WO2017045047A1

WO2017045047A1 - System and apparatus for immediate and stabilized hot water supply applied in hydraulic utilities for supply of mixed hot/cold water

Info

Publication number: WO2017045047A1
Application number: PCT/BR2016/050051
Authority: WO
Inventors: João Batista Dumangin SANTOS; Wagner Teixeira SOUSA
Original assignee: Santos João Batista Dumangin; Sousa Wagner Teixeira
Priority date: 2015-09-16
Filing date: 2016-03-08
Publication date: 2017-03-23
Also published as: BR102015023810A2

Abstract

SYSTEM AND APPARATUS FOR IMMEDIATE AND STABILIZED HOT WATER SUPPLY APPLIED IN HYDRAULIC UTILITIES FOR SUPPLY OF MIXED HOT/COLD WATER, represented by an inventive solution in the water supply sector, specifically applied to hydraulic systems intended to offer mixed hot/cold water to apparatuses and/or devices whose primary function is to supply water, being distinguished for solving the problem of delivery of cold water (A1) in the hot water supply subsystem in the first moments of use, reducing waste, offering a unique solution from the economic, ergonomic and ecological standpoints. In order to make such features viable, the inventive system (Si) is installed between the hot water transport device (d21), the cold water transport device (d22) and the water delivery device (d3). It is actually composed of an energy supply module (mi1); a system activation module (mi2); an operational control module (mi3); a water draining module (mi4); and a water blocking module (mi5).

Description

Title of Invention: SYSTEM AND APPARATUS FOR IMMEDIATE AND STABILIZED HOT WATER SUPPLY APPLIED IN HYDRAULIC UTILITIES FOR SUPPLY OF MIXED HOT/COLD WATER !

TERMINOLOGY

0001 jFor better understanding of the matter disclosed and claimed in the present patent of invention, the meaning of some terms extensively mentioned are presented in this descriptive report, where:

0002 Conceptual System: it helps to consolidate, in few words, specific objectives, such as in the

modeling of a physical system. A system is thus formed by a set of "subsystems" which, in turn, is formed by a set of devices related to one another. ;

0003 Faucet: a simple valve that regulates or cuts the flow of a fluid (water) coming from a hydraulic source, allowing this flow to be delivered outside of itself, wherein the water supplied may be hot or cold. ;

0004 iShowers: apparatuses with the function to expose an individual (or animal) to a water shower (only getting their body wet) or even to a water bath (washing the body for purposes of hygiene and, to that end, making use of cleaning products such as soap, shampoo etc.) and water, which may be hot or cold. I

0005 jManifold: Term used to designate the set of elements between a reservoir and the distribution in a hydraulic network. ;

0006 Ergonomics: or "human factors" is the scientific discipline related to the understanding of the interactions between human beings and other elements in a system. It is also the occupation which applies theory, principles, data and methods to design with the intention to optimize human well- being and the overall performance of a system; j

0007 Standards of Cold Water Building Utility: Refers to a standardized requirements and

recommendations for design, construction and maintenance of cold water building utility, applicable in each country; !

0008 iStandards of Design and Construction of Hot Water Building Utilities: Refers to a standardized minimum technical requirements regarding hygiene, safety, economy and comfort for users, under which building utilities must be designed and constructed, and where water will be supplied, specifically hot water, that may contain an specific system known as "hot water recirculation", applicable in each country; ! 0009 Standards of Utilities for Flat Plate Solar Collectors: Refers to a standardized requirements and recommendations for design, construction and maintenance of Utilities for Flat Plate Solar Collectors, applicable in each country; !

