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

Abstract

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.

Inventors:
 [1];  [2];  [2]
  1. Tracy, CA
  2. Livermore, CA
Publication Date:
Research Org.:
AT & T CORP
OSTI Identifier:
865573
Patent Number(s):
US 4538068
Assignee:
United States of America as represented by United States (Washington, DC)
DOE Contract Number:  
AC04-76DP00789
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
manipulator; thermally; conductive; rotary; joint; transferring; heat; specimen; rotatably; moving; ultra-high; vacuum; chamber; translational; unit; movable; mutually; perpendicular; directions; frame; rigidly; secured; supporting; shaft; copper; disc; movement; supported; receives; cryogenic; cold; head; rotate; sapphire; plate; interposed; discs; prevent; galling; material; maintaining; thermal; conductivity; spring; disposed; urge; compressingly; engage; mount; rotation; maintains; receiving; transfer; line; rotatably supporting; rotary shaft; transferring heat; vacuum chamber; thermal conductivity; thermally conductive; ultra-high vacuum; perpendicular directions; mutually perpendicular; cryogenic transfer; transfer line; /250/414/976/

Citation Formats

Haney, Steven J, Stulen, Richard H, and Toly, Norman F. Manipulator having thermally conductive rotary joint for transferring heat from a test specimen. United States: N. p., 1985. Web.
Haney, Steven J, Stulen, Richard H, & Toly, Norman F. Manipulator having thermally conductive rotary joint for transferring heat from a test specimen. United States.
Haney, Steven J, Stulen, Richard H, and Toly, Norman F. Tue . "Manipulator having thermally conductive rotary joint for transferring heat from a test specimen". United States. https://www.osti.gov/servlets/purl/865573.
@article{osti_865573,
title = {Manipulator having thermally conductive rotary joint for transferring heat from a test specimen},
author = {Haney, Steven J and Stulen, Richard H and Toly, Norman F},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1985},
month = {1}
}

Patent:

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