Self-Aligning Vacuum Feed-Through for Liquid Nitrogen
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United States of America Patent
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Issued Date -
Oct 7, 2021
app pub date -
Apr 1, 2021
filing date -
Apr 7, 2020
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Abstract
A light source includes a rotatable drum, an exhaust tube coupled to the rotatable drum to exhaust nitrogen gas from an interior of the rotatable drum, a feed tube situated within the exhaust tube to provide liquid nitrogen to the interior of the rotatable drum, and a casing to surround at least a portion of the exhaust tube. The light source also includes a rotary air bearing between the exhaust tube and the casing, to allow the exhaust tube to rotate with the rotatable drum.
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