0010 iStandards of Thermal Reservoirs for Solar Energy Systems: Refers to a standardized requirements and recommendations for design, construction and maintenance of Thermal Reservoirs for Solar Energy Systems applicable in each country. \

APPLICATION FIELD

0011 This patent of invention with the aforementioned title, object of description and claim in this document presents an inventive solution greatly beneficial for the water supply industry, especially when applied to hydraulic systems whose project aims to supply mixed cold/hot water to apparatuses and/or devices whose primary function is to supply water for all purposes, j

0012 |More specifically, this invention presents a system and resulting apparatus which is connected to specified cold and hot water hydraulic systems and installed in places such as bathrooms (faucets and showers); kitchens (sink faucets), laundry rooms (sink faucets and laundry sinks) and other washing places, for residential, commercial and industrial use. j

0013 Adding relevant information, the resulting apparatus whose embodiment concept is a result of the conceived inventive system can be applied to all hot water utilities , denominated as "Standards of Design and Construction of Hot Water Building Utilities". \

0014 Lastly, the inventive system an apparatus are destined to all hot water utilities whose heating is generated by electric systems, gas systems, solar energy systems and others, through the accumulation or transfer of heat through passing.

INVENTION DEMAND

0015 Considering the application field previously defined by systems for water supply, specifically hot water, the applicants identified the need for a significant economy in water consumption, in line with movements for raising awareness regarding rational consumption of this resource so abundantly offered by nature, but whose consumption leads to a complete saturation, especially due to the occurrence of climatic events characterized by the shortage of pluviometric precipitation and consequent decrease of hydro reservoirs. !

0016 Still in the scope of economy in water consumption, this invention also intends to ensure water is supplied at a heated temperature virtually from the very first drop or initial stream, when it is released out of the hydraulic system, thus preventing the usual waste of cold water in the existing systems. Once that condition of use is fulfilled, the usage time of hot water is consequently reduced, thus reducing the volume of water consumed, i 0017 As a consequence of the end user's contact only with the water already heated, the requirement of usage ergonomics is also fulfilled, translated in the thermal comfort experienced throughout the whole usage cycle of the water supplied.

0018 This invention also intends to enable the economy of energy used during the water usage cycle, which is also a result of the decreased usage time of hot water.

INVENTION REQUIREMENTS

0019 n line with the requirements of the invention, the applicants conceived the "system and apparatus for immediate and stabilized hot water supply applied in hydraulic utilities for supply of mixed hot/cold water" which represents a novelty product and involves an inventive step, since it is not an obvious or evident development of other techniques of the prior art, with advantages from the industrial, commercial, technical and ecological standpoints. ;

0020 n addition, the "invention" has industrial applicability, is economically viable and, therefore, meets the rigor of the patentability requirements, especially as a patent of invention ;

Background Art

0021 In order to provide truth and consolidate the context disclosed in the topics of the introductory framework, we shall present a brief explanation about the prior art for hydraulic systems for hot water supply, where, after critical analysis of those systems conducted by persons skilled in the art, the identification of their limiting aspects and the consolidation of the identification of the aforementioned requirements will be made,

0022 la. On the Known Prior Art

0023 The architecture of a conventional hot water supply system, taking as an example a shower or a faucet utility with a heater, can be described by the functional modules: \

0024 ia.l System Activation Module : identified for being directly related to the activation of the flow valves, in the form of handles present in faucets and, remotely, in the shower-specific hydraulic system, wherein the water flow is responsible for the activation of the water supply module and the water heating module.

0025 la.2 Water Supply Module : identified by the hydraulic system per se, in which the water usually comes from a large reservoir located remotely in relation to the point of supply (faucet spout or shower head, for instance); j

0026 ia.3 Water Transport Module : identified by the hydraulic piping, in which the pipes can be made of different types of materials, usually metals and polymers; i

0027 ia.4 Water Heating Module : identified by a heating device, which may comprise several different technologies, such as electric heating, solar heating, gas heating. | ja.5 Water Delivery Module : identified by points of delivery such as faucet spouts and a plurality of different points of water ejection for showers (shower heads), for instance; i

ib. Critical Analysis : although the conventional hot water supply system is effective in its main function, whether it is to supply hot water to the user or for baths, washing hands and kitchen supplies or food, the thorough observation of its operation reveals several restrictive aspects from a technical, economic and ecological point of view, listed and commented below. I

ib.1 From the Ergonomics of Use Point of View : the main issue of the conventional hot water supply utilities is the factor of thermal discomfort for users in the first moments of use, since they receive an initial stream of cold water and need to wait for a few seconds for the supply of hot water to start, frustrating the initial expectation of comfort, j

