System for checking an internal temperature of a refrigerator by

Details System for checking an internal temperature of a refrigerator by System for checking an internal temperature of a refrigerator by

1998-06-01

1999-12-07

Tanner, Harry B.

Refrigeration

With indicator or tester

116216, 374141, 374162, F25B 4900

Patent

active

059963573

ABSTRACT:
A system for checking an internal temperature of a refrigerator includes a thermochromic member on an external surface of the refrigerator. A heat transfer from an inside of the refrigerator to the thermochromic member is made through a duct formed through a wall of the refrigerator. Accordingly, depending upon a level of temperature inside the refrigerator, a color of the thermochromic member is changed or not, informing an user of a state of the refrigerator in operation.

REFERENCES:
patent: 4014178 (1977-03-01), Kells
patent: 5718513 (1998-02-01), Booth et al.

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