Abstract: A heat dissipation assembly includes a case and a partition structure. The case includes a cavity, a first water hole, and a second water hole, wherein the cavity includes a first region and a second region communicated with each other. The first water hole and the second water hole are communicated with the first region. The partition structure includes a separation wall and a separation layer connected to each other, wherein the separation wall is vertically disposed in the first region to separate a first flow path and a second flow path disposed in left and right portions in the first region. The separation layer is horizontally disposed in the second region to separate a third flow path and a fourth flow path disposed in upper and lower portions in the second region.

Abstract: A washer fluid heating device includes a container that contains a washer fluid, a lid portion attached to a first end of the container to face an accommodation space for the washer fluid, heating means that has a proximal end portion attached to the lid portion and extends toward the accommodation space, and an outflow pipe having an outlet disposed in the accommodation space to allow the washer fluid in the accommodation space to flow out, and the outlet of the outflow pipe is provided such that a space formed between a horizontal plane passing through the outlet and an inner wall surface at a second end on an opposite side to the first end of the container corresponds to 10% or more of a volume of the accommodation space.

Abstract: An ohmic heater for heating a conductive fluid includes electrodes (14) and spaces (20) between the electrodes. A controller (52) selectively connects the electrodes to a power supply (36) during a succession of actuation intervals so as to form conduction paths, each including two live electrodes connected to different electrical potentials, and the fluid in one or more spaces. The controller models fluid passing through the spaces as a series of finite elements moving through the spaces. Before each actuation interval, the controller estimates the expected results of actuating various possible conduction paths, including the estimated temperature of the fluid in the conduction paths and the estimated currents passing through the live electrodes. The controller selects a set of conduction paths for which the estimated results meet a set of constraints, and actuates only the selected conduction paths during the actuation interval.

Abstract: A water heater and thermal mixing valve assembly and method for providing a reduced discharge water temperature and a hot water temperature from the same tank. The assembly includes a tank adapted to accept and store an amount of cold water, a heater to heat the cold water held in the tank and increase the cold water temperature to a predetermined hot water temperature, at least one thermal mixing valve integrated with the tank in communication with a hot water passage and a cold water bypass conduit to provide a discharge water of a controlled temperature, the cold water bypass conduit being mounted to the cold water passage allowing the associated cold water to communicate with the tank and the thermal mixing valve.

Abstract: The present invention relates to a fluid heating device which can instantaneously heat a fluid which is flowing for the purpose of supply or circulation. It comprises: a ceramic heater in the form of a flat plate having terminal lead wires for applying a power source; partition plates, to top and bottom of the ceramic heater, which allow the fluid which is to be heated to move towards the ceramic heater and which said partition plates have horizontal-movement fluid pathways such that fluid which has been heated by means of the ceramic heater is discharged; a flow path forming plate having a fluid through path such that the fluid on the horizontal-movement fluid pathways can move vertically to the fluid pathway of the next layer; an upper cover having an inlet hole for the supply of a fluid for heating the outside surface of the uppermost partition plate; and a final lower cover having an outlet hole for discharging the heated fluid onto the outside surface of the lowermost partition plate.

Abstract: An apparatus for heating water and steam, that has a first container with cold water and a second container with hot water, the two containers being in fluid communication via an intermediary pipe having a one-way valve to permit flow only from the first container to the second container. The first container has a water level monitor that controls when an input pipe allows water to refill the first container. The second container has a heat exchanger, a steam input pipe, a steam output pipe, and a heating element. The second container may be connected to a steam press, a boiler, and a washing machine.

Abstract: This invention relates to a heating/cooling system operating on the basis of a novel SPLIT BUFFER TANK; representing an efficiency improvement alternative to HVAC systems functioning with existing commercial buffer tanks. Currently, commercial buffers have the heat source provider (HSP)-return and system-return discharging to a common buffer/vessel. Novel SPLIT BUFFER is provided with a SEPARATION DISK placed inside the tank as mechanical way of separating the hot water inflow from the HSP from the warmer water inflow from system return. The disk moves up and down along the tank driven by demanded water supply and return. Pump-1 circulates hot water from the hot section of the buffer to the secondary system claiming for heat. Pump-2 circulates warmer water from the warmer section of the buffer through the HSP where it is reheated, and subsequently stored in the hot section of the buffer to reinitiate this cycle again.

