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| Number | Title | Issue Date |
| 7918124 | Non-contact shape sensor and device for moving sheet material A non-contact shape sensor and shape sensing device employing a plurality of such sensors. A non-contact shape sensor of the present invention may include a fluid-emitting sensor head that is biased toward a surface of a moving strip of material by a linear actuator... | 04/05/2011 |
| 7369255 | Apparatus and method for capacitive measurement of materials Method for measuring thicknesses of a film, a foil or a material layer with a measuring head which is spaced away from the film and with which a capacitive thickness measurement is performed, in which an optical distance measurement is performed with a distance meas... | 05/06/2008 |
| 7255000 | Method and an arrangement for controlling position and/or force of an elongated rolling device In paper and board machines the position of a rolling device relative to another rolling device and/or the force exerted by the rolling device on the other rolling device or any variable acting on these is measured, and the value of the measured variable is compared... | 08/14/2007 |
| 7231277 | Surface shape determining device for a machining apparatus and surface shape determining method In a state of separating a front end face of an air injecting nozzle 23 from a worked work W by a predetermined interval h, the air injecting nozzle 23 is moved at a constant speed in an X axis direction, injects air from an injecting hole 27... | 06/12/2007 |
| 7207208 | Blown installation of optical fibres and method and apparatus for determining the length of a passage along which an optical fibre is to be blown An apparatus (12) is provided for use in determining a length at least representative of the length of a tube that defines a passage in an optical fibre cable (10) along which an optical fibre unit can be installed by blowing. The apparatus (12)... | 04/24/2007 |
| 7204126 | Blown installation of optical fibres and method and apparatus for determining the length of a passage along which an optical fibre is to be blown A method of determining a length Ld at least representative of the length of a passage along which an optical unit or cable is to be installed by blowing, comprises the steps of flowing a pressurised gas into the passage at a substantially constant pressu... | 04/17/2007 |
| 7185537 | Nip and loading analysis system A nip characterization system which has as inputs the pressure applied to the nip by the hydraulic loading devices, and loads applied at the end bearings and/or the loads applied to the roll support beam, and in addition directly measures nip load, has more than suf... | 03/06/2007 |
| 7146279 | Measuring device A device for measuring at least one property of a material web, in particular a paper or board web, includes movable measuring probes provided on both sides of the web, which can be pressed against the web with preferably at least substantially equal force, forming ... | 12/05/2006 |
| 7140233 | Immersion lithography proximity sensor having a nozzle shroud with flow curtain The present invention is directed to an immersion lithography proximity sensor having a nozzle shroud with a flow curtain. The immersion lithography proximity sensor includes a shroud that affixes to the nozzle. A plenum is located inside the shroud that holds a shr... | 11/28/2006 |
| 7134321 | Fluid gauge proximity sensor and method of operating same using a modulated fluid flow A system and method that use a fluid gauge proximity sensor. A source of modulated unidirectional or alternating fluid flow travels along at least one path having a nozzle and a flow or pressure sensor. The fluid exists at a gap between the nozzle and a target. The ... | 11/14/2006 |
| 7124624 | High-resolution gas gauge proximity sensor An apparatus and method for precisely detecting very small distances between a measurement probe and a surface, and more particularly to a proximity sensor using a constant gas flow and sensing a mass flow rate within a pneumatic bridge to detect very small distance... | 10/24/2006 |
| 7032445 | System and method for automatically measuring and tracking a feature of material used during a manufacturing process A feature of paper used in the production of a cigarette and the effect of the feature on the finished cigarette is automatically measured at specific locations along the paper, and data related to the measurement is stored in a database file. Indicia including the ... | 04/25/2006 |
