FIELD OF ART

The invention relates to the field of hydraulics and more specifically to a toilet cistern having a resistance and a thermostat for raising and controlling the temperature of water.

BACKGROUND OF THE INVENTION

The cistern with a resistance disclosed in the present invention has not been disclosed in the prior art.

To date, toilet cisterns use cold water, with a powerful flow to flush the toilet bowl, often creating a whirlpool of water. The most important technical improvement that has been made to them is the addition of a button that allows the user to choose whether to empty the entire cistern or half. The purpose of this improvement is to reduce consumption and protect the environment in general.

Unfortunately, to date, no similar interventions and actions have been taken to reduce water consumption from cisterns. Users, for reasons of hygiene, often flush two and three times to clean the toilet bowl. Given that bowl is the most important microbial source, flushing the bowl often involves the use of cleansing and disinfecting products, which are essentially chemical products. It is therefore obvious that besides the unnecessary water consumption, the chemicals used also burden the environment with incalculable future consequences. Besides, all of the above is a financial burden for consumers.

Furthermore, the chemical products used also burden the person's health flushing the toilet, since he/she usually inhale them, resulting in harmful substances being collected in his/her lungs.

In addition, it should be stressed that the toilet brush presence is the main focus for microbes and pathogenic microorganisms for every household, but its use so far is inevitable for the thorough cleaning of the bowl.

It is therefore an object of the present invention to advantageously overcome the aforementioned disadvantages and shortcomings of the prior art by proposing a cistern bearing a thermostat and a resistance.

It is a further object of the present invention to provide a cistern, wherein the user can increase the temperature of water to effectively clean the bowl. It is a further object of the present invention to provide a resistance- bearing cistern, wherein temperature control will be done by using a thermostat.

A further object of the invention is a flushing cistern which, along with the cleaning of the bowl, will disinfect and sterilize it.

An advantage of the invention is that the resistance-bearing cistern will allow the immediate cleaning of the bowl without additional use of chemicals and other cleaning products for the bowl.

Another advantage of the inventive cistern is that it achieves water saving, since it does not require multiple flushing for successful cleaning of the bowl, reducing consumption and offering economy.

It is also an object of the present invention to protect the aquifers, since the consumption of chemicals is reduced, thereby contributing to the effective protection of the environment.

These and other objects, features and advantages of the invention will become apparent in the following detailed description.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention will become apparent to those skilled in the art with reference to the accompanying drawings in which the device is illustrated in an exemplary, non-limiting manner. Figure 1 shows a perspective view of the interior of a classic cistern as it is installed to date.

Figure 2 shows in a perspective view a respective section a resistance-bearing cistern according to the present invention.

DETAILED DESCRIPTION OF A PREFERRED EMBODIMENT

Referring now to the accompanying drawings, we will illustrate exemplary embodiments of the invention in order to illustrate both its technical characteristics and its mode of operation.

The cistern, Fig. 1, consists of a floating ball (1), filled with air and connected to the valve (2), accumulating water in the cistern. When the water in the cistern reaches a predetermined height, the floating ball (1), since it floats, is also at a certain height, and consequently keeps the water inlet valve (3) closed, from the external source, to the cistern. When therefore we press the flush button (4), the water release valve (5) opens. From there, the water that is accumulated in the cistern is released, through a large hole (6) and a pipe, and is led to the bowl under pressure. Then, the intake valve (3) opens and a corresponding amount of water enters the flush replenishing the water released by the water release valve (5) in the bowl. When the cistern is empty, the floating ball (1) reaches the lowest level. Then the ball (1) blocks the water release valve (5), preventing the water from leaving the cistern to the bowl. The refill tube (7) fills the overflow pipe (8) with water through the already opened valve (2). The overflow tube

(8) essentially refills the cistern.

According to the present invention, the function described above applying in principle to every flush, is not affected in any way. A resistance

(9), Fig. 2, with a thermostat (10) is present in the cistern, heating the water and setting its temperature. In this way, water is heated to a selected temperature, e.g. 85°C, thus disinfecting the bowl during flushing. The resistor (9) is activated by a switch (1 1), which may be located anywhere on the cistern, but may also be located on the power supply cable (12) connected to the power supply. The power can be supplied both from the grid and from external power sources, such as batteries. Similarly, there may be a light (13) indicating that the desired temperature has been reached by the resistor (9).

The resistor (9) with the thermostat (10) may be surrounded by a cover, usually of glass or other suitable material, to protect both the users and the particular components. It is also evident that the particular thermostatic resistance system (9) can be applied to a flushing cistern of any kind, either on a wall, or built-in or in a free position, without any change in the operating mode. It should be noted here that the description of the invention was made by reference to exemplary embodiments, not limited thereto. Any change or modification in terms of shape, dimensions, morphology, materials used and components of construction and assembly, if they are not a novel inventive step and do not contribute to the technical development of the already known one, are considered to be embraced by the objects and contemplations of the present invention as summarized in the following claims.