Patent Publication Number: US-2005115149-A1

Title: Device for adjusting water level

Description:
BACKGROUND OF THE INVENTION  
      1. Field of the Invention  
      This invention relates, in general, to a water level regulator for adjusting water level, a water-level-adjustable receiver or catcher, and a water-level-adjustable planter, and methods for their use.  
      2. Description of Related Art  
      There is an example of a water level regulator, such as the one found in the Official Report No. 8-500974. The device includes of the first flow controller which adjusts inflow of water to container by using a float, the second controller which adjusts flow of air to the first controller room by using a float, and the ventilation device which allows air flow into the first flow controller room. When the water level in the container falls below a prescribed position, water is permitted to flow in, giving suitable amount of water for the growth of the plant.  
      The past water level regulator includes of the first and the second flow controllers each of which must be encased individually. Such system could become too large in size.  
      What is needed is a water level regulator, water catcher and planter that are compact in size and overcome the above and other disadvantages of known or past water level regulators.  
     SUMMARY OF THE INVENTION  
      In summary, one aspect of the present invention is directed to a devise including a case, a first float and a second float.  
      The side surface and the upper surface of the case is shut to the airtight condition and the bottom side is kept open, which has a water filling port, an air vent hole and there is an air inlet at the lower part of the side surface.  
      The first float, which is installed in the upper part of the case, has the air ventilation plug, through which the first float moves up and down by the buoyancy of the water and its own weight. When the water level in the case exceeds the first prescribed water level; the air ventilation plug releases the air vent hole. If the water level falls below the first prescribed level, the ventilation plug shuts the vent hole.  
      The second float, which is installed inside the case, has the filling port plug through which the second float moves up and down by the buoyancy of the water and its own weight. When the water level in the case exceeds the second prescribed water level that is higher than the first water level, the filling port plug s the filling port. When the air inside the case is decompressed, the filling port plug keeps the filling port shut. When the water level is such that it allows the air inlet to lead to the atmosphere, the water filling port plug releases the water filling port. These are the features of the water level regulator.  
      The water level regulator, which concerns this invention, is installed at the bottom of the water catcher. The water filling port is connected to the water storage tank, which is positioned higher than the water filling port. The planter should be placed above the water catcher. If the water is less in the water catcher, the second float goes downward, the water filling port plug releases the water filling port. Therefore, the water is given to the inside of the case and the water accumulates. The water level goes up in the case; the buoyancy lifts the second float. When the water level exceeds the prescribed first water level, the buoyancy lifts the first float the air ventilation plug releases the vent hole. Therefore, it makes easier the water to enter the case. The water level exceeds the prescribed second water level, the water filling port plug to the second float shuts the water filling port. The water stops to enter to the water catcher from the water filling port.  
      The water level in the case gradually decreases because of the absorbing by the plant and the evaporation.  
      The water level become less than the first prescribed water level, the first float goes downward by its own weight and the air ventilation plug to the case will shut the vent hole. Therefore, in case the water level in the case lowers, the second float will not decline. Because the inside case is in decompressed condition, the water filling port plug keeps the water filling port shut. In the event that the air inlet is made to lead to the atmosphere when the water level falls further, the second float declines by its own weight and the water filling port plug will release the water filling port. Accordingly, the water enters to the case from the water filling port, and the water accumulates in the water catcher. Thereby, the level adjustment is made possible.  
      The device can be miniaturized because the case, the first float and the second float can easily separate this water level regulator.  
      The water level regulator, which concerns this invention, the case has the water filling port in the side of the body and the air vent hole in upper surface. The first float that is able to move vertically is located on the case. The second float that is able to move vertically is located inside the case. These are the favorable fact for this device.  
      The water-level-adjustable water catcher, which concerns this invention, includes of the main body of the water catcher and the water level regulator. Planter installation part is located on the upper surface of the water level regulator. The water level regulator is installed at the bottom inside the water catcher.  
      The water-level-adjustable water catcher, which concerns this invention, can be used by connecting the water filling port of the water level regulator to the water tank placed at a higher position. The planter is placed on the water catcher. The water level regulator supplied the water into the water catcher and adjusts the water level insides.  
      The water-level-adjustable water catcher, which concerns this invention, includes of the water catcher, water absorption mat and the water level regulator. The water catcher has a groove on the upper side. The water absorption mat is laid on top of the water catcher. There is a water suction part inside the water catcher, which is inserted through the groove. The water level regulator is placed inside at the bottom of the water catcher. These are the features of this device.  
