Patents Assigned to Voith Sulzer Papiertechnik Patent GmbH
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Patent number: 7497399Abstract: Process and apparatus for winding a material web onto a reel spool to produce a wound reel. The process is performed in the apparatus and includes producing the material web, online smoothing of the produced material web, guiding the smoothed material web over a reel drum and through a nip formed between the reel drum and one of the reel spool and the wound reel, maintaining contact between the reel drum and the one of the reel spool and the wound reel, and reeling the smoothed material web while transversely moving at least one of the reel drum and the one of the reel spool and the wound reel relative to a web travel 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: December 2, 2002Date of Patent: March 3, 2009Assignee: Voith Sulzer Papiertechnik Patent GmbHInventor: Karl Josef Böck
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Patent number: 7332059Abstract: Process for the manufacture of a fiber material web that includes passing the fiber material web to be dewatered through a press nip together with a carrier band; and subjecting the fiber material web to be dewatered to a pressing pressure of at least 3.3 MPa in the press nip for a time duration of at most 3 ms. 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: April 26, 2004Date of Patent: February 19, 2008Assignee: Voith Sulzer Papiertechnik Patent GmbHInventors: Thomas Thoroe Scherb, Harald Schmidt-Hebbel
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Patent number: 7288168Abstract: Machine and process for the manufacture of a paper web, in particular, a tissue paper or hygienic paper web. At least one pressing gap or nip is formed between a shoe pressing unit and a Yankee drying cylinder, through which a water absorbent carrier band, a water-impermeable pressing band and the web are passed. The pressing gap length is greater than approximately 80 mm, with the maximum pressing pressure of less than or equal to approximately 2 MPa. 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: December 23, 2003Date of Patent: October 30, 2007Assignee: Voith Sulzer Papiertechnik Patent GmbHInventors: Thomas Thoroe Scherb, Harald Schmidt-Hebbel
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Patent number: 7005045Abstract: A belt for a material web producing machine and a process of producing the belt. The belt includes a plurality of long-chain strength supports arranged to form interstices and a filler at least partially filling the interstices. The process includes forming a sheet from a plurality of long-chain strength supports with the sheet including a plurality of interstices disposed between the long-chain strength supports, and filling at least a portion of the interstices with a filler.Type: GrantFiled: January 13, 2000Date of Patent: February 28, 2006Assignee: Voith Sulzer Papiertechnik Patent GmbHInventors: Günter Halmschlager, Walter Holzer
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Patent number: 6942761Abstract: Press device and method of using the same for treating a fibrous material web that includes a shoe press unit that includes a flexible press belt that revolves around a non-rotating carrier, a counter roll that includes a deflection compensation roll with a roll jacket revolving around a second non-rotating carrier, a third roll, a roll nip formed between the counter roll and the third roll, a press nip elongated in a web travel direction and formed between the shoe press unit and the counter roll, at least one first support element where the flexible press belt is supported on the non-rotating carrier by the at least one first support element in the region of the elongated press nip, at least one second support element where the roll jacket is supported on the second non-rotating carrier by the at least one second support element in the region of the elongated press nip.Type: GrantFiled: January 12, 1999Date of Patent: September 13, 2005Assignee: Voith Sulzer Papiertechnik Patent GmbHInventors: Hans Prinzing, Rainer Bentele
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Patent number: 6916405Abstract: Process and apparatus for drying a material web. The process includes guiding the material web to at least one heated area having a jacket surface of a cylinder having a diameter of between about 4-10 meters, setting the material web, having a dry content of between about 45-55%, onto the at least one heated area, maintaining the material web in uninterrupted contact with the at least one heated area at least until the material web achieves a firmness sufficient for detaching the material web from the heated area, and detaching the material web from the at least one heated area with a dry content of between about 55%-65%.Type: GrantFiled: September 30, 2002Date of Patent: July 12, 2005Assignee: Voith Sulzer Papiertechnik Patent GmbHInventors: Robert Wolf, Markus Oechsle, Wolfgang Mayer, Thomas Mack, Roland Mayer
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Patent number: 6896647Abstract: Elastic roller and process for producing elastic roller. The elastic roller includes a hard roller core and an elastic coating layer at an outer side of the hard roller core. The elastic coating layer includes an elastic matrix material and fillers imbedded in the matrix material, and at least a portion of the fillers include metallic fillers. The process includes combining at least one metallic filler into an elastic matrix material and applying the combined elastic matrix material and at least one metallic filler onto an outer side of the hard roller core to form an elastic coating layer.Type: GrantFiled: June 2, 2000Date of Patent: May 24, 2005Assignee: Voith Sulzer Papiertechnik Patent GmbHInventors: Jens Christian Kärger, Albert Maria Vodermayer
