Receptacles – Receptacle having flexible – removable inner liner – Means for venting air trapped between the liner and its...
Patent
1984-02-02
1984-12-11
Pollard, Steven M.
Receptacles
Receptacle having flexible, removable inner liner
Means for venting air trapped between the liner and its...
220 1B, 220901, B65D 722
Patent
active
044873328
ABSTRACT:
In a cryostat of the type having nested vessels, a cryostat vessel wall spacing system wherein a plurality of rigid spacer stubs are secured between the vessel walls of adjacent vessels. The spacer stubs are mounted on the wall of an inner vessel to extend axially outwardly. A plurality of stub caps are secured to the adjacent vessel wall of a next outer vessel, with each stub cap having a recess designed to retain one of the spacer stubs therein. Each spacer stub engages its respective stub cap and is retained within the recess thereof when the walls of the nested vessels are at substantially the same temperature to uniformly and rigidly space apart the vessel walls of the nested vessels. When the vessel walls thermally contract because of the introduction of low temperature liquified gas into the inner vessel, each of the spacer stubs is withdrawn from its respective recess a distance sufficient to disengage said spacer stub and stub cap. In a preferred embodiment, a plurality of spacer stubs and stub caps are secured in coaxial alignment between a plurality of nested cryostat vessels when the vessels are at substantially the same temperature.
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Nicolet Instrument Corporation
Pollard Steven M.
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