Patents by Inventor Heikki Fohr
Heikki Fohr 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: 9260266Abstract: Partial webs are separated in a slitter-winder. The partial webs (WP) are separated by spreading in a spreading device having at least a first, bowed spreader roll (14) fitted at one side of the partial webs (WP) and a second, bowed spreader roll (15) fitted at the opposite side of the partial webs. The partial webs (WP) are guided over the bowed spreader rolls (14, 15) so that the wrap angles (B 14, B15) over the spreader rolls (14, 15) are substantially unequal. The partial webs (WP) are guided to the first spreader roll (14) in a lead-in direction (Dinxy) in the XY-direction and the partial webs are guided from the second spreader roll (15) in a lead-out direction (Doutxy) in the XY-direction such that the lead-in direction (Dinxy) and the lead-out direction are substantially divergent.Type: GrantFiled: August 26, 2013Date of Patent: February 16, 2016Assignee: VALMET TECHNOLOGIES, INC.Inventors: Heikki Föhr, Tommi Vuoristo
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Patent number: 9169095Abstract: A method and apparatus for winding fiber webs, particularly paper and board webs, in which partial web rolls (R1, R2) are wound in a winding device having at least two winding stations (21, 22), where partial webs (W1, W2) are guided to rolls (R1, R2) via a nip between a winding roll(s) (12, 41, 42) and the partial web rolls (R1, R2). The partial webs (W1, W2) are guided on the surface of the winding roll(s) (12, 41, 42) before entering the nips creating a wrap angle (A1, A2) on the winding drum(s) (12, 41, 42). The wrap angles (A1, A2) of the partial webs onto the surface of the winding roll (12, 41, 42) is at least 120° and the wrap angle ratio, i.e. the relation of the larger wrap angle to the smaller wrap angle, is at least 1 and at most 1.25.Type: GrantFiled: April 15, 2013Date of Patent: October 27, 2015Assignee: Valmet Technologies, Inc.Inventors: Jaakko Haapanen, Henry Virta, Heikki Föhr
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Publication number: 20140061358Abstract: Partial webs are separated in a slitter-winder. The partial webs (WP) are separated by spreading in a spreading device having at least a first, bowed spreader roll (14) fitted at one side of the partial webs (WP) and a second, bowed spreader roll (15) fitted at the opposite side of the partial webs. The partial webs (WP) are guided over the bowed spreader rolls (14, 15) so that the wrap angles (B 14, B15) over the spreader rolls (14, 15) are substantially unequal. The partial webs (WP) are guided to the first spreader roll (14) in a lead-in direction (Dinxy) in the XY-direction and the partial webs are guided from the second spreader roll (15) in a lead-out direction (Doutxy) in the XY-direction such that the lead-in direction (Dinxy) and the lead-out direction are substantially divergent.Type: ApplicationFiled: August 26, 2013Publication date: March 6, 2014Applicant: METSO PAPER, INC.Inventors: Heikki Föhr, Tommi Vuoristo
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Publication number: 20130270383Abstract: A method and apparatus for winding fiber webs, particularly paper and board webs, in which partial web rolls (R1, R2) are wound in a winding device having at least two winding stations (21, 22), where partial webs (W1, W2) are guided to rolls (R1, R2) via a nip between a winding roll(s) (12, 41, 42) and the partial web rolls (R1, R2). The partial webs (W1, W2) are guided on the surface of the winding roll(s) (12, 41, 42) before entering the nips creating a wrap angle (A1, A2) on the winding drum(s) (12, 41, 42). The wrap angles (A1, A2) of the partial webs onto the surface of the winding roll (12, 41, 42) is at least 120° and the wrap angle ratio, i.e. the relation of the larger wrap angle to the smaller wrap angle, is at least 1 and at most 1.25.Type: ApplicationFiled: April 15, 2013Publication date: October 17, 2013Applicant: METSO PAPER, INC.Inventors: Jaakko Haapanen, Henry Virta, Heikki Föhr
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Patent number: 8146397Abstract: A support arrangement (10) of a roll of a fibrous-web machine, has a first frame part (12) in which the roll (20) of the fibrous-web machine is supportable from its end when in use and a second frame part (22) in which the first frame part (12) is fastened by means of an elastic fastening. The arrangement has a motion direction control arrangement (34) for controlling the direction of the motion allowed by the elastic fastening in a way determined by the direction control arrangement (34).Type: GrantFiled: June 20, 2008Date of Patent: April 3, 2012Assignee: Metso Paper, Inc.Inventors: Kimmo Penttilä{umlaut over ( )}, Marko Jorkama, Heikki Föhr
