Patents by Inventor Reijo Hassinen
Reijo Hassinen 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: 8771473Abstract: A doctor blade for a fiber web machine (10) includes a blade section (11) and a fastening detent section (12). In the cross-sectional plane, the blade section (11) is asymmetric while the fastening detent section (12) is substantially symmetric so that the doctor blade (10) can be installed in two opposite positions for providing two different functions. The invention also relates to a doctor arrangement in a fiber web machine.Type: GrantFiled: September 27, 2012Date of Patent: July 8, 2014Assignee: Valmet Technologies, Inc.Inventors: Reijo Hassinen, Harri Ruotsalainen
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Patent number: 8221589Abstract: In a method for detaching a web threading tail from a moving surface in a fiber web machine, the web threading tail (12) is detached from a moving surface (23) by means of air that flows from a blow-off blow channel (19) included in a blade holder (14). A trailing blow (26) is directed to the web threading tail (12) using air that flows from a trailing blow channel (17) included in the blade holder (14). The blade holder (14) includes a flow surface (32), and the trailing blow (26) is blown to the same direction with or in a small angle relative to the flow surface (32). The invention also relates to a corresponding blade holder and a doctor apparatus for detaching a web threading tail from a moving surface in a fiber web machine.Type: GrantFiled: September 2, 2010Date of Patent: July 17, 2012Assignee: Metson Paper, Inc.Inventors: Tuomo Pekka Auranen, Reijo Hassinen, Veli-Pekka Koljonen, Kari-Matti Laitinen, Pekka Meriläinen, Anssi Toivanen
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Patent number: 8152966Abstract: A doctor apparatus for a web forming machine for doctoring a moving surface with the doctor apparatus (10) has a blade (16), a blade holder (14) to which the blade (16) is adapted, a frame component (12) to which the blade holder (14) is adapted, and a loading element (23) arranged between the frame component (12) and the blade holder (14) for loading the blade holder (14) and further the blade (16). The loading element (23) is tied to both the frame component (12) and the blade holder (14). The invention also relates to a blade holder (14) and a method for a web forming machine for doctoring a moving surface (26).Type: GrantFiled: October 3, 2008Date of Patent: April 10, 2012Assignee: Metso Paper, Inc.Inventors: Hannu Eerikäinen, Reijo Hassinen
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Publication number: 20100325912Abstract: In a method for detaching a web threading tail from a moving surface in a fiber web machine, the web threading tail (12) is detached from a moving surface (23) by means of air that flows from a blow-off blow channel (19) included in a blade holder (14). A trailing blow (26) is directed to the web threading tail (12) using air that flows from a trailing blow channel (17) included in the blade holder (14). The blade holder (14) includes a flow surface (32), and the trailing blow (26) is blown to the same direction with or in a small angle relative to the flow surface (32). The invention also relates to a corresponding blade holder and a doctor apparatus for detaching a web threading tail from a moving surface in a fiber web machine.Type: ApplicationFiled: September 2, 2010Publication date: December 30, 2010Applicant: METSO PAPER, INC.Inventors: Tuomo Pekka Auranen, Reijo Hassinen, Veli-Pekka Koljonen, Kari-Matti Laitinen, Pekka Meriläinen, Anssi Toivanen
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Publication number: 20100215857Abstract: A doctor apparatus for a web forming machine for doctoring a moving surface with the doctor apparatus (10) has a blade (16), a blade holder (14) to which the blade (16) is adapted, a frame component (12) to which the blade holder (14) is adapted, and a loading element (23) arranged between the frame component (12) and the blade holder (14) for loading the blade holder (14) and further the blade (16). The loading element (23) is tied to both the frame component (12) and the blade holder (14). The invention also relates to a blade holder (14) and a method for a web forming machine for doctoring a moving surface (26).Type: ApplicationFiled: October 3, 2008Publication date: August 26, 2010Applicant: METSO PAPER, INC.Inventors: Hannu Eerikäinen, Reijo Hassinen
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Patent number: 7662261Abstract: A beam structure for a web forming machine is arranged to be supported by its end components (10) on the web forming machine. The beam structure includes a casing structure (15) of a thin-sheet material, inside which a stiffener structure (30) is arranged. In addition, the casing structure (15) and the stiffener structure (30) are secured to each other to create a load-bearing beam structure.Type: GrantFiled: June 22, 2005Date of Patent: February 16, 2010Assignee: Metso Paper, Inc.Inventors: Leo Kurkinen, Rami Vanninen, Sami Lumijärvi, Kari Vasenius, Kari Holopainen, Reijo Hassinen, Hannu Nikula, Jukka Samppala
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Publication number: 20070163738Abstract: A beam structure for a web forming machine is arranged to be supported by its end components (10) on the web forming machine. The beam structure includes a casing structure (15) of a thin-sheet material, inside which a stiffener structure (30) is arranged. In addition, the casing structure (15) and the stiffener structure (30) are secured to each other to create a load-bearing beam structure.Type: ApplicationFiled: June 2, 2005Publication date: July 19, 2007Applicant: METSO PAPER, INC.Inventors: Leo Kurkinen, Rami Vanninen, Sami Lumijarvi, Kari Vasenius, Kari Holopainen, Reijo Hassinen, Hannu Nikula, Jukka Samppala
