With Stretching, Tensioning, Decurling, Flexing Or Breaking Patents (Class 162/197)
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Patent number: 11733635Abstract: An image forming apparatus includes a control unit to perform a first conveyance process in which a sheet is conveyed in a second direction opposite to a first direction at a first speed by a reverse conveyance roller pair, a second conveyance process in which the sheet is conveyed at a second speed by a decurler, and a third conveyance process in which the sheet is conveyed to an inlet roller pair at a third speed by a conveyance roller pair, with the second speed being slower than the first speed, and the third speed being different from the first and second speeds. An image forming unit conveys the sheet at a fourth speed while transferring the image onto the sheet, the fourth speed being slower than the first speed, the second speed, and the third speed.Type: GrantFiled: April 21, 2021Date of Patent: August 22, 2023Assignee: CANON KABUSHIKI KAISHAInventor: Atsushi Yoshida
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Patent number: 11505421Abstract: A deflecting device for deflecting a conveyed sheet includes a guiding assembly having an inlet for receiving a conveyed sheet front an upstream section of a main conveying path, a primary outlet for discharging a conveyed sheet onto a downstream section of a main conveying path, a secondary outlet for discharging a conveyed sheet onto an initial section of a side conveying path, and a passing area for passing a conveyed sheet from the inlet towards the primary outlet; and a deflector for deflecting a conveyed sheet towards the secondary outlet, movable into a receiving position for receiving a leading edge of a conveyed sheet inside the passing area and movable into a discharge position for discharging a leading edge of a conveyed sheet towards the secondary outlet, wherein the deflector defines a curved trajectory for a conveyed sheet deflected towards the secondary outlet in the discharge position, wherein one side of the curved trajectory faces the primary outlet.Type: GrantFiled: August 28, 2020Date of Patent: November 22, 2022Assignee: CANON PRODUCTION PRINTING HOLDING B.V.Inventors: Thijs G. M. Vromen, Hermanus M. Kuypers, Rob Hoogendijk, Peter G. La Vos
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Patent number: 10940700Abstract: A decurling device includes a first frame, a second frame, a decurling unit that decurls a sheet, and a level adjustment mechanism that is capable of adjusting an inclination of the decurling unit. The decurling unit includes a housing provided with a first support part and a second support part supported by the first frame and a third support part and a fourth support part supported by the second frame, paired support rollers, an endless belt, and a decurling roller. The level adjustment mechanism adjusts, in the vertical direction, a position of one of the first support part, the second support part, the third support part, and the fourth support part in the housing to adjust the inclination of the decurling unit in the vertical direction such that the paired support rollers extend in the first direction.Type: GrantFiled: December 18, 2019Date of Patent: March 9, 2021Inventor: Naoto Miyakoshi
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Patent number: 10350909Abstract: A decurling device includes a first conveyance path, a second conveyance path, a first switch, a decurler, and a controller. A sheet is conveyed along the first conveyance path or the second conveyance path. The first switch switches a route of conveyance of the sheet to the first conveyance path or the second conveyance path. The sheet has a first main surface and a second main surface. The decurler is located in the second conveyance path. The decurler corrects curl of the sheet. In a situation in which a weight per unit area of the sheet is smaller than a first threshold value, the controller controls the first switch such that the sheet is conveyed along the second conveyance path.Type: GrantFiled: May 10, 2018Date of Patent: July 16, 2019Assignee: KYOCERA Document Solutions Inc.Inventors: Hiroatsu Tamai, Takeshi Watanabe, Hiroyuki Ueda, Noriaki Ozawa, Toyotsune Inoue, Susumu Hiroshima, Takatoshi Nishimura
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Patent number: 9753417Abstract: A fixing device includes an endless fixing belt; a pressure roller to contact the fixing belt; a nip forming member to press the pressure roller from the fixing belt; a nip portion formed between the fixing belt and the pressure roller; a heater to heat the fixing belt to fuse and fix toner onto a recording sheet in the nip portion; an auxiliary driven roller; an auxiliary drive roller to drive the driven roller; an auxiliary nip portion, formed between an outer circumferential surface of the auxiliary driven roller and an outer circumferential surface of the auxiliary drive roller, to nip the recording sheet after toner fixation conveyed from the nip portion; and an outlet guide member, disposed downstream of the auxiliary nip portion, to guide the recording sheet after toner fixation conveyed from the auxiliary nip portion, with the toner-fixed recording sheet surface bent in a concave shape.Type: GrantFiled: March 15, 2016Date of Patent: September 5, 2017Assignee: Ricoh Company, Ltd.Inventors: Yoshiki Yamaguchi, Yoshio Hattori, Haruyuki Honda, Ryuuichi Mimbu, Toshihiko Shimokawa, Yutaka Ikebuchi, Yasunori Ishigaya, Kazuya Saito, Keitaro Shoji, Ryohei Matsuda
