Patents Assigned to Mahlo GmbH & Co. KG
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Patent number: 7242747Abstract: A method for determining a weight per unit area and/or a chemical composition of a conveyed material sample. From the analysis of a portion of an incident ionizing radiation, in particular an X-radiation, scattered from a material sample, a detector signal corresponding to the gsm substance and/or the chemical composition of the material sample is generated and used for determining the weight per unit area and/or the chemical composition of the material sample. A device for determining a weight per unit area and/or a chemical composition of a material sample has a compact measurement head arranged unilaterally with respect to the material sample. This measurement head includes an X-radiation source and a detector arrangement integrated into the measurement head of at least one X-ray detector connected to a voltage supply and an evaluation unit.Type: GrantFiled: October 20, 2004Date of Patent: July 10, 2007Assignee: Mahlo GmbH & Co. KGInventor: Ludwig Zerle
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Publication number: 20070115462Abstract: The invention relates to a method for inspecting quality criteria of flat textile structures embodied in a multi-layer form according to a contour, in particular woven, stitched, knitted, sewn or non-woven finished structures, preferably provided with cut areas or holes, separated or forming a material web, in particular when said structures are used for producing airbags. The inventive method is carried out using image-forming inspection means, in particular optical inspection means, preferably a linear array camera or CCD array camera, whereby a relative motion is produced between the structures to be inspected and the camera, and the structure is arranged at least by area at a defined distance from the image-forming inspection means, preferably on the substantially flat surface of a control table or inspection line. The texture of the structure is analyzed according to a segmentation method. Characteristics such as center of gravity, area, main axes, etc.Type: ApplicationFiled: March 26, 2004Publication date: May 24, 2007Applicants: Mahlo GmbH & Co., KG, BST Berger Safety Textiles GmbH & Co. KGInventor: Robert DAUL
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Publication number: 20050163282Abstract: The invention relates to a method for determining a gsm substance and/or a chemical composition of a conveyed material sample. From the analysis of a portion of an incident ionizing radiation, in particular an X-radiation, scattered from a material sample, a detector signal corresponding to the gsm substance and/or the chemical composition of the material sample is generated and used for determining the gsm substance and/or the chemical composition of the material sample. A device for determining a gsm substance and/or a chemical composition of a material sample has a compact measurement head (10) arranged unilaterally with respect to the material sample. This measurement head includes an X-radiation source (20) and a detector arrangement (30) integrated into the measurement head of at least one X-ray detector connected to a voltage supply and an evaluation unit.Type: ApplicationFiled: October 20, 2004Publication date: July 28, 2005Applicant: Mahlo GmbH & Co. KGInventor: Ludwig Zerle
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Patent number: 6817756Abstract: The invention relates to a method and an arrangement for measuring the ambient temperature in barely accessible or hazardous locations, in particular in the proximity of textile, paper or similar webs or other work pieces or materials being conveyed, of which at least one property is determined by means of a methodical system, which requires at least the direct ambient temperature as a comparative or reference value. According to the invention, a pyrometric radiation meter known per se is used. A thermal radiator in thermal balance with the environment is positioned directly proximate to the material web. Detection of the heat radiation spectrum and hence an indirect determination of the ambient temperature is carried out by means of the pyrometer via said thermal radiator.Type: GrantFiled: February 21, 2003Date of Patent: November 16, 2004Assignee: Mahlo GmbH & Co.KGInventors: Klaus Raum, Hans Fella
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Publication number: 20040013159Abstract: The invention relates to a method and an arrangement for measuring the ambient temperature in barely accessible or hazardous locations, in particular in the proximity of textile, paper or similar webs or other work pieces or materials being conveyed, of which at least one property is determined by means of a methodical system, which requires at least the direct ambient temperature as a comparative or reference value. According to the invention, a pyrometric radiation meter known per se is used. A thermal radiator in thermal balance with the environment is positioned directly proximate to the material web. Detection of the heat radiation spectrum and hence an indirect determination of the ambient temperature is carried out by means of the pyrometer via said thermal radiator.Type: ApplicationFiled: February 21, 2003Publication date: January 22, 2004Applicant: Mahlo GmbH & Co. KGInventors: Klaus Raum, Hans Fella
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Patent number: 6521906Abstract: 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, by means of a lighting arrangement (100A), a photoelectric sensor arrangement (107) with a plurality of sensor elements and an evaluation device (115) connected to the sensor arrangement for processing the values sampled from the sensor fields in order to obtain the distortion angle, wherein an arrangement of sensor elements with a plurality of rows and columns is used in which individual elements can be accessed as desired, and in a sequence of scanning steps different predetermined groups of sensor elements are interrogated, each of which is situated substantially on a sensor-field line, the groups involved in each scanning step being determined such that the scanned sensor-field lines are positioned at progressively altered angles with respect to the transType: GrantFiled: January 30, 2001Date of Patent: February 18, 2003Assignee: Mahlo GmbH & Co. KGInventors: Karl-Heinz Beying, Gunter Abelen, Helmut Klaehsen
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Patent number: 5416593Abstract: To order to determine a distortion angle in a textile material fed in a specific feeding direction, the textile material is monitored by means of a first detection means, the output signal of which depends on an angular position of said means with respect to the feeding direction and to the distortion angle. This first output signal is filtered so that signal components that are at least statistically independent of the distortion angle are filtered out. The filtering means used comprise a band-pass filter which is adjustable with respect to its center band-pass frequency, its bandwidth and/or the shape of its filter-curve shape by means of a second output signal from a second detection means. The second output signal is dependent on the frequency characteristic of those signal components in the first output signal that are at least statistically dependent on the distortion angle.Type: GrantFiled: March 26, 1992Date of Patent: May 16, 1995Assignee: Mahlo, GmbH & Co. KGInventor: Michel Vercruysse