| 7021119 | Liquid flow proximity sensor for use in immersion lithography An apparatus and method for precisely detecting very small distances between a measurement probe and a surface, and more particularly to a proximity sensor using a constant liquid flow and sensing a liquid mass flow rate within a bridge to detect very small distance... | 04/04/2006 |
| 7021120 | High resolution gas gauge proximity sensor In a gas gauge, effects due to changes in the local environment are reduced by causing a measurement nozzle and a reference nozzle to react as if they were co-located, or located at approximately the same position. This is achieved by venting the reference nozzle in... | 04/04/2006 |
| 7017390 | Proximity sensor nozzle shroud with flow curtain The present invention is directed to an apparatus for reducing the impact of cross winds on gas flow emitted from a nozzle. The apparatus includes a shroud that affixes to the nozzle. A plenum is located inside the shroud that holds a shroud gas, which is fed into t... | 03/28/2006 |
| 7011307 | Paper sheet detection apparatus A paper sheet detection apparatus comprising a conveying belt which conveys a paper sheet along a conveying surface, a detection sensor which is provided opposite to the conveying surface and detects a paper sheet conveyed by the conveying belt, a sensor guide which... | 03/14/2006 |
| 7010958 | High-resolution gas gauge proximity sensor An apparatus and method for precisely detecting very small distances between a measurement probe and a surface, and more particularly to a proximity sensor using a constant gas flow and sensing a mass flow rate within a pneumatic bridge to detect very small distance... | 03/14/2006 |
| 6998021 | Arrangement for paper machine, and blow box In a paper machine which comprises process elements and a measuring beam, the measuring beam is arranged at least at one paper machine process element so that a measuring device for measuring quality properties of a paper web is arrangeable in the measuring beam. Th... | 02/14/2006 |
| 6978658 | Proximity sensor with self compensation for mechanism instability A retractable proximity sensor system with a self-compensating mechanism to reduce the impact of mechanical instability on the precision of a proximity sensor is disclosed. The retractable proximity sensor system includes a retractable proximity sensor and a proximi... | 12/27/2005 |
| 6950717 | System and method for controlling width and stitch density of a fabric web A system for controlling the width and stitch density of a moving fabric web compacted by a fabric compaction system. The width control subsystem comprises a first camera which captures an image of a moving fabric web, and a first controller, wherein the first contr... | 09/27/2005 |
| 6895811 | Detection of small holes in laminates Laminates are tested for the presence of small holes. For example, when a laminate is moving through a processing machine in a direction along a length of the laminate, a vacuum is applied to a surface of the laminate and the surface of the laminate is inspected to ... | 05/24/2005 |
| 6769297 | Method and equipment for measuring tension of moving web A method and equipment for measuring the tension of a moving web. The tension of the moving web is measured by means of a measuring element provided with a guide surface which the moving web is guided to pass such that the web forms an air cushion of the air it carr... | 08/03/2004 |
| 6743338 | Method and measuring device for measuring at least one property of moving web 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 meas... | 06/01/2004 |
| 6662630 | Method for measuring slide bearing pressure in a deflection-compensated roll with a fixed shell A deflection compensated roll has a stationary support structure and a shell rotatably arranged around it by means of slide bearings. The shell is additionally supported on the support structure with hydraulic loading devices by which the axial profile of... | 12/16/2003 |
| 6604418 | Liquid-level detection method and device thereof An ALC circuit is turned on (S1), a nozzle is shifted to a sampling position (S2), and after the ALC circuit has been turned off (S3), the nozzle is allowed to start discharging air from its tip (S4). While the nozzle is being lowered, the inner pressure ... | 08/12/2003 |
| 6494081 | Method of measuring properties of paper, and arrangement in a paper measuring apparatus A measuring probe in a paper measuring apparatus is kept at a distance from the surface of the paper by feeding medium between the paper and a surface of the measuring probe through a feed hole in the surface of the measuring probe. The pressure of the su... | 12/17/2002 |
