing for a
longer period of time are prevented, although certain consumers
have been served.
In particular, the risk lies with the fact that the legionella
will be forming when water stands for a longer period of time.
To not leave to chance the exchange of water, the flushing
station SS is integrated in the water circuit.
Figure 2 shows the flushing station in an enlarged view. The
hot water pipe WWL as well as the cold water pipe KWL are
connected to the flushing station SS via so-called loop-
fittings DSL, the third branch of the loop fittings DSF leading
to a protection device SE. Electrically actuatable valves EV
are integrated in the third branch of the loop fittings DSF,
the valves being controlled via a sensor S and opening the

ak 02957689 2017-02-09
- 7 -
valves briefly, e.g. after 72 hours, so that approximately 3
liters of water flow into the protection device SE and are
drained from the protection device via a drain AF.
The flushing station SS thereby ensures the constant
availability of fresh water in the cold water pipe KWL and the
hot water pipe WWL and prevents the formation of legionella or
other harmful substances.
The protection device SE is illustrated in an oblique view in
Figures 3 to 5, Figures 4 and 5 each showing the protection
device SE in an exploded view. The protection device SE
comprises a housing G, which is formed by a cover DL and a
lower part UT. A potable water inlet TWZ is provided in the
cover DL at the upper side thereof, and a siphon socket SSN is
provided at the lower part UT, which can be plugged into the
drain pipe AF (see Figure 2) and through which the water can be
drained.
As illustrated in Figures 4 and 5, a fist conical funnel EKT
and a second conical funnel ZKT is received in the housing G
which is formed of cover DL and lower part UT, wherein the
first conical funnel EKT is arranged at a distance to and
aligned below the potable water inlet TWZ, and the second
conical funnel ZKT is arranged at a distance to and aligned
below the first conical funnel EKT. The arrangement and
mounting of the first conical funnel EKT and of the second
conical funnel ZKT is shown in Figures 6 to 8 and the effect of
the two conical funnels is explained in greater detail in
conjunction with Figures 6 to 8.

ak 02957689 2017-02-09
- 8 -
Furthermore, sensor elements SE are received in the cover part
DL, the elements detecting whether water stands in the lower
part UT and automatically output a signal to the electric
valves EV, which stop the supply of water to prevent an
overflow situation. Lateral openings OE are provided in the
housing G in the cover part DL, which enable the backflowing
water to be drained when the drain AF is clogged (and the
sensor elements S or electric valves EV fail).
A so-called flow regulator SR is integrated in the potable
water inlet, which ensures that a defined water jet is formed.
A flow volume regulator can be received in the flow regulator,
e.g. a Neoperl.
The flow regulator is formed of a material suitable for potable
water, such as PPSU. The remainder of the protection device SE
is preferably formed of a material not suitable for potable
water, such as the synthetic material ABS. This enables a
cheaper production of the protection device, since ABS is
significantly cheaper than material suitable for potable water,
and only the flow regulator SR gets into contact with the
potable water.
The functioning of the protection device SE as well as the
structure thereof is explained in greater detail by means of
Figures 6 to 8. The first conical funnel EKT is installed, with
its upper edge, at a distance al to the lower edge of the flow
regulator SR in the protection device SE. The second conical
funnel ZKT is installed at a distance a2 between its upper edge
and the lower edge of the first conical funnel EKT in the
protection device. According to the test regulations, at 10 bar

ak 02957689 2017-02-09
- 9 -
water pressure and the drain AF closed, it is not permitted for
water standing in the second conical funnel ZKT to sprinkle to
the potable water inlet TWZ or the lower edge of the flow
regulator SR. This is specified by the DIN standards EN 13076,
EN 1717 and even by the test standard W540 of the DVGW (German:
Deutscher Verein far Gas und Wasser). To ensure that, the
supplied water (illustrated by an arrow within the flow
regulator SR) is routed through the flow regulator SR into the
first conical funnel EKT, which is arranged at the distance al
to and aligned below the flow regulator SR, before hitting the
water surface of the water standing in the second conical
funnel ZKT. The distance al is dimensioned in accordance with
DIN 13076. The water sprinkling back by the incoming water jet
is drained to the outside through the first conical funnel EKT,
which is arranged at the distance a2 above the second conical
funnel EKT, via the outer wall of the first conical funnel and
may be drained (schematically illustrated by the two arrows in
Fig. 6) through openings OE in the housing G.
If an overflow situation arises, the sensor elements SE will
react and stop the inflow of water in the flushing station SS
via the electric valves EV, see Figure 2.
Figure 7 shows the illustration of Figure 6 in a sectional view
rotated by 90 . Figure 8 shows the view according to Figure 7
in a slightly pivoted form. Lugs L are formed between the first
conical funnel EKT and the second conical funnel ZKT, which, as
illustrated in Figures 6 and 7, but run in parallel to one
another only on two sides. Lugs L will route the back-flowing
or back-sprinkling water back to the lower side of the first
conical funnel EKT, namely in the region where the openings OE

ak 02957689 2017-02-09
- 10 -
are formed in the cover part DL. Thus, the lugs L route the
back-sprinkling water to the openings OE.
Lugs LD are also formed between the cover part DL and the first
conical funnel EKT. These lugs are arranged over the surface
within the openings OE and offset inwards and extend all the
way to the edge of the first conical funnel EKT. The lugs LD
are formed in a semi-circular manner and corresponding to the
DIN 13076 spaced from the potable water inlet TWZ standard at
least by the dimension 2 times al. In an overflow situation,
the lugs LD prevent that the water drained through the openings
OE can sprinkle back to the potable water inlet TWZ in
particular of the lower side of the flow regulator SR. In
normal operation, the lugs LD also prevent the water from
sprinkling to the outside through the openings OE.
The invention is not limited to the illustrated embodiment, in
particular, the invention may be used in other applications
such as a flushing station.

