Patents by Inventor Per-Olof Malmqvist
Per-Olof Malmqvist 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: 10822189Abstract: The invention relates to a method of threading a fibrous web (W) onto a circular cylindrical object (3, 19) in a reel-up (2) for a paper-making machine (1). The reel-up (2) comprises an endless flexible belt (6) mounted for rotation along a predetermined path of travel. The endless flexible belt (6) is positioned adjacent the circular cylindrical object (3, 19) during winding and the fibrous web (W) residing on the outside surface (8) to engage the circular cylindrical object (3, 19) during winding such that the endless flexible belt (6) is deflected from the predetermined path of travel. When a fibrous web (W) is to be threaded onto the circular cylindrical object (3, 19), the circular cylindrical object (3, 19) is placed at a distance from the endless flexible belt (6) such that the endless flexible belt (6) is no longer deflected from the its path of travel.Type: GrantFiled: March 8, 2018Date of Patent: November 3, 2020Assignee: VALMET AKTIEBOLAGInventors: Per-Olof Malmqvist, Lars Gustafsson, Claes Thelander, Tomas Carlsson
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Publication number: 20200148494Abstract: The invention relates to a method of threading a fibrous web (W) onto a circular cylindrical object (3, 19) in a reel-up (2) for a paper-making machine (1). The reel-up (2) comprises an endless flexible belt (6) mounted for rotation along a predetermined path of travel. The endless flexible belt (6) is positioned adjacent the circular cylindrical object (3, 19) during winding and the fibrous web (W) residing on the outside surface (8) to engage the circular cylindrical object (3, 19) during winding such that the endless flexible belt (6) is deflected from the predetermined path of travel. When a fibrous web (W) is to be threaded onto the circular cylindrical object (3, 19), the circular cylindrical object (3, 19) is placed at a distance from the endless flexible belt (6) such that the endless flexible belt (6) is no longer deflected from the its path of travel.Type: ApplicationFiled: March 8, 2018Publication date: May 14, 2020Inventors: Per-Olof MALMQVIST, Lars GUSTAFSSON, Claes THELANDER, Tomas CARLSSON
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Patent number: 10364113Abstract: The invention relates to an apparatus for winding a paper web. It comprises a rotatably mounted reel spool (3) onto which paper can be wound and an endless flexible belt (5) which is permeable to air and supported by support rolls (12). The flexible belt is positioned adjacent the reel spool (3) to engage the web against the reel spool during winding such that the endless flexible belt is deflected from the path of travel. The flexible belt has a web-contacting side (6). An actuator (9) is arranged to position the reel spool (3) and the flexible belt relative to each other to vary the amount of deflection. The apparatus further comprises a cleaning device (11) with at least one nozzle for blowing air against the web-contacting side of the flexible belt at a point where the flexible belt is not in contact with the paper. The invention also relates to a method of removing dust particles.Type: GrantFiled: February 27, 2017Date of Patent: July 30, 2019Assignee: VALMET AKTIEBOLAGInventors: Per-Olof Malmqvist, Massimiliano Candutti, Tomas Carlsson
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Publication number: 20190077624Abstract: The invention relates to an apparatus for winding a paper web. It comprises a rotatably mounted reel spool (3) onto which paper can be wound and an endless flexible belt (5) which is permeable to air and supported by support rolls (12). The flexible belt is positioned adjacent the reel spool (3) to engage the web against the reel spool during winding such that the endless flexible belt is deflected from the path of travel. The flexible belt has a web-contacting side (6). An actuator (9) is arranged to position the reel spool (3) and the flexible belt relative to each other to vary the amount of deflection. The apparatus further comprises a cleaning device (11) with at least one nozzle for blowing air against the web-contacting side of the flexible belt at a point where the flexible belt is not in contact with the paper. The invention also relates to a method of removing dust particles.Type: ApplicationFiled: February 27, 2017Publication date: March 14, 2019Inventors: Per-Olof Malmqvist, Massimiliano Candutti, Tomas Carlsson
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Patent number: 9969586Abstract: The invention relates to a reel-up 3 for receiving and winding into a roll 4 a paper web W that arrives from a drying cylinder 2 in a paper making machine and which drying cylinder 2 is located upstream of the reel-up 3 and which paper web W follows a path of travel from the drying cylinder 2 to the reel-up 3. The reel-up 3 comprises a rotatably mounted reel spool 5 onto which a paper web W can be wound to create a paper roll 4 of increasing diameter and an endless flexible belt 6 mounted for rotation along a predetermined path of travel such that the flexible belt 6 forms a loop. The flexible belt 6 is positioned adjacent to the reel spool 5 to engage the paper web W against the reel spool 5 during winding. The reel-up 3 is arranged to receive the paper web W at the end of a path of travel of the paper web W which ends in a point of contact P with the flexible belt 6 where the paper web W meets the flexible belt 6 such that a wedge-shaped space WS is formed between the flexible belt 6 and the paper web W.Type: GrantFiled: February 12, 2014Date of Patent: May 15, 2018Assignee: Valmet AktiebolagInventors: Per-Olof Malmqvist, Lars-Erik Oennerloev