Abstract: A boiler for hot water heating mats, including: a hot water heating tank having a hot water discharging port, a hot water recovering port, and an electric heater; a hot water storage tank connected to the hot water heating tank, with a water charging port, an air exhausting port, a hot water inlet port and a hot water outlet port; a hot water discharging check valve; and a hot water recovering check valve. The heater is installed horizontally or inclinedly, and the interior space of the hot water heating tank is divided into a hot water heating chamber and a hot water discharging chamber. To ensure the heater remains partially submerged in water, the hot water discharging port may be formed at a height higher than the lower surface of the heater or a retaining wall may be installed on the bottom of the hot water heating tank.

Abstract: Provided is a hot beverage maker, comprising a water tank, a boiler, a dispensing device, a water outlet pipe and a control device. A first valve is provided in the water inlet pipe; the dispensing device comprises a first opening, a second opening, a connecting pipeline connected between the first opening and the second opening, and a second valve provided in the connecting pipeline; the first opening opens to the atmosphere, and the second opening is disposed inside the boiler; the water outlet pipe is in communication with an inner cavity of the boiler; the control device is connected with the first valve and the second valve to control open/close of the first valve and the second valve. This disclosed hot beverage maker without power pump or other priming devices has the structure described above, could reduce the material cost and the dimensions of the machine.

Abstract: A method is provided for interconnecting a single electrical heating element of a hot water heater to first and second AC electrical power sources. Typically, these first and second AC electrical power sources include a utility provided electrical power source and a renewable power source that generates AC power from DC power. The method includes operating a controller that selectively connects and disconnects the first and second power sources. If sufficient electrical power is available from the renewable power source, the utility provided electrical power source may be disconnected to preferentially utilize renewable energy.

Abstract: An on-demand, closed-loop fluid heating system with a control system for providing fluid on-demand at consistent desired precise temperatures. The closed loop assembly may include a heating system, an air separation chamber with an air vent valve, a circulation pump, a small fluid accumulation tank, and plumbing forming the closed loop. Various sensors related to flow and temperature of fluids provide input to the combined feed forward and feed back temperature control system, such as a Programmable Logic Controller that precisely adjusts intermittently outgoing fluid temperature by immediately controlling the amount of heating to the fluid at precisely near usage temperature. Output from the control system can regulate various aspects of the system. A check valve in the closed loop between the system inlet and the system outlet avoids incoming fluid from being mixed with heated outlet fluid.

Abstract: The present invention relates to a modular water heating device, comprising a means to allow a quantity of hot water to be made available in a short time and/or to avoid any risk of hot water shortage, in order to ensure the maximum comfort of the consumer.

Abstract: An electric water heater having a filtering device includes an electric water heating device and a filtering device. The filtering device communicates with the electric water heating device, and includes a shell having at least an accommodating area, an inlet connecting to one end of the shell and communicating with the accommodating area, an outlet connecting to the other end of the shell and communicating with the electric water heating device and the accommodating area, a porous magnetic resin film located inside the accommodating area, and a calcium sulfite filter membrane in the accommodating area and between the outlet and the porous magnetic resin film. With the combination of the porous magnetic resin film and the calcium sulfite filter membrane respectively for the absorption of metallic impurities in water and chlorine removal, the scales can be avoided from generating after the electric water heating device heats the water.

Abstract: A fluid preheater (10) includes a body (12) having an interior wall (28) defining a chamber (42) and having an inlet (50) and an outlet (52). One or more heaters (18) are disposed in the wall (28), but not exposed to the chamber (42). The chamber (42) has one or more baffles that cause turbulence in the flow of fluid through the chamber (42) from the inlet (50) to the outlet (52) in order to increase the exposure of the fluid to heat from the heaters (18, 64).

Abstract: An apparatus for heating water and steam, that has a first container with cold water and a second container with hot water, the two containers being in fluid communication via an intermediary pipe having a one-way valve to permit flow only from the first container to the second container. The first container has a water level monitor that controls when an input pipe allows water to refill the first container. The second container has a heat exchanger, a steam input pipe, a steam output pipe, and a heating element. The second container may be connected to a steam press, a boiler, and a washing machine.

