Device and method for metering water
The device addresses inefficiencies in water management by using recycled plastic and solar power for cost-effective water conveyance and storage, enhancing rainwater utilization and groundwater replenishment.
Patent Information
- Application Number
- PCT/DE2025/150010
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-07-24
- Filing Date
- 2025-07-03
- Publication Date
- 2026-01-29
AI Technical Summary
Existing water management systems are costly and inefficient, often requiring pumps, control systems, and generate plastic waste, while rainwater, a valuable resource, is underutilized.
A device comprising upper and lower plates with integrated pipe/channel systems, a corrugated cover, and a water reservoir, using recycled plastic and solar power for cost-effective water conveyance, storage, and regulation, with features like water shut-off valves and cooling/heating elements.
Facilitates efficient water collection, storage, and distribution, reducing plastic waste and energy costs, while replenishing groundwater and providing flexible, eco-friendly water management solutions.
Smart Images

Figure DE2025150010_29012026_PF_FP_ABST
Abstract
Description
[0001] Title: Device and method for water dosing
[0002] The invention relates to a device and a method for water dosing.
[0003] Water is becoming increasingly scarce, and its consumption and use require careful planning and management. While water itself is considered fully recyclable, it still involves costs and effort that can be at least partially avoided. For example, a great deal of rainwater is channeled unused into sewers or evaporates on sealed surfaces. Even its seepage into the ground is hindered by construction projects. Rainwater is rarely used, yet it can prove to be an ideal substitute for water in certain situations. Plants, for instance, prefer soft rainwater to the often hard tap water.There are other uses for rainwater, which we won't go into in detail here. While there are already some well-designed storage and utilization options, these require a pump, a control system, a backflow preventer, a pipe with a suction line, an inlet, a filter, an overflow siphon, etc. This list alone demonstrates the cost of such measures. On the other hand, there is also "waste," especially the undesirable plastic waste, which damages the environment and doesn't decompose naturally. Plastic waste simply doesn't rot.
[0004] The object of the present invention is therefore to provide a system that is as cost-effective as possible and serves for dosing, storing and conveying water.
[0005] This task is accomplished by a device for conveying, metering, and storing water, characterized in that the device comprises at least one upper plate and one lower plate, wherein the upper plate is traversed by a vertically extending pipe / channel system and has a horizontally lying grid module, and is provided with a corrugated cover that guides the water to the pipe / channel system, and the lower plate, in addition to the vertically extending pipe / channel system, also has a horizontally extending pipe / channel system and a horizontally lying grid module, and the pipe / channel system is connected to a water reservoir. The water, in particular rainwater, is transported to the inlet and from there guided into the pipe / channel system.The surface of the upper panel is a corrugated cover, its wave pattern designed to direct rainwater to the pipe and drainage system. The water simply follows a sloping path. The inlet and the pipe / drain system can be funnel-shaped to quickly collect larger quantities of water and then convey it to its destination. The pipe / drain system collects the water and carries it to the desired location. The water can be drawn directly from a downpipe, or it can be channeled to the inlet via any other structure. The impermeable panels can also be arranged to create a gradient, directing the water to the inlet. Once the water enters the inlet, it is channeled to the desired location.Such a location can be a storage space, for example a cistern or a container, or in special cases even a cavity in a wall. It can also be a garden bed, a field, or something similar – in other words, a place where water is consumed.
[0006] In a further embodiment of the present invention, the at least one plate has a cooling system, which is preferably powered by a solar panel. This cooling device prevents water evaporation and, due to its solar-powered energy supply, is also resource-efficient. Another very important aspect is the impermeability of the plates to water. They thus also serve as a water barrier. The water can therefore be diverted away from unusable water sinks to storage facilities and supply points, and can also be used to raise the groundwater level.
[0007] The corrugated cover can also be made of foil, which can be colored and printed with attractive designs. The foil is stretched over the top plate and connected to the edges of the upper part of the duct and pipe system. These are therefore also non-slip printed covers. The two plates are, of course, connected to ensure that the pipe and duct system is not impaired. This connection can be achieved using an angled insertion system, brackets, or similar devices.
