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Title:
COLLECTOR OF WASTED CLEAN WATER AND ITS METHOD
Document Type and Number:
WIPO Patent Application WO/2019/102235
Kind Code:
A1
Abstract:
The invention relates to a device which is capable of collecting clean water running freely from a tap and not allowing grey water to be introduced into the device when using the water running from the tap and a method performed from the device. The device consists of a base (1), a water separator (5), a safety tank base (10), a security tank shell (3), a pipe (16), a water flow switch (17), a pipe (19). The operation of the device is achieved by exploiting the concentrated kinetic energy of the water column at the inlet of the device. Through a hydraulic circuit and with fluid balances, clear water is allowed to pass and gray waste water is prevented. The invention finds application in domestic use, hotels, business premises, etc.

Inventors:
NAOUM, Dimitrios (12 Konstantinou Saratsi Str, 55 132 Kalamaria Thessalonikis, GR)
Application Number:
GR2017/000065
Publication Date:
May 31, 2019
Filing Date:
November 24, 2017
Export Citation:
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Assignee:
WATER SAVING TECHNOLOGIES COMPANY LIMITED (12 Konstantinou Saratsi Str, 55 132 Kalamaria Thessalonikis, GR)
International Classes:
E03B1/04; E03C1/22
Domestic Patent References:
WO2000003098A12000-01-20
WO2012120265A22012-09-13
WO2000003098A12000-01-20
Foreign References:
DE102013015678A12015-03-26
Attorney, Agent or Firm:
PANAGIOTIDOU, Effimia (3 Aristotelous Str, Thessaloniki, 546 24, GR)
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Claims:
CLAIMS

1) Collector of Wasted Clean Water consisting of a base, a tank, an overflow inlet, a clean water collection pipe, characterized by the fact that it comprises:

I. a base (1) with a recess (4) in its interior which nests the water junction (5), pipe (6) in the lower side for the outlet of the collected clean water, opening

(7) for the outlet of grey water discharged from the device, and projections (34) at the base edge (1) for connection to the shell of the safety tank (3) with respective recesses,

II. a water junction (5) which is a rectangular parallelepiped element with the bottom and a small side having the form of an open-angle corner tube (44) cut in the middle and all its way from a level passing through the center of the cross section and in its horizontal axis nests in the recess (4), which is complementary to the water junction (5), having an internal recess (22) with a through hole (8) at the bottom of which the safety tank (9) is filled and empties through the recess (22),

III. safety tank base (10), which together with the security tank shell (3) create the safety tank (9), which is a flat circular surface with curved edges, carrying on the top a through-flow water flow guide (11) having internal slopped walls extending to the roof of tank (9) having at the upper edge lip (12) with a large internal slope, which is facing a short distance from a complementary lip (13) of the through-hole (15) of the water inlet of the tank shell (3) and at the bottom of safety tank (10) and around the lower end of the water flow guide (11) there is a circumferential dome surface (21), which is located above the overflow lip (20), having curved edges (24), which is located above the inclined surface (23), whilst in a central area of the base of the safety tank (10) exists an opening (14) from which the safety tank (9) connects with pipe (6) outlet of collected clean water though recess (22) and the through hole

(8) of the water junction (5),

IV. shell of the safety tank (3) being the walls and the roof of the security tank

(9) bearing a through-hole (15) on the upper side, with inclined inner walls having a lip (13) at the bottom of the through hole (15) opposite to and at a short distance from the lip (12) of the water flow guide (il) having a complementary form of the lip (12) and the lower and inner part of the shell of the security tank (3) there are recesses in which the shell of the safety tank (3) is firmly connected to the corresponding projections (34) of the base (1) by a small rotation thereby firmly attaching the security tank shell (3) to the base (1), locking inside the base of the safety tank (10) and the water junction (5) all in one set,

V. a pipe (16) connected from one end to the pipe (6) of the base (1) and at the other end by the water flow switch (17), VI. a water flow switch (17) which is a cylindrical through fitting with a hole (18) at its periphery, connected on one side to the pipe (16) and on the other by a pipe (19), the switch (17) is located at a level higher than the overflow lip (20),

VII. a pipe (19) connected to the water flow switch (17) for transferring the clean collected water to a clean water collection tank.

2) Collector of Wasted Clean Water according to claim 1, characterized by the fact that the base has three outer flaps (2) extending towards the shell of the safety tank (3) for supporting the device at the base of the bathroom or kitchen sink.

3) Collector of Wasted Clean Water according to claim 1, characterized by the fact that the pipe (16), the water flow switch (17) and the pipe (19) pass through the interior of the safety tank (9) with the outlet of the clean collected water by the free end of the pipe (19) through the opening (53) and the base (1) has an intermediate cylindrical support (37) for the connection of the device with the sink valve (29) (30) (32) (33).

4) Collector of Wasted Clean Water according to claim 3, characterized by the fact that it has a sink valve comprising a main body (29), a sealing ring (30), a plug (31), a clean water collecting pipe (32), by clamping nut (33) of the valve in the sink, to extract the collected clean water therethrough.

