Moisture Content Or Absorption Characteristic Of Material Patents (Class 73/73)
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Patent number: 6649740Abstract: A hydratable oxidized keratin composition comprising one or more metal ion species capable of absorbing water to form a hydrogel. The keratin material is useful as a soil amendment providing organic and inorganic nutrients. The keratin material is also useful as a nutrient source in the bioremediation of toxic contaminants soils and liquids.Type: GrantFiled: March 1, 2000Date of Patent: November 18, 2003Assignee: Keraplast Technologies, Ltd.Inventors: Robert Allen Smith, Scott F. Timmons, Mark E. Van Dyke, Cheryl R. Blanchard, Arlene J. Siller-Jackson
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Patent number: 6647799Abstract: An apparatus and method are provided for continuously measuring the soil strength on-the-fly and at different depths. The apparatus includes a downwardly extending probe having an impedance sensor mounted on a leading edge thereof so as to be impacted by the soil as the probe is moved in a horizontal direction therethrough. A reciprocating drive is also provided which is effective for simultaneously oscillating the probe in an up and down movement while it is passing horizontally through the soil. The mechanical impedance exerted upon the sensor is then measured as the probe is passed both horizontally and up and down through said soil, thereby providing a continuous depth-variable profile of the soil strength over a large area.Type: GrantFiled: January 16, 2002Date of Patent: November 18, 2003Assignees: The United States of America as represented by the Secretary of Agriculture, Auburn UniversityInventors: Randy L. Raper, Eric H. Hall
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Patent number: 6644103Abstract: A method of detecting a dry/wet state of a thermistor bead comprises the steps of: generating a current waveform that transitions between first and second current levels; conducting the current waveform through the thermistor bead; measuring a voltage waveform across the thermistor bead in response to the current waveform; measuring a slope of the voltage waveform in response to the first and second current levels and generating a first signal indicative of the measured slope; differentiating the voltage waveform to produce a voltage pulse representative of a transition of the voltage waveform from one voltage potential to another and generating a second signal indicative of the polarity of the voltage pulse; and detecting the dry/wet state of the thermistor bead based on the first and second signals. Apparatus for embodying this detection method is also disclosed.Type: GrantFiled: December 5, 2002Date of Patent: November 11, 2003Assignee: Simmonds Precision Products, Inc.Inventor: Robbie William Hall
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Publication number: 20030200797Abstract: A continuous flow moisture analyzer (20) includes a coaxial needle (34) having first and second needle portions (36, 38). The first needle portion (36) receives a carrier gas (24) and expels the carrier gas (24) through an output orifice (60). The second needle portion (38) has an input orifice (62) for receiving the carrier gas (24) expelled from the output orifice (60). A housing (40) encloses the output orifice (60) and the input orifice (62) when the moisture analyzer (20) is in a standby mode to obtain a baseline moisture content of the carrier gas (24) within the moisture analyzer (20). A bottle (48) retains a sample material (50). When the analyzer (20) is in an active mode, the coaxial needle (34) penetrates a septum (52) of the bottle (48) to position the output and input orifices (60, 62) in the bottle (48). The carrier gas (24), expelled from the output orifice (60), absorbs moisture from the sample material (50) in the bottle (48).Type: ApplicationFiled: May 12, 2003Publication date: October 30, 2003Inventor: William G. Sadler
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Patent number: 6637259Abstract: A portable grain moisture measurement device automatically initiates testing at a predetermined grain compression and is calibrated to commercial moisture testers found in various commercial grain elevators so the user can select the commercial tester he wants to match moisture measurements with. The portable meter user can thus set the tester to match the commercial tester which will be testing his grain and can also perform calibration offset adjustments to further conform measurements between his meter and the particular commercial tester actually used, relative to the default moisture curves for each commercial tester, and each type of grain.Type: GrantFiled: August 20, 2001Date of Patent: October 28, 2003Assignee: Worens Group Inc.Inventors: Trent A. McElhaney, James T. Falbo, John W. Dubay
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Patent number: 6629057Abstract: The present invention provides improved systems and methods for verifying accurate test performance of monitoring systems, particularly for point-of-care service. Such monitoring systems typically include a test element containing the test reagent(s), and an electronic analyzer device. A blood or other patient sample is applied to the test element, which is introduced to the analyzer. As the reaction proceeds, the analyzer stores the data and outputs the testing result. Accuracy in the result is dependent upon proper functioning of both the test element and the analyzer. The systems of the present invention provide indicators to evaluate the integrity of the test elements and a verification device to evaluate the performance of the analyzer. Such systems may be provided as kits with instructions for use.Type: GrantFiled: November 5, 1999Date of Patent: September 30, 2003Assignee: Beckman Coulter, Inc.Inventors: Stephen E. Zweig, Thomas D. Downey, Benjamin J. Spink, Benjamin G. Meyer
