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| Number | Title | Issue Date |
| 7965929 | 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 se... | 06/21/2011 |
| 7936982 | Heated spray painting system A system and device for spray painting using a flow of pressurised carrier fluid comprises a central source of the carrier fluid and one or more local elements for heating the fluid close to the point of use. ... | 05/03/2011 |
| 7409925 | Water heater foam dam and component cover and method for covering a component of a water heater A foam dam is provided for use with a water heater having a tank and a jacket together defining an annular region. The foam dam includes a central region having a surface configured to cover a component coupled to the tank. The foam dam also includes a perimeter reg... | 08/12/2008 |
| 7203418 | Electric water heater with hot water outlet dip tube An electric water heater including a water container; an element associated with the water container to heat water in the water container; a cold water inlet associated with the water container; a hot water outlet associated with the water container; and a dip tube ... | 04/10/2007 |
| 7171111 | Method of heating water with rod shaped electrodes in a two-dimensional matrix An improved scheme for dissociating water into hydrogen and oxygen is provided in which a two dimensional matrix of electrodes is provided in a reaction vessel. The electrodes are connected to a source of electrical power for providing a potential difference there b... | 01/30/2007 |
| 7163126 | Heated water control system, method, and apparatus An apparatus, system, and method for precise dispensing of a desire volume of liquid. The present system allows incorporation of brewer control and a faucet in an accurate volume dispensing system. The dispensing apparatus is used in combination with a beverage make... | 01/16/2007 |
| 7155753 | Control device for sanitary device for toilet assembly A control device for a sanitary device for a toilet assembly which reduces the size of a control case and increases the damp-proof characteristics of an electrically conductive member by restricting the invasion of water, urine, and moisture content. The control dev... | 01/02/2007 |
| 7126294 | Method and device for controlling photovoltaic inverter, and feed water device A photovoltaic inverter control method includes steps of monitoring a variation in output voltage of a solar battery by a power and voltage monitoring circuit (51) and, when the variation occurs, accelerating or decelerating an electric motor (3) to ma... | 10/24/2006 |
| 7112768 | Temperature control system for a bathing unit A temperature control system for a bathing unit that includes a water holding receptacle and a heating module. The temperature control system comprises a plurality of actuators associated to the heating module and a temperature regulation device in communication wit... | 09/26/2006 |
| 7099572 | Water heating system and method for detecting a dry fire condition for a heating element A water heating system has a tank, a heating element, a temperature sensor, and a controller. The heating element is mounted on the tank, and the temperature sensor is mounted on the heating element. The controller is coupled to the temperature sensor and is configu... | 08/29/2006 |
| 7027724 | Water heater and method of operating the same A storage-type water heater and method of operating the storage-type water heater. The water heater includes a water tank for storing water, at least one heating element to heat the stored water, a jacket surrounding at least a portion of the tank, and a control sys... | 04/11/2006 |
| 7027723 | Water heater electrical enclosure insert/foam dam Electrical components projecting outwardly from the storage tank portion of an electric water heater are shielded from foam insulation material being injected into an insulation space between the tank and an outer jacket portion of the water heater by a hollow, open... | 04/11/2006 |
| 7020386 | Recreational vehicle water heater A recreational vehicle water heater includes a tank for holding water to be heated and a heating element to heat the water in the tank. The tank has an inlet port and an outlet port. A cold water supply conduit is in fluid communication with the inlet port. A mixing... | 03/28/2006 |
| 6996336 | Economical heated grease storage tank A used cooking oil and grease storage tank is comprised of a plastic material such as, polyethylene. Advantageously, a metal heating element or member is secured to a top cover member of the tank and extends downward into the used cooking all and grease stored with ... | 02/07/2006 |
| 6957014 | Liquid heater A liquid heater comprising a plurality of storage compartments for containing liquid to be heated. The storage compartments being connected together in series and comprising at least a first end compartment for receiving liquid to be heated and a second end compartm... | 10/18/2005 |
| 6941064 | Heater for vacuum cleaners A heater for fluids including a housing made of a non-metallic material and having an internal cavity. The housing has an inlet and an outlet, each of which are in fluid communication with the internal cavity. An elongated electrical heating element is disposed with... | 09/06/2005 |
| 6931204 | Vacuum heat insulator, hot insulating device using vacuum heat insulator, and electric water heater In this vacuum heat insulator, an excellent heat insulating performance is obtained even at high temperature, and this excellent heat insulating performance is maintained for a long period. The hot insulating device and electric water heater using this vacuum heat i... | 08/16/2005 |
| 6917756 | Water heater electrical enclosure insert/foam dam Electrical components projecting outwardly from the storage tank portion of an electric water heater are shielded from foam insulation material being injected into an insulation space between the tank and an outer jacket portion of the water heater by a hollow, open... | 07/12/2005 |
| 6915069 | Temperature sensor assembly, water heater including the temperature sensor assembly, and method of sensing a temperature A temperature sensor assembly and method for use in a water heater. The temperature sensor assembly includes a sensor disposed within a non-planar base that at least partially defines a volume, a collector coupled to the base, and a reflector coupled to the base suc... | 07/05/2005 |
| 6836615 | Heat dissipation device and water heater including the same A heat dissipation device for mounting a heat-generating component to a heat sink, such as a water heater. The heat-dissipating device includes a base having a first surface configured to follow the shape of the heat sink and a second surface. At least one heat-diss... | 12/28/2004 |