5) A method of collecting clean wasted water which is performed by the Collector of

Wasted Clean Water according to claims 1-4 which is characterized by the fact that it is carried out with the opening of the tap and having a free flow of water by the following steps:

I. the water enters the device from the inlet (15),

II. passes through the lips (13) (12),

III. crosses the water flow guide (11),

IV. a slight vacuum is created in the tank (9) caused by the rapid flow of water from the lips (12) and (13),

V. the water with the energy containing is filling the pipe (6), the pipe (16) reaches the water flow switch (17) and there is a small water outflow from the hole (18),

VI. there is a slight loss of water flow from the overflow lip (20) flowing from the inclined surface (23) and the opening (7) to the sink drainage,

VII. the tank (9) begins to fill through the hole (8) and the opening (22) due to the pressure created in the two pipes (6) and (16), assisted by the vacuum caused by the rapid flow of water from the lips (12) and (13),

VIII. the water path continues into the pipe (19) and flows out of its end, IX. the water outflow from the hole (18) is stopped and air is entering from the same hole drifting in the form of bubbles from the water flowing into the tube (19),

X. the flow of water in the two pipes (6) and (16) is facilitated by the suction, carried out by part of the vacuum created by the water flow in the pipe (19),

XI. the loss of water from the overflow lip (20) is reduced,

XII. the tank (9) is filled,

XIII. the water runs freely in a clean water collection tank from the end of the pipe (19),

when the user puts his hands under the water tap to clean his hands, the following steps of the method are performed in turn:

XIV. the water column running from the tap to the inlet (15) is interrupted and the gray water starts to fall on the Collector device,

XV. the most of gray water runs scattered on the device, and what enters through the inlet (15) of the device does not have enough energy to continue to press the water in the two pipes (6) and (16),

XVI. the water in the pipe (6), the pipe (16), the water flow switch (17) and the pipe (19) is interrupted at the point where the hole (18) of the water flow switch (17) is,

XVII. the water in the pipe (19) goes through the introduction of air from the hole (18) and due to gravity in a clean water collection tank,

XVIII. the water in the pipe (16) due to lack of pressure at the inlet of the pipe (6) and with gravity returns rapidly and overflows from the lip (20) drifting the water in pipe (6),

XIX. the first and biggest in volume dirty water which enters the device during the first seconds of the usage, is discharged quickly through the sloped surface (23) and opening (7) to the drain of the sink,

XX. the tank (9) begins to discharge through the opening (22) and the hole (8) due to the lack of pressure on the two pipes (6) (16) with parallel intake of abundant amount of air entering the tank from the lips (12) (13),

XXI. the missing water is added to the siphon, created in the pipe (6) and in the part of the pipe (16) which is drifted due to the velocity of the water returning from the pipes (16) (6),

XXII. an overflow from the lip (20) is created for a long time,

XXIII. the gray falling water is discharged through the inclined surface (23) and the opening (7) into the sink drain.

AMENDED CLAIMS

received by the International Bureau on 13 September 2018 (13.09.2018)

1) Collector of Wasted Clean Water consisting of a base, a tank, an overflow inlet, a clean water collection pipe, characterized by the fact that:

I. the base (1) has a recess (4) in its interior which nests water separator (5) forming overflow lip (20), has a splitter pipe (6) in the lower side for the outlet of the collected clean water, inclined surface (23) and opening (7) for the outlet of grey water discharged from the collector, and projections (34) at the base edge (1) for connection to a safety tank shell (3) with respective recesses,

II. the water separator (5) which is a rectangular parallelepiped element with the bottom and a small side to form a curve which has a hollow recess (44) and internally has a recess (22) with a through hole (8) at the bottom of which a safety tank (9) is filled and empties through the recess (22),

III. has a safety tank base (10), which together with the safety tank shell (3) create the safety tank (9), which is a flat circular surface with curved edges, carrying on the top a through-flow water flow guide (11) having internal slopped walls extending to the roof of the safety tank (9) having at the upper edge, lip (12) with a large internal slope, which is facing a short distance from a complementary lip (13) of the inlet hole (15) of the safety tank shell (3) and at the bottom of the safety tank base (10) and around the lower end of the water flow guide (11) there is a circumferential dome surface (21), which is located above the overflow lip (20), having curved edges (24), which is located above the inclined surface (23), whilst in a central area of the of the safety tank base (10) exists an opening (14) from which the safety tank (9) connects with the splitter pipe (6) though the recess (22) and the through hole (8) of the water separator (5),

IV. the safety tank shell (3) being the walls and the roof of the safety tank (9), bearing an inlet hole (15) on the upper side, with inclined inner walls having a lip (13) at the bottom of the inlet hole (15) opposite to and at a short distance from the lip (12) of the water flow guide (11) having a complementary form of the lip (12) and the lower and inner part of the shell safety tank shell (3) there are recesses in which the safety tank shell (3) is firmly connected to the corresponding projections (34) of the base (1) by a small rotation thereby firmly attaching the safety tank shell (3) to the base (1), locking inside the safety tank base (10) and the water separator (5) all in one set,

V. has a stable pressure pipe (16) connected from one end to the splitter pipe (6) of the base (1) and at the other end by a water flow switch (17),

VI. the water flow switch (17) is a cylindrical through fitting with a hole (18) at its periphery, connected on one side to the stable pressure pipe (16) and on the other side to a clean water outlet pipe (19), the switch (17) is located at a level higher than the overflow lip (20),

VII. the clean water outlet pipe (19) is connected to the water flow switch (17) for transferring the clean collected water to a clean water collection tank. 2) Collector of Wasted Clean Water according to claim 1, characterized by the fact that the base has three outer fins (2) extending towards the safety tank shell (3) for supporting the collector at the base of a bathroom or a kitchen sink.

3) Collector of Wasted Clean Water according to claim 1, characterized by the fact that the base (1) has an intermediate cylindrical support (37) the stable pressure pipe (16), the water flow switch (17) and the clean water outlet pipe (19) are placed inside the safety tank (9), the outlet of the clean collected water is done by the free end of the clean water outlet pipe (19).

