| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 392449000 | Line connected tank | 62 |
| 20080240692 | Heat recovery device - A heat recovery device particularly for association downstream of devices suitable to heat water. The device is constituted by a tank provided with an inlet for recovering warm water from domestic drains and an outlet for draining toward the sewer. The tank has a set of tubes for water which arrives from the mains and is thus heated before being fed to devices such as a boiler, water heater, et cetera. The device therefore allows savings in water heating for domestic or industrial uses. | 10-02-2008 |
| 20090317068 | WATER HEATING APPARATUS - A water heating apparatus includes a water tank and at least one heating member mounted inside the water tank. The heating member includes a heating body, at least a multi-layer conductive coating of nano-thickness deposited on the heating body, and electrodes coupled to the multi-layer conductive coating. The multi-layer conductive coating includes a structure and composition which stabilize performance of the heating member at high temperature. The heating body can be made of ceramic glass in the form of a flat plate. | 12-24-2009 |
| 20100303453 | LINE FEEDTHROUGH THROUGH A HEATING KETTLE COVER OF A HEATING KETTLE OF A REDUCING AGENT TANK - The invention relates to a line feedthrough through a heating kettle cover of a heating kettle of a reducing agent tank. At least one line penetrates an opening of the heating kettle cover and is sealed by means of a sealing element. It is provided that the sealing element is configured as an elastic plug sealing stopper, which is inserted in a holder associated with the heating kettle cover in a sealing manner. | 12-02-2010 |
| 20100329650 | HOT WATER SUPPLY SYSTEM FOR CONSTANTLY MAINTAINING TEMPERATURE OF HOT WATER - The present invention relates to a hot water supply system that heats low-temperature water flowing into an inlet at a high temperature by using a heating device and supplies the high-temperature water through an outlet. The hot water supply system according to the present invention includes a heat exchanger that transmits heat of the heating device to the inflow water so as to supply the inflow water at a user set temperature; a flow sensor that measures a flow rate of the water flowing into the hot water supply system; a water tank that stores water discharged from the heat exchanger, a temperature sensor that is installed at a predetermined position on a pipe through which the water flows; and a controller that has an input unit to allow a user to input desired conditions, wherein the controller controls the operation of the heating device by comparing the user set temperature with a temperature measured by the temperature sensor and controls the operation of the heating device depending on variation in the flow rate measured by the flow sensor. | 12-30-2010 |
| 20110135289 | WATER HEATING SYSTEM WITH POINT-OF-USE CONTROL - A water heater system includes an intermediate water heater having a storage tank in which water is initially received at an initial temperature. The intermediate water heater is controllable to heat the water to an intermediate temperature that is higher than the initial temperature. The water heater system also includes at least one point-of-use water heater coupled to the intermediate water heater for receiving the water from the intermediate water heater after the water has been heated to the intermediate temperature. The point-of-use heater is controllable to heat the received water to a point-of-use temperature, the point-of-use temperature being higher than the intermediate temperature. | 06-09-2011 |
| 20110176792 | STORAGE TANK ASSEMBLY AND SYSTEM FOR STORING WASTE COOKING OIL - A storage tank and method for monitoring thereof is provided. The tank includes a first panel that defines a mounting surface for carrying a heating element. The heating element extends into the tank for heating liquids stowed therein. A sidewall interconnects the first panel and a spaced-apart second panel. A support extends from a bottom-facing surface of the second panel for supporting the tank in a spaced-apart relation from a nearby surface. The support further defines an upward-facing pocket for receiving a portion of the heating element. A control system may monitor the storage tank and alert a service provider of operative conditions thereof. | 07-21-2011 |
| 20120195577 | HOT WATER SUPPLYING DEVICE AND REFRIGERATOR HAVING THE SAME - Disclosed are a heater and hot water supplying device having the same. A temperature stabilizing unit is formed by arranging an inlet and an outlet of a water container close to each other. Under this configuration, cool water introduced into a water path of the water container via the inlet serves to cool hot water to be discharged via the outlet of the water container. This may prevent the hot water from being overheated to temperature more than a preset value. As a result, this may prevent damage of thermal lines of a heating element, due to overheating, the overheating occurring as water inside the water container is overheated. | 08-02-2012 |
