VACUUM INSULATED COOLING PROBE WITH HEAT EXCHANGER
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United States of America Patent
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Issued Date -
Oct 27, 2011
app pub date -
Apr 23, 2010
filing date -
Apr 23, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An insulated cooling probe including a probe sleeve assembly having an annular insulating jacket shaped in the vicinity of an evacuation vent to achieve a deeper vacuum within the insulating space than is applied to the vent, and a coolant inlet passageway and a coolant exit passageway bounded by a coolant passageway wall disposed within the insulating jacket, the probe also including a cooling tip extending outwardly from the sleeve assembly at one end of the probe and including a cooling region into which coolant enters from the coolant inlet passageway and from which coolant exits into the coolant exit passageway. The coolant expands across an orifice when upon exiting the coolant inlet passageway and entering the cooling tip. The coolant flowing in the coolant inlet passageway is pre-cooled in a heat transfer region of the probe by transferring heat to coolant flowing in the coolant exit passageway.
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