Patents by Inventor Luiz Silva

Luiz Silva 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: 8080132
    Abstract: The invention relates to a device (11) for stabilising the transport of a material web (12) on the upper face of an air-permeable machine clothing (10), in particular a fibrous web. The device is located on the underside of the machine clothing directly upstream of an intake nip in the direction of travel (17) of the web, said nip being formed by a roll (5) and the machine clothing, and comprises a first negative-pressure zone (19) and at least one vacuum opening (20) that faces essentially in the opposite direction to the direction of travel of the web, communicating with the first negative-pressure zone of the device. This permits the boundary layer (23) of air that is carried along by the underside of the machine clothing to be at least partially sucked from said clothing into the first negative-pressure zone.
    Type: Grant
    Filed: July 6, 2005
    Date of Patent: December 20, 2011
    Assignee: Voith Patent GmbH
    Inventors: Thomas Scherb, Carlos Luiz Silva
  • Patent number: 7615136
    Abstract: A machine for the manufacture of a fiber material web (12), in particular a paper or card web, having a forming zone including at least one circulating endless dewatering belt (16, 18) includes at least one pressing zone (14) combined with a suction system.
    Type: Grant
    Filed: September 17, 2004
    Date of Patent: November 10, 2009
    Assignee: Voith Patent GmbH
    Inventor: Luiz Silva
  • Publication number: 20080073051
    Abstract: System for drying a tissue or hygiene web. The system includes a permeable structured fabric carrying the web over a drying apparatus. A permeable dewatering fabric contacts the web and is guided over the drying apparatus. A mechanism is used to apply pressure to the permeable structured fabric, the web, and the permeable dewatering fabric at the drying apparatus. 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: Application
    Filed: September 28, 2007
    Publication date: March 27, 2008
    Applicant: Voith Fabrics Patent GmbH
    Inventors: Jeffrey Herman, Thomas Scherb, Luiz Silva, Hubert Walkenhaus
  • Publication number: 20080023165
    Abstract: A method of manufacturing a fibrous web in a papermaking machine including the steps of forming, carrying and transferring the fibrous web. The forming step includes forming the fibrous web in a forming device. A first carrying step includes carrying the fibrous web from the forming device through an extended nip press apparatus. A second carrying step includes carrying the fibrous web from the extended nip press apparatus to a transfer point. The transferring step includes transferring the fibrous web at the transfer point to a drying cylinder.
    Type: Application
    Filed: October 4, 2007
    Publication date: January 31, 2008
    Inventors: Jeffrey Herman, Thomas Scherb, Luiz Silva
  • Publication number: 20070272386
    Abstract: The present invention provides a method and a press in a machine for producing or processing a material web, in particular a fibrous web, the press including a roller whose outer jacket is jointly enwrapped, at least in one wrap zone, respectively by at least a press belt, a support belt and a belt for dispersing water from the material web. The water-dispersing belt is located on the inside in contact with the outer jacket of the roller, the press belt on the outside and the support belt between the press belt and the water-dispersing belt. The material web is guided between the support belt and the water-dispersing belt through the wrap zone. At the end of the wrap zone, first the press belt is lifted off the support belt and then the support belt with the material web is lifted off the water dispersing belt.
    Type: Application
    Filed: February 23, 2007
    Publication date: November 29, 2007
    Inventors: Thomas Scherb, Hubert Walkenhaus, Luiz Silva
  • Publication number: 20070119558
    Abstract: This invention relates to a method for the production of a tissue paper web, which is produced from a pulp suspension having fibers. The method according to the present invention is characterized in that the pulp suspension is formed, at least partly by, a pulp suspension fraction obtained through the treatment of old paper, has a refining degree of less than 30° SR and is of such condition that a laboratory sheet according to TAPPI 205 SP 95 (Rapid Kothen), whose breaking length measured according to TAPPI 220 and TAPPI 494 is 4.0 km or more, is produced therefrom.
    Type: Application
    Filed: October 13, 2006
    Publication date: May 31, 2007
    Inventors: Thomas Scherb, Luiz Silva, Rogerio Berardi, Davilo Oyakawa
  • Publication number: 20070074835
    Abstract: A process for producing a fibrous web, in particular a tissue web, includes the following steps: in a pressing zone, the fibrous web is pressed lying between the structured belt and a circulating, unstructured permeable supporting belt; the fibrous web and the structured belt are fed to a press nip provided on a Yankee cylinder; the fibrous web is transferred from the structured belt to the surface of the Yankee cylinder in the region of the press nip; and the surface of the Yankee cylinder is doctored off continuously and then recoated again, so that a renewed coating is always present in the press nip.
    Type: Application
    Filed: September 26, 2006
    Publication date: April 5, 2007
    Inventors: Thomas Scherb, Luiz Silva, Davilo Oyakawa, Rogerio Berardi
  • Publication number: 20070074837
    Abstract: A device for producing a fibrous web and, in particular, a web of tissue including a press zone through which the fibrous web together with an endless permeable structured band and an unstructured permeable supporting band is fed while lying between the structure band and the supporting band, a press nip provided on a drying cylinder through which the fibrous web together with the structured band is fed while lying between the structured band and the drying cylinder, and after which the fibrous web is led from the drying cylinder through a calender.
