Patents by Inventor Satu Hagfors
Satu Hagfors 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: 11926964Abstract: A press felt for use in paper, cardboard or tissue machines has at least one base fabric (110), and fiber layers (120, 121) attached to the base fabric (110). The press felt fiber layers (120, 121) include thermoplastic elastomer fibers of thermoplastic elastomer originating from bio-based raw material and/or carbon-dioxide based raw material.Type: GrantFiled: September 23, 2022Date of Patent: March 12, 2024Assignee: Valmet Technologies, Inc.Inventors: Kati Mikkonen, Satu Hagfors
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Patent number: 11725344Abstract: A belt (10) for a sleeve roll forms a closed loop and has an inner surface (11), an outer surface (12), an elastic body (15), and a reinforcing structure (30). The reinforcing structure has first yarns (31a) arranged to a first direction (D1) of the belt, and second yarns (32a) arranged to a second direction (D2) of the belt which is parallel or substantially parallel to a travel direction of the belt, and/or perpendicular or substantially perpendicular to the first direction (D1). The belt (10) is configured to stretch elastically more in the second direction (D2) than in the first direction (D1) so that it will return to its original length after forces stretching the belt have been removed. This invention further relates to an arrangement including a belt and a sleeve roll. This invention further relates to a use of a belt.Type: GrantFiled: May 19, 2021Date of Patent: August 15, 2023Assignee: VALMET TECHNOLOGIES OYInventors: Satu Hagfors, Vesa-Matti Riihioja
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Publication number: 20230183890Abstract: According to an example aspect of the present invention, there is provided a yarn (100) comprising: a plurality of monofilaments (101 102, 103, 104) twisted together, and a multifilament or a spun yarn (105) wound around the plurality of monofilaments (101, 102, 103, 104), wherein the multifilament or the spun yarn (105) comprises a bio-based material, a recycled bio-based material or a recycled synthetic material.Type: ApplicationFiled: December 9, 2022Publication date: June 15, 2023Applicant: Valmet Technologies, Inc.Inventors: Kati Mikkonen, Satu Hagfors
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Publication number: 20230094209Abstract: A press felt for use in paper, cardboard or tissue machines has at least one base fabric (110), and fiber layers (120, 121) attached to the base fabric (110). The press felt fiber layers (120, 121) include thermoplastic elastomer fibers of thermoplastic elastomer originating from bio-based raw material and/or carbon-dioxide based raw material.Type: ApplicationFiled: September 23, 2022Publication date: March 30, 2023Applicant: Valmet Technologies, Inc.Inventors: Kati Mikkonen, Satu Hagfors
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Publication number: 20210363698Abstract: A belt (10) for a sleeve roll forms a closed loop and has an inner surface (11), an outer surface (12), an elastic body (15), and a reinforcing structure (30). The reinforcing structure has first yarns (31a) arranged to a first direction (D1) of the belt, and second yarns (32a) arranged to a second direction (D2) of the belt which is parallel or substantially parallel to a travel direction of the belt, and/or perpendicular or substantially perpendicular to the first direction (D1). The belt (10) is configured to stretch elastically more in the second direction (D2) than in the first direction (D1) so that it will return to its original length after forces stretching the belt have been removed. This invention further relates to an arrangement including a belt and a sleeve roll. This invention further relates to a use of a belt.Type: ApplicationFiled: May 19, 2021Publication date: November 25, 2021Applicant: Valmet Technologies OyInventors: Satu Hagfors, Vesa-Matti Riihioja
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Publication number: 20210363697Abstract: A belt (10) for a sleeve roll forms a closed loop and has an inner surface (11) and an outer surface (12). The belt has an elastic body (15) with an outer surface (15a) and a reinforcing structure (30). The reinforcing structure has first yarns (31a) arranged to a first direction (D1), and second yarns (32a) arranged to a second direction (D2). The second yarns (32a) are arranged, at least partially, on the elastic body (15), and/or the second yarns (32a) are arranged to a depth of equal to or less than 2 mm, measured from the outer surface (15a) of the elastic body to a bottom (32a-i) of the second yarn (32a) in a depth direction of the belt. The invention further relates to a use of a belt. The invention further relates to an arrangement comprising a belt and a sleeve roll.Type: ApplicationFiled: May 19, 2021Publication date: November 25, 2021Applicant: Valmet Technologies OyInventors: Satu Hagfors, Vesa-Matti Rilhioja
