Electric heating – Heating devices – Combined with container – enclosure – or support for material...
Patent
1983-09-12
1985-11-05
Bartis, A.
Electric heating
Heating devices
Combined with container, enclosure, or support for material...
126361, 126362, 219301, 219306, 219312, 219318, 219331, 219336, H05B 102, H05B 382, F24H 120
Patent
active
045516138
ABSTRACT:
A rapid-heating electric water boiler includes a boiler vessel having an access opening at the lower portion thereof defined by a connecting flange. A boiler jacket surrounds the vessel but is spaced therefrom to provide a clearance filled with thermal insulation. A mounting flange is watertightly but removably attached to the connecting flange to close the access opening. A cold-water inlet pipe and a hot-water pass through the mounting flange into the vessel with the outlet pipe terminating in a free end adjacent the top of the vessel. A water-immersible metallic sheathed electric resistance heating element is attached to and in intimate thermal contact with the outlet pipe starting substantially from the lower end thereof at the flange and extending along at least a major portion of the length of the outlet pipe toward the free end thereof for simultaneously heating the water within the outlet pipe as well as the water in the vessel. The heating element is controlled by a thermostat having a sensor mounted on the interior of the mounting flange. To prevent overheating of the uppermost water levels in the vessel the sensor is thermally connected by a thermal conductor to the free end of the outlet pipe.
REFERENCES:
patent: 981481 (1911-01-01), Shoenberg
patent: 1734075 (1929-11-01), Christian
patent: 2446367 (1948-08-01), Graves
patent: 2507902 (1950-05-01), Graves
patent: 2977454 (1961-03-01), Volker
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