Portable ice and CO.sub.2 snow maker and method therefor
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United States of America Patent
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Jul 7, 1998
Grant Date -
N/A
app pub date -
Oct 25, 1996
filing date -
Oct 25, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A portable apparatus and method for discharge of CO.sub.2 snow or a combination of CO.sub.2 and ice along a generally horizontal path over and onto a load within an elongated insulated container from one partially open end of the container toward the other closed end thereof and in a manner to form either a blanket of CO.sub.2 snow or a blanket of ice over the load within the container. The apparatus includes a rectangular or cylindrical duct into which liquid CO.sub.2 is discharged adjacent one closed end for impact against the walls of the duct before exiting in a CO.sub.2 snow and gas stream from the opposite open end. A transverse manifold is mounted adjacent the open end to jet spray water feed to the manifold into contact with the CO.sub.2 stream at an acute angle, preferably about 15.degree..
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