A heater having a helical electrical resistance heating wire connected to and coiled around a current return wire. The heater is employed in thermal conduction heater wells used for removing contaminants from soil, groundwater or rock.


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    Title :

    FLEXIBLE HELICAL HEATER


    Additional title:

    FLEXIBLER SPIRALFÖRMIGER HEIZER
    DISPOSITIF DE CHAUFFAGE HÉLICOÏDAL FLEXIBLE


    Contributors:

    Publication date :

    2019-11-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht / F24H FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, IN GENERAL , Erhitzer für flüssige oder gasförmige Stoffe, z.B. Wasser- oder Lufterhitzer mit Vorrichtungen zur Wärmeerzeugung, allgemein



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