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7331218 |
Capillary bridge viscometer and method for measuring specific viscosity
A bridge viscometer for measuring specific viscosity, η sp (t), includes four capillaries, a delay volume, and a pressure transducer. The pressure transducer generates a signal indicative of a...
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7213439 |
Automatic bridge balancing means and method for a capillary bridge viscometer
A thermally controlled stage is connected within one arm of a bridge of a capillary bridge viscometer so that the bridge can be balanced in situ to provide accurate measurement signals. The...
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7188515 |
Nanoliter viscometer for analyzing blood plasma and other liquid samples
A microfabricated, a nanoliter capillary viscometer includes a first channel that is defined by a first channel-defining surface in a first substrate and a second channel defining surface in a...
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7040144 |
Microfluidic viscometer
Microfluidic devices, systems, and methods measure viscosity, flow times, and/or pressures, other flow characteristics within the channels, and the measured flow characteristics can be used to...
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6993958 |
Capillary column chromatography process and system
A microfluidic system is provided for separating components of many fluid samples in a parallel fashion through an array of capillary conduits. The system includes capillary conduits for receiving...
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6990850 |
Curtain coater rheology management
A method and apparatus for accurately determining the rheology of a coating fluid and using this information to design application equipment and formulations, particularly for non-Newtonian fluids,...
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6907772 |
Dual riser/single capillary viscometer
A blood viscosity measuring system and methods for measuring blood viscosity monitors the change in height of one of two, oppositely-moving, columns of blood from the circulating blood of a patient...
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6877361 |
Viscosimeter
A viscosimeter for measuring the viscosity of a solution in a solvent includes flow resistances having the smallest possible thickness and a small volume compared with all other parallel and...
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6836362 |
Method for the rapid determination of the optical quality of combinatorial libraries
This invention provides methodology for the measurement of both low and high levels of scattered radiation produced by decorative and barrier coatings and plastics. Measurements of low levels are...
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6769292 |
High throughput rheological testing of materials
A library of materials is screened for viscosity. A library of materials is provided. The library is contacted with at least one capillary for applying a force through the materials. The relative...
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6732574 |
Method of using a high throughput viscometer
An apparatus and method for measuring viscosity or related properties of fluid samples in parallel is disclosed. The apparatus includes a plurality of tubes and reservoirs in fluid communication...
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6561011 |
Apparatus and method for measuring the viscosity of plastic materials
In an apparatus for measuring the viscosity of plastic materials including a heatable housing structure, enclosing a controllable material pump for generating a certain material flow, a plurality...
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6553812 |
Combined oil quality and viscosity sensing system
A combined oil quality and fuel contamination sensing system includes a capacitive dielectric sensor and pressure sensing arrangements for measuring the dielectric constant of the oil and the...
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6498566 |
Method for measuring fluid level
A method for measuring fluid level uses data sensed by an oil level sensor to determine the level of oil in a motor vehicle oil pan. The oil level sensor can include a receiver tube oriented...
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6412337 |
Apparatus and method for measuring the rheological properties of a power law fluid
The apparatus ( 10 ) is used for determining the consistency index (k) and the power law index (n) of a Newtonian fluid or non-Newtonian power law fluid. A method is also disclosed. Accordingly,...
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6393898 |
High throughput viscometer and method of using same
An apparatus and method for measuring viscosity or related properties of fluid samples in parallel is disclosed. The apparatus includes a plurality of tubes and reservoirs in fluid communication...
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6276195 |
Three capillary flow-through viscometer
A method and apparatus for measuring the viscosity of a sample solution which comprises an input tube for transporting a sample solution flow towards a splitter for diverting input flow into two...
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6073483 |
Device for measuring the viscosity of a fluid
A device for measuring the viscosity of a fluid includes a viscosensitive unit through which the fluid flows under laminar flow conditions, a first turbulent flow flowmeter in series with the...
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5756883 |
Method of continuously testing the accuracy of results obtained from an automatic viscometer
A method of testing the accuracy of results obtained from an automatic viscometer is described. Firstly, provide an automatic viscometer having at least two capillary tube test sections, each of a...
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5661232 |
Coriolis viscometer using parallel connected Coriolis mass flowmeters
A pair of flowmeters having unequal flow carrying capabilities are effectively connected in parallel to receive a material flow. The material flow through the flowmeters supplies output signals to...
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5559284 |
Method for determining elongational viscosity and dynamic surface tension in liquid solutions
Disclosed is a method for measuring intermolecular force related physical properties of an objective liquid such as elongational viscosity and dynamic surface tension, comprising the steps of...
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4876882 |
Viscosity detection method for liquid chromatography systems with carrier liquids having time-varying viscosity
A method for measuring the inherent viscosity of individual solute components in a multicomponent sample in solution with a solvent comprising for each component (1) measuring pressure differences...
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4793174 |
Differential pressure capillary viscometer
An improved differential pressure capillary viscometer in which a sample of solute in solution with a solvent is introduced into a stream of flowing solvent. The sample passes sequentially into...
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4644781 |
Fluid property measuring device
Presented is a fluid property measuring device which can be used to measure he viscosity, the density, the volumetric flow rate, and the mass flow rate, of a fluid without using moving parts. The...
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4603979 |
Procedure and means for measuring the internal friction of liquid substances
The object of the present invention is to measure the magnitude of the friction and coefficient of friction or liquids with high viscosity or internal friction, such as molten plastic mix, e.g. in...
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4519239 |
Apparatus for determining the flow shear stress of suspensions in particular blood
The invention concerns a measuring apparatus for checking and determining the flow shear stress of certain suspensions, principally blood, by a static or dynamic method and to thereby plot the...
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4442704 |
Viscosity meter
A meter for continuously monitoring the viscosity of lubricating fluids. A fluid conduit extends across the element or bearing being lubricated to employ the differential pressure of the lubricant...
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4425790 |
Prediction of extrusion performance of polymers
An apparatus is provided for predicting the extrusion performance of a thermoplastic resinous polymer, which includes at least three and preferably four capillaries arranged in series with each...
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T960004 |
Apparatus for concurrent measurement of polymer melt
a polymer melt's rheological properties are comprehensively described by defining the constants K and n in the rheological equation: T= KG n where T= shear stress and G= shear rate. The constants...
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3952577 |
Apparatus for measuring the flow rate and/or viscous characteristics of fluids
An apparatus for measuring the flow rate and/or viscous characteristics of a fluid comprising a casing having a fluid passage, a fluid inlet cavity and a fluid outlet cavity, fluid pressure...
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3798960 |
AUTOMATIC VISCOMETER WITH MULTIPLE CAPILLARY VISCOMETER TUBE
An automatic viscometer featuring the use of a multiple capillary viscometer tube whereby capillary tubes of varying sizes are connected one to another in series and into which a sample liquid is...
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3744315 |
METHOD AND A DEVICE FOR DETERMINING THE TEMPERATURE AT VISCOSITY MEASUREMENTS
Two capillary-viscometers which are identical except for differing as regards the extent to which the width of their capillaries depends on the temperature, are simultaneously used for identical...
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3468158 |
METHOD OF AND APPARATUS FOR DETERMINING RHEOLOGICAL PROPERTIES OF NON-NEWTONIAN FLUIDS SUCH AS DRILLING FLUIDS OR THE LIKE
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3194057 |
Ultrasonic viscosimeter
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3115768 |
Viscosimeter apparatus
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3086386 |
Viscosity measuring system
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3005552 |
Process and apparatus for demixing substances
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2902858 |
Viscosity meter
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