| 20130034344 | On-Demand Water Heating System - 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. | 02-07-2013 |
| 20130094840 | Tankless Water Heater - A water heater ( | 04-18-2013 |
| 20130302020 | HEATING DEVICE FOR ELECTRIC WATER HEATER - A heating device for an electric water heater, especially a heating device that can effectively recover waste heat, the device includes a secondary water box provided on one of the top and the bottom sides of a flat type main water box, the secondary water box is communicated with the main water box to guide water of the secondary water box into the main water box; the main and the secondary water boxes are provided therebetween with a laminate electric heating board of which the top and the bottom sides are clung respectively to the secondary water box and the main water box, an effect of preheating the water in the secondary water box is obtained to thereby effectively use the waste heat for saving energy source, and heating efficiency can be increased. | 11-14-2013 |
| 20140003801 | WATER HEATING SYSTEM | 01-02-2014 |
| 20140016917 | Electric Water Heater Having Filtering Device - 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. | 01-16-2014 |
| 20140086565 | SELECTIVE WATER TEMPERATURE COMPONENT FOR USE WITH WATER TREATMENT SYSTEMS - A water heating system is provided. The water heating system includes an inlet connectable to a supply of untreated water, supply and return lines connectable to a point-of-use water treatment system, and an output for dispensing a supply of treated and optionally heated water. An internal heating element is adapted to heat the treated water to one of a plurality of pre-selected temperature settings. Temperature control can be achieved by cycling the power applied to the heating element and/or controlling the flow rate of treated water through the heating element. The water heating system includes additional improvements in electrical compatibility, energy consumption, and remote failure detection. | 03-27-2014 |
| 20140169774 | WATER HEATING ASSEMBLY FOR A REFRIGERATOR APPLIANCE - A water heating assembly for a refrigerator appliance is provided. The water heating assembly includes a vacuum insulated container and a heating element received within a heated chamber of the vacuum insulated container for heating water therein. An inlet conduit is configured for directing water into the heated chamber, and an outlet conduit is configured for directing heated water out of the heated chamber. | 06-19-2014 |
| 20140301725 | Hot water snow removal apparatus - Apparatus utilizing a hot water supply for melting snow on any surface, while eliminating icy build up inside a sprinkler pipe line and sprinkler head comprising; a 2 way electronic computer controller plugged into a 220 volt electrical outlet; a hot water heater, electro mechanical principle assembly/reduced pressure zone backflow preventer, regulating the heat encompassing a heated underground recirculation manifold pipe lines and heated underground sprinkler pipe line assembly. | 10-09-2014 |
| 20140363147 | FIXED (AND SELECTIVELY FIXED) BYPASS PUMPLESS COMBINATION INSTANTANEOUS/STORAGE WATER HEATER SYSTEM - A representatively pumpless water heater system has an instantaneous water heater coupled in series with a storage water heater by piping circuitry incorporating a fixed (and selectively fixed) bypass useable to route pressurized incoming cold water sequentially through the instantaneous and storage type heaters. The fixed bypass can also route pressurized incoming cold water to mix with the heated water exiting the instantaneous heater for delivery to the storage heater. | 12-11-2014 |
| 20150147054 | Heater and Heating System - A heater and heating system for installation adjacent a valve to control temperature near the valve is disclosed. In an example, the heating system includes a housing having a heating chamber formed therein, the heating chamber configured to retain a heating fluid. The heating system also includes an electric heating element disposed in thermal contact with the heating chamber. The heating system also includes a connection to attach the heating chamber to the valve. | 05-28-2015 |
| 20160195284 | WATER HEATER HAVING A SUPPLEMENTAL PHOTOVOLTAIC HEATING ARRANGEMENT | 07-07-2016 |
| 392450000 | Plural serially connected compartments | 6 |
| 20100329651 | SYSTEM FOR AND A METHOD OF HEATING WATER - 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. | 12-30-2010 |
| 20120121237 | BI-HEATING WATER TANK - 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. | 05-17-2012 |
| 20130089309 | WATER HEATER - A water heater comprises an inner sleeve ( | 04-11-2013 |
| 20130230303 | Fluid Heater and Method of Use Thereof - 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. | 09-05-2013 |
| 20150093101 | BOILER FOR HOT WATER HEATING MATS - 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. | 04-02-2015 |