Abstract: A hot water tank comprising a sleeve, a removable top lid, at least one changeable water holding compartment adapted to be stacked vertically within the sleeve, stacked compartments being connected by a connecting pipe and at least one heating means provided with one of the compartments. The changeable compartments are configured to be removable from the sleeve upon removal of the top lid in case of failure and the space between the sleeve and the changeable compartments is adapted to hold the contents of the compartments during a leak.

Abstract: A water boiling device includes a heat tank unit received in a machine body, a high frequency induction heater, and a heat pipe unit. The heat tank unit includes first and second heating tanks in communication with each other. Outside water can flow into the first and second heating tanks. The high frequency induction heater includes a heat pipe induction coil and first and second induction coils. The heat pipe unit includes first and second heating pipes. An upper section of each heating pipe is received in one of the heating tanks, and a lower section of each heating pipe extends out of the heating tanks and is inserted into the heat pipe induction coil. The first and second heating tanks will heat up to heat the water in the first and second heating tanks when a high frequency current is passed through the heat pipe induction coil and first and second induction coils.

Abstract: A water heater comprises an inner sleeve (1) and an outer sleeve (2). The upper part of the inner sleeve (1) is connected with an insulating water inlet pipe (3) leading to the inner chamber of the inner sleeve (1). The outer sleeve (2) surrounds the periphery of the inner sleeve (1) and can move axially relative to the inner sleeve (1). One end part of the inner sleeve (1) and one end part of the outer sleeve (2) are respectively connected with different heating electrodes (4). The inner sleeve (1) and the outer sleeve (2) are respectively provided with water outlet holes (5) so that a hot water supply loop is formed in the interlayer between the inner and outer sleeves. The clearance between the inner and outer sleeves is adjusted for regulating current so as to control water temperature. The water heater has a simple structure, small volume, light weight and low production cost, and can regulate the water temperature quickly in an energy-saving mode.

Abstract: A system for heating water which includes a first container and a second container, an air-tight connection between upper ends of the first and second containers, each container including a respective water heating element, and a water outlet port and a water inlet port, a manifold which is operatively connected to the respective inlet and outlet ports of each container and which connects, in a controlled manner, the respective inlet port of each container to a pressurized source of cold water, and each container, at least in a respective upper volume thereof, and in the air-tight connection, containing a gas, and whereby cold water which is introduced into the first container via the manifold displaces gas via the air-tight connection from the first container into the second container thereby to expel warm water from the second container through the respective outlet port.

Abstract: A high-efficiency water boiler includes a shell and a heating unit located in the shell. The heating unit includes a heating tank filled with fuel and a heater for heating the fuel. A containing unit includes a container provided around the heating tank. A heat conduction unit includes heat conduction pipes leading to the container from the heating tank to transfer heat to the container from the heating tank. A cooling unit includes a heat exchanger for cooling the fuel going therein from the heating tank. An inlet pipe extends through the heat exchanger and includes an end connected to a leading section of the container so that water can go into the container through the inlet pipe. An outlet pipe is connected to a tailing section of the container so that the water can leave the container through the outlet pipe.

Abstract: An accumulator tank for handling a heat transfer medium, is disclosed having a tank top section and a bottom section. The accumulator tank is connected to at least one heat emitting system and at least one heat-absorbing system. The accumulator tank has a plurality of partition walls located inside the tank and arranged between the bottom section and the top section for the purpose of dividing the tank into a plurality of spaces. The systems being each connected to at least one respective space so that a temperature gradient is created between the bottom section and the top section. Also disclosed is a system for distributing and handling heat and/or cold, including the accumulator tank.

Abstract: A bi-heating hot water tank comprising a first compartment including a water inlet for receiving cold water, and a second compartment including a heating element for heating water. The two compartments are in fluid communication with each other whereby the second compartment receives the water from the first compartment. The hot water is discharged from the second compartment using a conduit that passes within the first compartment prior to exiting the water tank to preheat the water in the first compartment prior to entering the second compartment. This arrangement allows for reducing the operation time of the heating element, and for providing hot water at higher temperatures and for longer periods of time.

