Patents by Inventor Harald Schmidt-Hebbel
Harald Schmidt-Hebbel has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7674086Abstract: In an apparatus for handling rolls of web material, a shaft bearing one or more fully wound rolls of web material thereon are supported from one end in a cantilever support. An external mandrel is aligned with a free end of the shaft. A roll-moving device is positioned to shift the rolls axially along the shaft away from the supported end of the shaft. The roll-moving device shifts the rolls of web material off the shaft and onto the aligned external mandrel, shaft or other support device. The weight of the roll of web material is borne by the shaft and external mandrel throughout the transfer. Once the shaft is removed, the rolls of web material can be handled during further processing from the core.Type: GrantFiled: December 3, 2004Date of Patent: March 9, 2010Assignee: Voith Andritz Tissue, LLCInventors: Harald Schmidt-Hebbel, Gerald Kramer
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Patent number: 7662260Abstract: A method for the manufacture of a structured fiber web including the steps of pressing a fiber web onto an imprinting fabric by way of a first pressure field, thereby pre-imprinting the fiber web, the fiber web having a dry content of less than approximately 35%, and subsequently pressing the fiber web onto the imprinting fabric by way of a further pressure field.Type: GrantFiled: August 28, 2007Date of Patent: February 16, 2010Assignee: Voith Patent GmbHInventors: Thomas Thoroe-Scherb, Harald Schmidt-Hebbel, Jeffrey Herman
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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: 7331120Abstract: A throughflow cylinder made at least partly of fiber-reinforced plastic including glass fibers, aramide fibers, carbon fibers, and/or carbon-reinforced plastic (CRP). The matrix material of the fiber-reinforced plastic includes a material heat resistant at least up to 300° C. such as a resin. At least one fiber layer is provided such that the coefficient of thermal expansion ? of the fiber-reinforced plastic is lower than that of steel at approximately 300° C. and preferably lies in a region of 0??<9·10?6·1/Kelvin. The manufacture of the fiber-reinforced plastic, for example carbon fiber-reinforced plastic, is such that more than approximately 30%, in particular more than approximately 50% and preferably more than approximately 70% of the fibers are oriented at least substantially in the peripheral direction.Type: GrantFiled: November 13, 2003Date of Patent: February 19, 2008Assignee: Voith Paper Patent GmbHInventors: Thomas Thoröe Scherb, Harald Schmidt-Hebbel
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Patent number: 7326320Abstract: Machine for the manufacture of fiber material web with shoe pressing unit and drying or tissue cylinder arranged to form at least one press nip. Water absorbent carrier band and water-impermeable pressing band being guided through the at least one press nip, and 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 web travel direction of less than or equal to approximately 60 mm. Pressure profile results over press nip length having maximum pressing pressure greater than or equal to approximately 3.3 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: April 26, 2004Date of Patent: February 5, 2008Assignee: Voith Patent GmbHInventors: Thomas Thoroe Scherb, Harald Schmidt-Hebbel
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Publication number: 20070289159Abstract: A method for the manufacture of a structured fiber web including the steps of pressing a fiber web onto an imprinting fabric by way of a first pressure field, thereby pre-imprinting the fiber web, the fiber web having a dry content of less than approximately 35%, and subsequently pressing the fiber web onto the imprinting fabric by way of a further pressure field.Type: ApplicationFiled: August 28, 2007Publication date: December 20, 2007Inventors: Thomas Thoroe-Scherb, Harald Schmidt-Hebbel, Jeffrey Herman
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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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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: 7255301Abstract: A plurality of upper spool rails arranged over a reel-up device. Each elevated rail temporarily stores reeling spools that are successively loaded into a reeling station to wind a web and form finished reels of paper. The elevated spool rails include: a first pair of parallel upper spool rails extending over the reel-up device and adapted to support a plurality of a first type of reeling spools; and a second pair of parallel upper spool rails spaced above the first pair, and adapted to a plurality of a second type of reeling spools.Type: GrantFiled: December 3, 2004Date of Patent: August 14, 2007Assignee: Andritz Tissue Inc.Inventors: Harald Schmidt-Hebbel, John H. Schamell, Gerald J. Kramer, Keith Sippel, Bradford Dolbey
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Publication number: 20060254075Abstract: A throughflow cylinder made at least partly of fiber-reinforced plastic including glass fibers, aramide fibers, carbon fibers, and/or carbon-reinforced plastic (CRP). The matrix material of the fiber-reinforced plastic includes a material heat resistant at least up to 300° C. such as a resin. At least one fiber layer is provided such that the coefficient of thermal expansion ? of the fiber-reinforced plastic is lower than that of steel at approximately 300° C. and preferably lies in a region of 0??<9·10?6·1/Kelvin. The manufacture of the fiber-reinforced plastic, for example carbon fiber-reinforced plastic, is such that more than approximately 30%, in particular more than approximately 50% and preferably more than approximately 70% of the fibers are oriented at least substantially in the peripheral direction.Type: ApplicationFiled: July 24, 2006Publication date: November 16, 2006Inventors: Thomas Scherb, Harald Schmidt-Hebbel
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Patent number: 7008506Abstract: The present invention is directed to a machine and process for producing a tissue web. The machine includes a forming area including at least one rotating continuous dewatering wire with zonally varied wire permeability, and at least one shoe press. The process includes dewatering the tissue web with at least the at least one continuous dewatering wire with zonally varied wire permeability, and pressing the tissue web in the at least one shoe press.Type: GrantFiled: January 26, 2001Date of Patent: March 7, 2006Assignee: Voith Paper Patent GmbHInventors: Thomas Thoröe Scherb, Harald Schmidt-Hebbel