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Patent number: 6622546Abstract: A moisture content tester for non-destructive multipurpose testing that may be arranged in a drying apparatus or a testing box for proceeding a test of moisture content for an object to be tested and further have setting function for instructable water-containing rate is comprised of shell body, circuit plate, temperature compensation temperature-sensing bar, emitting pole, receiving pole, and controlling unit. A high frequency is emitted from the emitting pole and received by the receiving pole. Again, the received high frequency (sawtooth waveform) signal is transferred to the controlling unit through the circuit plate. The controlling unit then calculates the value of moisture content according to the received high frequency signal and the temperature value measured by the temperature compensation temperature-sensing bar. Further, the drying motion or displayed water-containing rate of the drying apparatus is controlled according to the value of moisture content.Type: GrantFiled: December 21, 2001Date of Patent: September 23, 2003Inventor: Juen-Kong Wu
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Patent number: 6615643Abstract: Methods, systems, and computer program products determine absorption, specific gravity, and/or porosity of construction materials undergoing analysis corresponding to different measurements of material samples divided from a “parent” construction material sample. Dry and wet weights of the samples are obtained under different conditions. In certain embodiments, the material sample is an aggregate that is held in liquid in a volumetric container and the container with the liquid and aggregate is weighed. Another weight of a second sample can be obtained. The second sample is encased in an evacuated vacuum-sealed bag that is opened while immersed in a liquid bath, at which time the weight can be obtained. The weight data can be used to calculate the parameter of interest.Type: GrantFiled: October 11, 2001Date of Patent: September 9, 2003Assignee: InstroTek, Inc.Inventors: Lawrence James, Ali Regimand
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Patent number: 6612158Abstract: A web is passed over a surface (11) which is at least partly curved in the running direction of the web, which extends across the web in the cross direction, and which is placed at a distance from the web, in which connection an air cushion is formed between the moving web and the curved surface. The temperature and moisture of the web are measured indirectly by measuring the temperature and moisture of the air cushion by several detectors (41) which are in communication with openings (40) formed in the curved surface in spaced relationship with one another in the cross direction of the web.Type: GrantFiled: April 29, 2002Date of Patent: September 2, 2003Assignee: Metso Paper, Inc.Inventors: Reijo Huuskonen, Antti Komulainen, Matti Kurki
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Patent number: 6604409Abstract: The cigar moisture meter comprises a probe engaged to an ohmmeter circuit, the probe being injected into the tip of a cigar to provide a reading of moisture content within the cigar by a measurement of resistance across the leads of the probe.Type: GrantFiled: October 30, 2001Date of Patent: August 12, 2003Inventor: Rudolph C. Caldwell
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Patent number: 6601440Abstract: An apparatus for detecting saturation of water in soil includes a housing including a lower section adapted for insertion in soil, a filter for permitting water into the housing while blocking soil, a sensor unit received in the housing for sending a signal when water level reaches a pre-determined position, and a control unit for receiving the signal from the sensor unit and for processing the signal.Type: GrantFiled: April 5, 2002Date of Patent: August 5, 2003Assignee: Taiwan Water & Soil Instrumentation, Inc.Inventor: Hsu-Chen Chuang
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Patent number: 6591689Abstract: A pressure sensor has a sensor chip with a diaphragm formed therein and bumps formed thereon, and a stem with leads extending from a surface thereof to the sensor chip. The bumps and the leads are electrically connected by face down bonding so that a surface of the sensor chip faces the surface of the stem. In this manner, bonding wires are unnecessary. Therefore, an area for disposing the bonding wires in the stem can be cut down, so that the pressure sensor can be miniaturized.Type: GrantFiled: June 29, 2001Date of Patent: July 15, 2003Assignee: Denso CorporationInventors: Akira Nidan, Takafumi Taki, Hideaki Hara, Michihiro Masuda, Kaname Ban, Kazuo Tanaka, Yoshifumi Murakami
