EP2434064A1 - Automatische Spendervorrichtung mit Dosierpumpe mit einstellbarem Volumen - Google Patents

Automatische Spendervorrichtung mit Dosierpumpe mit einstellbarem Volumen Download PDF

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Publication number
EP2434064A1
EP2434064A1 EP11182666A EP11182666A EP2434064A1 EP 2434064 A1 EP2434064 A1 EP 2434064A1 EP 11182666 A EP11182666 A EP 11182666A EP 11182666 A EP11182666 A EP 11182666A EP 2434064 A1 EP2434064 A1 EP 2434064A1
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EP
European Patent Office
Prior art keywords
tank
water
volume
toilet
valve
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.)
Withdrawn
Application number
EP11182666A
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English (en)
French (fr)
Inventor
M. Jean-Pierre Rizzo
M. Olivier Rizzo
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Individual
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Individual
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Publication date
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Publication of EP2434064A1 publication Critical patent/EP2434064A1/de
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    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D9/00—Sanitary or other accessories for lavatories ; Devices for cleaning or disinfecting the toilet room or the toilet bowl; Devices for eliminating smells
    • E03D9/02—Devices adding a disinfecting, deodorising, or cleaning agent to the water while flushing
    • E03D9/03—Devices adding a disinfecting, deodorising, or cleaning agent to the water while flushing consisting of a separate container with an outlet through which the agent is introduced into the flushing water, e.g. by suction ; Devices for agents in direct contact with flushing water
    • E03D9/033—Devices placed inside or dispensing into the cistern
    • E03D9/037—Active dispensers, i.e. comprising a moving dosing element
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D9/00—Sanitary or other accessories for lavatories ; Devices for cleaning or disinfecting the toilet room or the toilet bowl; Devices for eliminating smells
    • E03D9/02—Devices adding a disinfecting, deodorising, or cleaning agent to the water while flushing
    • E03D2009/028—Devices adding a disinfecting, deodorising, or cleaning agent to the water while flushing using a liquid substance

