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Class 73/54.17 - Using a reference fluid


Subclass of Class 73 - Measuring and testing
Definition: Subject matter wherein the determination is made by comparing
No. of patents: 6
Last issue date: 10/23/2007


NumberTitleIssue Date
7284413Method and apparatus for measuring viscosity
An apparatus for measuring the viscosity of a fluid having a first rigid member extending from a body of semiconductor material and provided with a first conductive path and a second resiliently flexible member provided with a second conductive path and arranged in ...
10/23/2007
7249492Method and device for evaluating and/or adjusting the cleaning performance of a cleaning liquid
A method and device are provided for measuring and/or adjusting the cleaning performance of a cleaning liquid. One method of the invention includes determining a control value (i.e., the number of drops of the cleaning liquid to provide a selected volume) indicative...
07/31/2007
6694804Method and device for evaluating and/or adjusting the cleaning performance of a cleaning liquid
A method and device are provided for measuring and/or adjusting the cleaning performance of a cleaning liquid. One method of the invention includes determining a control value (i.e., the number of drops of the cleaning liquid to provide a selected volume)...
02/24/2004
6269685Viscosity measuring using microcantilevers
A method for the measurement of the viscosity of a fluid uses a micromachined cantilever mounted on a moveable base. As the base is rastered while in contact with the fluid, the deflection of the cantilever is measured and the viscosity determined by comp...
08/07/2001
5509297Viscometer calibration
A rotational viscometer instrument of the type having a rotor driven to rotate about an axis, the rotor for contact with a fluid, the viscosity or related property of which can be measured by measuring torque or drag on the rotor rotating in contact with ...
04/23/1996
4517830Blood viscosity instrument
Apparatus for detecting the viscosity of blood comprises a hypodermic syringe including a transparent hollow tube, a needle secured to one end of the tube and a plunger in the tube for creating a vacuum for extracting a predetermined volume of blood and d...
05/21/1985
 
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