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Patent number: 9645539Abstract: A decurler includes an endless decurling belt that is disposed so as to face an image surface of a recording medium to which an image has been thermally fixed, a decurling roller that contacts the decurling belt so as to form a decurling region between the decurling roller and the decurling belt, and a support member that is made of a thermally conductive synthetic resin having a thermal conductivity of 1 (W/mK) or higher and that directly or indirectly contacts the decurling belt.Type: GrantFiled: September 14, 2015Date of Patent: May 9, 2017Assignee: FUJI XEROX CO., LTD.Inventors: Kenji Kanai, Shinichi Aizawa
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Patent number: 9604478Abstract: Beam strength and curl characteristics of sheets of print media change based not only on paper weight, but also on environmental conditions, such as humidity. Printers herein include a printing engine positioned to receive sheets of print media from a storage container. Sheet transport elements are positioned to transport the sheets from the storage through the printing engine. A sensor contacts one of the sheets, and the sensor detects a beam strength and curl characteristics signature profile of the sheet tested. Then, a processor (that is electrically connected to the sensor and the sheet transport elements) adjusts how the sheet transport elements contact the sheets (adjusts the angle, speed of, and force applied by, the sheet transport elements) based on the beam strength and curl characteristics signature profile.Type: GrantFiled: June 16, 2016Date of Patent: March 28, 2017Assignee: Xerox CorporationInventors: David B. Montfort, Barry K. Ayash, Mark Rule
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Patent number: 8980052Abstract: A method of making a fabric-creped absorbent cellulosic sheet. A papermaking furnish is compactively dewatered to form a nascent web having an apparently random distribution of papermaking fiber. The dewatered web is applied to a translating transfer surface that is moving at a transfer surface speed. The web is fabric creped from the transfer surface utilizing a patterned creping fabric. The fabric creping step occurs under pressure in a fabric creping nip defined between the transfer surface and the creping fabric. The creping fabric travels at a fabric speed that is slower than the transfer surface speed. The creping fabric contacts the transfer surface and applies pressure to the web against the transfer surface such that the fibers of the web are redistributed on the creping fabric to form a web with a drawable reticulum having a plurality of interconnected regions of different local basis weights.Type: GrantFiled: March 20, 2014Date of Patent: March 17, 2015Assignee: Georgia-Pacific Consumer Products LPInventors: Guy H. Super, Steven L. Edwards, Stephen J. McCullough, Frank C. Murray
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Patent number: 8956503Abstract: The present invention provides tissue products having a high degree of stretch and low modulus at relatively high tensile strengths, such as geometric mean tensile strengths greater than about 1500 g/3? and more preferably greater than about 2000 g/3?. The combination of a tough, yet relatively supple sheet is preferably achieved by subjecting the embryonic web to a speed differential as it is passed from one fabric in the papermaking process to another, commonly referred to as rush transfer.Type: GrantFiled: March 6, 2014Date of Patent: February 17, 2015Inventors: Michael Alan Hermans, Angela Ann Johnston, Gretchen Sarah Koch, Maurizio Tirimacco, Erin Ann McCormick, Mark William Sachs, Jeffrey Dean Holz, Peter John Allen, Kevin Joseph Vogt
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Publication number: 20140262096Abstract: A method for modifying the physical and/or chemical characteristics of a web of paper material includes the steps of causing a web of paper material, having a dry content between 1% and 90%, to adhere to an endless conveyor belt of elastic material, subjecting the conveyor belt and the web to at least one localized dimensional variation, and introducing at least one additive between the fibers of the web while adhering to the belt before or during the localized dimensional variation.Type: ApplicationFiled: October 25, 2012Publication date: September 18, 2014Inventor: Giorgio TRANI
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Patent number: 8778138Abstract: An absorbent cellulosic sheet includes a papermaking-fiber reticulum. The papermaking-fiber reticulum includes a plurality of fiber-enriched regions that are oriented in a cross-machine direction (CD) of the sheet. The fiber-enriched regions have (i) a local basis weight and (ii) papermaking fibers that are oriented in the CD of the sheet. The papermaking-fiber reticulum also includes a plurality of linking regions that link corresponding ones of the fiber-enriched regions together in linking directions, the linking regions having (i) basis weights that are lower than those of the corresponding ones of the fiber-enriched regions and (ii) papermaking fibers that are oriented in the linking directions.Type: GrantFiled: June 26, 2013Date of Patent: July 15, 2014Assignee: Georgia-Pacific Consumer Products LPInventors: Guy H. Super, Steven L. Edwards, Stephen J. McCullough, Frank C. Murray
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Patent number: 8702905Abstract: The present invention provides tissue products having a high degree of stretch and low modulus at relatively high tensile strengths, such as geometric mean tensile strengths greater than about 1500 g/3? and more preferably greater than about 2000 g/3?. The combination of a tough, yet relatively supple sheet is preferably achieved by subjecting the embryonic web to a speed differential as it is passed from one fabric in the papermaking process to another, commonly referred to as rush transfer.Type: GrantFiled: January 31, 2013Date of Patent: April 22, 2014Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Michael Alan Hermans, Angela Ann Johnston, Gretchen Sarah Koch, Maurizio Tirimacco, Erin Ann McCormick, Mark William Sachs, Jeffrey Dean Holz, Peter John Allen, Kevin Joseph Vogt