      With this water-level-adjustable water catcher, the water filling port of the device is connected to the water tank set at a higher place. The planter is placed on the water absorption mat. The water level regulator supplies water into the water catcher and adjust the water level. The water absorption mat absorbs the water from the water catcher via the groove from the water inlet part. The plants will consume the water absorb through the water absorption mat.  
      The water-level-adjustable water catcher holds the flowerpot. The planter is placed on the water absorption mat, which is made of boded close. It is desirable to be laid on top of the water absorption mat. In this case, the flowerpot absorbs the water through the bottom part from the water absorption mat. The breathable flowerpot could absorb the air from the atmosphere.  
      The water-level-adjustable planter, which concerns this invention, it includes of its body and the water level regulator. The planter body has an installation part in the sidewall. It is the feature of this device that the water level regulator is located inside bottom of the planter body.  
      The water-level-adjustable planter, which concerns this invention, it can be installed on the building wall. The water filling port should be connected with the water tank at a higher position. The water level regulator will supply the water and also adjust water level inside the planter.  
      The water-level-adjustable planter, which concerns this invention, it includes of the water catcher, the sidewall. The top panel and previously described the water level regulator. The water catcher is water flow free and the partition is used to avoid penetrating the soil inside the device. The sidewall is located the surrounding area of the water catcher. The top panel is includes of hollow container installed the upper part of the sidewall.  
      The device includes of the water inlet in the upper part, the drainage in the side and the bottom part. There is a vertical penetrate hole for the plants located in the upper part of the one side of the pertained area. The water level regulator is placed at the bottom part of the water catcher in the other side of pertained area. The water filling port is connected to the drainage. These are the feature of this device.  
      This water-level-adjustable planter includes of the penetrate hole for the plant in one side, the soil is placed in the container enclosed with the sidewall and the partitions and place the plant. The plant will grow through the hole toward upward. The rainwater run through the water inlet and accumulates inside the device. The water inside of the top panel brought in from the drainage is supplied into the planter and adjust the water level. The partition is placed one side of the water level regulator separated by the water and soil. The water is for the plant to grow.  
      The water-level-adjustable planter, which concerns this invention, includes of the water catcher, the water absorption mat for adsorbing the water inside of the water catcher that is located on the water catcher, the root proof mat that is located on the water absorption mat, the drain layer that is located on the root proof mat, the water storage layer that is located on the drain layer, the seed(s) that is sown on the water storage layer, the sunshade mat that is covering the seed(s), and the water level regulator, described above that is located inside the water catcher. Theses are the feature of the planter. This water-level-adjustable planter is suitable for growing non-flowering plants.  
      The device for adjusting water level, water-level-adjustable receiver or catcher, and water-level-adjustable planter of the present invention have other features and advantages which will be apparent from or are set forth in more detail in the accompanying drawings, which are incorporated in and form a part of this specification, and the following Detailed Description of the Invention, which together serve to explain the principles of the present invention. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
       FIG. 1  shows the cross-section diagram of the implementation of the invention for the water-level-adjustable water catcher that indicates irrigation condition.  
       FIG. 2  shows the cross-section diagram of the water level regulator at the irrigation halting condition on  FIG. 1 .  
       FIG. 3  shows the cross-section diagram of the water level regulator at immediately before irrigation on  FIG. 1 .  
       FIG. 4  illustrates the perspective view diagram of the water level regulator on  FIG. 1 .  
       FIG. 5  illustrates the exploded perspective view diagram of the water level regulator on  FIG. 1 .  
       FIG. 6  illustrates the exploded cross-section diagram of the water level regulator on  FIG. 1 .  
       FIG. 7  illustrates the perspective view diagram of the water level regulator in operation on  FIG. 1 .  
       FIG. 8  illustrates the perspective view diagram of the implementation of the invention for the water-level-adjustable water catcher.  
       FIG. 9  illustrates the perspective view diagram of another implementation of the invention for the water-level-adjustable water catcher.  
       FIG. 10  illustrates the perspective view diagram of the other implementation of the invention for the water-level-adjustable water catcher.  
       FIG. 11  illustrates the cross-section diagram of the water-level-adjustable water catcher on  FIG. 10 .  
       FIG. 12  illustrates the cross-section diagram of the implementation of the invention for the water-level-adjustable planter.  
