Flexible transfer line exhaust gas shield
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United States of America Patent
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-
Dec 17, 1991
Grant Date -
N/A
app pub date -
Oct 17, 1989
filing date -
Oct 17, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A flexible transfer line for delivering coolant from a storage dewar to cool superconducting circuitry is provided with a delivery capillary coupled to the storage dewar, this capillary being thermally isolated from ambient temperatures. The transfer line has an outer flexible support coaxial with the delivery capillary, and an inner flexible shield between the delivery capillary and the outer flexible support. Heat in the shield is continuously removed to thereby provide the thermal isolation of the delivery capillary. The thermal isolation allows a low-flow rate of coolant through the delivery capillary since inefficiences due to thermal conduction and radiation are substantially eliminated.
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