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Patent number: 6942734Abstract: A treatment equipment, which is intended to be installed in connection with a moving surface. The treatment equipment includes a frame and a blade holder formed from composite material as a single piece and connected to the frame. In addition, a blade is fitted to the blade holder, the bevelled edge belonging to which is arranged to be brought into contact with the moving surface by moving the blade holder. In the blade holder, there is also a separate backing blade, which is fitted at one edge into the blade holder, the other edge extending closer than the blade holder to the said bevelled edge.Type: GrantFiled: July 8, 2004Date of Patent: September 13, 2005Assignee: Metso Paper, Inc.Inventors: Iikka Rata, Reijo Hassinen
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Publication number: 20040237884Abstract: A treatment equipment, which is intended to be installed in connection with a moving surface. The treatment equipment includes a frame and a blade holder formed from composite material as a single piece and connected to the frame. In addition, a blade is fitted to the blade holder, the bevelled edge belonging to which is arranged to be brought into contact with the moving surface by moving the blade holder. In the blade holder, there is also a separate backing blade, which is fitted at one edge into the blade holder, the other edge extending closer than the blade holder to the said bevelled edge.Type: ApplicationFiled: July 8, 2004Publication date: December 2, 2004Applicant: Metso Paper. Inc.Inventors: Ilkka Rata, Reijo Hassinen
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Patent number: 6772533Abstract: A multi-cylinder dryer of a paper machine, has at least one drying cylinder (10) and at least one roll (11, 12) located at a different height to the cylinder and at a distance to it in the machine direction. A paper web (14) travels from the drying cylinder (10) to this roll (11, 12). Dry air is brought to the dryer through a beam (13) located in front of the web (14) in the machine direction, the air is directed by means of nozzles (33) in the beam into a throat (21) between the drying cylinder (10) and the web (14) mainly to intensify the drying effect. A doctor (27) keeps the surface of the drying cylinder clean. The beam (13) forms with the roll (12) a smooth, high channel (25), at least on the side of the roll (12), for the passage of the web during a disturbance.Type: GrantFiled: January 30, 2004Date of Patent: August 10, 2004Assignee: Metso Paper, Inc.Inventors: Reijo Hassinen, Jari Jonkka, Markku Lyytinen, Mika Saari
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Publication number: 20040128854Abstract: The invention relates to an arrangement in a multi-cylinder dryer of a paper machine, which arrangement includes at least one drying cylinder (10) and at least one roll (11,12) located at a different height to the cylinder and at a distance to it in the machine direction, the paper web (14) travelling from the drying cylinder (10) to this roll (11, 12). Dry air is brought to the dryer through a beam (13) located in front of the paper web (14) in the machine direction, in which dryer the air is directed by means of nozzles (33) arranged in the beam into a throat (21) between the drying cylinder (10) and the paper web (14) mainly to intensify the drying effect. A doctor (27) is arranged in, or in connection with the said beam (13) to keep the surface of the drying cylinder clean. The beam (13) is arranged to form with the roll (12) a smooth, high channel (25), at least on the side of the roll (12), for the passage of the web during a disturbance.Type: ApplicationFiled: January 30, 2004Publication date: July 8, 2004Inventors: Reijo Hassinen, Jari Jonkka, Markku Lyytinen, Mika Saari
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Patent number: 6547932Abstract: The invention relates to a doctor apparatus (10) in connection with a roll (T) in a paper or board machine. The doctor apparatus (10) comprises a doctor beam (12) of lightweight construction and that the doctor beam (12) is arranged to pivot on bearing means (13a1, 13a2 . . . ) (pivot movement arrow L1). In connection with the doctor beam there are loading members (14a1, 14a2), a relative linear movement taking place between the loading members (14a1, 14a2) and backup surfaces (12′, 15a′) when the doctor beam (12) is being oscillated.Type: GrantFiled: January 16, 2002Date of Patent: April 15, 2003Assignee: Metso Paper, Inc.Inventors: Antti Leinonen, Jouni Heiskanen, Kari Paloniemi, Kari Lamminmäki, Ilkka Rata, Ilkka Eskelinen, Samppa J. Salminen, Aimo Närväinen, Pentti Luoma, Jukka Samppala, Mika Saari, Reijo Hassinen
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Patent number: 6447646Abstract: The invention relates to a doctor assembly in a paper machine, which is intended to clean, e.g., a roll, and which includes a surface against which a doctor blade is set, a blade support for supporting the doctor blade, a frame, a jointed bearing assembly, which supports the doctor blade and is itself supported from the frame, and which is parallel to the doctor blade, and extends essentially over the entire width of the roll, and loading devices between the blade support and the frame for turning the doctor blade in relation to the frame and for pressing the doctor blade against the surface with a selected pressure. Due to the continuous support, there is essentially no deflection in the doctor assembly, when it is attached by its frame directly to the structures of the paper machine.Type: GrantFiled: July 26, 2001Date of Patent: September 10, 2002Assignee: Metso Paper, Inc.Inventors: Reijo Hassinen, Samppa J. Salminen
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Patent number: 6408534Abstract: A steam box includes a elongated steam-distribution chamber, regulator chambers set in a row next to the elongated steam-distribution chamber and covered on one side with a continuous perforated screen. Operating devices distribute the steam from the distribution chamber to each regulator chamber. The steam box is intended to feed steam through the perforated screen to the web, to heat it according to a desired profile. The perforated screen is secured along one long edge to hinge members and along the opposite edge to locking members and is arranged to be able to be opened, to permit access to the regulator chambers.Type: GrantFiled: August 23, 2000Date of Patent: June 25, 2002Assignee: Metso Paper Automation OyInventors: Jukka-Pekka Alen, Reijo Hassinen, Tapio Härkönen, Tommi Luosma, Tuomas N{umlaut over (aa)}tänen, Jukka Samppala