4) Collector of Wasted Clean Water according to claims 1 and 3, characterized by the fact that it is connected to a sink valve comprising a main body (29), a sealing ring (30), a clean water collecting pipe (32), by clamping nut (33) of the valve in the sink, to extract the collected clean water and the grey discharged water therethrough.

5) A method of collecting clean wasted water which is performed by the Collector of Wasted Clean Water according to claims 1-4 which is characterized by the fact that it is carried out with the opening of the tap and having a free flow of water by the following steps:

I. the water enters the collector from an inlet hole (15),

II. passes through lips (13) and (12),

III. crosses a water flow guide (11),

IV. a slight vacuum is created in a safety tank (9) caused by the rapid flow of water from the lips (13) and (12),

V. the water with the energy containing is filling a splitter pipe (6), a stable pressure pipe (16), reaches a water flow switch (17) and there is a small water outflow from a hole (18) of the water flow switch (17),

VI. there is a slight loss of water flow from an overflow lip (20), flowing from an inclined surface (23) and an opening (7) to the drainage,

VII. the safety tank (9) begins to fill through a through hole (8) and a recess (22) due to the pressure created in the splitter pipe (6) and the stable pressure pipe (16), assisted by the vacuum caused by the rapid flow of water from the lips (13) and (12),

VIII. the water path continues into a clean water outlet pipe (19) and flows out of its end, IX. the water outflow from the hole (18) of the water flow switch (17) is stopped and air is entering from the same hole drifting in the form of bubbles from the water flowing into the clean water outlet pipe (19),

X. the flow of water in the splitter pipe (6) and the stable pressure pipe (16) is facilitated by the suction, carried out by part of the vacuum created by the water flow in the clean water outlet pipe (19),

XI. the loss of water from the overflow lip (20) is reduced,

XII. the safety tank (9) is filled,

XIII. from the end of the clean water outlet pipe (19) the water, directly or through the sink valve (29) (30) (32) (33), runs freely in a clean water collection tank when the user puts his hands under the running water column to clean his hands, the following steps of the method are performed in turn:

XIV. the water column running from the tap to the inlet hole (15) is interrupted and the gray water starts to fall on the collector,

XV. the most of gray water runs scattered on the collector, and what enters through the inlet hole (15) of the collector does not have enough energy to continue to press the water in the splitter pipe (6) and the stable pressure pipe (16),

XVI. the water in the splitter pipe (6), the stable pressure pipe (16), the water flow switch (17) and the clean water outlet pipe (19) is interrupted at the point where the hole (18) of the water flow switch (17) is,

XVII. the water in the clean water outlet pipe (19) due the introduction of air from the hole (18) of the water flow switch (17) and due to gravity goes in a clean water collection tank

XVIII. the water in the stable pressure pipe (16) due to lack of pressure at the inlet of the splitter pipe (6) and with gravity returns rapidly and overflows from the overflow lip (20) drifting the water in the splitter pipe (6),

XIX. the first and biggest in volume dirty water which enters the collector during the first seconds of the usage, is discharged quickly due to the overflow made by the overflow lip (20) through the sloped surface (23) and opening (7) to the drain of the sink,

XX. the safety tank (9) begins to discharge through the recess (22) and the through hole (8) due to the lack of pressure on the splitter pipe (6) and the stable pressure pipe (16) with parallel intake of abundant amount of air entering the tank from the lips (13) (12),

XXI. the missing water is added to the siphon, created in the splitter pipe (6) and in the part of the stable pressure pipe (16) which is drifted due to the velocity of the water returned from the stable pressure pipe (16) and the splitter pipe (6),

XXII. an overflow from the overflow lip (20) is created for a long time, XXIII. due to the overflow made by the overflow lip (20) through the inclined surface (23) and the opening (7) the gray falling water is discharged into the sink drain directly as well as through the sink valve (29) (30) (32) (33).

Description:
Collector of Wasted Clean Water and its method

Description.

The invention refers to a wasted clean water collector and the safe method that is being carried out by it to collect only pure waste water, placed inside the bathroom sink or kitchen sinks and collects the amounts of clean water escaping when the tap remains open at intervals of use, as for instance is the case during hand washing, shaving, tooth brushing, as well as it collects the significant amounts of clean water that are lost while waiting for hot water.

In these uses, the water needed for use is significantly less than what is consumed overall for the uses. The escaping clean water is mixed with the gray water of use, is degraded and is led to drainage. This wasting clean water, which is for a four-person family of 40,000 liters per year, can be collected by the wasted clean water collector and led to water management systems for other uses.

The safe method of collecting wasted clean water implemented by the clean water collector, enables the user to use a rich natural tap water stream for his uses, leaving the comfort and efficiency to work in his favor, while at the same time maximizing water savings. With this method, the user makes a normal use of the tap water without being obliged, in order to save water, to resort to inefficient water uses with smaller amounts of water or to be obliged to change his habits of water use, which is practically difficult to do.

The current state of the art is presented in the W00003098 (COLLECTOR OF UNUSED WATER) Patent describing a portable device, placed inside the bathroom sink or kitchen sinks, which collects the clean water, lost in the intervals of usage. This device presents four important safety problems with regard to ensuring the collection of only clean water and a fifth problem related to how it can be manufactured in low-cost industrial production.

All observations of the five paragraphs below, relate to the problems which are illustrated in Drawing 1 of Patent W00003098, and the numbers referred in the following four paragraphs are the numbers of the components shown in Drawing 1 of Patent W00003098.

