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Class 356/238.3 - Detection of foreign material (e.g., trash, splinters, contaminants, etc.)


Subclass of Class 356 - Optics: measuring and testing
Definition: Textile inspection designed specifically to detect the presence
No. of patents: 37
Last issue date: 03/23/2010


NumberTitleIssue Date
7684033Apparatus at a spinning preparatory plant for detecting foreign objects in fibre material
In an apparatus at a spinning preparatory plant for detecting foreign objects, for example, pieces of cloth, tapes, string, pieces of sheeting and the like, in fibre material, the fibre material is transportable in an air flow through a fibre transport duct or a fee...
03/23/2010
7424902In-process vision detection of flaw and FOD characteristics
An inspection system (9) includes an idler wheel (61) that is coupled to a fabrication system (8) and is in contact with a backing layer (65) of an applied material (64). A rotation sensor (63) monitors the idler wheel (6...
09/16/2008
7333202Yarn sensor
A yarn sensor for optically scanning a yarn (3), traveling longitudinally through a measurement gap (19), includes a light source (20) projecting a beam of light into the measurement gap (19), at least one receiver (23) for directl...
02/19/2008
7324201Yarn sensor
A yarn sensor for textile spinning and bobbin-winding machines for optically scanning a longitudinally traveling yarn (3) within a measurement gap (19), particularly for detecting extraneous fibers, includes a light source (20), a first receiver...
01/29/2008
7286220Test piece for optoelectronic image analysis systems
A test piece for an optoelectronic image analysis systems is disclosed. One embodiment has a planar substrate, on which a plurality of geometrical patterns of differing shapes and/or sizes are arranged in a durable, predetermined surface coverage. The geometrical pa...
10/23/2007
7173703Apparatus on a textile fibre processing machine for evaluating textile fibre material
In an apparatus for inspecting and evaluating fiber material, for example a sliver or fleece, an opto-electronic system, is provided across the width of a textile machine and scans the moving fiber material and converts the measured values into electronic signals. T...
02/06/2007
7142693Method of grading sample
Method of grading a sample. An input color image of the sample, such as a sample of raw cotton, is obtained by a scanning technique. This image is first analyzed by an image segmentation module and a binary image where pixels of a first characteristic are marked as ...
11/28/2006
6937758Method and apparatus for reproducing sepia-tone images
Reproducing sepia tone images. The image is scanned using conventional RGB light and added infrared wavelengths. Using L*a*b* color coordinate system, “L”-channel values are determined by the infrared channel only, and “a” and “b” channels are filled wit...
08/30/2005
6924892Apparatus and a method of inspecting pieces of cloth
A method and an apparatus for automatic inspection of flatly positioned pieces of cloth with a view to detecting impurities or other irregularities in pieces of cloth. The pieces of cloth are transported past a camera (10) that is, in cooperation with a digit...
08/02/2005
6912048Method and device for identifying foreign bodies in a textile material
In a method and a device for identifying foreign bodies in a base textile material, the base textile material is subjected to beams and the beams reflected on the base material are detected and converted into an electrical signal. In order to detect foreign bodies i...
06/28/2005
6870610Method and apparatus for detecting defects in a material in a liquid bath
A system and method for detecting defects in a material in a liquid bath, the system including a light that illuminates the material through the liquid bath, at least one camera with a view of the material through the liquid bath, and a digital processor in communic...
03/22/2005
6744498Method and device for the optical detection of foreign fibers and other impurities in a longitudinally traveling yarn
Yarn impurities are detectable by a method and device wherein a first diameterdependent signal is obtained in a first measurement of a linearly traveling yarn, the intensity of the light for a second measurement is set as a function of the first signal to compensate...
06/01/2004
6628817Inspection data analyzing system
The present invention provides data analysis stations respectively for a probing tester and an automatic particle inspection machine. And, in the data analysis station, the coordinates on which the disposition of the chips are described on a product basis...
09/30/2003
6529619Inspection data analyzing system
The present invention provides data analysis stations respectively for a probing tester and an automatic particle inspection machine. And in the data analysis station, the coordinates on which the disposition of the chips are described on a product basis ...
03/04/2003
6521906Method and apparatus for measuring the distortion angle of a strip of textile, wherein a sensor array scans at progressively altered angles
Method of measuring a distortion angle between the longitudinal extent of the weft threads or rows of stitches in a textile strip (T) that is being continuously transported in a transporting apparatus (M) and the perpendicular to the transport direction, ...
02/18/2003
6507393Surface cleaning and particle counting
A method and an apparatus for detecting removable particulates initially on a test surface or surface to be inspected. The removable particles are transferred to a portion of a tacky surface on a carrier by adhering and then removing the portion of the ta...
01/14/2003
6462820Operator-free fabric web inspection system
A moving fabric web vision inspection system. The apparatus includes at least two electronic cameras on one side of the moving fabric web for measuring the light intensity of a predetermined area of the moving fabric web. A high frequency, backlight, cont...
10/08/2002
6449035Method and apparatus for surface particle detection
A method and an apparatus are described for detecting particles on surfaces. Particles are transferred from the surface to be inspected onto a tacky sheet by applying the tacky sheet to the surface and then removing the tacky sheet from the surface. Parti...
09/10/2002
6330352Inspection data analyzing system