       FIG. 13  illustrates the cross-section diagram of another implementation of the invention for the water-level-adjustable planter.  
       FIG. 14  illustrates the cross-section diagram of the implementation of the invention for the water-level-adjustable planter. 
    
    
     DETAILED DESCRIPTION OF THE INVENTION  
      Reference will now be made in detail to the preferred embodiments of the invention, examples of which are illustrated in the accompanying drawings. While the invention will be described in conjunction with the preferred embodiments, it will be understood that they are not intended to limit the invention to those embodiments. On the contrary, the invention is intended to cover alternatives, modifications and equivalents, which may be included within the spirit and scope of the invention as defined by the appended claims.  
      The present invention has been described in Japanese Publication No. 2002-345342 published Dec. 3, 2002, the entire content of which publication is incorporated herein and affixed hereto as Appendix A. An English-language translation thereof is affixed hereto as Appendix B, the entire content of which translation is also incorporated herein.  
      FIGS.  1  to  9  illustrate one implementation of the invention. FIGS.  1  to  6  illustrate a water level regulator  1  including a case  10 , a first float  20  and a second float  30 . Case  10  integrates a cabinet part  11  and a container part  12 .  
      The side panel  13  upper surfaces  14  are closed airtight and the bottom panel  15  is open.  FIG. 5  illustrates the lever storage  12  is thinner in thickness and flatter than the cabinet part  11  without the bump. The case  10  has the water filling port  16  at the edge of the lever storage  12 . The case  10  has the air vent hole  17  on the upper surface of the cabinet part. FIGS.  1  to  3  show the case  10  has the inlet  18  extended along the lower side panel of lever storage  12 . The optimal height for the inlet  18  is 2-3 mm. The case  10  has the protruding part  19  at the lower section. The protruding part  19  is provided for the screw hole for fixation.  
      First float  20  integrates with the lever  21  and float portion  22 . The rotational lever  21  is installed at the upper protruding part on the cabinet part  11  at the spindle part  23 . The lever  21  holds the air ventilation plug  24  located in the lower air vent hole  17 . The air ventilation plug  24  is made of flexible material. The float portion  22  is built at the other-edge of the lever  21  and placed on the lever storage part. Inside the float portion  22  holds the weight  25 . The first float  20  is heavier than the second float  30 . The float portion  22  of the first float  20  moves around the axis  23  by the buoyancy and by its own weight. The first float makes a move when the water level in the case  10  exceeds the prescribed first water level of W 1  ( FIG. 3 ). The air ventilation plug  24  releases the air vent hole  17  when the float portion  22  goes upward by the buoyancy. The air ventilation plug  24  shuts the vent hole  17  when the water level is below the first water level W 1 .  
      Second float  30  integrates with lever  31  and the float portion  32 . The rotational lever  31  is installed on the lower edge of lever storage part  12  at the spindle part  33 . The lever  31  holds the water filling port plug  34  located in the edge of the water-filling hole  16 . The water-filling port plug  34  is made of flexible material. The float portion  32  is built on the other edge of lever  31  and placed in the cabinet part  11 . The lever  31  and the float portion  32  close airtight to the side and upper panel, and the bottom portion  36  is open. The float portion  32  of the first float  30  moves around the axis  33  by the buoyancy and by its own weight. The second float makes a move when the first water level W 1  ( FIG. 3 ) in the case  10  exceeds the prescribed second water level of W 2  ( FIG. 2 ).  
      Water filling port plug  34  shuts the water filling port  16  when the float portion  22  goes upward by the buoyancy. When the case  10  is in decompressed state, the water filling port plug  34  keeps the water filling port  16  closed. When the water level falls sufficiently to allow air inlet  18  to open to the atmosphere (i.e., falls substantially below the level of a third prescribed water level W 3 ), second float  30  drops thus causing water filling port plug  34  to release water filling port  16 .  
      Water level regulator  1  is located within a water catcher  41  (e.g., a water-catching basin) on a bottom surface of the water catcher. The water filling port of the device is connected with the flexible tube  37  to a water source such as a water tank set at a higher position ( FIG. 5 ). The water tank can be of any type of container as long as it can hold the water. The water filling port  16  has a protruding portion for fastening the flexible tube  37  so as to prevent disengaging of the tube or leaking of the water. The flexible tube  37  is fastened tightly to the water filling port  16  with the clasp  38 .  