Abstract: Apparatus and methods for protecting a boiler and heating system from damage comprising a control board having inputs and outputs, a processor having inputs and outputs, at least one ambient sensor in communication with the processor, at least one boiler sensor in communication with the processor, a power failure relay, the power failure relay being in communication with the processor wherein the power failure relay is capable of detecting power failure of the boiler, an alarm relay connected to the control board by the at least one output and which is capable of sending notification to an alarm system. When an ambient temperature detection event occurs the ambient sensor communicates with the processor and switches the control board from passive mode to monitoring mode.

Abstract: Hot liquid dispenser includes a housing including first and second liquid-retaining chambers, the first chamber being accessible to enable liquid to be placed therein and the second chamber being situated within a closed interior space of the housing. A heating system heats liquid in the first chamber without directly heating liquid in the second chamber. A conduit system allows only a one-way flow of liquid from the first to the second chamber and also prevents formation of a fluid connection between liquid in the first and second chambers. The dispenser includes a dispensing system having an outlet from which liquid placed into the first chamber is dispensed without continuous fluid movement of the liquid from the first chamber through the second chamber to the outlet such that liquid is retained in the second chamber without a fluid connection to the first chamber and without flowing toward the outlet.

Abstract: A system for heating water which includes a first container and a second container, an air-tight connection between upper ends of the first and second containers, each container including a respective water heating element, and a water outlet port and a water inlet port, a manifold which is operatively connected to the respective inlet and outlet ports of each container and which connects, in a controlled manner, the respective inlet port of each container to a pressurised source of cold water, and each container, at least in a respective upper volume thereof, and in the air-tight connection, containing a gas, and whereby cold water which is introduced into the first container via the manifold displaces gas via the air-tight connection from the first container into the second container thereby to expel warm water from the second container through the respective outlet port.

Abstract: A tank for retaining and heating water is defined by tank walls, including a bottom wall portion comprised of stainless steel. The tank has a water inlet and a water outlet for dispensing hot water. An aluminum intermediate plate is brazed to the lower surface of the bottom wall portion. A heating element secured within a heat conductive sheath, is brazed to the intermediate plate. A baffle is positioned within the walls of the tank, dividing the tank into an upper water reservoir and a lower preheating chamber, the baffle having at least one open portion defined therethrough.

Abstract: A thermal storage unit having at least one conduit around which a cast is made is provided. The thermal storage unit uses conventional piping or tubing to create conduits that economically maximize the surface area of flow in contact with the thermal mass by proving multiple passes for the fluid through the cast. This enables the thermal storage unit to economically provide heat storage as well as effective heat delivery and pressure containment for a fluid flowing through the conduit.

Abstract: A vertical water heater includes a machine body installed therein with plural quartz heating tubes respectively composed of a quartz external tube having its opposite ends sealed and a quartz internal tube positioned in the quartz external tube. Each quartz internal tube is provided with a remote-infrared-ray heating member in the interior and has one end connected with an electrode terminal. Each quartz external tube has its lower wall bored with plural water intakes 212 and its upper wall bored with vapor vents. The machine body has its bottom provided with a water inlet and a water outlet and its topside bored with an exhaust vent having a pressure release valve assembled thereon. The vertical water heater carries out heat conduction by vapor and by light and heat radiation, impossible to produce water stains and able to economize energy.

Abstract: A heating system for heating fluid media including a carrier unit, a heating unit arranged on the carrier unit and a heat transfer element arranged on the carrier unit and includes a material which is a good conductor of heat, which heat transfer element has a first mounting portion for mounting a first safety device which responds at a first response temperature and a second mounting portion for mounting a second safety device which responds at a second response temperature which is lower than the first response temperature, which heat transfer element has a first temperature pickup portion which is in direct heat-conducting contact with the heating unit and the first safety device. The heat transfer element has a second temperature pickup portion is spatially separate from the first temperature pickup portion and in heat-conducting contact with the medium to be heated and the second safety device.

