Patents Assigned to Voith Paper Patent GmbH
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Patent number: 7294237Abstract: A belt press including a roll having an exterior surface and a permeable belt having a side in pressing contact over a portion of the exterior surface of the roll. The permeable belt having a tension of at least 30 KN/m applied thereto. The side of the permeable belt having an open area of at least approximately 25%, and a contact area of at least approximately 25%.Type: GrantFiled: January 30, 2004Date of Patent: November 13, 2007Assignee: Voith Paper Patent GmbHInventors: Jeffrey Herman, Thomas Thoröe Scherb, Luiz Carlos Silva
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Patent number: 7294239Abstract: An apparatus for dewatering a fiber web in a paper machine includes a heated drying surface, a permeable fabric carrying the fiber web, and a condensing region adjacent a portion of the permeable fabric on a side opposite the fiber web. The fiber web is interposed between and contacts each of the heated drying surface and the permeable fabric. The condensation region has: a) a temperature which is less than a temperature of the permeable fabric; and/or b) a pressure which is greater than an ambient pressure.Type: GrantFiled: January 30, 2004Date of Patent: November 13, 2007Assignee: Voith Paper Patent GmbHInventors: Stefan Lomic, Jeffrey Herman, Thomas Thoröe Scherb
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Patent number: 7294234Abstract: Process and apparatus for monitoring the condition of a rotating belt in a paper or cardboard machine. The process includes recording data related to a condition of the belt, and creating an at least two-dimensional image of the belt condition from the recorded condition data. The image depicts a condition characteristic in a machine travel direction and a condition characteristic in a machine crosswise direction. The instant abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.Type: GrantFiled: October 22, 2003Date of Patent: November 13, 2007Assignee: Voith Paper Patent GmbHInventors: Rudolf Münch, Wolfgang Ulfert
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Patent number: 7291249Abstract: An apparatus for the manufacture of a structured fiber web including an imprinting fabric, a first pressure field device, a second pressure field device and a drying cylinder. The fiber web is formed and carried on the imprinting fabric with an initial dry content of less than 35%. The first pressure field device applies a first pressure field to the imprinting fabric and the fiber web, thereby pressing the fiber web onto the imprinting fabric, thereby pre-imprinting the fiber web. The second pressure field device applies a second pressure field to the imprinting fabric in the fiber web, thereby again pressing the fiber web onto the imprinting fabric, drying the fiber web and fixing a three-dimensional surface structure in the fiber web. The drying cylinder has the fiber web delivered thereto by the imprinting fabric.Type: GrantFiled: December 18, 2003Date of Patent: November 6, 2007Assignee: Voith Paper Patent GmbHInventors: Thomas Thoröe-Scherb, Harald Schmidt-Hebbel, Jeffrey Herman
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Publication number: 20070251660Abstract: A dewatering fabric for an ATMOS system or a TAD machine that includes a caliper of between approximately 0.1 mm and approximately 15 mm, a permeability value of between approximately 1 cfm and approximately 500 cfm, an overall density of between approximately 0.2 g/cm3 and approximately 1.10 g/cm3, and a weight of between approximately 100 g/m2 and approximately 3000 g/m2. A belt press for a paper machine can utilize the dewatering fabric. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in anyway.Type: ApplicationFiled: April 28, 2006Publication date: November 1, 2007Applicant: Voith Paper Patent GmbHInventors: Hubert WALKENHAUS, Robert CROOK, Calvin HAYDEN
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Publication number: 20070251659Abstract: A forming fabric for an ATMOS system or a TAD machine. The forming fabric includes a permeability value of between approximately 100 cfm and approximately 1200 cfm, a paper surface contact area of between approximately 0.5% and approximately 90% when not under pressure and tension, and an open area of between approximately 1.0% and approximately 90%. A belt press for a paper machine can utilize the forming fabric. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.Type: ApplicationFiled: April 28, 2006Publication date: November 1, 2007Applicant: VOITH PAPER PATENT GMBHInventors: Ademar FERNANDES, Martin RINGER, Carl WARREN
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Patent number: 7287974Abstract: A calender arrangement for calendering a material web, in particular a paper web, having a shoe roll and a mating roll, between which an extended nip is formed, through which the material web can be guided. The shoe roll includes a revolving shell, which is fixed to two rotatably mounted terminating elements arranged at the ends and can be loaded in the direction of the mating roll via a press shoe matched to the outside of the mating roll. The shell includes a radially inner base layer and an adjacent, radially outer functional layer. The base layer includes a resilient matrix material reinforced by embedded fibers, and the functional layer includes a matrix material with a lower fiber content than the base layer.Type: GrantFiled: September 12, 2005Date of Patent: October 30, 2007Assignee: Voith Paper Patent GmbHInventors: Jörg Rheims, Lothar Zimmerman, Eugen Schnyder