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Patent number: 9828201Abstract: The invention relates to a reel-up (1) for receiving and winding into a roll (5) a paper web (W) that arrives from a drying cylinder (2) in a paper making machine. The reel-up (1) comprises a rotatably mounted reel spool (4) onto which a paper web (W) can be wound to create a paper roll (5) of increasing diameter and an endless flexible belt (6) mounted for rotation along a predetermined path of travel such that the flexible belt (6) forms a loop. The flexible belt (6) is positioned adjacent to the reel spool (4) to engage the paper web (W) against the reel spool (4) during winding such that the flexible belt (6) is deflected from the predetermined path of travel when the paper roll (5) starts to build up on the reel spool (4). The flexible belt (6) is air permeable and at least one blow box (7, 8, 9) is arranged inside the loop of the flexible belt (6) such that an underpressure can be generated that draws the paper web (W) against the flexible belt (6).Type: GrantFiled: November 21, 2014Date of Patent: November 28, 2017Assignee: VALMET AKTIEBOLAGInventors: Per-Olof Malmqvist, Massimiliano Candutti, Tomas Carlsson
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Patent number: 9738476Abstract: The invention relates to a reel-up (2) for receiving and winding into a roll (3) a paper web (W) that arrives from a drying cylinder (17) in a paper making machine (1). The reel-up (2) comprises a rotatably mounted reel spool (4) onto which a paper web (W) can be wound to create a paper roll (3) of increasing diameter and an endless flexible belt (5) mounted for rotation along a predetermined path of travel such that the flexible belt (5) forms a loop. The flexible belt (5) is positioned adjacent to the reel spool (4) to engage the paper web (W) against the reel spool (4) during winding such that the flexible belt (5) is deflected from the predetermined path of travel. According to the invention, the endless flexible belt (5) comprises electrically conductive material such that static electricity in the flexible belt (5) is dissipated away from the flexible belt (5). The invention also relates to a paper making machine in which the inventive reel-up is used and to a method of winding a paper web.Type: GrantFiled: April 15, 2014Date of Patent: August 22, 2017Assignee: VALMET AKTIEBOLAGInventors: Ingvar Klerelid, Per-Olof Malmqvist
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Patent number: 9511968Abstract: The invention relates to a reel-up (1) for receiving and winding into a roll (2) a paper web (W) that arrives from a drying cylinder in a paper making machine and for starting a new roll (2) from a tail (19) formed by cutting the paper web (W). The reel-up (1) comprises a rotatably mounted reel spool (3) onto which a paper web (W) can be wound to create a paper roll (2) of increasing diameter; and an endless flexible belt (4) mounted for rotation along a predetermined path of travel such that the flexible belt (4) forms a loop. The flexible belt (4) is positioned adjacent to the reel spool (3) to engage the paper web (W) against the reel spool (3) during winding such that the flexible belt (4) is deflected from the predetermined path of travel by an amount relative to the amount of paper material wound on the reel spool (3).Type: GrantFiled: July 15, 2014Date of Patent: December 6, 2016Inventor: Per-Olof Malmqvist
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Publication number: 20160251187Abstract: The invention relates to a reel-up (1) for receiving and winding into a roll (5) a paper web (W) that arrives from a drying cylinder (2) in a paper making machine. The reel-up (1) comprises a rotatably mounted reel spool (4) onto which a paper web (W) can be wound to create a paper roll (5) of increasing diameter and an endless flexible belt (6) mounted for rotation along a predetermined path of travel such that the flexible belt (6) forms a loop. The flexible belt (6) is positioned adjacent to the reel spool (4) to engage the paper web (W) against the reel spool (4) during winding such that the flexible belt (6) is deflected from the predetermined path of travel when the paper roll (5) starts to build up on the reel spool (4). The flexible belt (6) is air permeable and at least one blow box (7, 8, 9) is arranged inside the loop of the flexible belt (6) such that an underpressure can be generated that draws the paper web (W) against the flexible belt (6).Type: ApplicationFiled: November 21, 2014Publication date: September 1, 2016Inventors: Per-Olof Malmqvist, Massimiliano Candutti, Tomas Carlsson