[0008] In a particularly specific embodiment of the invention, the panels are manufactured from recycled plastic. The granules used for this purpose are obtained from waste plastic and can be reinforced by incorporating foreign material. The piping / duct system is then also integrated into the panels during the manufacturing process. Different qualities of recycled plastic panels are used for this purpose; for example, the waste plastic obtained from (plastic) bottles is particularly durable. Recycled PET (polyethylene terephthalate) from plastic bottles is known for its strength, resistance to weathering, and its ability to retain colors and prints well. It is well-suited for applications requiring high strength and durability. It is used, for example, in roofing materials and is very suitable for our intended purpose.
[0009] Recycled HDPE (High Density Polyethylene): HDPE is a versatile plastic often made from recycled milk cans, shampoo bottles, and other containers. It is characterized by its durability, chemical resistance, and weather resistance, making it well-suited for outdoor use. It can be used for the additional components described later.
[0010] Recycled polyvinyl chloride (PVC) also presents a good option, particularly for applications requiring flexibility and water resistance. It is robust, weatherproof, and can be manufactured in various colors and styles. This is interesting because the aesthetic aspect is also essential for the present invention and its accessories.
[0011] These recyclable plastics offer a good combination of quality, durability, and environmental friendliness, making them well-suited for high-quality applications such as the roofing material of a tent-like structure. However, it is important to ensure that the recycled material comes from trusted sources and meets the relevant quality standards to guarantee the desired performance.
[0012] The basic principles of producing the granules from the aforementioned (waste) plastic are already known in the prior art.
[0013] The procedure basically works as follows:
[0014] 1. Collection and Sorting: The waste plastic is first collected and then sorted by plastic type. This step is crucial because different types of plastic have different properties and are not always easily recyclable together. Furthermore, the recycled material must meet specific requirements. Collecting the material reduces the environmental impact, at least to some extent. Ideally, the waste plastic is delivered pre-sorted from industry, households, and commercial establishments. This prevents the plastic from entering the waste stream. However, it should also be retrieved from landfills and the ocean.
[0015] 2. Shredding: The sorted waste plastic must now be shredded and ground. 3. Cleaning: After shredding, the waste plastic is often cleaned to remove contaminants such as dirt, labels, adhesive residue, or other debris. This can be done by washing, sieving, or other cleaning methods.
[0016] 4. Melting and extrusion: The cleaned and shredded waste plastic is then melted in a melt extrusion process and forced through an extrusion die to form continuous strands or blocks.
[0017] 5. Granulation: The extruded strands or blocks are then cut into smaller granules. This can be done either by cutting with knives or by using special granulating machines.
[0018] 6. Cooling and drying: The manufactured granules may need to be cooled and dried to remove moisture and ensure they are stable and do not stick together.
[0019] 7. Quality control and sorting: The finished granules are checked for quality and purity. They can also be sorted by plastic type to ensure they are suitable for specific applications.
[0020] Although this is only a rough overview of the process of producing granules from recycled plastic, and it should be noted that specific procedures and technologies may vary depending on the properties of the recycled plastic and the requirements of the final product, it is surprising to see that the production costs of recycled material do not differ significantly from those of "new" material.
[0021] In a particularly specific embodiment of the present invention, the individual panels can be connected to one another. For this purpose, the pipe / duct systems must be arranged within the panels in such a way that a connection between the pipe / duct systems is established. The system is thus extended and can serve areas of any size.
[0022] The pipe and channel system can transport water in any direction by cleverly joining the individual plates.
[0023] In addition to the plate system, another embodiment is designed such that the pipe and duct system is equipped with water shut-off valves, allowing individual pipes to be opened or closed to regulate water flow. This enables even more precise water regulation. In a specific case, these water shut-off valves can be controlled via a radio link or some type of remote control, allowing them to be opened and closed. Partial opening or closing of the valves is also possible to increase or limit the water flow. Thus, stepless control of the water flow is possible.