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Patent number: 8603299Abstract: A method for forming a web of transversely extensible fibrous material includes the steps of subjecting a fluid-permeable endless conveyor belt of elastic material, of thickness increasing from its longitudinal axis to its edges, to a localized transverse stretching operation, achieved by temporarily withdrawing a longitudinal band thereof from the surface on which it naturally slides and maintaining it in contact, in this stretched condition, with at least a part of the surface of a support member; depositing a web of pliable fibrous material having a liquid content between 3% and 70% by weight against that portion of the conveyor belt of elastic material which has been transversely stretched; and with vacuum, maintaining the web of pliable fibrous material adhering to the conveyor belt of elastic material during its return to its original configuration, to cause the transverse contraction of the web and the simultaneous partial removal of liquid therefrom.Type: GrantFiled: May 31, 2011Date of Patent: December 10, 2013Inventors: Giorgio Trani, Marion Sterner
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Patent number: 8568560Abstract: A method of making a cellulosic absorbent sheet. A cellulosic web is prepared from an aqueous papermaking furnish. The web is fabric-creped. The fabric-creping step forms a creped web with a drawable reticulum having a plurality of interconnected regions of different local basis weights including at least: (i) a plurality of fiber-enriched regions of a relatively high local basis weight, interconnected by way of (ii) a plurality of lower local basis weight linking regions. The drawable reticulum includes a cohesive fiber matrix capable of increasing in void volume upon drawing. The creped web is dried, while substantially preserving the drawable reticulum, to form a dried web, and the dried web is drawn. The drawing step increases the bulk of the dried web.Type: GrantFiled: May 1, 2012Date of Patent: October 29, 2013Assignee: Georgia-Pacific Consumer Products LPInventors: Frank C. Murray, Greg A. Wendt, Steven L. Edwards, Stephen J. McCullough, Guy H. Super
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Patent number: 8568559Abstract: A method of making a cellulosic absorbent sheet. A cellulosic web is prepared from an aqueous papermaking furnish. The web is fabric-creped. The fabric-creping step forms a creped web with a drawable reticulum having a plurality of interconnected regions of different local basis weights including at least: (i) a plurality of fiber-enriched regions of a relatively high local basis weight, interconnected by way of (ii) a plurality of lower local basis weight linking regions. The drawable reticulum includes a cohesive fiber matrix capable of increasing in void volume upon drawing. The creped web is dried, while substantially preserving the drawable reticulum, to form a dried web, and the dried web is drawn. The drawing step increases the void volume of the dried web.Type: GrantFiled: May 1, 2012Date of Patent: October 29, 2013Assignee: Georgia-Pacific Consumer Products LPInventors: Frank C. Murray, Greg A. Wendt, Steven L. Edwards, Stephen J. McCullough, Guy H. Super
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Patent number: 8562786Abstract: A method of making a fabric-creped absorbent cellulosic sheet. A papermaking furnish is compactively dewatered to form a nascent web. The nascent web is applied to a translating transfer surface and is fabric-creped from the transfer surface at a consistency of from about 30 to about 60 percent utilizing a creping fabric. The creping fabric travels at a fabric speed that is slower than the speed of the transfer surface. The nascent web is creped from the transfer surface and redistributed on the creping fabric to form a creped web with a drawable reticulum having a plurality of interconnected regions of different local basis weights. The creped web is dried to form a dried web, and the dried web is drawn. The drawing step includes drawing the dried web between a first draw roll and a second draw roll.Type: GrantFiled: May 1, 2012Date of Patent: October 22, 2013Assignee: Georgia-Pacific Consumer Products LPInventors: Frank C. Murray, Greg A. Wendt, Steven L. Edwards, Stephen J. McCullough, Guy H. Super
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Patent number: 8545676Abstract: An absorbent cellulosic sheet includes a papermaking-fiber reticulum. The paper-making-fiber reticulum includes a plurality of fiber-enriched regions that are oriented in a cross-machine direction (CD) of the sheet, and the fiber-enriched regions have (i) a local basis weight and (ii) papermaking fibers that are oriented in the CD of the sheet. The paper-making-fiber reticulum further includes a plurality of linking regions that link corresponding ones of the fiber-enriched regions together in linking directions. The linking regions have (i) basis weights that are lower than those of the corresponding ones of the fiber-enriched regions and (ii) papermaking fibers that are oriented in the linking directions.Type: GrantFiled: February 16, 2012Date of Patent: October 1, 2013Assignee: Georgia-Pacific Consumer Products LPInventors: Guy H. Super, Steven L. Edwards, Stephen J. McCullough, Frank C. Murray