First problem of the current state of the art presented in Patent W00003098:

The device’s design aims to: (a) allow clean water to pass through the device as long as it flows freely from the tap and drive it away from the area of the sink in order to be collected; and (b) discharge into the bathroom sink drain or the kitchen sink drain the gray water falling on the appliance when use of the water running from the tap is taking place. In order the above to be achieved, it is necessary in phase (a) the water to flow rapidly through the water flow regulator (1) to the pipes (2) (3) (5) and to quickly fill the tank (7) through the tube (8). In phase (b), the water in the pipes (2) (3) (5) should quickly return and discard the gray water, that falls at the moment, with the overflow created by the overflow lip (4). Immediately afterwards the tank (7) should start to be emptied, to fill the missing water created from the siphon in the pipe (2)=and in part of the pipe (3), which was drifted due to the speed of the water returned from the pipes (5) (3) (2) as mentioned in Patent W00003098.

The device is portable and is placed inside the bathroom sink or kitchen sinks. The head of the device is located below the tap connected to the tube (3) that reaches the edge of the bathroom sink or kitchen sinks and is connected to pipe (5) exiting the edges of the bathroom sink or kitchen sinks. A vital problem is the continuous water flow created by the pipes (2) (3) (5) and the length of pipe (5) which cannot be the same for all bathroom sinks or kitchen sinks because they have different dimensions. Also, the consumer cannot adjust the length each time with accuracy. Even if the consumer succeeds the result will be average. This creates problems of safe operation and reduced performance of the device as shown in the following cases:

I. The bathroom sink or kitchen sink has a low height and the lower end of the pipe (5) is lower than the overflow edge (4). This arrangement creates two serious problems: a) When the tap water flows freely the weight of the water in the pipe (5) creates suction so that all the water in the pipes (2) (3) (5) is sucked in and cannot return to overflow edge (4) when using the water running from the tap. Also, the tank (7) does not fill due to lack of pressure in the tube (8) because all the water in the pipes (2) (3) (5) coming out of the pipe end (5) is sucked in and thus no pressure is created on the pipes (2) (3). b) when use the tap water takes place, a part of the gray water falling into the device whilst e.g. rinsing our hands, is sucked into the clean water collector tank for the time duration until the water is sucked in pipes (2) (3) (5) and the remaining gray water that continues to fall, fills the siphon created in the pipe (2) and a part of the pipe (3) which will also be drawn to the clean water collection tank as soon as the user stops using the tap water and the free flow of water from the tap is continued.

II. The bathroom sink or kitchen sink is high and the lower end of the pipe (5) is higher than the overflow edge (4). The pressure in the pipe (8), the filling of the tank (7) and the return of the water for overflow from the edge (4), when using tap water, will be at satisfactory levels but the performance of the device will be very small with a large loss of water flow from the overflow edge (4) because of the difficulty the water is facing when it is leaving the bathroom sink or kitchen sink.

III. The bathroom sink or kitchen sink has such a height that the lower end of the pipe (5) is at the same level as the overflow lip (4), thus allowing the tank (7) to fill slowly and permit the return of the water with a slow speed in the pipes (2) (3) (5) for overflow from the lip (4) when using the water running from the tap. In this case, because the situation is critical, factors such as the flow rate of the water or if the tap water column is compact or sparkling, can affect the result. Thus, there might be situations such as shaking of water column in pipes (2) (3) (5) following either to be sucked from pipe 5 or return to overflow from lip 4 when the user uses running water from the tap.

As a general result of the above ways of implementation a) there is uncertainty regarding the safe function of the device regarding the collection of only clean water b) there is lower efficiency c) there is delay in device response and unsafe operation. Second problem of the current state of the art presented in Patent W00003098:

An important safety feature of the device is the ability to quickly and for a long-time overflow water from the lip (4) when the tank (7) is emptied in order to ensure that the gray water falling on the device during use tap water, is removed even if the use lasts a long time.

However, this is not the case because the volume of the tank (7) is small and its design is such that it collects the largest amount of water having the smallest dynamic energy at the bottom of its useful volume and the smallest amount of water having more dynamic energy, at the top. Thus, the only possibility offered by the concentrated water of the tank (7) is to be able to supplement only the missing water from the siphon created in the pipe (2) and in part of the pipe (3) which has been drifted due to water velocity coming back from pipes (5) and (3), when using the tap water, as mentioned in Patent W00003098. Thus, the time period from the end of , the overflow caused by returning water from the pipes (5) (3) (2), when using the tap water, until the end of usage, is left without overflowing from the lip (4). As a result, the grey water that is falling on the clean water siphon created by pipe (2) and part by pipe (3) is mixed with the clean collected water.

The inlet and outlet of the water in the tank (7) takes place through the pipe (8) which has a small diameter equal to the diameter of the hole present in the pipe (2) from which the tank (7) is filled and emptied. The pipe (8) ends at the base of the tank (7) in a hole of the same diameter. Due to this design, there are a) friction losses and therefore delay times in water transfer to and from the tank (7), (b) in the case of non-horizontal positioning of the device, the tank (7) cannot be completely emptied because the water remaining after draining 70% of the water therein, it is concentrated on one side of the tank base (7) and cannot be drained due to the small diameter of the hole located at the bottom of the tank (7) at which the upper end of the tube (8) ends.

Due to this design, the response times of the device's operations are reduced, and the chances of entering gray water in the clean water collection circuit, are increased. Third problem of the current state of the art presented in Patent W00003098.

The overflow lip (4) and the bottom of the water flow regulator (1) are at a short distance, facing each other and ending on two surfaces that are parallel to one another. This design allows the formation of a cylindrical surface water film between the overflow edge (4) and the lower end of the water flow regulator (1). That happens during the return and for a smalltime frame after the return of the water from pipes (5) (3) (2) when we use running water from the tap. As a result, small amounts of dirty water are entering to the clean water circuit through pipe (2) because during that time frames the overflow from lip (4) is not sufficient. Also, the runoff surface of dirty water in which lip (4) ends, is horizontal without slop. When the device is in horizontal position part of the discarded grey water is lying in the vicinity of the overflow edge (4) and is led to the sewerage system hardly. As a result, these stagnant quantities of gray water can be drifted in the clean water collection circuit as soon as the tap water stops and the water flows freely.

