USTER TECHNOLOGIES AG Patent applications |
Patent application number | Title | Published |
20150219617 | Device For The Optical Inspection Of A Moving Textile Material - Using a substrate with at least one optical waveguide structure integrated thereon for the optical inspection of a moving textile material. A scanning region is provided on the substrate for optically scanning the textile material. The optical waveguide structure opens at least partly into the scanning region. The device arranged in this manner requires little space, can be used in a versatile manner and can be changed or maintained with very little effort. | 08-06-2015 |
20150219580 | Capacitive Measuring Circuit for Yarn Inspection - A measuring circuit used for the capacitive examination of a moving elongated textile test material such as card sliver, roving, yarn or woven fabric, having a measuring capacitor for accommodating the test material, and a component with a capacitance which can be changed by an electric control signal. The measuring circuit can thus be balanced in a simple, rapid, cost-effective and especially automatic way. | 08-06-2015 |
20150034751 | Yarn Tensioner - A combination of a disc-type yarn tensioner is proposed, comprising a pneumatic cleaning device, which is fixedly assigned thereto. The disc-type yarn tensioner comprises an axle on which two brake plates are rotatably mounted by means of one rotary bearing each. It further comprises a pressure mechanism for applying axial pressure forces to the brake plates, which pressure forces press the brake plates against each other. The pneumatic cleaning device comprises at least one nozzle whose flow axis is directed from the outside substantially towards one of the rotary bearings. The compressed air flow exiting from the nozzle cleans the disc-type yarn tensioner. It is thus ensured that the rotary bearings of the brake plates accumulate less dirt and the rotary movement of the brake plates is braked with the intended braking force. | 02-05-2015 |
20140373620 | Measuring Head - A measuring head for testing yarn, having a measuring slit for accommodating the yarn and a first yarn guide element for guiding the yarn through the measuring slit. A second yarn guide element for guiding the yarn outside of the measuring slit. The yarn path outside of the measuring slit is used when at least one of a zero point calibration and an adjustment of the measuring head needs to be performed. A measuring head arranged in this manner is especially suitable for use in classifying yarn defects in the textile laboratory. | 12-25-2014 |
20130342225 | Capacitive Analysis of a Moving Test Material - The capacitive measuring circuit for a moved elongated test material contains at least two measuring capacitors, each of which is configured for receiving the test material. It further contains electrically actuatable selection means, by means of which one of the measuring capacitors can be selected in such a way that only the selected measuring capacitor contributes to the measurement, whereas the other measuring capacitors do not. As a result, the total capacitance of the measuring circuit is reduced and its sensitivity is increased. | 12-26-2013 |
20130199287 | Auto Micronaire - A fiber testing instrument having a fiber loading station that is sized to accommodate a fiber sample within a desired size range, a fiber extraction device for extracting a portion of the fiber sample for a first battery of fiber tests, a fiber transport device for conveying at least the remaining portion of the fiber sample, and a micronaire chamber for receiving the conveyed fiber sample, where the micronaire chamber is sized to test any fiber sample within the desired size range. | 08-08-2013 |
20130068010 | Determination of Yarn Features - The device for determining features, in particular the hairiness, of a yarn includes a housing and a sensor unit attached in or on the housing for measuring at least one parameter of the yarn. The housing includes a front plate, a rear plate, and a frame located between the front plate and the rear plate. The frame is produced integrally and separately from the front plate and the rear plate, for example from a bent metal sheet. The front plate and the rear plate are designed as flat plates and fastened, by means of screw connections, to lugs that are bent inward on the frame. The housing thus has a particularly simple design. | 03-21-2013 |
20130068009 | Dual Opposing Fiber Brushing - A fiber sample conditioning system having a comb for engaging and retaining fibers to form a beard, and at least two rotating brushes for brushing the fibers simultaneously from opposite sides of the beard in a direction along the fibers away from the comb. | 03-21-2013 |
20130037329 | Impurity Weight Measurement - An apparatus for measuring the weight of impurities in a cotton sample, with a double-taker-in-roll mechanism. The apparatus includes the following components: an air current channel, a fiber feeding device located at the front end of the air current channel; a primary taker-in cylinder located behind the fiber feeding construction; a stationary stripping device located near the surface of the primary taker-in cylinder; a secondary taker-in cylinder adjacent to the surface of the primary taker-in cylinder and located behind the primary taker-in cylinder; an impurity collecting apparatus located below the primary taker-in cylinder and the secondary taker-in cylinder; and an impurity measurement apparatus connected with the impurity collecting apparatus. After double impurity removal with the primary taker-in cylinder and the secondary taker-in cylinder, the impurities are removed from the cotton sample more completely compared with the prior single taker-in cylinder structure, making the impurity measurement value more accurate. | 02-14-2013 |
