Patents by Inventor Markku Salo
Markku Salo 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: 7678234Abstract: A dewatering arrangement in the press section of a web-forming machine having a press suction roll (10) and a press fabric (13) arranged to run via the press suction roll (10). The dewatering arrangement has a saveall (15), which is installed in conjunction with the press suction roll (10), and drainage facilities (18) for removing the collected water from the saveall (15). The saveall (15) has a concave guide surface (19) which in the cross direction is located on a partial distance of the circumference of the press suction roll (10) and at a distance from the surface of the press suction roll (10) in order to accomplish a vacuum effect and to hence remove water from the press suction roll (10).Type: GrantFiled: October 18, 2006Date of Patent: March 16, 2010Assignee: Metso Paper, Inc.Inventors: Risto Haiko, Erkki Hietamäki, Mikko Kauppinen, Reijo Koivuranta, Kauno Kujala, Pekka Petrilä, Timo Pirinen, Esa Rajala, Markku Salo, Sampo Vörgren
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Publication number: 20070089848Abstract: A dewatering arrangement in the press section of a web-forming machine having a press suction roll (10) and a press fabric (13) arranged to run via the press suction roll (10). The dewatering arrangement has a saveall (15), which is installed in conjunction with the press suction roll (10), and drainage facilities (18) for removing the collected water from the saveall (15). The saveall (15) has a concave guide surface (19) which in the cross direction is located on a partial distance of the circumference of the press suction roll (10) and at a distance from the surface of the press suction roll (10) in order to accomplish a vacuum effect and to hence remove water from the press suction roll (10).Type: ApplicationFiled: October 18, 2006Publication date: April 26, 2007Applicant: Metso Paper, Inc.Inventors: Risto Haiko, Erkki Hietamaki, Mikko Kauppinen, Reijo Koivuranta, Kauno Kujala, Pekka Petrila, Timo Pirinen, Esa Rajala, Markku Salo, Sampo Vorgren
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Patent number: 6827778Abstract: The invention relates to an arrangement for feeding a treatment substance to an application device used to treat a moving paper or board web, which arrangement includes at least one application chamber (1) extending over the width of the web, to which the treatment substance can be fed. The treatment substance feed devices include at least one elongated feed chamber (3) extending over the width of the application device, to which treatment substance can be fed from the inlet side (8) of the chamber (3), and at least one connection (20) for leading the treatment substance from the feed chamber to the application chamber (1). For feeding the treatment substance between the feed chambers, there is at least one flow route to connect the end (19) of the feed chamber (3) opposite the inlet side (8) and the end of the application device on the side of the inlet side of the first feed chamber (3), through the flow route.Type: GrantFiled: October 8, 2002Date of Patent: December 7, 2004Assignee: Metso Paper, Inc.Inventors: Markku Lummila, Erikki Autio, Markku Salo
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Publication number: 20030136339Abstract: The invention relates to an arrangement for feeding a treatment substance to an application device used to treat a moving paper or board web, which arrangement includes at least one application chamber (1) extending over the width of the web, to which the treatment substance can be fed. The treatment substance feed devices include at least one elongated feed chamber (3) extending over the width of the application device, to which treatment substance can be fed from the inlet side (8) of the chamber (3), and at least one connection (20) for leading the treatment substance from the feed chamber to the application chamber (1). For feeding the treatment substance between the feed chambers, there is at least one flow route to connect the end (19) of the feed chamber (3) opposite the inlet side (8) and the end of the application device on the side of the inlet side of the first feed chamber (3), through the flow route.Type: ApplicationFiled: October 8, 2002Publication date: July 24, 2003Inventors: Markku Lummila, Erkki Autio, Markku Salo
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Patent number: 5915297Abstract: An apparatus for reducing or preventing vibrations of a roll set of a paper making apparatus, wherein the roll set comprises at least two rolls of which at least one is a soft roll coated with a compressible coating and comprising a temperature control system. The natural vibrational frequency of the roll set is changed during the operation of the apparatus by changing the temperature of the coating of the at least one soft roll. The changing of the natural frequency prevents resonance on a natural frequency of the roll set.Type: GrantFiled: December 10, 1997Date of Patent: June 29, 1999Assignee: Valmet CorporationInventors: Esa Lehtovirta, Jorma Kolio, Markku Salo, Kari Luostarinen
