Title: Thermoelectric water cooler or ice freezer

Abstract: 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.

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Inventors: Elfving, deceased, Thore M. (LATE OF San Mateo, CA, US)
Eleving, executor, by Claes T. (Cupertino, CA, US)
Elfving, Sven T. (Chicago, IL, US)

Application Number: 638830
Filing Date: 1975-12-08
Publication_date: 1977-10-25
Assignee:
Primary Class(es): 62/3.63 62/344
Other Classes:
US Patent Ref:

1969187	Aug, 1934	Schatt	62/238.
2910836	Nov, 1959	Karrer	62/3.
3008300	Nov, 1961	Ryan et al.	62/394.
3049892	Aug, 1962	Muffly	62/344.
3088289	May, 1963	Alex	62/3.
3149471	Sep, 1964	Boehmer et al.	62/3.
3175369	Mar, 1965	Murphy et al.	62/3.
3192726	Jul, 1965	Newton	62/3.
3250433	May, 1966	Christine et al.	62/3.
3324667	Jun, 1967	Muller	62/3.
3412566	Nov, 1968	Townsend et al.	62/3.
3552133	Jan, 1971	Lukomsky	62/3.

Other Refs: 1,351,990

Mar, 1963	FR

Primary Examiner: King, Lloyd L.
Assistant Examiner:
Attorney: