High pressure viscometer with chamber preventing sample...

Details High pressure viscometer with chamber preventing sample... High pressure viscometer with chamber preventing sample...

2005-10-24

2008-08-19

Williams, Hezron E. (Department: 2856)

Measuring and testing

Liquid analysis or analysis of the suspension of solids in a...

Viscosity

C073S054230, C073S054260, C073S054270

Reexamination Certificate

active

07412877

ABSTRACT:
Viscometer (80) with a rotor (51) rotatable by a coupling magnet (34) and a driving magnet (38) to shear a tested fluid thus imparting torque to a bob (30) mounted on a bob shaft (24) supported via a pair of bob shaft bearings. A spiral spring (70) restricts the rotation of bob shaft (24). Magnetometer (10) measures the angular position of a top magnet (72) connected to the top of bob shaft (24). This angular position information is further converted to the viscosity of the tested fluid.

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patent: 6951127 (2005-10-01), Bi

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