Patents Assigned to Runtech Systems Oy
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Patent number: 11634866Abstract: An apparatus for measuring dewatering in the wet end of a paper machine includes a measuring receptacle functioning at normal air pressure, in which receptacle the amount of the water of the negatively-pressurized dewatering points of the paper machine is measured by means of a pressure-difference transmitter and of a measuring weir.Type: GrantFiled: January 25, 2018Date of Patent: April 25, 2023Assignee: Runtech Systems OYInventor: Juha Karvinen
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Patent number: 11535474Abstract: An apparatus for transporting a tail end in a fiber web machine from one structural section to another includes nozzles for guiding the tail end on the guide plate by means of an air flow such that the blown air is brought onto a guide plate shaped into a curve in such a way that the air flow of the blown air guides the tail end onto the curved guide plate by means of a bump functioning as an aerodynamic profile formed in the curved guide plate.Type: GrantFiled: March 22, 2018Date of Patent: December 27, 2022Assignee: Runtech Systems OYInventors: Kimma Loippo, Juhani Lehto, Markku Kajander, Mertsi Lindeman
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Publication number: 20170022021Abstract: The invention relates to a method and apparatus for passing a web tail being threaded from one paper machine section to another by way of guiding the tail with the help of an air jet from a transfer plate. An essential feature of the invention is to employ a construction rising from the surface of the transfer plate to a height with the shape of a linear ramp or a droplet for guiding the web tail in its travel direction thereby minimizing the contact area between the web tail and the transfer plate.Type: ApplicationFiled: April 10, 2015Publication date: January 26, 2017Applicant: RUNTECH SYSTEMS OYInventors: Kimmo LOIPPO, Antti ELO
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Patent number: 9492970Abstract: The invention relates to a method for manufacturing the impeller of a centrifugal, that is, a radial compressor or radial blower, said impeller being mounted directly on the shaft of an electric motor. An essential feature of the invention is that the composite material impeller is made using an RTM process, wherein the RTM mold has a core and accurately trimmed fabrics placed therein in such a manner that the fabric layers, or preforms, are pulled onto the core thus achieving a maximally optimized use of materials in the structure.Type: GrantFiled: February 25, 2010Date of Patent: November 15, 2016Assignee: RUNTECH SYSTEMS OYInventor: Juha Karvinen
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Patent number: 9051685Abstract: A method for reducing the water and energy consumption of a paper machine with the help of a vacuum system and optimization of web solids content. On the paper machine wire section, water is removed with the help of a hybrid vacuum system serving first the vacuum locations needing a lower vacuum level and then those requiring a higher vacuum level in such fashion that the hybrid vacuum system removes water on different sections of the paper machine at the vacuum levels rendering the individually maximized energy efficiency. Additionally the solids content on the wire section is optimized with the help of an unfelted and smooth press roll adapted above the wire suction roll.Type: GrantFiled: October 5, 2012Date of Patent: June 9, 2015Assignee: RUNTECH SYSTEMS OYInventors: Juha Karvinen, Kimmo Loippo
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Patent number: 8961149Abstract: A method for controlling an automatic stall-prevention of a rotation-speed-regulated centrifugal fan. A control automatics is controlled by an automation system of the process wherein, the control automatics stalling is detected from a function of the electric current, voltage and frequency going to the motor of the centrifugal fan.Type: GrantFiled: October 7, 2013Date of Patent: February 24, 2015Assignee: Runtech Systems OyInventors: Jouni Mussalo, Mauri Vuohelainen
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Publication number: 20140231038Abstract: A method for reducing the water and energy consumption of a paper machine with the help of a vacuum system and optimization of web solids content. On the paper machine wire section, water is removed with the help of a hybrid vacuum system serving first the vacuum locations needing a lower vacuum level and then those requiring a higher vacuum level in such a fashion that the hybrid vacuum system removes water on different sections of the paper machine at the vacuum levels rendering the Individually maximized energy efficiency. Additionally the solids content on the wire section is optimized with fee help of an unfelted and smooth press roll adapted above the wire suction roll.Type: ApplicationFiled: October 5, 2012Publication date: August 21, 2014Applicant: Runtech Systems OYInventors: Juha Karvinen, Kimmo Loippo
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Publication number: 20140037426Abstract: A method for controlling an automatic stall-prevention of a rotation-speed-regulated centrifugal fan. A control automatics is controlled by an automation system of the process wherein, the control automatics stalling is detected from a function of the electric current, voltage and frequency going to the motor of the centrifugal fan.Type: ApplicationFiled: October 7, 2013Publication date: February 6, 2014Applicant: RUNTECH SYSTEMS OYInventors: Jouni MUSSALO, Mauri VUOHELAINEN
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Patent number: 8206491Abstract: An apparatus is provided for implementing water separation in the vacuum system of a paper machine. The apparatus includes a guiding baffle structure connected to an inlet pipe and a water trap vessel, and a droplet separation cell mounted at the mouth of an outlet pipe.Type: GrantFiled: May 20, 2010Date of Patent: June 26, 2012Assignee: Runtech Systems OyInventor: Juha Karvinen
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Patent number: 8163135Abstract: A paper machine doctor assembly includes a doctor blade and a blade holder holding the same and a support member mounted on the paper machine frame. An essential feature of the assembly is that a separate pivot mount is provided between the blade holder and the support member, the separate pivot mount enabling the blade holder and the pivot mount to be disconnected from the support member by pulling the pivot mount outwardly and away from the support member.Type: GrantFiled: March 30, 2010Date of Patent: April 24, 2012Assignee: Runtech Systems OyInventor: Kimmo Loippo
