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| Number | Title | Issue Date |
| 8146406 | Vibrating transmitter for consistency measurement The invention relates to a transmitter for consistency measuring of pulp suspensions at first hand, comprising a measuring body (1), shaped such as a blade, suspended in a vibration-producing apparatus. The measuring body (1) shaped such as blade (I′... | 04/03/2012 |
| 7752894 | Method for measuring consistency, chopper structure, and consistency meter The method measures consistency with a rotating consistency meter. The method comprises chopping with the teeth of a chopper structure optical radiation transmitted by an optical source to an optical detector while the shafts of the rotating consistency meter rotate... | 07/13/2010 |
| 7363800 | Apparatus and method for measuring compositional parameters of a mixture An apparatus for measuring compositional parameters of solid, liquid, and gas components of a mixture flowing in a pipe is presented. The apparatus combines three different compositional measurements (e.g., the speed of light (microwave), the speed of sound (sonar),... | 04/29/2008 |
| 7181955 | Apparatus and method for measuring multi-Phase flows in pulp and paper industry applications The consistency of a pulp slurry in a pipe 12 is determined using a pair of effective sound speeds a1eff and a2eff of the fluid/pipe system. The pair of effective system sound speed measurements are taken at two sensing regions X1 | 02/27/2007 |
| 7140239 | System and technique for ultrasonic characterization of settling suspensions A system for determining properties of settling suspensions includes a settling container, a mixer, and devices for ultrasonic interrogation transverse to the settling direction. A computer system controls operation of the mixer and the interrogation devices and rec... | 11/28/2006 |
| 7047809 | Ultrasonic monitor of material composition and particle size A method and apparatus for determining the composition of a containerized material, typically a suspension, through which ultrasonic waves are passed. The component ratios and particle sizes of a stationary or flowing material are determined by measuring ultrasonic ... | 05/23/2006 |
| 7000781 | Filtering 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 |
| 6946056 | Method for regulating the manufacturing of pulp by optically measuring the amount of hexenuronic acid Method for enabling the paper pulp production process to be controlled in such a way that the hexenuronic acid content in the pulp can be minimized and the color reversion of the pulp and/or the pulp products thereby minimized. The method is based on measurements of... | 09/20/2005 |
| 6935164 | Refiner 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 |
| 6884320 | Method 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 |
| 6746572 | Method for determining a characteristic value for the binding force potential of suspended paper fibers and use of this method Method for determining a characteristic value for a binding force potential of paper fibers in a fibrous suspension. The method includes measuring an air content of the fibrous suspension and deriving the characteristic value from the measuring. ... | 06/08/2004 |
| 6598457 | Method and apparatus for measuring the amount of entrained gases in a liquid sample A method and an apparatus are provided for measuring the amount of entrained gases in a liquid sample. A conduit defining a volume is provided. The conduit has an inlet at a lower end thereof and an outlet at an upper end thereof. Liquid sample is made to... | 07/29/2003 |
| 6589389 | Test method for determining bleed-throughs in old corrugated container fiber pulp A test method for analyzing an OCC fiber pulp, to quantify the content therein of contaminants creating bleed-throughs in a paper product formed from the pulp. A sample of the pulp is formed into a sheet, and bleed-throughs are created from the contaminan... | 07/08/2003 |
| 6523395 | Method 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 |
| 6470734 | Method and arrangement for measuring fluid The invention relates to a method and an arrangement for measuring a fluid. Electromagnetic radiation is used to measure the consistency, flow and/or gas content of a fluid flowing in a process pipe (102). At least two of the measurements are carried out ... | 10/29/2002 |
| 6459251 | Method and device for measuring concentration A device for measuring concentration of a flowing suspension wherein a moveable detector body (3) is arranged for detecting the resistance against movement in the suspension, and including a flow modifying element (4) for bringing a portion of the suspens... | 10/01/2002 |
| 6432265 | Sampling method and method for cleaning sampling apparatus The object of the invention is a sampling apparatus in a continuous industrial process for taking a sample of the substance to be monitored. The sampling apparatus is located on the wall of the pulp tank and it includes a sample chamber, which is equipped... | 08/13/2002 |
| 6361963 | Biofilm growth device A method and apparatus for determining the effect of various agents on the growth of biological material (biofilm), microbially-influenced corrosion and the deposition of organic and inorganic contaminants is disclosed. The method and apparatus allow for ... | 03/26/2002 |
| 6343501 | System and method for determining the process viscosity of a fluid in a film metering device The system and the method are used to determine the process viscosity (μ) of a fluid (22) in a film metering device (10) used to form a film (24) to be applied on a substrate (20), such as a paper web or any other suitable flexible materials. The apparen... | 02/05/2002 |
| 6263725 | On-line sensor for colloidal substances A method and apparatus are for characterizing colloids by successive measurements of light attenuation or emission of a colloidal mixture at two or more temperatures and at one or more wavelengths. The difference or ratio of the measurements at two or mor... | 07/24/2001 |
