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Class 73/53.04 - By measuring fluid flow characteristic (e.g., by volume or rate of flow or by change in fluid level)


Subclass of Class 73 - Measuring and testing
Definition: Subject matter wherein the determination is made by measuring
No. of patents: 53
Last issue date: 09/30/2008


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NumberTitleIssue Date
7430500Method and device for numerical analysis of flow field of incompressible viscous fluid, directly using V-CAD data
A method including: a dividing step (A) of dividing external data into a plurality of cells (13) having boundaries orthogonal to each other, the external data including boundary data of an object which contacts incompressible viscous fluid; a cell classifying...
09/30/2008
7389188Fluid-structure coupled numerical simulation method and program for fluid-structure coupled numerical simulation storage device
A fluid-structure coupled numerical simulation method is provided. The method uses a finite volume method employing an orthogonal mesh and a computer and memory setting a solid area based on a solid rate inside a mesh and at a tangent position to each mesh, includin...
06/17/2008
7364563Continuous volume detection for a flexible venous reservoir in a cardiopulmonary bypass circuit
A continuous volume detection system for a flexible venous reservoir in a cardiopulmonary bypass circuit is described. The volume detection system is based on a pressure measurement that is manipulated via application of fluid mechanics. Next-generation cardiopulmon...
04/29/2008
7350403Method and apparatus for determination of food quality and authenticity
A method for analysis of a multi-component fluid is provided based on the features of the dynamics of the self-organization processes in drying drops. An electro-acoustic resonator is utilized, with a drop of multi-component fluid placed on one end of the resonator....
04/01/2008
7350402Method and apparatus for determination of medical diagnostics utilizing biological fluids
A method for measuring changes in the composition of fluids, for medical diagnostics or quality control of fluids, comprising: One) placing a drop of fluid upon a quartz crystal; Two) generating ultrasonic vibratio...
04/01/2008
7251996Liquid detecting piezoelectric device, liquid container and mounting module member
A liquid detection device attached on a liquid container for detecting a liquid consumption status of the liquid contained in the liquid container, the liquid detection device including a vibrating section symmetrical about a center thereof, and at least one electro...
08/07/2007
7225670Mounting structure, module, and liquid container
The mounting structure for mounting the piezo-electric device (106) used to detect the consumption condition of the liquid in the liquid container (1) to the liquid container (1), having the receiving portion (363) to which the piezo-elec...
06/05/2007
7143637Dielectric slit die for in-line monitoring of liquids processing
The dielectric slit die is an instrument that is designed to measure electrical, rheological, ultrasonics, optical and other properties of a flowing liquid. In one application, it is connected to the exit of an extruder, pump or mixing machine that passes liquefied ...
12/05/2006
7043967Sensor device for monitoring the condition of a fluid and a method of using the same
The present invention is a compact apparatus and method that provides an efficient manner for monitoring the condition and level of a functional fluid directly in operating equipment. A sensor device is provided that includes a plurality of liquid sensors and a plur...
05/16/2006
7000781Filtering device
The invention relates to a filtering device for taking a filtrate sample from liquid matter containing solid particles. The filtering device comprises two filter parts and at least one filtering slot between the filter parts. The filter parts are adapted to move in ...
02/21/2006
6935164Refiner control
In the present invention a refiner (108) of a mechanical pulping line is supplied with a controllable acoustic source (14), arranged for emitting acoustic signals into the pulp fluid. The controllable acoustic signal is allowed to interact with the fib...
08/30/2005
6929715Method and a device for measuring concentrations
A method and a device for measuring concentrations especially in a pulp suspension, from which a sample has been taken. The sample is collected in a measuring vessel, in which a piston is guided upwards and downwards in order to press the sample from each direction ...
08/16/2005
6915896Cleaning drain apparatus for an auger assembly
A drain apparatus for the intake end of an auger is disclosed. The drain apparatus comprises a bearing with radial arms, a cover with a cover portion, a drain and a drain cap for removably closing the opening of the drain. The drain apparatus facilitates a clean in ...
07/12/2005
6884320Method and apparatus for producing and testing a fiber bed
A method for producing and testing a fiber bed, includes a housing, a main inlet passage and a main outlet passage, a cavity in the housing in fluid connection with the inlet and outlet passages, a body rotatably arranged in the cavity, the body being arranged with ...
04/26/2005
6874357Method for studying liquid and device for carrying out said method
The present invention relates to physical chemistry and can be used for a quality test of liquids, in particular, multi-component liquid products, to ascertain the conformity of various process liquids, pharmaceutical preparations, foodstuffs, biological liquids to ...
04/05/2005
6778076Oil pressure switch failure detection system for outboard motor
An oil pressure switch failure detection system for an outboard motor, having a first oil pressure switch which generates an ON signal indicating that the oil pressure is less than or equal to a first predetermined oil pressure and a second oil pressure switch which...
08/17/2004
6745626Liquid detecting piezoelectric device, liquid container and mounting module member
A liquid detection device attached on a liquid container for detecting a liquid consumption status of the liquid contained in the liquid container, the liquid detection device including a vibrating section symmetrical about a center thereof, and at least one electro...
06/08/2004
6523395Method and measuring apparatus for measuring freeness
The invention relates to a method and measuring apparatus for measuring freeness. Freeness is measured with the help of an automatic data processing apparatus (30) so that the flow rate of a liquid draining from a measuring chamber (10) is measured using ...
02/25/2003
6510739Apparatus for continuously monitoring liquid level conditions in a liquid-vapor separating device
An apparatus 100 for providing information concerning a condition of a vessel such as a steam drum 12 which segregates steam and liquid from one another includes a liquid contact assembly 102, a signal generator element 130, and a housing 112 and a condui...