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Patent number: 6890408Abstract: Headbox for one of a paper and cardboard machine includes at least one material suspension supply running a width of the machine. At least one turbulence producer has at least one conduit through which a material suspension flows. At least one metered addition point is located in the conduit for introducing a fluid medium. A headbox nozzle is located downstream from the at least one turbulence producer for delivering the material suspension. A portion of a flow resistance located downstream of the metered addition point is at least approximately 50% of a total flow resistance of the at least one conduit.Type: GrantFiled: August 23, 2002Date of Patent: May 10, 2005Assignee: Voith Sulzer Papiertechnik Patent GmbHInventors: Wolfgang Ruf, Hans Loser, Klaus Lehleiter
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Patent number: 6854385Abstract: Roll for smoothing paper webs including a hard roll core and an elastic covering layer provided on an outside of the core. The elastic covering includes an elastic matrix material, and is structured to operate within a temperature range between approximately 25° C. and 150° C. The elastic covering is further structured to operate with a nip frequency of between about 0.3 Hz and 5 Hz, and to be regionally compressible and to operate with a surface compression amplitude of between about 15 ?m and 50 ?m. The covering is further structured for a total dissipated energy of less than approximately 0.9J/cm3.Type: GrantFiled: June 22, 2000Date of Patent: February 15, 2005Assignee: Die Voith Sulzer Papiertechnik Patent GmbHInventor: Albert Maria Vodermayer
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Publication number: 20040261967Abstract: Process for the manufacture of a fiber material web that includes passing the fiber material web to be dewatered through a press nip together with a carrier band; and subjecting the fiber material web to be dewatered to a pressing pressure of at least 3.3 MPa in the press nip for a time duration of at most 3 ms. 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: April 26, 2004Publication date: December 30, 2004Applicant: Voith Sulzer Papiertechnik Patent GmbHInventors: Thomas Thoroe Scherb, Harald Schmidt-Hebbel
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Publication number: 20040191416Abstract: Process for application of a coating medium on a traveling material web that is one of paper and cardboard, the coating medium including at least one of a pasty medium and a liquid medium, wherein the process includes forming a material web in a wet section of a machine for one of paper and cardboard and guiding the material web which is still wet with a traveling, endless, carrier belt during application of a coating medium. The application of the coating medium includes transferring the coating medium from a roll-coating mechanism to at least one transfer belt onto the still wet material web. The coating medium is transferred from a surface of the at least one transfer belt moving in a direction of travel of the material web. The at least one transfer belt is a traveling, endless, air-permeable transfer belt which is guided by rolls. 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: March 29, 2004Publication date: September 30, 2004Applicant: VOITH SULZER PAPIERTECHNIK PATENT GmbHInventors: Peter Gallina, Volker Schmidt-Rohr, Karl Stelner, Michael Trefz
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Publication number: 20040134632Abstract: Machine and process for the manufacture of a paper web, in particular, a tissue paper or hygienic paper web. At least one pressing gap or nip is formed between a shoe pressing unit and a Yankee drying cylinder, through which a water absorbent carrier band, a water-impermeable pressing band and the web are passed. The pressing gap length is greater than approximately 80 mm, with the maximum pressing pressure of less than or equal to approximately 2 MPa. 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: December 23, 2003Publication date: July 15, 2004Applicant: Voith Sulzer Papiertechnik Patent GmbHInventors: Thomas Thoroe Scherb, Harald Schmidt-Hebbel
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Patent number: 6749146Abstract: Process and apparatus for threading a material web onto a reel. The process includes guiding a leader strip of the material web over at least a part of a circumference of a support drum, guiding the leader strip through an effective region of a guide device toward a waste receptacle, widening the leader strip to a desired width of the material web, placing a reel against the support drum, thereby forming a nip, cutting the material web, and winding the material web onto the reel, thereby forming a wound roll. The apparatus includes a support drum adapted to be at least partially wound around by at least a leader strip of the material web, one of a reel and a wound roll positionable against said support drum to form a nip during a winding process, a waste receptacle positioned after the support drum in a web travel direction, and at least one guide device positioned between the support drum and the waste receptacle.Type: GrantFiled: March 23, 2000Date of Patent: June 15, 2004Assignee: Voith Sulzer Papiertechnik Patent GmbHInventors: Zygmunt Madrzak, Matthias Wohlfahrt
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Patent number: 6746574Abstract: Machine for the manufacture of a fiber material web that includes a shoe pressing unit, a cylinder including one of a drying and tissue cylinder, in which shoe pressing unit and the cylinder are arranged to form at least one press nip, and a water absorbent carrier band. A water-impermeable pressing band is provided, in which the water absorbent carrier band and the water-impermeable pressing band are guided through the at least one press nip, and the fiber material web is adapted to pass through the at least one press nip with the water absorbent carrier band and the water-impermeable pressing band. The at least one press nip has a length in a web travel direction of less than or equal to approximately 60 mm. A pressure profile which results over the press nip length has a maximum pressing pressure which is greater than or equal to approximately 3.3 Mpa.Type: GrantFiled: February 14, 2002Date of Patent: June 8, 2004Assignee: Voith Sulzer Papiertechnik Patent GmbHInventors: Thomas Thoroe Scherb, Harald Schmidt-Hebbel