ak 02957689 2017-02-09
- 11 -
List of reference numerals
KSL cold water rising pipe
WSL hot water rising pipe
V valve
SK flushing tank
WC toilet
KWL cold water pipe
WWL hot water pipe
MA mixer faucet
= shower
SS flushing station
WB wash basin
= sensor
EV electric valve
DSF loop fitting
SE protection device
AF drain
TWZ potable water inlet
DL cover
UT lower part
SSN siphon socket
EKT first conical funnel
ZKT second conical funnel
SR flow regulator
LD lug cover part
= lug second conical funnel
al distance flow regulator - first conical funnel
a2 distance first conical funnel - second conical funnel

Dessin représentatif
Une figure unique qui représente un dessin illustrant l'invention.
États administratifs

2024-08-01 : Dans le cadre de la transition vers les Brevets de nouvelle génération (BNG), la base de données sur les brevets canadiens (BDBC) contient désormais un Historique d'événement plus détaillé, qui reproduit le Journal des événements de notre nouvelle solution interne.

Veuillez noter que les événements débutant par « Inactive : » se réfèrent à des événements qui ne sont plus utilisés dans notre nouvelle solution interne.

Pour une meilleure compréhension de l'état de la demande ou brevet qui figure sur cette page, la rubrique Mise en garde , et les descriptions de Brevet , Historique d'événement , Taxes périodiques et Historique des paiements devraient être consultées.

Historique d'événement

Description Date
Demande non rétablie avant l'échéance 2023-05-09
Inactive : Morte - RE jamais faite 2023-05-09
Lettre envoyée 2023-02-09
Réputée abandonnée - omission de répondre à un avis relatif à une requête d'examen 2022-05-09
Lettre envoyée 2022-02-09
Représentant commun nommé 2020-11-07
Représentant commun nommé 2019-10-30
Représentant commun nommé 2019-10-30
Lettre envoyée 2019-03-01
Requête visant le maintien en état reçue 2019-02-19
Exigences de rétablissement - réputé conforme pour tous les motifs d'abandon 2019-02-19
Réputée abandonnée - omission de répondre à un avis sur les taxes pour le maintien en état 2019-02-11
Demande publiée (accessible au public) 2017-08-18
Inactive : Page couverture publiée 2017-08-17
Inactive : CIB attribuée 2017-06-16
Inactive : CIB en 1re position 2017-06-16
Lettre envoyée 2017-05-16
Inactive : Transfert individuel 2017-05-05
Inactive : CIB attribuée 2017-04-25
Inactive : CIB attribuée 2017-04-25
Inactive : Certificat dépôt - Aucune RE (bilingue) 2017-02-20
Demande reçue - nationale ordinaire 2017-02-14

Historique d'abandonnement

Date d'abandonnement Raison Date de rétablissement
2022-05-09
2019-02-11

Taxes périodiques

Le dernier paiement a été reçu le 2022-01-31

Avis : Si le paiement en totalité n'a pas été reçu au plus tard à la date indiquée, une taxe supplémentaire peut être imposée, soit une des taxes suivantes :

  • taxe de rétablissement ;
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  • taxe additionnelle pour le renversement d'une péremption réputée.

Les taxes sur les brevets sont ajustées au 1er janvier de chaque année. Les montants ci-dessus sont les montants actuels s'ils sont reçus au plus tard le 31 décembre de l'année en cours.
Veuillez vous référer à la page web des taxes sur les brevets de l'OPIC pour voir tous les montants actuels des taxes.

Historique des taxes

Type de taxes Anniversaire Échéance Date payée
Taxe pour le dépôt - générale 2017-02-09
Enregistrement d'un document 2017-05-05
Rétablissement 2019-02-19
TM (demande, 2e anniv.) - générale 02 2019-02-11 2019-02-19
TM (demande, 3e anniv.) - générale 03 2020-02-10 2020-01-27
TM (demande, 4e anniv.) - générale 04 2021-02-09 2021-02-01
TM (demande, 5e anniv.) - générale 05 2022-02-09 2022-01-31
Titulaires au dossier

Les titulaires actuels et antérieures au dossier sont affichés en ordre alphabétique.

Titulaires actuels au dossier
UPONOR INNOVATION AB
Titulaires antérieures au dossier
ISMO TALONPOIKA
PAUL BARTENSTEIN
Les propriétaires antérieurs qui ne figurent pas dans la liste des « Propriétaires au dossier » apparaîtront dans d'autres documents au dossier.
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Description du
Document 
Date
(yyyy-mm-dd) 
Nombre de pages   Taille de l'image (Ko) 
Dessins 2017-02-08 7 177
Description 2017-02-08 11 364
Abrégé 2017-02-08 1 16
Revendications 2017-02-08 3 66
Dessin représentatif 2017-07-18 1 37
Page couverture 2017-07-18 2 72
Certificat de dépôt 2017-02-19 1 202
Courtoisie - Certificat d'enregistrement (document(s) connexe(s)) 2017-05-15 1 102
Courtoisie - Lettre d'abandon (taxe de maintien en état) 2019-02-28 1 174
Avis de retablissement 2019-02-28 1 165
Rappel de taxe de maintien due 2018-10-09 1 112
Avis du commissaire - Requête d'examen non faite 2022-03-08 1 541
Courtoisie - Lettre d'abandon (requête d'examen) 2022-06-05 1 550
Avis du commissaire - non-paiement de la taxe de maintien en état pour une demande de brevet 2023-03-22 1 548
Nouvelle demande 2017-02-08 4 89
Paiement de taxe périodique 2019-02-18 1 35