[0024] In a further embodiment of the invention, the device, and in particular the plate, has not only a cooling element but also a heating element, so that adjacent beds can be protected from frost damage. A tent-like roof helps to retain the heat in place. It thus serves as a winter tent. Sieves at the water inlets and outlets ensure clean water transport.
[0025] In a particularly specific embodiment of the present invention, the waterproof panels are arranged to form cavities. Water can flow, cool, and be stored within these cavities. The cavity panels can form walls and partitions, thus increasing the storage capacity for water many times over, with the water additionally providing cooling, insulation, and other functions.
[0026] These slabs can be used in their original form and of course also with the cavities as walls, partitions, seating blocks and benches and the like.
[0027] As mentioned above and explained in more detail in the illustrations, the devices according to the invention can be used in horticulture, field irrigation, and parks. In another embodiment, graves can also be easily constructed from these panels, with a clever design facilitating grave maintenance. This clever design is evident, among other things, in the size of the reservoirs. While fields and lawns can absorb and store larger quantities of rainwater, gardens and graves are sensitive to flooding. In this case, the water reservoirs must have larger capacities. The water is then supplied in portions as needed. Computer programs and apps already exist that assist gardeners with pre-cultivation, sowing, fertilization, and similar tasks. Irrigation planners are also known.Features for planning and managing irrigation based on plant needs and weather conditions are available. Integration with sensors that measure soil moisture is even offered. These apps ensure economically efficient water use.
[0028] The following section uses figures and examples to illustrate the arrangement of the individual components relative to one another and the functionality of the invention in a specific embodiment. This should not be understood as limiting; it represents only one possible embodiment of the invention.
[0029] Figure 1, schematic representation of the upper plate
[0030] Figure 2, schematic representation of the lower plate
[0031] Figure 3, schematic representation of the plates with attached water consumer
[0032] Figure 4, schematic representation of joined plates with an overlapping pipe and duct system
[0033] Reference symbol list:
[0034] I upper plate,
[0035] 2a — 2d vertically running pipeline and duct system,
[0036] 3. Rain gutter, water drainage,
[0037] 4 grid modules,
[0038] 5a — 5d vertically running pipeline and duct system,
[0039] 6 lower plate,
[0040] 7 horizontally running channel piping system, cooling system
[0041] 8a — 8d memory ,
[0042] 9 grid module,
[0043] 10 beds,
[0044] II tent-like roofing
[0045] 12 Mounting device for the tent-like roof
[0046] 13 Bench made from recycled plastic
[0047] Figure 1, schematic representation of the upper plate, the upper view shows the plate in a side section, the lower representation shows the plate seen from above, i.e. a top view.
[0048] Figure 1 schematically shows the upper plate 1, which is traversed by a vertically running pipe and duct system 2a-2d. The upper cover forms a type of rain gutter 3. The rain gutter 3 is inclined in the direction of water transport, so that the water is directed either to the flower bed (or to another water consumer) or to the pipes 2a-2d, which are shown in this figure as a funnel (funnel-shaped opening). If a foil is designed as the rain gutter 3, the required incline and the path to the inlet of the pipe and duct system 2a-2d can be achieved by a covering as described below; the foil is attached at a distance above the inlet of the pipe and duct system 2a-2d and connected to the edges of the inlet of the pipe and duct system 2a-2d. This ensures a slope towards the respective inlets of the pipeline-channel system 2a - 2d.This is clearly visible in the figure; the rain gutter touches the edges of the inlet of the pipeline / channel system.
[0049] The upper plate 1 itself is stabilized by a horizontally oriented grid module 4. This is embedded in plate 1. The horizontally oriented grid module 4 can be made of any material that can fulfill the stabilizing function. Bamboo is a good choice, as this renewable resource is stable and elastic, and it also stores carbon dioxide. Of course, a steel or iron grid can also be embedded in the plastic. For this, the grid simply needs to be embedded in the still-soft plastic mass during the manufacturing process of the plate.