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Publication number: 20030115938Abstract: A moisture content tester for non-destructive multipurpose that may be arranged in a drying apparatus or a testing box for proceeding a test of moisture content for an object to be tested and further have setting function for instructable water-containing rate is comprised of shell body, circuit plate, temperature compensation temperature-sensing bar, emitting pole-plate, receiving pole-plate, and controlling unit. A high frequency wave is emitted from the emitting pole-plate and received by the receiving pole-plate. Again, the received high frequency (sawtooth waveform) signal is transferred to the controlling unit through the circuit plate. The controlling unit then calculates the value of moisture content according to the received high frequency signal and the temperature value measured by the temperature compensation temperature-sensing bar. Further, the drying motion or displayed water-containing rate of the drying apparatus is controlled according to the value of moisture content.Type: ApplicationFiled: December 21, 2001Publication date: June 26, 2003Inventor: Juen-Kong Wu
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Patent number: 6581445Abstract: Method and system for monitoring and identifying moisture intrusion in soil such as is contained in landfills housing radioactive and/or hazardous waste. The invention utilizes the principle that moist or wet soil has a higher thermal conductance than dry soil. The invention employs optical time delay reflectometry in connection with a distributed temperature sensing system together with heating means in order to identify discrete areas within a volume of soil wherein temperature is lower. According to the invention an optical element and, optionally, a heating element may be included in a cable or other similar structure and arranged in a serpentine fashion within a volume of soil to achieve efficient temperature detection across a large area or three dimensional volume of soil. Remediation, moisture countermeasures, or other responsive action may then be coordinated based on the assumption that cooler regions within a soil volume may signal moisture intrusion where those regions are located.Type: GrantFiled: June 29, 2000Date of Patent: June 24, 2003Assignee: Sandia CorporationInventor: Jonathan D. Weiss
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Patent number: 6577143Abstract: The drying time of a piece of wood can be determined by the present apparatus and method, based on a current signal passing through the piece of wood. A set of first and second electrodes of a probe are inserted into the piece of wood which may be travelling on a conveyor. The second electrode has an input for receiving electric power. The first electrode has an output for transmission of the current signal having passed through the piece of wood. The probe is driven toward and away from the piece of wood by a driving mechanism controlled by a control circuit. A measuring circuit is coupled to the outputs of the electrodes. The current signals are measured by the measuring circuit, which determines the drying time of the piece of wood.Type: GrantFiled: October 18, 2001Date of Patent: June 10, 2003Assignee: Fabrication Delta, Inc.Inventors: François Arsenault, Paul Giasson, Gilles Arsenault
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Patent number: 6568249Abstract: A method and apparatus for determining the saturated, surface dry (SSD) condition point of aggregates includes warm air-drying of a water saturated aggregate sample of known initial weight. The sample is rotated in an open mesh screened drum, and heated ambient air is passed radially through the drum and the sample to remove water. Initially surface water is removed, followed by pore water. The loss in water weight and the exit air relative humidity (EAH) is tracked by sensors and recorded. The EAH values change significantly at the SSD point. Following SSD point determination, the test procedure continues until all free water is removed from the sample to determine total moisture content of the sample.Type: GrantFiled: August 7, 2001Date of Patent: May 27, 2003Assignee: Gilson Company, Inc.Inventor: Patrick C. Devine
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Patent number: 6570395Abstract: A portable grain moisture measurement device has an automatic grain moisture measurement actuation system whenever the compaction of the grain within a test cell of the device is at a preset value and upon such automatic actuation a visual display is activated to indicate that a moisture measurement is being taken as well as the sounding of an audible alarm indicating this measurement to warn the user that further compaction of the grain is unnecessary.Type: GrantFiled: August 2, 2001Date of Patent: May 27, 2003Assignee: Worens Group Inc.Inventors: James T. Falbo, John W. Dubay, Trent A. McElhaney
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Publication number: 20030089165Abstract: An adsorbent state determining apparatus is provided for accurately determining the state of an adsorbent including a deterioration while ensuring elimination of the influence of impurities sticking on a sensor element of a humidity sensor. The adsorbent state determining apparatus determines the state of an adsorbent disposed in an exhaust system of an internal combustion engine for purifying exhaust gases. The adsorbent is capable of adsorbing hydrocarbons and moisture within exhaust gases.Type: ApplicationFiled: November 8, 2002Publication date: May 15, 2003Applicant: HONDA GIKEN KOGYO KABUSHIKI KAISHAInventors: Hideharu Yamazaki, Kei Machida, Masaki Ueno