Definitions

  • the present invention relates to a vending machine with an adjustable volume dosing pump which is mounted in the toilet tank to automatically dispense, with each use of the toilet and at the end of the emptying cycle, a pre-diluted, adjusted and adapted dose of sanitary product. to the volume of water to clean, disinfect and deodorize the toilet bowl.
  • perforated plastic support is commonly used, hooked to the inner rim of the bowl with a pellet containing anti-scale products, anti-odor, which dissolves the repeated passage of water, in order to clean the bathroom.
  • a device similar to the previous one is also proposed, it is a plastic support on which is placed a small bottle of liquid sanitary product, mounted hanging inverted on the inner edge of the bowl, the product is supposed to slowly pour in the passage water, it is quite otherwise, the bottle empties very quickly and especially without reaching and coat all the interior surfaces of the toilet bowl, emptying flush systematically evacuates in its wake and laterally in a few seconds almost all the products in the sewers, it remains nevertheless a very small part of product and its action is limited in the siphon of the bowl.
  • Another system proposes to connect the toilet seat to the extraction of air from the centralized mechanical ventilation to suck the unpleasant odors, which does not solve the need for cleanliness and deodorize really the points of production of odors as well than the inevitable imperative of disinfection.
  • diffuser placed in the toilet tank equipped with a fixed capacity doser moved by a float and adapted to the only product of the mark, the dilution of the cleaning product is done in the totality of the water the toilet tank, this extremely low dilution of approximately 1/5000 th and more, lets presuppose the use of a highly concentrated product, the dosage is about two milliliters to eight liters of water on average in a toilet tank.
  • the major disadvantage is that the water of the toilet tank with its small amount of product is completely discharged to the sewers by the action of flush toilet, A water evacuation that takes place between 3 to 5 seconds does not can produce effects other than that of the passage of water, therefore there is actually and virtually no final product too little in the toilet bowl to be able to act in terms of cleaning or effective disinfection.
  • This system allows the low dosing solution to leach all surfaces and the entire product is evacuated in 4 seconds directly to the sewers.
  • Another system proposes from a thick and sticky gel, manually compressed and pushed by a piston in its cylindrical support, this system makes it possible to deposit and stick a pellet of this sticky gel on the inner wall of the toilet bowl, for disinfect and deodorize.
  • This system is one of the last product currently marketed, the deodorant effect does not last as much as the presence of the pellet, as for disinfection, the product is subject to the direct passage and laterally water and can not in any case achieve and cover the inner surfaces of the bowl. As for the cases mentioned above, everything is evacuated to the sewers.
  • toilets are the first point of visit.
  • a practice in the restaurant, a preliminary visit of the toilets provided us with elements of appreciation.
  • the present invention aims to meet and satisfy the need of the technical problem: clean, disinfect and deodorize regularly and effectively and permanently all the inner parts of the toilet composed: from from the inside of the water tank, the filling and evacuation mechanisms, the internal ducts of the water passage circuit and especially of all the internal surfaces of the bowl, even surfaces inaccessible manually.
  • the adjustable volume dosing pump of the dispenser makes it possible to regulate the volume of the dose of liquid product with respect to a determined volume of water, and, to maintain this dosage adjusted throughout the use of the same product, to clean , disinfect and deodorize the toilets.
  • the user can vary the volume of the dose according to the need and the product, with the possibility of using commonly marketed products. Each product having its protocol and specifications of dosages.
  • the automatic dispenser dosing pump with variable volume can be equipped with two versions of variable volume dosing pump: figures 1 and 3 , represent the diaphragm pump dosing version (4c), the figures 2 , 4 and 5 , represent the piston pump metering version (6a).
  • the dispenser From the emptying and evacuation of water from the toilet tank (2), the dispenser allows 90% of the water to flow out of the toilet tank, to evacuate after use the contents of the toilet bowl with a classic cleaning with fast water flow.
  • the water level drops and the float (10) descends and drives the membrane (4c) which allows the sanitary product contained in the tank (1) to be sucked in and to be introduced by the valve entering (7) in the volume above the membrane (4c) of the metering pump (4), which represents a first technical feature.
  • Second Phase Before the end of the emptying, while it remains being evacuated in the toilet tank (2) only 1.5 liters of water, the float (20), fixed to the articulated lever (19) , flip-flop and instantly triggers the opening of the valve (17) of the auxiliary tank (15) which releases the pre-dilution immediately mixed with the end of the water flow of the toilet tank (2), the set and pre-diluted dose of sanitary product is prepared by the previous cycle in the annex tank (15).
  • the third phase corresponds to the water filling of the toilet tank (2), the rise of the water immerses the float (20) which by its action on the articulated lever (19) closes the check valve ( 17) of the auxiliary tank (15).
  • auxiliary tank (15) is prepared with the dose of product that has just been transferred and the water contained in this tank pre-dilution, which facilitates better and faster to mix with the end of evacuation of the next use a toilet, which represents a sixth technical characteristic.
  • the use of the automatic dispenser allows the sanitary products to act in the best of their effectiveness to reach the objective of a real cleaning, a disinfection, an anti-scale treatment of all the internal surfaces of the toilets and to deodorize this set and the local as it is done during a manual intervention.