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Patent number: 8524040Abstract: A method of making a belt-creped absorbent cellulosic sheet includes compactively dewatering a papermaking furnish to form a nascent web having an apparently random distribution of papermaking fiber orientation, applying the nascent web having the apparently random distribution of fiber orientation to a translating transfer surface that is moving at a transfer surface speed, belt-creping the web from the transfer surface at a consistency of from about 30% to about 60% utilizing a patterned creping belt, the belt-creping step occurring under pressure in a belt creping nip defined between the transfer surface and the creping belt, the web being creped from the transfer surface and redistributed on the creping belt to form a web with a reticulum having a plurality of interconnected regions of different local basis weights.Type: GrantFiled: February 22, 2012Date of Patent: September 3, 2013Assignee: Georgia-Pacific Consumer Products LPInventors: Steven L. Edwards, Guy H. Super, Stephen J. McCullough, Ronald R. Reeb, Hung Liang Chou, Kang Chang Yeh, John H. Dwiggins, Frank D. Harper
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Patent number: 8422743Abstract: The present invention provides a surface-reading apparatus that includes a subject-flexing mechanism and a surface-reading component. The subject-flexing mechanism causes a subject to flex in one of a convex form and a concave form. The surface-reading component reads a characteristic of a surface condition of the subject that has been flexed by the subject-flexing mechanism. The surface-reading component can includes an optical reading component that optically reads the characteristic of the surface condition of the subject. The optical reading component may be a reflected light-reading component that reads the characteristic of the surface condition of the subject with reflected light or may be a transmitted light-reading component that reads the characteristic of the surface condition of the subject with transmitted light.Type: GrantFiled: May 16, 2007Date of Patent: April 16, 2013Assignee: Fuji Xerox Co., Ltd.Inventors: Tadashi Shimizu, Tetsuya Kimura, Kensuke Ito
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Patent number: 8328985Abstract: A method of making a fabric-creped absorbent cellulosic sheet includes compactively dewatering a papermaking furnish to form a nascent web having an apparently random distribution of papermaking fiber, applying the nascent web having the apparently random fiber distribution to a translating transfer surface that is moving at a transfer surface speed, and fabric-creping the web from the transfer surface at a consistency of from about 30 to about 60 percent utilizing a patterned creping fabric, the fabric-creping step occurring under pressure in a fabric creping nip defined between the transfer surface and the creping fabric, the web being creped from the transfer surface and wherein the creping fabric is adapted to contact the transfer surface and applies pressure to the web against the transfer surface such that the fibers of the web are redistributed on the creping fabric to form a web with a drawable reticulum.Type: GrantFiled: February 22, 2012Date of Patent: December 11, 2012Assignee: Georgia-Pacific Consumer Products LPInventors: Steven L. Edwards, Guy H. Super, Stephen J. McCullough, Ronald R. Reeb, Hung Liang Chou, Kang Chang Yeh, John H. Dwiggins, Frank D. Harper
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Patent number: 8241460Abstract: Web to be formed into wrapping paper is applied with combustion inhibitor and then dried. Water is applied onto the entire surface of the opposite side to the combustion-inhibitor applied side of the web. The web applied with water is dried while pinched between drying and pressing rollers and stretched in a width direction. In this way, unwrinkled high-quality cigarette wrapping paper having a low ignition propensity can be stably and inexpensively manufactured. As the pressing roller, a heat-resistant rubber roller provided in its surface with a soft portion in a helical way is utilized.Type: GrantFiled: December 23, 2011Date of Patent: August 14, 2012Assignee: Japan Tobacco Inc.Inventors: Shinzo Kida, Takafumi Izumiya, Yuzuru Sakuma
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Patent number: 8226797Abstract: A method of making a fabric-creped absorbent cellulosic sheet. A papermaking furnish is compactively dewatered to form a nascent web having an apparently random distribution of papermaking fiber. The dewatered web is applied to a translating transfer surface. The web is fabric-creped from the transfer surface at a consistency of from about 30 to about 60 percent utilizing a creping fabric, under pressure, in a fabric creping nip defined between the transfer surface and the creping fabric. The fabric is traveling a fabric speed that is slower than the speed of the transfer surface. The web is creped from the transfer surface and redistributed on the creping fabric to form a web with a drawable reticulum having a plurality of interconnected regions of different local basis weights. The web is dried and the web is drawn. The step of drawing the web preferentially attenuates the fiber-enriched regions of the web.Type: GrantFiled: March 7, 2011Date of Patent: July 24, 2012Assignee: Georgia-Pacific Consumer Products LPInventors: Frank C. Murray, Greg A. Wendt, Steven L. Edwards, Stephen J. McCullough, Guy H. Super
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Patent number: 7943010Abstract: The invention relates to a method of making surface-sized paper/board. The web to be treated in the method is after surface sizing passed to a treatment process for providing a desired drying shrinkage and/or increase of drying stresses to create thereby a desired effect on the flexural strength and/or bulk of paper/board.Type: GrantFiled: November 1, 2005Date of Patent: May 17, 2011Assignee: Metso Paper, Inc.Inventors: Reijo Pietikäinen, Mika Viljanmaa, Juha Lipponen, Juha Pakarinen, Jussi Jääskeläinen, Maria Lepola