[0050] Figure 1 clearly shows, among other things, the plate-shaped part of the device for conveying and metering water. The plate itself is impermeable to water except for the water inlets. It is made of recycled plastic and, if necessary, reinforced with other materials, in one case the grid module, or otherwise adapted to its specific function. For example, a metal grid embedded in the plate can stabilize it. The water inlets, which receive the water, are located in the plate. They are protected from the ingress of suspended solids or other coarse particles by a sieve, which could clog the water transport lines.
[0051] Figure 2 clearly shows the lower plate 6, which is also traversed by a vertical pipe and duct system 5a-5d. This pipe and duct system 5a-5d carries water to the storage tanks 8a-8d below, where it is stored for later use. However, some of the water is also directed into the horizontal pipe and duct system 7, where it is used to cool or heat the upper plate 1. The energy required for cooling / heating can be provided by solar panels. These can be integrated into the plates and supply the electricity that powers the cooling or heating elements.
[0052] The lower plate 6 itself is stabilized by a horizontally oriented grid module 9. This is embedded in the plate 6. The storage tanks are not visible from this perspective. In Figures 1 and 2, the inlets for the pipe / channel system are arranged in the center of the respective plates. This is not mandatory; they can also be distributed across the plate. It is only necessary to ensure that the water can enter and be absorbed by the pipe / channel system. Naturally, the inlet sizes and pipe sizes will need to be adjusted accordingly.
[0053] The water transport pipes are designed either as tubular pipes, meaning the entire pipe is embedded within the slab, or as open channels, meaning they are open at the top. Both pipes and channels lead to a water outlet, which carries the water to its intended location. This could be a cistern, a (water) storage tank, a garden bed, a field, or similar. The channels and pipes are equipped with water shut-off valves. This allows the water flow to be controlled continuously, from a complete shut-off (closing the valve) through partial flow to a fully open pipe. This control can be remote and even automated via an app.
[0054] Figure 3 shows a schematic representation of the panels with an attached water consumer, illustrating how the panels fit into a garden area, i.e. a flower bed with a tent-shaped roof.
[0055] The device 1, 6 according to the invention is shown on the left in the image. The arrows indicate the direction of water flow. It can fill the water reservoirs on the one hand, and also irrigate the bed 10 on the other. The tent-like roof 11 can be extended and retracted as needed. For this purpose, fixings are embedded in the ground, which can accommodate the receiving device 12 for the tent-like roof 11. The tent-like roof 11 serves as a heat reservoir and protection against evaporation. However, it will remain in its receiving device for most of the summer.
[0056] The roof can be constructed from a robust frame made of lightweight yet durable materials such as aluminum, steel, or bamboo. This frame forms the basic structure of the roof and provides the necessary stability.
[0057] The roof material could be made of weatherproof fabric such as polyester or PVC, offering UV protection and waterproofing. It is designed to stretch over the frame, creating a sheltered environment under the tent. It can also be made from recyclable materials. A variety of weatherproof fabrics already exist that are made from recycled materials such as recycled polyester or recycled PVC.
[0058] Recycled polyester is often made from used plastic bottles and can be an excellent choice for roofing material. It is durable, weather-resistant, and available in various colors and styles.
[0059] Recycled PVC is also made from recycled PVC material and offers similar properties to conventional PVC, including weather resistance and durability. It is a more environmentally friendly option compared to virgin PVC, as it reduces raw material consumption and the amount of waste.
[0060] By using recyclable materials for the roof of a tent-like shelter, you can not only create a robust and weatherproof structure, but also contribute to environmental protection by reducing the use of new raw materials and minimizing waste.
[0061] The folding mechanism, which is part of the mounting device 12, is integrated into the ground and allows the tent roof to be opened or closed quickly and easily as needed. This mechanism can be operated by hydraulic or mechanical systems and offers a reliable and simple way to operate the tent. The necessary energy can be obtained from the solar cells.