| 20160138811 | HOT WATER SUPPLY SYSTEM - The present invention achieves energy saving and a decrease in facility cost for a hot water supply device by dividing a water receiving tank. A hot water supply system comprising: a water receiving tank receiving water supplied from a water supply source; a hot water storage tank connected to the water receiving tank via a connection pipe and storing hot water and supplying hot water to a hot water supply load; and a hot water supply device supplying the water stored in the hot water storage tank. The water receiving tank including: a temperature non-raising water receiving tank storing water supplied from the water supply source, the temperature non-raising water receiving tank, a general water supply pipe performing general water supply being connected; a temperature raising water receiving tank storing the water supplied from the water supply source and supplying the stored water to the hot water storage tank; and a preheating device preheating the water stored in the temperature raising water receiving tank. | 05-19-2016 |
| 392451000 | With immersion heating element | 33 |
| 20080247740 | Device for Making a Beverage, Provided with a Water Boiler - A device for making a predetermined quantity of a hot beverage comprising a boiler chamber ( | 10-09-2008 |
| 20090028533 | Tank Heating System - The invention relates to a tank heating system, in particular for a urea tank of an internal combustion engine, comprising: a housing ( | 01-29-2009 |
| 20090074391 | Vertical water heater - 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 | 03-19-2009 |
| 20090214195 | PV water heating system - A system for heating water includes a first tank, a solar panel, a control circuit, and a second tank for receiving water from the first tank. There is a first resistive heating element in the first tank and a second resistive heating element in the second tank. The control circuit couples power from the solar panel to the second resistive heating element unless the water in the second tank is at a preset maximum temperature, then the control circuit couples power to the first resistive heating element. If the water in the second tank is below a preset maximum temperature and above a preset minimum temperature, then the control circuit couples power from the solar panel to both the first heater element and the second heater element. If the temperature of the water in the second tank is below a preset minimum temperature, then the control circuit turns on conventional heating means in the second tank. Water is withdrawn from the second tank for use. | 08-27-2009 |
| 20100034528 | Water heating apparatus and system - A fluid heating apparatus comprising a chamber for containing a quantity of fluid to be heated and a heating device in the chamber. The heating device comprises a hollow body having a flow inlet and a return outlet to allow a heating medium to flow through the hollow body. The hollow body has a first heat exchanging surface extending along the chamber between a fluid inlet and fluid outlet and defining a smooth, straight fluid passage between the inlet and outlet. The preferred apparatus takes the form of a thermosyphon and is particularly suited for use with a water storage tank, where it is arranged to cause thermosyphonic circulation of water between the thermosyphon and the tank. | 02-11-2010 |
| 20100290763 | MULTI-CHAMBER WATER HEATER - A water heater which includes a tank ( | 11-18-2010 |
| 20100322604 | PRECURSOR DELIVERY SYSTEM - A precursor source vessel for providing vaporized precursor to a reaction chamber is provided. The precursor source vessel includes a lid having a first port, a second port, and a third port. The precursor source vessel also includes a base removably attached to the lid. The base includes a recessed region formed therein. One of the first, second, and third ports is a burp port configured to relieve the head pressure within the source vessel after the source vessel is installed but prior to use of the source vessel in semiconductor processing. | 12-23-2010 |
| 20110311209 | TRANSPARENT FLUID RECIRCULATION RESERVOIR SYSTEM - A method for channeling hot/warm working fluid includes coupling a first fluid supply path in flow communication with an inlet of a first transparent fluid reservoir to a fluid inlet valve, coupling an outlet of the first transparent fluid reservoir in flow communication to a fluid outlet supply path, coupling a second fluid reservoir in flow communication with the first transparent fluid reservoir, and coupling a second fluid supply path in flow communication with an outlet of the second fluid reservoir to a fluid outlet valve. The method also includes directing working fluid of a temperature that is above a minimum threshold temperature from the fluid inlet valve to the fluid outlet supply path through the first transparent fluid reservoir, and directing working fluid of a temperature that is below the minimum threshold temperature from the first transparent fluid reservoir to the fluid outlet valve through the second fluid reservoir. | 12-22-2011 |