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Patent number: 7927456Abstract: A method of making a cellulosic web includes: forming a nascent web from a papermaking furnish, the nascent web having a generally random distribution of papermaking fiber; b) transferring the web having a generally random distribution of papermaking fiber to a translating transfer surface moving at a first speed; drying the web to a consistency of from about 30 to about 60 percent including compactively dewatering the web prior to or concurrently with transfer to the transfer surface; fabric-creping the web from the transfer surface at a consistency of from about 30 to about 60 percent utilizing a creping fabric with a patterned creping surface, the fabric creping step occurring under pressure in a fabric creping nip defined between the transfer surface and the creping fabric wherein the fabric is traveling at a second speed slower than the speed of said transfer surface, the fabric pattern, nip parameters, velocity delta and web consistency being selected such that the web is creped from the transfer surfacType: GrantFiled: January 25, 2010Date of Patent: April 19, 2011Assignee: Georgia-Pacific Consumer Products LPInventors: Frank C. Murray, Greg A. Wendt, Steven L. Edwards, Stephen J. McCullough, Guy H. Super
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Publication number: 20100319867Abstract: This invention relates to biomimetic electro-active paper actuators which are ultra lightweight, have a large deformation feature, are operated with low power consumption, are remotely driven by microwaves, and have suitable response speed, which are comprised of paper wherein micro fibrils of cellulose are arranged in a predetermined direction, electrodes which are deposited on both sides of the paper, a film rectenna which receives an electric field from outside and converts it into direct power, and a PAD logic circuit (power allocation & distribution) which receives a signal of direct power and converts/controls it into power force.Type: ApplicationFiled: August 26, 2010Publication date: December 23, 2010Applicant: INHA-INDUSTRY PARTNERSHIP INSTITUTEInventor: Jae-Hwan Kim
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Patent number: 7820008Abstract: An absorbent cellulosic sheet having variable local basis weight includes a papermaking-fiber reticulum provided with (i) a plurality of cross-machine direction (CD) extending, fiber-enriched pileated regions of relatively high local basis weight interconnected by (ii) a plurality of elongated densified regions of compressed papermaking fibers. The elongated densified regions have relatively low local basis weight and are generally oriented along the machine direction (MD) of the sheet and have an MD/CD aspect ratio of at least 1.5. The products are most preferably prepared by way of a compactive dewatering/wet crepe process.Type: GrantFiled: January 8, 2009Date of Patent: October 26, 2010Assignee: Georgia-Pacific Consumer Products LPInventors: Steven L. Edwards, Guy H. Super, Stephen J. McCullough, Ronald R. Reeb, Hung Liang Chou, Kang Chang Yeh, John H. Dwiggins, Frank D. Harper
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Patent number: 7799170Abstract: In a paper or board machine drying line after the wire section, during dewatering a web's (W) width is affected in a direction crosswise to the web's traveling direction. Starting from an edge, at least one device (20A, 20B) brings about a force effect of a desired magnitude which is directed all the way to a desired arbitrary crosswise web position in order to modify web characteristics. A device in a paper or board machine line after the wire section has means for processing the web and for dewatering. The paper or board machine line after the wire section further has at least one device (20A; 20B) for directing a force effect at a desired partial area (WS) of the web (W) in the cross machine direction in order to modify the web's characteristics profile in the cross machine direction.Type: GrantFiled: March 9, 2005Date of Patent: September 21, 2010Assignee: Metso Paper, Inc.Inventors: John Shakespeare, Taisto Huhtelin, Pasi Kekko, Markku Lummila, Pekka Pakarinen, Vesa Vuorinen, Matti Kurki, Jaana Pienmäki, Asko Majori, Kari Holopainen
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Patent number: 7789995Abstract: A method of making a fabric-creped absorbent cellulosic sheet comprising: a) compactively dewatering a papermaking furnish to form a nascent web having an apparently random distribution of papermaking fiber; b) applying the dewatered web having the apparently random fiber distribution to a translating transfer surface moving at a first speed; c) fabric-creping the web from the transfer surface at a consistency of from about 30 to about 60 percent utilizing a patterned creping fabric, the creping step occurring under pressure in a fabric creping nip defined between the transfer surface and the creping fabric wherein the fabric is traveling at a second speed slower than the speed of said transfer surface, the fabric pattern, nip parameters, velocity delta and web consistency being selected such that the web is creped from the transfer surface and redistributed on the creping fabric to form a web with a drawable reticulum.Type: GrantFiled: April 18, 2005Date of Patent: September 7, 2010Assignee: Georgia-Pacific Consumer Products, LPInventors: Guy H. Super, Steven L. Edwards, Stephen J. McCullough, Frank C. Murray