Fourth problem of the current state of the art presented in Patent W00003098.

When tank (7) is filled during the free flow of water from the tap and the gray water falls into the device, the following should happen: after the water returns from the pipes (5) (3) (2) to overflow from the lip (4), when the tap water is used, the tank (7) should start to empty. This is not usually happening because after the water entering from tube (8) into the tank (7) is stopped and the overflow from the pipe (9) is stopped, which overflow happens on a continuous free tap water flow, a film of water is created inside pipe (9) due to capillary effect. This happens even if the diameter of the pipe (9) is big enough, of course within the limited margins of the given space. This prevents air from entering the tank (7) in order to be emptied. Also, there is not a sufficient height difference between the tank (7) and the overflow edge (4), in order to allow sufficient suction to disrupt the water film to allow air to enter the tank (7) to empty. The result is that the emptying of the tank is not 100% guaranteed.

Fifth problem of the current state of the art presented in Patent W00003098.

The way the device is designed it is difficult to be constructed in industrial scale with low cost.

Brief disclosure of the invention and advantages compared with the previous technique.

The present invention and the safe method performed by it for collecting purely clean wastewater solves the above problems and adds new features with the introduction of new components and an appropriate design that ensures both its safe operation and its high performance through the following: I. A water flow switch which: a) Cuts off the water in the pipes who extract the clean water when tap water is being used, introducing in that way the advantage of the safe operation of the device regarding the collection of only clean water, independently of the bathroom or kitchen sinks dimensions, b) Creates a steady and capable pressure on the pipe which fills the safety tank, introducing the advantage of the quick fill up of the safety tank, c) It helps the water flow in the pipe connecting the device with the water flow switch tank, thus introducing the advantage of increasing the performance level of the device.

II. A safety water tank of large volume with big dimensions on the upper part, introducing the advantage of draining quickly and safely the dirty water even if the usage of the device takes a long time.

III. A water flow splitter introducing the advantage of ensuring low friction losses in the flow of water, from and to the safety tank, and also better usage of the remaining water in the safety tank, during its emptying stage when the device is not horizontal.

IV. Design which prevents the instant creation of water film of cylindric surface between the overflow lip and the opposite of its lower side of the water regulator, introducing the advantage that the entrance of dirty water in the clean water collection circuit is thus prevented.

V. A water flow regulator which in cooperation with the water entrance of the shell of the safety tank: a) They don’t allow the creation of water film in air inlet points of the safety tank, introducing thus the advantage of safe respiration, b) They, create a light vacuum in the safety tank introducing thus the advantage of easier filling, c) They don’t allow the entrance of dirty water in the safety tank during the tap water usage.

Brief Description of the Drawings accompanying the present Invention:

Drawing 1 illustrates the collector of wasted clean water

Drawing 2 illustrates the collector of wasted clean water of drawing 1 dismantled and its parts.

Drawing 3 illustrates a cross-section of the collector of wasted clean water of drawing 1.

Drawing 4 illustrates the collector of wasted clean water with outlet of the collected clean water to the sink valve.

Drawing 5 illustrates the collector of wasted clean water with outlet of the collected clean water to the sink valve of drawing 4, disassembled and the parts of it. Drawing 6 illustrates the valve parts through which the clean collected water is extracted from the collector of wasted clean water with the outlet of the collected clean water to the sink valve.

Drawing 7 shows a section of the collector of wasted clean water with outlet of the collected clean water to the sink valve and the sink valve.

Drawing 8 illustrates a simple water management with the collector of wasted clean water of drawing 1.

Drawing 9 illustrates a simple water management with the collector of wasted clean water with outlet of the collected clean water to the sink valve of drawing 4.

Drawing 10 illustrates an autonomous water management system with the collector of wasted clean water of drawing 1.

Drawing 11 illustrates an autonomous water management system with a collector of wasted clean water with outlet of the collected clean water to the sink valve of drawing 4.

Drawing 12 illustrates an autonomous water management system with the collector of wasted clean water with outlet of the collected clean water to the sink valve of drawing 4.

Drawing 13 illustrates a central water collection system with collectors of wasted clean water with outlet of the collected clean water to the sink valve of drawing 4.

Here is a detailed description of the wasted clean water collector with reference to the attached drawings which accompany the invention.

As illustrated in drawings 1, 2, 3, the device comprises:

I. Base (1) having outer three fins (2) extending towards the shell of the safety tank (3) for supporting the device in the bathroom or kitchen sink. Inside it is a recess (4) that nests the water junction (5) and thus parts of the hydraulic circuit of the device are created. At the bottom, there is a pipe (6) for extracting the collected clean water and an opening (7) for extracting the gray water which is discharged from the device. On the outside of the base edge (1) there are projections (34) for attaching the base (1) to the security tank shell (3) with respective recesses located inside the bottom of the tank shell (3).

II. A water separator (5) which is a rectangular parallelepiped element with the bottom and a small side having the form of an open-angle corner tube (44) cut in the middle and all its way from a level passing through the center of the cross section and in its horizontal axis. The water separator (5) nests in the recess (4) of the base (1), which is complementary to the water separator (5), thus creating the original part of the pipe (6) that extracts the clean collected water. Inside there is a recess (22) with a through hole (8) at the bottom of which the safety tank (9) is filled and empties through the recess (22).

