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Patent application: Refrigeration devices including temperature-controlled container systems

Ben Welter - Monday, August 24, 2015

U.S. patent application 20150233617 (assignee Tokitae LLC, Bellevue, Wash. Among the inventors listed: Microsoft founder Bill Gates and Nathan P. Myhrvold, founder and CEO of Intellectual Ventures):

Refrigeration patent drawing

"In some embodiments, a refrigeration device includes: walls substantially forming a liquid-impermeable container configured to hold phase change material internal to a refrigeration device; at least one active refrigeration unit including a set of evaporator coils positioned within an interior of the liquid-impermeable container; walls substantially forming a storage region; and a heat transfer system including a first group of vapor-impermeable structures with a hollow interior connected to form a condenser in thermal contact with the walls substantially forming a liquid-impermeable container, a second group of vapor-impermeable structures with a hollow interior connected to form an evaporator in thermal contact with the walls substantially forming a storage region, and a connector with a hollow interior affixed to both the condenser and the evaporator, the connector forming a liquid and vapor flow path between the hollow interior of the condenser and the hollow interior of the evaporator."

http://www.freepatentsonline.com/20150233617.pdf

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