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7237431 |
Apparatus and method for measuring viscosity
An apparatus and methods for analysis of a petroleum product, specifically determining the viscosity of a sample, are disclose. The apparatus includes a sample reservoir for receiving a liquid...
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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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7131318 |
Viscometer
A viscometer including a thermal block, a thermo device to control temperature of the thermal block, a temperature sensor to sense temperature of the thermal block, a capillary tube embedded in the...
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7114374 |
Sensitive spinline-type extensional viscometer for mobile liquids employing very small liquid volumes
A method for making fluid elasticity measurements using an extensional viscometer ( 100 ) is disclosed, where stress is not directly measured but is inferred from an accurate measurement of the...
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7051581 |
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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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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6941797 |
Device and method for determining the viscosities of liquids by means of the capillary force
The invention relates to a device and a method for automated and simultaneous determination of the viscosity of a plurality of liquids.
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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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6810718 |
Apparatus and method for fluid analysis
The present invention is an apparatus and method for analyzing a fluid used in a machine or in an industrial process line. The apparatus has at least one meter placed proximate the machine or...
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6796168 |
Method for determining a characteristic viscosity-shear rate relationship for a fluid
A method for determining the viscosity of a fluid flowing through a system at any point in the system whereby the method involves determining a characteristic relationship for the fluid between...
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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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6751004 |
Optical system with magnetorheological fluid
An optical system includes a layer of magneto rheological (MR) fluid having a surface exposed to air or vacuum. The MR fluid has a first state wherein the surface is reflective, and a second state...
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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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6711940 |
Method and apparatus for measuring the elasticity of fluids
An indication of the elasticity of a non-Newtonian fluid is obtained by extending a fluid bridge between a pair of relatively movable surfaces that hold a fluid sample therebetween, and continuing...
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6705153 |
Monitoring liquid characteristics including quality control
A drilling mud monitoring system includes a single measurement chamber which is filled with a predetermined quantity of drilling mud. The chamber is weighed to provide a value representative of the...
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6598465 |
Electrorheological and magnetorheological fluid scanning rheometer
A scanning rheometer is presented for the rheological property measurement of electrorheological (ER) and magnetorheological (MR) fluids using a non-linear viscoplastic model, based on the fluid...
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6571608 |
Single riser/single capillary viscometer using mass detection or column height detection
An apparatus and method for determining the viscosity of a fluid over plural shear rates caused by a decreasing pressure differential by monitoring the movement of the fluid through a riser tube...
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6474143 |
Automatically monitoring density and viscosity of a liquid
A drilling mud monitoring system includes a single measurement chamber which is filled with a predetermined quantity of drilling mud. The chamber is weighed to provide a value representative of the...
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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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6101451 |
Water management system
A system for monitoring the use of water supplied by a pipe to a device that discharges water during use. A meter generates information indicating that water is flowing through the pipe with a...
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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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5569843 |
Unit used in an apparatus for measuring the viscosity of a fluid
The disclosure herein describes a unit used in an apparatus for measuring the viscosity of a fluid contained in a recipient; the unit includes a vertically displaceable piston at the upper end of...
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5544519 |
Method and apparatus for measuring the flow resistance of a catheter in an implanted medication infusion system
In a method for measuring the flow resistance of a catheter in an implanted medication infusion system, the system having a medication reservoir and a pump that conveys the medication from the...
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5365776 |
Process and device for determining the viscosity of liquids
A process and a device for determining the viscosities of liquids are described, which work quickly, reliably and accurately. The process according to the invention makes use of the fact that...
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4932242 |
Capillary type viscosimeter
In a capillary viscosimeter, there are provided a high pressure receiving chamber coupled to a predetermined point of a capillary with an inlet port to which the fluid to be measured is...
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4750351 |
In-line viscometer
An in-line viscometer comprising in combination a flowsection, a flowmeter installed to measure flow through the flowsection, a friction flow tube installed parallel and suspended within the...
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4723442 |
High-temperature, high-shear capillary viscometer
A high-temperature, high-shear viscometer includes a closed end tube having a chamber. A first inlet to the tube is for introducing pressurized gas therein. A second inlet to the tube is for...
