Sample changer for X-ray diffractometer
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United States of America Patent
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Sep 13, 1988
Grant Date -
N/A
app pub date -
Jan 12, 1987
filing date -
Jan 12, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A sample changer for powder X-ray diffractometry includes a cylindrical dispensing container for holding a stack of pre-test sample holders, a cylindrical receiving container for holding a stack of post-test sample holders and a changer arm which automatically picks up the topmost sample disk in the dispensing container and rotatably positions the sample disk on the sample holder stage of an X-ray diffractometer for analysis. After analysis, the changer arm removes the sample holder and releases it into the receving container. The sample holders have a circumferential groove which coacts with semi-circular rotatable cams positioned on the distal end of the changer arm to enable the changer arm to lift and place the sample holders.
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