| 6352615 | Method and equipment in a paper/board machine for regulation of the difference of draw The invention concerns an equipment in a paper/board machine for regulation of the difference of draw. In the solution in accordance with the invention, the difference of draw in the web is regulated on the basis of the measured tension of the web. Prefer... | 03/05/2002 |
| 6264793 | Method and apparatus for measuring caliper of paper The invention relates to a method and apparatus for measuring the caliper of paper substantially continuously during papermaking. A sensor (3a, 3b) is arranged above and/or under the paper (2), the sensor (3a, 3b) measuring the caliper of the paper (2) at... | 07/24/2001 |
| 6119506 | Apparatus and method for determining transport properties of porous materials An apparatus and method for measuring the mass transport properties of pos materials. The apparatus is a permeation or diffusion cell that comprises two outer portions with longitudinal channels therein, two clamping plates with openings therein, two flo... | 09/19/2000 |
| 6032517 | Device and process for measuring the rigidity of flat mail An arrangement for measuring the rigidity of flat items with the aid of a conveying path in which the items are transported separately by means of conveying belts, wherein the conveying path has a straight section and a curved section and wherein the conv... | 03/07/2000 |
| 6029502 | Positioning system with pressure measurement in the layer of air between the measuring head and the material being measured The object of positioning a measurement probe (5) very close to but not in contact with moving measured material (9) is solved in accordance with the invention in that air is blown through a nozzle in the measurement probe between the probe and the materi... | 02/29/2000 |
| 5983707 | Rotor for a shapemeter A rotor for a shapemeter is shown in the figure and comprises an inner annulus (6) connected to and spaced from a coaxial outer annulus (7) by means of rubber o-rings (10). The air gap formed between the annuli (6, 7) and the rubber o-rings (10) provide a... | 11/16/1999 |
| 5725737 | Apparatus for the detection of holes and plugged spots The invention relates to an apparatus for detecting plugged sites and holes and for measuring of the water permeability properties of pervious machine fabrics. Plugged sites in a permeable fabric are detected by sensing water pressure pulses occurring in ... | 03/10/1998 |
| 5697247 | Apparatus for measuring the thickness and/or irregularity of slivers The invention relates to a device for measuring the thickness and/or irregularity of slivers, with a compacting part (2) compacting the sliver and with a measuring part which has a gutter-like guide conduit (8) for the compacted sliver and a sensing membe... | 12/16/1997 |
| 5501100 | Device for measuring the mass of fiber slivers A device for measuring the mass of fiber slivers contains an entry part for the fiber sliver to be measured and a measuring part adjoining the entry part. Arranged on the measuring part are two measuring members working on different measurement principles... | 03/26/1996 |
| 5412976 | Apparatus for determining the air permeability of a cloth web For continuous measurement of the air permeability of a moving or stationary cloth web, the latter is guided over a measuring orifice which opens at the end of a measuring tube through a convexly curved outer surface of a measuring head. This convexly cur... | 05/09/1995 |
| 5351374 | Method and an apparatus for the continuous crimping of thermoplastic threads Threads made from thermoplastic materials are textured, in that they are heated by a delivery medium in a delivery channel and conveyed through an orifice into a stuffer box where they are stuffed to form a plug. In order to maintain plug formation consta... | 10/04/1994 |
| 5317898 | Method and apparatus for detecting thickness variation in sheet material The detection of thickness variations in sheet material, more specifically the presence or absence of labels on a moving web, is accomplished by providing two spaced apart nozzles, an entry for pressurized fluid, first and second conduits to connect the e... | 06/07/1994 |
| 5308010 | Method for eliminating imperfections in a wound web roll In the winding of webs of plastic films on cores, defects in the web caused by hard streaks in the wound roll are avoided or reduced by a new method of control. In this method, measurements are made of elastic properties of the web and of the average widt... | 05/03/1994 |
| 5298073 | Two sensor for determining spacing between surfaces A method of and apparatus for determining the spacing between a ribbon of hot glass and a coater extending over the ribbon for forming a coating thereon by chemical vapor deposition. Position sensors are affixed to the coater at selected positions thereal... | 03/29/1994 |
