Patents by Inventor Marja Ojanen

Marja Ojanen 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).

  • Shoe press belt
    Patent number: 8568567
    Abstract: 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: Grant
    Filed: December 10, 2009
    Date of Patent: October 29, 2013
    Assignee: Metso Fabrics Inc.
    Inventors: Satu Hagfors, Vesa-Matti Riihioja, Marja Ojanen
  • SHOE PRESS BELT
    Publication number: 20120132384
    Abstract: 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: Application
    Filed: December 10, 2009
    Publication date: May 31, 2012
    Applicant: METSO FABRICS INC.
    Inventors: Satu Hagfors, Vesa-Matti Riihioja, Marja Ojanen
  • Drying wire
    Patent number: 8080136
    Abstract: A drying wire provided with an independent top fabric and bottom fabric. The bottom fabric is woven from longitudinal and cross direction monofilament yarns. The top fabric is woven from longitudinal yarns and shapeable cross direction yarns. The shapeable yarns make the structure of the top fabric denser and increase the contact surface area and the number of contact points. On the other hand, the bottom fabric is also smooth, wherefore it has good aerodynamic properties.
    Type: Grant
    Filed: April 24, 2007
    Date of Patent: December 20, 2011
    Assignee: Metso Fabrics Oy
    Inventors: Rauno Enqvist, Marja Ojanen
  • DRYING WIRE
    Publication number: 20090159148
    Abstract: A drying wire provided with an independent top fabric and bottom fabric. The bottom fabric is woven from longitudinal and cross direction monofilament yarns. The top fabric is woven from longitudinal yarns and shapeable cross direction yarns. The shapeable yarns make the structure of the top fabric denser and increase the contact surface area and the number of contact points. On the other hand, the bottom fabric is also smooth, wherefore it has good aerodynamic properties.
    Type: Application
    Filed: April 24, 2007
    Publication date: June 25, 2009
    Applicant: TAMFELT PMC OY
    Inventors: Rauno Enqvist, Marja Ojanen