Patents by Inventor Luiz Carlos Silva
Luiz Carlos 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).
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Patent number: 7905989Abstract: An apparatus for producing a fibrous web includes: a circulating permeable structured belt defining a sheet forming zone in which the fibrous web is formed; a circulating unstructured permeable supporting belt; a pressing section through which the fibrous web is led lying between the circulating permeable structured belt and the circulating unstructured permeable supporting belt; a Yankee cylinder having a surface and defining a press nip and a press nip region, wherein the fibrous web is led together with the structured belt through said press nip, the fibrous web in the region of the press nip being transferred from the structured belt to the surface of the Yankee cylinder; at least one doctor which doctors off the surface of the Yankee cylinder continuously; and a coating device which recoats the surface of the Yankee cylinder so that a renewed coating material is always present in the press nip.Type: GrantFiled: June 9, 2009Date of Patent: March 15, 2011Assignee: Voith Patent GmbHInventors: Thomas Scherb, Luiz Carlos Silva, Danilo Oyakawa, Rogerio Berardi
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Patent number: 7850825Abstract: An apparatus for producing a fibrous web, in particular a tissue web, with a press zone through which the fibrous web is passed in a lying position between a circulating permeable structured belt and a circulating permeable non-structured supporting belt. A press nip is provided on a Yankee Cylinder through which the fibrous web is passed in the lying position together with the structured belt between the structured belt and the Yankee cylinder, whereby the press zone is limited on the side adjacent the supporting belt by a substantially smooth surface, and whereby the supporting belt is not brought together with the fibrous web and the structured belt until proximate to the press zone.Type: GrantFiled: May 16, 2008Date of Patent: December 14, 2010Assignee: Voith Patent GmbHInventors: Thomas Scherb, Luiz Carlos Silva, Rogerio Berardi, Danilo Oyakawa
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Patent number: 7842166Abstract: 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: GrantFiled: April 22, 2008Date of Patent: November 30, 2010Assignee: Voith Patent GmbHInventors: Jeffrey Herman, Thomas Thoroee Scherb, Luiz Carlos Silva, Hubert Walkenhaus
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Patent number: 7815773Abstract: 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: GrantFiled: October 4, 2007Date of Patent: October 19, 2010Assignee: Voith Patent GmbHInventors: Jeffrey Herman, Thomas Thor{hacek over (o)}e Scherb, Luiz Carlos Silva
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Publication number: 20100243190Abstract: A belt press for a paper machine, the belt press including a roll having an exterior surface and a permeable belt. The permeable belt including a first side being guided over a portion of the exterior surface of the roll. The permeable belt having a tension of at least approximately 30 kN/m. The first side of the belt having an open area of at least approximately 25% and a contact area of at least approximately 10%. A web travels between the permeable belt and the exterior surface of the roll.Type: ApplicationFiled: March 25, 2010Publication date: September 30, 2010Inventors: Thomas Thoröe Scherb, Hubert Walkenhaus, Jeffrey Herman, Luiz Carlos Silva
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Publication number: 20100170651Abstract: A pressing arrangement including at least one first fabric and second fabric both being permeable. A paper web is disposed between the first fabric and the second fabric. A pressure producing element is in contact with the first fabric. A support surface of a supporting structure is in contact with the second fabric. A differential pressure is provided between the first fabric and the support surface that acts on the first fabric, the paper web, and the second fabric, whereby the paper web is subjected to mechanical pressure and experiences a predetermined hydraulic pressure so as to cause water to be drained from the paper web. The pressing arrangement is structured and arranged to allow air to flow in a direction from the first fabric through the paper web and through the second fabric.Type: ApplicationFiled: March 17, 2010Publication date: July 8, 2010Inventors: Thomas Thoröe Scherb, Hubert Walkenhaus, Jeffrey Herman, Luiz Carlos Silva
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Patent number: 7691230Abstract: 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: GrantFiled: September 26, 2006Date of Patent: April 6, 2010Assignee: Voith Patent GmbHInventors: Thomas Scherb, Luiz Carlos Silva, Rogerio Berardi, Danilo Oyakawa
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Patent number: 7686923Abstract: A paper machine dewatering system includes a first fabric, a second fabric, and an airflow device. The first fabric carries a fibrous web on a side thereof. The second fabric is in at least partial contact with the fibrous web, the fibrous web being between the first fabric and the second fabric. The airflow device moves air successively through the first fabric, the fibrous web, and the second fabric.Type: GrantFiled: February 7, 2008Date of Patent: March 30, 2010Assignee: Voith Patent GmbHInventors: Thomas Thoröe Scherb, Jeffrey Herman, Luiz Carlos Silva
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Patent number: 7658821Abstract: A press fabric having a plurality of surface pressing plates on a sheet side of the fabric imparts an impression onto a sheet of paper web during a pressing process. The surface pressing plates are preferably resin pressing plates, and form at least one of a random pattern of dots, a predetermined pattern of dots, a grid pattern of dots, a regular grid pattern of lines, an irregular grid pattern of lines a plurality of squiggly lines, a plurality of wavy lines, a plurality of straight lines, words and pictures.Type: GrantFiled: August 23, 2006Date of Patent: February 9, 2010Assignee: Voith Patent GmbHInventors: Robert Crook, John Jeffery, Lippi A. Fernandes, Anthony Morton, Justin Payne, David Ponton, Luiz Carlos Silva
