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OwnerThore M. Elfving, deceased, by Claes T. Eleving, executor +1inventors
InventorsThore M. Elfving, deceased, by Claes T. Eleving, executor, Sven T. Elfving
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A thermoelectric water cooler or freezer including a thermoelectric assembly having P-type and N-type semiconductor material connected by junction bridges on their hot and cold junction sides. Heat exchange means are connected to the hot junctions and heat exchange means may be connected to the cold junction sides. The cold junction or the heat exchange means associated with the cold junctions, such as fins, extend upwardly and are adapted to be submerged in the water to be cooled or frozen. If an ice freezer is desired, the water is cooled until it freezes to a predetermined thickness on the fins, at which time the electrical current through the thermoelectric assembly is either interrupted or reversed for a short time allowing the fin temperature to rise and release the ice which then floats to the surface of the water where it is available for use.
A thermoelectric water cooling or freezing assembly comprising semiconductor bodies of P-type and N-type semiconductor material each having hot and cold sides of predetermined area with similar sides adapted to be connected in series by junction bridges to form thermocouples, said junction bridges including thin sheet metal portions disposed edgewise with respect to the associated semiconductor body with one edge in conductive contact with the associated side of the semiconductor body and with the other edge adapted to be associated with heat exchange means to the surrounding media, characterized in that an individual heat exchange means is associated with each cold junction bridge, said heat exchange means facing upwardly and adapted to freeze at least one ice cube and container means are provided to hold water in heat exchange with each of said heat exchange means.
Dependencies are inferred from the claim text.