[0062] When the tent roof is folded down, it disappears completely into the ground, saving space and providing an aesthetically pleasing appearance. This is particularly useful for locations where permanent shelter is not desired or where the tent is only needed occasionally.
[0063] Additionally, side panels or curtains can be added to further screen the space and provide privacy or extra protection from wind and rain. The side panels also serve as bed borders and can consist of a pole system, with bamboo being a suitable material option.
[0064] A tent-like shelter without a rigid frame is also possible. In this case, the shelter is made of a flexible and durable fabric such as PVC or canvas. This material forms both the roof and the side walls of the shelter. Instead of a rigid frame, the shelter's structure is supported by anchor points on the ground or adjacent structures. These anchor points can be stakes, poles, ropes, or other suitable fastening methods. To erect the tent roof, the edges of the material are pulled taut using ropes or tensioning devices and attached to the anchor points. This creates a structured shape that gives the tent stability and protects it from wind and other weather conditions.
[0065] The advantage of such a frameless design lies in its flexibility and mobility. It is easier to pitch and take down than a tent with a rigid frame and can be more easily adapted to different terrain and space requirements. However, it may not offer the same structural stability as a frame tent and may be less suitable for long-term use or extreme weather conditions.
[0066] If it is not possible to drain the stored water into the flower bed using gravity, pumps will take over this task. These, like the lighting fixtures, are powered by solar energy.
[0067] Benches and other seating made from recycled plastic can be placed around the flowerbeds in the garden. This plastic does not need to be of the same high quality as the sheet material.
[0068] Figure 4 shows a schematic representation of joined panels with an overarching pipe and channel system. A module is clearly visible on the left, comprising the upper panel 1 and a lower panel 6. The pipe and channel system 2a is visible, as is its continuation into the pipe and channel system of the lower panel 6. There, the rainwater is distributed into storage tank 8a or 8b. However, rainwater is also directed into the horizontally running pipe and channel system 7, which is connected to an adjacent panel system. This horizontal pipe and channel system 7 carries the rainwater to further storage tank 8e or to an adjacent planting bed. Here, water barriers and diversions are advantageous, opening or closing channels and water inlets to prevent the planting bed from flooding.
[0069] Motivation and design of the invention.
[0070] Water is essential for life and, unfortunately, is becoming increasingly scarce. The motivation for developing this invention is a document published as the papal encyclical "Fratelli Tutti" of October 4, 2020, from the Vatican, entitled "Globalization and Progress Without a Common Course." Here is an excerpt from ABS. 29:
[0071] We further affirm that the severe political crises, injustice, and lack of a fair distribution of natural resources (...) are causing further victims and deadly crises affecting multiple countries, which can erode the wealth and resources of future generations. The international silence in the face of these crises, which are leaving millions of children emaciated and starving due to poverty and malnutrition, is unacceptable.
[0072] Pope Francis and Grand Imam Ahmad Al-Tayyeb jointly authored this statement and other statements.
[0073] Technology is constantly advancing, but (quote) "how wonderful it would be if the increase in innovations in science and technology were accompanied by ever greater equality and social inclusion! How wonderful it would be if, just as we discovered new planets, we rediscovered the needs of our brother and sister who revolve around us."
[0074] These statements motivate the patenting of cost-effective innovations. If something costs nothing, then there's no need to pay for it. The revenue should then be invested in identifying a need in order to improve and positively change the situation. Sunshine, rain, and climate processes are free. The development of this invention was initiated in the spirit of "fraternal love" and is intended to help over 1.3 billion people improve their current situation.
[0075] The core idea of my overall concept is a form of eliminating a fundamental problem, thus offering a solution. It is hoped that this core idea will therefore represent an innovation. The application of these ideas will ensure proof of their feasibility.
[0076] Should the inventions generate revenue, it will be used as follows:
[0077] All proceeds are used 100% for the construction of hospitals, clinics, schools and drinking water reservoirs.