20120158342 | Impurity Weight Measurement - A method for measuring the weight of impurities in a mixed volume of fibers and impurities by mechanically separating the impurities are from the fibers, whereupon some undesired fibers still remain admixed to the impurities due to imperfections of the mechanical separation. A total weight of the separated impurities and the undesired fibers is gravimetrically measured. An image of the separated impurities and the undesired fibers is created. A weight of the undesired fibers is estimated from the image. The estimated weight of the undesired fibers is subtracted from the total weight to yield a corrected weight of the impurities. The mechanical separation and the subsequent electronic correction yield a more accurate weight of the impurities. | 06-21-2012 |
20110276298 | Visual Weight Compensation - A method for determining a corrected weight of a mixed volume, by gravimetrically measuring a total weight of the mixed volume, creating an image of the mixed volume, detecting at least one selected component within the image of the mixed volume, estimating a component weight of the at least one selected component from the image of the mixed volume, and subtracting the component weight from the total weight to yield the corrected weight. | 11-10-2011 |
20110264397 | Characterizing an Elongate Textile Product - A method for characterizing a yarn moved along its longitudinal direction. Readings of a characteristic of the yarn along the longitudinal direction of the yarn are detected. Values of a yarn parameter are determined from the readings. An event field is provided, which contains a quadrant of a two-dimensional Cartesian coordinate system, whose abscissa defines an extension of yarn parameter values in the longitudinal direction and whose ordinate defines a deviation of the yarn parameter from a desired value. Densities of events in the event field are determined from the values of the yarn parameter and their extensions in the longitudinal direction. A yarn body is represented as an area in the event field. The area on the one hand is delimited by the abscissa, on the other hand by the ordinate and further by a line in the event field that substantially follows a constant event density. The representation of the yarn body permits a clearing limit to be defined in a rapid and rational manner. | 10-27-2011 |
20110254567 | Capacitive Measuring Circuit for Yarn Inspection - A measuring circuit used for the capacitive examination of a moving elongated textile test material such as card sliver, roving, yarn or woven fabric, having a measuring capacitor for accommodating the test material, and a component with a capacitance which can be changed by an electric control signal. The measuring circuit can thus be balanced in a simple, rapid, cost-effective and especially automatic way. | 10-20-2011 |
20110193572 | Determining a Dielectric Property of a Capacitor - An apparatus for determining at least one dielectric property of a capacitor arrangement, and especially for capacitive examination of a moving elongated test subject such as yarn. It contains an alternating signal generator for applying an electric alternating signal to the capacitor arrangement. The capacitor arrangement is uncoupled from the alternating signal generator by means of an amplifier in such a way that it does not relevantly influence the basic frequency and the signal shape of the applied alternating signal. Detection means detect an electric measuring variable of an electric signal tapped from the capacitor arrangement. The alternating signal generator is set up in such a way that at least one of the basic frequency and the signal shape of the applied alternating signal can be changed. | 08-11-2011 |
20110181304 | Determining a Dielectric Property of a Capacitor - An apparatus for determining a dielectric property of a capacitor arrangement, having an alternating signal generator for applying an electric alternating signal to the capacitor arrangement. It further contains an evaluation circuit for evaluating at least one electric measuring quantity of an electric signal tapped from the capacitor arrangement. It further comprises balancing means which are arranged in an electric path between the alternating signal generator and the capacitor arrangement and by means of which a parameter of the electric alternating signal can be changed in such a way that an output signal of the evaluation circuit assumes a specific value, preferably zero, under defined constant conditions. Control means are provided for emitting an electric control signal to the balancing means, by means of which the change of the at least one parameter can be controlled. The apparatus can thus be balanced in a simple, rapid, cost-effective and especially automatic way. | 07-28-2011 |
20110061359 | Characterization of Fancy Yarn - According to the method for characterizing fancy yarn, at least one characteristic of the fancy yarn is scanned along the longitudinal direction of the fancy yarn. Values of the scanning are evaluated and the results of the evaluation are outputted. The results of the evaluation are the fancy yarn parameters such as base yarn mass, base yarn diameter, stub distance, mass increase (ΔM) of a stub, slub diameter increase, stub diameter, slub length (L | 03-17-2011 |