  • the current liquid products on the market offer multifunctional treatments that are perfectly adapted and usable by the automatic dispenser dosing pump with adjustable volume.
  • the automatic dispenser dosing pump with adjustable volume figure 2 , consists of the main tank (1) to receive and contain, the various sanitary products used to sanitize the toilet, and the annex tank (15) open with filling slot.
  • the auxiliary tank (15) is attached laterally to the main tank (1), these two tanks may optionally be made in one piece.
  • the auxiliary tank (15) can also be mounted vertically adjustable sliding against the reservoir (1) with a holding screw in position for the setting point of the triggering of the opening of the discharge valve (17) by the float (20). ) when there is only 1.5 liters of water remaining at the end of the evacuation.
  • toilet water tanks are mounted inside the toilet water tank (2) from the existing and free reservation hole, the toilet water tanks are marketed with two holes for the left or right attachment of the water tap. arrival of water. It is also possible for toilet tanks with water inlet from below or different to provide fixing systems, by jamming or tight side hooks to the edges of the tank (2).
  • a sealed assembly of the main tank (1), figure 6 , with the toilet tank (2) is made from the neck (3) for filling products of the tank (1), made by screwing two nuts (3a) on the neck (3) outside the tank ( 2) and inside the tank (1), enclosing two seals (3c).
  • the neck has a flexible lid (3b) for closing and protection.
  • the neck can be transparent, to visualize the full level.
  • the main reservoir (1) has a rigid lid (13) on which is indicated the adjustment of the volume of doses from the indexed knob (14) actuating the volume adjustment rod (5).
  • this main tank (1) In the bottom of this main tank (1) is a vertical cylindrical recess in which the adjustable volume piston pump device (6) is mounted, the assembly is carried out from below by four-point pickings, detail A on the figure 4 represented in figure 9 , or by screwing, not shown, from the base of the metering pump (6) to the reservoir (1).
  • a circular seal (11) seals with the sanitary treatment product present in its upper part and the water of the toilet tank in which this assembly of the dosing pump is immersed.
  • This assembly allows a tight assembly for the maintenance of the pump dispenser in place.
  • the stop adjustment rod (5) of the volume is aimed at the top and at the center of the pump dispenser (6) in a centered and threaded hole, the screwing or unscrewing of the adjusting rod (5) constitutes the adjustment stop of the volume of the product dose, the stop position of the adjustment rod (5) thus obtained determines the adjustable high point of contact of the upper part of the piston (6a), which limits its upward movement to obtain the volume adjustment from the product dose to the dosing pump (6).
  • a spring (6b) facilitates the descent of the piston (6a).
  • the other orifice is used to receive the outlet valve (8), slat or ball, the valve support (8c) connected to a sealed conduit (8a), and on the part upper connected to the pouring spout (8b) for feeding, at each upward cycle the auxiliary reservoir (15), a set dose of sanitary product, figure 2 .
  • the piston (6a) receives on its upper part a two-way double-lip seal (9) resiliently hooked to a circular groove at the top of the piston and in its lower part is mounted by a forced cylindrical assembly the main float (10). ) which actuates, at each change of the water level in the toilet tank (2) the piston (6a), within the limit provided by the adjustable position of the stop rod (5) of the dosing pump (6), the lowering of the water level brings down the float (10) and the piston (6a) which draws the product from the treatment of the main tank (1) through the inlet flap to the slat or ball (7), the product is introduced also by gravitation which leads to self-priming and self-filling.
  • Auxiliary tank variant (15), open with filling slot and adjusting slide (21), figures 2 and 7 Auxiliary tank variant (15), open with filling slot and adjusting slide (21), figures 2 and 7 .
  • the rise of water immerses the float (20) which by its action on the lever (19) closes the exhaust valve (17).
  • the rise of the water level immerses the float (10) which rises and its vertical thrust on the piston (6a) stops in contact with the stop adjustment rod (5) which determines the adjustment of the volume of the dose, materialized by the low and high positions of the piston (6a), figures 2 and 5 .
  • the dose of product sucked and contained in the metering pump (6) above the two-lip seal (9), is transferred to the auxiliary tank (15) through the outgoing valve (8) and the conduit (8a) to to be poured by the pouring spout (8b) into the auxiliary tank (15).
  • the filling of the tank (2) continues and reaches its high level, the water fills the auxiliary tank (15) by the slot passing over the slide (21), detail figure 7 .
  • the slide (21) must be set a few millimeters lower than the high water level of the toilet tank to let the water fill the auxiliary tank (15) and mix with the product coming from the spout (8b) to achieve pre-dilution With this position of the slide (21), if a variation of the level of the toilet tank occurs, the contents of the annex tank (15) will not be affected or dispersed in the water of the toilet tank.
  • the float (20) mounted on the articulated lever (19) tilts and controls the instantaneous opening of the valve (17) which releases the column of pre-diluted product contained in the auxiliary tank (15).
  • the pre-dilution of treatment product contained in the auxiliary tank (15) immediately mixes and evacuates with the end of the emptying, the treatment product, the final volume of which corresponds to the volume of the siphon is calculated not to be evacuated the sewer system, smeared all surfaces in its path, and finished draining and being recovered and retained in the siphon of the bowl to clean, disinfect and deodorize the toilet automatically and with each use of the toilet, the same operation is reproduced.
  • the dose of product sucked and contained in the metering pump (6) above the two-lip seal (9), is transferred to the auxiliary tank (15a) through the valve (8) and the duct (8a) to be poured by the spout (8b) into the auxiliary tank (15a).
