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Class 73/54.05 - Plural tubes


Subclass of Class 73 - Measuring and testing
Definition: Subject matter including more than one conduit.
No. of patents: 50
Last issue date: 06/08/2010


1    
NumberTitleIssue Date
7730769Capillary viscometers for use with Newtonian and non-Newtonian fluids
The present disclosure describes a viscometer for measurements of both Newtonian and non-Newtonian fluids. In one embodiment, the viscometer comprises (i) a storage reservoir to store a test fluid, (ii) at least one drain tube assembly comprising a capillary drain t...
06/08/2010
7341865Liquid delivery devices and methods
Methods and devices are provided for using high-density arrays of diverse chemical entities. In preferred embodiments, small volumes of multiple liquids are delivered to multiple reaction sites on a single substrate where the liquids are constrained to localized rea...
03/11/2008
7334457Multi-capillary viscometer system and method
This apparatus and method relates to the improved sensing of fluid differential pressures. The apparatus and method can be applied in multi-capillary solution viscometers and gel permeation chromatography systems used in the characterization of polymers. A valve is ...
02/26/2008
7331218Capillary bridge viscometer and method for measuring specific viscosity
A bridge viscometer for measuring specific viscosity, ηsp(t), includes four capillaries, a delay volume, and a pressure transducer. The pressure transducer generates a signal indicative of a pressure differential, Δp(t), as a sample is introduced into t...
02/19/2008
7317615Integrated circuit coolant microchannel assembly with manifold member that facilitates coolant line attachment
An apparatus includes a microchannel structure having microchannels formed therein. The microchannels are to transport a coolant and to be proximate to an integrated circuit to transfer heat from the integrated circuit to the coolant. The apparatus also includes a p...
01/08/2008
7237431Apparatus 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 sample and a pressure regulator for applying hyperbaric pressure to a sam...
07/03/2007
7213439Automatic 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 thermally controlled stage includes a tuning capillary tubing portion that i...
05/08/2007
7210455Engine control with fuel quality sensor
A system is described using a fuel quality sensor for controlling various aspects of engine operation. In particular, an acoustic wave sensor is utilized to measure viscosity and density of gasoline fuels. This measurement is utilized to predict engine combustion qu...
05/01/2007
7210937Method and apparatus for microfluidics education
The objective of the present invention is to provide a method and apparatus for education and training in microfluidic technology. The microfluidic system training apparatus includes multiple flow configurations of microfluidic elements all configured and fabricated...
05/01/2007
7188515Nanoliter 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 second substrate. The progress of liquid through this first channel is mo...
03/13/2007
7159602Flow-measuring valve device and method
A flow measuring valve device (1) for fluid, the flow measuring valve (1) comprising a first restriction (48) and a second restriction (76) connected in series with the first restriction (48), the flow rates of said restrictions (
01/09/2007
7131318Viscometer
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 thermal block such that the capillary tube is in thermal contact wit...
11/07/2006
7114368Apparatus and method for verifying the volume of liquid dispensed by a liquid-dispensing mechanism
An apparatus for improving the procedure for quantifying the volume of liquid dispensed by a liquid-dispensing mechanism of an analytical instrument. The apparatus of this invention comprises (a) at least one weigh cup; (b) at least one standard mass; (c) at least o...
10/03/2006
7114374Sensitive 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 change in the rate of flow of a liquid during passage through a ver...
10/03/2006
7074327Sample preparation for parallel chromatography
Systems and methods are provided for preparing samples for chromatographic separations and then chromatographically separating the prepared samples, preferably in a high-throughput fashion utilizing multiple parallel first (fluid) processing regions in fluid communi...
07/11/2006
7051581High 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 flow resistance of the materials is measured in response to the force;...
05/30/2006
7040144Microfluidic 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 generate a desired flow. Multi-reservoir pressure modulator and pressure ...
05/09/2006
7036355Viscometer
The viscometer provides a viscosity value (Xη) which represents the viscosity of a fluid flowing in a pipe connected thereto. It comprises a vibratory transducer with at least one flow tube for conducting the fluid, which communicates with the pipe. Driv...
05/02/2006
7028536Sealing interface for microfluidic device
A threadless interface for a fluidic system includes a microfluidic device having an outer surface and an internal near-surface channel having a first width and disposed at a first depth relative to the outer surface, with the first width being less than about two t...
04/18/2006
6993958Capillary 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 fluid samples, and for effecting separation of substituents of the sa...
02/07/2006
6992590Systems and methods for sensing a fluid supply status
A system that includes a container containing a fluid, a fluid line coupled with the container, and a pump configured to pump the fluid out of the container through the fluid line. The system further includes a sensor that includes a wireless transmitter. The sensor...
01/31/2006
6990850Curtain 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, including measuring the entrance transition effects for the fluid at...
01/31/2006
6941797Device 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. ...
09/13/2005
6928860Heat-transfer-inhibiting motor and rotor
Heat-inhibition respecting a motor is provided in connection with a heated instrument through a stand-off mount system and/or a heat-inhibiting rotor/stirrer. The instrument can be a hot bath containing instrument where stirring of the contents of the bath can be ca...
08/16/2005
6910366Viscometer
The viscometer provides a viscosity value (Xη) which represents the viscosity of a fluid flowing in a pipe connected thereto. It comprises a vibratory transducer with at least one flow tube for conducting the fluid, which communicates with the pipe. Driv...
06/28/2005
6907772Dual 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 and, given the dimensions of a capillary tube through which the bloo...
06/21/2005
6877361Viscosimeter
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 following capillaries in a flow conduit system with two legs. The flow cond...
04/12/2005
6836362Method 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 especially important for coatings used in automotive applications. The...
12/28/2004
6769292High 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 flow resistance of the materials is measured in response to the force;...
08/03/2004
6745615Dual 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 and, given the dimensions of a capillary tube through which the bloo...
06/08/2004
6732574Method 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 with the tubes. The tubes provide flow paths for the fluid samples, whi...
05/11/2004
6708553Viscosimeter
A viscosimeter for measuring the relative, intrinsic or inherent viscosity of a solution in a solvent with at least one flow resistance and one feeding point for the solution to be examined in a conduit system as well as with respective manometers on the flow resist...
03/23/2004
6561011Apparatus 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 of capillaries, a melt distributor is provided in the suppl...
05/13/2003
6553812Combined 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 pressure of the oil, respectively, with the oil pressure being ...
04/29/2003
6498566Method 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 upright in the oil pan of the vehicle. A level tube is disposed ...
12/24/2002
6412337Apparatus 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, the fluid flows in a laminar manner through a first (12) and a...
07/02/2002
6393898High 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 with the tubes. The tubes provide flow paths for the fluid s...
05/28/2002
6276195Three 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 distinct flow streams where three capillary tubes are locate...
08/21/2001
6158271Three 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 distinct flow streams where three capillary tubes are locate...
12/12/2000
6073483Device 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 viscosensitive unit, and a second turbulent flow flowmeter shun...
06/13/2000
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