Auger-type ice making apparatus with improved evaporator
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United States of America Patent
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Issued Date -
Aug 28, 2003
app pub date -
Feb 28, 2002
filing date -
Feb 28, 2002
priority date (Note) -
Abandoned
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Abstract
An improved evaporator is provided for an ice making apparatus of the auger-type. The evaporator employs an evaporator body having spiral grooves cut or milled into its outer cylindrical surface and a cylindrical jacket disposed over the spiral groove formed on the outer cylindrical surface of the evaporator body, with the jacket being in interference-fit engagement against the groove of the evaporator body. The interference fit is formed by thermal expansion of the jacket prior to it being telescopically slid over the body, followed by a cooling-down of the jacket, by which it shrinks or compresses radially inwardly, to tightly seal against the outer periphery of the grooves, creating a sealed path for refrigerant flow, from inlet to outlet of the evaporator.
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