| 6230550 | Method and apparatus for measuring the properties of a composition or a component thereof used in the processing of a paper or board web The present invention relates to a method and apparatus for measuring the properties of a composition or a component thereof used in the processing of a paper or board web. According to the invention, a sample of the composition to be measured is taken in... | 05/15/2001 |
| 6204672 | System for producing paper product including a compact high-resolution under wire water weight sensor array A measurement apparatus for sensing three properties of materials including a fixed impedance element coupled in series with the sensor array between an input signal and a reference potential (e.g. ground). The sensor array exhibits a variable impedance r... | 03/20/2001 |
| 6151957 | Measuring device comprising an excitable frequency gauge A device for measuring a parameter such as the mass concentration or the viscosity of a fluid medium such as a suspension or a liquid, including a rotor for rotation in the medium, a drive motor, a drive transmission with a drive shaft for the rotor, and ... | 11/28/2000 |
| 6125688 | Method of determining pulp properties The present invention is related to a method of determining the amount of gas in a liquid. The method is particularly well suited for determining the amount of both the gas in the form of bubbles and the gas dissolved in pulp, i.e. in various fiber suspen... | 10/03/2000 |
| 6087837 | Compact high resolution under wire water weight sensor array A measurement apparatus for sensing three properties of materials including a fixed impedance element coupled in series with the sensor array between an input signal and a reference potential (e.g. ground). The sensor array of the apparatus is an electrod... | 07/11/2000 |
| 6019872 | Authenticatable bleached chemical paper products An authenticable paper product is prepared from a bleached chemical papermaking furnish containing a minor but detectable amount of lignin containing fibers selected from the group consisting of mechanical, thermomechanical, chemi-thermomechanical and ... | 02/01/2000 |
| 5970783 | Pulp chip fissure test device and method for estimating screened pulp yield The invention consists of a method and apparatus for estimating screened pulp yield using water uptake rate of a sample of screened pulp chips. A dried chip sample is placed in a wire basket and totally immersed in water. A balance records the rate of wat... | 10/26/1999 |
| 5954922 | Method 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 |
| 5936151 | Method and apparatus for measuring an electrical property of papermaking furnish An apparatus for determining an electrical characteristic of a papermaking furnish includes a sample chamber having first and second sections for containing a sample of the papermaking furnish. A fiber-collecting screen having a mesh sufficient to inhibit... | 08/10/1999 |
| 5710373 | Visual comparator with test chart and method for evaluating contamination of washing fluids A visual comparator for use in evaluating the nature and extent of contamination in a solvent used for cleaning mechanical parts. The comparator comprises an opaque frame, and an array of viewing apertures is formed in the frame. Each of said apertures is... | 01/20/1998 |
| 5686660 | Consistency transmitter The invention relates to concentration measurement transmitters, more specifically to an arrangement for a static, blade-type transmitter, which includes a blade active in the medium to be measured and suspended by a spindle such that shear force moment a... | 11/11/1997 |
| 5684247 | Rotating consistency transmitter impeller and method An improved impeller for a rotating consistency transmitter and a method of measuring the consistency of pulp slurry flowing in a main pipeline. The impeller includes an intercepting surface designed to minimize the creation of turbulence in pulp slurry a... | 11/04/1997 |
| 5495751 | Streaming 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 |
| 5454912 | Suspension quality monitoring apparatus A sample of slurry is withdrawn continuously from a pressure pipe through which the slurry flows by a diluting sample-extractor mounted on the pipe. Dilution water is added continuously to the extractor to mix with the withdrawn sample to provide dilute s... | 10/03/1995 |
| 5365775 | Process 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 |
| 5069753 | Method for making dry sheet-like sample of solid particles from a suspension In a method and apparatus for making a dry sheet-like sample of solid particles from a suspension, a part of the suspension is sampled by a sampling unit as it flows through a pipe or while it is retained in a storage tank, then the sampled suspension is ... | 12/03/1991 |
| 5026455 | Method for automatic determination of the dry pulp content, the infiltration capacity and the wire retention of a pulp suspension A method and an apparatus for the automatic determination of the dry pulp content, the infiltration capacity and the wire retention of a pulp suspension. In the method the automatically or manually taken pulp suspension sample is brought to the sample con... | 06/25/1991 |
| 4963229 | System and method for continuous measurement of pulp consistency in a blowline of a continuous pulp digester A system and method to continuously determine the pulp consistency in the discharge blowline (112) of a continuous pulp digester (100) having a gamma gauge (116) disposed adjacent to the blowline (112) for continuous measurement of the intensity of gamma ... | 10/16/1990 |
| 4895019 | Procedure for measuring the relative quantities of pulp components in wood or paper pulp A procedure for measuring the relative quantities of pulp components in wood or paper pulp, wherein for the pulp components (a,b) present in the pulp, for each one separately, is measured the distribution, or probability density, function (ba, ... | 01/23/1990 |
| 4891098 | Dynamic 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 |