      The planter is set in the water catcher. If the water level in the water catcher is low, the second float goes downward by its own weight and the water filling port plug  34  releases the water filling port  16 . Therefore, the water enters into the case  10  through the water filling port  16 . The water is pooled in the water catcher. As the water level in the water catcher rises, the second float goes upward by the buoyancy. However, the air inside the case  10  would not be able to escape because the air vent plug  24  shuts the air vent hole  17 . Consequently, the second float  30  does not go upward completely and the water filling port plug  34  is not able to shut the water filling port  16 .  
      When the water level exceeds the first prescribed water level W 1 , The second float  20  rises with a little delay to the first float  30 . The air ventilation plug releases the air vent hole  17  of the case  10 . The built up compressed air coming into the case  10  through the air inlet goes off and it makes easier for the water to enter into the case  10 . As the water level rises, the second float  30  raises more. When the water level exceeds the prescribed second water level W 2 , the second float  30  hits the roof panel of the case  10  and stops rising. At this time, the water filling port plug  34  of the second float  30  shuts the water filling port  16 . The water stops flowing into the water catcher through the water filling port  16 .  
      As the water stops flowing into the water catcher, the water inside the catcher starts to diminish due to capillary action of the plant roots touching the soil and evaporation. The water level in the case  10  gradually decreases. When the water level falls below the prescribed first water level W 1 , The first float  20  comes down by its own weight. The air ventilation plug  24  shuts the air vent hole  17  of the case  10 . Therefore, even the water level in the case  10  falls, the case  10  becomes decompressed, keeping the second float  30  from coming down by its own weight. Thus the water filling port plug  34  keeps the water filling port  11  shut. The water level keeps falling and reaches the air inlet  18 . This time, the water level is only 2-3 mm depth from the bottom of the water catcher. If the air inlet  18  lead to the atmosphere, the air gushes into the case  10  through the inlet  18  causing the second float  30  to come down by its own weight and the water filling port plug  34  release the water filling port  16 . Once again, the water enters into the case  10  through the water filling port  16  and the water starts pooling. The water level is adjusted by repeating this operation.  
      The repetition of upward and downward movement of the water level is ideal for growing plants. The soil receives constant supply of water and air interchangeably, which activates the microorganism to breakdown organic substances. Consequently, this enhances the taste of grown vegetables. The looping of the plants can be avoided. No stress created by the pouring water to the plants. The plants can have ideal growth cycle. It is now possible for plants to thrive even if the root doesn&#39;t expand as widely, thus the plant can be grown in smaller flower pots rather than conventional size pots.  
      Since water level regulator  1  is simply composed of case  10 , first float  20  and second float  30 , the device can stay small. Water level regulator  1  is operated by gravity with no power source required. Unless the device breaks down, it keeps adjusting water levels.  
      As shown in the  FIG. 7 , you may apply water level regulator  1  on the lawn, in bushes, plants in the rooftop, and the roadbeds.  
      As an example of a water catcher  40  that is equipped with the water level regulator  1 ,  FIGS. 8 and 9  show the combined use of water catcher  41  and water level regulator  1 . Water catcher  41  has 2 or 4 planters P 1 , P 2  installation parts on the upper part of the device. The water level regulator  1  is located inside water catcher  41 .  
      Water-level-adjustable water catcher  40  can be used as water filling port  16  of water level regulator  1  is connected with the water tank at a higher place (no figure shown). The rainwater can be stored in the water reserve tank. The fertilizer supply line can be installed in connected route between water filling port  16  and the water reserve tank. Instead of connecting water filling port  16  to the water reserve tank, it can be connected to the water faucet by using decompression device. Planters P 1  and P 2  are placed on water catcher  41 . The planter can be any size or any form. The water level regulator  1  supplies the water and adjusts the water level to inside water catcher  40 .  
      The water-level-adjustable water catcher  40  can be used for profit-pursuing purpose. For example, to grow flowers, trees, vegetables for profit-pursuing purposes, this device can be combined with solar panels, dry batteries, 12V/4 A motors, water catch tanks, pressure tanks, fertilize devices and/or EC/FC meters. It is capable to cultivate 2000 pots of tomato, melons etc. in 1000 sq. meters. The water-level-adjustable water catcher  40  is applicable in all types of planters such as cartridge type plants, planters for flowerpots, cartridge type planters for vegetable grow (round, square, any shape), and planters for foliage plants.  
       FIG. 10  and  FIG. 11  illustrate a different approach to the implementation of the invention for the water-level-adjustable water catcher.  