ib.2 From the Economic Point of View : the washing cycle of conventional hot water supply systems is lengthy, since the first liters of water are not actually used. It is common for users to wait for the supply of a hot water stream to begin their washing procedures, resulting in the waste of these first liters of cold water, a waste boosted considering the added value of each point of supply of water. This waste has an impact in the economic cost of the overall washing procedure as the water consumption plays an important role in the commercial, industrial, state and family budget, i ib.3 From the Ecological Point of View : resulting from the waste of water in each washing cycle carried out by millions of users each day, hour and minute, and considering the alarming hydric crisisthat occurs globally, this waste is prohibitive, since it puts at risk the water supply for the biological consumption of the living beings, not only the consumption for purposes of hygiene. \ ic. Problem Identification and Causes : considering the critical analysis presented, the observation by engineers and hydraulic network management experts reveals a macro issue related to water waste, leading to a ripple effect of economic, ecologic and ergonomic problems, not necessarily in this order of importance. Evidently those are aspects that cannot be neglected, since they are of individual and civic responsibility, i

jln turn, the observation from the technical point of view reveals that the cause of this macro issue is related to the technical and the human aspects, I

ic.l Human Aspect : is related to the culture of consumption and, once again, leads to the civic responsibility, which must evidently be addressed with the seriousness the issue deserves, in which the times of this new, dramatic reality of shortage of water resources, which were so far considered endless, asks for the re-education of the population. Nonetheless this will not be the aspect to be addressed in the claim of the present invention. ;

jc.2 Technical Aspect : also a result of the alarming shortage of hydric resources, experts on the matter started to look at the conventional water supply systems more critically, in which the aspect of waste in water consumption, especially, is significantly more relevant in studies of water supply systems, and even more incisive regarding the waste factor for the hot water supply. 0037 This way, the applicants, after embracing the macro issue discussed, specifically from the point of view of the engineering and the hot water supply management of conventional systems, in each technical detail, reached the following list of limiting technical aspects of a customized operability:

0038 j- The time the hot water takes to arrive at the point of delivery (the system's water delivery

module) is very lengthy, causes an initial delivery of a large volume of cold water, even if the water heating module has already been activated; |

0039 j- The long time required for temperature stabilization of hot water is also relevant, which results from the need of gradual heating of the piping of the water transport module previously discussed;

0040 j- the technical condition of the distance of the water heating module (electrical heating, for

instance), in relation to the water delivery module (faucet, for instance) to the end user is also key in the water waste inherent to conventional hot water supply systems. There is a directly proportional relation, in which the longer the distance between the aforementioned operational modules, the more difficult it is to stabilize the water temperature heated in the water transport module (piping), and the longer it takes for the heated water to reach the delivery module, j

0041 id. Prior art.

0042 ln the attempt to solve the problem of water waste, it is appropriate to expose that there are known hot water recirculation systems in some building utilities that, from the conceptual point of view, or as the name implies, recirculate the hot or cold water throughout the hot water building utility only, (described as "Standards of Design and Construction of Hot Water Building Utilities"), and is never connected to two systems, for instance, to the cold water building utility system (described as "Cold Water Building Utility"). !

0043 Over time, the interconnection of hot and cold water systems has been treated quite restrictively because it is considered as a possible source of problems; so much so that, as can be noted from the previous paragraph, they are addressed individually in different standards, j

0044 The reason for this concern lies in the fact that hot water provided by the hot water building utility system (described as "Standards of Design and Construction of Hot Water Building Utilities") tends to naturally move to the cold water building utility system (described as "Standards of Cold Water Building Utility"), through what has been commonly called thermosyphon phenomenon which, explaining briefly, is a phenomenon in which solar heating systems are based, considering the "Standards of Utilities for Flat Plate Solar Collectors" applicable and" Standards of Thermal Reservoirs for Solar Energy Systems"

0045 iln turn, the existing recirculation systems limit themselves to temporarily or permanently

recirculate the water inside a closed hydraulic circuit of hot water in a building utility along the manifold, j

0046 One negative aspect is the fact that they are only applicable to new projects, and the construction of new facilities and utilities is necessary. ; 0047 Another restrictive aspect is that they generate a large amount of energy consumption and waste.