| 20120224837 | SOLDER BATH AND METHOD OF HEATING SOLDER CONTAINED IN THE SOLDER BATH - A solder bath comprises a solder bath main body containing lead-free solder. A heating member heats the solder and is mounted on outer surfaces of a bottom and sides of the solder bath main body. The heating member contains a thermal diffusion member that is made of stainless steel, a porous heat insulator that is mounted on and attached to the thermal diffusion member, and a heating element that is buried in the porous heat insulator. The heating element is also away from the thermal diffusion member. The thermal diffusion member is heated by heat of the heating element to heat the solder bath main body evenly through thermal diffusion from the thermal diffusion member up to a constant range of temperature and the solder contained in the solder bath is heated evenly to a constant range of temperature. | 09-06-2012 |
| 20120237190 | WATER DISPENSER CONTROL CIRCUIT AND CONTROL METHOD THEREOF - A water dispenser control circuit includes a detection circuit, a heating circuit, a water temperature sensing circuit, and a power circuit. The detection circuit is configured for detecting whether or not a user comes into a detection area. The heating circuit is configured for heating the water. The water temperature sensing circuit is configured for sensing the temperature of the water. The power circuit supplies power to the detection circuit, the heating circuit, and the water temperature sensing circuit. When the user comes into the detection area, the detection circuit controls the heating circuit to heat the water as the water temperature sensing circuit senses the temperature of the water greater than a preset temperature. | 09-20-2012 |
| 20130209078 | HOT BEVERAGE DISPENSING SYSTEM - A hot beverage dispensing system includes a heat transfer housing having an inner volume. A potable water line is disposed in the heat transfer housing, the potable water line including an inlet and outlet separated from the inner volume of the heat transfer housing. A heat transfer fluid is disposed in the inner volume. A heat source is connected to the inner volume heating the heat transfer fluid. A beverage dispensing mechanism is connected to the outlet of potable water line. The potable water line is separated from the inner volume of the heat transfer housing wherein water within the potable water line is indirectly heated to a predetermined temperature providing a hot water source to the beverage dispensing mechanism. | 08-15-2013 |
| 20130322860 | DEVICE FOR HEATING LIQUID AND GENERATING STEAM - The present disclosure relates generally to devices and systems to heat a liquid and/or generate steam from a liquid. In a specific embodiment, the present disclosure relates generally to devices and systems to heat a liquid and/or generate steam from a liquid using molecular friction and/or nucleation. The devices and systems of the present disclosure may be used in any application where a heated liquid or steam are required and operate at reduced energy costs and carbon footprints as compared to devices of the prior art. | 12-05-2013 |
| 20140010522 | TAP WATER DEVICE FOR STORING AND HEATING TAP WATER - The invention involves a tap water structure for storing and heating tap water. The tap water structure contains storage devices, such as a tap water storage tank, for storing a certain amount of tap water. The storage devices are equipped with a tap water input for adding tap water to the storage devices, as well as a tap water output for removing water from the storage devices. The tap water structure is equipped with heating elements that will warm the tap water stored in the storage devices. The storage devices also include a heat exchanger supply and a heat exchanger return, as well as an additional heat exchanger return; these can all be connected to an external heat exchanger unit. The tap water device includes regulators to return the tap water to the storage devices either via the heat exchanger return and/or via the additional heat exchanger return. | 01-09-2014 |
| 20140037274 | Pulsed Power-Based Dry Fire Protection for Electric Water Heaters - A water heater having an electric heating element therein is provided with apparatus for preventing dry firing of the heating element. The apparatus is operative to (1) power the heating element with electrical test pulses having first predetermined durations and being separated by rest periods of second predetermined durations during which the heating element is depowered, (2) determine the average electrical current flow through the element during each of the test pulses, and (3) preclude energization of the heating element if the average current flow therethrough during an electrical test pulse subsequent to the first test pulse is less by a predetermined magnitude than the average electrical current flow through the heating element during the first electrical test pulse. | 02-06-2014 |
| 20140153913 | Solar Photovoltaic Water Heating System - A solar photovoltaic water heating system is disclosed having a photovoltaic solar panel array, a storage tank containing water to be heated, a resistance heating element in the water to be heated. The water heating system matches the load resistance of the resistance heating element to the power that is available from the photovoltaic solar panel array in order to maximum energy transferred to the water in the storage tank. | 06-05-2014 |