III. Safety tank base (10), which, together with the security tank shell (3), form the safety tank (9), which is a flat rounded surface with convex edges. At the top, there is a throughflow water guide (11) having inclined internal walls and extending towards the roof of the security tank (9). At the upper end, the water flow guide (11) has a lip (12) with large internal slope facing at close proximity to a complementary lip (13) of the shell of the safety tank (3). In a central area of the safety tank base (10) there is an opening (14) through which the safety tank (9) communicates with the outlet pipe (6) of the collected clean water through the recess (22) and the through hole (8) of water junction (5). At the bottom of the safety tank base (10) and around the lower end of the water flow guide (11), exists a peripheral vaulting surface (21) located above the overflow lip (20) having curved edges (24) which is located above the inclined surface (23).

IV. A security tank shell (3) which constitutes the walls and the roof of the security tank (9). This has a through hole (15) with inclined internal walls for the water inlet to the device. The lip (13) at the bottom of the through hole (15) is opposite and at a short distance from the lip (12) of the water flow guide (11) having a complementary form of the lip (12). Inside and at the bottom of the security tank shell (3) there are recesses through which the safety tank shell (3) is firmly connected to the respective projections (34) of the base (1), with a little rotation. Thus, the shell of the safety tank (3) is firmly connected with the base (1), locking inside the base of the safety tank (10) and the water splitter (5), all in one single set.

V. A pipe (16) connected from one end to the pipe (6) of the base (1) and from the other end to the water flow switch (17).

VI. Water flow switch (17) which is a cylindrical through fitting with a hole (18) at its periphery, which is connected from one end to the pipe (16) and from another end by a pipe (19), the switch (17) is located at a level higher than the overflow lip (20),

VII. A pipe (19) connected to the water flow switch (17) for transferring the clean collected water to clean water collection tank.

Detailed description of the operation of the new design and of new components and of the safe method performed by the collector of wasted clean water to collect only the clean waste water, as illustrated in drawings 1,2,3.

Water flow switch. The water flow switch (17) operates as follows.

By opening the tap (drawing 2), the water, with the energy it has, flows through the water inlet hole (15), the water flow guide (11), the pipe (6), the pipe (16), to the water flow switch (17). At this time, a small amount of water flows out of the hole

(18) of the water flow switch (17), informing the user that the device is turned on. Immediately after that action, with water leaving the end of pipe (19), water stops flowing out of hole (18) and air is sucked from the same hole (18), which is created from the vacuum caused from the column of water going to the clean water collection tank. The sucked air is drawn by the water running into pipe (19) in the form of small bubbles. After that time the flow of the water in three pipes (6) (16)

(19) continuous, but the water in pipe (6) and in pipe (16) connected from one end to the pipe (6), starts functioning as an independent circuit with stable pressure for the tank (9) to be filled up and is ready to be separated from the water in pipe (19) which is connected to the water flow switch (17), as soon as the user starts using the tap water, for example when he starts washing his hands. This function is independent from the bathroom and kitchen sinks dimensions.

The diameter of the hole (18) of the water flow switch (17) is such that it does not allow all the vacuum created to be exhausted in the air suction from the hole (18) but part of it is used to facilitate water flow in the two pipes (6) (16), by sucking it gently, without having a total suction of it. As a result, the water losses from the overflow edge (20), are reduced. These losses are otherwise present during normal operation of the device when the water runs freely from the tap and are related to the efficiency of the device. Thus, increasing of the efficiency of the device and at the same time of maintaining of sufficient pressure on the two pipes (6) (16) for filling the tank (9) is achieved.

During the use of the tap water, for example when the user puts his hands under the water column of the tap, to wash or rinse soap, the water in pipe (6), in pipe (16) in flow switch (17) and in pipe (19) is divided in the point the hole (18) of the water flow switch (17). That is caused because of the air entering though hole (18) and the lack of pressure in the two pipes (6) (16) because the used dirty water is running randomly on the device without creating pressure in pipes (6) (16) .The existing water in pipe (16) up to the water flow switch (17) is returning with the help of gravity to the overflow lip (20) drifting the water in pipe (6) and creating a strong overflow from lip (20) .So the biggest quantity of dirty water which at that time of usage is created is drained. The water inside the hole (18), the water flow switch (17) until the pipe’s (19) outlet is drifted with the help of gravity to a clean water collection tank. The operation is similar to all bathroom and kitchen sinks and independent of their dimensions.

As shown above, the water flow switch (17) introduces two advantages which solve the first problem of the prior state of the art mentioned above and add additional features: a) the device works safely regardless of the dimensions of the bathroom or kitchen sinks b) Increasing the efficiency of the device.

Safety tank.

The safety tank (9) has a large capacity and design with large dimensions at the top, so as the largest amount of water which has the most dynamic energy to be at its highest part so that when the safety tank (9) is emptied from the overflow lip (20) during the use of the tap water, to achieve: a) a rapid overflow from the overflow edge (20) in the initial seconds of the use of falling water and the greatest amount of gray water, b) the overflow time of the lip (20) for the remain of the use with the water flowing from the safety tank (9) when emptying it not only serves to supplement the missing water from the siphon created in pipe (6) and in a part of the pipe (16), which is drifted due to the velocity of the water that returns from the two pipes (16) (6) during the use of the tap water, but also creates a continuous overflow from the lip (20) for a period of 10-15 sec thus creating great safety in the operation of the device.

The inlet and outlet of the water in the safety tank (9) is through the opening (14) of the safety tank base (10) through the large volume recess (22) and through the hole (8) of the water separator (5).