      The water-level-adjustable water catcher  50  includes a water catcher  51 , a water absorption mat and a water level regulator.  
      Water catcher  51  includes of an upper surface  54  with a groove  53 . Water absorption mat  52  is located on upper surface  54  of water catcher  51 .  
      There is the water intake  52   a  inserted through the groove  53  inside the water catcher  51 . The thin roots proof mat  55  is located on the water absorption mat  52 .  
      The water level regulator  1  is installed inside at the bottom of the water catcher  51 , which leads to the groove  53 .  
      The water-level-adjustable water catcher  50  can be used by connecting the water filling port  16  of the device  1  to the water tank set at a higher place. The flowerpot P 3  is set on the water absorption mat  52 . The water level regulator  1  supplies the water into the water catcher  51  and adjust water level. The water absorption mat  52  sucks up water inside of the water catcher  51  from the water inlet  52   a  through the groove  53 . The water seeps through the entire water absorption mat  52  through the capillary action. The water, sucked up by the water absorption mat  52 , is supplied to the flowerpot P 3 .  
      Therefore, the water entered from the sluice through the flexible tube  37  run through the groove  53  and seep through the entire area. The flowerpot P 3  is set on the roots proof mat. The flowerpot P 3  is made of thin hemp like bonded textile, which is breathable. Consequently, the flowerpots can breath on a steady basis. Roots grow toward inside and do not appear outside.  
      The flowerpot P 3  sucks up the water absorbed by the roots proof mat  55  from the bottom where the pot touches the roots proof mat  55 . The plant in the pot takes in the water from the bottom of the pot. The water that the plant absorbed evaporates through the leaves. The plants roots supplied from the water intake  52   a  in the groove  53  absorbs the water in the water catcher  50  and the water level falls to the bottom. Then, the water absorption mat  52  is detached from the water and the air enters through the water absorption mat  52 . At this time, the water flows out of the water reserve tank through the flexible tube  37  and flows into the water filling port  16 . The water level regulator supplies water as previously explained and adjust the water level. These operations will be repeated depending on the needy condition of the plants. This eliminates water stress from the plants and also there will be ample supply of air entering the water absorption mat  52 . The water-level-adjustable water catcher  50  is an ideal water supply system.  
      In case of producing plants, it is transplanted to a target place through production and growth planning from the seedling matching to the purpose of its use. In this case, “the procedure to grow the seedling is an important factor.” There is large variation on how the plants turn out depending on how they were grown, and, to some extent, depending on how they were maintained.  
      In general, the root looping is often seen at the stage of production of the sapling. This happens because even though, plants get sufficient water, they do not receive adequate amount of air at the production stage. Looping roots are not necessary for growth, and often need to be trimmed out before transplanting.  
      The following conditions are desirable during the production stage: 
          1. There is no looping of the root.     2. Sufficient water supplies; no need to extend root.     3. Sufficient air supplies at any time, no need to extend root.     4. The roots of the plant does not extend to the dry area but extend to wet area. The outside of the pot should be dried so as to let roots grow toward inside of the wet area. This way the root should be extending internally.        

      As a result, cutting out the root step can be skipped when transplanting the plants. The plants will grow steadily with minimum transplanting shock.  
      Even though all these problems have been known, there have not been effective ways to control plant production. Plant growers have never left the conventional practice of pouring water to plant pots all at once because of practicality from the standpoint of growers. This water-level-adjustable water catcher  50  makes a good environment for the plant from the synergy effect of the water level regulator  1  and the water absorption mat  52 . It could lead to the desirable economic effect.  
      In the past, many hard to grow plants were force-grown in a short term. All means were used to improve the profit. As a result, the deterioration of a vast environment was caused. As putting manure directly, the chemical fertilizer that dissolves to water is given, and then it begins to melt when it gives water. The effusing chemical reached the underground water from the bottom in the pot. Or, a liquid chemical fertilizer is mixed with the soil; the water was sprinkled on the soil for a long time. Meanwhile, far more a large amount of chemical fertilizer mixed with water reached into the underground water and even reached to the sea. It is thought that it causes the red tide and other pollutions by eutrophication.  
      We should break out of such method. All the fertilizers are supplied for the plant. It is desirable that the plant absorbs everything. The fertilizer should not infiltrate into the soil with water. If the water-level-adjustable water catcher  50  is used, the production system that can disseminate fertilizer only to the plants without any spilling can be established. This is highly desirable for preserving the environment.  
