F - Mech Eng,Light,Heat,Weapons – 25 – C
Patent
F - Mech Eng,Light,Heat,Weapons
25
C
62/8
F25C 1/08 (2006.01) F28D 15/06 (2006.01)
Patent
CA 1040444
ABSTRACT OF THE DISCLOSURE An automatic ice maker includes a heat pipe in the form of a sealed tube containing a refrigerant which extends from the freezer compartment to the fresh food compartment of a household refrigerator. Positioned within the heat pipe and located intermediate the freezer and fresh food compartment is a valve preferably in the form of a steel ball which is periodically unseated from an annular valve seat by a rotating magnet actuator mechanism. The portion of the heat pipe within the fresh food compartment is positioned within a water reservoir and is also insulated but for an ice-making surface thereof. When the check valve of the heat pipe is open, heat transfer thereto to the freezer compartment is enhanced to cause a clear ice cube to be formed on the uninsulated ice-making surface of the submersed heat pipe. When the check valve closes, the heat of the surrounding water will harvest the ice cube by releasing same to float to the top of the reservoir for collection and storage by conventional means.
265848
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