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Patent number: 7670457Abstract: A method of making a cellulosic web includes: forming a nascent web from a papermaking furnish, the nascent web having a generally random distribution of papermaking fiber; b) transferring the web having a generally random distribution of papermaking fiber to a translating transfer surface moving at a first speed; drying the web to a consistency of from about 30 to about 60 percent including compactively dewatering the web prior to or concurrently with transfer to the transfer surface; fabric-creping the web from the transfer surface at a consistency of from about 30 to about 60 percent utilizing a creping fabric with a patterned creping surface, the fabric creping step occurring under pressure in a fabric creping nip defined between the transfer surface and the creping fabric wherein the fabric is traveling at a second speed slower than the speed of said transfer surface, the fabric pattern, nip parameters, velocity delta and web consistency being selected such that the web is creped from the transfer surfacType: GrantFiled: September 30, 2008Date of Patent: March 2, 2010Assignee: Georgia-Pacific Consumer Products LLCInventors: Frank C. Murray, Greg A. Wendt, Steven L. Edwards, Stephen J. McCullough, Guy H. Super
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Patent number: 7662255Abstract: A method of making a cellulosic web includes: forming a nascent web from a papermaking furnish, the nascent web having a generally random distribution of papermaking fiber; b) transferring the web having a generally random distribution of papermaking fiber to a translating transfer surface moving at a first speed; drying the web to a consistency of from about 30 to about 60 percent including compactively dewatering the web prior to or concurrently with transfer to the transfer surface; fabric-creping the web from the transfer surface at a consistency of from about 30 to about 60 percent utilizing a creping fabric with a patterned creping surface, the fabric creping step occurring under pressure in a fabric creping nip defined between the transfer surface and the creping fabric wherein the fabric is traveling at a second speed slower than the speed of said transfer surface, the fabric pattern, nip parameters, velocity delta and web consistency being selected such that the web is creped from the transfer surfacType: GrantFiled: September 18, 2007Date of Patent: February 16, 2010Assignee: Georgia-Pacific Consumer Products LLCInventors: Frank C. Murray, Greg A. Wendt, Steven L. Edwards, Stephen J. McCullough, Guy H. Super
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Patent number: 7654519Abstract: An image forming apparatus comprising: an image forming section which forms an image on a sheet material; a curl correcting mechanism which interposes and conveys the sheet material on which the image has been formed by the image forming section. Pressure applied to one surface of the sheet material during an interposing operation and a conveying speed of the sheet material can be changed, the curl correcting mechanism changes the conveying speed from an initial speed vs to a target speed vo higher than the initial speed (vo>vs) while the sheet material is pressed, and the curl correcting mechanism changes the pressure to a high pressure in response to a change of the conveying speed, whereby a curl of the sheet material is reduced.Type: GrantFiled: June 26, 2006Date of Patent: February 2, 2010Assignee: Konica Minolta Business Technologies, Inc.Inventors: Hideo Yamane, Kazuo Sato, Eiji Sugimoto
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Patent number: 7651589Abstract: A method of making a cellulosic web includes: forming a nascent web from a papermaking furnish, the nascent web having a generally random distribution of papermaking fiber; b) transferring the web having a generally random distribution of papermaking fiber to a translating transfer surface moving at a first speed; drying the web to a consistency of from about 30 to about 60 percent including compactively dewatering the web prior to or concurrently with transfer to the transfer surface; fabric-creping the web from the transfer surface at a consistency of from about 30 to about 60 percent utilizing a creping fabric with a patterned creping surface, the fabric creping step occurring under pressure in a fabric creping nip defined between the transfer surface and the creping fabric wherein the fabric is traveling at a second speed slower than the speed of said transfer surface, the fabric pattern, nip parameters, velocity delta and web consistency being selected such that the web is creped from the transfer surfacType: GrantFiled: September 18, 2007Date of Patent: January 26, 2010Assignee: Georgia-Pacific Consumer Products LLCInventors: Frank C. Murray, Greg A. Wendt, Steven L. Edwards, Stephen J. McCullough, Guy H. Super
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Patent number: 7588661Abstract: A process for making absorbent cellulosic paper products such as sheet for towel, tissue and the like, includes compactively dewatering a nascent web followed by wet belt creping the web at an intermediate consistency of anywhere from about 30 to about 60 percent under conditions operative to redistribute the fiber on the belt, which is preferably a fabric. In preferred embodiments, the web is thereafter adhesively applied to a Yankee dryer using a creping adhesive operative to enable high speed transfer of the web of intermediate consistency such as a poly(vinyl alcohol)/polyamide adhesive. An absorbent sheet so prepared from a papermaking furnish exhibits an absorbency of at least about 5 g/g, a CD stretch of at least about 4 percent, and an MD/CD tensile ratio of less than about 1.1, and also exhibits a maximum CD modulus at a CD strain of less than 1 percent and sustains a CD modulus of at least 50 percent of its maximum CD modulus to a CD strain of at least about 4 percent.Type: GrantFiled: June 5, 2008Date of Patent: September 15, 2009Assignee: Georgia-Pacific Consumer Products LPInventors: Steven L. Edwards, Guy H. Super, Stephen J. McCullough, Dean J. Baumgartner, Richard W. Eggen, David P. Duggan, Jeffrey E. Krueger, David W. Lomax, Colin A. Jones