      To set up one water level regulator in 1 sq. meter, one-hundred 9 cm diameter pots (3¾ inch diameter pots), eighteen 20 cm diameter pots (8 inch diameter pots) can be managed without manpower. Because of shortage of young age labors in this field, this would add to positive economic impact. Even within a 1000 square meter area, water management for a large quantity of plants can be possible without wasting even one drop of water without having to rely on much manpower  
      The conventional way of watering was to pressurized water and spray on the plants. Sometimes a massive amount of water is pumped in at once. Other times, plant pots are placed on water containing trays for water supply and the water is drained afterwards or the chemical substance and the chemical fertilizer for disinfectant and sterilization are mixed in water and sprinkled. Most of the supplied water infiltrates into the soil. Such water management is practiced repeatedly. Such is the realistic picture in the plant production world and, while some people question the conventional way of water management, not much has been done to address the problem.  
      The water-level-adjustable water catcher  50  has made it possible to control once thought of as uncontrollable factors like the water saving, fertilizer saving and chemical saving. Other benefits include no more polluted underground water, creating ideal ecological condition for plants to grow, saving the labor costs and achieving overall cost savings. This means that it is not only good from the environmental standpoint, but also adds significant economic benefits. A big improvement is brought to the plant growing practice by combining the water level regulator  1  and the pot made of the bonded textile P 3  with water absorption mat  52 .  
       FIG. 12  shows the implementation of the invention of the water-level-adjustable planter. Water-level-adjustable planter  60  includes planter body  61  and water level regulator  1 . Planter body  61  has installation part  62  in the back panel for the installation on the wall. The water level regulator  1  is placed inside the bottom of the planter body  61 . The water level regulator  1  is installed in the planting part and the room for easy maintenance. The water level regulator  1  is detachable for easy maintenance to the plants.  
      In using water-level-adjustable planter  60 , part  62  of planter body  61  is mounted to a wall surface  63 . Water filling port  16  of the water level regulator is connected with the water tank set at a higher position. Water level regulator  1  supplies the water into the planter body  61  and adjusts the water level.  
      The water distribution system of the water level regulator can supply the water and the air regularly and repeatedly. In this way, plants always receive what it needs the most. Therefore, no more water stress exists for all types of plants. On the other hand, water management by human hand is hard and sometimes impossible to manage. The human developed good use of technology such as computer sensor, which is able to detect things that the human is unable to find. The human tend to depend on the electric method. However, the complicate system such as the electric wiring is very vulnerable to the water.  
      It makes system even more complicated and hard for the maintenance.  
      The water level regulator  1  does not include of any electric parts. It utilizes only the force of gravity. As for the water level regulator  1 , the structure is extremely simple; therefore the breakdown is very rare. If this simple device, the water level regulator  1  is installed to the buildings and the building walls, the buildings can be covered with plenty of greeneries. In that case, the positive impact on the global environment is immeasurable.  
      To install the device on the wall, the following matters and measures must be considered: 
          1. As measures against climate changes, the plant that can adjust to the climate should be selected.     2. As measure against changes of sunshine amount, the plants should be selected according to the region (Japan&#39;s case for example, east part or west part of Japan).     3. As the measures against the amount of rainfall, when the rainfall exceeds a certain amount, let it be overflow.     4. As measure against changes of sunshine duration, the plants should be selected according to the region.     5. As measure against changes of the seasons, Plans in spring through autumn and plans in autumn through winter should be selected.     6. As measure against changes of the force of the wind, it should be protected it from the strong wind with the net.     7. As measure against changes of wind direction, the plans should be stable against the strong wind and it is necessary to add the reinforcement work.        

      By conducting these measures, water-level-adjustable planter  60  is able to deal with all types of weathers. Accordingly, by placing water-level-adjustable planter  60 , Greening can be offered to the buildings of the cities without green. Water-level-adjustable planter  60  can be installed to the wall by screwing regardless of new or already existing buildings.  
      By greening the walls and buildings, it is possible greening the whole building.  
      Incidentally, Greening can protect the wall materials and the waterproof layers, which leads to extending its useful life.  
