Patents by Inventor Vesa-Matti Riihioja
Vesa-Matti Riihioja 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).
-
Patent number: 11952452Abstract: A process produces a body of a belt (10) for a paper, board, pulp or tissue machine, the body having an inner surface and an outer surface. The process includes producing a modified polyurethane by adding a polydialkylsiloxane having at least one functional group to a manufacturing process of a polyurethane in order to obtain the modified polyurethane, which modified polyurethane is a polyurethane matrix having a covalent bond with the polydialkylsiloxane, and forming the body of the belt, wherein the body is the modified polyurethane. The belt (10) is for a paper, board, pulp, or tissue machine, or for a shoe press and a sleeve roll.Type: GrantFiled: September 29, 2022Date of Patent: April 9, 2024Assignee: Valmet Technologies OyInventor: Vesa-Matti Riihioja
-
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
-
Publication number: 20230250583Abstract: This invention relates to a method for manufacturing a belt for a paper, board, pulp or tissue machine, the belt (5) comprising a body (14), and a reinforcing structure (31, 32), the belt (5) having an inner surface (10) and an outer surface (11), wherein the method comprises: applying a coating comprising a solid lubricant on to a casting cylinder (18), drying the coating comprising the solid lubricant, thereby obtaining solid lubricant particles (29) on the casting cylinder (18), casting a body material (21) onto the casting cylinder (18) in order to form the body (14) on the solid lubricant particles, and providing the reinforcement structure (31, 32) into the belt, thereby obtaining the belt in which the solid lubricant particles forms at least part of the inner surface of the belt. This invention relates to an arrangement for manufacturing a belt for a paper, board, pulp or tissue machine. The invention further relates to a belt for a paper, board, pulp, or tissue machine.Type: ApplicationFiled: February 2, 2023Publication date: August 10, 2023Applicant: Valmet Technologies OyInventor: Vesa-Matti Riihioja
-
Publication number: 20230097651Abstract: A process produces a body of a belt (10) for a paper, board, pulp or tissue machine, the body having an inner surface and an outer surface. The process includes producing a modified polyurethane by adding a polydialkylsiloxane having at least one functional group to a manufacturing process of a polyurethane in order to obtain the modified polyurethane, which modified polyurethane is a polyurethane matrix having a covalent bond with the polydialkylsiloxane, and forming the body of the belt, wherein the body is the modified polyurethane. The belt (10) is for a paper, board, pulp, or tissue machine, or for a shoe press and a sleeve roll.Type: ApplicationFiled: September 29, 2022Publication date: March 30, 2023Applicant: Valmet Technologies OyInventor: Vesa-Matti Riihioja
-
Patent number: 11377795Abstract: A shoe press belt (10) for a shoe press has an inner surface (11), an outer surface (12), an elastomer body and a support structure (20, 21, 22, 23) for the elastomer body. A plurality of parallel dewatering grooves (50, 50a, 50b) are on the outer surface (12) of the shoe press belt (10), with a ridges (53) provided between two adjacent dewatering grooves (50a, 50b). The dewatering grooves (50, 50a, 50b) have a first wall (60), a second wall (70), and a bottom (80) therebetween. At least the first wall (60) of the dewatering groove (50, 50a, 50b) has a plurality of parallel auxiliary grooves (100, 100a, 100b). A paper, board or pulp drying machine has said shoe press belt (10). A method for installing the shoe press belt (10) is provided.Type: GrantFiled: December 17, 2019Date of Patent: July 5, 2022Assignee: VALMET TECHNOLOGIES OYInventors: Jari Jännetyinen, Vesa-Matti Riihioja
-
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
-
Publication number: 20210340707Abstract: A shoe press belt (10) for a shoe press has an inner surface (11), an outer surface (12), an elastomer body and a support structure (20, 21, 22, 23) for the elastomer body. A plurality of parallel dewatering grooves (50, 50a, 50b) are on the outer surface (12) of the shoe press belt (10), with a ridges (53) provided between two adjacent dewatering grooves (50a, 50b). The dewatering grooves (50, 50a, 50b) have a first wall (60), a second wall (70), and a bottom (80) therebetween. At least the first wall (60) of the dewatering groove (50, 50a, 50b) has a plurality of parallel auxiliary grooves (100, 100a, 100b). A paper, board or pulp drying machine has said shoe press belt (10). A method for installing the shoe press belt (10) is provided.Type: ApplicationFiled: December 17, 2019Publication date: November 4, 2021Applicant: Valmet Technologies OyInventors: Jari Jännetyinen, Vesa-Matti Riihioja
-
Patent number: 8986506Abstract: A shoe press belt, and a method for manufacturing and using it. The press belt comprises a base formed of heat-resistant elastomer, inside which base there is a support structure comprising a plurality of support yarns. At least some of the support yarns are heat-resistant polymer yarns, the polymer structure of the material of which comprises a naphthalene group.Type: GrantFiled: January 30, 2012Date of Patent: March 24, 2015Assignee: Valmet Technologies, Inc.Inventor: Vesa-Matti Riihioja
-
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
-
Publication number: 20130269895Abstract: A shoe press belt, and a method for manufacturing and using it. The press belt comprises a base formed of heat-resistant elastomer, inside which base there is a support structure comprising a plurality of support yarns. At least some of the support yarns are heat-resistant polymer yarns, the polymer structure of the material of which comprises a naphthalene group.Type: ApplicationFiled: January 30, 2012Publication date: October 17, 2013Applicant: METSO FABRICS INC.Inventor: Vesa-Matti Riihioja
-
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
-
Publication number: 20020153296Abstract: A fastening strip for fastening a filter cloth against the filter surface of a solid-liquid separator. The solid-liquid separator comprises at least one filter element provided with a fastening groove for the fastening strip. The filter cloth is fastened to the filter element by means of the fastening strip, whose fastening portion is inserted into the fastening groove. The fastening strip is an elongated piece having a substantially T-shaped cross section and comprising a fastening portion and a support portion transverse to the fastening portion. The support portion provides a protective edging that extends to a distance from the edges of the fastening groove.Type: ApplicationFiled: April 18, 2001Publication date: October 24, 2002Inventors: Matti Servo, Anssi Rantala, Vesa-Matti Riihioja
-
Patent number: D466601Type: GrantFiled: April 18, 2001Date of Patent: December 3, 2002Assignee: Tamfelt Oyj AbpInventors: Matti Servo, Anssi Rantala, Vesa-Matti Riihioja