ELECTRIC HEATER (VARIANTS) Russian patent published in 2007 - IPC H05B3/30 

FIELD: electric engineering, in particular, electric heaters, which may be used for heating air, liquid and free-flowing substances, living and administrative premises, sports structures, frameworks, equipment, press-forms, and for drying materials.

SUBSTANCE: electric heater contains heating element of fibrous resistive material, electrically connected to current feeds, and is made in form of volumetric cell structure, produced by molding of heating element with current feeds in electric isolation, by pressing in press-form with insert elements, while current feeds are made in form of two metallic stripes, placed one on another, and connected between each other and to fibrous resistive heating elements, positioned between them, by spot or spot and additionally seam welding. Electric heater may also have volumetric frame structure of electric-isolating material, made of rectangular frames, mounted in form of vertical, central sections of cylinder with heating element with current feeds mounted in it, by holding current feeds on the frame.

EFFECT: invention ensures even heating temperature of various substances in wide range of temperatures, up to 1500°C, with high ecological characteristics.

2 cl, 10 dwg