  • the water level continues to rise reaches the inlet valve (18), the sealed cover (16) retains the air in this auxiliary tank (15a) and the water is introduced by this valve to its level, then stops entering the tank (15a) due to the bell effect.
  • the amount of water admitted is determined by the position of the inlet valve (18).
  • the inlet valve (18) passes and charges the reserve of air, due to the height of the water in the reservoir (2), in this auxiliary reservoir (15a).
  • This reserve of air is compressed in the annex tank (15a) above the pre-dilution.
  • the sealed connection of the duct (8a) and the lamella or ball outlet valve (8) and the inlet valve (18) do not allow any leakage or return and the pressure and pre-dilution can be released only by the opening of the evacuation valve (17), even if the level of the toilet water tank (2) was lowered without reaching the trigger level of the opening of the evacuation valve (17).
  • the pressure of the air inside the auxiliary tank (15a) is in equilibrium with the external water pressure, making any leakage through the valves (17) and (18) impossible if the toilet tank is not empty.
  • the air volume of the auxiliary tank (15a) must be as large as possible to obtain better evacuation propulsion of the pre-dilution.
  • This product mixture covers and coats all of the interior surfaces of the water tank, the circulation ducts, attains, coats and adheres to all of the interior surfaces of the toilet bowl, this amount of treatment mixture, the volume of which final is the volume of the siphon is calculated to not be discharged to the sewer, eventually flow and be recovered and retained in the siphon of the bowl.
  • the product will be able to act correctly over time on all these coated surfaces of product and between each use of the toilets to give the product the time of action in the same way as it is practiced in manual operation, to clean, disinfect and deodorize the product. interior set of toilets and use the minimum of product and water for this final operation. By its presence in the bowl, the product also acts on the siphon.
  • the dose of product sucked and contained above the double-lip seal (9) of the metering pump (6) is transferred, via the outlet valve (8) along the duct (8a) to be discharged by the spout ( 8b) in the auxiliary tank (15b), the filling of the tank (2) continues and reaches the inlet valve (18) the water enters and continues to fill the auxiliary tank (15b) at the same water level only in the tank (2) which constitutes a column of pre-diluted product.
  • the pressure at the inside and outside of the auxiliary tank (15b) is identical and the valve (18) opposes any liquid outlet if the external level drops without reaching the float (20).
  • the contents of the annex tank (15b) will not be affected or dispersed in the water of the toilet tank.
  • the inlet valve (18) for this alternative tank variant (15b) can be placed between the low and high water levels of the toilet tank.
  • the float (20) mounted on the articulated lever (19) tilts and controls the instantaneous opening of the discharge valve (17) which releases the pre-dilution column from the treatment product contained in the reservoir (15b).
  • the pre-dilution immediately mixes and is evacuated with the end of the emptying, the treatment product, whose final volume corresponds to the volume of the siphon is calculated not to be discharged to the sewers, smeared all surfaces in its path, it eventually flow and be recovered and retained in the siphon of the bowl.
  • the automatic dispenser dosing pump with adjustable volume, figures 1 consists of the diaphragm metering pump version (4c) and the auxiliary tank variant (15) with filling slot and slide (21) figure 3 and 7 .
  • the float (10) mounted on the pusher (4d) pulls down the membrane (4c) attached to the pusher (4d) by the plate (4e).
  • the product of the tank (1) is introduced by the inlet valve (7) and filled with the upper part of the membrane (4c) towards the end of the evacuation while there is still about 1.5 liters to flow or 4.5 centimeters of water in the tank (2), the float (20) tilts and actuates with the articulated lever (19) the instantaneous opening of the discharge valve (17) which releases the pre-dilution column from the treatment product contained in the auxiliary reservoir (15).
  • the treatment product whose final volume corresponds to the volume of the siphon, is calculated to not be drained to the sewer, plastered and adhered to all surfaces in its path, the mixture eventually flowing and being recovered and retained in the siphon of the bowl.
  • the filling of the toilet tank (2) begins.
  • the dose of product sucked and contained in the metering pump (4) above the membrane (4c) is transferred to the auxiliary tank (15) through the valve (8) following the conduit (8a) to be discharged by the spout (8b) in the auxiliary tank (15).
  • the filling of the tank (2) continues and reaches its high level, the water fills the auxiliary tank (15) by the slot by passing over the slide (21), figures 1 and 7 .
  • the slide (21) must be set a few millimeters lower than the high water level of the toilet tank to let the water fill the tank (15) and mix with the product coming from the spout (8b), if a variation of the level of the toilet tank occurs, the contents of the annex tank (15) will not be affected or dispersed in the water of the toilet tank.
  • the cycle of the automatic dosing pump dosing machine is completed, until the next use of the toilet, this cycle will start again each time the toilet is used.
  • the automatic cleaning and disinfection thus obtained on all the sensitive parts of the toilets makes for the staff in charge, the task of maintenance easier, faster, less restrictive and eliminates nuisances and inconveniences.
  • this dispenser automatic dosing pump volume is very useful in private use in toilets equipped with sanitary tanks, however the use of automatic dispenser dosing pump with adjustable volume is recommended in private and public health, large areas, in the workplace of companies, restaurants, hotels, holiday centers and essential in the health sector, hospitals, clinics, medical social care establishments for which the permanent treatment of hygiene and antibacterial control and a permanent and absolute primordial necessity.