The advantages of this design are: a) small friction losses during the transfer of water to the filling and emptying of the safety tank (9); and b) draining the safety tank (9) by 70% even if the device is not in a horizontal position offers greater drainage of the residual water of the safety tank (9), thus providing a longer overflow time than the lip (20) and thus greater safety of the device operation.

This resolves the second problem of the current state of the art, which was mentioned in the introduction.

Design to prevent the formation of cylindrical water film.

The design comprises a peripheral domed surface (21) at the bottom of the base of the safety tank (10) about the lower end of the water flow guide (11). Below is the overflow lip (20) with curved edges (24). The projection of the external dimensions of the overflow lip (20) is located on the curved parts of the dome (21). This prevents the formation of a cylindrical-shaped water film due to the lack of fixed contact points on the curved portions (21). In addition, the overflow lip (20) is located above the inclined surface (23) which facilitates the rapid removal of the waste gray water through the opening (7) which is another level of safety to avoid the formation of water film and to minimize the possibility of drifting stagnated grey water from the area around the overflow lip (20) to the clean water circuit, when immediately after use of the water, the water flows freely. This design solves the third problem of the current state of the art, mentioned in the introduction.

Water flow guide (11) and through hole (15) of the water inlet of the safety tank shell (3).

The design of the water flow guide (11) and the through hole (15) of the water inlet of the safety tank shell (3) provides the following advantages: a) prevents the formation of a water film on the lips (12) (13) due to the large inclined perimeter opening between the lips (12) (13) and due to the lip’s design. Thus the safety tank safely breathes and quickly empties when needed, (b) creates a slight vacuum in the safety tank area, due to the design of the lips (12) (13), during the rapid flow of tap water passing through the lips (12) (13), resulting to faster filling of the safety tank (9), (c) does not allow gray water to run into the safety tank (9) during use, due to the design of the lips (12) (13), (d) The internal slope of the water flow guide (11) and the large diameter of the through hole (15) of the water inlet, allow water from the tap to enter the device even if the water column from the tap is highly inclined, e) increases efficiency due to the water savings from the overflow of the tank. The latter occurs when the tap water runs freely for a long time and the water level in the safety tank reaches the lip (12) and overflows. Overflowing water is drifted from the water stream that flows with momentum and enters the clean water collection circuit.

The water flow guide (11) together with the through-hole (15) of the water inlet of the safety tank shell (3) solve the fourth problem of the current state of the art, mentioned in the introduction and adds over many features.

Device’s design

As shown in Drawing 2, the base (1), the water separator (5), the tank base (10), the safety tank housing (3) and the water switch (17) are designed in such a way that industrial large-scale production at low cost of production. This solves the fifth problem of the current state of the art, which was mentioned in the introduction.

Description of the operation of the collector of wasted clean water and the safe method that is performed by it to collect only purely wasted clean water.

Drawing 1 illustrates the collector of wasted clean water.

Its’ function is illustrated in drawing 3.

By opening the tap and having a free flow of water, the method is performed with the following steps:

I. The water enters the device from the inlet (15). II. Passes through the lips (13) (12).

III. Crosses the water flow guide (11).

IV. A slight vacuum is created in the tank (9) caused by the rapid flow of water through the lips (12) and (13).

V. The water with the energy containing is filling the pipe (6), the pipe (16) reaches the water flow switch (17) and there is a small water outflow from the hole (18).

VI. There is a slight loss of water flow from the overflow lip (20) flowing from the inclined surface (23) and the opening (7) to the sink drainage.

VII. The tank (9) begins to fill through the hole (8) and the opening (22) due to the pressure created in the two pipes (6) and (16), assisted by the vacuum caused by the rapid flow of water from the lips (12) and (13).

VIII. The water path continues into the pipe (19) and flows out of its end.

IX. The water outflow from the hole (18) is stopped and air is entering from the same hole drifting in the form of bubbles from the water flowing into the tube (19).

X. The flow of water in the pipes (6) and (16) is facilitated by the suction carried out by part of the vacuum created by the water flow in the pipe (19).

XI. The loss of water from the overflow lip (20) is reduced.

XII. The tank (9) is filled.

XIII. The water runs freely in a clean water collection tank from the end of the pipe (19).

When the user puts his hands under the water tap to clean his hands, the process of the method continues with the following steps:

XIV. The water column running from the tap to the inlet (15) is interrupted and th e gray wate r sta rts to fall.

XV. The most of gray water runs scattered on the device, and what enters through the inlet (15) of the device does not have enough energy to continue to press the water in the two pipes (6) and (16).

XVI. The water in the pipe (6), the pipe (16), the water flow switch (17) and the pipe (19) is interrupted at the point where the hole (18) of the water flow switch (17) is.

XVII. The water in the pipe (19) goes through the introduction of air from the hole (18) and due to gravity in a clean water collection tank.

XVIII. Due to lack of pressure at the inlet of the pipe (6) and with gravity, the water in the pipe (16) returns rapidly and overflows from the lip (20) drifting the water in pipe (6).

XIX. During the first seconds of the usage, the first and biggest in volume dirty water drains quickly through the sloped surface (23) and opening (7) to the drain of the sink. XX. The tank (9) begins to discharge through the opening (22) and the hole (8) due to the lack of pressure on the two pipes (6) (16) with parallel intake of abundant amount of air entering the tank from the lips (12) (13).

XXI. The missing water is added to the siphon, created in the pipe (6) and in the part of the pipe (16) which is drifted due to the velocity of the water returning from the two pipes (16) (6).