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Patent number: 7494568Abstract: A leader cloth for pulling and installing a belt body onto rolls in a paper machine able to pass between rolls with a small clearance and capable of preventing sag or deflection. At a position near the base portion and a position closer to the apex portion of the leader cloth, stabilizers of a rope or belt-like shape are attached in the width direction to opposite surfaces. Preferably, a sticking fastener is used for the stabilizers The rear face of one piece of the sticking fastener is attached on the surface of the leader cloth by means of stitching to expose sticking face (L-like shaped hooks or loops). The sticking face of the other piece of the sticking fastener is forcefully pressed against the first while applying a tensile force in the width direction to stick the two pieces to each other.Type: GrantFiled: February 13, 2006Date of Patent: February 24, 2009Assignee: Ichikawa Co., Ltd.Inventor: Yasuyuki Ogiwara
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Publication number: 20080295987Abstract: The invention relates to a method of making surface-sized paper/board. The web to be treated in the method is after surface sizing passed to a treatment process for providing a desired drying shrinkage and/or increase of drying stresses to create thereby a desired effect on the flexural strength and/or bulk of paper/board.Type: ApplicationFiled: November 1, 2005Publication date: December 4, 2008Inventors: Reijo Pietikainen, Mika Viljanmaa, Juha Lipponen, Juha Pakarinen, Jussi Jaaskelainen, Maria Lepola
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Patent number: 7459062Abstract: Dryer section for drying a fibrous web supported by at least one drying fabric. The dryer section includes a plurality of heated drying cylinders, a plurality of guide rolls, and a plurality of dampening devices arranged at different locations relative to the fibrous web. Each dampening device applies a quantity of liquid to the fibrous web. In at least in one of the plurality of dampening devices, the quantity of the liquid is adjustable separately in zones transversely with respect to a web running direction. 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: January 24, 2005Date of Patent: December 2, 2008Assignee: Voith Paper Patent GmbHInventors: Roland Mayer, Markus Oechsle, Antje Stein, Frank Wegehaupt
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Publication number: 20080251226Abstract: A xerographic paper and method of forming includes mechanical fiber and a predetermined curl control defined by a split sheet contraction measurement. The split sheet contraction can be between about 0.8 and about 1.2 and between about 0.9 and about 1.1. Split sheet contraction is defined by a relationship of paper shrinkage in a cross-direction to paper shrinkage in a machine-direction and between the two sides of the sheet when split in the Z-direction.Type: ApplicationFiled: April 10, 2007Publication date: October 16, 2008Inventor: Bruce Irwin Katz
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Patent number: 7429310Abstract: A paper or board machine has a fabric (10) that is adapted mobile as well as rolls (11, 11?) arranged to support the fabric (10). The fabric (10) is tensioned by changing the position of one roll (11?) of the rolls (11, 11?). Correspondingly, the fabric (10) is guided by changing the alignment of one roll (11?) of the said rolls (11, 11?). Surprisingly the fabric (10) is both tensioned and guided by changing the alignment and position of only one and the same roll (11?). In addition, the wrap angle of the fabric (10) at this roll (11?) is set higher than 30°.Type: GrantFiled: May 4, 2004Date of Patent: September 30, 2008Assignee: Metso Paper, Inc.Inventors: Pertti K. Heikkilä, Erkki Kärkkäinen, Erkka Nieminen, Samppa J. Salminen, Veli-Matti Vainio
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Patent number: 7419569Abstract: A method of making soft, strong, high bulk tissue is disclosed. The method includes pre-conditioning a wet web by straining the wet web in the cross-machine direction prior to transferring the wet web to a throughdrying fabric. The pre-conditioned web provides improved sheet softness and conforms more readily to the surface contour of the throughdrying fabric, thereby creating greater caliper (bulk) in the resulting dried sheet. The bulk is maintained during a subsequent creping step by maintaining the dried sheet in registration with the throughdrying fabric when the dried sheet is applied to the surface of the creping cylinder.Type: GrantFiled: November 2, 2004Date of Patent: September 2, 2008Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Michael Alan Hermans, Cristina Asensio Mullally, Stephanie Lee Berube, Frank Stephen Hada, Lacey Leigh Hansen, Jeffrey David Mathews
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Patent number: 7229528Abstract: Papermaking processes and more particularly to papermaking processes for foreshortening fibrous structures are provided.Type: GrantFiled: December 17, 2004Date of Patent: June 12, 2007Assignee: The Procter & Gamble CompanyInventors: Kenneth Douglas Vinson, John Allen Manifold, Michael Scott Prodoehl, Jonathan Andrew Ficke, James Edwin Cartledge, Jr.