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Publication number: 20160185548Abstract: The invention relates to a reel-up (1) for receiving and winding into a roll (2) a paper web (W) that arrives from a drying cylinder in a paper making machine and for starting a new roll (2) from a tail (19) formed by cutting the paper web (W). The reel-up (1) comprises a rotatably mounted reel spool (3) onto which a paper web (W) can be wound to create a paper roll (2) of increasing diameter; and an endless flexible belt (4) mounted for rotation along a predetermined path of travel such that the flexible belt (4) forms a loop. The flexible belt (4) is positioned adjacent to the reel spool (3) to engage the paper web (W) against the reel spool (3) during winding such that the flexible belt (4) is deflected from the predetermined path of travel by an amount relative to the amount of paper material wound on the reel spool (3).Type: ApplicationFiled: July 15, 2014Publication date: June 30, 2016Inventor: Per-Olof Malmqvist
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Publication number: 20160031667Abstract: The invention relates to a reel-up (2) for receiving and winding into a roll (3) a paper web (W) that arrives from a drying cylinder (17) in a paper making machine (1). The reel-up (2) comprises a rotatably mounted reel spool (4) onto which a paper web (W) can be wound to create a paper roll (3) of increasing diameter and an endless flexible belt (5) mounted for rotation along a predetermined path of travel such that the flexible belt (5) forms a loop. The flexible belt (5) is positioned adjacent to the reel spool (4) to engage the paper web (W) against the reel spool (4) during winding such that the flexible belt (5) is deflected from the predetermined path of travel. According to the invention, the endless flexible belt (5) comprises electrically conductive material such that static electricity in the flexible belt (5) is dissipated away from the flexible belt (5). The invention also relates to a paper making machine in which the inventive reel-up is used and to a method of winding a paper web.Type: ApplicationFiled: April 15, 2014Publication date: February 4, 2016Inventors: Ingvar Klerelid, Per-Olof Malmqvist
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Publication number: 20160016745Abstract: The invention relates to a reel-up 3 for receiving and winding into a roll 4 a paper web W that arrives from a drying cylinder 2 in a paper making machine and which drying cylinder 2 is located upstream of the reel-up 3 and which paper web W follows a path of travel from the drying cylinder 2 to the reel-up 3. The reel-up 3 comprises a rotatably mounted reel spool 5 onto which a paper web W can be wound to create a paper roll 4 of increasing diameter and an endless flexible belt 6 mounted for rotation along a predetermined path of travel such that the flexible belt 6 forms a loop. The flexible belt 6 is positioned adjacent to the reel spool 5 to engage the paper web W against the reel spool 5 during winding. The reel-up 3 is arranged to receive the paper web W at the end of a path of travel of the paper web W which ends in a point of contact P with the flexible belt 6 where the paper web W meets the flexible belt 6 such that a wedge-shaped space WS is formed between the flexible belt 6 and the paper web W.Type: ApplicationFiled: February 12, 2014Publication date: January 21, 2016Inventors: Per-Olof Malmqvist, Lars-Erik Oennerloev
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Patent number: 8167229Abstract: The present invention relates to a reeling apparatus (1) for fiber web by which fiber web may be wound to successive reels (4). The reeling apparatus has cutting devices (6) for cutting the web during a reel change, the cutting device being provided with at least one cutting head (6.2) disposed movable in a direction essentially transverse to the web direction to cut the web. A contactless web supporting arrangement (7) is been provided in operational connection with the cutting device to maintain the running of the web stable in a controlled manner during the cutting.Type: GrantFiled: April 9, 2008Date of Patent: May 1, 2012Assignee: Metso Paper, Inc.Inventors: Petri Enwald, Teppo Kojo, Per-Olof Malmqvist, Mika-Petteri Lannes, Tatu Markus Kristian Pitkänen, Topi Jussi Tynkkynen
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Publication number: 20100051736Abstract: The present invention relates to a reeling apparatus (1) for fiber web by which fiber web may be wound to successive reels (4). The reeling apparatus has cutting devices (6) for cutting the web during a reel change, the cutting device being provided with at least one cutting head (6.2) disposed movable in a direction essentially transverse to the web direction to cut the web. A contactless web supporting arrangement (7) is been provided in operational connection with the cutting device to maintain the running of the web stable in a controlled manner during the cutting.Type: ApplicationFiled: April 9, 2008Publication date: March 4, 2010Applicant: METSO PAPER, INC.Inventors: Petri Enwald, Teppo Kojo, Per-Olof Malmqvist