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Patent number: 6561012Abstract: A continuous flow moisture analyzer (20) includes a coaxial needle (34) having first and second needle portions (36, 38). The first needle portion (36) receives a carrier gas (24) and expels the carrier gas (24) through an output orifice (60). The second needle portion (38) has an input orifice (62) for receiving the carrier gas (24) expelled from the output orifice (60). A housing (40) encloses the output orifice (60) and the input orifice (62) when the moisture analyzer (20) is in a standby mode to obtain a baseline moisture content of the carrier gas (24) within the moisture analyzer (20). A bottle (48) retains a sample material (50). When the analyzer (20) is in an active mode, the coaxial needle (34) penetrates a septum (52) of the bottle (48) to position the output and input orifices (60, 62) in the bottle (48). The carrier gas (24), expelled from the output orifice (60), absorbs moisture from the sample material (50) in the bottle (48).Type: GrantFiled: October 20, 2000Date of Patent: May 13, 2003Assignee: Arizona Instrument LLCInventor: William G. Sadler
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Patent number: 6559771Abstract: A sensing and measuring circuit, employing a positive-temperature-coefficient sensing device, for detecting the presence and approximately measuring the quantity or concentration of heat-absorptive substances such as water. May be used for sensing a quantity of rainfall or irrigation water, or for detecting and giving an alarm or initiating remediation for leakage of water, oil, or other fluids from confinement to an unauthorized location.Type: GrantFiled: September 12, 2001Date of Patent: May 6, 2003Assignee: Lansense, LLCInventor: Donald G. Landis
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Patent number: 6557398Abstract: A method of measuring the liquid retention of absorbent articles (20) of the kind that includes an absorbent body having a top side which lies proximal to the wearer's skin when the article is worn, and a bottom side which is covered by a liquid-impermeable backing sheet, wherein the method comprises the steps of applying a determined amount of liquid to a region on the top side of the article, urging a pressure body (1) against a region of the top side of the article with a given force, and collecting and measuring the amount of liquid pressed out from the top side of the article. The force with which the pressure body (1) is pressed against the top side of the article, is set selectively on a device (2-4) for pressing the pressure body against the top side of the article (20), and the liquid pressed from the top side of the article is transported to a measuring vessel (15) with the aid of sub-pressure.Type: GrantFiled: March 26, 2002Date of Patent: May 6, 2003Assignee: SCA Hygiene Products ABInventors: Karin Lindmark, Christina Steger, Johan Granath, Berith Porso
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Patent number: 6557397Abstract: A process for evaluating the quality of a printing ink is provided, wherein a defined quantity of the printing ink is stirred; a force or torque to be applied during the stirring is measured, and a defined quantity of moistening agent is added to the ink at a defined point in time. A device for evaluating the quality of the printing ink is also provided with a container for the printing ink; a stirring device, with which an ink filled into the container can be stirred; a measuring device for measuring the force to be applied by the stirring device or the torque to be applied; a moistening agent supply and a control, which actuates the feed of moistening agent such that a predetermined quantity of moistening agent is introduced into the container at a defined point in time.Type: GrantFiled: April 11, 2002Date of Patent: May 6, 2003Assignee: Maschinenfabrik WifagInventor: Robert Langsch
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Patent number: 6559659Abstract: A soil moisture sensing device for sensing moisture levels in a particular soil area. The device has a porous body with at least two zones, a first one of the zones having pore sizes that approximate a range of pores in typical soils, a second one of the zones having pores arranged to be small enough to remain hydrated at higher matric tensions. The first and second zones contain respective electrodes, each being paired with an electrode common to both zones. As the matric tension of the soil solution increases, the pores within the first zone dehydrate causing increased resistance between the first electrode and the common electrode while the pores in the second zone remain hydrated, the resistance between the second electrode and the common electrode changing only in response to conductivity of the soil solution in the second zone.Type: GrantFiled: August 27, 2001Date of Patent: May 6, 2003Inventor: Kenneth James Cuming
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Patent number: 6553813Abstract: A moisture meter (1) has a hand-held casing (2) with a digital microcontroller (50), LCD display (4), and a keypad (3). Spring-loaded contacts (6) contact material and allow capacitive impedance measurement via electrodes (5) and drive/pickup circuits (20). Also, a relative humidity probe (9) provides an input so that the processor generates both moisture contact near-surface measurements and also relative humidity measurements. This allows optimum analysis of material.Type: GrantFiled: February 28, 2001Date of Patent: April 29, 2003Assignee: Rynhart Research LimitedInventors: Alan Rynhart, John Fallon, James McIlroy
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Patent number: 6549136Abstract: A sensor and associated circuitry for sensing and reacting to the presence of a fluid or other material having heat capacity. A positive-temperature-coefficient device initiates a switching step when the amount of heat-capacity material reaches a certain level, or is totally absent. The switching step may trigger an alarm or control circuit to rectify the fluid level.Type: GrantFiled: September 13, 2001Date of Patent: April 15, 2003Assignee: Lansense, LLCInventor: Donald G. Landis