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Publication number: 20080315057Abstract: A support arrangement (10) of a roll of a fibrous-web machine, has a first frame part (12) in which the roll (20) of the fibrous-web machine is supportable from its end when in use and a second frame part (22) in which the first frame part (12) is fastened by means of an elastic fastening. The arrangement has a motion direction control arrangement (34) for controlling the direction of the motion allowed by the elastic fastening in a way determined by the direction control arrangement (34).Type: ApplicationFiled: June 20, 2008Publication date: December 25, 2008Applicant: METSO PAPER, INC.Inventors: Kimmo Penttilä, Marko Jorkama, Heikki Fohr
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Patent number: 7011267Abstract: In paper winding, separate rolls are formed side by side around roll cores (10a, 10b) placed one after the other while supported by support members. The cores are pressed at their ends against one another by core chucks (20) arranged in connection with the free ends of the outermost roll cores (10a, 10b). The roll cores (10a, 10b) are placed in a desired position and subjected to a desired compression force by the core chucks (20), the length of the row of roll cores (10a, 10b) is determined, and the compression force of at least one core chuck (20) is regulated during winding when the length of the roll core row changes to keep the compression force and/or the length of the roll core row within desired limits.Type: GrantFiled: December 4, 2001Date of Patent: March 14, 2006Assignee: Metso Paper, Inc.Inventors: Pauli Koutonen, Heikki Föhr, Markku Järvensivu
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Publication number: 20050172777Abstract: A blade (10) for use in the slitting of a paper or board web has a hub part (11) and a blade part (15). The blade part (15) is releasably secured by means of securing members (12, 13) to the hub part (12). The securing members (12, 13) are formed so as to distribute and/or maintain the axial load enabling the joint to withstand high circumferential speeds.Type: ApplicationFiled: May 26, 2003Publication date: August 11, 2005Inventors: Harry Olander, Heikki Fohr, Jari Liimatainen, Pekka Siitonen, Mikko Kumpula
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Patent number: 6926224Abstract: A web is wound onto a core (21) while supported by winding drums (11, 12). The web is cut by a cutting device (19), and a finished web roll (10) is removed by a transfer device (16). A new core (21) is moved to a space between the winding drums (11, 12), and the winding is stopped to remove the finished roll (10) and to start a new roll. The core is moved onto support of one winding drum and a support member (22) and held in place by the support member (22) until the movable winding drum (11, 12) has been moved to the starting position of winding.Type: GrantFiled: June 6, 2002Date of Patent: August 9, 2005Assignee: Metso Paper, Inc.Inventors: Heikki Föhr, Markku Järvensivu, Pauli Koutonen
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Patent number: 6817564Abstract: When the setting of a web slitter winder blades (41, 42) is changed during slitting in order to slit component webs (Wo) of different widths, the width of the edge trimming formed changes and an untrimmed neck remains between the edge trimmings of different widths. A cutting apparatus (50) makes a cut between the slitting line of an edge trimming according to an old blade setting and the slitting line of an edge trimming according to a new blade setting controlled by a control system (59).Type: GrantFiled: February 24, 2003Date of Patent: November 16, 2004Assignee: Metso Paper, Inc.Inventors: Markku Järvensivu, Heikki Föhr
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Publication number: 20030155461Abstract: When the setting of a web slitter winder blades (41, 42) is changed during slitting in order to slit component webs (WO) of different widths, the width of the edge trimming formed changes and an untrimmed neck remains between the edge trimmings of different widths. A cutting apparatus (50) makes a cut between the slitting line of an edge trimming according to an old blade setting and the slitting line of an edge trimming according to a new blade setting controlled by a control system (59).Type: ApplicationFiled: February 24, 2003Publication date: August 21, 2003Inventors: Markku Jarvensivu, Heikki Fohr