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Water Supply & Treatment (AREA)
  • Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)
EP11182666A 2010-09-24 2011-09-26 Automatische Spendervorrichtung mit Dosierpumpe mit einstellbarem Volumen Withdrawn EP2434064A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1003815A FR2965282B1 (fr) 2010-09-24 2010-09-24 Distributeur automatique pompe doseur a volume reglable pour nettoyer desinfecter et desodoriser les cuvettes des toilettes

Publications (1)

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EP2434064A1 true EP2434064A1 (de) 2012-03-28

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EP11182666A Withdrawn EP2434064A1 (de) 2010-09-24 2011-09-26 Automatische Spendervorrichtung mit Dosierpumpe mit einstellbarem Volumen

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US (1) US20120073036A1 (de)
EP (1) EP2434064A1 (de)
FR (1) FR2965282B1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2991349A1 (fr) * 2012-05-30 2013-12-06 Jean Pierre Rizzo Chasse d'eau autonome et automatisee avec distributeur de produit desinfectant et diffuseur de deodorant integres
EP2886728A1 (de) * 2013-12-20 2015-06-24 Manuel Losada Campos Ein zisternen mit einem produktspender
CN107859127A (zh) * 2017-10-25 2018-03-30 黄丹红 一种内置于储水箱的洁厕剂加注装置
FR3070991A1 (fr) * 2017-09-14 2019-03-15 Mohammed Ali Akil Pompe pour la delivrance de produit sanitaire dans un reservoir de chasse d'eau de toilettes

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2015391963B2 (en) * 2015-04-24 2019-12-19 Howard Oliver Britz Device for delaying introduction of agents to a cistern
EP3397817B1 (de) * 2016-01-25 2020-03-18 Reckitt Benckiser (Brands) Limited Beckenspendervorrichtung
CN105971083A (zh) * 2016-05-16 2016-09-28 厦门市极洁卫浴有限公司 一种自动定量泡沫发生器
CN111358295B (zh) * 2020-04-20 2024-06-28 山东碧汀智能科技有限公司 一种基于物联网ai交互式直饮水机

