Cryogenic pumping apparatus with replaceable pumping surface elements
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United States of America Patent
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-
Oct 20, 1981
Grant Date -
N/A
app pub date -
Oct 18, 1979
filing date -
Oct 18, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Two-stage cryogenic pumping apparatus having individual plate members with cryosorbent coatings secured by removable fasteners to permit easy assembly and replacement of the plate members. The plate members are spaced apart to provide relatively unrestricted access to the cryosorbent material for the gases to be adsorbed thereon.
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Cited Art Landscape
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