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Patent number: 6539780Abstract: A pressure self-compensating tensiometer and method to in situ determine below grade soil moisture potential of earthen soil independent of changes in the volume of water contained within the tensiometer chamber, comprising a body having first and second ends, a porous material defining the first body end, a liquid within the body, a transducer housing submerged in the liquid such that a transducer sensor within the housing is kept below the working fluid level in the tensiometer and in fluid contact with the liquid and the ambient atmosphere.Type: GrantFiled: February 22, 2001Date of Patent: April 1, 2003Assignee: Bechtel BWXT Idaho, LLCInventors: Joel M. Hubbell, James B. Sisson
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Patent number: 6536270Abstract: A scanner for moving sheet materials such as a paper making machine provides the gauging heads which measure parameters such as basis weight and moisture entirely inside an enclosed tubular beam. Each gauging head is driven in a cross direction perpendicular to the moving sheet direction and includes a seal belt for dust and dirt protection by covering a slot in the beam, except where the gauging is located.Type: GrantFiled: June 20, 2001Date of Patent: March 25, 2003Assignee: Voith Paper Automation, Inc.Inventors: Lee L. Henry, Steven Nelson
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Patent number: 6532804Abstract: An on-line moisture analyzer and method of analyzing the moisture content of an ore concentrate. A sample conveyor moves a sample of the concentrate to be analyzed to an aluminum pan that receives and holds the sample of the concentrate. A horizontal linear slide having a pneumatic vertical lift mounted to rotary arm is detachably connected to the aluminum pan by gripping fingers that detachably engage the pan. A scale is accessible by the conveyance member for weighing the sample. An oven also accessible by the conveyance member has a door that has a complimentary shape relative to a cross section of the sample container and conveyance member is used for heating the sample. A programmable logic controller controls the conveyance member and the oven door. A data processing unit receives data from the scale and determines a moisture content based on the data.Type: GrantFiled: May 15, 2001Date of Patent: March 18, 2003Assignee: Cliffs Mining Services CompanyInventor: David William Hendrickson
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Patent number: 6532803Abstract: A detection assembly for detecting moisture within an unsaturated permeable soil or soil-like medium is disclosed which includes a funnel 11 having a surface inclined in use to the vertical for distorting the flow streamlines within the medium to cause an increase in fluid content and saturation at points in the permeable medium; a cup 13 beneath the funnel for collecting free fluid from the saturated permeable medium; a sensor 14 for detecting the presence of free fluid formed upon saturation within the permeable medium, and a vent 16 for venting air from said collection means.Type: GrantFiled: August 27, 1999Date of Patent: March 18, 2003Assignee: Commonwealth Scientific and Industrial Research OrganisationInventors: Paul Andrew Hutchinson, Richard Stirzaker
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Patent number: 6526731Abstract: A forage compactor for compressing forage or crop into bales of increased crop density for transportation. A crop feed area feeds crop to a conveyor where it is moved to a scale area for proper bale weight. An indexer severs the crop while moving it from the scale area to the compression chamber. The crop is compressed and moved to a strapping chamber where straps are applied to the compressed crop. The bound bale is manipulated as desired at the product handling area downstream from the strapping chamber. The crop is provided with substantially constant stress during compression and moisture sensors in the strapping chamber sense the moisture content of the severed crop within the bale to be bound. The weight of the crop within the compression area may be reduced to reduce machine overloading. Keyway plungers provide reduced side loading on the main ram used for crop compression.Type: GrantFiled: May 26, 2000Date of Patent: March 4, 2003Assignee: HWD Holdings Ltd.Inventors: Douglas Andrew Hunter, Richard Wayne Littlewood
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Publication number: 20030037604Abstract: A tool for conducting localized testing of the integrity of a pressure seal on an aircraft. The tool comprises a body having an exterior surface and an interior cavity. A peripheral edge on the body defines an opening to the interior cavity. The tool is positioned on an aircraft over the pressure seal to be tested with the interior cavity communicating with the pressure seal. A sealing member is positioned between the aircraft and the peripheral edge so that a fluid tight seal is formed between the tool and the aircraft. A vacuum is created in the interior cavity. After a predetermined length of time the amount of vacuum in the interior cavity is observed and the integrity of the pressure seal is determined.Type: ApplicationFiled: August 27, 2001Publication date: February 27, 2003Inventor: Daniel D. Poblete