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Patent number: 7279043Abstract: An applicator device and method where on the one hand adherence of particles in the dispensing area of the applicator nozzle, and on the other hand a thermal deflection of applicator device components can be prevented, or at least minimized. At least one thermal control channel through which a fluid flows is integrated into at least one of the two nozzle lips of the applicator device. Water or air can be used as temperature controlling fluids.Type: GrantFiled: January 18, 2005Date of Patent: October 9, 2007Assignee: Voith Paper Patent GmbHInventors: Eckart Krägeloh, Franz Fischer, Philipp Speidel, Christoph Henninger
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Patent number: 7278603Abstract: A winding apparatus for transferring a web from a carrier drum to a spool. Pressure between the spool and the carrier drum is higher in the area of the feed strip of the web by applying a higher contact force, or by orienting the spool and drum at an angle to one another.Type: GrantFiled: July 15, 2003Date of Patent: October 9, 2007Assignee: Voith Paper Patent GmbHInventors: Wolfgang Drefs, Ewald Wetschenbacher, Zygmund Madrzak, Jorg Maurer
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Patent number: 7249491Abstract: An apparatus for measuring the permeability of a circulating band, in particular of a dewatering band in a papermaking machine, having a nozzle from which a measuring fluid flows onto the band. In order to avoid undesired lifting of the nozzle off the band due to pressure peaks, the apparatus according to the present invention has a nozzle which can be pressed onto the circulating band with a constant contact pressure.Type: GrantFiled: September 16, 2004Date of Patent: July 31, 2007Assignee: Voith Paper Patent GmbHInventors: Thomas Ischdonat, Ralf Pfifferling, Rudolf Muench, Michael Sollinger, Wolfgang Ulfert
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Publication number: 20070170610Abstract: A method for the production of a fabric for industrial use comprising extruding polymer material onto a carrier structure to produce a patterned design on the carrier structure, wherein a cross-sectional profile of the extruded polymer material is substantially convex. An apparatus for carrying out the method comprising a polymer extrusion apparatus structured and arranged to move in three mutually perpendicular directions. A fabric comprising a carrier structure and a patterned design comprising extruded polymer material arranged on the carrier structure, wherein the extruded polymer material is arranged to form a substantially convex cross section on the carrier structure. The instant abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.Type: ApplicationFiled: February 14, 2006Publication date: July 26, 2007Applicant: VOITH PAPER PATENT GMBHInventors: Justin Payne, David Ponton, Alister Rigby
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Patent number: 7247206Abstract: A device (10) for the direct or indirect application of liquid or pasty application medium (16) to one or both sides of a material web (20), in particular of paper or board, comprises an applicator unit (12) which discharges the application medium (16) onto the material web (20) in the form of a free application medium jet (18). In this case, in the region of the applicator unit (12) there is provided a device (30) for producing an electric field, which exerts on the application medium jet (18) moving from the applicator unit (12) to the material web (20) a force which assists its movement. Additionally or alternatively, edge guiding elements can be provided, which guide the lateral edges of the application medium curtain (18) at least on part of its movement under the force of gravity.Type: GrantFiled: March 17, 2004Date of Patent: July 24, 2007Assignee: Voith Paper Patent, GmbHInventors: Méndez-Gallon Benjamin, Ueberschär Manfred
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Publication number: 20070144432Abstract: A device for the application of at least two liquid to pasty application media to one or both sides of a moving surface, having a curtain applicator for applying the application media. The curtain applicator discharges the application media onto the moving surface as curtains moving substantially under the force of gravity, and the moving surface being one of a surface of a material web and a surface of a transfer element, which transfers the application media to the surface of the material web. The device includes a collecting device for the separate collection of each application medium. The collecting device being positionable between the curtain applicator and the material web. The curtain applicator and the collecting device being movable relative to each other.Type: ApplicationFiled: December 15, 2004Publication date: June 28, 2007Applicant: VOITH PAPER PATENT GMBHInventor: Manfred Ueberschar
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Publication number: 20070130768Abstract: Disclosed is a method for heating a roller that is used in the production and/or finishing of a web of material, particularly a paper web or paperboard web. According to said method, the heat required for heating the roller is generated at least in part inside the roller by combusting a fuel with air or oxygen at least in some regions inside the roller. Also disclosed is a corresponding heatable roller.Type: ApplicationFiled: January 21, 2005Publication date: June 14, 2007Applicant: VOITH PAPER PATENT GMBHInventor: Fabian Doeling
