Fluid properties evaluation

Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Mechanical measurement system

Reexamination Certificate

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Details

C073S054240, C137S010000

Reexamination Certificate

active

07054766

ABSTRACT:
Fluid flow properties often dictate the performance of processing operations. The present invention relates to a system for evaluating properties of a fluid flowing in a pipe. A test cell (20) which includes two parallel surfaces (5, 6) which are positioned in the flow. One of the surfaces is moveable relative to the other, to a position in close proximity to the other, to create a stagnant flow region between the surfaces. The system further includes a test input device (10) to apply input motion to one of the surfaces, and a test output device (13) to measure output motions from the cell in response to input motions. Furthermore, the system includes a processing device (9) to calculate rheological parameters of the fluid from signals produced from the test input and test output device. There is also a process for evaluating properties of a flowing fluid.

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patent: 6023962 (2000-02-01), Wang et al.
patent: 6357281 (2002-03-01), Wilhelm
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patent: 6562616 (2003-05-01), Toner et al.
patent: 31075/77 (1979-06-01), None
patent: 2306670 (1997-05-01), None
patent: WO 95/12822 (1995-05-01), None
patent: WO 97/210990 (1997-06-01), None

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