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Publication number: 20030033862Abstract: A portable grain moisture measurement device automatically initiates testing at a predetermined grain compression and is calibrated to commercial moisture testers found in various commercial grain elevators so the user can select the commercial tester he wants to match moisture measurements with. The portable meter user can thus set the tester to match the commercial tester which will be testing his grain and can also perform calibration offset adjustments to further conform measurements between his meter and the particular commercial tester actually used, relative to the default moisture curves for each commercial tester, and each type of grain.Type: ApplicationFiled: August 20, 2001Publication date: February 20, 2003Inventors: Trent A. McElhaney, James T. Falbo, John W. Dubay
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Patent number: 6517679Abstract: The invention concerns a method for determination of an irreversible stretch and of a dynamic modulus of elasticity from a paper web (W). In the method, the irreversible stretch and the dynamic modulus of elasticity are determined from h paper web (W) by means of on-line measurement. The invention also concerns a method in which the quantities that have been determined are employed in the control of the papermaking process.Type: GrantFiled: August 25, 2000Date of Patent: February 11, 2003Assignee: Metso Paper, Inc.Inventors: Harri Mustonen, Pekka Pakarinen, Mika Tammenoja
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Publication number: 20030024301Abstract: The measuring device comprises at least one measuring head having a reference part, which comprises a reference surface against which the moving web is supported. The reference surface comprises a measuring area in the inside of which the property of the web is measured. The reference part is arranged in connection with the measuring head in such a way that below the reference part, there is a substantially open air space. The measuring head comprises means for generating negative pressure in the air space below the reference part, and the reference part comprises holes formed through it, in such a way that the negative pressure generated in the air space affects through the reference part the space between the reference surface and the moving web in such a way that the web is supported against the reference surface substantially over the whole area of the measuring area.Type: ApplicationFiled: July 2, 2002Publication date: February 6, 2003Applicant: Metso Paper Automation OyInventors: Jussi Graeffe, Timo Saikanmaki, Mauri Ojala, Jari Koivu, Hannu Moisio
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Publication number: 20030015024Abstract: A sensor to detect the presence of water or moisture in bulk materials includes a standard circuit board and a three element transmission line. The sensor electronics include an oscillator responsive to a direct current voltage supply which provides a square wave voltage signal. The sensor electronics further include a phase detector which detects the difference in phase between the reference square wave voltage signal and a signal provided to the transmission line buried in a medium. The phase difference is proportional to the dielectric constant of the medium surrounding the transmission line.Type: ApplicationFiled: July 13, 2001Publication date: January 23, 2003Inventors: Gaylon S. Campbell, Warren C. Greenway
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Patent number: 6508132Abstract: A load cell for use in dynamic testing apparatus for mechanically testing samples includes an accelerometer mounted in the load cell on the same axis as the line of action of the mechanical force applied to the specimen under test. The resultant signal from the combination of the normal output from the load cell and the output from the accelerometer compensates for errors introduced by the mass of the moving grip used to grip the specimen in the apparatus.Type: GrantFiled: February 17, 1999Date of Patent: January 21, 2003Assignee: Instron CorporationInventors: Raymond David Lohr, Paul Derek Hayford, Chanchal Singh Bahra
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Patent number: 6499338Abstract: Moisture management indexes are determined for a textile sandwiched between two plates. Electrical conductors arranged in concentric opposing pairs are used to measure changes in electrical resistance of the fabric. A quantity of water (or other chosen liquid) is poured down a guide pipe and changes of resistance measured against time. From this data, specific indexes are determined, in a repeatable fashion, and used for determining moisture management characteristics of the fabric.Type: GrantFiled: March 20, 2001Date of Patent: December 31, 2002Assignee: Hong Kong Polytechnic UniversityInventors: Yi Li, Weilin Xu, Kwok-wing Yeung, Yi-lin Kwok
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Publication number: 20020189329Abstract: A device for determining moisture has an LC-oscillating circuit (1) as a transducer and an oscillator (2) for exciting the oscillating circuit (1). Further, the device for determining moisture has a tuning device (3) for frequency-wise tuning the oscillator (2) and a measuring and evaluation circuit (4) to determine an attenuation condition of the oscillator (2) and to provide a signal that is proportional to a degree of moisture at the transducer (1). The transducer (1) and the oscillator (2) are coupled in a contact-free manner.Type: ApplicationFiled: June 7, 2002Publication date: December 19, 2002Inventor: Willi Wimmer