0048 Additionally, the recirculation systems also require specific return piping in specific material for hot water. \

0049 Finally, the recirculation of hot water does not occur directly in the mixing device. Therefore, even during operation, they incur in some waste of water and time, since the water between the manifold and the point of consumption remains cold. ;

INVENTION PROPOSAL

0050 The main goal of the present invention is to solve the problems (and its causes) previously

identified and discussed in the background art topic, being pertinent to list: \

0051 i- eliminate the discomfort inherent to hot water utilities, where users, when opening the shower or faucets, which are devices designed for the water delivery module, immediately receive hot water, thus avoiding the waste of precious liters of waters each time the system is activated; I

0052 reduce the time for hot water to arrive from the water heating module to the water delivery module; \

0053 i- reduce the time for water temperature stabilization, eliminating the need to heat the piping which that the water transport module; ;

0054 - eliminate the relation heating time vs. distance between the heating module and the water

delivery module; j

0055 b. Distinguishing Feature : for the purpose of the invention to become viable, the "system and apparatus for immediate and stabilized hot water supply applied in hydraulic utilities for supply of mixed hot/cold water" was conceived, which, when activated, captures water still cold, that is usually wasted in the hot water building utility system, (refered as "Standards of Design and Construction of Hot Water Building Utilities"), returning it to the cold water building utility system (referred as "Standards of Cold Water Building Utility"). \

0056 n turn, the integration of the hot water building utility system (described as "Standards of Design and Construction of Hot Water Building Utilities") with the cold water building utility system (referred as "Standards of Cold Water Building Utility"), is also now viable, through the knowledge and control of the thermosyphon phenomenon, pivotal for the success of the inventive system/apparatus, because it allows the secure interconnection of both systems, achieving the much desired economy of water, energy and time in the usage cycles of hot water supply systems in points of consumption, j

DESCRIPTION OF THE FIGURES 0057 In order to complement the present description and to better understand the characteristics of the present invention, according to its preferred form of practical embodiment, the description is accompanied by a set of figures appended, where:

0058 figure .la is an illustrated representation of the frontal view of a bathroom/washroom sink

installation, showing the conventional hydraulic utility for supply of cold and/or hot water; |

0059 iFigure .lb is an illustrated representation, in the form of a block diagram of the conventional hot water supply system applied to hydraulic utilities for water supply, showing its functional modules and submodules; I

0060 IFigure .2a is an illustrated representation of the rear view of a bathroom/washroom sink

installation, showing the conventional hydraulic utility for supply of cold and/or hot water, with the installed device for immediate and stabilized supply of hot water that is object of this claim;

0061 Figure .2b is an illustrated representation, in the form of a block diagram of the system and

apparatus for immediate and stabilized hot water supply applied to a conventional hot water supply system; I

0062 Figure .3a is an illustrated representation, in the form of a block diagram of the system and

apparatus for immediate and stabilized hot water supply, showing its functional modules; I

0063 figure .3b is an illustrated representation, in the form of a block diagram of the system and

apparatus for immediate and stabilized hot water supply, showing the operational devices attributed to its functional modules; |

0064 Figure .4 is an illustrated representation, in the form of an overall operational flowchart of the logic of use of the system and apparatus for immediate and stabilized hot water supply when activated by the user; and

0065 IFigure .5 is a representation, in the form of a detailed operational flowchart of the system and apparatus for immediate and stabilized hot water supply when activated by the user. I

Description of Embodiments

0066 he following detailed description should be read and interpreted with reference to the drawings, block diagrams and operational flowcharts presented, representing the prior art for the conventional hot water supply system applied to hydraulic utilities for water supply, and a preferred embodiment of the system and apparatus for immediate and stabilized supply of hot water presented, not intended to limit the scope of the invention, which shall be limited only to the described in the claim scope.

. On the Conventional Installation of a Sink/Washbowl : as described in Figure .la, to a given sink (Tp) is installed a sink (Pi), specifically a vessel, accompanied by a trap (Sa), for draining water into the sewerage, where, adjacent to the sink top (Tp) an electrical box (Cx) such as a switch is attributed.