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Patent number: 5382894Abstract: When textile materials are treated with wet processes, attempts are usually made to detect organic and inorganic contaminant substances retained in the cloth either by allowing conductivity-measuring or other electrodes placed on the cloth to travel with it during transport, or by analyzing the fluid squeezed out of the cloth. The data obtained by these methods are extremely unreliable and subject to interfering factors. As a substantial improvement, it is proposed that the loading of the cloth with extraneous substances be measured in the interior of the cloth, between or at its surfaces. This can be achieved by applying and collecting solvent to extract samples of the extraneous substances from the cloth, section by section, and measuring the extraneous substances in the collected solvent quantitatively and/or qualitatively.Type: GrantFiled: August 27, 1992Date of Patent: January 17, 1995Assignee: Mahlo GmbH & Co. KGInventors: Hellmut Beckstein, Hans Bors
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Patent number: 4987663Abstract: A process and apparatus for straightening weft yarns in fabrics in which a continuous fabric web is stretched over a defined longitudinal section with a force increasing in the direction of movement, essentially in the weft direction, between two marginal tensioning drums movable independently of each other in a manner such that the different forces that appear when a diagonal distortion occurs, can be compensated in the direction of movement on the tensioning drums so as to remove the distortion.Type: GrantFiled: November 8, 1989Date of Patent: January 29, 1991Assignee: Mahlo GmbH & Co. KGInventor: Helmut Epple
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Patent number: 4899425Abstract: A process and apparatus for straightening weft yarns in fabrics in which a continuous fabric web is stretched over a defined longitudinal section with a force increasing in the direction of movement, essentially in the weft direction, between two marginal tensioning drums movable independently of each other in a manner such that the different forces that appear when a diagonal distortion occurs, can be compensated in the direction of movement on the tensioning means so as to remove the distortion, the tensioning means being driven to prevent the frictional forces that necessarily appear from being overcome by take-off forces in the fabric web so that no curved distortions occur.Type: GrantFiled: October 13, 1987Date of Patent: February 13, 1990Assignee: Mahlo GmbH & Co. Kg.Inventor: Helmut Epple
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Patent number: 4890924Abstract: The invention is a process and an apparatus for measuring the weft threads and draft angle for a continuously moving textile sheet. At least one long narrow section of the sheet is monitored by transmitted or reflected illumination. The long narrow section has a small width and long length in comparison with the thickness of the weft threads. The longitudinal axis of the section has a defined, constant angle in relation to the transport direction. The illuminated section is monitored by a sensor array. The brightness values within the section are divided in two classes (bright, dark), and those sensors within the field in which brightness values are the same, and that there be determined either the number of (total) length of the sensors within the same class or speed at which the sensors of one class move in the section, and that the draft angle of the weft thread is determined therefrom.Type: GrantFiled: May 5, 1988Date of Patent: January 2, 1990Assignee: Mahlo GmbH & Co. KG.Inventor: Hellmut Beckstein
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Patent number: 4786177Abstract: A system for measuring the weft or mesh serial position in textiles, in which the angular position of the weft/mesh series is measured for determining the angle of distortion passing over a partial amount of the length thereof, includes an illumination measuring system which measures values of light from a light source either passing through or reflected from the textile fabric to be tested, in a substantially linear range, and an adjusting assembly which reciprocally and oscillatingly rotates the linear range about a central angle to adjust the linear range at an angle relative to the textile fabric; rotating or measuring the reflection or transmission values in several discrete equidistant angular units; a group of memories for storing the measured values corresponding to at least a few angular units; and a digital unit connected to the memories for comparing the stored values in calculating a distortion angle in response to such comparison.Type: GrantFiled: September 30, 1987Date of Patent: November 22, 1988Assignee: Mahlo GmbH & Co. KGInventors: Hellmut Beckstein, Siegfried Wild
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Patent number: 4696185Abstract: For controlling the dye receptivity or color absorption capacity of textile goods by means of air or sound, a web is continually guided between transmitter and receiver, and measured values determined at various locations of the web are compared with each other.Type: GrantFiled: April 25, 1984Date of Patent: September 29, 1987Assignee: Mahlo GmbH +Co. KG.Inventor: Hellmut Beckstein
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Patent number: 4676651Abstract: For controlling the dye receptivity or color absorption capacity of a running web of textile goods, a monitoring method by means of electromagnetic waves penetrating through the web of goods is used (FIG. 2).Type: GrantFiled: April 25, 1984Date of Patent: June 30, 1987Assignee: Mahlo GmbH+Co. KG.Inventor: Hellmut Beckstein
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Patent number: 4255050Abstract: The deviation of the weft threads in a fabric is ascertained to show the extent and angle of the deviation relative to a line extending at a right angle relative to the edge of a moving fabric web. For this purpose a sensor head or several sensor heads are movable across the web. Separate signals are produced for the left and right half of the web relative to a longitudinal center line of the web. A comparing unit compares the separate signals for forming a control value or signal.Type: GrantFiled: October 25, 1979Date of Patent: March 10, 1981Assignee: Mahlo GmbH & Co. KGInventors: Hellmut Beckstein, Guenter Schellenberger