F - Mech Eng,Light,Heat,Weapons – 17 – C
Patent
F - Mech Eng,Light,Heat,Weapons
17
C
162/21
F17C 1/00 (2006.01) F17C 3/08 (2006.01) F17C 13/08 (2006.01)
Patent
CA 1233108
CRYOSTAT VESSEL WALL SPACING SYSTEM ABSTRACT OF THE DISCLOSURE 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 are 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because of the introduction of low temperature liquified gas into the inner vessel, each of the spacer stubs is withdrawn from its respective recess a distance sufficient to disengage said spacer stub and stub cap.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 cyrostat vessels when the vessels are at substantially the same temperature.
465321
Nicolet Instrument Corporation
Ridout & Maybee Llp
LandOfFree
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