Abstract: A representatively pumpless water heater system has an instantaneous water heater coupled in series with a storage water heater by piping circuitry incorporating a bypass valve and a mixing valve and useable to route pressurized incoming cold water sequentially through the instantaneous and storage type heaters. A control system (1) operates the bypass valve to cause a selectively variable portion of the incoming cold water to bypass the instantaneous heater and flow to the mixing valve, and (2) operates the mixing valve to blend the bypassed cold water with hot water exiting the storage heater to maintain a predetermined temperature of heated water exiting the system. Another system embodiment adds a directional bypass valve operable by the control system to selectively divert to the mixing valve a portion of the heated water exiting the instantaneous heater for delivery to the storage heater.

Abstract: A tank for retaining and heating water is defined by tank walls, including a bottom wall portion comprised of stainless steel. The tank has a water inlet and a water outlet for dispensing hot water. An aluminium intermediate plate is brazed to the lower surface of the bottom wall portion. A heating element secured within a heat conductive sheath, is brazed to the intermediate plate. A baffle is positioned within the walls of the tank, dividing the tank into an upper water reservoir and a lower preheating chamber, the baffle having at least one open portion defined therethrough. A thermostat which activates the heating element to provide heat to the tank when the thermostat reads a temperature at or below a preset temperature is positioned on the tank wall below the midway point between the top and bottom wall of the tank and where a baffle is present in the tank, below the position of the baffle.

Abstract: An electric water heater has a tank portion in which water to be heated is stored. The stored water is heated by a vertically spaced plurality of electric heating elements extending into the tank interior. The heating elements are of unequal wattages, and serve unequal volume water zones, but provide equal heating wattage densities in each of the water zones.

Abstract: A water dispensing device includes a cold and a hot water tanks received in a housing, and a coupler coupled to the water tanks and coupled to a container. A device may be used for heating the water in the container to generate steam to the coupler, and another device may be used for cooling the steam to generate a distilled water to the water tanks. Two pumps may couple the tanks to a nozzle for outward supplying water. A device may be coupled to the container for evacuating the particles or the waste water from the container.

Abstract: A water heater adapted to avoid peak temperatures of delivered water comprises a plate heat exchanger (1) connected to a storage container (2) provided with interior reinforcing means (9-11. FIG. 1; 13-13′″. FIGS. 5-18) connecting opposite parts of the outer wall (2′) of the container (2). Even provided with a thin storage container wall this makes it possible to use a box shaped water heater design without risk of deformations due to variations in the water pressure. The reinforcing means may consist of stacked interconnected plates (13-13′″). e.g. having the same form and size as plates (12-12′″) used in a plate heat exchanger connected to the container (2).

Abstract: The present invention provides heating elements and methods for their fabrication and use. The heating elements of this invention include a spirally shaped structure having a plurality of spiral forms, and may contain a thermally conductive, electrically insulated polymeric coating, such as a fluorocarbon resinous coating of about 0.001-0.020 in. in thickness. The preferred spirally shaped heating elements of this invention provide a lower, preferably substantially lower, flux or watt density than that for a Tubular Heating Element of substantially similar Active Element Volume (in3), wherein said spirally shaped heating element has the same or greater overall wattage rating (total watts) than the Tubular Heating Element. The heating elements of this invention preferably have an Effective Relative Heated Surface Area of about 5-60 in2/in3, with a target range of about 20-30 in2/in3, but can generate a heat flux of about 10-50 w/in2.

Abstract: A water heater apparatus for aircraft applications has three water heating tubes joined in series interconnection and positioned in side-by-side adjacency, where each of the tubes provides an electrical resistance heater part of a 3 phase electrical power circuit. Each tube also has a thermostat, and an electrical circuit breaker. The thermostats establish an open electrical circuit if water temperature exceeds a temperature set point. The circuit breakers establish an open circuit if electric current flow exceeds an electrical current set point. The apparatus uses a pressure check valve to expel pressure from the water heating tubes when pressure exceeds a water pressure set point. A temperature sensor is positioned for sensing water temperature at a water outlet and an ultrasonic water flow sensing switch identifies water flow in the water heating tubes.

