THERMOS PLUG Russian patent published in 1994 - IPC

FIELD: household equipment. SUBSTANCE: plug has a heating element located along the axis of the plug body and which has a vertical cylindrical case with a corrugated wall. A tube which falls short of the body bottom is mounted with a clearance inside the body to form a chimney. A gas duct is positioned in the body also with a clearance used as an air duct. A fuel vessel is fastened to the upper side of the gas duct, and a burner which falls short of the tube end is fastened to the other side. The side walls of the burner are engaged with the tube. EFFECT: improved structure. 2 cl, 2 dwg