초록 ▼

This invention relates to an improvement in the operation of a domestic refrigerator. The improvement comprises the addition of a mullion heater to heat an exterior surface by the passage of warm refrigerant through a tube mounted on the interior surface opposing the exterior surface. The tube is em

This invention relates to an improvement in the operation of a domestic refrigerator. The improvement comprises the addition of a mullion heater to heat an exterior surface by the passage of warm refrigerant through a tube mounted on the interior surface opposing the exterior surface. The tube is embedded in a malleable mastic substance of substantial thermal mass which is capable of maintaining the temperature of the exterior surface above the dew point of the surrounding air during periods when no warm refrigerant is passing through the tube.

대표청구항 ▼

An improved mullion heater for heating an exposed exterior surface of a wall of a refrigerator to prevent accumulation of condensation on said exposed exterior surface during periods of operation of said refrigerator, said mullion heater comprising a hollow metallic tube carrying warm refrigerant pr

An improved mullion heater for heating an exposed exterior surface of a wall of a refrigerator to prevent accumulation of condensation on said exposed exterior surface during periods of operation of said refrigerator, said mullion heater comprising a hollow metallic tube carrying warm refrigerant produced during periods when the compressor in said refrigerator is operating, said tube being mounted adjacent to, and in heat transfer relationship with an interior surface of said wall on a side opposite to said exposed exterior surface, said tube being embedded in a material of predetermined thermal mass, and a sheet of metallic material positioned flat on said interior surface, said sheet of metallic material being sandwiched between said wall and said tube and said material of predetermined thermal mass in contacting and heat transfer relationship therewith to evenly dissipate heat from the tube and said material of predetermined thermal mass across said internal surface of said wall through said wall and to said exterior exposed surface.