Patents by Inventor Juha Paavolainen

Juha Paavolainen 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: 11987905
    Abstract: A monofilament yarn (10) has a polygon cross-section having a width and a height, which width is greater than the height, and four corners (11, 12, 13, 14) of which the first two opposite corners (11, 13) have angles of over 90 degrees, and the second two opposite corners (12, 14) have angles under 90 degrees, said width being 0.1 to 3 mm. The rounded first two opposite corners have a radius of 0.1 to 0.15 mm, and the rounded second two opposite corners have a radius of 0.075 to 0.1 mm. The yarn may be used to fabricate an industrial textile, which may be a papermaking fabric such as a dryer fabric or a forming fabric, or a filter fabric, such as a disc filter, a horizontal vacuum belt filter, a belt filter press, a twin wire press, a drum filter, a pan filter, a gravity table or a filter press.
    Type: Grant
    Filed: June 2, 2022
    Date of Patent: May 21, 2024
    Assignee: Valmet Technologies, Inc.
    Inventors: Rauno Enqvist, Hannu Martikainen, Juha Paavolainen
  • Publication number: 20220389618
    Abstract: A monofilament yarn (10) has a polygon cross-section having a width and a height, which width is greater than the height, and four corners (11, 12, 13, 14) of which the first two opposite corners (11, 13) have angles of over 90 degrees, and the second two opposite corners (12, 14) have angles under 90 degrees, said width being 0.1 to 3 mm. The rounded first two opposite corners have a radius of 0.1 to 0.15 mm, and the rounded second two opposite corners have a radius of 0.075 to 0.1 mm. The yarn may be used to fabricate an industrial textile, which may be a papermaking fabric such as a dryer fabric or a forming fabric, or a filter fabric, such as a disc filter, a horizontal vacuum belt filter, a belt filter press, a twin wire press, a drum filter, a pan filter, a gravity table or a filter press.
    Type: Application
    Filed: June 2, 2022
    Publication date: December 8, 2022
    Applicant: Valmet Technologies, Inc.
    Inventors: Rauno Enqvist, Hannu Martikainen, Juha Paavolainen
  • Patent number: 10982356
    Abstract: An industrial textile (1) having a longitudinal direction (MD) and a cross direction (CMD) and a first surface and a second surface, the industrial textile (1) extending in the cross direction from a first edge (E1) to a second edge (E2). The industrial textile (1) has a double warp which comprises a first warp having first machine direction yarns (U1, U2) and a second warp having second machine direction yarns (LI, L2). The yarns (U1, U2) of the first warp are arranged above the yarns (LI, L2) of the second warp and the yarns of the first warp are at least partially offset in respect of the yarns of the second warp. The industrial textile has a weft having cross machine direction yarns (W1, W2, W3, W4).
    Type: Grant
    Filed: March 21, 2018
    Date of Patent: April 20, 2021
    Assignee: VALMET TECHNOLOGIES OY
    Inventors: Rauno Enqvist, Juha Paavolainen
  • Patent number: 10633793
    Abstract: An industrial fabric is formed of several machine direction (MD) yarns and several cross machine direction (CMD) yarns. The MD-yarns are twisted relative their longitudinal axis so that the twisted yarns have sloped surfaces at least on a web side surface (P) of the textile. The textile is usable in paper machine, pulp machine or filtering machine.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: April 28, 2020
    Assignee: VALMET TECHNOLOGIES OY
    Inventors: Rauno Enqvist, Juha Paavolainen
  • Patent number: 10619301
    Abstract: The present invention relates to an industrial textile (1) for a drying process. The industrial textile (1) comprises a first surface (P) and a second surface (R); and longitudinal edge portions (EP1, EP2) and a centre portion (MP) between the edge portions (EP). The industrial textile comprises a sensor (2, 4). The present invention also relates to a method for measuring a condition on a surface of the industrial textile (1) and a use of the industrial textile (1).
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: April 14, 2020
    Assignee: VALMET TECHNOLOGIES OY
    Inventor: Juha Paavolainen
  • Publication number: 20190382928
    Abstract: The present invention relates to an industrial textile (1) having a longitudinal direction (MD) and a cross direction (CMD) and a first surface and a second surface, the industrial textile (1) extending in the cross direction from a first edge (E1) to a second edge (E2). The industrial textile (1) comprises a double warp which comprises a first warp comprising first machine direction yarns (U1, U2) and a second warp comprising second machine direction yarns (L1, L2). The yarns (U1, U2) of the first warp are arranged in above the yarns (L1, L2) of the second warp and the yarns of the first warp are at least partially offset in respect of the yarns of the second warp. The industrial textile comprises a weft comprising cross machine direction yarns (W1, W2, W3, W4).
    Type: Application
    Filed: March 21, 2018
    Publication date: December 19, 2019
    Inventors: Rauno ENQVIST, Juha PAAVOLAINEN
  • Publication number: 20190040579
    Abstract: The invention relates to an industrial fabric and its use. The industrial fabric (1) comprises several machine direction (MD) yarns (2, 2a, 2b) and several cross machine direction (CMD) yarns (3). The MD-yarns are twisted relative their longitudinal axis so that the twisted yams have sloped surfaces (4) at least on a web side surface (P) of the textile. The textile is usable in paper machine, pulp machine or filtering machine.
    Type: Application
    Filed: February 17, 2017
    Publication date: February 7, 2019
    Inventors: Rauno ENQVIST, Juha PAAVOLAINEN
  • Publication number: 20180291557
    Abstract: The present invention relates to an industrial textile (1) for a drying process. The industrial textile (1) comprises a first surface (P) and a second surface (R); and longitudinal edge portions (EP1, EP2) and a centre portion (MP) between the edge portions (EP). The industrial textile comprises a sensor (2, 4). The present invention also relates to a method for measuring a condition on a surface of the industrial textile (1) and a use of the industrial textile (1).
    Type: Application
    Filed: March 29, 2018
    Publication date: October 11, 2018
    Inventor: Juha Paavolainen