Apparatus for controlling the temperature of a bottle

Apparatus for controlling the temperature of a bottle or the like, comprising

• (a) an outer container having a vertically arranged tubular wall portion open at its upper end, said tubular wall portion having an inner first diameter;
• (b) an impermeable inner container having a vertically arranged tubular wall portion open at its upper end, the outer diameter of the inner container tubular wall portion being less than said first diameter, said inner container being formed of heat-conducting material and being arranged in concentrically spaced relation within said outer container, the inner diameter of said inner container tubular wall portion being greater than the outer diameter of the bottle;
• (c) a first fluid medium aranged in the space between said inner and outer containers, said first fluid medium having a given initial temperature;
• and
• (d) heat energy transfer control means arranged in contiguous relation within a portion of said inner container, said control means being vertically displaceable between lower low heat transfer and upper high heat transfer positions to vary the operative heat transfer surface area of said inner container, whereby when the bottle is placed in said inner container, said control means controls the transfer of heat energy between the bottle and said first fluid medium through said inner container to control the temperature of the bottle.