0068 ib. Prior Art : as shown in the figure .lb, the conventional hot water supply system (Sc) has

architecture composed of functional modules and its respective devices, described in Tabli named "Conventional Hot Water Supply System". i

0069 0070

0071 ic. Hydraulic System Initial State : according to what has been described and discussed in Chart .1, the initial state can be defined by the presence of cold water inside the hot water transport device (d21), specifically inside the piping, and the presence of cold water inside the cold water transport device (d22), as well as inside the piping. I

0072 id. On the inventive system/apparatus(Si) : as was shown in Figures .2a and .2b respectively, the inventive system and apparatus for immediate and stabilized supply of hot water (Si) is installed in the intersection of the hot water transport submodule connection (m21) and the cold water transport submodule (m22) of the water transport module (m2) and the water delivery module (m3). i

0073 The macro architecture of the inventive system and apparatus for immediate and stabilized supply of hot water (Si) is composed of functional modules and its respective devices, as shown in Figures .3a and .3b, and hown in table 2 below named as "Inventive Hot Water Supply System": j

0074 0075

Module Description i

Energy Supply (mil) Its function is to supply energy to the inventive system/apparatus, specifically to its operational control module (mi3), whose preferred embodiment is composed of an electrical outlet (dil), such as a specified power socket in the electrical box (Cx) connected to the adjustable timer (di31) through appropriately specified electric wiring (Fel).

SystemActivation(mi2) its function is to enable the operational activation of the system/device (Si),

0076 id. On the Operational Logic Embedded on the Inventive System

0077 Once the architecture of the inventive system and apparatus for immediate and stabilized supply of hot water (Si), as well as its installation to the conventional hot water supply system (Sc) has been well established, it is possible to understand its operational concept, which will be presented throughout different levels of detail. i

0078 id.1 Logic of Use of the System/Apparatus : corresponds to the actions that must be taken by the end user, which, as shown in Figure .4, are defined by the sequential events described and discussed below. \

0079 i- Activation of the System Activation Module (PI): the user activates the button component of the electric activation device (di2), specifically a push button switch in the system activation module (mi2) which, at this point, activates the use permission indicator (di32) in "stand-by" mode, in which the user initially perceives a red light; i

0080 j- Stand-by Time (P2): in order to open the water delivery device (d3) of the mixer, when the

predefined time or temperature for the "use" mode is achieved, the user perceives a green light in the use permission indicator (di32); and |

0081 i- Activation of the Water Delivery Module (P3): opening of the 21/23 water delivery device (d3), which, once the use permission indicator has been confirmed to be in "use" mode, specifically when the green light is on, the user can now open the water delivery device (d3), which may be a faucet in a sink or shower, and which now delivers hot water. \

0082 id.1 Operational Logic of the System/Device : as shown in Figure .5, it is defined by the sequential events described and discussed below. \

0083 j- Event .1 Activation of the System Activation Module (PI): the user activates the button

component of the electric activation device (di2), specifically a push button switch in the system activation module (mi2); i

0084 j- Event .2 Stand-by Indication : at this point, the use permission indicator (di32) is activated in

"stand-by" mode, and the user sees a red light displayed, as well as a digital timer, in case an adjustable digital timer (di31) has been used or, alternatively, perceives a temperature indicator, in case a temperature meter has been used (di31'); \

0085 I- Event .3 Activation of the Operational Control : it occurs simultaneously to Event .2; the

predefined adjustable timer (di31), or alternatively, the temperature meter (di31') with the monitored temperature parameter, is activated; i

0086 jEvent .4 Start of the Cold Water Draining : the draining of cold water inside the hot water transport device (d21), specifically, is performed by the activation of the hydraulic pump (di42) and the solenoid valve (di52) simultaneously, removing the water (Al) from inside the hot water transport device (d21), passing directly through the tee connection (di51), and is finally injected in the cold water transport device (d22). \

0087 iEvent . 5 End of the Cold Water Draining : when the adjustable timer (di31) is zeroed out, or

alternatively, when the temperature meter (di31') reaches its predefined limit, those same devices halt the operation of the hydraulic pump (di42) and the solenoid valve (di52), preventing backflow of cold water (Al) into the hot water transport device (d21), thus preventing the thermosyphon phenomenon; |