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Patent number: 6743337Abstract: Process and apparatus for determining properties of a traveling material web. The process includes simultaneously illuminating a plurality of measuring points on the material web with electromagnetic radiation, and imaging, through at least one optical device, the plurality of measuring points on one detection surface of at least one detector. The device includes at least one radiation source for illuminating a plurality of measuring points on the material web, at least one detector having a detection surface, and at least one optical device for imaging of the measuring points on the detection surface of the at least one detector.Type: GrantFiled: March 20, 2000Date of Patent: June 1, 2004Assignee: Voith Sulzer Papiertechnik Patent GmbHInventor: Thomas Ischdonat
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Publication number: 20040089168Abstract: A unitary membrane for use in a pressing apparatus includes a pair of longitudinal edge portions and a semipermeable portion having a plurality of intercommunicating pores. The semipermeable portion is positioned between the pair of longitudinal edge portions. Wherein the unitary membrane includes a formed fabric and has a thickness less than about 0.1 inches. The semipermeable portion has a permeability greater than zero and less than about five CFM per square foot as measured by TAPPI test method TIP 0404-20. A method of making the unitary membrane includes the steps of providing a carrier fabric which is very permeable and forming a plurality of intercommunicating pores in the carrier fabric.Type: ApplicationFiled: November 4, 2003Publication date: May 13, 2004Applicant: Voith Sulzer Papiertechnik Patent GmbH.Inventor: David A. Beck
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Patent number: 6717675Abstract: A system and method for determining the orientation of fibers in a fibrous material web. The system includes at least one source of electromagnetic radiation disposed on one side of the fibrous material web, at least one sensor for sensing the electromagnetic radiation emitted by the at least one source disposed on another side of the fibrous material web, and at least one optical device disposed between the at least one source and the at least one sensor, wherein the electromagnetic radiation travels through the at least one optical device and the fibrous material web such that the at least one optical device influences a propagation of the electromagnetic radiation as a function of its polarization properties.Type: GrantFiled: March 24, 2000Date of Patent: April 6, 2004Assignee: Voith Sulzer Papiertechnik Patent GmbHInventor: Rudolf Münch
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Patent number: 6705562Abstract: Roll winding device, in particular for a reel cutter, with at least one support device, comprising at least one carrying roll disposed with its axis in the lateral direction in a machine frame, which has a column device disposed on each of the two axial ends of the carrying roll, the columns being connected to each other in the lateral direction by means of at least one cross bar. At least one cross bar is embodied as a sealing box which is disposed underneath a winding bed and has a high mechanical stability so that it considerably increases the rigidity of the frame.Type: GrantFiled: April 20, 1999Date of Patent: March 16, 2004Assignee: Voith Sulzer Papiertechnik Patent GmbHInventor: Dirk Cramer
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Patent number: 6705554Abstract: Rotor for a paper stock processing machine, an anti-wear element for protecting a leading front surface of a rotor blade, and a paper stock processing apparatus. The rotor includes at least one rotor blade having a leading front surface to be protected, and an anti-wear element comprising a base body and at least one wear-resistant surface. The anti-wear element is coupled to the leading front surface. The anti-wear element includes a base body with a back side, and at least one wear-resistant working surface. The back side is formed to correspond to a shape of, and to be coupled to, the leading front edge. The apparatus includes a tank, a screen, and a rotor rotatably coupled adjacent the screen. The rotor includes at least one rotor blade having a leading front surface, relative to a rotational direction of the rotor, and an anti-wear element coupled to the leading front edge. The anti-wear element includes a base body and a wear-resistant working surface.Type: GrantFiled: May 25, 2000Date of Patent: March 16, 2004Assignee: Voith Sulzer Papiertechnik Patent GmbHInventor: Gunther Kölle
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Patent number: 6701833Abstract: Calender and process of calendering a web in calender. The calender includes a frame, an upper roll, a lower roll, an intermediate roll arrangement that includes an intermediate roll that is fixed in the frame, and a load limiting device coupled to the intermediate roll. The process includes loading the intermediate roll in two directions in a pressing plane direction via the upper and lower rolls, monitoring pressures exerted in the two directions on the intermediate roll in the pressing plane direction, and releasing the load on the intermediate roll when a difference between the pressures exerted in the two directions on the intermediate roll is greater than a predefined amount.Type: GrantFiled: September 14, 2000Date of Patent: March 9, 2004Assignee: Voith Sulzer Papiertechnik Patent GmbHInventors: Rolf van Haag, Ingo Engelhardt