The present invention provides data analysis stations respectively for a probing tester and an automatic particle inspection machine. And, in the data analysis station, the coordinates on which the disposition of the chips are described on a product basis...
12/11/2001
6243166Process and device for recognition of foreign bodies in fibre of predominantly textile fibres
The invention relates to a method and a device for detecting impurities (F) in a fiber stream (1) of mainly textile fibers, wherein the fiber stream and at least one reference quantity (15) are artificially visually sensed. To enable even impurities which...
06/05/2001
6175408Apparatus for detecting foreign substance in strand-like textile material
An apparatus detects foreign substances in strand-like textile material, such as slivers or yarn, using a white-light LED. The color detection is effected over more than two color support points whereby the detection of foreign substances in the textile m...
01/16/2001
6088094On-line sliver monitor
A device for measuring properties of fiber in a sliver is constructed with a first and second curved aluminum guide piece that is coated with either Teflon or ceramic. The guides compress the sliver of fiber. A Xenon bulb provides light which passes throu...
07/11/2000
6040905Fiber color grading system
A fiber classing device having a sample window for viewing a fiber sample. A light source provides light that is directed toward and reflected by the fiber sample, producing reflected light. A photo sensitive detector is positioned to receive the reflecte...
03/21/2000
5929460High throughput nep measurement
Apparatus and methods for measuring the quantity and size distribution of nep-like entities in a fiber sample. An individualizer presents entities, such as fibers and neps, to a laterally elongated acceleration/deceleration gas flow nozzle having a latera...
07/27/1999
5692267Apparatus for recognizing impurities of fiber material during processing in a textile machine and method
A fiber processing apparatus includes a plurality of serially-arranged fiber processing components for forming and advancing a fiber web and for gathering the web into a sliver. Some of the components are spaced by a clearance from one another such that t...
12/02/1997
5598266Device for detecting defects removed from fibrous material using optical inspection
A device for detecting defects (2, 3) in fibrous materials (4, 22) includes members (16, 17) for squeezing the material against a film (1), a separating member (24) downstream of the squeezing members for separating the fibrous material from the film, and...
01/28/1997
5572319Stain detector apparatus and method
A stain detector is provided for detecting stains in a fabric which includes a housing having a fabric opening for receiving the fabric to be inspected and a viewing opening for inspecting the fabric; an incandescent lamp and a fluorescent lamp for projec...
11/05/1996
5539515Apparatus and methods for measurement and classification of trash in fiber samples
An apparatus and method for measuring characteristics of entities in a sample of textile material, including trash, provides a sample of textile material to a processor where entities are individualized and thereafter transported to a sensor system. Chara...
07/23/1996
5469253Apparatus and method for testing multiple characteristics of single textile sample with automatic feed
A testing apparatus includes a receiver for holding a plurality of textile samples and an automatic feed mechanism disposed adjacent to the receiver for selectively engaging and removing samples from the receiver and transporting them to a processor where...
11/21/1995
5430301Apparatus and methods for measurement and classification of generalized neplike entities in fiber samples
Method and Apparatus for measuring and classifying individual neplike entities in a textile fiber sample is disclosed. The apparatus includes a fiber sample processor which takes a supply of fiber samples, separates and individualizes the individual entit...
07/04/1995
5414520Process and device for detecting impurities in a textile test material
The test sample (G) is illuminated at at least two points (S 1, S2) and the reflection from the test sample (G) and also the diameter of the sample or the change therein are measured by receivers (E1, E2). The measurement signals thus obtained are linked ...
05/09/1995
5383017Apparatus and method for detecting contaminants in textile products independently of the diameter of the textile products
For the detection of the presence of contaminants in yarn a first optical sensor is used to measure the amount of light reflected from the yarn. The signal from this sensor not only depends on the presence of contaminants but also on the diameter of the y...
01/17/1995
5371584Apparatus for the detection of contaminants in an elongated textile product
For the detection of contaminants, a yarn or a thread is led through a zone of measurement, which is formed as a flat slit in an optically transparent body. This transparent body has outer surfaces for diffusely or non-diffusely reflecting light back into...
12/06/1994
5345515Method and apparatus for inspecting the cleanliness of top slibers
A method of inspecting cleanliness of top sliber. The method classifies detected defects into pillwise defects and vegetal defects by introducing roundness, slenderness, gradation, dispersion, area, shape, gradation ratio, and length discernment against i...
09/06/1994
5321496Apparatus for monitoring trash in a fiber sample
An apparatus for monitoring trash in a sample of trash particles and fibers includes scales for determining the weight of the sample which is transmitted to a computer. The sample is presented to a sensing volume and an optical sensor produces an output s...
06/14/1994
5130559Method and apparatus for recognizing particle impurities in textile fiber
A method of recognizing particle impurities in textile material includes the following steps: forming a thin fiber web; detecting each particle impurity by an electron-optical sensor; applying signals from the sensor to an image processing system; determi...
07/14/1992
4970402Apparatus for sensing characteristics of a traveling yarn with yarn guiding means
An apparatus for guiding traveling yarn through a slot in which characteristics of the yarn are sensed, includes a pair of members having surfaces engaging the traveling yarn. The surfaces of the members are spaced from the slot, in respective opposite di...
11/13/1990
 
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