[0078] The funds required for the production of the equipment are solely for material and manufacturing costs. No profits will be made in production and assembly work, thus hindering the implementation of the patented ideas. This manufacturing system will be part of an implementation plan and represents the step from "honorable merchant" principles to the cross-border use of the patented ideas.
[0079] This means that the revenue from this patent idea will ensure the construction and operation of hospitals, ambulances in particularly critical areas, schools and the drinking water supply every month.
[0080] Over a 10-year period, infant mortality due to malnutrition and disease-related deaths would be at the European level. Medical care, including the provision of medication, would then be guaranteed.
[0081] The invention, through its inventive device for watering lawns, flowerbeds, or similar areas, creates a new, ecologically sound art form. This invention helps nature preserve plants and improve groundwater levels, because water is a vital resource that will need to be valued differently in the future. According to the climate protocol, large rural areas in Germany have already been reported to have very low groundwater levels. This inventive system makes it possible to effectively replenish the groundwater with rainwater.
[0082] The additional features add another possible use.
[0083] Currently, gardens are only beautified with lawns, stones, and paving slabs. Apart from trees and borders, this design offers little ecological benefit. Lawns require maintenance, which consumes energy. To make the lawn grow, fertilizers (chemicals) are used. These chemicals, like the fertilizers themselves, leach into the groundwater / soil as particles. The damage caused by this form of beautification will lead to future harm to nature and human health. This should be avoided.
[0084] Lawns require a particularly large amount of water during the summer months. State governments are already prohibiting the watering of lawns during the hot months. Climate researchers argue that groundwater needs to be recognized as a vital habitat under current legal regulations. This is already protected as a habitat, for example, in surface waters (lakes, etc.).
[0085] The new system uses a water reservoir to supply water to the plants only when needed. The reservoir fills up with rainfall. Any excess water not immediately required is released as clean rainwater into the groundwater.
[0086] Hopefully, a new kind of "communication center" will emerge in the front gardens. A seating area showcasing "art" and artfully integrating nature will thus become a "zone" that encourages conversation with passersby. Those interested in "art" will enjoy talking to each other. Loneliness is also a "new ailment" in society, which this invention and its design aim to combat.
[0087] Conclusion:
[0088] Bees don't need a lawn, just a flowering flower bed and healthy trees.
[0089] And the energy transition can be achieved more quickly with new ideas. This invention offers the possibility of transforming the lawn of a park into a work of art.
[0090] To stage historical figures surrounded by flowers while channeling rainwater into the groundwater is a new form of art with ecological aspirations.
[0091] The larger the area that is required, the larger the water storage tank can be.
Claims
Patent claims 1. Device for conveying, dosing and storing water, characterized in that the device has at least one upper plate and one lower plate, wherein • the upper plate is traversed by a vertically running pipe / channel system, and has a horizontally lying grid module, and is provided with a corrugated cover which directs the water to the pipe and channel system and • the lower plate, in addition to the vertically running pipe and channel system, also has a horizontally running pipe and channel system, as well as a horizontally lying grid module and • the pipeline and sewer system is connected to water storage.
2. Device according to the first claim, characterized in that the plates consist partly of recycled plastic, preferably recycled plastic from plastic bottles.
3. Device according to the first claim, characterized in that the device has a cooling / heating device.
4. Device according to the preceding claim, characterized in that the cooling is supplied with energy via a solar cell.
5. Device according to one of the preceding claims, characterized in that the plates are arranged so that they can be joined together and the piping / duct system can be extended.
6. Device according to one of the preceding claims, characterized in that the plates are arranged in such a way that the pipe duct system is provided with water barriers so that individual pipes can be opened or closed for the flow of water.
7. Device according to one of the preceding claims, characterized in that the water-impermeable plates form cavities or have cavities in which water can be stored.
8. Device according to claim 7, characterized in that cavities formed from the water-impermeable plates are designed and used as walls and masonry.
9. Water supply system, characterized in that at least one device according to one of claims 1 to 8 is used.
Citation Information
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