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Publication number: 20020185240Abstract: The invention is directed to a system and method for implementing process control for paper elasticity and thickness using sonic NDE techniques. The system may, for example, generate ultrasound waves in a test object during the manufacturing process. A detector such as an interferometer may be used to detect the ultrasound waves. An interpreter or analyzer may determine the thickness and/or elastic properties of paper from the waves. Then, a control system may determine and implement an appropriate control action on the process.Type: ApplicationFiled: May 9, 2002Publication date: December 12, 2002Inventor: Thomas E. Drake
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Publication number: 20020170343Abstract: An on-line moisture analyzer and method of analyzing the moisture content of an ore concentrate. A sample conveyor moves a sample of the concentrate to be analyzed to an aluminum pan that receives and holds the sample of the concentrate. A horizontal linear slide having a pneumatic vertical lift mounted to rotary arm is detachably connected to the aluminum pan by gripping fingers that detachably engage the pan. A scale is accessible by the conveyance member for weighing the sample. An oven also accessible by the conveyance member has a door that has a complimentary shape relative to a cross section of the sample container and conveyance member is used for heating the sample. A programmable logic controller controls the conveyance member and the oven door. A data processing unit receives data from the scale and determines a moisture content based on the data.Type: ApplicationFiled: May 15, 2001Publication date: November 21, 2002Applicant: CLIFFS MINING SERVICES COMPANYInventor: David William Hendrickson
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Publication number: 20020167412Abstract: The present specification discloses a soil mixture sensing device for sensing moisture levels in a particular soil area under surveillance, the device having a porous body (11) which in use is placed in the soil area under surveillance, the body (11) having at least two zones, a first one of said zones (11) having pore sizes that approximate a range of pores in typical soils, a second one of the zones (14) having pores arranged to be small enough to remain hydrated at matric tensions of the soil solution significantly above those which cause the first zone (11) to dehydrate, the first zone (11) containing a first electrode (12) and the second zone (14) containing a second electrode (16), each of which are paired with an electrode (17) common to both said zones (11) and (14) whereby, as the matric tension of the soil solution in the soil in the surveillance area increases, the pores within the first zone (11) progressively dehydrate causing electrical resistance between the first electrode and the common electType: ApplicationFiled: August 27, 2001Publication date: November 14, 2002Applicant: Kenneth James CumingInventor: Kenneth James Cuming
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Publication number: 20020162387Abstract: Testing process and apparatus for determining absorption properties of a porous specimen. The porous specimen is brought in a predetermined state of contact with the body of water held by a reservoir, for inducing water absorption in the porous specimen. A weight of the porous specimen is monitored for a predetermined time period once the contact is established to produce weight data over time. The predetermined state of contact is maintained substantially constant during the time period by permanent circulation of water in the reservoir. The absorption properties of the porous specimen are determined as a function of the weight data over time.Type: ApplicationFiled: March 22, 2002Publication date: November 7, 2002Inventors: Paul Lavallee, Michel Kuntz
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Publication number: 20020148287Abstract: A process for evaluating the quality of a printing ink is provided, wherein a defined quantity of the printing ink is stirred; a force or torque to be applied during the stirring is measured, and a defined quantity of moistening agent is added to the ink at a defined point in time. A device for evaluating the quality of the printing ink is also provided with a container for the printing ink; a stirring device, with which an ink filled into the container can be stirred; a measuring device for measuring the force to be applied by the stirring device or the torque to be applied; a moistening agent supply and a control, which actuates the feed of moistening agent such that a predetermined quantity of moistening agent is introduced into the container at a defined point in time.Type: ApplicationFiled: April 11, 2002Publication date: October 17, 2002Inventor: Robert Langsch
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Patent number: 6463794Abstract: Method and device for non-invasively determining moisture content and uniformity of solid plant matter during on-line drying or cooling forced-air treatment featuring measuring primary operating parameters of temperature, humidity, and flow rate of forced-air entering and exiting the volume of solid plant matter moving through an on-line drying or cooling forced-air treatment device. Empirically determined data relating the influence of secondary operating parameters of volumetric bulk material transport rate of the solid plant matter, type of the solid plant matter, and physicochemical characteristics and properties of the solid plant matter, on the sensing and measuring of the primary forced-air operating parameters are used for process correcting raw temperature, humidity, and flow rate, parametric values of the forced-air entering and exiting the solid plant matter, leading to the determination of highly accurate and reproducible values of moisture content and uniformity of the solid plant matter.Type: GrantFiled: April 10, 2000Date of Patent: October 15, 2002Assignees: Malcam Ltd., AM Vision Technologies Ltd.Inventors: Danny S. Moshe, Alexander Greenwald, Nikolay Tsypto
