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7560672 |
Heated pump with boiling protection
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...
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7539402 |
Electrical liquid-heating appliance
An electrical household liquid-heating appliance includes a housing ( 10 ), electrical heating elements, a switch, a button ( 16 ) pivotable about an axis between an on position and an off position...
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7373080 |
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...
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7355147 |
Ice removal for a pond
A floating ice removal device with a disk shaped upper cover, a disk shaped lower cover and a heat emitting cup. An electric circuit board is mounted on an inner bottom of the lower cover, and a...
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7263283 |
Electronic thermostat for liquid heating apparatus
An electronic thermostat ( 20 ) has a mechanical switch ( 22 ) and a solid-state switch ( 24 ). The electronic thermostat ( 20 ) is suitable for use in a liquid heating apparatus, such as a coffee...
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7257321 |
Device for heating liquids
The invention relates to a device for heating liquids, comprising: a liquid container, at least one electrical heating element connected to the liquid container for heating liquid received in the...
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7257320 |
Method and apparatus for operating an electric water heater
A control system for an electric water heater having an upper heating element and a lower heating element includes a control module that controls operation of the electric water heater by...
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7221862 |
Control and method for operating an electric water heater
A water heater control for an electric water heater operates according to at least one fixed hardware and/or software temperature limit and a variable software temperature limit. The control...
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7103272 |
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...
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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...
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7049554 |
Adjustable heater for aquaria
An adjustable heater for aquaria, comprising a substantially tubular container ( 2 ) within which are housed an electrical heating element ( 3 ), a switch ( 6 ) comprising s fixed contacts ( 7, 8 )...
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7046923 |
Immersion heater device for aquariums and the like
An immersion heater device for aquariums and the like. The heater device has a casing which contains a heating element. The casing, at least in the region of a radiant zone of the heating element,...
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6936798 |
Programmable domestic water heating system
The invention relates to a method for heating water in a domestic water heating system that comprises the steps of: (a) providing a water tank containing mw liters of water; (b) providing at least...
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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...
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6909842 |
Instantaneous compact fluid heater
A fluid heater including a reservoir, an inlet-conduit assembly and an outlet conduit. The reservoir contains fluid and includes heating elements. The inlet-conduit assembly is mounted to the...
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6658205 |
Apparatus for adjusting temperature variation value correction of aquarium heating tube
An apparatus for adjusting temperature variation value correction of an aquarium heating tube and particularly an apparatus that is capable of adjusting temperature variation correction of an...
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6633727 |
Integrated heater and controller assembly
An integrated heater and controller assembly for monitoring and controlling the heating of a process in a reservoir is disclosed. The assembly includes a heater, a coupling adapter, a control unit,...
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6584280 |
Aquarium heater
An improved aquarium heater and particularly an aquarium heater that has a protective device adjacent to an electric heating coil to cut off the electric circuit when the heater is overloaded to...
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6577817 |
Water heater
A pressureless electric water heater for domestic use having a cylindrical double-walled tank for holding a quantity of a heat transfer liquid such as water. Cold water enters a copper coil...
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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...
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6393213 |
Thermostatic heater device for liquids, in particular for the water of aquariums
A thermostatic heater device for liquids, in particular for the water of aquariums, comprising within a tubular casing: a rigid support ( 2 ) constructed of electrically insulating, heat-conducting...
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6363218 |
Liquid heater load control
The invention relates to a device for controlling the power consumption of one or more electric resistance heating element in a vessel containing a heatable liquid, at least one inlet for receiving...
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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...
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6205292 |
Fluid heater
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6204623 |
Heater, humidifier or fan including a circuit for controlling the output thereof
A heater, humidifier or fan has a control circuit including a microcontroller having an algorithm for controlling power to the appliance. The power to the appliance is varied in accordance with a...
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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...
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6112013 |
Apparatus for detecting a crack in a heater of an acid and rinse bath and a method of crack detection of the same
A method and an apparatus for detecting the crack of a heater of an acid and rinse bath, acid and rinse bath is filled with acid solution, a heater is used to heat the acid solution. A heater is...
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6075923 |
Self-compensatory water heater sensitively responsive to temperature variations
A water heater includes: a reservoir having a feed pipe protruding inwardly into the reservoir for directing cold water into the reservoir; a main heater having a main thermostat sensor...
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6069998 |
Integral water heater and water temperature sensor
A screwplug type water heater (10) has a heating element (12) immersible in a water heater tank (T) to heat water (L). Electrical terminals (28) on the outer end of the heater connect the heating...