Abstract: A water heater apparatus for aircraft applications has three water heating tubes joined in series interconnection and positioned in side-by-side adjacency, where each of the tubes provides an electrical resistance heater part of a 3 phase electrical power circuit. Each tube also has a thermostat, and an electrical circuit breaker. The thermostats establish an open electrical circuit if water temperature exceeds a temperature set point. The circuit breakers establish an open circuit if electric current flow exceeds an electrical current set point. The apparatus uses a pressure check valve to expel pressure from the water heating tubes when pressure exceeds a water pressure set point. A temperature sensor is positioned for sensing water temperature at a water outlet and an ultrasonic water flow sensing switch identifies water flow in the water heating tubes.

Abstract: A miniature water heater apparatus has three water heating tubes joined in series interconnection and positioned in side-by-side adjacency. The water heating tubes are enclosed within a cylindrical container with opposing closed ends. A top and a bottom cylindrical covers are adapted for mounting over the top and bottom surfaces establishing a top and a bottom utility volumes. The top utility volume encloses an electrical control circuit providing logical control of the apparatus while the bottom utility volume provides access to the electrical resistance heaters and a temperature range switch. A wire access tube communicates between the opposing closed ends of the cylindrical container for providing circuit wire communication between the control circuit and the resistance heaters.

Abstract: The present invention provides heating elements and methods for their fabrication and use. The heating elements of this invention include a spirally shaped structure having a plurality of spiral forms, and may contain a thermally conductive, electrically insulated polymeric coating, such as a fluorocarbon resinous coating of about 0.001-0.020 in. in thickness. The preferred spirally shaped heating elements of this invention provide a lower, preferably substantially lower, flux or watt density than that for a Tubular Heating Element of substantially similar Active Element Volume (in3), wherein said spirally shaped heating element has the same or greater overall wattage rating (total watts) than the Tubular Heating Element. The heating elements of this invention preferably have an Effective Relative Heated Surface Area of about 5-60 in2/in3, with a target range of about 20-30 in2/in3, but can generate a heat flux of about 10-50 w/in2.

Abstract: A process for the manufacturing of a pressure vessel made from a thermoplastic material or a thermosetting resin. The vessel comprises a first and a second vessel end part, and possibly an intermediate tube part. The vessel end parts include a circumfering shell (4) and each one dome (3). A number of partition and load distributing walls (5) stretch from the domes (3) towards the open part of each vessel end part. The possible intermediate tube part includes similar walls (5). The edges of the walls (5) will meet when the different parts are joined. A number of cells (6) are formed between the walls (5). A number of crossing areas are formed between intersecting walls (5). At least one crossing area is provided with a determination by achieving a hole (14) from the outside of the dome. The hole (14) is bigger than the crossing area and has a depth greater than thickness of the dome part (3).

Abstract: An electrically powered water heater includes a plurality of heating elements for substantially instantaneous heating of fluid passing through the heater. A controller for powering the plurality of heating elements is responsive to a temperature sensor in fluid communication with the heated fluid. The temperature sensor activates each of the plurality of heating elements for a predetermined period of time that is preferably no more than 32 half cycles. The controller activates a second heating element after a delay of preferably no more than 8 half cycles after activating a first heating element. The predetermined period of time for activating each of the plurality of heating elements may be substantially equal, such that each heating element contributes substantially equally to the heating of fluid. In one embodiment, the heater housing is provided with a plurality of chambers, and a heating element is provided within each of the plurality of chambers.

Abstract: The body structure of a fluid storage apparatus, which may be used for both liquids and gases, is formed from a coaxially and sealingly joined series of one-piece molded polymeric body sections including opposite end sections having closed outer ends. Each one piece molded polymeric body section has tubular inner and outer shell portions that are coaxial with one another and radially separated by a circumferentially spaced series of radially extending ribs molded integrally therewith and defining therebetween a circumferentially extending series of arcuate insulation spaces. In the assembled body structure the inner shell portions entirely define in the apparatus an internal fluid storage vessel portion that is useful in storing both liquids and gases. The interior fluid storage vessel is outwardly enveloped by the insulation spaces and structurally reinforced, via the integral ribs, by the outer shell sections.