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Publication number: 20070103530Abstract: The invention relates to a suction or blowing cylinder of a machine which is used to produce and/or shape paper, cardboard, tissue or another fibrous material (2). Said cylinder comprises a rotatable, perforated cylinder covering (1) and at least one pressure area (4) which is connected to a lower pressure source or a high pressure source and is sealed in relation to the cylinder covering (1) with the aid of at least one sealing element (5, 6). The invention is characterised in that the sealing element (5, 6) is embodied in a flat-shaped manner and is arranged in the vicinity of the inner wall of the cylinder covering (1).Type: ApplicationFiled: November 9, 2004Publication date: May 10, 2007Applicant: VOITH PAPER PATENT GMBHInventors: Herbert Schrefl, Harald Graf-Mueller, Josef Kerschbaumer, Erwin Gutlederer, Herbert Weinberger, Franz Mueller, Thomas Hackl
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Patent number: 7214257Abstract: Plant and process for cleaning and degassing a fibrous suspension. The plant includes a plurality of hydrocyclones, in which each hydrocyclone includes an intake connection, an accepts connection, and a rejects connection and at least two supply lines for feeding liquids into the plurality of hydrocyclones. At least two accepts lines, coupled to the accepts connections of the plurality of hydrocyclones, are structured and arranged to combine liquids cleaned of contaminants in the plurality of hydrocyclones, and at least one accepts draining pipe coupled to the at least two accepts lines is structured and arranged to open directly into a further line downstream. The instant abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.Type: GrantFiled: May 5, 2004Date of Patent: May 8, 2007Assignee: Voith Paper Patent GmbHInventor: Wolfgang Mannes
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Publication number: 20070090209Abstract: The method is used for refining a paper fiber suspension (S). This is refined chiefly by compressive forces between two refining surfaces (1, 2) that lie on refiner tools pressed against one another, since the refiner tools in the refining zone do not move or move very little relative to one another. The refining surfaces (1, 2) are embodied to be porous so that they can temporarily absorb or discharge part of the water (W) of the paper fiber suspension (S). An arrangement with central refiner cylinder (3) and refiner rolls (4) arranged on the periphery is particularly suitable as a device for carrying out the method. The refining surfaces can be embodied cylindrically or they can be provided with a toothing.Type: ApplicationFiled: November 11, 2004Publication date: April 26, 2007Applicant: VOITH PAPER PATENT GMBHInventor: Hans Schnell
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Patent number: 7207356Abstract: A through-air dryer (TAD) fabric formed by interweaving of a warp yarn system with a weft yarn system. The TAD fabric has a paper side with a contact area between 20% and 30%. The warp yarn system includes flat warp yarns and/or the weft yarn system includes flat weft yarns which have not been subjected to a sanding process after weaving of the fabric and which have an aspect ratio of 1.15:1 to 1.35:1.Type: GrantFiled: May 18, 2005Date of Patent: April 24, 2007Assignee: Voith Paper Patent GmbHInventors: Sanjay Patel, Jeff Herman
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Publication number: 20070084761Abstract: A screening device for the wet screening of a paper fiber suspension comprising at least one screen plate having a plurality of screen openings, a support structure being detachably attachable to the screen plate, a rotor movable adjacent the screen plate and an outlet opening for a portion of the paper fiber suspension passing the screen openings The support structure of the device is characterized by an outer support ring and an inner support ring and at least one middle support element arranged radially between the inner and outer support rings to support the at least one screen plate. Elastic pre-stressing against the screen plate is generated, and as a result of the elastic pre-stressing, the screen plate exerts compressive forces on at least one radially intermediate support element and respectively exerts tensile forces both on the inner support ring and on the outer support ring.Type: ApplicationFiled: September 29, 2006Publication date: April 19, 2007Applicant: VOITH PAPER PATENT GMBHInventors: Wolfgang MUELLER, Roland REINHOLD, Gert GOTTSCHALK
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Publication number: 20070074838Abstract: The invention relates to a paper machine for the production of a paper, board, tissue or other fibrous web (2), comprising a press section (1) having at least one press nip and comprising an impingement dryer (13) arranged immediately after the press section. The invention is characterized in that the paper machine has an applicator (17) for applying a coating color in the manner of a curtain (21) or for the film application (26) of coating color or for spraying (31) coating color on.Type: ApplicationFiled: December 2, 2004Publication date: April 5, 2007Applicant: VOITH PAPER PATENT GMBHInventors: Hai-Van Nguyen, Ulrich Begemann, Joerg Reuter, Georg Kleiser