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6061500 |
Electronic heater for an aquarium
An electronic heater structure includes a tube body, a heating wire disposed on the bottom of the interior of the tube body and a temperature controlling circuit. The temperature controlling...
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6028294 |
Heater assembly
A heating assembly for imparting energy to a liquid which is enclosed in a vessel, is described and which includes a base plate borne by the vessel and having a first portion which has a given...
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5956462 |
Domestic electric energy control
An electric power distribution system that utilises radio signals from the power distributor to an appliance such as a water heater 1, to inform via a receiver 12, a micro processor 10 of the...
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5946448 |
Methods of assembling immersion heaters with heating elements in the form of printed circuit tracks
An immersion heater has a support plate on which there is provided an electrical heating element in the form of a printed circuit conductive track. The element is provided with a portion which...
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5933575 |
Water heating appliance for hottub or spa
A water heating appliance for use in a hottub or spa with said appliance consisting of an especially designed float-body with a safety shield which protrudes from the bottom of the body and also...
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5905849 |
Underwater heater for aquarium
An underwater heater for warming water in an aquarium comprises a thermal sensor for sensing temperature of a main heater body and a control unit for controlling operation of the main heater body...
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5844211 |
Contoured heating element
The present invention relates to an electric immersion heater utilized in heating liquids contained in a cylindrical container, such as a boiler. The immersion heater is affixed to the side of the...
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5834742 |
Heater for aquarium fish tank
In a heater unit comprising a case 10 which accommodates therewithin an electrical heating element 11 and a temperature sensor 12 for detecting the temperature of the case 10 heated by the...
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5834741 |
Temperature control heater with submersible glass tube liquid crystal (LSD) display
A temperature control heater with sink type glass tube liquid crystal (LCD) display, especially relates to a temperature control heater having a structure for display the temperature precisely, the...
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5829069 |
Jet bath having multiple accessories
A jet bath designed to use minimum water, to use a formed in place low cost waterfall type water inlet, to have pulsating and massaging air-water jets appropriately located in the tub, to allow...
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5793929 |
Immersion heaters with heating elements in the form of printed circuit tracks
An immersion heater has a support plate on which there is provided an electrical heating element in the form of a printed circuit conductive track. The element is provided with a portion which...
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5750960 |
Device for heating and maintaining a constant temperature in a liquid, in particular the water of aquariums
A device for heating the water in an aquarium comprises a casing, and housed in the casing, at least one heater element, a thermostat, an electrical circuit by way of which the heater element and...
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5692096 |
Protection and control of continuous boiling water units
A continuous boiling water unit is disclosed and comprises a water heating tank (1) containing an electric heating element (2) near the bottom of the tank (1) and a level control tank (3) mounted...
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5666808 |
Operating valve assembly with pressure compensation valve
An operating valve assembly incorporates a pressure compensation valve and is capable of contributing down-sizing of a hydraulic circuit. The valve assembly includes an operating valve,...
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5666804 |
Secondary air supplying apparatus for internal combustion engine and air heating apparatus thereof
A secondary air supplying apparatus for an internal combustion engine and a gas heating apparatus are provided to enable high-performance exhaust gas purification in a catalytic apparatus of the...
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5568587 |
Electronic immersion aquarium heater with spring biased NTC sensor
An electronic immersion heater includes a tube closed at one end that contains in succession from its bottom to its open end: a heating element, an electronic circuit board with the corresponding...
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5459812 |
Immersion heaters including sheet metal heat conduction link
An immersion heater includes a heating element having a return portion around which is wrapped a thermally conductive link. The link extends through a plastic head and seal member, by which the...
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5408579 |
Electric element assembly
An electric heating assembly for use with an electric kettle or similar liquid heating apparatus has a resistance heating wire disposed within a metal sheath and connected to pins which project...
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5404421 |
Fuel heating element mounting plug housing a thermostat
A combined heating element and thermostat for use in a water heater. An electrical heating element includes a U-shaped rod having first and second legs, the first leg being longer than the second....
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5392380 |
Thermostatically controlled electric aquarium heater having an adjustable overtemperature safety bimetallic circuit breaker
An aquarium safety heater includes an adjusting screw rotatably held in a packing plug which is sealably secured in an upper portion of glass tube. A heating coil, a thermostat, a bimetal circuit...
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5386100 |
Control arrangement for immersion liquid heaters
An electric immersion water heater comprises a vessel with a heating element having cold tail ends extending individually through a side wall of the vessel. Temperature sensing elements sense...
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