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Patent number: 6986830Abstract: A method and machine for the manufacture of a fiber web, in particular of a tissue web or of a hygienic web, in which the fiber web is formed on a soft clothing with fine pores and the clothing is guided over a surface subject to suction and in which the fiber web is transferred from a soft clothing with fine pores directly onto a TAD wire of a TAD drying apparatus. An optimum quality of the respective final product is achieved with an energy effort which is as low as possible, in particular, the energy effort required with vacuum generation in the dewatering of the fiber web is reduced.Type: GrantFiled: December 19, 2003Date of Patent: January 17, 2006Assignee: Voith Paper Patent GmbHInventors: Thomas Thoröe Scherb, Harald Schmidt-Hebbel, Jeffrey Herman
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Publication number: 20050189448Abstract: A plurality of upper spool rails arranged over a reel-up device. Each elevated rail temporarily stores reeling spools that are successively loaded into a reeling station to wind a web and form finished reels of paper. The elevated spool rails include: a first pair of parallel upper spool rails extending over the reel-up device and adapted to support a plurality of a first type of reeling spools; and a second pair of parallel upper spool rails spaced above the first pair, and adapted to a plurality of a second type of reeling spools.Type: ApplicationFiled: December 3, 2004Publication date: September 1, 2005Applicant: Voith Andritz Tissue LLCInventors: Harald Schmidt-Hebbel, John Schamell, Gerald Kramer, Keith Sippel, Bradford Dolbey
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Publication number: 20050150996Abstract: The invention employs a fluid cushion between a shaft and cylindrical core to reduce friction between the core and shaft. Reduced friction at the shaft/core interface lowers the forces required to separate rolls of web material from the shaft. Lower separation forces should mean less damage to the wound web material and less wear and tear on the shaft and extraction equipment.Type: ApplicationFiled: December 3, 2004Publication date: July 14, 2005Inventors: Harald Schmidt-Hebbel, Gerald Kramer
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Publication number: 20050150990Abstract: In an apparatus for handling rolls of web material, a shaft bearing one or more fully wound rolls of web material thereon are supported from one end in a cantilever support. An external mandrel is aligned with a free end of the shaft. A roll-moving device is positioned to shift the rolls axially along the shaft away from the supported end of the shaft. The roll-moving device shifts the rolls of web material off the shaft and onto the aligned external mandrel, shaft or other support device. The weight of the roll of web material is borne by the shaft and external mandrel throughout the transfer. Once the shaft is removed, the rolls of web material can be handled during further processing from the core.Type: ApplicationFiled: December 3, 2004Publication date: July 14, 2005Inventors: Harald Schmidt-Hebbel, Gerald Kramer
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Patent number: 6841037Abstract: A machine for producing a tissue web is provided, including a former having a forming region which includes at least one circulating, continuous dewatering wire having zonally variable wire permeability. Furthermore, a process for producing the tissue web in a tissue machine is provided. The process includes forming the tissue web in a forming region of a former, wherein the forming region includes at least one circulating, continuous dewatering wire having zonally variable wire permeability.Type: GrantFiled: January 26, 2001Date of Patent: January 11, 2005Assignee: Voith Paper Patent GmbHInventors: Thomas Thoröe Scherb, Harald Schmidt-Hebbel
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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: 20040244933Abstract: A method and machine for the manufacture of a fiber web, in particular of a tissue web or of a hygienic web, in which the fiber web is formed on a soft clothing with fine pores and the clothing is guided over a surface subject to suction and in which the fiber web is transferred from a soft clothing with fine pores directly onto a TAD wire of a TAD drying apparatus. An optimum quality of the respective final product is achieved with an energy effort which is as low as possible, in particular, the energy effort required with vacuum generation in the dewatering of the fiber web is reduced.Type: ApplicationFiled: December 19, 2003Publication date: December 9, 2004Inventors: Thomas Thoroe Scherb, Harald Schmidt-Hebbel, Jeffrey Herman
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Publication number: 20040237210Abstract: A method for the manufacture of a structured fiber web including the steps of pressing a fiber web onto an imprinting fabric by way of a first pressure field, thereby pre-imprinting the fiber web, the fiber web having a dry content of less than approximately 35%, and subsequently pressing the fiber web onto the imprinting fabric by way of a further pressure field.Type: ApplicationFiled: December 18, 2003Publication date: December 2, 2004Inventors: Thomas Thoroe-Scherb, Harald Schmidt-Hebbel, Jeffrey Herman
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Patent number: 6821391Abstract: A former for producing a tissue web and a process of making a tissue web using the former. The former includes a forming element, an inner dewatering belt, and an outer dewatering belt. The inner and outer belts converge to form a stock inlet nip. The inner and outer belts are guided over the forming element and thereafter separating from one another in the area of a separation point. At least one suction element is positioned adjacent the inner belt on a side which is opposite the outer belt. Alternatively, a conditioning device is positioned adjacent the outer belt. The process includes forming the tissue web in the area of the forming element, guiding the inner and outer belts around the forming element, and separating the inner and outer belts in the area of the separation point. Alternatively, the process includes conditioning the outer belt.Type: GrantFiled: January 26, 2001Date of Patent: November 23, 2004Assignee: Voith Paper Patent GmbHInventors: Thomas Thoröe Scherb, Harald Schmidt-Hebbel