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Publication number: 20120014777Abstract: Method for controlling an automatic stall-prevention of a rotation-speed-regulated centrifugal fan. What is essential in the invention is that the control automatics is controlled by means of the automation system of the process, in which control automatics stalling is detected from a function of the electric current, voltage and frequency going to the motor of the centrifugal fan.Type: ApplicationFiled: August 5, 2010Publication date: January 19, 2012Applicant: Runtech Systems OyInventors: Jouni MUSSALO, Mauri Vuohelainen
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Publication number: 20110247497Abstract: The invention relates to an apparatus for implementing water separation in the vacuum system of a paper machine. The apparatus is characterized by comprising a guiding baffle structure (1) connect to an inlet pipe (8) and a water trap vessel (2) as well as a droplet separation cell (4) mounted at the mouth of an outlet pipe (9).Type: ApplicationFiled: May 20, 2010Publication date: October 13, 2011Applicant: RUNTECH SYSTEMS OYInventor: Juha KARVINEN
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Publication number: 20110214829Abstract: Method for compensating for uneven shrinkage in a paper web in the press and drying sections of a paper machine, in which there is at least one open draw. In the method, a flow guide/guides are used in the head box, by means of which the machine direction orientation tendency of the fibres is reduced in the edge areas of the web and the angle of detaching of the web from the centre roll is adjusted, by directing onto the web an air jet that is located in the cross direction and the pressure of which can be adjusted in the said direction.Type: ApplicationFiled: August 18, 2008Publication date: September 8, 2011Applicant: Runtech Systems OyInventors: Kimmo Loippo, Michael Odell
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Publication number: 20110173812Abstract: The invention relates to a method for manufacturing the impeller of a centrifugal, that is, a radial compressor or radial blower, said impeller being mounted directly on the shaft of an electric motor. An essential feature of the invention is that the composite material impeller is made using an RTM process, wherein the RTM mold has a core and accurately trimmed fabrics placed therein in such a manner that the fabric layers, or preforms, are pulled onto the core thus achieving a maximally optimized use of materials in the structure.Type: ApplicationFiled: February 25, 2010Publication date: July 21, 2011Applicant: RUNTECH SYSTEMS OYInventor: Juha KARVINEN
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Publication number: 20100243189Abstract: The invention relates to a paper machine doctor assembly comprising a doctor blade (1) and a blade holder (2) holding the same and a support member (3) mounted on the paper machine frame. The essential feature of the invention is that between the blade holder (2) and the member (3) is provided a separate pivot mount (4) adapted onto the member (3) so that it can be dismantled by pulling it outwardly.Type: ApplicationFiled: March 30, 2010Publication date: September 30, 2010Applicant: RUNTECH SYSTEMS OYInventor: Kimmo LOIPPO
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Patent number: 7707800Abstract: A beam construction, particularly a so-called doctor beam, for use mainly in pulp and paper mills to carry blade holders (7) intended to hold doctor blades. The beam (1) is a composite-construction hollow beam, which also includes at least one composite construction pre-tensioning rod (9, 10, 12). The construction has an essentially triangular cross-section.Type: GrantFiled: August 25, 2005Date of Patent: May 4, 2010Assignee: Runtech Systems OyInventor: Kari Kannisto
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Publication number: 20080163997Abstract: A spring doctor, particularly for use for cleaning the surface of rolls (2), used in the and including a blade (8) that is essentially the width of the roll (2) being cleaned, and which is attached to a blade holder (1). In the device, there are operating means (for example, 6, 7) for creating the desired pressure of the doctor blade against the roll. Longitudinally, the blade (8) is curved for at least part of its length.Type: ApplicationFiled: January 28, 2005Publication date: July 10, 2008Applicant: RUNTECH SYSTEMS OYInventor: Kimmo Loippo
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Patent number: 6491791Abstract: A method is disclosed for cleaning roll surfaces on a paper-making machine or the like, particularly the grooves and drilled perforations of the rolls, and/or supported fabrics and/or for improving water drainage therein. According to the method, the properties of a moving roll surface (1) and/or fabric (6), as well as their behavior during a run, are affected by means of a gas mixture (5) in a manner, wherein the flow of the gas mixture is caused to be directed substantially toward the roll surface (1), grooves (2) made on the roll shell, perforations (2) of the roll shell and/or the fabric (6) or, alternatively, at least to a close proximity of at least one of the foregoing objects. The invention also relates to an apparatus suited for implementing the method.Type: GrantFiled: March 26, 2001Date of Patent: December 10, 2002Assignee: Runtech Systems OyInventor: Kimmo Loippo
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Patent number: 6485610Abstract: The solution of the invention relates to a method and apparatus for the treatment of a paper web in a paper or cardboard machine. The essential feature of the solution of the invention is that a moving material web (1), its properties and/or its behavior are influenced by the use of a gas (2) by causing the gas (2) to flow substantially toward the material web or to its immediate vicinity.Type: GrantFiled: May 24, 2000Date of Patent: November 26, 2002Assignee: Runtech Systems OyInventor: Kimmo Loippo
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Patent number: 6006443Abstract: The present invention is related to a method of treating a material web in a paper or paperboard machine, in which method the moving web is treated with a gas, particularly with steam. At least one supplementary treatment agent is dosed into the stream of said gas and effected to travel along with said gas toward said material web. The invention also concerns an apparatus suited to implement the method.Type: GrantFiled: February 27, 1998Date of Patent: December 28, 1999Assignee: Runtech Systems OyInventor: Juha Karvinen