      Accordingly, it will not be necessary to use bricks, ceramics and expensive tiles to construct buildings. Relief of heat Island environment, creating comfortable city environment, protecting earth environment can be achieved. Any types of plants can be planted for greening project. In general speaking, planting low maintenance perennials are desirable. Accordingly, a law maintenance type greening system that makes the best use of natural environment can be constructed. The energy cost saving from reduced air conditioning bill can be expected because the rise of the outside temperature through heat evaporation can be minimized. Furthermore, accumulation of the raindrops from the plants, the outflow of surplus water can be delayed to prevent city type flooding. The plants can absorb not only the water but also the dust in the air and noise. Also, water-level-adjustable planter  60  can install the guards to protect the plans from the strong wind.  
       FIG. 13  shows the implementation of the invention of the water-level-adjustable planter.  
      The water-level-adjustable planter  70  includes a water catcher  71 , a sidewall  72 , a top panel  73  and the water level regulator.  
      Water-level-adjustable planter  70  is rectangular in shape. There is a partition  74  able to pass water and to prevent the soil. The sidewall  72  is installed in the surrounding area of the water catcher  71 . The top panel has a lot of water inlets on the upper part and drainage in the bottom.  
      A top panel  73  has penetration holes  77  for plant to grow vertically above one side while partitioned by a partition panel  74 . Water level regulator  1  is installed on the other side of partition  74  by the inside on the bottoms of water catcher  71 . Water filling port  16  of water level regulator  1  is connecting to the drainage with the flexible tube.  
      Water-level-adjustable planter  70  has top panel  73  and penetration hole  77 . On the other side, the soil is placed on the water catcher  71  enclosed with sidewall  72  and the partition  74 , and then plants are planted. The plant is made to grow from penetration hole  77  to upward.  
      The rainfall enters from top panel  73  a water inlet  75 , and accumulates inside the device. The water in top panel  73  is taken from a drainage  76 , and water level regulator  1  supplies into the planter and adjusts the water level. Partition  74  passes water located on the opposite side of water level regulator  1  to the other side. The water is to be used by the plants.  
      The following is the features of the water-level-adjustable planter: 
          1. The rainwater can be accumulated.     2. To pool the rainwater, the container is needed. Top panel  73  can be a container.     3. Top panel  73  can only accumulate rainwater. Top panel  73  should be inclined.     4. Inside the container should need inclination.     5. There is certain capacity in top panel  73 . It will not hold more than its capacity.     6. If there is more rainfall, the rainwater will enter into penetration hole  77 .     7. Plants are planted from penetration hole  77  of top panel  73 .     8. Or, cover with top panel  73  so that the plant is exceeded from penetration hole  77  after planting.     9. To make things easier to plant from penetration hole  77 , the size of penetration hole  77  is 10.5 cm wide that your palm can be passed through the hole.     10. The top panel is (1) protecting inflow of the soil by heavy rain, (2) protecting soil to become consolidated from heavy rain, and (3) in case of heavy rain, because the rain water that entered from  77  is gone along in the leaf and enters, the influence of rain of the soil is considerably little. So, it protects soil to become consolidated.     11. By having the top panel, rising temperature of the soil surface can be controlled by strong sunbeam.     12. Under top panel  73 , the top panel protects the plant root that is growing. Because of this, mulching-agent is not needed.     13. Penetration hole  77  of the top panel can hold large sized pots currently used for flowering plants.     14. Penetration hole  77  of top panel  73  can somehow hold pot mums in 12 cm diameter pots. There is no problem with small prude mum.     18. Seeds of weeds in the soil would not germinate because top panel  73  closes off from it.     19. In case seed in the soil germinate afterwards, top panel  73  shuts off the sun, and then weeds will not grow normal.     20. In case weeds germinate in between plants, it is easy to pull out them from the soft soil.     21. Seeds of weeds germinated later on, it is also easy to pull out.     22. Accumulated rainwater in top panel  73  stops water to enter at certain water level.     23. Water level regulator  1  adjusts water level by the force of gravity.     24. The water entered in water level regulator  1  stops entering at certain water level.     25. Rainwater absorbed in the soil is absorbed by the plants. The rainwater is kept in certain level and contacting with soil, it is absorbed in the soil by the capillary action.     26. The moisture that the plant breathed in begins the transpiring action by the sunlight.     27. The moisture the most important for the plants is abundantly supplied always if necessary without the excess and deficiency. The water stress that is powerful enemy no longer exists.     