ELECTRIC HEATER Russian patent published in 2003 - IPC

FIELD: chemical, physical, medical, biochemical laboratories where heating or boiling of liquids in test tubes, flasks or other laboratory vessels is required in process of analysis. SUBSTANCE: electric heater has metal frame in the form of cylinder with base. Heat insulator is placed inside frame with heating element built-in its center, in lower part, that carries holder of reactor. Holder is provided with internal central vertical cavity which bottom is spherical and which walls are fitted with radial vertical cuts. Heating element is connected to power supply unit. Frame and base are perforated. Electric heater is also equipped with wire fixing arms of reactor and horizontal bar to anchor heater in physical stand is fixed on frame. EFFECT: provision for reliable and simple handling of electric heater in operation, provision for easy-to-grasp experiments. 3 cl, 2 dwg