01/28/2003
6470744Liquid detecting piezoelectric device, liquid container and mounting module member
A liquid detection device attached on a liquid container for detecting a liquid consumption status of the liquid contained in the liquid container, the liquid detection device including a vibrating section symmetrical about a center thereof, and at least ...
10/29/2002
6430514Water management system
A system is disclosed for monitoring the use of water supplied by a pipe to a device that discharges water during use. A meter generates information indicating the volume of water is flowing through the pipe and the temperature times the volume thereof wh...
08/06/2002
6305216Method and apparatus for predicting the fluid characteristics in a well hole
An improved apparatus and improved method for determining the characteristics of a multi-phase fluid along a well hole having a predefined geometric profile are presented. Various state properties of the fluid, including the temperature, pressure and spec...
10/23/2001
6250132Method and apparatus for real time gas analysis
A modular apparatus for analyzing a fluid includes a disposable fluidic sensor module, a replaceable transducer module, and an expendable electronics package. The disposable fluidic sensor includes a fluidic flowmeter and a capillary structure formed in a...
06/26/2001
6227039System and method for controlling concrete production
A measuring system for measuring rheological properties of a concrete mix tested when contained, the system comprising, a surface in contact with part of a mass of said concrete mix; a shearing unit for effecting shear deformation in said mass, along the ...
05/08/2001
6176119Analytical system for sample liquids
The invention concerns a system for the analysis of sample liquids, comprising: a) test elements comprising an edge profile; b) a moisture-impermeable, tightly sealable storage container for at least two test elements comprising a guide element, a spacer betwe...
01/23/2001
6101451Water 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 measured BTU content and a control receives the information an...
08/08/2000
6018989Method and apparatus for measuring the properties of a fiber or colloid suspension
In the measurement of the properties of a fiber or colloid suspension for process control, e.g. in order to control a refiner, it is known that the fiber length is related to the rate at which water can be drained from a sample. In the present invention i...
02/01/2000
5954922Method and apparatus for determining pulp permeability and compressibility for controlling papermaking process
Method and apparatus are presented for use in a papermaking process for determining permeability and/or compressibility characteristics of a pulp suspension within the process. The method/apparatus includes monitoring height of pulp suspension within one ...
09/21/1999
5908535Method for determination of filler content in paper
A method of determining the filler content of paper, wherein the paper stock is examined prior to delivering the stock to the de-watering section of the paper machine, and wherein the volume concentration of particles in the stock that have a size which i...
06/01/1999
5834635Plug flow converting pipeline and method
A plug flow converting pipeline and method for creating a plug flow condition of a fluid in a pipeline or similar conduit so that a desired measurement of the fluid may be conducted. In one embodiment, the converting pipeline includes a section of pipelin...
11/10/1998
5686659Fluid dose flow and coagulation sensor for medical instrument
A method of determining whether a sample or a control has been applied to an instrument for measuring coagulation of a fluid by optically detecting when the fluid that has been applied to the instrument has passed a first and a second points, determining ...
11/11/1997
5650562Cement treated with high-pressure CO2
Cured cement matrices are exposed to dense-phase or supercritical CO2 which enters the matrix through passages therein to neutralize the natural alkalinity of the cement so that alkali-intolerant materials can be incorporated in the cement. The...
07/22/1997
5510702Method and apparatus for simultaneous measuring the streaming potential of a fiber suspension and a filtrate thereof
A method and apparatus for simultaneously measuring the streaming potential of a fiber suspension and a filtrate thereof. A container is provided having an inlet and an outlet for the flow of fiber suspension therethrough, and a filter screen divides the ...
04/23/1996
5495751Streaming potential measuring cell
A cell for measuring electrokinetic potential, such as a streaming potential, includes a housing having an interior chamber divided into an upper compartment and a lower compartment by a filter mesh on which is formed a pad of a fibrous dispersion to be m...
03/05/1996
5365775Process for automatic measurement of specific filtration resistance and electrostatic charge of a fibrous dispersion
A method is provided to monitor specific filtration resistance, total drainage resistance and drainage flow rate in a continuous on-line manner in the paper making process. It can be combined with the simultaneous measurement of streaming potential or zet...
11/22/1994
5076890Method for pulp quality control and regulation
The present invention relates to a method of qualitative and quantified monitoring of the instant local physical state of a substantially incompressible fluid material such as a liquid or pasty substance (for instance slurry or pulp) and a device for carr...
12/31/1991
4969351Apparatus for determining drainage time of papermaking stock
The invention is an apparatus and method for measuring drainage time of a papermaking stock suspension. The apparatus will automatically measure drainage times of a plurality of samples which will preferably be of differing basis weights. It consists of a...
11/13/1990
4891098Dynamic filtration simulator
This invention is directed to a filtration simulator. More specifically, this invention is directed to a Dynamic Filtration Simulator (DFS) and method of determining the interaction and effect on liquid flow of additives to paper stock in a papermaking ma...
01/02/1990
4694683Method to automatically determine the size distribution of shive and analyzer therefor
An apparatus to automatically determine on-line, the shive content and shive size distribution of a wood pulp: The apparatus includes a line having an inlet and outlet, and a plug for closing the line. A motor and gear displaces the line with respect to t...
09/22/1987
4687986Method and apparatus for measuring the streaming potential of a particle suspension
A particle suspension from a process is introduced into a measuring vessel 1 and caused to rise above a screen 4 whereupon the streaming potential of the suspension is determined by measuring the voltage across the screen at alternately different, relativ...
08/18/1987
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