| 20140161431 | RESERVOIR FOR TRANSMISSION FLUID - In one embodiment, an Automatic Transmission Fluid (ATF) reservoir is provided. The reservoir includes housing that is combined with a transmission containing ATF and into/out of which the AFT flows. The reservoir also includes a heating body that is combined with the housing and heats the ATF flowing within the housing by generating heat when power is applied. | 06-12-2014 |
| 20150104160 | PHOTOVOLTAIC DC HEATER SYSTEMS - Direct current solar electric heating elements can be powered by an array of photovoltaic panels. The direct current voltage can be low or high with proper electrocution protection. Insertable immersion heating elements can be placed into any existing, gas, propane or electric hot water tank, cooking pot or hot tub. Heating elements in air can also be used for heating ovens, range cook tops and sauna heaters. The output of the photovoltaic panel is interfaced to the electric heater element via either direct connection or using a load-matching controller which maximizes the power delivered to the heater under all sun conditions. The maximum heater temperature is regulated by a thermostat. | 04-16-2015 |
| 20150139630 | CONTROL SYSTEMS FOR RENEWABLE HOT WATER HEATING SYSTEMS - Provided herein are systems and methods directed to using renewable energy sources with hot water heating systems. | 05-21-2015 |
| 20150308712 | HIGH CAPACITY WATER HEATER - One embodiment includes a high capacity water heater assembly. The assembly includes a vessel with an inlet and an outlet, with water delivered to the vessel through the inlet. Also included is a heating element attached to the vessel for heating the water delivered to the vessel, an active mixing valve in fluid connection with the outlet of the vessel, and a water temperature sensor attached to the vessel to communicate data used for powering on and off the heating element. | 10-29-2015 |
| 20160040906 | HEAT PUMP WATER HEATER APPLIANCE - A water heater appliance includes a sealed system and an electric heating element. The sealed system and electric heating element are configured for heating water within an interior volume of a tank. A temperature sensor is mounted to the tank. The electric heating element is positioned below the temperature sensor within the interior volume of the tank. | 02-11-2016 |
| 392452000 | With baffle or guard | 1 |
| 20150110478 | HOT WATER HEATER WITH IN-TANK HEAT EXCHANGER TUBE - The invention relates to a hot water heater that includes a tank, one or more heating elements, one or more thermostats and one or more heater exchanger tubes. The tank has a water outlet and one or more water inlets. The one or more heating elements extend within the tank. The one or more thermostats function to control the energy applied to the one or more heating elements. The one or more heater exchanger tubes are positioned within the tank. Each heater exchanger tube has a first end with a first opening and a second end with a second opening and defines a channel between the two openings. The second opening in the channel opens into the tank. Each heater exchanger tube surrounds at least a portion of one heating element. The water inlet includes an opening into the heater exchanger tube for water to enter the heater exchanger tube. | 04-23-2015 |
| 392454000 | Plural heating zones | 6 |
| 20080205865 | HIGH EFFICIENCY, PEAK-POWER REDUCING, DOMESTIC HOT WATER HEATER - There is herein described a peak-power reducing domestic hot water heater comprising: a closed tank having a predetermined water holding capacity, a hot water outlet in a top end wall of said tank, a cold water inlet in a side wall of said tank adjacent a bottom wall thereof, three spaced apart resistive heating elements projecting substantially horizontally in said tank, each of said resistive heating elements having a temperature sensing element to enable a control of their respective activation; a bottom one of said resistive heating elements extending in said tank spaced slightly above said bottom wall and having a lowest power rating, said bottom resistive heating element being turned on when water is flowing into said cold water inlet and drawn out of said hot water outlet during a peak-power demand time period; a middle one of said resistive heating elements extending in said tank at a level which is calculated to be equal or above an average maximum daily water consumption volume drawn out during the peak power demand time periods; and a top one of said resistive heating elements extending between said middle element and said top end wall of said tank and having a highest power rating; said middle and said bottom resistive heating elements being activated simultaneously only when said top resistive heating element is inactive. | 08-28-2008 |