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Publication number: 20090242158Abstract: An apparatus for producing a fibrous web includes: a circulating permeable structured belt defining a sheet forming zone in which the fibrous web is formed; a circulating unstructured permeable supporting belt; a pressing section through which the fibrous web is led lying between the circulating permeable structured belt and the circulating unstructured permeable supporting belt; a Yankee cylinder having a surface and defining a press nip and a press nip region, wherein the fibrous web is led together with the structured belt through said press nip, the fibrous web in the region of the press nip being transferred from the structured belt to the surface of the Yankee cylinder; at least one doctor which doctors off the surface of the Yankee cylinder continuously; and a coating device which recoats the surface of the Yankee cylinder so that a renewed coating material is always present in the press nip.Type: ApplicationFiled: June 9, 2009Publication date: October 1, 2009Inventors: Thomas Scherb, Luiz Carlos Silva, Davilo Oyakawa, Rogerio Berardi
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Patent number: 7582187Abstract: 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: GrantFiled: September 26, 2006Date of Patent: September 1, 2009Assignee: Voith Patent GmbHInventors: Thomas Scherb, Luiz Carlos Silva, Davilo Oyakawa, Rogerio Berardi
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Publication number: 20090205794Abstract: 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 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: ApplicationFiled: April 24, 2009Publication date: August 20, 2009Inventors: Thomas Scherb, Luiz Carlos Silva, Rogerio Berardi, Dailo Oyakawa
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Publication number: 20090165980Abstract: 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: ApplicationFiled: March 10, 2009Publication date: July 2, 2009Applicant: VOITH PATENT GmbHInventors: Thomas Thoroe Scherb, Jeffrey Herman, Luiz Carlos Silva, Hubert Walkenhaus
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Publication number: 20090165979Abstract: 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: ApplicationFiled: March 10, 2009Publication date: July 2, 2009Applicant: VOITH PATENT GmbHInventors: Thomas Thoroee Scherb, Jeffrey Herman, Luiz Carlos Silva, Hubert Walkenhaus
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Patent number: 7510631Abstract: 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: GrantFiled: July 27, 2005Date of Patent: March 31, 2009Assignee: Voith Patent GmbHInventors: Thomas Thoroee Scherb, Jeffrey Herman, Luiz Carlos Silva, Hubert Walkenhaus
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Patent number: 7476293Abstract: 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: GrantFiled: October 26, 2004Date of Patent: January 13, 2009Assignee: Voith Patent GmbHInventors: Jeffrey Herman, Thomas Thoroee Scherb, Luiz Carlos Silva, Hubert Walkenhaus
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Patent number: 7476294Abstract: 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: GrantFiled: October 26, 2004Date of Patent: January 13, 2009Assignee: Voith Patent GmbHInventors: Jeffrey Herman, Thomas Thoroee Scherb, Luiz Carlos Silva, Hubert Walkenhaus
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Publication number: 20080257513Abstract: The present invention provides an apparatus the surface of the web supporting face and/or the material forming the web supporting face are selected with a view to little crêping belt wear caused by operation of the apparatus, in particular with a view to a small coefficient of friction.Type: ApplicationFiled: June 13, 2008Publication date: October 23, 2008Inventors: Thomas Scherb, Luiz Carlos Silva, Rogerio Berardi
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Publication number: 20080257514Abstract: Apparatus for treating a fibrous web, in particular for producing a tissue paper web, with at least one crêping nip which is limited on the one side by a crêping belt and on the other side by a web supporting face formed in particular by a mating roll and through which the fibrous web can be passed, whereby a relative speed is provided between the crêping belt and the web supporting face, whereby in order to achieve a good crêping effect with simultaneous little crêping belt wear the material and/or the structure of the web supporting face and the surface of the crêping belt are coordinated with each other with a view to reducing the crêping belt wear caused by operation of the apparatus.Type: ApplicationFiled: June 13, 2008Publication date: October 23, 2008Inventors: Thomas Scherb, Luiz Carlos Silva, Rogerio Berardi
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Publication number: 20080251227Abstract: An apparatus for producing a fibrous web, in particular a tissue web, with a press zone through which the fibrous web is passed in a lying position between a circulating permeable structured belt and a circulating permeable non-structured supporting belt. A press nip is provided on a Yankee Cylinder through which the fibrous web is passed in the lying position together with the structured belt between the structured belt and the Yankee cylinder, whereby the press zone is limited on the side adjacent the supporting belt by a substantially smooth surface, and whereby the supporting belt is not brought together with the fibrous web and the structured belt until proximate to the press zone.Type: ApplicationFiled: May 16, 2008Publication date: October 16, 2008Inventors: Thomas Scherb, Luiz Carlos Silva, Rogerio Berardi, Davilo Oyakawa