XXII. An overflow from the lip (20) is created for a long time.

XXIII. The gray falling water is discharged through the inclined surface (23) and the opening (7) into the sink drain.

The operation and design of the collector of wasted clean water allows the outlet drained clean water to flow to the sink valve instead of being led to the edges of the sinks. This is achieved when the pipes (16) (19) and the water flow switch (17) (drawings 2,3) through the internal surface of the sinks to extract the collected clean water from the sinks edges, pass through the tank (9) (drawings 5,7) and which are divided to be ready for manufacture. The outlet of the collected clean water is drawn to the sink valve from the pipe outlet (19) and through the opening (53) (Drawing 5). The change of position of the above-mentioned components does not change their operation and the collector of wasted clean water retains all its operating characteristics as already described.

The collector of wasted clean water with the outlet of the clean collected water to the sink valve, drawings 4,5 on the bottom bears bearing transverse cylindrical support (37) (drawings 4,7) for connecting it to a newly designed sink valve, (drawing 6), which allows the passage of clean collected water from the inside without this water to come into contact with the gray water drained from the sink through the same valve.

Drawing 7 shows the path of clean collected water as well as the path of gray water through the newly designed sink valve. The clean collected water collected by the collector of wasted clean water, with the outlet of the collected clean water to the sink valve is led through the recess (25) of the main body of the valve and the pipe (32) to a clean water collection tank. The gray water from the tap water enters the sink valve from the lip (26) and exits to the drain from the remaining empty space (27) of the valve.

The sink valve as illustrated in Drawings 6,7 consists of:

I. From the main body (29) of the sink valve.

II. From a sealing ring (30).

III. From the plug (31) which is placed on the lip (28) when removing the wasted clean water collector with the outlet of the collected clean water from the sink valve. So, the sink can be used without gray water entering the clean water collection circuit. IV. From the clean water collection pipe (32) from the sink valve.

V. By clamping nut (33) of the valve in the sink.

This way of extracting the collected clean water through the sink valve is intended to serve consumers’ needs that prefer the output of the collected clean water to be invisible.

Description of indicative applications for collecting and managing clean collected water with the Collector of Wasted Clean Water and the clean waste water collector with outlet of the collected clean water to the sink valve.

1) Simple application of the collected clean water by the user himself.

Drawing 8 illustrates the Collector of Wasted Clean Water in a bathroom sink, and Drawing 9 illustrates the clean waste water collector with outlet of the collected clean water to the sink valve in a bathroom sink. The collection of pure collected water is made in a simple vessel for use in uses such as e.g. cleaning of the toilet, house cleaning, watering etc.

2) Applications with self-contained water management systems.

Drawing 10 illustrates a layout consisting of:

I. Waste clean water collector.

II. A pipe (35) for transferring the collected clean water to the tank (36).

III. A tank (36) equipped with floater for overflow protection.

IV. A pipe (43) for transporting the stored water of the tank (36) into the toilet flush.

V. Vacuum pump (41).

VI. Non-return valve (40).

VII. Floater (38).

VIII. Inlet pipe of tap water (39).

Layout function.

The Collector of Wasted Clean Water collects the clean water that is led through the pipe (35) into the tank (36).

Emptying the toilet flush, the floater (38) opens and water from the water supply can be entered via the pipe (39) and the non-return valve (40). The water passes through the open floater (38) through the vacuum pump (41) and flows into the toilet flush from the outlet (42) of the vacuum pump (41). Vacuum is created in the vacuum pump (41) and the collected fresh water collected from the tank (36) is sucked through the pipe (43). The non-return valve (40) has the role of ensuring that water from the tank (36) does not enter the water supply system in the event of a water supply cut off by the water company and the vacuum build-up in the pipes due to the water level of the water supply network.

In case the clean water collection tank (36) is empty, the toilet flush fills only from the water supply system.

Drawing 11 shows a layout of a clean water collector with outlet of the collected clean water to the sink valve together with a sink valve operating in the same manner as the arrangement in Fig. 10.

Drawing 12 illustrates a layout comprising:

I. Collector of Wasted Clean Water with outlet of collected clean water to the sink valve together with sink valve.

II. A pipe (45) for transferring the collected water to the tank (46).

III. Tank (46) with a water inlet pipe from the water supply network together with a non-return valve (47). The tank (46) has an internal level floater for the incoming network water so that there is always a quantity of water from the water supply network that can fully fill the toilet flush (48) and a water level floater for the collected clean water for safety of the tank (46) from overflow.

IV. A water transfer pump (49) ensuring the transfer of the necessary amount of water from the tank (46) to the toilet flush (48).

V. A computing unit (50) which receives information from leveling electrodes located inside the toilet flush (48).

VI. A pipe (51) for transferring the collected water to the toilet flush (48).

VII. Water level electrodes located inside the toilet flush (48).

VIII. Electrical conductors (52) of water level electrodes.

Layout function.

Emptying the toilet flush (48) the water level in the toilet flush begins to descend, the leveling electrodes within the toilet flush sense the difference in level and command via the computing unit (50) to the pump (49) to send the corresponding amount of water with the one that has been consumed.

3) Applications resulting from centralized collection of clean collected water or in conjunction with gray or rain water purification systems in the final stage of cleaning gray or rainwater.

Drawing 13 illustrates a layout comprising:

I. Vertical installation of bathroom sinks equipped with Collectors of Wasted

Clean Water with outlet of the collected clean water to the sink valve together with a sink valve. II. Clean collection tank (55).

Layout function.

A common column (54) is used to drive clean water collected in the tank (55).

In the case of cooperation with central gray water purification systems after the treatment of gray water, the resulting clean water is stored in the stored tank (55) where the clean water from the wastewater collectors is also stored, thus saving energy because a significant part of the savings Water (that from the taps) does not have to go through a cleaning process because it is already clean. The same happens in case of rainwater collection.