Citations (7)

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US1182742A (en) * 1915-08-09 1916-05-09 Spencer Bickerton Disinfectant apparatus.
US3254797A (en) * 1965-03-04 1966-06-07 Charles R Porter Chemical dispenser
FR1494968A (fr) * 1966-08-04 1967-09-15 Appareil distributeur d'une dose de liquide
US3890657A (en) * 1974-05-16 1975-06-24 Roy M Gray Chemical dispenser for toilet
US3999226A (en) * 1975-06-23 1976-12-28 Tobin Wolf Toilet sanitizer with disposable container
DE20015923U1 (de) * 2000-09-14 2000-11-30 Lindner, Günter, 98673 Crock Dosiereinrichtung für flüssiges Reinigungs- und Desinfektionsmittel, vorzugsweise für den Spülkasten eines Wasserklosetts
EP1426505A2 (de) * 2002-12-05 2004-06-09 I.G. Incerti Plast S.R.L. Universeller Spender für Desinfektionsflüssigkeit für Wasserbehälter o. ä., insbesondere für Spülkästen für Toiletten

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US4429809A (en) * 1980-04-25 1984-02-07 Airwick Industries, Inc. Device for the metered release of an active ingredient
US5488742A (en) * 1995-01-12 1996-02-06 Liao; Su-Lan Toilet disinfectant release apparatus
IL145927A (en) * 2001-10-15 2009-02-11 Yair Eshel Fluid dispensing device
TW595629U (en) * 2003-04-30 2004-06-21 Captain Asset Invest Man Ltd Liquid dispenser
GB2402945B (en) * 2003-06-16 2008-02-20 Jeyes Group Ltd A liquid dispensing device
JP5469093B2 (ja) * 2008-01-15 2014-04-09 エス．シー． ジョンソン アンド サン、インコーポレイテッド オンタンク式トイレディスペンサ

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1182742A (en) * 1915-08-09 1916-05-09 Spencer Bickerton Disinfectant apparatus.
US3254797A (en) * 1965-03-04 1966-06-07 Charles R Porter Chemical dispenser
FR1494968A (fr) * 1966-08-04 1967-09-15 Appareil distributeur d'une dose de liquide
US3890657A (en) * 1974-05-16 1975-06-24 Roy M Gray Chemical dispenser for toilet
US3999226A (en) * 1975-06-23 1976-12-28 Tobin Wolf Toilet sanitizer with disposable container
DE20015923U1 (de) * 2000-09-14 2000-11-30 Lindner, Günter, 98673 Crock Dosiereinrichtung für flüssiges Reinigungs- und Desinfektionsmittel, vorzugsweise für den Spülkasten eines Wasserklosetts
EP1426505A2 (de) * 2002-12-05 2004-06-09 I.G. Incerti Plast S.R.L. Universeller Spender für Desinfektionsflüssigkeit für Wasserbehälter o. ä., insbesondere für Spülkästen für Toiletten

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2991349A1 (fr) * 2012-05-30 2013-12-06 Jean Pierre Rizzo Chasse d'eau autonome et automatisee avec distributeur de produit desinfectant et diffuseur de deodorant integres
FR2994986A1 (fr) * 2012-05-30 2014-03-07 Jean Pierre Rizzo Chasse d'eau pour toilettes autonome et automatisee a trois niveaux de debit avec distributeur de produit desinfectant et diffuseur de deodorant integres
EP2886728A1 (de) * 2013-12-20 2015-06-24 Manuel Losada Campos Ein zisternen mit einem produktspender
FR3070991A1 (fr) * 2017-09-14 2019-03-15 Mohammed Ali Akil Pompe pour la delivrance de produit sanitaire dans un reservoir de chasse d'eau de toilettes
CN107859127A (zh) * 2017-10-25 2018-03-30 黄丹红 一种内置于储水箱的洁厕剂加注装置

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Publication number Publication date
FR2965282B1 (fr) 2013-11-08
US20120073036A1 (en) 2012-03-29
FR2965282A1 (fr) 2012-03-30

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