0088 iEvent .6 Use Permission Indication : when the adjustable timer (di31) is zeroed out, or alternatively, when the temperature meter (di31') reaches its limit, the use permission indicator (di32) is signaled to change its status to "use permitted". The user, then, perceives a green light and/or hears an audible signal emitted; and j iEvent . 7 Opening of the Water Delivery Device : the user activates the water delivery device (d3), in which, for hot water to be delivered, a water flow is released which, at this stage, is a flow a hot water (A2) that comes from the hot water transport device (d21), which passes through the tee connection (di41) and through the primary hot water piping (Tl), reaching the water delivery device (d3). j

The preferred embodiment chosen for the invention presented in this document and detailed in this description is provided only by way of example. Alterations, modifications and variations may be made to any other forms of constructive embodiment of the "system and apparatus for immediate and stabilized supply of hot water". Such alterations may be performed by those with skill in the art, without however departing from the purpose disclosed in the patent application, which is defined solely by the appended claims. Ϊ

ilt appears from what has been described and illustrated that the "SYSTEM AND APPARATUS FOR IMMEDIATE AND STABILIZED HOT WATER SUPPLY APPLIED IN HYDRAULIC UTILITIES FOR SUPPLY OF MIXED HOT/COLD WATER" now claimed falls under the rules governing the patent in light of the Industrial Property Law, deserving, by the foregoing and as a result, its privilege.

Claims

[Claim 1] 'SYSTEM AND APPARATUS FOR IMMEDIATE AND STABILIZED HOT

WATER SUPPLY APPLIED IN HYDRAULIC UTILITIES FOR SUPPLY OF MIXED HOT/COLD WATER" in which a conventional mixed hot/cold water supply system (Sc) is basically defined by a functional water supply module (ml) composed of a hot water supply system submodule (ml 1), in the form of a hot water reservoir (dl 1) and a cold water supply submodule (ml2), in the form of a cold water reservoir (dl2); a functional water transport module (m2) composed of hot water transport submodule, (m21) which comes from the hot water supply submodule (ml 1) to which a hot water transport device (d21) is attributed, in the form of hot water hydraulic piping, such as a piece of flexible pipe, and a cold water transport submodule (m22), which comes from the cold water supply submodule (ml2) to which a cold water transport device is established (d22), in the form of cold water hydraulic piping, such as a piece of flexible pipe. The water transport module (m2) is connected to the water delivery module (m3), which is composed of a water delivery module (d3), such as a faucet in a sink or shower, and the system and apparatus for immediate and stabilized supply of hot water (Si) is characterized for being installed connected to the hot water transport device (d21), the cold water transport device (d22) and the water delivery device (d3), which comprises a power supply module (mil) composed of electric outlet (dil), such as a specified power socket in the electrical box (Cx) connected to the adjustable timer (di31) through appropriately specified electric wiring (Fel); a system activation module (mi2) composed of an electric activation device (di2) installed inside the electrical box (Cx) connected to the adjustable timer (di31) through electric wiring (fe2); an operational control module (mi3) composed of an use permission indicator (di32); a snubber (di33), such as a line filter comprised by the association of a series resistor and a capacitor; a water draining module, (mi4) composed of a tee connection (di41) joining the hot water transport device (dl 1), the primary hot water piping (Tl) and the hydraulic pump (di42) at a single spot; a water blocking module (mi5) composed of a tee connection (di51) joining the cold water transport device (d22), the primary cold water piping (T2) and the solenoid valve (di52) at a single spot; j

[Claim 2] 'SYSTEM AND APPARATUS FOR IMMEDIATE AND STABILIZED HOT

WATER SUPPLY APPLIED IN HYDRAULIC UTILITIES FOR SUPPLY OF MIXED HOT/COLD WATER" according to Claim 1, in which the electric activation device (di2) is characterized as being composed of a push button switch; \