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Patent number: 5904775Abstract: An applicator device for applying a coating agent onto a moving base, such as a paper or board web, onto the face of a film press roll, or equivalent, and a method for correcting for distortions arising from thermal strains in such an applicator device. The applicator device includes an applicator beam arranged in a direction transverse to a running direction of the moving base, a coating-agent feed pipe arranged in the transverse direction and mounted on the applicator beam, and coating members mounted on the applicator beam for applying a coating onto the moving base and spreading and smoothing the coating agent onto the moving base. The coating-agent feed pipe and the coating members are constructed as a single unit. The device also includes mounting members for mounting the single unit of the coating-agent feed pipe and the coating members on the applicator beam.Type: GrantFiled: December 23, 1996Date of Patent: May 18, 1999Assignee: Valmet CorporationInventors: Markku Salo, Jorma Ramstedt, Jorma Kolio
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Patent number: 5768985Abstract: A method for reducing or preventing vibrations of a roll set of a paper making apparatus, wherein the roll set comprises at least two rolls of which at least one is a soft roll coated with a compressible coating and comprising a temperature control system. The natural vibrational frequency of the roll set is changed during the operation of the apparatus by changing the temperature of the coating of at least one soft roll. The changing of the natural frequency prevents resonance on a natural frequency of the roll set.Type: GrantFiled: December 11, 1995Date of Patent: June 23, 1998Assignee: Valmet CorporationInventors: Esa Lehtovirta, Jorma Kolio, Markku Salo, Kari Luostarinen
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Patent number: 5605573Abstract: The invention relates to a holder for a cradle of a coating bar or for a coating blade in a coating unit and a method for securing the cradle of the coating bar or the coating blade in a coating device. The coating bar or blade are arranged to spread and smooth a size film or a corresponding layer of coating agent onto a face of a moving base to be coated by loading the coating bar or blade against the moving base. The moving base may be a roll of a size press or the web passed over a back-up roll. The cradle of the coating bar or the coating blade is mounted in a holder arranged in an application beam transverse to the machine direction. A journalling duct transverse to the machine direction is formed in the frame of the holder. An oblong member is arranged rotatably in the journalling duct and comprises a cam-like projection of eccentric section. The member can be rotated for the purpose of fixing the cradle of the coating bar or the coating blade in its place.Type: GrantFiled: March 18, 1993Date of Patent: February 25, 1997Assignee: Valmet CorporationInventors: Markku Salo, Tauno Orava
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Patent number: 5431731Abstract: An applicator beam in a size press comprising a nip formed by a pair of press rolls between which a paper or board web is passed. The press rolls are provided with coating devices for spreading films of coating agent onto the faces of the rolls. The coating devices are mounted on applicator beams placed in the transverse direction of the machine. The applicator beams are linked pivotally on the frame of the size press or on the loading arms of a displaceable roll by a pivot shaft arranged transverse to the machine direction. The applicator beams are also provided with pivot cylinders by which the applicator beams can be pivoted between a closed position, i.e. the operating position, and an opened position, i.e. the service position.Type: GrantFiled: April 9, 1993Date of Patent: July 11, 1995Assignee: Valmet Paper Machinery, Inc.Inventors: Markku Salo, Ari Rousu, Paavo Ruuska
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Patent number: 5401315Abstract: A device in a size press comprising a nip formed by press rolls through which a paper or board web is passed. The press rolls are provided with coating devices for spreading films of a coating agent onto faces of the press rolls. The coating devices are mounted on applicator beams arranged transverse to the machine direction. The applicator beams are supported pivotally on the frame of the size press or on the loading arms of a displaceable press roll and are provided with pivot cylinders by which the applicator beams can be opened and closed in relation to the rolls corresponding to them. The applicator beams are further provided with catches supported directly or indirectly on bearings of the corresponding press rolls when the applicator beams are being closed by the pivot cylinders. At least one of the applicator beams of the size press is provided with catches at each end of the applicator beam and positioned in accordance with the position of the applicator beam.Type: GrantFiled: April 9, 1993Date of Patent: March 28, 1995Assignee: Valmet Paper Machinery, Inc.Inventors: Markku Salo, Ari Rousu