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Individual
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Priority to ES109085UpriorityCriticalpatent/ES109085Y/en
Publication of ES109085UpublicationCriticalpatent/ES109085U/en
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Publication of ES109085YpublicationCriticalpatent/ES109085Y/en
Radiator for electric heating, characterized in that it consists of a square or rectangular frame formed by iron tubes of rectangular profile welded to two covers of the same material and in whose interior are housed some electric resistances in spiral calculated in order that they do not become incandescent thus producing the known black heat mode having the heads of said tubes pieces of refractory material that isolate the connection terminals from contact with metal parts and prevent the entry of air into the interior where they are housed brass studs that facilitate the connection of resistors with the bridges of the terminal boxes and in order to accumulate the heat received from the heating element and maintain the temperature for very long periods of time said tubes are filled with quartz material. (Machine-translation by Google Translate, not legally binding)
ES109085U1964-10-241964-10-24
A RADIATOR FOR ELECTRIC HEATING.
ExpiredES109085Y
(en)
Improvements in or relating to methods of and devices for mounting bare electrical resistance wires on an electrical insulating support, and heating apparatus resulting therefrom