Extended range Scanning Brookfield techniques
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United States of America Patent
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Oct 15, 2002
Grant Date -
N/A
app pub date -
May 4, 2000
filing date -
May 5, 1999
priority date (Note) -
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Abstract
Physical property of a liquid sample to include a viscometric and/or rheological property if not a structural property such as gelation and/or crystallization can be determined with a rotating viscometer employed in a Scanning Brookfield technique. The viscometer and technique employ a Brookfield-type head having a high torque capacity. Low temperatures may be employed in the scan. For example, properties of a motor oil having a very high viscosity and/or a gelation point owing to its intrinsic properties, oxidation and/or sooting and so on, can be accurately, precisely, rapidly, and repeatably determined.
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