| 6826356 | System and method for water heater protection The invention comprises a hot water heater system including a hot water tank, a hot water heater; a pressure relief device which is activated when the hot water heater system is in an overpressure or over-temperature condition; a relief line which is engaged when th... | 11/30/2004 |
| 6779435 | Machine for American style coffee for use on aircraft A machine for in aircraft dispenses hot beverages, such as coffee, American-style coffee, and tea, as well as to dispense hot and cold water. The machine includes a hydralic circuit and an electrical circuit, and has a parallelepiped structure including a structural... | 08/24/2004 |
| 6670584 | Spa electric heater system using multiple spa heaters A process of electrically heating a spa having electrically operated devices connected to the spa, such as one or more water pumps, lights, and at least two heaters, in an environment in which there is not enough current to operate all spa devices simulta... | 12/30/2003 |
| 6658204 | Door insulator with safety plug A water heater that includes a tank, an electrical component, and an electrical circuit. The tank defines a water chamber and includes an outer surface. The electrical component is coupled to the outer surface of the tank and extends from the outer surfac... | 12/02/2003 |
| 6646237 | Safety control circuit for electric water heater A safety control circuit for an electric water heater includes a voltage detection circuit, a current detection circuit, a load-resistance calculation unit, and a central processing unit. The load-resistance calculation unit calculates load-resistance ref... | 11/11/2003 |
| 6640052 | Dual temperature water dispensing device 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 a... | 10/28/2003 |
| 6640047 | Hybrid water heater with electrical heating unit and combustor In a hybrid water heater, a heat pump unit and a combustion heating unit are combined for heating water to be stored in a hot water tank. The combustion heating unit includes a combustor for heating water in a chamber by combustion operation. The chamber ... | 10/28/2003 |
| 6606452 | Hot water heater anode A bi-metallic anode is disclosed for use in small hot water heaters such as in recreational vehicles, motor homes and the like. The anode includes a threaded portion and a shaft formed from a relatively non-corrosible metal such as steel, A second section... | 08/12/2003 |
| 6560409 | Hot water heater stacking reduction control A control system for a hot water heater includes a reservoir for containing hot water, a cold water feed for the reservoir, a hot water exit for the reservoir and means for supplying energy to heat water in the reservoir. A temperature monitoring probe as... | 05/06/2003 |
| 6465764 | Water heater and control system therefor A water heater having a water tight tank (10) with a cold water inlet (14) and a hot water outlet (16). First and second heating elements (24, 26) are mounted in the upper and lower portions of the tank (10). A controller is provided for energizing elemen... | 10/15/2002 |
| 6430366 | Water heating appliance with tipover and float switches One hundred volt AC power is conducted from a plug to a heater of a water tank through 100V lines. The 100V lines are provided with an electricity supply controlling element. Direct current 5V is conducted from the 100V lines to a microcomputer 15 through... | 08/06/2002 |
| 6282372 | Multi-position point of use electric water heater A point-of-use electric water heater is provided with a unique configuration permitting it to be selectively used in (1) a wall or ceiling-mounted horizontal orientation, (2) a floor or wall-supported vertical orientation, or (3) a wall-supported inverted... | 08/28/2001 |
| 6266484 | Water heater made of pressure-resistant plastic material A water heater made of plastic material comprises an external case (7) and a main body (2) including two semi-shells (2a,2b) soldered to create a body which can withstand temperature and pressure. The two semi-shells (2a, 2b), each of which is fitted with... | 07/24/2001 |
| 6240249 | Electric water heater with simplified phase conversion apparatus An electric water heater is provided with simplified phase conversion apparatus including a terminal structure having replaceable line lug portions which are wired to a single phase row of multi-pin connector sockets by single phase routing circuitry, and... | 05/29/2001 |
| 6208806 | Electric water heater control A domestic water heater 10 includes a water meter 14 to count the units of water used each day and has a timer 17 to time the heating cycle each day. A programmable means 18 stores the water usage and heating data for a sixty day period and using statisti... | 03/27/2001 |
| 6169273 | Dynamic recirculation system for heating and storing emulsified fuel oil A dynamic recirculation system for heating and storing emulsified fuel oil includes: a recirculative heater provided on a feed pipe for feeding emulsified fuel oil into a daily storage tank, and a feedback pipe connected to an outlet pipe of the tank for ... | 01/02/2001 |
| 6164189 | Heated water dispensing system A heated water dispensing apparatus has been described. The heated water dispensing apparatus includes a reservoir for retaining a quantity of water, a selector for selecting a temperature of water and a volume of water to be dispensed, and a controllable... | 12/26/2000 |
| 6137955 | Electric water heater with improved heating element A water heater heating element including a base member adapted to extend through and sealingly engage a wall of a water heater tank, the base member having a recess; a thermistor positioned in the recess; members connected to the thermistor and extending ... | 10/24/2000 |
| 6115542 | Device for and method of storing and discharging a viscous liquid In a device for and method of storing and discharging a viscous liquid at least one mixing chamber is formed in a storage chamber and communicates with said storage chamber for introducing the viscous liquid from said storage chamber in the mixing chamber... | 09/05/2000 |
| 6002838 | Device for storing and discharging of viscous liquid A device for storing and discharging a viscous liquid has a unit forming a storage chamber for storing a viscous liquid, a unit forming at least one mixing chamber which communicates with the storage chamber, and a unit for heating the viscous liquid in t... | 12/14/1999 |