| 20110081138 | HEATING SYSTEM AND METHOD FOR MICROFLUIDIC AND MICROMECHANICAL APPLICATIONS - An integrated semiconductor heating assembly includes a semiconductor substrate, a chamber formed therein, and an exit port in fluid communication with the chamber, allowing fluid to exit the chamber in response to heating the chamber. The integrated heating assembly includes a first heating element adjacent the chamber, which can generate heat above a selected threshold and bias fluid in the chamber toward the exit port. A second heating element is positioned adjacent the exit port to generate heat above a selected threshold, facilitating movement of the fluid through the exit port away from the chamber. Addition of the second heating element reduces the amount of heat emitted per heating element and minimizes thickness of a heat absorption material toward an open end of the exit port. Since such material is expensive, this reduces the manufacturing cost and retail price of the assembly while improving efficiency and longevity thereof. | 04-07-2011 |
| 20120237191 | ELECTRIC WATER HEATING ELEMENT - The invention is an on-demand electric water heater which includes one heater housing having an electric cartridge heating element surrounded by at least one water heating chamber containing a partition member mounted on the top cover or base cover of the heater housing to define opposing flow passages along the longitudinal direction of the electric cartridge heating element such that as cold water enters the housing and proceeds along the opposing flow passages, heat generated by the electric cartridge heating element is absorbed by the incoming cold water flowing along the opposing flow passages to minimize heat losses from the on-demand electrical water heater. | 09-20-2012 |
| 20140241708 | ELECTRONIC CONTROL SYSTEM FOR ELECTRIC WATER HEATER - In an electric water heater having adjustable set point and differential temperatures, upper and lower heating elements, and associated temperature sensors respectively operative to sense upper and lower tank water temperatures, a specially designed control system is provided for controlling the heating elements. The control system is operative to automatically set a selected setpoint temperature to a second setpoint temperature less than or equal to a predetermined magnitude, and to reduced the second setpoint temperature and/or the differential temperature, as a predetermined function of the magnitudes of detected time intervals between successive heat demands of the water heater, to reduce the energy cost associated with the water heater. | 08-28-2014 |
| 20150131978 | HOT WATER HEATER WITH BULKHEAD SCREW FITTING - A hot water heater is provided and includes a tank, a cold water supply, a hot water outlet, and a heating element. The element has a component with incorporated screw bulkhead, plastic terminal block, resistor and Ultem sleeve. | 05-14-2015 |
| 20160138813 | SYSTEM FOR PRODUCING HOT WATER - The invention relates to a system for producing hot water, comprising a hot water reservoir, a first and a second resistance heating rod for heating the water in the hot water reservoir, a reservoir temperature sensor, and a control unit, by means of which the first resistance heating rod can be connected to a network alternating voltage source, wherein the system comprises a photovoltaic device for producing a direct voltage and the photovoltaic device can be connected to the second resistance heating rod by means of the control unit or a further control unit. | 05-19-2016 |
| 392455000 | With heating element mounting arrangements | 2 |
| 20140105585 | RESERVOIR FLUID HEATING DEVICES AND METHODS OF HEATING - A heater assembly for a fluid reservoir includes an outer housing coupled to a flange on the fluid reservoir, an inner tubular member disposed within the outer housing, the inner tubular member having a central passageway therethrough, wherein an annulus is formed between the outer housing and the inner tubular member, and a heating device coupled to a lower end of the outer housing and having heating elements which extend upwardly into the central passageway of the inner tubular member. | 04-17-2014 |
| 20160061488 | WATER HEATER APPLIANCE WITH AN ANGLED ANODE - A water heater appliance includes a tank with a sidewall. A boss is mounted to the sidewall of the tank, and an anode is mounted to the boss. The anode extends through the tank into an interior volume of the tank at an angle such that the anode avoids internal tank components of the water heater appliance. A related heat pump water heater appliance is also provided. | 03-03-2016 |
| 392457000 | With protecting means against galvanic corrosion | 4 |
| 20130089310 | PREVENTION OR REDUCTION OF SCALING ON A HEATER ELEMENT OF A WATER HEATER - The invention provides a method of using a water heater arranged for heating an aqueous liquid wherein the water heater comprises a heating element to heat aqueous liquid in the water heater. The method comprising (a) heating aqueous liquid in the water heater with the heating element, wherein the heating element is in contact with the aqueous liquid; and (b) applying a first AC voltage between the heating element and a counter electrode and applying a second AC voltage between the heating element and the counter electrode, wherein the second AC voltage has a second AC frequency selected from the range of 0.02 Hz-5 Hz and wherein the ratio between the first AC frequency and the second AC frequency is 2 or more. | 04-11-2013 |