    Type: Application
    Filed: September 26, 2006
    Publication date: April 5, 2007
    Inventors: Thomas Scherb, Luiz Silva, Rogerio Berardi, Davilo Oyakawa
  • Publication number: 20070068645
    Abstract: A machine for the manufacture of a fiber material web (12), in particular a paper or card web, having a forming zone including at least one circulating endless dewatering belt (16, 18) includes at least one pressing zone (14) combined with a suction system.
    Type: Application
    Filed: September 17, 2004
    Publication date: March 29, 2007
    Inventor: Luiz Silva
  • Publication number: 20070029061
    Abstract: This invention relates to a machine for the production of a tissue paper web with a forming section in which the tissue paper web is formed from a pulp suspension on a skin and with a nip which is formed between the cylindrical surface of a drying cylinder, in particular a Yankee drying cylinder, and a mating surface and through which the tissue paper web can be conveyed together with the skin. The configuration of the machine is variable such that, depending on the quality of the tissue paper to be produced, for example its absorbency or tear resistance, the skin is either a three-dimensionally structured skin, a structured mesh, a non-structured skin, or a felt, whereby the mating surface is formed by the cylindrical surface of a press roller which includes a suction zone and in which provision is made for bores communicating with the suction zone.
    Type: Application
    Filed: August 3, 2006
    Publication date: February 8, 2007
    Inventors: Thomas Scherb, Luiz Silva, Rogerio Berardi, Danilo Oyakawa
  • Publication number: 20070015952
    Abstract: A medical device is used to treat bladder urgency, frequency, and discomfort. The vibrational unit and power source can be contained together or separately. This device has external and intra-cavitary usage. For intra-cavitary usage, a means to retrieve the unit is provided.
    Type: Application
    Filed: May 15, 2006
    Publication date: January 18, 2007
    Inventors: T. Chang, Luiz Silva
  • Publication number: 20060266487
    Abstract: A method for the production of a tissue paper web, which is produced from a pulp suspension comprised of fibers, the pulp suspension having a refining degree of less than 21° SR and being of such condition that it is possible to produce from said pulp suspension a laboratory sheet according to TAPPI 205 SP 95 (Rapid Köthen) whose breaking length measured according to TAPPI 220 and TAPPI 494 at at least a specific refining degree (RDspecific) is greater than or equal to the value resulting from 0.55(km/SR)*(RDspecific?10° SR), whereby the specific refining degree is selected from a refining range from 15° SR to less than 21° SR, in particular 15° SR to 19° SR.
    Type: Application
    Filed: August 1, 2006
    Publication date: November 30, 2006
    Inventors: Thomas Scherb, Luiz Silva, Rogerio Berardi, Dailo Oyakawa
  • Publication number: 20060086473
    Abstract: A permeable belt, a belt press including a roll having an exterior surface and the permeable belt, and a method of drying or pressing a web with the permeable belt. The permeable belt can be tensioned to at least 30 KN/m. A side of the permeable belt has an open area of at least approximately 25% and a contact area of at least approximately 25%. 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: Application
    Filed: October 26, 2004
    Publication date: April 27, 2006
    Applicant: Voith Fabrics Patent GmbH
    Inventors: Jeffrey Herman, Thomas Scherb, Luiz Silva, Hubert Walkenhaus
  • Publication number: 20060085998
    Abstract: System for drying a tissue or hygiene web. The system includes a permeable structured fabric carrying the web over a drying apparatus. A permeable dewatering fabric contacts the web and is guided over the drying apparatus. A mechanism is used to apply pressure to the permeable structured fabric, the web, and the permeable dewatering fabric at the drying apparatus. 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: Application
    Filed: October 26, 2004
    Publication date: April 27, 2006
    Applicant: VOITH FABRICS PATENT GmbH
    Inventors: Jeffrey Herman, Thomas Scherb, Luiz Silva, Hubert Walkenhaus
  • Publication number: 20060085999
    Abstract: System for drying a tissue or hygiene web. The system includes a permeable structured fabric carrying the web over a drying apparatus. A permeable dewatering fabric contacts the web and is guided over the drying apparatus. A mechanism is utilized for applying pressure to the permeable structured fabric, the web, and the permeable dewatering fabric at the drying apparatus. 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: Application
    Filed: July 27, 2005
    Publication date: April 27, 2006
    Applicant: Voith Fabrics Patent GmbH
    Inventors: Thomas Scherb, Jeffrey Herman, Luiz Silva, Hubert Walkenhaus
  • Publication number: 20050167061
    Abstract: A method of dewatering a fibrous web in a paper machine including the steps of carrying the fibrous web on a side of a first fabric; contacting the fibrous web with a side of a second fabric, the fibrous web being between the first fabric and the second fabric; and passing air successively through the first fabric, the fibrous web and the second fabric.
    Type: Application
    Filed: January 30, 2004
    Publication date: August 4, 2005
    Inventors: Thomas Scherb, Jeffrey Herman, Luiz Silva
  • Publication number: 20050167062
    Abstract: A dewatering system in a paper machine includes a dewatering fabric and a press. The dewatering fabric includes a woven permeable fabric and a polymeric layer having openings therethrough, the polymeric layer is connected to the permeable fabric. The press applying pressure to a portion of the dewatering fabric.
    Type: Application
    Filed: January 30, 2004
    Publication date: August 4, 2005
    Inventors: Jeffrey Herman, Thomas Scherb, Luiz Silva
  • Publication number: 20050167068
    Abstract: 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: Application
    Filed: January 30, 2004
    Publication date: August 4, 2005
    Inventors: Jeffrey Herman, Thomas Scherb, Luiz Silva