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Patent number: 7166191Abstract: To provide a curl straightening method for image receiving paper for sublimation dye transfer, which is capable of realizing a smaller roll core diameter of the roll paper. The curl of an image receiving paper 100 for sublimation dye transfer having stiffness from 500 to 2,500 mg in a direction parallel to the printing direction, which is measured according to JIS L1085, JIS L1096, is straightened by allowing the image receiving paper 100 to pass through gaps 4a, 5a of a guide 3 that bends the image receiving paper 100 in a reverse curling direction.Type: GrantFiled: September 29, 2003Date of Patent: January 23, 2007Assignee: Dai Nippon Printing Co., Ltd.Inventors: Taro Suzuki, Masamitsu Suzuki, Tatsuya Kita, Katsuyuki Oshima
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Patent number: 7144476Abstract: This invention relates to electrode substrates for electrochemical cells, particularly low-temperature fuel cells, and processes for their production. Low-cost carbon fiber paper structures are used as precursor for preparation of an all-carbon product that has a high electric conductivity and porosity and can be processed in a continuous reel-to-reel mode. These paper materials are further impregnated and processed to adjust the final product properties. This all-carbon electrode substrate is not brittle thereby avoiding the main disadvantage of the prior art.Type: GrantFiled: April 3, 2003Date of Patent: December 5, 2006Assignee: SGL Carbon AGInventors: Peter Wilde, Michael Maendle, Heiko Leinfelder, Josef Steinhart
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Patent number: 7067039Abstract: A variable representing runnability of a paper web to be manufactured with a paper machine or processed with a finishing apparatus is measured and the speed difference between operational groups of the paper machine and/or the finishing apparatus is adjusted on the basis of the measurement of said variable such that the moisture profile of the paper web is measured substantially along the entire width of the paper web, the minimum and maximum values for moisture are defined on the basis of the moisture profile, a drawing window describing the allowable tension to be directed to the paper web is defined, the lower and upper limits of the drawing window being defined on the basis of the minimum and maximum values for moisture, and the speed difference between the operational groups is adjusted so that the paper web tension is within the range defined by the drawing window.Type: GrantFiled: January 8, 2003Date of Patent: June 27, 2006Assignee: Metso Automation OYInventors: Jari Almi, Pekka Höyssä
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Patent number: 7045037Abstract: Process for cleaning at least one roll of a calender. The process includes guiding a web over a surface of the at least one roll of the calender to be cleaned, and producing a relative speed difference between the surface of the least one roll and a section of the web lying against the surface of the a least one roll. 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: August 8, 2003Date of Patent: May 16, 2006Assignee: Voith Paper Patent GmbHInventor: Hans-Rolf Conrad
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Patent number: 6994898Abstract: A packaging container for a pressurized, liquid food, the packaging container being formed from a packaging laminate which includes at least one core layer of paper or paperboard displaying one major fibre orientation in a first direction thereof. According to the invention, said core layer is pre-strained in a second direction which is substantially at right angles to said first direction, with a view to reducing or eliminating expansion in the finished, filled packaging container during storage thereof. The present invention also encompasses a packaging laminate for the packaging container, as well as a method of producing the packaging container.Type: GrantFiled: March 11, 2002Date of Patent: February 7, 2006Assignee: Tetra Laval Holdings & Finance S.A.Inventors: Håkan Olsson, Jonny Olander
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Patent number: 6973797Abstract: An economizer-equipped refrigeration system and method is provided for simultaneous operation of at least one capacity control valve controlling an independent bypass circuit with operation and variable control of the economizer circuit to permit efficient, flexible, and reliable variable system capacity control, without leakage that sacrifices system peak capacity.Type: GrantFiled: May 10, 2004Date of Patent: December 13, 2005Assignee: York International CorporationInventor: Paul Nemit, Jr.
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Patent number: 6767431Abstract: In the manufacture of a paper or board web (W), the web is slit or cut, the rising/lowering (H) of the edges of a slit/cut gap (C) formed at the slitting/cutting point or the width (L) of the gap is measured by means of a measurement device (21A; 21B; 21C), and the curl of the paper or board web (W) is regulated based on the result of measurement. A paper or board machine line has means for regulating curl in the web (W); means for slitting or cutting the paper or board web and for measuring the rising/lowering (H) of the edges of a slit/cut gap (C) formed at the slitting/cutting point or the width (L) of the slit/cut gap (C) in connection with the manufacture of the web (W) in order to regulate the curl of the web (W) based on the result of measurement.Type: GrantFiled: September 17, 2001Date of Patent: July 27, 2004Assignee: Metso Paper, Inc.Inventors: Antti Komulainen, Kari Juppi
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Patent number: 6740200Abstract: A method for directly forming and finishing a web product is provided. The method includes forming a web on a forming apparatus, continuously transferring the formed web to a conveyor, performing a converting step on the web as the web is continuously supported and advanced on the conveyor, and finishing the web into a product substantially ready for packaging. A system for performing the method is also provided.Type: GrantFiled: December 19, 2001Date of Patent: May 25, 2004Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Robert J. Seymour, John R. Hanson, E. Kent Isom, James L. Baggot, Steven J. Wojcik, Kenneth A. Pigsley, Robert L. Clarke, Randall J. LeValley, Charles H. Goerg
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Patent number: 6716317Abstract: A running web is decurled by controlling web tension as well as the angle of wrap on a decurler roll and a cooperating pivot roll, all without affecting web tension in the downstream web converting process. An upstream brake roll and a downstream pull roll control web tension within the decurler apparatus and independent decurler rolls are provided for removing up-curl and down-curl.Type: GrantFiled: January 24, 2002Date of Patent: April 6, 2004Assignee: Marquip, LLCInventors: Jeffrey U. Gafner, Robert L. Turnquist
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Publication number: 20040026056Abstract: The invention relates to a method and device for the merging and finishing of at least two paper webs (1, 2, 3, 4), controlled in the longitudinal register, which are distinctly different in quality and in finishing steps to be undertaken. The device comprises at least two web-specific processing regions (13A, 13B, 13C), a merging unit (21), a common processing region (22), controlled in the longitudinal register and means for the control of the longitudinal register (14), essentially comprising one longitudinal register sensor per paper web. Markings are placed on the paper web with periodic separations. Longitudinal register sensors (14) recognise said markings and transmit signals to the control unit, which determines possible variations and controls the means for regulation of the longitudinal register in such a way that variations in the longitudinal register are compensated.Type: ApplicationFiled: September 5, 2003Publication date: February 12, 2004Inventor: Joseph Schweiger