| 20140334807 | DETERMINING HEATING ELEMENT AND WATER HEATER STATUS BASED ON GALVANIC CURRENT - Systems and methods for determining heating element and water heater status based on galvanic current are provided. An exemplary water heater includes a tank for holding a volume of water and an anode rod extending into the water. The anode rod has a core made of a conductive material. The water heater also includes at least one heating element configured to heat the water when energized. The water heater includes a current measurement circuit configured to generate a feedback signal describing a galvanic current flowing from the core of the anode rod to an electrical ground. The water heater also includes a controller configured to receive the feedback signal from the current measurement circuit and to control one or more operations of the water heater based on the feedback signal. | 11-13-2014 |
| 20140376899 | Cathodic Corrosion and Dry Fire Protection Apparatus and Methods for Electric Water Heaters - The metal tank portion of an electric water heater is protected against corrosion utilizing a corrosion protection system that detects a voltage potential between the sheath portion of a tank water-immersed electric heating element and the tank. In one embodiment of the corrosion protection system the sensed sheath/tank potential is utilized to enable a user of the water heater to accurately gauge the necessity of replacing a sacrificial anode extending into the tank. In another corrosion protection system, the sensed sheath/tank potential is utilized to provide impressed current cathodic protection of the tank and also to prevent dry firing of the electric water heater. | 12-25-2014 |
| 20160057810 | ELECTROCHEMICAL DESCALING BY PULSED SIGNAL REVERSAL - The invention provides a heater arrangement and method for heating a liquid, wherein the heater comprises a heating element, wherein the method comprises (i) heating the liquid in the heater wherein the heating element is in contact with the liquid, and (ii) applying a potential difference between the heating element and a counter electrode, wherein the potential difference has an AC component whereby the potential difference varies with an AC frequency in the range of 0.01-100 Hz and wherein the potential difference is applied with a cycle time, wherein the potential difference has a sign during a first part of the cycle time that is opposite of the sign of the potential difference during a second part of the cycle time, and wherein during one or more of the first part of the cycle time and the second part of the cycle time, the potential difference temporarily changes sign. | 02-25-2016 |
| 392458000 | With external heater | 1 |
| 392460000 | Producing radiation | 1 |
| 20150030318 | PORTABLE AIR CONDITIONING APPARATUS - An air conditioning apparatus is provided with an air plenum in fluid communication with an air inlet and an air outlet. A fan moves air through the air plenum. An interchangeable air conditioning core is removably installed within the air plenum and interposed between the air inlet and air outlet such that air moving along an air pathway is forced to proceed through the interchangeable air conditioning core. | 01-29-2015 |
| 392463000 | With timer controlled energization | 4 |
| 20090103907 | Method and device for water dispensers on sabbath - Water dispenser with separation between hot and cold water to prevent, temporarily, like on the Sabbath, heating incoming cold water with the hot water in the tank. Ability to temporarily prevent functioning of electronic taps and during such time manual taps would be operable. Ability to temporarily prevent the functioning of the thermostat that controls the water heating elements and during such time to enable the water heating elements to operate at a fixed pre-set temperature. | 04-23-2009 |
| 20140321839 | SYSTEM, METHOD, AND APPARATUS FOR HEATING - The present invention relates to a heating element controller | 10-30-2014 |
| 20160084526 | A METHOD FOR DETERMINING WHETHER A WATER HEATER APPLIANCE IS OPERATING WITH A TIMER SWITCH - A method for determining whether a water heater appliance is operating on a timer switch is provided. The method includes determining a power on time interval between a previous power interruption and a current power interruption if the current power interruption is a long power outage and establishing that the water heater appliance is not operating with a timer switch if the power on time interval is greater than a threshold time interval. A related water heater appliance is also provided. | 03-24-2016 |
| 392464000 | Off-peak power | 1 |
| 20140037275 | METHODS AND SYSTEMS FOR REMOTELY MANAGING WATER HEATING UNITS IN A WATER HEATER AND RELATED WATER HEATERS AND CIRCUITS - A method of managing electrical power storage can include remotely controlling operation of one of a plurality of water heating units included in a single water heater, separately from controlling a remainder of the plurality of the water heating units, at a customer location in response to a remotely transmitted indication. | 02-06-2014 |