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Patent number: 8568567Abstract: The invention relates to a shoe press belt comprising polyurethane polymer prepared of a urethane prepolymer containing isocyanate groups and a chain extender, the urethane prepolymer being prepared using 1,4-phenylene-diisocyanate (PPDI) and the chain extender comprising methyl-bis(3-chloro-2,6-diethylaniline) (MCDEA).Type: GrantFiled: December 10, 2009Date of Patent: October 29, 2013Assignee: Metso Fabrics Inc.Inventors: Satu Hagfors, Vesa-Matti Riihioja, Marja Ojanen
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Publication number: 20120132384Abstract: The invention relates to a shoe press belt comprising polyurethane polymer prepared of a urethane prepolymer containing isocyanate groups and a blend of chain extenders, the urethane prepolymer being prepared using 1,4-phenyIene-diisocyanate (PPDI) and the blend of chain extenders comprising methyl-bis(3-chloro-2,6-diethyl-aniline) (MCDEA).Type: ApplicationFiled: December 10, 2009Publication date: May 31, 2012Applicant: METSO FABRICS INC.Inventors: Satu Hagfors, Vesa-Matti Riihioja, Marja Ojanen
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Patent number: 8012055Abstract: The invention relates to a press belt (1) made from an elastomer material and forming a closed loop, the belt having an inner surface (2) and an outer surface (3) and three layers of reinforcement yarns (7?, 5?, 6?) arranged inside the elastomer material. In the invention, an outermost yarn layer (7) is formed by longitudinal and transversely adjacent reinforcement yarns (7?) of the press belt (1), which absorb energy and are restored from deformation with delay in connection with deformation.Type: GrantFiled: February 2, 2005Date of Patent: September 6, 2011Assignee: Tamfelt PMC OyInventors: Satu Hagfors, Olli Jermo, Marita A. Leppimaki, legal representative
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Publication number: 20070243964Abstract: The invention relates to a press belt (1) made from an elastomer material and forming a closed loop, the belt having an inner surface (2) and an outer surface (3) and three layers of reinforcement yarns (7?, 5?, 6?) arranged inside the elastomer material. In the invention, an outermost yarn layer (7) is formed by longitudinal and transversely adjacent reinforcement yarns (7?) of the press belt (1), which absorb energy and are restored from deformation with delay in connection with deformation.Type: ApplicationFiled: February 2, 2005Publication date: October 18, 2007Applicant: TAMFELT OYJ ABPInventors: Satu Hagfors, Olli Jermo, Marita Leppimaki
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Patent number: 6605188Abstract: Transfer belt for a paper machine, comprising a base structure (2) and a fiber batt layer (3) attached to the base structure and facing the fiber web. At least the fiber batt layer side of the belt is provided with a polymer matrix (4) impregnating the fiber batt layer (3). According to the idea of the invention, the transfer belt fiber batt layer comprises at least two fibers with different surface properties, the transfer belt surface facing the fiber web being thus provided with hydrophilic and, correspondingly, hydrophobic areas. The fibers in the fiber batt layer may differ from one another with regard to their polarity, hydrophilicity, electric charge, surface energy, friction properties, degree of fineness or porosity.Type: GrantFiled: March 15, 2002Date of Patent: August 12, 2003Assignee: Tamfelt Oyj ABPInventors: Satu Hagfors, Olli Jermo
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Publication number: 20020137416Abstract: Transfer belt for a paper machine, comprising a base structure (2) and a fiber batt layer (3) attached to the base structure and facing the fiber web. At least the fiber batt layer side of the belt is provided with a polymer matrix (4) impregnating the fiber batt layer (3). According to the idea of the invention, the transfer belt fiber batt layer comprises at least two fibers with different surface properties, the transfer belt surface facing the fiber web being thus provided with hydrophilic and, correspondingly, hydrophobic areas. The fibers in the fiber batt layer may differ from one another with regard to their polarity, hydrophilicity, electric charge, surface energy, friction properties, degree of fineness or porosity.Type: ApplicationFiled: March 15, 2002Publication date: September 26, 2002Applicant: TAMFELT OYJ ABPInventors: Satu Hagfors, Olli Jermo
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Patent number: 6425985Abstract: The invention relates to a method of manufacturing a press felt, according to which method a press felt is manufactured which has a good initial density by means a water soluble material, such as polymer, preferably polyvinyl alcohol (PVAL), applied to the texture of the press felt. Furthermore, the invention relates to a press felt comprising a body (2) and a crill layer (1) arranged thereto. Furthermore, the press felt comprises a portion of a water soluble material, such as water soluble polymer, arranged to dissolve from the texture after the initial density obtained by means of it is no longer needed.Type: GrantFiled: December 8, 2000Date of Patent: July 30, 2002Assignee: Tamfelt OYJ ABPInventors: Satu Hagfors, Jukka Huhtiniemi