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H000337 |
Delayed swell viscometer
A method of measuring the shear viscosity of a polymeric solution by measng the delayed die swell of a pressurized solution through a capillary.
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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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4566314 |
Device and method of measuring the viscosity and/or visco-elasticity of a fluid
A method and device for handling a fluid to accurately measure the viscosity and/or visco-elasticity of the fluid. More particularly, the method and device hereof is adapted for reliable...
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4554821 |
Apparatus for determining the viscosity of fluids, in particular blood plasma
An apparatus for determining the viscosity of fluids, particularly blood plasma, includes an outer housing including a front surface having a groove therein; a disposable capillary tube removably...
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4461830 |
Serum fibrinogen viscosity in clinical medicine
A solution of purified, standardized fibrinogen is added to a sample of coagulant-free serum from subject, and the viscosity of the resulting solution is measured. The measurement may be related to...
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4441358 |
Automated ultrasonic solution viscometer
Apparatus and method are provided to automatically measure the viscosity of a solution. The apparatus employs at least two sets of piezo electric ultrasonic accoustical transducers mounted along...
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4426878 |
Viscosimeter
A viscosimeter having a first cell containing mercury or other electrically conductive fluid, a second cell containing a sample of fluid of unknown viscosity, and a pair of passages interconnecting...
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4403502 |
Viscometer for cast foaming materials and associated method
A motionless viscometer and associated method for resinous materials including polymeric foams and non-resinous materials includes a reservoir section, a receiver section and an interposed tube. As...
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4402215 |
Rheological testing method
A method of testing the potential anti-misting and/or the drag reducing properties of a polymer modified fluid by testing its rheological behavior under increasing pressure. It has been found that...
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4274279 |
Viscosity measuring device
An improved measuring viscosity device comprises an upper container and a lower container, the upper container has a diameter greater than the lower container, the two containers are connected by a...
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4143541 |
Method and device for measuring the characteristics of plastic fluid and control system for pouring the same into moulds
The fluidity of a plastic fluid, cement mortar for example, is measured by passing the fluid through a flow passage packed with an aggregate for simulating an actual mould, measuring the flow...
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4118973 |
Apparatus for measuring the flow rate and/or viscosity of a fluid
An apparatus for measuring the flow rate and/or viscous characteristics of a fluid comprises a casing, having a fluid passage which is elongated in cross-section with two parallel, opposed sides...
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4083363 |
Blood viscosity determination device
An apparatus for determining blood viscosity of blood in the body is disclosed. Venous pressure in a body vein is maintained at a constant pressure, blood is then withdrawn from the vein at a...
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3930403 |
Piston assembly
A transfer compressor for transmitting pressure from one fluid to another comprising a cylinder, a piston slidable within the cylinder, a space within the cylinder at each end of the piston, means...
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3895513 |
Viscometric apparatus
Viscometric apparatus including a plurality of calibrated viscometry tubes have their lower ends connectable by valve means either to the ambient air or to a suction source by which cleansing...
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3864962 |
CAPILLARY VISCOSIMETER
A capillary viscosimeter of the type in which liquid is supplied in excess to an overflow vessel upstream of the capillary during a viscosity measurement and is discharged downstream of the...
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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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3713328 |
AUTOMATIC MEASUREMENT OF VISCOSITY
The viscosity of a liquid is automatically measured by an apparatus comprising a Lantz-Zeitfuchs type reverse flow viscosimeter; a timing means actuated by photoelectric devices consisting of pairs...
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3699804 |
CAPILLARY VISCOMETER
A capillary viscometer has a capillary in one arm of a U-tube. The other arm contains a pair of coaxial but axially spaced measuring electrodes the upper one of which is axially adjustable. A...
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3680362 |
VISCOSIMETER
An apparatus for measuring the viscosity of a liquid product in a vessel, for instance, a reaction vessel, a dilution vessel or an evaporator, includes a measuring cell whose measuring chamber is...
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3666999 |
APPARATUS FOR PROVIDING SIGNALS CORRESPONDING TO THE VISCOSITY OF A LIQUID
Apparatus, which may be used with a computer, senses the passage of the meniscus of a liquid column between two predetermined levels. The time for the passage of the meniscus of the liquid column...
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