Abstract: The steam generating system utilizing a first container having a liquid chamber. The first container is surrounded by a conducting coil for generating a field and producing eddy currents on the container. Steam produced in the first container is sent to a second container which is similarly heated by an induced eddy current. Steam in the second container is superheated for use.

Abstract: An electric water heater including a control unit, and a heating unit having a water container and an electric heating coil inside the water container and being controlled by a control unit, wherein a perforated heat-conductive cylinder is mounted inside the water container around the electric heating coil to separate the inside space of the water container into a heating chamber on the inside and a pre-heating chamber on the outside; a perforated heat-conductive collar is mounted around the cylinder to separate the pre-heating chamber into a primary pre-heating chamber at the bottom and a secondary pre-heating chamber at the top; the solid-state variable resistor of the control unit has a heat sink attached to a water accumulation chamber of the cold water pipe which guides cold water to the primary pre-heating chamber, which heat sink transmitting heat from the solid-state variable resistor to cold water in the water accumulation chamber.

Abstract: An electric water heater has a body structure formed in a manner eliminating the need for a separate metal water storage tank therein. The body structure is formed from a coaxially and sealingly joined series of one-piece molded plastic body sections including opposite end sections having closed outer ends. Each one piece molded plastic body section has tubular inner and outer shell portions that are coaxial with one another and radially separated by a circumferentially spaced series of radially extending ribs molded integrally therewith and defining therebetween a circumferentially extending series of arcuate insulation spaces. In the assembled body structure the inner shell portions entirely define in the water heater an internal water storage vessel portion that is outwardly enveloped by the insulation spaces and structurally reinforced, via the integral ribs, by the outer shell sections.

Abstract: A heated water apparatus which includes a reservoir for retaining a quantity of heated water and a controller for controlling the heated water apparatus. A controllable heater is coupled to the controller and the reservoir for controllably heating the water retained in the reservoir. A water sensor is coupled to the reservoir and to the controller for detecting the presence and absence of a desired quantity of water in the reservoir and providing a signal to the controller. The controller controls a water source which controllably admits water to the reservoir. The controller also controls an outlet valve coupled to the reservoir. The controller operates the inlet valve and the outlet valve to control the flow of water through the outlet valve in response to the presence and absence of water in the reservoir. When the water level is too low, the controller cycles the outlet valve for specific periods of time in order to allow the water level of the reservoir to catch up.

Abstract: A heating or cooling vessel for heating or cooling a fluid as it flows through the vessel includes an outer tubular shell and an inner tubular member mounted to the outer tubular shell. The inner tubular member includes a central passage defining a first flow path, and a space between the inner tubular member and the outer shell defines a second flow path which communicates with the first flow path at one end of the inner tubular member. A seal member is provided toward the opposite end of the inner tubular member, for cutting off communication between the first flow path and the second flow path. An inlet provides cool fluid to the first flow path, and the fluid circulates through the first flow path and into the second flow path for discharge through an outlet in communication with the second flow path.

Abstract: An improved self-contained pressurized water system for use in remote areas, vehicles, or whenever conventional sources of potable water are not readily available including at least one pressure detection switch for rendering system inoperative and incorporating a flow path for recirculation and aeration of stored water.

Abstract: A beverage brewing apparatus which includes a tank for containing heated water. Partitions are positioned in the heated water tank to define holding sections and a brewing section. Water is introduced into the holding sections of the tank and heated therein to a temperature of 180.degree.. Water retained in the heated water tank may pass from the holding sections around the partitions to the brewing section. A beverage holding reservoir is disposed in each of the holding sections of the tank so that heat from the water in the holding sections maintains a beverage disposed in the holding reservoirs at a desired temperature. A brewing assembly is associated with the holding reservoir and a dispensing head on a swing arm communicates with the brewing section and is positionable in relation to each of the brewing assemblies. A sensor and heater in the brewing section maintain the water retained therein at a temperature of 200.degree..

Abstract: The steam generating system utilizing a first container having a liquid chamber. The first container is surrounded by a conducting coil for generating a field and producing eddy currents on the container. Steam produced in the first container is sent to a second container which is similarly heated by an induced eddy current. Steam in the second container is superheated for use.