28. The necessary fertilizer flows in at the same time, so that plants grow well.     29. Water level regulator  1  can also supply the air (e.g., oxygen). The water and the air are supplied alternatively. The cycle of repetition of the water, supply is given as needed for each pots even though the environmental variables like weather, temperature, season, wind force, sunlight time, humidity in the air, sunshiny and shade, type of plants, grow speed of plants, size of plants, etc. exist. Water-level-adjustable planter  70  provides ideal device for plants growth. The blind spots of the cultivation of the flower and the plant that the human could not have done manually is solved. This is the best device for plants.     30. The plant does not need to put the root more than necessary. No looping is necessary, (e.g., the root twined in the pot when the root grows for water and nourishment). For example, a white root twines when the flower is pulled out from the pot.     31. This is an extremely desirable condition for plants to grow. The plants can keep growing without transplantation.     32. It is surprising how little of rooting is required considering the size of planted area and the size of the plants. No need to add an extra soil. No need to use larger size planting pots. The benefit is significant from the viewpoint of the costs, economy, weight and resources.     33. The surrounded pot is made mixing with remaining clay, slaked lime, and water according to a traditional Japanese method (e.g., the Tataki method).     34. Since the environmental preservation has been stressed globally, CO2 is absorbed into “tataki” during the manufacturing process. The environment friendly plants are planted by using natural substance and eco-friendly materials.     35. By pool the rainwater temporarily, these plants contributes to easing the city type flood.     36. Since the heat Island phenomenon is becoming an issue of concern, greening is possible by utilizing rainwater on the man made pavement.     37. This device can be installed at any places (e.g., places where it rains a lot). In case, it lacks of rainwater, hand watering with bucket of water would do.     38. This device can be transformed into the water that does not oxidize by adding ferrous ferric chloride (FFC), and then it is transformed into the decay free rainwater.        

       FIG. 14  shows another implementation of the invention of the water-level-adjustable planter. A water-level-adjustable planter  80  includes a water catcher  81 , a water absorption mat  82 , a root proof mat  83 , a drainage layer  85 , seeds  86 , and a sunshade  87 .  
      The water absorption mat is located on water catcher  81  that is able to absorb the water inside water catcher  81 . The drainage  84  is placed on the root proof mat  83 . The water reservation layer is made of the felt and is placed on drainage layer  84 . The types of seeds grown  86  are moss and sedum and they are placed on water reservation layer  85 . Sunshade  87  is placed above seeds  86 .  
      Water-level-adjustable planter  80  is for producing sedum necessary to turn the roof green. In recent years, there are amid calls for greening not only on the rooftops but also on the slanted rooftops as well. In city of Sendai, Tokyo and other local cities, government mandate greening of the rooftops by offering to subsidize the cost. And so, plants that thrive on the rooftop, and not the ground, i.e., sedum and moss type plants that can endure harsher rooftop conditions with minimum resources are raised on the rooftop garden. The rooftop condition would be created in such way that in case weeds intrude and germinate on the roof, weeds would wither out in dry climate and only sedum and moss, which can take dry climate much better, would survive. When growing sedum and moss, it is desirable to produce them on the ground under the same condition as the rooftop.  
      Water-level-adjustable planter  80  is the best for initial production of plants such as sedum. In the past, after setting up water-level-adjustable planter  80 , sedum seeds are sowed. Environment similar to being on the rooftop, i.e., repeatedly dry ambience, is recreated. Though, young seeding needs the water, sedum is inept in humidity. The challenging task of timing when to add moderate humidity and dryness was only dependent on human touches and intuitions, and could not be automated. Water-level-adjustable planter  80  is the only device that can solve such problems.  
      While sowing sedum seeds may be an easy task. Taking care sedum after germination is hard because sedum is delicate. Hand-watering is especially hard. When water-level-adjustable planter  80  and water level regulator  1  are used together, the water level can be adjusted properly thus saving labor cost. Not only the healthy growth of sedum can be expected, but also they will be in much better condition to thrive and endure the much harsher condition once they are transferred to the roof.. Furthermore, if ferrous ferric chloride (FFC) usage is combined, the plant bed can become even stronger and disease-proof. Packaging grown sedum with the water supply layer makes shipping easier.  
      Related to this invention such as the water level regulator, the water adjustable water catcher, and the water adjustable planter by having simple structure make it possible for the device to stay small in size.  
      The foregoing descriptions of specific embodiments of the present invention have been presented for purposes of illustration and description. They are not intended to be exhaustive or to limit the invention to the precise forms disclosed, and obviously many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical application, to thereby enable others skilled in the art to best utilize the invention and various embodiments with various modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the Claims appended hereto and their equivalents.