[Claim 3] 'SYSTEM AND APPARATUS FOR IMMEDIATE AND STABILIZED HOT

WATER SUPPLY APPLIED IN HYDRAULIC UTILITIES FOR SUPPLY OF MIXED HOT/COLD WATER according to Claim 1, in which the operational control module (mi3) can alternatively be characterized by an embedded temperature meter (di31'); i

[Claim 4] 'SYSTEM AND APPARATUS FOR IMMEDIATE AND STABILIZED HOT

WATER SUPPLY APPLIED IN HYDRAULIC UTILITIES FOR SUPPLY OF MIXED HOT/COLD WATER" according to Claim 1 , in which the use permission indicator (di33), if visual, is characterized for having a "stand-by" red light and a "use permission" green light, indicating that the faucet (d3) may be opened; I

[Claim 5] 'SYSTEM AND APPARATUS FOR IMMEDIATE AND STABILIZED HOT

WATER SUPPLY APPLIED IN HYDRAULIC UTILITIES FOR SUPPLY OF MIXED HOT/COLD WATER" according to Claim 4, if the use permission indicator is alternatively composed of an audible use permission indicator (di32), is characterized for emitting an audible signal, indicating that the faucet (d3) may be opened; \

[Claim 6] 'SYSTEM AND APPARATUS FOR IMMEDIATE AND STABILIZED HOT

WATER SUPPLY APPLIED IN HYDRAULIC UTILITIES FOR SUPPLY OF MIXED HOT/COLD WATER" whose logic of use of the system/ apparatus is characterized by the following events: Activation of the system activation module (PI), in which the user activates the button component of the electric activation device (di2), activating the use permission indicator (di32) in "stand-by" mode, in which the user initially visualizes a red light; Stand-by time (P2) for opening of the water delivery device (d3) of the mixer, when the predefined time or temperature for the "use" mode is reached, and the user perceives a green light in the use permission indicator (di32); and Activation of the water delivery module (P3), in which the user activates the water delivery device (d3) of the mixer which, in turn, delivers hot water;

[Claim 7] r'SYSTEM AND APPARATUS FOR IMMEDIATE AND STABILIZED HOT WATER

SUPPLY APPLIED IN HYDRAULIC UTILITIES FOR SUPPLY OF MIXED HOT/COLD WATER" whose operational logic of the system/apparatus is characterized by the following events: Event .1 Activation of the system activation module (PI), in which the user activates the button component of the electric activation device (di2); Event .2 Stand-by Indication, at which point the use permission indicator (di32) is activated in "stand-by" mode, and the user perceives a red light, as well as a digital time counter in the adjustable timer (di31); - Event .3 Activation of the operational control, occurring simultaneously to - Event .2, in which the predefined adjustable timer (di31) is activated; - Event .4 The start of the cold water draining inside the hot water transport device (d21) is performed through the activation of the hydraulic pump (di42) and the solenoid valve (di52) simultaneously, removing the water (Al) from inside the hot water transport device (d21), passing directly through the tee connection (di51), and is finally injected in the cold water transport device (d22); - Event .5 End of the cold water draining, when the adjustable timer (di31) is zeroed out and the operation of the hydraulic pump (di42) and the solenoid valve (di52) is halted, preventing the backflow of cold water (Al) into the hot water transport device (d21), thus preventing the thermosyphon phenomenon; - Event .6 Use permission indication, when the adjustable timer (di31) is zeroed out, the use permission indicator (di32) is signaled to change its status to "use permitted"; the user now perceives a green light; - Event .7 Opening of the water delivery device, in which the user activates the water delivery device (d3), in which, for hot water to be delivered, a water flow is released and, at this stage, corresponds to a flow of hot water (A2) that comes from the hot water transport device (d21), passing through the tee connection (di41) and through the primary hot water piping (Tl), finally reaching the water delivery device (d3); ]

'SYSTEM AND APPARATUS FOR IMMEDIATE AND STABILIZED HOT WATER SUPPLY APPLIED IN HYDRAULIC UTILITIES FOR SUPPLY OF MIXED HOT/COLD WATER" according to Claim 8, for Event .6 (use permission indication) the status change signal of the use permission indicator (di32) may alternatively be characterized for emitting an audible signal.