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Patent number: 6460480Abstract: A marker (10) for identifying plants, which is designed for inserting into soil (16), is designed in such a way that it absorbs moisture. (FIG. 1).Type: GrantFiled: August 29, 2000Date of Patent: October 8, 2002Inventors: Ulrich Schlösser, Lothar Dedden, Daniel Boxser
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Publication number: 20020139177Abstract: The present invention relates to a method of measuring the liquid retention of absorbent articles (20) of the kind that includes an absorbent body having a top side which lies proximal to the wearer's skin when the article is worn, and a bottom side which is covered by a liquid-impermeable backing sheet, wherein the method comprises the steps of applying a determined amount of liquid to a region on the top side of the article, urging a pressure body (1) against a region of the top side of the article with a given force, and collecting and measuring the amount of liquid pressed out from the top side of the article. According to the invention, the force with which the pressure body (1) is pressed against the top side of the article, is set selectively on a device (2-4) for pressing the pressure body against the top side of the article (20), and the liquid pressed from the top side of the article is transported to a measuring vessel (15) with the aid of sub-pressure.Type: ApplicationFiled: March 26, 2002Publication date: October 3, 2002Applicant: SCA HYGIENE PRODUCTS ABInventors: Karin Lindmark, Christina Steger, Johan Granath, Berith Porso
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Patent number: 6450015Abstract: A photosensitive media cartridge includes an ambient condition sensor mounted in the cartridge for sensing ambient conditions in the cartridge. When the cartridge is positioned at a media transfer position on an image-forming device that permits the conveyance of media from the cartridge to the image-forming device, image development or printing on the media in the image-forming device is controlled based on the sensed ambient conditions in the cartridge. The ambient condition sensor includes a cover layer and a conductive layer, wherein a rate of response to ambient conditions of the cover layer matches rate of response to ambient conditions of the photosensitive media to be developed. As a further option, the media itself can include a conductive layer so that the media can be the sensor.Type: GrantFiled: December 8, 2000Date of Patent: September 17, 2002Assignee: Eastman Kodak CompanyInventors: Loretta E. Allen, Lee Tutt
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Publication number: 20020124635Abstract: A moisture sensor is disclosed that includes a capsule, having a bottom portion and a top portion and an inlet for receiving fluid located at the top portion of the capsule, wherein the capsule is capable of containing at least one chemical that changes appearance in the fluid's presence. There is also a process for utilizing a moisture sensor that is disclosed. The process includes inserting at least one chemical that changes appearance when a fluid is present in a capsule, wherein the capsule has a bottom portion and a top portion and an inlet for receiving fluid located at the top portion of the capsule, and inserting the capsule into a ceiling where the bottom portion of the capsule is located below the ceiling.Type: ApplicationFiled: May 11, 2001Publication date: September 12, 2002Inventor: Steven A. Hoffman
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Patent number: 6446495Abstract: The present invention provides a new method for assessing disposable absorbent articles with regard to their impact on skin aeration by measuring relative humidity values in a mannequin test set up.Type: GrantFiled: March 2, 2000Date of Patent: September 10, 2002Assignee: The Procter & Gamble CompanyInventors: Mathias Kurt Herrlein, Muir Charles Robertson, Alexander Berk, Ulrich Kleinsteuber, Manfred Plischke
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Patent number: 6440475Abstract: A grain moisture measuring apparatus and method for measuring the moisture content of the grain as the grain moves through a grain conditioning system in which moisture is applied to the grain at a first location. The grain moisture measuring apparatus includes a sample extraction mechanism located at a point downstream from the first location where moisture is applied to the grain. The sample extraction mechanism extracts a sample of grain from the grain moving through the grain conditioning system. A grinding mechanism is connected to the sample extraction mechanism with the grain sample being transferred to the grinding mechanism which then grinds the sample to physically alter the sample. The apparatus further includes a moisture sensor positioned adjacent the grinding mechanism wherein the sample of grain is transferred to a location adjacent the moisture sensor after the grain sample is ground so that the moisture sensor measures the moisture content of the grain sample.Type: GrantFiled: September 14, 1999Date of Patent: August 27, 2002Assignee: SarTec CorporationInventors: Larry McNeff, Steve Rupp, Matt Wendorf, Joel Claflin, Clayton McNeff, Pete Greuel, Lowell Sedler