Manipulator having thermally conductive rotary joint for transferring heat from a test specimen

Patent · Tue Jan 01 04:00:00 EST 1985

OSTI ID:865573

Haney, Steven J ^[1]; Stulen, Richard H ^[2]; Toly, Norman F ^[2]

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1. Tracy, CA
2. Livermore, CA

A manipulator for rotatably moving a test specimen in an ultra-high vacuum chamber includes a translational unit movable in three mutually perpendicular directions. A manipulator frame is rigidly secured to the translational unit for rotatably supporting a rotary shaft. A first copper disc is rigidly secured to an end of the rotary shaft for rotary movement within the vacuum chamber. A second copper disc is supported upon the first disc. The second disc receives a cryogenic cold head and does not rotate with the first disc. A sapphire plate is interposed between the first and second discs to prevent galling of the copper material while maintaining high thermal conductivity between the first and second discs. A spring is disposed on the shaft to urge the second disc toward the first disc and compressingly engage the interposed sapphire plate. A specimen mount is secured to the first disc for rotation within the vacuum chamber. The specimen maintains high thermal conductivity with the second disc receiving the cryogenic transfer line.

• Research Organization: AT & T CORP
• DOE Contract Number: AC04-76DP00789
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4538068
• OSTI ID: 865573
• Country of Publication: United States
• Language: English

Related Subjects

/250/414/976/
chamber
cold
compressingly
conductive
conductivity
copper
cryogenic
cryogenic transfer
directions
disc
discs
disposed
engage
frame
galling
head
heat
interposed
joint
line
maintaining
maintains
manipulator
material
mount
movable
movement
moving
mutually
mutually perpendicular
perpendicular
perpendicular directions
plate
prevent
receives
receiving
rigidly
rotary
rotary shaft
rotatably
rotatably supporting
rotate
rotation
sapphire
secured
shaft
specimen
spring
supported
supporting
thermal
thermal conductivity
thermally
thermally conductive
transfer
transfer line
transferring
transferring heat
translational
ultra-high
ultra-high vacuum
unit
urge
vacuum
vacuum chamber