THERMOS FLASK Russian patent published in 1994 - IPC

FIELD: home appliances. SUBSTANCE: thermos flask comprises inner and outer flasks interconnected at the neck and forming a vacuum space between them, and insulation material disposed in said space. Said insulation material consists of foil screen and evacuating tube. The insulating screen has the form of a hollow cylinder with flanges at the top and bottom to keep it from shifting in radial and vertical directions. The upper flange is in contact with the conical part of the neck while the lower one, with the bottom of the outer flask. EFFECT: improved design. 4 cl, 3 dwg