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).

  • Patent number: 7674086
    Abstract: 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: Grant
    Filed: December 3, 2004
    Date of Patent: March 9, 2010
    Assignee: Voith Andritz Tissue, LLC
    Inventors: Harald Schmidt-Hebbel, Gerald Kramer
  • Patent number: 7662260
    Abstract: 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: Grant
    Filed: August 28, 2007
    Date of Patent: February 16, 2010
    Assignee: Voith Patent GmbH
    Inventors: Thomas Thoroe-Scherb, Harald Schmidt-Hebbel, Jeffrey Herman
  • Patent number: 7332059
    Abstract: 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: Grant
    Filed: April 26, 2004
    Date of Patent: February 19, 2008
    Assignee: Voith Sulzer Papiertechnik Patent GmbH
    Inventors: Thomas Thoroe Scherb, Harald Schmidt-Hebbel
  • Patent number: 7331120
    Abstract: 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: Grant
    Filed: November 13, 2003
    Date of Patent: February 19, 2008
    Assignee: Voith Paper Patent GmbH
    Inventors: Thomas Thoröe Scherb, Harald Schmidt-Hebbel
  • Patent number: 7326320
    Abstract: 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: Grant
    Filed: April 26, 2004
    Date of Patent: February 5, 2008
    Assignee: Voith Patent GmbH
    Inventors: Thomas Thoroe Scherb, Harald Schmidt-Hebbel
  • Publication number: 20070289159
    Abstract: 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: Application
    Filed: August 28, 2007
    Publication date: December 20, 2007
    Inventors: Thomas Thoroe-Scherb, Harald Schmidt-Hebbel, Jeffrey Herman
  • Patent number: 7291249
    Abstract: 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: Grant
    Filed: December 18, 2003
    Date of Patent: November 6, 2007
    Assignee: Voith Paper Patent GmbH
    Inventors: Thomas Thoröe-Scherb, Harald Schmidt-Hebbel, Jeffrey Herman
  • Patent number: 7288168
    Abstract: 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: Grant
    Filed: December 23, 2003
    Date of Patent: October 30, 2007
    Assignee: Voith Sulzer Papiertechnik Patent GmbH
    Inventors: Thomas Thoroe Scherb, Harald Schmidt-Hebbel
  • Patent number: 7255301
    Abstract: 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: Grant
    Filed: December 3, 2004
    Date of Patent: August 14, 2007
    Assignee: Andritz Tissue Inc.
    Inventors: Harald Schmidt-Hebbel, John H. Schamell, Gerald J. Kramer, Keith Sippel, Bradford Dolbey
  • Publication number: 20060254075
    Abstract: 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: Application
    Filed: July 24, 2006
    Publication date: November 16, 2006
    Inventors: Thomas Scherb, Harald Schmidt-Hebbel
  • Patent number: 7008506
    Abstract: 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: Grant
    Filed: January 26, 2001
    Date of Patent: March 7, 2006
    Assignee: Voith Paper Patent GmbH
    Inventors: Thomas Thoröe Scherb, Harald Schmidt-Hebbel
  • Patent number: 6986830
    Abstract: 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: Grant
    Filed: December 19, 2003
    Date of Patent: January 17, 2006
    Assignee: Voith Paper Patent GmbH
    Inventors: Thomas Thoröe Scherb, Harald Schmidt-Hebbel, Jeffrey Herman
  • Publication number: 20050189448
    Abstract: 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: Application
    Filed: December 3, 2004
    Publication date: September 1, 2005
    Applicant: Voith Andritz Tissue LLC
    Inventors: Harald Schmidt-Hebbel, John Schamell, Gerald Kramer, Keith Sippel, Bradford Dolbey
  • Publication number: 20050150996
    Abstract: 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: Application
    Filed: December 3, 2004
    Publication date: July 14, 2005
    Inventors: Harald Schmidt-Hebbel, Gerald Kramer
  • Publication number: 20050150990
    Abstract: 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: Application
    Filed: December 3, 2004
    Publication date: July 14, 2005
    Inventors: Harald Schmidt-Hebbel, Gerald Kramer
  • Patent number: 6841037
    Abstract: 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: Grant
    Filed: January 26, 2001
    Date of Patent: January 11, 2005
    Assignee: Voith Paper Patent GmbH
    Inventors: Thomas Thoröe Scherb, Harald Schmidt-Hebbel
  • Publication number: 20040261967
    Abstract: 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: Application
    Filed: April 26, 2004
    Publication date: December 30, 2004
    Applicant: Voith Sulzer Papiertechnik Patent GmbH
    Inventors: Thomas Thoroe Scherb, Harald Schmidt-Hebbel
  • Publication number: 20040244933
    Abstract: 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: Application
    Filed: December 19, 2003
    Publication date: December 9, 2004
    Inventors: Thomas Thoroe Scherb, Harald Schmidt-Hebbel, Jeffrey Herman
  • Publication number: 20040237210
    Abstract: 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: Application
    Filed: December 18, 2003
    Publication date: December 2, 2004
    Inventors: Thomas Thoroe-Scherb, Harald Schmidt-Hebbel, Jeffrey Herman
  • Patent number: 6821391
    Abstract: 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: Grant
    Filed: January 26, 2001
    Date of Patent: November 23, 2004
    Assignee: Voith Paper Patent GmbH
    Inventors: Thomas Thoröe Scherb, Harald Schmidt-Hebbel