20110061358 | Characterization of Fancy Yarn - According to the method for characterizing fancy yarn, at least one characteristic of the fancy yarn is scanned along the longitudinal direction of the fancy yarn. Values of the scanning are evaluated and the results of the evaluation are outputted. The results of the evaluation are the fancy yarn parameters such as base yarn mass, base yarn diameter, slub distance, mass increase (ΔM) of a slub, slub diameter increase, slub diameter, slub length (L | 03-17-2011 |
20100328650 | Fiber Property Measurement - A fiber instrument for measuring properties of a fiber sample, the fiber instrument having a surface for receiving the fiber sample, a hand for pressing the fiber sample against the surface, an illumination source for selectively illuminating the fiber sample with more than one peak wavelength, where each of the peak wavelengths is independently controllable as to an applied intensity of the peak wavelength, a sensor for capturing images of the fiber sample while it is illuminated, and a controller for controlling at least the sensor and the illumination source. By providing multiple peak wavelengths of illumination that are each independently controllable as to illumination intensity, the fiber instrument as described herein is better able to detect both foreign material within the fiber sample, and color gradations of the fiber sample. | 12-30-2010 |
20100050763 | Micronaire Measurement - A method of determining a testing volume for a micronaire measurement by containing a fiber sample within a micronaire chamber having a length and at least one movable end wall. A flow is initiated along the length of the micronaire chamber. The fiber sample is compressed within the micronaire chamber by advancing the movable end wall, and the advancement of the movable end wall is stopped when at least one property of the flow attains a set point. The position of the movable end wall defines the testing volume. In this manner, there is provided a convenient method of setting a testing volume and acquiring the information needed to take a micronaire measurement. | 03-04-2010 |
20080288101 | Characterization of Fancy Yarn - According to the method for characterizing fancy yarn, at least one characteristic of the fancy yarn is scanned along the longitudinal direction of the fancy yarn. Values of the scanning are evaluated and the results of the evaluation are outputted. The results of the evaluation are the fancy yarn parameters such as base yarn mass, base yarn diameter, slub distance, mass increase of a slub, slub diameter increase, slub diameter, slub length and/or slub total mass. On evaluation, a measurement curve is produced from the values of the scanning, and an area (A(x)) between the measurement curve and a previously determined base yarn mass is computed. A permanent increase in the course of the area (A(x)) is used as a criterion for the presence of a slub. Slubs may be differentiated from yarn imperfections in a reliable manner by way of the area (A(x)). | 11-20-2008 |
20080276593 | Characterization of Fancy Yarn - According to the method for characterizing fancy yarn, at least one characteristic of the fancy yarn is scanned along the longitudinal direction of the fancy yarn. Values of the scanning are evaluated and the results of the evaluation are outputted. The results of the evaluation are the fancy yarn parameters such as base yarn mass, base yarn diameter, slub distance, mass increase (ΔM) of a slub, slub diameter increase, slub diameter, slub length (L | 11-13-2008 |
20080257010 | Standard Moisture Correction - A method for standardizing a reading taken on a fiber sample, including the steps of measuring a moisture content of the fiber sample, taking the reading on the fiber sample, and correcting the reading to a standardized reading that adjusts for a difference between the reading at the measured moisture content of the fiber sample and a standardized reading at about 7.5% moisture content. | 10-23-2008 |
20080236252 | Micronaire Measurement - A method of determining a testing volume for a micronaire measurement by containing a fiber sample within a micronaire chamber having a length and at least one movable end wall. A flow is initiated along the length of the micronaire chamber. The fiber sample is compressed within the micronaire chamber by advancing the movable end wall, and the advancement of the movable end wall is stopped when at least one property of the flow attains a set point. The position of the movable end wall defines the testing volume. In this manner, there is provided a convenient method of setting a testing volume and acquiring the information needed to take a micronaire measurement. | 10-02-2008 |
20080230728 | Characterization of Fancy Yarn - According to the method for characterizing fancy yarn, at least one characteristic of the fancy yarn is scanned along the longitudinal direction of the fancy yarn. Values of the scanning are evaluated and the results of the evaluation are outputted. The results of the evaluation are the fancy yarn parameters such as base yarn mass, base yarn diameter, slub distance, mass increase (ΔM) of a slub, slub diameter increase, slub diameter, slub length (L | 09-25-2008 |