Sven T Elfving

40550532, Oct 25, 1977

Dec 8, 1975

5/638830

Thore M. Elfving - LATE OF San Mateo CA
by Claes T. Eleving - Cupertino CA
Sven T. Elfving - Chicago IL

F25B 2102
F25C 518

62 3

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.

39435539, Mar 9, 1976

Dec 16, 1974

5/533258

Sven T. Elfving - Chicago IL
Thore M. Elfving - San Mateo CA

H01L 2356
H01L 2348
H01V 130
H01V 100

357 28

A thermoelectric assembly including a plurality of N-type and P-type semiconductor bodies interconnected by junction bridge elements. The junction bridge elements are in the form of thin sheets or plates of conductive material disposed edgewise with respect to the bodies and connected thereto by means of lips or tabs which extend perpendicular to the plane of the junction bridge element. A frame for directly engaging and holding the junction bridge elements and heat dissipating and absorbing means cooperate with the edges of the bridge elements.