Refrigerator having pressure equilibrium apparatus
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United States of America Patent
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Issued Date -
Jun 30, 2005
app pub date -
Jul 30, 2004
filing date -
Dec 30, 2003
priority date (Note) -
Abandoned
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Abstract
A refrigerator having a pressure equilibrium apparatus, including a through hole formed through a main body for communicating a refrigerating space of the main body with the outside therethrough, a case inserted into the through hole and provided with opened upper and lower surfaces, and a switching unit, installed in the case and rotated by its own weight to open and close the case, for achieving pressure equilibrium between the refrigerating space and the outside of the main body.
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